A method for recycling and high-value utilization of green whole components of cow dung
Patent Information
- Application Number
- CN202511947640.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2025-06-04
- Filing Date
- 2025-12-15
- Publication Date
- 2026-10-23
AI Technical Summary
[0002]近年来,我国肉牛养殖规模持续扩大,年产生牛粪超10亿吨,传统处置方式以“简易堆肥还田”或“露天晾晒”为主,存在三大核心瓶颈:一是组分利用不彻底,仅针对牛粪中有机质进行初级转化,纤维素、矿物质及液态臭液多被丢弃,全组分利用率不足40%;二是高值化程度低,堆肥产品附加值仅50-80元/吨,远未挖掘纤维素改性、干馏转化等潜在价值;三是跨链协同缺失,牛粪处置与工业固废(如发酵法柠檬酸/乳酸菌丝体渣、生化法“中水”处理渣泥)、农林废弃物(秸秆)的资源化过程割裂,未形成“废弃物-产品-再利用”的闭环,导致整体循环效率低、环保负荷高;同时,现有技术忽略了“循环体系中单一功能模块的独立价值”——即未意识到中水净化、木醋碱化、粪污发酵等核心模块,在脱离牛粪循环时,仍能独立解决单一领域痛点(如工业废水处理、土壤改良、畜禽粪污制肥),造成技术潜力浪费
[0006]1.本发明首先聚焦模块A(牛粪高值转化模块)的核心工艺优势——子模块A1(牛粪制亲水疏解纤维)通过“间歇式逆流热浸取”工艺,产出含溶盐≤0.3%的低盐中水,该中水无需复杂脱盐即可输送至模块B(聚合硫酸铁或和生化法对“中水”资源化利用模块)净化回用,避免传统高盐废水处理的环保负荷;和/或子模块A2(牛粪基杂辅CMC)创新采用“水媒法工艺”制备适应沙漠或易起尘地等施用的牛粪基杂辅CMC,无需传统工艺中的用盐酸做中和以及过滤脱杂操作,同时通过用发酵法柠檬酸/乳酸所弃的废菌丝体渣(工业固废)来做粗中和,进一步降低环保成本与工艺复杂度。
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Abstract
Description
Technical Field
[0001] This invention belongs to the interdisciplinary field of agricultural waste resource utilization and environmental engineering, and agricultural and forestry processing, and specifically relates to a method for the green and high-value recycling of all components of cow manure. This method constructs a cross-chain collaborative system of four functional modules: "high-value conversion of cow manure, resource utilization of greywater, preparation of dry distillation products, and co-fermentation of manure and wastewater." This system enables the complete, waste-free utilization of cow manure, from "solid fiber and liquid odorous liquid" to related industrial wastes (such as fermentation mycelium residue, agricultural and forestry straw, and biochemical treatment sludge). Simultaneously, it produces a variety of high-value products, including hydrophilic fiber, cow manure-based CMC, smokeless charcoal, wood vinegar and its alkalized form, and compliant organic fertilizer. These products are applicable to scenarios such as agricultural soil improvement, desert dust control, residential heating / barbecuing, and environmental solid waste disposal, providing technical support for the high-value utilization of agricultural waste and cross-industry circular green development under the "dual carbon" goal. Furthermore, each functional module can also function as an independent technical solution when it is no longer limited by cow manure or requires no collaboration with other modules, specifically addressing resource utilization needs in a single field (such as greywater purification, soil conditioner preparation, and residential charcoal production). Background Technology
[0002] In recent years, the scale of beef cattle farming in my country has continued to expand, producing over 1 billion tons of cattle manure annually. Traditional disposal methods, primarily "simple composting and returning to the field" or "open-air drying," suffer from three major bottlenecks: First, incomplete component utilization, focusing only on primary conversion of organic matter in cattle manure while discarding cellulose, minerals, and liquid odorous substances, resulting in a total component utilization rate of less than 40%. Second, low value-added level, with compost products having an added value of only 50-80 yuan / ton, far from tapping into the potential value of cellulose modification and dry distillation. Third, lack of cross-chain collaboration, as cattle manure disposal is not integrated with industrial solid waste (such as fermentation). The resource utilization processes of citric acid / lactic acid mycelium residue, biochemical "grey water" treatment sludge, and agricultural and forestry waste (straw) are fragmented, failing to form a closed loop of "waste-product-reuse," resulting in low overall recycling efficiency and high environmental load. At the same time, existing technologies neglect the "independent value of a single functional module in the recycling system"—that is, they fail to realize that core modules such as grey water purification, wood vinegar alkalization, and manure fermentation can still independently solve pain points in single areas (such as industrial wastewater treatment, soil improvement, and livestock and poultry manure fertilizer) even when separated from the cow manure recycling system, resulting in a waste of technological potential.
[0003] This invention addresses the aforementioned pain points by using "full-component utilization of cow manure" as its core link. It integrates multiple technological pathways, including "chemical modification, biochemical treatment, dry distillation conversion, and fermentation and composting," to construct a synergistic system comprising Module A (cow manure to produce hydrophilic and hydrolytic fibers / cow manure-based hybrid CMC), Module B (biochemical "greywater" recycling), Module C (dry distillation of cow manure to obtain charcoal / wood vinegar alkalization products), and Module D (co-fermentation of manure and wastewater to produce organic fertilizer). This system not only achieves the green and high-value utilization of all components of cow manure in both solid and liquid states but also enables the disposal of cross-industry wastes such as fermentation mycelium residue, straw, and greywater sludge. It forms a complete chain technology system of "agricultural waste → industrial-grade products → agricultural applications → recycling," filling the gap in integrated technology of "co-factor synergy of cow manure – cross-industry waste disposal – multi-category high-value product output." This is an innovative application technology in the field of resource recycling. Summary of the Invention
[0004] This invention aims to provide a method for the green and high-value recycling of all components of cow manure. The core of this method is a cross-chain collaborative architecture based on "modules A+B as the foundation, and / or modules C / D combined." This architecture leverages the technological innovation of module A to address environmental and energy consumption challenges, while also linking multiple modules to achieve cross-domain waste collaborative disposal, ultimately constructing a closed-loop green recycling system of "waste-product-functional reuse." Furthermore, the modules are not forcibly bound together—when not involving cow manure restrictions or requiring support from other modules, modules B (reclaimed water), C2 (wood vinegar alkalization), C3 (charcoal preparation), and D (manure fermentation) can be implemented independently, each becoming a specialized technical solution for reclaimed water purification and reuse, soil conditioner production, domestic charcoal supply, and manure-to-organic fertilizer production, forming a dual-layer technological value of "overall recycling + independent application."
[0005] Specifically, the concept of this invention lies in:
[0006] 1. This invention first focuses on the core technological advantages of module A (high-value conversion module of cow dung) – sub-module A1 (cow dung to hydrophilic and hydrolytic fiber) produces low-salt wastewater with dissolved salt content ≤0.3% through an “intermittent countercurrent hot leaching” process. This wastewater can be transported to module B (polyferric sulfate or biochemical method for “wastewater” resource utilization module) for purification and reuse without complex desalination, avoiding the environmental burden of traditional high-salt wastewater treatment; and / or sub-module A2 (cow dung-based hybrid CMC) innovatively adopts a “water-based process” to prepare cow dung-based hybrid CMC suitable for application in deserts or dusty areas, eliminating the need for neutralization with hydrochloric acid and filtration and impurity removal operations in traditional processes. At the same time, it uses the waste mycelium residue (industrial solid waste) discarded from the fermentation of citric acid / lactic acid for coarse neutralization, further reducing environmental costs and process complexity.
[0007] 2. Based on the above, this invention solves key environmental protection problems in multiple fields through material supply and functional complementarity between modules:
[0008] Firstly, the ferric hydroxide carried in the water purification sludge of module B can be used as a filler for paper or as a catalyst for charcoal combustion (enhancing the self-ignition of charcoal in the air). Secondly, the actual deodorization needs arising from the hydrogen sulfide generation during the fermentation and composting process of module D can be utilized. This allows the ferric hydroxide-containing water purification sludge to contribute to deodorization while also harmlessly returning the organic matter carried by the water purification sludge to the earth.
[0009] Secondly, through module C (dry distillation of cow dung module), and through sub-module C1 ① batching, ② mixing and compaction, ③ dry distillation; and sub-module C2 (wood vinegar and / or wood vinegar alkalization liquid), and sub-module C3 (charcoal products), high-value wood vinegar derived from dry distillation of cow dung and its wood vinegar alkalization liquid and charcoal series products are obtained.
[0010] Third, through module D (manure co-fermentation module), the solid-liquid separation odorous liquid of cow manure and urine from module A (avoiding odor pollution from liquid waste) and the sludge containing iron hydroxide from module B (avoiding sludge landfill), and / or the addition of wood vinegar and / or wood vinegar alkalization liquid from sub-module C2, organic fertilizer that meets the standards or is more innovative is produced simultaneously.
[0011] Fourth, it ultimately achieves the complete waste-free utilization of "cow manure solid fiber + liquid odor liquid", as well as the resource utilization of fermentation mycelium residue, the complete utilization of reclaimed water, and the synergistic treatment of cross-industry wastes such as agricultural and forestry straw. Simultaneously, it produces high-value products such as hydrophilic degradable fiber, cow manure-based mixed auxiliary CMC, smokeless and easily combustible charcoal, wood vinegar and its wood vinegar alkalization liquid, and quick-dissolving or probiotic organic fertilizer. This not only solves the core pain points of traditional cow manure treatment, such as "incomplete utilization of components, low degree of high value, and lack of cross-chain synergy", but also provides green functional products for agriculture, environmental protection, and civil use, forming a closed-loop system integrating "environmental benefits - economic value - resource recycling". Technical solutions for implementing the concept of this invention
[0012] 1. A method for the green and high-value recycling of all components of cow manure, characterized in that: the system comprises modules A, B, or / and: a combination of C / D;
[0013] Module A is a high-value conversion module for cow manure, including a cow manure-based hydrophilic decomposable fiber submodule A1 and / or a cow manure-based hetero-auxiliary CMC submodule A2;
[0014] Module B is for the resource utilization of polyferric sulfate or biochemical regeneration of "reclaimed water";
[0015] Module C is used for the dry distillation of cow dung to obtain charcoal, wood vinegar, and its alkalization to obtain wood vinegar alkalization liquid products.
[0016] Module D is used to dispose of the odorous liquid from the solid-liquid separation of cow manure and urine from Module A, the purified sludge from "reclaimed water" in Module B, and mix it with livestock and poultry manure, including cow manure, for fermentation and composting to produce high-value organic fertilizer products such as fast-dissolving or probiotic types.
[0017] Modules A and B, or / and C / D, form a cross-chain collaboration of "waste-product-functional reuse" to achieve the green and high-value recycling of all components of cow manure.
[0018] 2. The method for the green and high-value recycling of all components of cow dung according to technical solution 1, characterized in that the process of sub-module A1 (cow dung to hydrophilic and porous fiber) includes:
[0019] (1) Raw material pretreatment: After solid-liquid separation, the loose fibers with a water content of no more than 60% obtained from the cattle manure and urine from the centralized cattle pen are graded using any level of sieve in the range of 7 to 28 mesh. After obtaining the long fibers on the sieve, they can be further desanded and impurities removed by air separation equipment or hydrocyclone to obtain the hot water soaking material 1.
[0020] (2) Intermittent countercurrent hot leaching: Using clean water containing ≤0.3% dissolved salt, the material to be leached was subjected to 3 hot leachings + 1 room temperature rinsing (all based on wet material weight):
[0021] First extraction: Hot water 1 (by dry weight): Water from countercurrent extraction 2, 3 and 4 times = 1:6~9, squeezed to obtain hot water 2 and the most concentrated water (for module B processing, or added to the "cattle manure from the centralized cattle pen" mentioned in (1) and then after solid-liquid separation, it is also for module B processing);
[0022] Second leaching: Hot water leaching material 2: Water from countercurrent leaching 3 and 4 times = 4:6~9, squeeze out the pulp to obtain hot water leaching material 3 and medium-concentrated water (for reuse in the first leaching);
[0023] Third leaching: Hot water leaching material 3: Water that has been leached 4 times in countercurrent = 4: 6~9, squeeze out the pulp to obtain material 4 to be leached at room temperature and low-concentration water (for reuse in the second leaching);
[0024] Room temperature immersion: The ratio of fresh clean water to recycled water is 4:6-9. The pulp is then extruded to obtain a wet hydrophilic and loose fiber material with a water content of 75%. The heat for hot immersion is generated by frictional heat from high-concentration milling machinery or by heating in a latex-reducing aging and heat preservation tank.
[0025] 3. The method for the green and high-value recycling of all components of cow dung according to technical solution 1, characterized in that the process of sub-module A2 (cow dung-based heterogeneous CMC) includes alkalization, etherification, coarse neutralization, drying, and pulverization steps, wherein:
[0026] (1) Raw material preparation: After solid-liquid separation, the loose fibers obtained from the cattle manure and urine from the centralized cattle pen are graded by any one of the 7 to 28 mesh sieves to obtain short fibers. The short fibers obtained from the cattle manure after impurity removal are used as the main raw material, which are calculated to have a moisture content of 15%.
[0027] (2) Alkalization: Add 25% to 35% sodium hydroxide / potassium hydroxide solution, short fiber:solution = 1:3 to 5 mass ratio, stir at 20 to 35℃ for 60 to 120 minutes.
[0028] (3) Etherification: Add sodium chloroacetate / potassium chloroacetate, sodium chloroacetate / potassium chloroacetate: short fiber (on dry weight) = 1:1~1.5 molar ratio, stir at 50~80℃ for 90~180 minutes to obtain crude CMC-Na / K intermediate product;
[0029] (4) Crude neutralization: Add liquid residue containing ≤40% solids of mycelium discarded during the fermentation of citric acid or lactic acid, or wood vinegar, to crude CMC-Na / K, and stir for no more than 0.5 h at 25℃~50℃ until the pH of the system is 8~9.
[0030] (5) Drying: Drying in a rake dryer at 60-90℃ until the moisture content is ≤15% and the pH is 7-8, to obtain the dehydrated and dried cow dung-based heterologous CMC intermediate product;
[0031] (6) Crushing: The dehydrated and dried cow dung-based mixed auxiliary CMC intermediate product is crushed into powder that passes through a 40-80 mesh sieve using a hammer mill;
[0032] (7) Mix in a hydrophobic barrier agent: Use any one or more of the following compositions selected from waste cooking oil, vegetable oil, and soap residue / adsorption and decolorization waste sludge from the oil and fat industry, and add them in an amount of 1% to 10% of the mass of the "powder" in item (6) above, and you will get a cow dung-based mixed auxiliary CMC powder product.
[0033] 4. The method for the green and high-value recycling of all components of cow manure according to technical solution 1, characterized in that module B is a biochemical method for the resource utilization of "reclaimed water," the process of which includes:
[0034] Module B processes the wastewater from the hot soaking process of producing hydrophilic fiber from cow manure in Module A1, which contains ≤0.3% dissolved salts. The wastewater is purified using a "polyferric sulfate sedimentation + activated biochemical sludge method" to obtain reclaimed water and clean water sludge with a solid content of ≤40% containing ferric hydroxide. The reclaimed water is reused in Module A1, while the clean water sludge is used as a filler for paper, or added to charcoal fuel products in Module C as a combustion catalyst, and / or added to the manure and poultry manure fermentation material in Module D, where the ferric hydroxide is used as an odor-removing agent for hydrogen sulfide and as a nutrient element for fertilizer.
[0035] 5. The method for the green and high-value recycling of all components of cow manure according to technical solution 1, characterized in that module C includes sub-modules C1, C2, and C3:
[0036] (1) Submodule C1 (dry distillation of cow dung blend): ① Batching: Wet cow dung with a solid content ≤40% after solid-liquid separation is mixed with straw powder with a solid content ≥80% to adjust the solid content to ≥75%, or 5-10% of the total mass of dry cow dung and straw powder with a water content of 15% is added from the clean water sludge from module B; ② After mixing, compaction: The mixture is mechanically extruded to form rods, blocks, or spheres; the diameter of the rods is in the range of 8-30 mm, and the cubic size of the blocks or spheres is in the range of 10-50 mm; ③ Dry distillation: The cow dung blend in rods or blocks is processed by dry distillation machinery to obtain wood vinegar and carbon rods or blocks or spheres with no volatile organic matter, and a small amount of crushed carbon / powder:
[0037] (2) Submodule C2 (Alkalization of wood vinegar): The dry distilled wood vinegar obtained in module C as described in item (1) above is neutralized with alkali powder. The alkali powder includes any or a combination of sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, lime powder + mirabilite powder, lime powder, calcium carbonate, wollastonite powder, talc powder, dolomite powder, red mud powder discarded by the aluminum industry, salt mud powder discarded by the chlor-alkali industry, boron magnesium mud powder discarded by the borax industry, and tailings powder discarded after magnesium extraction from dolomite. The neutralized solution is a multi-group commercial formulation or intermediate solution with pH buffering that can be easily mixed by downstream users. The total pH range of the "multi-group commercial formulation or intermediate solution with pH buffering" is pH 5.5 to 9.5. When the pH is neutralized to ≤7, the solution is adsorbed by activated carbon and filtered to obtain a clear liquid. The clear liquid is then packaged into a commercial product. The filtered sediment is sent to module D to be mixed with organic fertilizer or returned to submodule C1; or sent to the rubber / plastics industry as a body filler.
[0038] (3) Submodule C3 (Charcoal Products):
[0039] ① The charcoal rods, charcoal blocks, or charcoal balls obtained from submodule C1, which contain iron-containing elements and come from the clean water sludge in module B, are screened, sorted, and packaged to produce a type of charcoal product that burns without smoke in the air [and spontaneously combusts to produce ash, with the heavy metal (Pb / Cd / Cr / Hg) content in the ash meeting the requirements of GB 5085.3-2007 "Identification Standard for Hazardous Waste - Leaching Toxicity Identification"] for heating and grilling purposes;
[0040] ② For charcoal rods, charcoal blocks, charcoal balls, and a small amount of charcoal chips / powder that have not been mixed with the aforementioned water purification sludge, they can be further pulverized and then mixed with any or more of iron oxide, yellow mud, red clay, and water purification sludge from module B. The amount of the mixture is controlled within the range of 5-10% of the mass of the charcoal chips / powder, or a binder within the range of 3-5% of the mass of the charcoal chips / powder can be added. The binder includes any or more of starch, CMC, and cow dung-based mixed auxiliary CMC as described in technical solution 3. After being extruded and pressed or molded into any of the following solid charcoal shapes: auspicious heart shape, mooncake shape, zodiac animal shape, or blessing character shape, and then dried, shaped, and packaged, it is a charcoal product for heating or grilling that can be burned in the air without smoke and can spontaneously combust, producing toxic heavy metal ash within the standard limits.
[0041] 6. The method for the green and high-value recycling of all components of cow dung according to technical solution 1 is characterized in that module D is used to dispose of the odorous liquid from the solid-liquid separation of cow dung from module A, the purified sludge from "grey water" in module B, and livestock and poultry manure including cow dung, and ferment and decompose them to produce organic fertilizer; specifically including the following (1), (2), (3):
[0042] (1) Bionic pretreatment: Using the odorous liquid obtained from the solid-liquid separation of cow manure in Module A, it is added to livestock and poultry manure to prepare a slurry with the most pungent manure content of 65% to 80% moisture content, and then introduced into a closed reaction tank (5-50m). 3 The temperature is controlled at 37±2℃. Compound digestive enzyme (containing cellulase and protease, used to degrade crude fiber and eliminate malodor) is added at 0.8% to 2.0% of the raw material mass. The mixture is stirred intermittently (60 to 120 r / min, stirring for 1 to 10 min / stopping for 1 to 5 min) until the malodorous components are ≤10% of the feed (ammonia ≤10 ppm, hydrogen sulfide ≤5 ppm) and small molecules are ≥70%. The time is in the range of 3 to 12 hours to obtain odorless enzymatic hydrolysis slurry intermediate product 1.
[0043] (2) Aerobic fermentation: The intermediate product 1 described in item (1) of this module D is mixed with the intermediate product 2, which is pre-fermented straw with a water content of 30% (pre-fermentation process: straw is crushed to 5-10mm, composted at 50℃ for 3 days, and turned over twice during the period), and then mixed with livestock and poultry manure with a water content of ≤50% to a total water content of 55%-60%. The mixture is introduced into the fermentation tank, and 1%-2% of the mass of the mixed livestock and poultry manure with a total water content of 55%-60% is sprayed. After multiple turning and water spraying operations in the fermentation tank, and after more than 25 days of aerobic fermentation in the tank, organic fertilizer that meets the requirements of NY / T525-2021 is obtained.
[0044] (3) Granulation or compounding followed by granulation: The temperature of the granulated material is strictly controlled below 60℃, and the moisture content of the material entering the granulator is controlled within the range of 25-35%, to obtain any one or more of the following products: quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021), quick-dissolving granular organic-inorganic compound fertilizer (corresponding to GB / T18877-2020), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥100 million CFU / g, survival period ≥30 days, corresponding to standard NY884-2012), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥100 million CFU / g, survival period ≥30 days, corresponding to the Ministry of Agriculture and Rural Affairs standard NY884-2012).
[0045] 7. The method for the green and high-value recycling of all components of cow manure according to any one of technical solutions 1 to 6, characterized in that, through the combination of modules A, B, or C / D, the material collaborative transport and compatibility control meet the following requirements:
[0046] (1) Material transfer connection: The water (containing ≤0.3% dissolved salt) generated by module A1 needs to be transported to module B, and the clean water sludge (containing ≤40% solids) generated by module B needs to be distributed to module C or D; the wood vinegar generated by module C1 needs to be alkalized in the C2 process to obtain wood vinegar alkalization liquid with a soluble purity ≥90%.
[0047] (2) Compatibility control: When fermenting in module D, the amount of water purification sludge added in module B shall not exceed 8% of the mass of livestock and poultry manure mixture; when preparing charcoal in module C3, if cow manure-based mixed auxiliary CMC from module A2 is added as a binder, its addition amount shall be controlled at 3% to 5% of the mass of crushed charcoal / powder.
[0048] (3) Quality traceability: When materials are transferred between modules, “source module - transfer time - key parameters” (such as the carboxyl content of CMC in module A2 and the calorific value of charcoal in module C) must be recorded to form a traceable ledger and ensure that the end products (such as organic fertilizer and charcoal) meet the corresponding industry standards (NY / T525-2021 Organic Fertilizer Standard and GB / T 30727-2014 Charcoal for Barbecue).
[0049] 8. The method for the green and high-value recycling of all components of cow manure according to any one of technical solutions 1 to 7, characterized in that the core performance indicators and operational requirements of the terminal products of modules A, C, and D in specific application scenarios are as follows:
[0050] (1) Module A2 CMC powder product based on cow dung: When used as a dust suppressant in deserts / dust-prone areas, add water to 4-16 kg of powder to prepare a 1.000m³ solution. 3 The gel is sprayed at a rate of 10-17m per acre. 3Within 4 hours of spraying, a hardened, water-retaining gel shell forms on the ground surface, with a dust reduction efficiency of ≥60%. Under moderate rain conditions (rainfall ≤15mm / 24h), the gel shell will absorb water and soften, but the gel shell retention rate is ≥70%. When used as a binder for organic fertilizer microcapsules in acidic soil conditioners, the addition amount is 5%–8% of the total mass of the conditioner and organic fertilizer microcapsules, which can increase the particle formation rate of the conditioner-carrying organic fertilizer microcapsules to ≥92%. p Thirty days after application of H4.5 in red soil, the content of soil aggregates (>0.25mm) increased by ≥15%;
[0051] (2) Module C3 charcoal products: The calorific value of charcoal for heating is ≥3500kcal / kg, the burning time is ≥3 hours / kg, and there is no visible smoke during combustion; the charcoal for barbecue can be ignited in the air or activated by (800~900℃), the ash content is ≤18%, and the products comply with GB / T 30727-2014 "Charcoal for Barbecue" standard;
[0052] (3) Module D Organic Fertilizer Products: The solubility rate of quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) in water at 20℃ is ≥80% / 30min, and it is suitable for drip irrigation systems (filter pore size ≥1.2mm); the solubility rate of quick-dissolving granular bio-organic fertilizer (live bacteria count ≥100 million CFU / g, survival period ≥30 days, corresponding to the Ministry of Agriculture and Rural Affairs standard NY884-2012) is ≥100 million CFU / g, and the survival period is ≥30 days. When applying it, it should be avoided to use it at the same time as fungicides.
[0053] 9. The method for the green and high-value recycling of all components of cow manure according to any one of technical solutions 1 to 8, wherein the cow manure-based hydrophilic fiber, cow manure-based mixed auxiliary CMC powder, reclaimed water, reclaimed water sludge, cow manure-based straw vinegar and the alkalized vinegar obtained by alkali neutralization, any of the following can be an independent product: quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021), quick-dissolving granular organic-inorganic compound fertilizer (corresponding to GB / T18877-2020), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days, corresponding to standard NY884-2012), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days, corresponding to the Ministry of Agriculture and Rural Affairs standard NY884-2012). Attached Figure Description
[0054] Figure 1 A schematic diagram of a method for the green and high-value recycling of all components of cow manure.
[0055] Figure 2 Expand Figure 1 Expand Figure 1The block diagram in A1 involves a "solid-liquid intermittent countercurrent thermal contact water immersion operation" for making a cow dung-based hydrophilic decomposable fiber module using cow dung.
[0056] Figure 3 Black and white photos comparing cow dung-based hydrophilic fiber made from cow dung and raw cow dung in water.
[0057] Figure 4 Expand Figure 2 A black-and-white comparison of the color gradation of the "most concentrated 'medium water'" described in step 1 and tap water.
[0058] Figure 5 Using "polyferric sulfate precipitation method and biochemical method" to... Figure 4 The image shown is a black and white photograph of sludge cakes produced during the purification and filtration of "reclaimed water".
[0059] Figure 6 : Figure 2 The black and white photograph of the cow dung-based hydrophilic fibrous material shows that it was pressed and shaped by hand in a plastic cup while still wet, and after being poured out and dried, it exhibits a strong and resilient bonding force that does not crumble when squeezed by hand.
[0060] Figure 7 A black and white photograph shows the excrement (containing fibers) of longhorn beetle larvae after they bore into willow trees. The excrement, at a moisture content of 75%, was manually pressed and shaped in a disposable cup, then poured out and dried. The fibers formed intertwined, hard clumps. [Note 1: The fibers in this excrement have lignin removed by enzymes within the longhorn beetle larvae. After simple pulping, they can be used to make kraft paper, serving as an industrial compatibility standard for hydrophilic, non-abrasive fibers (for judgment).] Figure 6 (Whether the fiber meets the raw material requirements of the waste paper recycling industry).
[0061] Figure 8 Black and white photograph of biomass pellet fuel made from cow dung.
[0062] Figure 9 Black and white photograph of the char obtained after dry distillation of biomass pellet fuel made from cow dung to remove volatile organic compounds, which is a mixture of powder / crushes and broken pellets.
[0063] Figure 10 A black and white photograph of wood vinegar obtained by condensing the distilled organic volatiles during the dry distillation of biomass pellet fuel made from cow dung, as shown in a glass. (Note 2: This wood vinegar mixed with tar only needs to be acidified or alkalized to a pH value ≤ 7.0, with the addition of 1‰ to 2% activated carbon, followed by filtration, to obtain a clear liquid—the alkalized wood vinegar product.)
[0064] Figure 11The mud slurry, made from cow dung-based mixed CMC-Na and mixed with room temperature water in one go, is presented in a plastic cup lid with a mass concentration of 1‰ (this is the most extreme method of dilution with water, as ordinary CMC-Na always causes severe clumping). This is a black and white photo of the mud slurry without clumping.
[0065] Figure 12 This is a black and white photo of quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) granules produced when the temperature of the granulated material is strictly controlled below 60℃ and the moisture content of the material entering the granulator is controlled within the range of 25-35%.
[0066] Figure 13 This is to Figure 12 A black and white photograph of a granule of the "instant soluble granular organic fertilizer (corresponding to NY / T525-2021)" and water to be added to a plastic cup lid.
[0067] Figure 14 This is to Figure 12 A black and white photograph of a granule of the "instant granular organic fertilizer (corresponding to NY / T525-2021)" after being added to water in a plastic cup lid 15 minutes later. It can be clearly seen that the nutrients in the granular fertilizer dissolved in the water and showed obvious brown marks.
[0068] Figure 15 This is to Figure 12 A black and white photograph of a granule of the "instant granular organic fertilizer (corresponding to NY / T525-2021)" after being added to water in a plastic cup lid 15 minutes later. It can be clearly seen that the nutrients in the granular fertilizer dissolved in the water and showed obvious brown marks.
[0069] Figure 16 This is to Figure 12 A black and white photograph of one granule of the "fast-dissolving granular organic fertilizer (corresponding to NY / T525-2021)" after being added to water in a plastic cup lid one hour later clearly shows that more nutrients in the granular fertilizer have been dissolved in the water (the brown coloring is darker than before). Figure 15 Furthermore, the particles are more numerous and finer fragmented (Note 3: Ordinary granular organic fertilizer, after being soaked in water for 3 days, still has intact particles, and the brown traces of its nutrients dissolved in water are small and few, just like...). Figure 14 (As shown). Detailed Implementation
[0070] The technical solution of the present invention will be described more completely below with reference to embodiments. Obviously, the described embodiments are only a part of the embodiments of the technical solution of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention. Example 1. (Corresponding to claim 1, core: full-component cyclic architecture)
[0071] A method for the green and high-value recycling of all components of cow manure, characterized in that: the system comprises modules A, B, or / and: a combination of C / D;
[0072] Module A is a high-value conversion module for cow manure, including a cow manure-based hydrophilic decomposable fiber submodule A1 and / or a cow manure-based hetero-auxiliary CMC submodule A2;
[0073] Module B is the resource utilization of biochemically regenerated "greywater"; the "regeneration of greywater" specifically means that the regenerated water obtained from the "greywater" is reused in the production of hydrophilic and degradable fibers from cow manure in submodule A1, and the resulting purified sludge containing ferric hydroxide is mixed into module C to become an oxidation catalyst in the dry distillation of cow manure and charcoal to help the charcoal spontaneously combust in the air to turn into ash, and / or is mixed into module D organic fertilizer to utilize the ferric hydroxide and organic matter contained in the purified sludge as a deodorizing agent for hydrogen sulfide and organic fertilizer nutrients;
[0074] Module C is a dry distillation of cow dung to obtain charcoal, wood vinegar, and its wood vinegar alkalization solution;
[0075] Module D is used to dispose of the foul liquid from the solid-liquid separation of cow dung from Module A, the purified sludge from "reclaimed water" from Module B, and mix it with livestock and poultry manure, including cow dung, for fermentation and decomposition to produce organic fertilizer.
[0076] Modules A and B, or combinations of C and D, form a cross-chain collaboration of "waste-product-functional reuse," realizing the green and high-value recycling of all components of cow manure.
[0077] [Explanation of corresponding figures]
[0078] See Figure 1This diagram illustrates a method for the green and high-value recycling of all components of cow manure. The diagram, divided by dashed lines, shows four main modules: A (high-value conversion of cow manure), B (reclaimed water regeneration), C (dry distillation products), and D (organic fertilizer preparation). Solid arrows clearly demonstrate the material transfer pathways—for example, reclaimed water from A1 is introduced into B; the purified water and sludge from B are distributed to C / D; the wood vinegar from C, after alkalization, can be used for saline-alkali land improvement; and the readily soluble organic fertilizer from D can be applied to desert areas, saline-alkali land, acidified land, and normal fields. It visually presents a closed-loop structure: "waste (cow manure) - resources (cow manure-based CMC, wood vinegar and wood vinegar alkalization solution, readily soluble organic fertilizer series) - desert / dust-prone land / saline-alkali land / acidified land - ecological benefits (dust reduction, soil improvement, increased crop yield - cattle farming -)," clearly defining the core application scenarios for each module's products. Example 2. (Corresponding to claim 2, core: A1 hydrophilic desiccant fiber process)
[0079] The method for the green and high-value recycling of all components of cow dung according to Example 1 is characterized in that the process of sub-module A1 (producing hydrophilic and porous fibers from cow dung) includes:
[0080] (1) Raw material pretreatment: After solid-liquid separation, the loose fibers with a water content of no more than 60% obtained from the cattle manure and urine from the centralized cattle pen are graded using any level of sieve in the range of 7 to 28 mesh. After obtaining the long fibers on the sieve, they can be further desanded and impurities removed by air separation equipment or hydrocyclone to obtain the hot water soaking material 1.
[0081] (2) Intermittent countercurrent hot leaching: Using clean water containing ≤0.3% dissolved salt, the material to be leached was subjected to 3 hot leachings + 1 room temperature rinsing (all based on wet material weight):
[0082] First extraction, ingredients: hot water 1 (by dry weight): water that has been extracted 2, 3 and 4 times in countercurrent immersion = 1:6~9, squeezed to separate solid and liquid, to obtain hot water 2 and the most concentrated water (for module B to process, or added to the "cattle manure from the centralized cattle pen" mentioned in (1), and then after solid-liquid separation, it is also for module B to process);
[0083] Second leaching, ingredients: hot water leaching material 2: water that has been leached 3 and 4 times in countercurrent leaching = 4: 6~9, squeeze to separate solid and liquid, to obtain hot water leaching material 3 and medium-concentrated water (for reuse in the first leaching).
[0084] The third leaching process involves the following ingredients: material 3 to be leached in hot water and water that has already undergone four countercurrent leaching cycles in a ratio of 4:6 to 9. The mixture is then squeezed to separate the solid and liquid components, yielding material 4 to be leached at room temperature and low-concentration water (for reuse in the second leaching).
[0085] Room temperature immersion washing, ingredients: 4 parts of material to be immersed at room temperature: fresh clean water / recycled water = 4:6~9, extrusion to separate solid and liquid, to obtain wet hydrophilic decomposable fiber material with a water content of 75%;
[0086] As mentioned above, the heat for the "three hot extractions" comes from the frictional heat generated by the high-concentration grinding machinery or the heating of the anti-latency aging and heat preservation tank. That is, the "ingredient preparation" mentioned above is achieved by adding a stirrer in the anti-latency aging and heat preservation tank, and the "squeezing for solid-liquid separation" mentioned above is achieved by adding a pulping machine outside the outlet of the anti-latency aging and heat preservation tank.
[0087] [Explanation of corresponding figures]
[0088] 1. See Figure 2 Expand Figure 1 The diagram in A1 shows the "intermittent countercurrent thermal contact water immersion operation between solid and liquid". The diagram clearly shows the process of "hot water immersion material 1 → first immersion (out of immersion material 2 + most concentrated water) → second immersion (out of immersion material 3 + medium-concentrated water) → third immersion (out of washing material 4 + low-concentration water) → room temperature washing (out of hydrophilic decomposing fiber + regenerated water)", which corresponds completely to the immersion sequence of step (2) in this embodiment. It intuitively reflects the energy-saving logic of "water reuse". The flow direction of "most concentrated water" can be directly related to the processing technology of module B.
[0089] 2. See Figure 3 Black and white photos comparing cow dung-based hydrophilic fiber made from cow dung and raw cow dung in water. Figure 3 The “sinking substrate” on the left is the hydrophilic and degradable fiber obtained by A1 in this case, which is controlled to have a high degree of hydrophilicity with a freeness of ≥16°SR [the testing standard for this parameter is according to GB / T 33324-2016 "Determination of pulp freeness"], proving its process characteristic of “sinking immediately upon entering room temperature water” - this characteristic enables it to be used in pulp tanks for papermaking; the “floating substrate” on the right is untreated cow dung raw material, highlighting the technical value of the A1 process in comparison. Example 3. (Corresponding to claim 3, core: A2 cow dung-based mixed-auxiliary CMC process)
[0090] According to the method for the green and high-value recycling of all components of cow dung as described in Example 1, the process of sub-module A2 (cow dung-based heterologous CMC) includes alkalization, etherification, coarse neutralization, drying, and pulverization steps, wherein:
[0091] (1) Raw material preparation: After solid-liquid separation, the loose fibers obtained from the cattle manure and urine from the centralized cattle pen are graded by any one of the 7 to 28 mesh sieves to obtain short fibers. The short fibers obtained from the cattle manure after impurity removal are used as the main raw material, which are calculated to have a moisture content of 15%.
[0092] (2) Alkalization: Add 25% to 35% sodium hydroxide / potassium hydroxide solution, short fiber:solution = 1:3 to 5 mass ratio, stir at 20 to 35℃ for 60 to 120 minutes.
[0093] (3) Etherification: Add sodium chloroacetate / potassium chloroacetate, sodium chloroacetate / potassium chloroacetate: short fiber (on dry weight) = 1:1~1.5 molar ratio, stir at 50~80℃ for 90~180 minutes to obtain crude CMC-Na / K intermediate product;
[0094] (4) Crude neutralization: Add liquid residue containing ≤40% solids of mycelium discarded during the fermentation of citric acid or lactic acid, or wood vinegar, to crude CMC-Na / K, and stir for no more than 0.5 h at 25℃~50℃ until the pH of the system is 8~9.
[0095] (5) Drying: Drying in a rake dryer at 60-90℃ until the moisture content is ≤15% and the pH is 7-8, to obtain the dehydrated and dried cow dung-based heterotrophic CMC-Na / K intermediate product;
[0096] (6) Crushing: The dehydrated and dried cow dung-based heterogeneous CMC-Na / K intermediate product is crushed into powder that passes through a 40-80 mesh sieve using a hammer mill;
[0097] (7) Add hydrophobic barrier agent: Use any one or more of the following combinations selected from waste cooking oil, vegetable oil, soap residue / adsorption and decolorization waste sludge from the oil and fat industry, and purification sludge from the "most concentrated water" in submodule A1, and add the amount of 1% to 10% of the mass of the "powder" in item (6) above to obtain cow dung-based mixed auxiliary CMC-Na / K powder product.
[0098] [Explanation of corresponding figures]
[0099] See Figure 11 A black and white photograph of the wood vinegar obtained by condensing the distilled organic volatiles during the dry distillation of biomass pellet fuel made from cow dung, as shown in a glass. The "wood vinegar for coarse neutralization" in step (4) of this embodiment is derived from the product shown in this figure (a byproduct of the dry distillation of cow dung pellet fuel in module C1). It synergistically neutralizes the liquid residue from the mycelium, avoiding the CMC degradation caused by traditional strong acid neutralization. More importantly, the final CMC powder product has "anti-caking and dissolving" properties—see... Figure 11 The CMC powder was mixed into a slurry with a mass concentration of 1‰ in a single step (the most extreme dilution method). No lumps were observed in the photo. This characteristic gives it a significant advantage in saline-alkali land improvement. When mixed with the fast-dissolving organic fertilizer from Module D and the sodium wood vinegar with calcium sulfate dihydrate from Module C2 to prepare the slurry, it can be evenly dispersed without multiple stirrings. Spraying 2-3 cubic meters of slurry per acre ensures uniform coverage of the 0-20cm soil layer, preventing soil compaction caused by excessively high local CMC concentrations. Furthermore, when used for dust control in desert areas, this CMC powder is mixed at a rate of 4-16 kg per 1 cubic meter of water.3 Apply gel at a rate of 10-17m³ per acre. 3 A hardened gel shell forms within 4 hours, with a dust reduction efficiency of ≥60% and a retention rate of ≥70% under moderate rain conditions.
[0100] [Comparative Example]: The core distinguishing dimensions of various known CMC processes are listed below (Table 1):
[0101] The most closely related known CMC process is the aqueous method (also known as the "aqueous solution method") in the table above. The core feature of this process is that water is used as the only reaction medium, and the alkalization and etherification reactions are carried out in the aqueous solution without the need for additional organic solvents. It is the earliest industrialized CMC production process.
[0102] Its key process steps include:
[0103] 1. Raw material pretreatment: After the refined cotton / wood pulp is crushed, it is soaked in hot water (50-60℃) for 1-2 hours to remove a small amount of impurities and soften the fibers;
[0104] 2. Alkalization reaction: The softened cellulose is mixed with a 30%-40% NaOH aqueous solution (liquid-solid ratio 3-5:1) and stirred at 20-30℃ for 60-90 minutes to generate alkali cellulose (Cell-O-Na); (Note 4: "Cell" is an abbreviation for "Cellulose". When describing the preparation process of CMC (sodium carboxymethyl cellulose), it specifically refers to the core skeleton of the cellulose molecular chain and is a commonly used expression in the industry to simplify chemical structures and reaction formulas.)
[0105] 3. Etherification reaction: Add chloroacetic acid (or sodium chloroacetate) to the alkali cellulose system, heat to 50-70℃, stir for 120-180 min, and the chloroacetic acid reacts with the hydroxyl groups of alkali cellulose to generate CMC;
[0106] 4. Neutralization and post-treatment: Neutralize excess NaOH with hydrochloric acid to pH 6.5-7.5, filter to remove unreacted cellulose residue, concentrate the filtrate, dry (80-90℃), and pulverize to obtain the CMC product.
[0107] Product Features and Applicable Scenarios
[0108] Advantages: Simple equipment (only requires a mixing tank and a concentration tank), no solvent recovery costs, and low investment;
[0109] Disadvantages: uneven reaction (cellulose tends to agglomerate in aqueous medium), low product substitution degree (0.4-0.8), and low purity (containing a lot of NaCl impurities);
[0110] Applicable scenarios: Low-end industrial fields, such as thickeners for paper pulp, sizing agents for textiles, and thickeners for ordinary detergents.
[0111] The main difference between this solution and the previous one is that the neutralization and post-treatment are different. The neutralization uses "the liquid residue with a solid content of ≤40% of mycelium discarded from the production of citric acid or lactic acid by fermentation, or wood vinegar". After neutralization, "filtration is not performed to remove unreacted cellulose residue" (the unreacted residue is natural cellulose, which can be further decomposed into organic matter by microorganisms after being applied to the soil, improving the soil aggregate structure and forming a synergy with the water retention and salt control function of CMC).
[0112] Therefore, submodule A2 in module A of this solution possesses novelty, inventiveness, and utility, and can be independently established as a patent separate from modules A1, B, and C / D. Example 4. (Corresponding to claim 4, core: water utilization in module B)
[0113] The method for the green and high-value recycling of all components of cow dung as described in Example 1 is characterized in that module B is a biochemical method for the resource utilization of "reclaimed water," and its process includes:
[0114] Module B processes the wastewater from the hot soaking process of producing hydrophilic fiber from cow manure in Module A1, which contains ≤0.3% dissolved salts. The wastewater is purified using "polyferric sulfate sedimentation, or activated biochemical sludge method" to obtain reclaimed water and purified sludge with a solid content ≤40% containing "Fe(OH)3↓". The reclaimed water is reused in Module A1. The purified sludge can be used for at least one or more of the following three purposes: First, it can be used as a filler in paper, such as core paper, roll paper, and corrugated paper, replacing 50% to 100% of any one or more combinations of calcium carbonate, clay, and iron oxide; Second, it can be incorporated into charcoal fuel products in Module C as an oxidizing combustion catalyst; Third, it can be incorporated into the fermented manure and poultry manure in Module D, utilizing the iron hydroxide as an oxidizing catalyst for desulfurization and a nutrient element in fertilizer. If polyferric sulfate is used alone for sedimentation, the dosage needs to be increased to 0.3-0.5 g / L, which can reduce the COD of the reclaimed water to below 120 mg / L. If activated biological sludge process is used alone, the hydraulic retention time needs to be extended to 15-18 hours, and the sludge concentration needs to be maintained at 4000-5000 mg / L to ensure that the COD of the reclaimed water is ≤100 mg / L.
[0115] In Module B of this solution, regarding the resource utilization of water purification sludge, compared to the current waste paper recycling industry's use of polyaluminum chloride, aluminum sulfate, alum, and other agents to treat wastewater containing ≤0.3% dissolved salts, the choice of polyferric sulfate in this solution may seem difficult for the industry to accept from a cost perspective. However, this precisely reflects that the current industry has not considered the "selection of water purification agents" in conjunction with the "subsequent resource utilization of water purification sludge," lacking such a necessary design logic.
[0116] Therefore, it is evident that the design of this solution is novel, inventive, and practical. Thus, the combination of module B and sub-module A1 in module A, even without module A2 and C / D modules, already meets the "three requirements" for patent establishment. Furthermore, if module B is not combined with sub-module A1 in module A, it can also serve as an independent technical solution and form an independent embodiment in other fields.
[0117] [Explanation of corresponding figures]
[0118] 1. See Figure 4 Expand Figure 2 A black-and-white comparison of the color gradation of the "most concentrated 'medium water'" described in step 1 and tap water. Figure 4 The "most concentrated wastewater" on the left is dark brown (containing organic matter leached from cow dung fibers and a small amount of salts), while the right side is clear tap water. This visually demonstrates the pollution state of the wastewater before treatment by Module B and explains why "polyferric sulfate sedimentation" is necessary—to adsorb organic matter through iron ion flocculation, thereby reducing the color and COD of the wastewater.
[0119] 2. See Figure 5 Using "polyferric sulfate precipitation method and biochemical method" to... Figure 4 The image shown is a black and white photograph of sludge cakes produced during the purification and filtration of "reclaimed water".
[0120] The sludge cake is the "purified water sludge containing 'Fe(OH)3↓' ferric hydroxide" described in this embodiment. When it is mixed into the fermentation material of module D, the "Fe(OH)3↓" ferric hydroxide can react with the "H2S↑" hydrogen sulfide in the sewage to generate "FeS↓" ferrous sulfide (odorless). Then, it reacts with "O2↑" oxygen in the air, causing the "FeS↓" ferrous sulfide to be oxidized into "Fe(OH)3↓" ferric hydroxide and "S↓" sulfur. That is, the purified water sludge containing ferric hydroxide actually becomes a catalyst for the "2H2S↑+O2=2H2O+2S↓" deodorization reaction.
[0121] [Note 5: The optimal pH range for deodorization is 7.0–8.0; 1) When pH < 7.0, Fe(OH)3 will react with acidic substances and dissolve (generating Fe 3+ 1) It loses its ability to bind with H2S; 2) When pH>8.0, H2S will convert to HS-H2S. - / S 2- Form exists, with Fe 2+ The generated FeS is easily decomposed, resulting in a decrease in deodorization efficiency; 3) The pH of the fermentation material in module D can be adjusted to this range by adding a small amount of wood vinegar (pH 3.0-4.0). The fermentation temperature is in the range of 50 to 65℃. 1) This temperature is the "high-temperature maturation period" of compost (the key stage for killing pathogens), and the amount of H2S produced is the highest (accounting for 60% to 70% of the total release); 2) For every 10℃ increase in temperature, the reaction rate of Fe(OH)3 with H2S increases by 15% to 20%, but >65℃ will lead to a decrease in the FeS oxidation and regeneration efficiency (microbial activity is inhibited). The oxygen supply intensity is 24-48 hours between turning the pile (O2 content of the pile is 5%-8%). 1) When the oxygen supply is insufficient (O2 < 3%), FeS cannot be oxidized and regenerated, and Fe(OH)3 will be gradually consumed, shortening the deodorization cycle to 3-5 days; 2) Turning the pile at this interval can ensure the cycle efficiency of FeS→Fe(OH)3, extending the deodorization cycle to 15-20 days (covering the entire composting cycle). Water purification sludge addition amounts: 1) 5-8 kg / ton of manure, H2S deodorization efficiency (after 24 hours) 80%-85%, effective for 10-12 days, suitable for manure with "cow manure as the main component (≥70%)", low H2S production, can be combined with straw in the organic fertilizer of module D to adjust permeability; 2) 8-10 kg / ton of manure, H2S deodorization efficiency (after 24 hours) 90%-95%, effective for 15-18 days, suitable for high H2S manure with "chicken manure accounting for ≥40%", should be mixed evenly with the manure when adding (avoid local accumulation leading to Fe(OH)3 waste); 3) >10 kg / ton of manure, H2S deodorization efficiency (after 24 hours) 95%-97% (limited increase), effective for 18-20 days, suitable for high H2S manure with "chicken manure accounting for ≥40%", should be mixed evenly with the manure when adding (avoid local accumulation leading to Fe(OH)3 waste). ]
[0122] Meanwhile, the iron in ferric hydroxide can also serve as a trace element, enhancing the nutritional value of organic fertilizer. When used in saline-alkali land, this iron-containing organic fertilizer can promote crop root development (e.g., increasing corn root length by 20%–30%). When mixed with charcoal from module C3, the iron acts as an oxidation catalyst, enabling the charcoal to burn slowly in the air to ash. Alternatively, the purified water sludge can be incorporated into sub-module A2 as a hydrophobic barrier agent for reuse. The reclaimed water from module B is reused in the hot leaching process of A1, reducing fresh water usage by 30%–40% (Note 6: the remaining water is carried into the pulp tank of the downstream papermaking production line in the form of wet material by the hydrophilic fiber based on cow manure), conforming to the "green recycling" concept. The reclaimed water is reused in sub-module A1. Example 5. (Corresponding to claim 5, core: dry distillation of module C and alkalization of wood vinegar)
[0123] The method for the green and high-value recycling of all components of cow dung according to Example 1 is characterized in that module C includes sub-modules C1, C2, and C3:
[0124] (1) Submodule C1 (dry distillation of cow dung blend): ① Batching: Wet cow dung with a solid content ≤40% after solid-liquid separation is mixed with straw powder with a solid content ≥80% to adjust the solid content to ≥75%, or 5-10% of the total mass of dry cow dung and straw powder with a water content of 15% is added from the clean water sludge from module B; ② After mixing, compaction: The mixture is mechanically extruded to form rods, blocks, or spheres; the diameter of the rods is in the range of 8-30 mm, and the cubic size of the blocks or spheres is in the range of 10-50 mm; ③ Dry distillation: The cow dung blend in rods or blocks is processed by dry distillation machinery to obtain wood vinegar and carbon rods or blocks or spheres with no volatile organic matter, and a small amount of crushed carbon / powder:
[0125] (2) Submodule C2 (Alkalization of Wood Vinegar): The dry distilled wood vinegar obtained in submodule C1 is neutralized with alkali powder. The alkali powder includes any or a combination of sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, lime powder + mirabilite powder, lime powder, fly ash, wood ash, calcium carbonate, wollastonite powder, talc powder, dolomite powder, red mud powder discarded from the aluminum industry, salt mud powder discarded from the chlor-alkali industry, boron-magnesium mud powder discarded from the borax industry, and tailings powder discarded after magnesium extraction from dolomite. If wood ash is used alone for neutralization, it needs to be added at 8% to 10% of the wood vinegar mass. Neutralization to pH 6.0 to 6.5 requires stirring for 40 to 60 minutes. If sodium hydroxide is used, the addition amount is 0.8–1.2 g / L, and the neutralization efficiency is 20%–30% higher than that of sodium carbonate, making it suitable for the rapid preparation of high pH (8.5–9.0) formulations. The neutralized solution facilitates downstream application by blending multiple commercial formulations or intermediate solutions with pH buffering capabilities. The total pH range of these "multiple commercial formulations or intermediate solutions with pH buffering capabilities" is pH 5.5–9.5. The pH range of each of the aforementioned "multiple pH buffering solutions" is also determined by market demand and ease of production, and can be divided into at least 8 commercial formulations or intermediate solutions as follows: pH 5.5~6.0——Suitable for severely saline-alkali land with pH 8.0~8.5, application rate 10~15~20L / mu; pH 6.0–6.5 – Suitable for severely saline-alkali land with pH 8.0–8.5, application rate 10–15–20 L / mu; pH 6.5–7.0 – Suitable for slightly saline-alkali land or normal land with pH 7.0–7.5, application rate 10–15–20 L / mu; pH 7.0–7.5 – Suitable for slightly saline-alkali land, slightly acidified land, or normal land, application rate 10–15–20 L / mu; pH 7.5–8.0 – Suitable for slightly acidified land or normal land with pH 6.5–7.0, application rate 10–15–20 L / mu. pH 8.0~8.5——Suitable for moderately acidified soils with pH 6.0~6.5, application rate 10~15~20L / mu; pH 8.5~9.0——Suitable for moderately acidified soils with pH 5.5~6.0, application rate 10~15~20L / mu; pH 9.0~9.5——Suitable for severely acidified soil with pH 5.0~5.5, application rate 10~15~20L / mu;
[0126] The solution is neutralized to pH ≤ 7, adsorbed by activated carbon, filtered, and then packaged into a product. Alternatively, sodium / potassium alkali is added to raise the pH, and the solution is also packaged into a product in groups. The filtered sediment is sent to module D to be mixed with organic fertilizer, or fed back to the aforementioned "(1) sub-module C1 (dry distillation of cow manure mixed material)" step, and then "① batching...; ② compaction after mixing,...; ③ dry distillation,..." operation is performed; or it is sent to the rubber / plastics industry as a body filler.
[0127] When applying the aforementioned "8 groups of commercial formulations or intermediate solutions" in the field, they are generally diluted with water 450 to 500 times.
[0128] [Note 7: The wood vinegar described in this embodiment is a byproduct of "dry distillation of cow dung to obtain charcoal". It is an acidic liquid obtained by dry distillation of biomass (cow dung) (temperature 400-600℃) and condensation. Its core components are small molecule organic acids (acetic acid accounts for 40%-60%, followed by propionic acid, butyric acid, and phenols), and it contains a small amount of metal ions such as K, Na, Ca, and Mg.]
[0129] The pH range of the wood vinegar is 1.5–3.7, depending on the specific batch of raw materials and process used in the dry distillation. Cow dung-based wood vinegar, due to its higher organic content, has a slightly higher pH than sawdust-based vinegar (see attached image). Actual measured values are typically 2.5–3.5. Figure 11 The medium-sized glass contains wood vinegar solution (pH approximately 3.0).
[0130] The acidity of the wood vinegar is characterized by: strong but mild acidity (mainly organic acids, not strong inorganic acids). Direct application will burn crop roots and inhibit soil microorganisms. It needs to be alkalized to adjust the pH before use, i.e., increasing the K / Na / Ca / Mg ratio and decreasing the [H+] ratio. + K (potassium): Offers dual functions of "mild pH adjustment + fast-acting potassium fertilizer," suitable for soils used in cash crops; Na (sodium): Offers "efficient pH adjustment + increased solubility," suitable for crops not sensitive to sodium; Ca (calcium): Offers "long-lasting pH stabilization + improved soil structure," suitable for soils with acid-base imbalances; Mg (magnesium): "Buffers pH adjustment + supplements magnesium fertilizer," suitable for magnesium-loving crops and sensitive soils.
[0131] (3) Submodule C3 (Charcoal Products):
[0132] ① The charcoal rods, charcoal blocks, or charcoal balls obtained from submodule C1, which contain iron-containing elements and come from the clean water sludge in module B, are screened, sorted, and packaged to produce a type of charcoal product that burns without smoke in the air [and spontaneously combusts to produce ash, with the heavy metal (Pb / Cd / Cr / Hg) content in the ash meeting the requirements of GB 5085.3-2007 "Identification Standard for Hazardous Waste - Leaching Toxicity Identification"] for heating and grilling purposes;
[0133] ② For carbon rods, carbon blocks, carbon balls, and a small amount of crushed carbon flakes / powder that have not been mixed with the aforementioned water purification sludge, they can be further crushed and mixed with iron oxide, yellow mud, red clay, or any or more of the water purification sludge from Module B. The amount of the mixture is controlled within 5-10% of the mass of the crushed carbon flakes / powder, or a binder is added within 3-5% of the mass of the crushed carbon flakes / powder. The binder includes any or more of starch, CMC, and the cow dung-based heterotrophic CMC described in Example 3.
[0134] After being extruded or molded into any of the following solid charcoal shapes: auspicious heart shape, mooncake shape, zodiac animal shape, or blessing word shape, and then dried, shaped, and packaged, it becomes a charcoal product for heating or barbecuing that can be burned in the air without smoke and can spontaneously combust, producing ash with no excessive levels of toxic heavy metals.
[0135] [Explanation of corresponding figures]
[0136] 1. See Figure 8 Black and white photograph of biomass pellet fuel made from cow dung. The pellets are the "mechanically extruded rod-shaped blend" (diameter 8-30 mm) in step ① of C1 of this embodiment. The solid content before dry distillation is ≥75%, ensuring that the carbon yield after dry distillation is ≥30% and the wood vinegar yield is ≥40%.
[0137] 2. See Figure 9Black and white photograph of the char obtained after dry distillation of biomass pellet fuel made from cow dung to remove volatile organic compounds, showing a mixture of powder / crushes and broken pellets. This char material is the "char fragments / powder" from step C1 ③. When used in step C3 ② to prepare solid char, if CMC from Example 3 is added as a binder (3%–5%), the solid char formation rate can be ≥95%, and there is no CMC degradation odor during combustion.
[0138] 3. See Figure 10 Black and white photograph of wood vinegar obtained by condensing the distilled organic volatiles during the dry distillation of biomass pellet fuel made from cow dung, as shown in a glass (Note 8: This wood vinegar mixed with tar only needs to be acidified or alkalized to pH ≤ 7.0, and 1% to 2% powdered activated carbon added to the solution volume, followed by filtration, to obtain a clear liquid - wood vinegar alkalization liquid product).
[0139] Product Formulation and Quality Control: Wood vinegar and alkalization solutions are produced according to the pH ranges listed in Table 2 ("Commercial Parameter Table for Wood Vinegar and Alkalization Solutions"). Each batch of product must be accompanied by a test report, including specific gravity at 20°C, pH value, organic acid salt content, and heavy metal test results. During storage, acid and alkali resistant plastic containers (HDPE material) must be used, and the product must be stored in a cool, dark place (temperature ≤25°C). Shelf life is 12 months. For downstream application, the dosage should be calculated based on the "organic acid salt content" (e.g., for a weakly alkaline alkalization solution with a specific gravity of 1.10, spraying 10-15-20 L / mu of wood vinegar alkalization solution is sufficient to meet the aforementioned requirement of "10-15-20 L / mu of wood vinegar alkalization solution").
[0140] (Table 2) Commercial Parameters of Wood Vinegar and Alkaliized Solution
[0141] [Summary of the three properties in this embodiment]
[0142] I. Novelty: The technology does not overlap with existing technologies and the technical solution is unique.
[0143] The core of novelty is that "there is no identical technical solution in the prior art." The three sub-modules of this embodiment all break through the technical limitations of traditional dry distillation, wood vinegar treatment, and charcoal preparation. The key innovations are not covered by existing technologies.
[0144] 1. Novelty of submodule C1 (dry distillation blend)
[0145] Traditional cow dung pyrolysis processes treat cow dung alone, often resulting in low pyrolysis efficiency and a char yield of less than 20% due to the low solids content (<60%) of wet cow dung. This solution, however, uses a combination of wet cow dung, straw powder (adjusted to a solids content ≥75%), and Module B purified sludge (5-10%), which solves the problem of excessively high moisture content in the pyrolysis feedstock (increasing the char yield to ≥30%, see appendix). Figure 8 (Note) This also realizes the recycling of "module B waste (clean water sludge) to module C resources" - existing technologies (such as biomass dry distillation related patents) have never taken "cross-module clean water sludge mixed into dry distillation material" as a design concept, let alone the combination scheme of "straw adjusting solid content + clean water sludge combustion aid".
[0146] 2. Novelty of submodule C2 (wood vinegar alkalization)
[0147] Existing wood vinegar alkalization technology only aims to "neutralize acidity to neutrality (pH 6.5–7.5)," resulting in a single product formulation that cannot be adapted to different soil types (e.g., slightly saline-alkali soil with pH 7.5–8.0 requires a wood vinegar alkalization solution with pH 6.0–7.0, while severely saline-alkali soil with pH 8.0–8.5 requires a solution with pH 5.0–6.5). This innovative solution, however, covers eight precise pH formulations (pH 5.5–9.5) and reuses the alkalized sediment as "C1 dry distillation or D-module organic fertilizer," achieving full utilization of the wood vinegar components. This is a completely new design, as there is no existing technology that combines "wood vinegar formulation-based alkalization + sedimentation recycling."
[0148] 3. Novelty of Submodule C3 (Charcoal Products)
[0149] Traditional biomass charcoal production suffers from three major problems: incomplete combustion, smoke upon ignition, low char-forming rate, and excessive heavy metal content. This solution addresses these issues by adding "module B water-purified sludge (containing iron for combustion aid)" to prevent incomplete combustion in the air, which leads to coking; by dry distilling off volatile organic compounds to eliminate smoke; and by using "cow dung-based CMC from Example 3 as a binder (3-5%)" to increase the char-forming rate to ≥95%, while also controlling the ash heavy metal content to meet GB 5085.3-2007 standards. Existing technologies have never used "cow dung-based mixed auxiliary CMC" as a charcoal binder (mostly using calcium carbide paste or starch), let alone a solution that synergistically improves charcoal performance with "water-purified sludge + cow dung-based CMC".
[0150] II. Creativity: Breaking through existing technological thinking, with prominent substantive features and significant progress.
[0151] The core of creativity lies in "non-obviousness + technological progress." This embodiment 5, through "overall planning and precise adaptation," solves a long-standing pain point in existing technologies, rather than simply piecing together technologies.
[0152] 1. Break through the mindset of "single module optimization" and achieve cross-module collaboration.
[0153] Existing technologies for optimizing "cow dung dry distillation, wood vinegar treatment, and charcoal preparation" are limited to a single step (such as only improving the dry distillation temperature or only optimizing the wood vinegar filtration). However, this solution introduces "module B water purification sludge" into C1 (dry distillation) and C3 (charcoal preparation), and reuses "C2 sedimentation" in modules C1 and D, forming a "B→C→D→C" cycle. This "cross-module waste full recycling" design breaks through the existing mindset of "independent optimization of each step" and solves the core pain point of "high waste and low resource utilization" in traditional processes, which is a significant feature.
[0154] 2. Break through the limitations of "product homogeneity" and achieve precise scenario adaptation.
[0155] Existing wood vinegar products are only used for "single soil improvement," and charcoal is only used for "single heating." However, this solution, through C2 "8 pH formulations," can be adapted to mildly saline-alkali soil (pH 6.0–7.0), severely saline-alkali soil (pH 8.0–8.5), and acidic soil (pH 5.5–6.0), respectively. Through C3 "different forms of charcoal" (stick charcoal, auspiciously shaped solid charcoal), it can be adapted to scenarios such as home barbecues and holiday decoration heating. This design of "one process, multiple products, and multiple scenarios" significantly improves the added value of products and solves the problems of "poor product adaptability and narrow market scope" of traditional processes, which is a significant technological advancement.
[0156] III. Practicality: The process is reproducible, the product is applicable, and the effect is verifiable.
[0157] The core of practicality is "ability to manufacture / use + producing positive effects." Each step in Example 5 is supported by specific parameters, equipment, and effect data, making it fully feasible for implementation.
[0158] 1. The process is reproducible
[0159] This embodiment 5 provides clear quantitative parameters: C1 "solid content ≥75%, molding size 8-30mm (rod) / 10-50mm (block), dry distillation temperature 400-600℃", C2 "8 pH ranges, filtration precipitation recycling path", and C3 "binder dosage 3-5%, molding rate ≥95%" - those skilled in the art can directly reproduce the process using conventional equipment (dry distillation furnace, extrusion molding machine, filter) according to these parameters, meeting the "feasibility" requirement.
[0160] 2. The product is applicable and its effects are clear.
[0161] C2 wood vinegar formulation: suitable for different soils, such as the severely saline-alkali land in Dongying with pH 8.0-8.5. Applying any or a combination of pH 5.5-6.0, pH 6.0-6.5, pH 6.5-7.0, pH 7.0-7.5, pH 7.5-8.0 can bring the soil pH up to the normal range of 6.5-7.0 (before application, a small-scale laboratory test of the appropriate dosage for the soil in the implementation site should be conducted, and the field application should be carried out after the dosage is determined).
[0162] C3 charcoal products are "smokeless, self-igniting, and meet heavy metal standards," making them suitable for direct entry into the residential heating / barbecue market. Furthermore, the use of cow dung-based CMC adhesives reduces adhesive costs (by at least 20% to 30% compared to starch adhesives).
[0163] Recycling effect: The reuse of purified water sludge reduces solid waste emissions (each ton of cow dung-based hydrophilic diffusive fiber dry base can reduce solid waste by 15-20 kg), and the C2 precipitation reuse increases the carbon yield of dry distillation (2%-5% higher than that without precipitation reuse) - all of which produce positive effects of "environmental protection + economy" and meet the requirements of "practicality".
[0164] Conclusion: The three properties are fully met, making it a high-quality patent implementation.
[0165] This embodiment 5 demonstrates novelty through "cross-module loop design", creativity through "breaking through traditional thinking", and practicality through "quantified parameters + clear effects".
[0166] Based on the reasons summarized above, module C, which can be separated from modules A, B, and D, has already met the "three requirements" for patent establishment. Therefore, it, especially C2 / C3, can also be used as an independent technical solution to form independent implementations in other fields. Example 6. (Corresponding to claim 6, core: preparation of fast-dissolving organic fertilizer by module D)
[0167] According to the method for the green and high-value recycling of all components of cow dung as described in Example 1, the characteristic of this module D is that it disposes of the odorous liquid from the solid-liquid separation of cow dung from module A, the purified sludge from module B, and livestock and poultry manure including cow dung, and ferments and decomposes them to produce organic fertilizer; specifically, it includes the following sub-modules D1, D2, and D3:
[0168] D1: Bionic Pretreatment: Utilizing the odorous liquid obtained from the solid-liquid separation of cow manure and urine from Module A, it is added to livestock and poultry manure. Then, 5-10 kg / ton of purified sludge from Module B ("reclaimed water") is added simultaneously with the odorous liquid and livestock and poultry manure to form a slurry with the most pungent manure and sludge, containing 65%-80% moisture. This slurry is then introduced into a closed reaction tank (5-50m³). 3At a temperature of 37±2℃, add compound digestive enzymes (containing cellulase and protease, with cellulase activity ≥1500U / g and protease activity ≥800U / g, as determined by GB / T 23527-2009) at 0.8%–2.0% of the raw material mass to degrade crude fiber and eliminate odor; add purified sludge containing ferric hydroxide from module B at 5–8 kg / ton (cow manure ≥70%), or 8–10 kg / ton (chicken manure ≥70%), or >10 kg / ton (pure chicken manure); intermittently stir (60–120 r / min, stirring for 1–10 min / stopping for 1–5 min) until the odor component is ≤10% of the feed (ammonia ≤10ppm, hydrogen sulfide ≤5ppm) and small molecule substances ≥70%, taking 3–12 hours to obtain odorless enzymatic hydrolysis sludge intermediate product 1;
[0169] D2: Aerobic Fermentation: The intermediate product 1 described in submodule D1 is mixed with intermediate product 2 (pre-fermented straw to a moisture content of 30%) (pre-fermentation process: straw is crushed to 5-10mm, composted at 50℃ for 3 days, turned twice during the process), and then mixed with livestock and poultry manure with a moisture content ≤50% to a total moisture content of 55%-60%. This mixture is then introduced into the fermentation tank, and 1%-2% of the total moisture content of the livestock and poultry manure mixture (containing Bacillus subtilis (≥5×10⁻⁶)) of compound fermentation bacteria is sprayed. 8 CFU / g), Saccharomyces cerevisiae (≥3×10) 8 CFU / g), total viable count ≥1×10⁻⁶ 9 After repeated turning and water spraying in the fermentation tank (CFU / g), and more than 25 days of aerobic fermentation in the tank, an odorless organic fertilizer intermediate product 3 that meets NY / T525-2021 is obtained.
[0170] D3: Granulation or compounding of intermediate product 3 followed by granulation: "compounding" refers to adding conventional N / P / K fertilizers, probiotic preparations, or 3-5 parts by weight of cow manure-based auxiliary CMC from module A2 / based on 100 parts by weight of the material to be granulated. The temperature of the granulated material is strictly controlled below 60°C, and the moisture content of the material entering the granulator is controlled within the range of 25-35%.
[0171] An intermediate product 4 is prepared from any of the following products: quick-dissolving granular organic fertilizer, quick-dissolving granular organic-inorganic compound fertilizer, quick-dissolving granular bio-organic fertilizer, and quick-dissolving granular bio-organic fertilizer. The intermediate product 4 is then hardened by air blowing and introduced into a sieve with an aperture of 3–7 mm. After passing through the sieve, the intermediate product 4 yields any of the following products: quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021), quick-dissolving granular organic-inorganic compound fertilizer (corresponding to GB / T18877-2020), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days, corresponding to the Ministry of Agriculture and Rural Affairs standard NY884-2012), and quick-dissolving granular bio-organic fertilizer (live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days, corresponding to the Ministry of Agriculture and Rural Affairs standard NY884-2012).
[0172] [Explanation of corresponding figures]
[0173] 1. See Figure 12 This is a black and white photograph of the quick-dissolving granulated organic fertilizer granules produced when the granulation temperature is strictly controlled below 60℃ and the moisture content of the material entering the granulator is controlled within the range of 25-35%. The granules have a diameter of 2-3mm and a smooth surface without cracks, proving the rationality of the granulation parameters (temperature <60℃, moisture content 25-35%) – avoiding high temperature damage to amino acids and vitamins in the organic fertilizer, and ensuring that the granules are not easily broken after molding (compressive strength ≥15N / granule);
[0174] 2. See Figure 13 This is to Figure 12 A black and white photograph (initial state) of a granule of the "instant soluble granular organic fertilizer" and water to be added to a plastic cup lid;
[0175] 3. See Figure 14 This is to Figure 12 A black and white photograph of one granule of the "fast-dissolving granular organic fertilizer" taken 15 minutes after being placed in water in a plastic cup lid. It can be clearly seen that the nutrients in the granular fertilizer dissolved in water and showed obvious brown marks (dissolution rate of about 40% to 50%).
[0176] 4. See Figure 15 This is to Figure 12 A black and white photograph of one granule of the "fast-dissolving granular organic fertilizer" taken 30 minutes after being placed in water in a plastic cup lid (the original repeated description has been supplemented and corrected, and the time gradient has been refined). The brown marks have deepened (dissolution rate ≥80%), which meets the definition of "fast-dissolving" (dissolution rate ≥85% in water at 20℃ for 30 minutes).
[0177] 5. See Figure 16 This is to Figure 12A black and white photograph of one granule of the "fast-dissolving granular organic fertilizer" after being added to water in a plastic cup lid one hour later shows that the granules are more numerous and finer fragmented (dissolution rate ≥95%), and the brown color is darker than that of the other granules. Figure 15 .
[0178] [Supplementing Different Land Use Methods]
[0179] For saline-alkali land: Select fast-dissolving granular organic fertilizer (corresponding to NY / T525-2021) (N+P2O5+K2O≥5%), mix it with sodium wood vinegar carrying calcium sulfate dihydrate (pH 7.0-8.0) from module C2 and CMC from module A2 to prepare slurry (solid content 40-50 kg per cubic meter). Spray 2-3 cubic meters per acre, and drip irrigate twice within 7 days after spraying (50 m³ each time). 3 / mu), within 60 days, the soil salinity decreased by 1.1-1.2g / kg, and the corn emergence rate increased to 85-90%;
[0180] For acidified soil: Use fast-dissolving granular bio-organic fertilizer (live bacteria count ≥100 million CFU / g, survival period ≥30 days, corresponding to the Ministry of Agriculture and Rural Affairs standard NY884-2012) (live bacteria count ≥100 million CFU / g, survival period ≥30 days), avoid using it with fungicides, apply 50-80 kg per mu in furrows, and within 30 days the soil aggregate (>0.25mm) content will increase by ≥15%, suitable for planting rapeseed and tea;
[0181] For normal fields: Use fast-dissolving organic-inorganic compound fertilizer (N+P2O5+K2O≥15%), spray 10-15 kg per mu (diluted with 100 times water) as topdressing during the wheat jointing stage, which can increase the thousand-grain weight of wheat by 5%-7%.
[0182] Desert areas: Mix quick-dissolving organic fertilizer and CMC from module A2 at a mass ratio of 1:1 to prepare a gel with a mass-volume concentration of 5% (i.e., 5 kg of quick-dissolving organic fertilizer + 5 kg of CMC per 100 L of gel). Spray 15-20 m³ per acre. 3 The gel forms a water-retaining layer on the desert surface, while the organic fertilizer slowly releases nutrients, making it suitable for planting sea buckthorn and saxaul.
[0183] I. Novelty: There is no identical solution in the existing technology; the core design is unique.
[0184] The core of novelty is that "there is no completely identical technical solution in the prior art of the relevant technical field." Example 6, through "cross-module collaboration + full-chain innovation," forms three key differentiators not covered by existing technologies:
[0185] 1. The novel combination design of D1 "bionic pretreatment"
[0186] Existing technologies for treating fecal odor often employ either "single enzymatic hydrolysis (using only cellulase / protease, without clear enzyme activity standards)" or "single adsorption (such as activated carbon or zeolite, without cross-module resource reuse)," and cannot simultaneously achieve "odor removal + crude fiber degradation." This innovative solution combines "compound digestive enzymes with clearly defined enzyme activity (cellulase ≥1500U / g, protease ≥800U / g) + Fe(OH)3-containing water purification sludge from module B," designing a sludge dosage gradient (5-8 kg / ton →> 10 kg / ton) based on fecal type (cow manure / chicken manure / pure chicken manure). This achieves both "odor components ≤ 10% of feed (ammonia ≤ 10 ppm, hydrogen sulfide ≤ 5 ppm)" and simultaneous degradation of crude fiber into ≥ 70% small molecule substances. Existing technologies have never used "cross-module water purification sludge combined with enzyme-specific active agents" for fecal pretreatment, nor have they featured a refined design for "sludge dosage based on fecal type."
[0187] 2. The innovative design of D3, which combines rapid dissolution granulation with cross-module compounding, is remarkable.
[0188] Existing fast-dissolving organic fertilizers mostly achieve fast dissolution through "pulverization and fine processing + addition of chemical co-solvents (such as urea, ammonium sulfate)," and the granulation process lacks clear temperature / moisture content control (which easily leads to nutrient destruction or brittle granules); while this solution:
[0189] When compounding, “3-5 parts by weight of cow dung-based heterologous CMC from module A2” is introduced to improve the dissolution rate by utilizing the hydrophilic properties of CMC, while avoiding the problem of residual chemical co-solvents.
[0190] Strictly controlling the granulation temperature to ≤60℃ (to protect amino acids, vitamins, probiotics, etc.) and moisture content to 25-35% (to ensure compressive strength ≥15N / granule) ultimately achieves granular fertilizer with a water solubility of ≥80% in 30 minutes and ≥95% in 1 hour (see appendix). Figure 14-16 (Empirical evidence) - Existing technologies do not have a quick-dissolving organic fertilizer solution of "cow manure-based CMC compounding + precise temperature-controlled granulation", nor do they have a design of "using cross-module waste (CMC) for organic fertilizer functional enhancement".
[0191] 3. The novel combination of "module linkage + scenario-based application"
[0192] Current organic fertilizer applications are mostly "universal" (the same product used for different soil types), resulting in poor effectiveness; however, this solution links the organic fertilizer from module D with products from other modules:
[0193] Saline-alkali land: Organic fertilizer + Module C2 wood vinegar (pH 7.0-8.0 + Module A2 CMC, to achieve "salt reduction (1.1-1.2g / kg) + water retention + seedling promotion (85-90%)";
[0194] Desert areas: Organic fertilizer and CMC are mixed at a ratio of 1:1 to form a 5% mass-volume concentration gel to form a water-retaining layer. Existing technologies do not have an application scheme that "synergistically adapts multiple modules of products to different soils", which is a completely new application combination.
[0195] II. Creativity: Breaking through existing technological thinking, with prominent substantive features and significant progress.
[0196] The core of creativity is that "the solution is not obvious and has outstanding substantive features and significant progress compared to existing technologies." This embodiment 6 breaks the conventional mindset of traditional organic fertilizer preparation through two key breakthroughs:
[0197] 1. Break through the mindset of "optimizing a single link" and achieve a closed-loop chain of "pretreatment-fermentation-granulation-application".
[0198] Existing technologies for optimizing organic fertilizers are mostly limited to a single step (such as improving only the fermentation agent or optimizing only the granulation equipment); however, this solution:
[0199] Pretreatment (D1) uses the odorous liquid from module A and the clean water sludge from module B to achieve "waste disposal";
[0200] Granulation (D3) uses the CMC of module A2 to achieve "cross-module resource reuse";
[0201] The application of wood vinegar from module C2 and CMC from module A2 (supplementary part) achieves "product synergistic effect"; forming a full-chain cycle of "module A / B→D→module A2 / C2→D application", which solves the core pain points of traditional processes such as "fragmented links, waste of resources, and single effect", which is a prominent and substantial feature.
[0202] 2. Overcoming the "contradiction between rapid dissolution and long-lasting effectiveness," achieving the dual functions of "rapid dissolution + long-lasting effect." The pain point of existing rapid-dissolving organic fertilizers is that "rapid dissolution easily leads to rapid nutrient loss, while long-lasting effect requires sacrificing rapid dissolution." This solution cleverly solves this problem through "CMC compounding."
[0203] CMC not only improves the granulation properties of organic fertilizer, but also forms a gel film in the soil to slowly release nutrients (avoiding loss). After being sprayed on the field, the soil can be tilled after the surface dries, and its adhesive properties can be used to greatly improve the soil's aggregate structure. This solves the technical problem that traditional quick-dissolving organic fertilizers are "quick-acting but not long-lasting" and do not significantly improve the soil's aggregate structure, which is a significant technological advancement.
[0204] III. Practicality: The process is reproducible, the effects are verifiable, and it can generate positive benefits.
[0205] The core of practicality is that "those skilled in the art can implement the solution, manufacture / use it, and achieve positive results." Each step in this embodiment 6 meets this requirement:
[0206] 1. Process is reproducible: precise parameters, conventional equipment.
[0207] This embodiment 6 provides full-process quantitative parameters without any ambiguity:
[0208] D1: Enzyme dosage 0.8%-2.0% (fixed enzyme activity), sludge dosage 5-10 kg / ton, temperature 37±2℃, stirring 60-120 r / min (1-10 min / stop 1-5 min), time 3-12 hours;
[0209] D2: Crush straw to 5-10mm, ferment at 50℃ for 3 days (turning and tossing twice), use 1%-2% of microbial agent (to determine the number of live bacteria), and ferment for 25 days;
[0210] D3: CMC 3-5 parts by weight, temperature ≤60℃, moisture content 25-35%, strip particle size 2-4mm (diameter) × 2-7mm (strip length); the equipment used (closed reaction tank, fermentation tank, granulator) are all conventional equipment in the organic fertilizer industry, and technicians can directly reproduce the process according to the parameters.
[0211] 2. Verifiable results: Empirical evidence from both data and attached figures.
[0212] Process results: D1 deodorization rate ≥90%, small molecule substances ≥70%; D3 particle compressive strength ≥15N / particle, 30min solubility ≥80% (see attached) Figure 14-16 (Visually demonstrate the dissolution process);
[0213] Application effects: Organic fertilizer + Module C2 wood vinegar (pH 7.0-8.0 + Module A2 CMC) achieves "significantly increased soil aggregate rate, reduced salinity (1.1-1.2 g / kg) + water retention + promoted seedling emergence (85-90%)"; increased soil aggregate (>0.25 mm) by ≥15% in acidified soil; increased wheat thousand-grain weight by 5%-7% - all effects are quantified and can be verified through laboratory testing or field trials.
[0214] 3. Positive benefits: Environmental protection and economic benefits
[0215] Environmental benefits: It can dispose of the odorous liquid from module A and the clean water sludge from module B, reducing solid waste emissions (8-12 kg of solid waste is reduced per ton of manure); there are no chemical co-solvent residues, which meets the requirements of green agriculture.
[0216] Economic benefits: Replacing purchased co-solvents (such as activated carbon and chemical enzymes) with cross-module waste (CMC, water purification sludge) reduces the production cost of organic fertilizer by 15% to 20%; the added value of scenario-specific products (specific to saline-alkali land and desert land) is 25% to 30% higher than that of general organic fertilizer.
[0217] Conclusion: All three properties are fully established. This embodiment 6 demonstrates novelty through "cross-module collaborative innovation", creativity through "overcoming technical pain points", and practicality through "parameter quantification + effect verification". Therefore, it can also be used as an independent technical solution, that is, it can form an independent embodiment without being dependent on modules A and B. Example 7. (Corresponding to claim 7, core: material transfer and compatibility)
[0218] The method for the green and high-value recycling of all components of cow dung according to any one of Examples 1 to 6 is characterized in that, through the combination of modules A, B, or C / D, the material collaborative transport and compatibility control meet the following requirements:
[0219] (1) Material transfer connection: The reclaimed water (containing ≤0.3% dissolved salt) generated by submodule A1 needs to be transported to module B, and the purified sludge (containing ≤40% solids) generated by module B needs to be distributed to module C or D; the wood vinegar generated by submodule C1 needs to undergo the C2 alkalization process to obtain a wood vinegar alkalization solution with a soluble purity ≥95% (i.e., insoluble precipitate <5%) (because it needs to be diluted with water 450 to 500 times during use - it will not clog the micro-permeation tube wall); in addition, the "most concentrated reclaimed water purification sludge" generated by submodule A1 (mentioned in the process of Example 3A2) needs to be transported to submodule A2 as a hydrophobic barrier agent. The amount added must match the requirements of process A2 (1% to 10% of the mass of A2 powder); the cow dung-based auxiliary CMC produced by submodule A2 (mentioned in process D3 of Example 6) needs to be transferred to submodule D3 as a granulation binder, and the amount added must follow the parameters of D3 (3 to 5 parts by mass / 100 parts by mass of granulated material); the precipitated sludge produced by alkalization in submodule C2 (mentioned in process C2 of Example 5) needs to be transferred to submodule C1 or module D. When transferring to C1, the amount added must be controlled (5% to 10% of the total mass of dry cow dung + straw powder) to ensure that the charcoal obtained by dry distillation in C1 can spontaneously combust in air and turn into ash;
[0220] (2) Compatibility control: During fermentation in module D, the amount of sludge added from module B should not exceed 8% of the mass of the livestock and poultry manure mixture (excessive addition will lead to fermentation pH > 9.0, inhibiting microbial activity); when preparing charcoal in submodule C3, if cow manure-based mixed auxiliary CMC from submodule A2 is added as a binder, its addition amount should be controlled at 3% to 5% of the mass of charcoal chips / powder (too little will result in a molding rate < 80%, too much will produce soot during combustion); in addition, the reclaimed water from module B (mentioned in the process of Example 4) is reused for hot leaching in submodule A1. When regenerating water, the dissolved salt content must be controlled to ≤0.3% (excessive content will lead to excessive dissolved salt content in the reclaimed water after hot leaching in A1, thus preventing the reclaimed water from entering module B for treatment). This control involves two aspects: firstly, the upstream water source must have a dissolved salt content of ≤0.3%; secondly, the additives used in the hot leaching process must not contain soluble salts. When the alkalized wood vinegar solution from submodule C2 (mentioned in the C2 process of Example 5) is transferred to module D for compounding, the pH of the wood vinegar solution formulation must be matched with the pH of the organic fertilizer in module D (e.g., if the pH of the organic fertilizer in module D is 6.5–7.0, the C2 pH 7.0–7.5 formulation should be selected; exceeding this range will lead to a mismatch between the organic fertilizer and the soil pH). When the crude CMC-Na produced by submodule A2 (mentioned in the process of Example 3) is transferred to module D for compounding, the amount of CMC added must be controlled to ≤5 parts by mass (excessive content will lead to excessive gelation of the organic fertilizer, increasing costs).
[0221] (3) Quality traceability: When materials are transferred between modules, the "source module - transfer time - key parameters" must be recorded (e.g., the carboxyl content of CMC in submodule A2 is ≥7%, and the calorific value of charcoal in module C is ≥3500kcal / kg) to form a traceable ledger, ensuring that the end products (e.g., organic fertilizer and charcoal) meet the corresponding industry standards (NY / T525-2021 "Organic Fertilizer Standard" and GB / T30727-2014 "Barbecue Charcoal"); in addition, the sieve mesh size (7-28 mesh, process requirements of Example 2) and the sinking rate (≥95%, Example 2) of hydrophilic decomposable fibers in submodule A1 must be recorded. Figure 3 Verification indicators); Submodule A2 cow dung-based heterotrophic CMC degree of substitution (≥0.6, the core indicator derived from the etherification molar ratio of 1:1 to 1.5 in Example 3), anti-caking dissolution rate (no clumping at 1‰ concentration, Example 3) Figure 11 Verification indicators); pH of wood vinegar alkalization product in submodule C2 (5.5-9.5, process requirements of Example 5), purity of wood vinegar alkalization liquid (≥90%, C2 indicator of Example 5); N+P2O5+K2O content of quick-dissolving organic fertilizer in module D (≥5% or ≥15%, application requirements of Example 6), number of live probiotics (≥100 million CFU / g, survival period ≥30 days, D3 indicator of Example 6), ensuring that the traceability ledger covers all core quality control points of the module and is fully matched with the product standards of Examples 1-6.
[0222] [Attached Image Correspondence]
[0223] The material transfer logic in this embodiment can be combined with Figure 1 A closed-loop architecture (such as the flow direction A1→B→C / D). Figure 5 The water purification sludge (material form of module B→C / D), Figure 10 Understanding wood vinegar (material forms C1→C2): For example, module B water purification sludge ( Figure 5 When assigning to module D, the amount added must be controlled to be ≤8%, which can be achieved through... Figure 12 Compatibility verification of the solubility performance of instant organic fertilizer granules: If the addition amount exceeds the standard, the solubility rate of the organic fertilizer granules will drop below 60% within 30 minutes, failing to meet the instant solubility requirement; when distributing to module C3, the addition amount needs to be controlled at 5-10%, which can be achieved through... Figure 9 Verification of charcoal combustion performance: When the addition amount is appropriate, the calorific value of charcoal is ≥3500kcal / kg, and the complete combustion rate of charcoal is ≥90% (smokeless and burnt out). Example 8. (Corresponding to claim 8, core: product performance and application)
[0224] According to any one of Examples 1 to 7, the method for the green and high-value recycling of all components of cow manure is characterized in that the core performance indicators and operational requirements of the terminal products of modules A, C, and D in specific application scenarios are as follows:
[0225] (1) Sub-module A2 cow dung-based mixed auxiliary CMC powder products:
[0226] When used as a dust suppressant in deserts / dust-prone areas, add 4–16 kg of powder to water to prepare a 1,000 m³ solution. 3 The gel is sprayed at a rate of 10-17m per acre. 3 Within 4 hours of spraying, a hardened, water-retaining gel shell forms on the ground surface, with a dust reduction efficiency of ≥60%. Under moderate rain conditions (rainfall ≤15mm / 24h), the gel shell will absorb water and soften, but the gel shell retention rate is ≥70% (see...). Figure 11 The non-clumping properties ensure gel uniformity; when used as a binder for organic fertilizer microcapsules in acidic soil conditioners, the addition amount is 5% to 8% of the total mass of the conditioner and organic fertilizer microcapsules, which can increase the particle formation rate of the conditioner-carrying organic fertilizer microgel to ≥92%. After application in pH 4.5 red soil, the soil aggregate (>0.25mm) content increases by ≥15% after 30 days.
[0227] Before actually carrying out soil improvement on acidic or saline-alkali land, it is necessary to first determine the basic soil condition (such as pH, salinity, organic matter, etc.) through simple testing to avoid ineffective treatment or secondary soil problems caused by blind application. The following are the core testing indicators and matching suggestions before soil improvement (Table 3), which can serve as a preliminary basis for the application of CMC powder in combination with other module products (such as wood vinegar alkalization solution, quick-dissolving organic fertilizer):
[0228] Saline-alkali land treatment process
[0229] 1. Granulation pretreatment (preparing for desalination): First, prepare a cow dung-based mixed-auxiliary CMC gel with a concentration of 1‰ and no clumping (ensure that the CMC contains module B water-purifying sludge and that the Fe(OH)3 content is ≥15%), and spray it evenly over the soil at a rate of 2-3 cubic meters per acre. After the sprayed CMC gel forms a hardened crust on the surface (about 4 hours), till the soil to make the saline-alkali soil granular and loose. Then, gather the granulated soil into ridges 40-50cm high, lay micro-permeable pipes along the length of the top of the ridges, and finally cover the ridges and micro-permeable pipes with geotextile or plastic film to prevent water evaporation caused by sunlight, which would negate the salt washing effect, and to avoid rainstorms from damaging the soil granular structure and affecting salt infiltration.
[0230] 2. Freshwater infiltration desalination: Freshwater with dissolved salt content <0.3% is slowly delivered to the soil through micro-infiltration pipes. The total irrigation volume is adjusted according to the degree of soil salinization (60-80 cubic meters per mu for mild salinization, and 80-120 cubic meters per mu for moderate / severe salinization). During this period, the soil EC value can be monitored with a portable conductivity meter. Irrigation is suspended when the EC value drops below 2.2 dS / m (corresponding to total salt content <0.1%, which meets the standard for non-saline soil).
[0231] 3. Sowing of salt-tolerant varieties: Select salt-tolerant crop varieties suitable for improved saline-alkali soil (such as corn, sunflower, and Suaeda salsa, referencing the empirical evidence in the original plan that corn germination rate increased to 85-90%), and carry out sowing after the soil surface aggregate structure has stabilized, to avoid damaging the aggregate layer formed in the early stage during sowing.
[0232] 4. Synergistic Fertilization and Maintenance: After sowing, apply a mixture of "Module D quick-dissolving organic fertilizer + Sub-module C2 pH 5.5-6.0 wood vinegar alkalization solution" as a slurry (slurry content 40-50 kg / m³), spraying at a rate of 2-3 m³ per acre. The wood vinegar alkalization solution needs to be diluted with water 450-500 times in advance to help adjust the soil pH to the suitable range of 6.5-7.7, and to synergistically release nutrients with the quick-dissolving organic fertilizer and CMC. At the same time, the water-retaining properties of CMC reduce fertilizer loss and increase iron absorption by crop roots (e.g., corn root length can be increased by 20%-30%).
[0233] (2) Submodule C3 Charcoal Products: Heating charcoal with a calorific value ≥3500kcal / kg, a combustion time ≥3 hours / kg, and no visible smoke during combustion (see...) Figure 9The charcoal is in its natural form and free of impurities; the charcoal for barbecue can be ignited in air or activated at (800-900℃), with an ash content ≤18%, and the product conforms to GB / T standards. Standard 30727-2014 "Charcoal for Barbecue"; Charcoal mixed with Module B purified water sludge (containing Fe(OH)3, mentioned in Example 4) must meet the 'self-ignition characteristics' (it can slowly burn out in air without additional combustion aid, mentioned in Example 5), and during combustion, iron acts as an oxidation catalyst, enabling the charcoal to achieve a complete combustion rate of ≥90% (smokeless and burns out to ash); and the heavy metal (Pb / Cd / Cr / Hg) content in the ash must comply with GB5085.3-2007 "Identification Standard for Hazardous Waste - Leaching Toxicity Identification" (mentioned in Example 5) to avoid the accumulation of heavy metals in the soil after application; solid charcoal without purified water sludge must ensure that the amount of CMC binder (mentioned in Example 3) added is 3% to 5%, and that the carbonized products obtained after dry distillation, including CMC, have no degradation odor ( Figure 9 verify);
[0234] (3) Module D Organic Fertilizer Products: The solubility of quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) in water at 20℃ is ≥80% / 30min (see Figure 15 The 30-minute dissolution state) is suitable for drip irrigation systems (filter pore size ≥ 1.2 mm); the quick-dissolving granular bio-organic fertilizer (live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days, corresponding to the Ministry of Agriculture standard NY884-2012) has a live bacteria count ≥ 100 million CFU / g and a survival period ≥ 30 days, and should be avoided when applying it with fungicides; when used in saline-alkali land, the quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) must meet the requirement of N+P2O5+K2O ≥ 5% (mentioned in Example 6), and be compatible with A2's CMC and C2's wood After compounding with acetic acid alkali solution, it is necessary to help improve the corn emergence rate to 85-90%; when used in acidified land, the probiotic quick-dissolving organic fertilizer must ensure that the soil aggregate (>0.25mm) content increases by ≥15% within 30 days after application (mentioned in Example 6), and the survival period of live bacteria in the soil is ≥30 days (the core reason for avoiding use with fungicides); when used in desert land, it should be mixed with A2 CMC at a ratio of 1:1 to form a 5% mass-volume concentration gel (mentioned in Example 6), and the gel water retention rate must be ≥80% / 24h to ensure that the survival rate of sea buckthorn and saxaul increases by ≥60%.
[0235] [The attached image corresponds to the enhancement]
[0236] Submodule A2 CMC performance: Figure 11 The most extreme low concentration, "1‰ concentration without clumping", directly supports "gel uniformity". If CMC clumps, the gel will have localized excessively high concentrations, making the mixing process difficult to carry out in extremely simple environments in many places.
[0237] Module D Organic Fertilizer Performance: Figures 14-16 The dissolution time gradient (15min→30min→1h) directly proves that "the dissolution rate is ≥80% in 30min", which meets the requirements of drip irrigation feed preparation - the dissolution should be fast, the residue should not be sticky and should be easy to separate and not easily clog the drip irrigation nozzles and micro-permeation pipe walls, reducing or eliminating the labor of frequent cleaning and management.
[0238] In addition, the core performance of each product needs to be linked to the traceability parameters of the preceding modules: the "non-agglomerated dissolution" of submodule A2 CMC needs to be traced back to the doping of A2 (mentioned in Example 3) and the drying temperature (60-90℃, mentioned in Example 3); the "calorific value ≥3500kcal / kg" of submodule C3 charcoal needs to be traced back to the dry distillation temperature (400-600℃, mentioned in Example 5) and the amount of purified water sludge added (5%-10%, mentioned in Example 5); the "30min solubility ≥80%" of module D organic fertilizer needs to be traced back to the granulation temperature of D3 (≤60℃, mentioned in Example 6) or the amount of CMC added (3-5 parts by mass, mentioned in Example 6), to ensure that if the performance does not meet the standard, it can be traced back to the upstream module parameters, which meets the quality traceability requirements of Example 7. Example 9. (Corresponding to claim 9, core: independent implementation of module B, sub-modules C2 / C3, and D)
[0239] According to the method for the green and high-value recycling of all components of cow manure as described in any of Examples 1 to 8, regarding the claim 9 that "module B, sub-module C2, sub-module C3, and module D can be implemented as independent claims when they do not involve cow manure limitations or mutual limitations," this embodiment verifies the independent implementation feasibility of each module / sub-module through specific processes, quantitative parameters, and application effects, as follows:
[0240] I. Independent Implementation of Module B (Biochemical Regeneration of "Grey Water")
[0241] When Module B is separated from "cow dung-related modules (such as A1)" and "other modules (C / D)", its core function is "to treat low-pollution wastewater with dissolved salt content ≤0.3% (such as livestock and poultry breeding cleaning wastewater and lightly polluted food processing wastewater), and produce reclaimed water and purified sludge containing ferric hydroxide". The independent implementation process and performance indicators are as follows:
[0242] 1. Raw materials and process: Livestock and poultry breeding cleaning wastewater with dissolved salt ≤0.3% (excluding cow manure source) is selected, and "polyferric sulfate sedimentation (dosage 0.1~0.3g / L) or activated sludge biochemical treatment (sludge concentration 3000~4000mg / L, hydraulic retention time 8~12h)" is adopted. There is no need to connect to the reclaimed water of module A1, and the wastewater purification is completed directly (refer to paragraph
[0114] process logic of Example 4, which is the core process description of module B).
[0243] 2. Product performance: Reclaimed water must meet the following requirements: dissolved salt ≤ 0.3%, COD ≤ 100 mg / L, pH 6.5–7.5. It can be used independently for agricultural irrigation (such as drip irrigation in vegetable greenhouses, with a water consumption of 50–80 m³ per acre). 3 Or industrial cooling water; the purified sludge must meet the following requirements: "solid content ≤ 40%, Fe(OH)3 content ≥ 15%, heavy metals (Pb / Cd / Cr / Hg) ≤ GB 5085.3-2007", and can be used independently as paper filler (replacing 50% to 100% calcium carbonate for corrugated paper production) (refer to paragraph
[0116] of Example 4 for independent implementation conclusion, which clarifies the independent implementation value of module B).
[0244] 3. Independent Implementation and Validation: This process does not rely on cow dung-related materials and can be reproduced using only conventional water purification equipment (sedimentation tank, biochemical reaction tank, filter press). The performance indicators of reclaimed water and purified sludge have been verified in accordance with the "Standards for Irrigation Water Quality" (GB 5084-2021) and "Determination of Filler Content in Paper and Paperboard" (GB / T 2678.6-2017), meeting the requirements for independent product application.
[0245] II. Independent Implementation of Submodule C2 (Wood Vinegar Alkalization)
[0246] When submodule C2 is separated from "cow dung-related modules (such as cow dung dry distillation feed in C1)" and "other modules (A / B / D)", its core function is "to perform fractional alkalization on wood vinegar from any biomass source to produce wood vinegar alkalization solutions suitable for different soils". The independent implementation process and performance indicators are as follows:
[0247] 1. Raw Materials and Process: Straw-based dry distillation wood vinegar (replacing cow dung-based dry distillation wood vinegar, pH 2.5–3.5, total organic acid content ≥40%) is selected. The process employs "mixed alkali neutralization (alkali powder is sodium carbonate + dolomite tailings powder, mass ratio 1:2)," etc., and is divided into multiple pH formulations according to market demand, such as: pH 5.5–6.0 (suitable for severely saline-alkali land), pH 6.0–6.5 (suitable for severely saline-alkali land), pH 6.5–7.0 (suitable for slightly saline-alkali land / normal fields), pH 7.0–7.5 (suitable for slightly saline-alkali land / normal fields). Acidified soil), pH 7.5-8.0 (suitable for mildly acidified soil), pH 8.0-8.5 (suitable for moderately acidified soil), pH 8.5-9.0 (suitable for moderately acidified soil), pH 9.0-9.5 (suitable for severely acidified soil), neutralized to ≤7 and then adsorbed by activated carbon (addition amount 1‰-2%) and filtered (pore size ≤0.45μm). The filter residue does not require feedback module C1 or D (refer to paragraphs
[0125] -
[0126] of the process logic in Example 5, these two paragraphs are the core process of alkalization and dosage form of C2 submodule);
[0248] 2. Product performance: Each dosage form must meet the requirement of "specific gravity of 1.05~1.15g / cm³ at 20℃". 3 "Organic acid salt content ≥35%, pH fluctuation ≤±0.2 (stored at 25℃ for 3 months)", among which, when the pH5.5~6.0 formulation is used in Dongying's severely saline-alkali land, spray 15~20L per mu (diluted 450~500 times), and the soil pH will drop from 8.5 to 7.0~7.5 within 60 days, and the salt content will decrease by 1.1~1.2g / kg (refer to paragraph
[0232] of Example 8 for application effect, which is the specific application data of wood vinegar alkalization liquid in saline-alkali land in submodule C2);
[0249] 3. Independent Implementation and Validation: This process does not rely on cow manure dry distillation material. It can be adapted to biomass wood vinegar such as straw and sawdust. The product has passed the test of "Agricultural Wood Vinegar" (T / CNFPIA 3024-2022). When used independently for soil improvement, the effect can be quantified and meets the requirements of independent technical solutions.
[0250] III. Independent Implementation of Submodule C3 (Preparation of Charcoal Products)
[0251] When submodule C3 is separated from "cow dung-related modules (such as cow dung blends in C1)" and "other modules (A2 / B)", its core function is "to shape and modify any biomass char to produce smokeless, self-igniting char". The independent implementation process and performance indicators are as follows:
[0252] 1. Raw materials and process: Select straw charcoal (to replace cow dung-based charcoal, ash content ≤15%), crush and mix it with iron oxide (combustion aid, 5% to 8%, to replace the clean water sludge in module B), and then add starch binder (3% to 5%, to replace the cow dung-based CMC in A2). Extrude and press it into rod-shaped charcoal with a diameter of 10 to 20 mm, and dry and shape it at 60 to 80°C. There is no need to connect to the dry distillation process of module C1 (refer to the process logic of paragraphs
[0132] to
[0134] in Example 5, which are the core processes of charcoal forming and modification in sub-module C3).
[0253] 2. Product performance: The charcoal must meet the following requirements: "calorific value ≥3500kcal / kg, burning time ≥3 hours / kg, ash content ≤18%, and smokeless combustion". The charcoal for barbecue must pass the test of GB / T30727-2014 "Charcoal for Barbecue". The heavy metals (Pb / Cd / Cr / Hg) in the ash must be ≤GB5085.3-2007. It can spontaneously combust and turn into ash after being ignited in air. The complete combustion rate is ≥90% (refer to the performance indicators in paragraph
[0233] of Example 8, which is the core performance requirement of the charcoal product of submodule C3).
[0254] 3. Independent Implementation and Validation: This process does not rely on cow dung-based charcoal or cross-module additives. Straw charcoal, bamboo charcoal, etc. can all be used as raw materials. It can be produced using conventional charcoal forming equipment (crusher, extruder, dryer). The product has been tested by a third party and meets the needs of the civilian heating / barbecue market, and has independent industrialization value.
[0255] IV. Independent Implementation of Module D (Co-fermentation of Manure and Waste to Produce Organic Fertilizer)
[0256] When module D is separated from "cow manure-related modules (such as the odorous liquid of A)" and "other modules (B / C2)", its core function is "to ferment and granulate livestock and poultry manure from non-cow manure sources to produce fast-dissolving / probiotic organic fertilizer". The independent implementation process and performance indicators are as follows:
[0257] 1. Raw materials and process: Pig manure (replacing cow manure, with a moisture content of 60% to 70%) is selected, and it is pretreated by biomimetic process (adding compound digestive enzymes, with an addition amount of 1.0% to 1.5%, enzyme activity: cellulase ≥1500U / g, protease ≥800U / g, temperature control at 37±2℃, stirring at 120r / min, and time of 6 to 8 hours), and then mixed with pre-fermented straw (with a moisture content of 30%) until the total moisture content is 55% to 60%, and compound fermentation bacteria (1% to 2%, with a viable count of ≥1×109CFU / g) are sprayed. The aerobic fermentation is carried out for no more than 25 days, and finally granulation is carried out at ≤60℃ (with an inlet moisture content of 25% to 35%). There is no need to connect the clean water sludge of module B and the wood vinegar alkalization liquid of C2 (refer to paragraphs
[0168] to
[0171] of the process logic in Example 6, which are the core processes of biomimetic pretreatment and granulation of module D).
[0258] 2. Product Performance: Quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) must meet the following requirements: "Solubility in water at 20℃ for 30 minutes ≥ 80%, N+P2O5+K2O ≥ 5%, compressive strength ≥ 15N / granule"; probiotic organic fertilizer must meet the following requirements: "Live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days". Both meet the NY / T525-2021 "Organic Fertilizer" standard. When used as topdressing for wheat during the jointing stage (12-15 kg per mu, diluted 100 times with water), it can increase the thousand-grain weight of wheat by 5%-7% (refer to paragraph
[0234] of Example 8 for application effect data of organic fertilizer products in module D).
[0259] 3. Independent Implementation and Validation: This process does not rely on cow manure or cross-module materials. Pig manure, chicken manure, etc. can all be used as raw materials. It can be reproduced using conventional organic fertilizer production equipment (closed reaction tank, fermentation tank, granulator). The fertility effect of the product has been verified by field trials and can be independently entered into the agricultural drip irrigation / topdressing market. V. Summary of the Three Characteristics of Independent Implementation
[0260] 1. Novelty: The independent processes of each module / sub-module break through the limitations of tradition (such as "multi-scenario reuse of water purification sludge" in module B, "alkalinization of wood vinegar in separate dosage forms" in C2, "iron oxide combustion-assisted molding" in C3, and "rapid dissolving granulation of non-cow dung" in D), and there are no similar solutions in the existing technology.
[0261] 2. Creativity: By "breaking free from cow dung limitations + replacing cross-module additives", the pain points of traditional processes such as "raw material dependence and module binding" are solved (e.g., C3 uses iron oxide to replace water purification sludge, and D uses pig manure to replace cow dung). The technical solution is not obvious.
[0262] 3. Practicality: Each independent implementation item has clear process parameters, performance indicators and application scenarios. Personnel in the relevant technical field can reproduce it with conventional equipment, and the product can be tested according to industry standards, thus possessing practical application value.
[0263] In summary, Module B, Submodule C2, Submodule C3, and Module D all satisfy the implementation conditions of the independent claim when there is no limitation on cow dung or mutual limitation. Example 10. (Corresponding to claim 10, core: independent product definition)
[0264] According to any one of the methods for the green and high-value recycling of cow manure in any of Examples 1 to 8, the following products involved can all be independent products, and the core defining parameters of each product are as follows:
[0265] 1. Cow dung-based hydrophilic loose fiber (see...) Figure 3 Left-side submerged fiber): It must meet the following requirements: "Raw material with a sieve mesh size of 7-28 mesh, a submersion rate of ≥95% within 30s, a high degree of beating controlled to be ≥16°SR [the testing standard for this parameter is according to GB / T 33324-2016 "Determination of pulp beating"], and a moisture content calculated as the price of oven-dry material with a moisture content of 15%" (Example 2 Submodule A1 process indicators);
[0266] 2. Cow manure-based mixed-excipient CMC powder (see...) Figure 11 The following conditions must be met: "Carboxyl content ≥ 7%, degree of substitution ≥ 0.6, and no agglomeration or dissolution at a concentration of 1‰" (Process parameters of submodule A2 in Example 3).
[0267] 3. Reclaimed water (Module B product): must meet the following requirements: "dissolved salt ≤ 0.3%, COD ≤ 100 mg / L, pH 6.5~7.5" (Process parameters of Module B in Example 4);
[0268] 4. Reclaimed water purification sludge (see...) Figure 5The following conditions must be met: "Solid content ≤ 40%, Fe(OH)3 content ≥ 15%, heavy metals (Pb / Cd / Cr / Hg) ≤ GB 5085.3-2007" (Process indicators of module B in Example 4). When used independently as a combustion aid, the addition amount of 5% to 10% (as a percentage of the mass of char) can improve the ash formation efficiency by ≥ 90% (Data from sub-module C3 in Example 5). When used as a desulfurizing agent, the H2S removal efficiency is ≥ 90% (Application indicators of module D in Example 4).
[0269] 5. Cow dung-based straw wood vinegar and its alkalization solution (see...) Figure 10 Unalkalized wood vinegar solution must meet the following requirements: pH 2.5–3.8, total organic acid content ≥40%, and specific gravity 1.03–1.08 g / cm³ at 20°C. 3 (Example 5 Submodule C1 index), after alkalization, the soluble salts must meet the following requirements: "pH 5.5 to 9.5, organic acid salt content ≥ 35%" (Example 5 Module C2 Commercial Index), when used independently as a soil conditioner, the dosage is 10 to 15 to 20 L per acre (Example 6 Saline-alkali land application data);
[0270] 6. Quick-dissolving granular organic fertilizer / organic-inorganic compound fertilizer (see...) Figures 12-16 ):
[0271] The quick-dissolving organic fertilizer must meet the following requirements: "N+P2O5+K2O≥5%, solubility in water at 20℃ for 30 minutes≥80%, compressive strength≥15N / particle" (Sub-module D3 index of Example 6, which meets the requirements of NY / T525-2021 "Organic Fertilizer");
[0272] Organic-inorganic compound fertilizers must meet the following requirements: "organic matter ≥ 15% (dry basis), N + P2O5 + K2O ≥ 15% (dry basis), solubility in water at 20℃ for 30 minutes ≥ 75%, compressive strength ≥ 12 N / particle" (Application indicators in Example 6, which meet the requirements of Type II of GB / T 18877-2020 "Organic-Inorganic Compound Fertilizers"). Among them, the proportion of organic fertilizer raw materials (fermented manure + pre-fermented straw) is ≥ 40% (corresponding to organic matter ≥ 15%), and the proportion of inorganic fertilizer raw materials (urea + diammonium phosphate) is ≤ 60% (corresponding to total nutrients ≥ 15%).
[0273] Probiotic products must meet the following requirements: "live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days" (Sub-module D2 index of Example 6), and when used independently as drip irrigation fertilizer, they should be compatible with a filter pore size ≥ 1.2 mm (Operational standard of Example 8).
[0274] The production of the aforementioned independent products can be carried out separately from the original recycling system, and the specific basis for decoupling is as follows:
[0275] Cow dung-based hydrophilic and fibrous fiber: It can be produced by simply “cow dung solid-liquid separation (solid content ≤40%) → hot soaking (60~90℃) → sieving” (independent process of sub-module A1 in Example 2), without relying on modules B~D;
[0276] Cow dung-based hybrid CMC powder: only requires "caow dung fiber alkalization → etherification (sodium chloroacetate molar ratio 1:1~1.5) → drying (60~90℃)" (Example 3 sub-module A2 independent process), without relying on other modules;
[0277] Reclaimed water and purified sludge: Only “wastewater with dissolved salt content ≤0.3% → polyferric sulfate sedimentation + biochemical treatment” (Module B independent process in Example 4) is required. It can treat livestock and poultry breeding wastewater output independently without the need for associated module A.
[0278] Wood vinegar and its alkalization solution: only requires "cow dung + straw (solid content ≥75%) → dry distillation (400~600℃) → alkalization (sodium carbonate / sodium hydroxide)" (Example 5 Module C1~C2 independent process), without relying on modules A / B / D;
[0279] Quick-dissolving organic fertilizer: It only requires "bionic pretreatment of livestock and poultry manure (37±2℃, enzyme addition 0.8%~2.0%) → aerobic fermentation (25 days) → granulation (temperature ≤60℃)" (independent process of sub-modules D1~D3 in Example 6), which can process manure output independently without the need for associated modules A / C.
[0280] [Value Corresponding to the Attached Image]
[0281] The attached chart provides visual evidence and compliance support for "independent products":
[0282] Cow manure-based hydrophilic fiber ( Figure 3 The "sinking characteristics" of the plant fiber meet the requirement of "sinking rate of plant fiber ≥90%" in QB / T4454-2013 "Papermaking Auxiliaries";
[0283] The water quality indicators of the reclaimed water (Module B product) meet the GB 5084-2021 "Standards for Irrigation Water Quality" and can be directly used for agricultural registration.
[0284] Quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) Figures 12-16 The "dissolution rate ≥80% in 30 minutes" meets the requirements of NY / T 525-2021. The requirement of "dissolution rate ≥75% for fast-dissolving products" in "Organic Fertilizers" and "heavy metals not exceeding the standard" (Example 5 / 6 indicators) meet the requirements of GB / T 38400-2019 "Limits of Toxic and Hazardous Substances in Fertilizers";
[0285] Wood vinegar alkalizes salt ( Figure 10The pH and organic acid salt content of the product comply with the industry standard T / CNFPIA 3024-2022 "Agricultural Wood Vinegar", which facilitates compliance during market promotion.
[0286] Of course, those skilled in the art will also make many modifications and improvements to the technical solution of the present invention. However, these equivalent changes and modifications that do not break through the overall framework of the technical solution of the present invention and ultimately achieve full coverage of the content described in the technical solution of the present invention should all fall within the protection scope of the present invention.
[0287] Note 9: The selective conjunctions or symbols “or”, “or / and”, “ / ”, “or and”, “or again”, and “or may” used in this technical solution and specification have the following meanings:
[0288] The first type, "or", is used in the general sentence pattern: A or B, meaning: choose one from two options - A or B;
[0289] The second and third types, namely "or / and" and " / ", are equivalent. Using the general sentence patterns: A or / and B, A / B, both mean: choose one from three options—A, B, A and B; further, A or / and B or / and C or / and D…, A / B / C / D…, their meaning becomes: choose one or more combinations from A, B, C, D…
[0290] However, the third type of " / " also has two other meanings. One is to indicate the ratio between two quantities, for example, A / B=3 / 5=3:5, that is, A is more than B; the other is that " / " is equivalent to "÷".
[0291] The fourth type, "or and", uses the general sentence structure: A or B, which is equivalent to "A or B again" or "A, or B again", meaning: choose one from two options - A, A and B;
[0292] The fifth type is "or again", which is equivalent to "or and".
[0293] The sixth type is "or", which is equivalent to "or".
Claims
1. A method for the green and high-value recycling of all components of cow manure, characterized in that: The system comprises modules A, B, and / or a combination of C and D; Module A is a high-value conversion module for cow manure, including a cow manure-based hydrophilic decomposable fiber submodule A1 and / or a cow manure-based hetero-auxiliary CMC submodule A2; Module B is for the resource utilization of biochemically regenerated "greywater", including: as a filler for paper, or incorporated into carbon fuel products by Module C as an oxidation combustion catalyst; And / or the iron hydroxide in the fermented manure and poultry manure material mixed in module D is used as an oxidative catalyst for desulfurization of hydrogen sulfide and a nutrient element of fertilizer. Module C is used for the dry distillation of cow dung to obtain charcoal, wood vinegar and its alkalization to obtain wood vinegar alkalization products; Module D is used to dispose of the foul liquid from the solid-liquid separation of cow dung from Module A, the purified sludge from "reclaimed water" from Module B, and livestock and poultry manure including cow dung, which is then fermented and decomposed to produce organic fertilizer. The combination of modules A, B, and / or C / D forms a cross-chain collaboration of "waste-product-functional reuse", realizing the green and high-value recycling of all components of cow manure.
2. The method for the green and high-value recycling of all components of cow dung according to claim 1, characterized in that, The process of submodule A1 (hydrophilic and porous fiber made from cow dung) includes: (1) Raw material pretreatment: After solid-liquid separation, the loose fibers with a water content of no more than 60% obtained from the cattle manure and urine from the centralized cattle pen are graded using any level of sieve in the range of 7 to 28 mesh. After obtaining the long fibers on the sieve, they can be further desanded and impurities removed by air separation equipment or hydrocyclone to obtain the hot water soaking material 1. (2) Intermittent countercurrent hot leaching: Using clean water containing ≤0.3% dissolved salt, the material to be leached was subjected to 3 hot leachings + 1 room temperature rinsing (all based on wet material weight): First extraction, ingredients: hot water 1 (by dry weight): water that has been extracted 2, 3 and 4 times in countercurrent immersion = 1:6~9, squeezed to separate solid and liquid, to obtain hot water 2 and the most concentrated water (for module B to process, or added to the "cattle manure from the centralized cattle pen" mentioned in (1), and after solid-liquid separation, it is also for module B to process); Second leaching, ingredients: hot water leaching material 2: water that has been leached 3 and 4 times in countercurrent leaching = 4: 6~9, squeeze to separate solid and liquid, to obtain hot water leaching material 3 and medium-concentrated water (for reuse in the first leaching). The third leaching process involves the following ingredients: material 3 to be leached in hot water and water that has already undergone four countercurrent leaching cycles in a ratio of 4:6 to 9. The mixture is then squeezed to separate the solid and liquid components, yielding material 4 to be leached at room temperature and low-concentration water (for reuse in the second leaching). Room temperature immersion washing, ingredients: 4 parts of material to be immersed at room temperature: fresh clean water / recycled water = 4:6~9, extrusion to separate solid and liquid, to obtain wet hydrophilic decomposable fiber material with a water content of 75%; As mentioned above, the heat for the "three hot extractions" comes from the frictional heat generated by the high-concentration grinding machinery or the heating of the anti-substance aging and heat preservation tank. The "ingredients" are added to the anti-substance aging and heat preservation tank by adding a stirrer. The "extrusion for solid-liquid separation" is achieved by adding a pulping machine outside the outlet of the anti-substance aging and heat preservation tank.
3. The method for the green and high-value recycling of all components of cow dung according to claim 1, characterized in that, The process for submodule A2 (cow dung-based heterologous CMC) includes alkalization, etherification, rough neutralization, drying, and pulverization steps, wherein: (1) Raw material preparation: After solid-liquid separation, the loose fibers obtained from the cattle manure and urine from the centralized cattle pen are graded by any first-level sieve in the range of 7-28 mesh to obtain short fibers under the sieve. The short fibers under the sieve, which are converted to a moisture content of 15%, are used as the main raw material. (2) Alkalization: Add 25% to 35% sodium hydroxide / potassium hydroxide solution, short fiber: solution = 1:3 to 5 by mass; (3) Etherification: Add sodium chloroacetate / potassium chloroacetate, sodium chloroacetate / potassium chloroacetate: short fiber (by dry weight) = 1:1~1.5 molar ratio, stir at 50~80℃ for 90~180 minutes to obtain crude CMC-Na intermediate product; (4) Crude neutralization: Add liquid residue containing ≤40% solids of mycelium discarded during the fermentation of citric acid or lactic acid, or wood vinegar, to crude CMC-Na, and stir for no more than 0.5 h at 25℃~50℃ until the pH of the system is 8~9. (5) Drying: Drying in a rake dryer at 60-90℃ until the moisture content is ≤15% and the pH is 7-8, to obtain the dehydrated and dried cow dung-based heterologous CMC intermediate product; (6) Crushing: The dehydrated and dried cow dung-based mixed auxiliary CMC intermediate product is crushed into powder that passes through a 40-80 mesh sieve using a hammer mill; (7) Mix in hydrophobic barrier agent: Use any one or more of the following combinations selected from waste cooking oil, vegetable oil, soap residue / adsorption and decolorization waste sludge from the oil and fat industry, and purification sludge from the "most concentrated water" in submodule A1, and add the amount of 1% to 10% of the mass of the "powder" in item (6) above to obtain cow dung-based mixed auxiliary CMC powder product.
4. The method for the green and high-value recycling of all components of cow dung according to claim 1, characterized in that, Module B is a biochemical method for the resource utilization of reclaimed "greywater," and its process includes: Module B processes the wastewater from the hot soaking process of producing hydrophilic desiccant fibers from cow dung in submodule A1. The wastewater contains ≤0.3% dissolved salts and is purified by "polyferric sulfate sedimentation or activated biochemical sludge method" to obtain reclaimed water and clean water sludge with ≤40% solids content containing ferric hydroxide. Reclaimed water is reused in submodule A1. The uses of purified water sludge can be selected from at least one or more of the following three combinations: First, it can be used as a filler in paper, such as core paper, roll paper, and corrugated paper, replacing 50% to 100% of any one or more combinations of calcium carbonate, clay, and iron oxide; Second, it can be incorporated into carbon fuel products in module C as an oxidation combustion catalyst; Third, it can be incorporated into the manure and poultry manure fermentation material in module D, utilizing the iron hydroxide therein as an oxidation catalyst for desulfurization and a nutrient element for fertilizer.
5. The method for the green and high-value recycling of all components of cow dung according to claim 1, characterized in that, This module C includes submodules C1, C2, and C3: (1) Submodule C1 (dry distillation of cow dung blend): ① Batching: Wet cow dung with a solid content ≤40% after solid-liquid separation is mixed with straw powder with a solid content ≥80% to adjust the solid content to ≥75%, or 5-10% of the total mass of dry cow dung and straw powder with a water content of 15% is added from the clean water sludge from module B; ② After mixing, compaction: The mixture is mechanically extruded to form rods, blocks, or spheres; the diameter of the rods is in the range of 8-30 mm, and the cubic size of the blocks or spheres is in the range of 10-50 mm; ③ Dry distillation: The cow dung blend in rods or blocks is processed by dry distillation machinery to obtain wood vinegar and carbon rods or blocks or spheres with no volatile organic matter, and a small amount of crushed carbon / powder: (2) Submodule C2 (Alkalization of Wood Vinegar): The dry distilled wood vinegar obtained from submodule C1 is neutralized with alkali powder. The alkali powder includes any one or more of the following: sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, lime powder + sodium sulfate powder, lime powder, fly ash, wood ash, calcium carbonate, wollastonite powder, talc powder, dolomite powder, red mud powder discarded from the aluminum industry, salt mud powder discarded from the chlor-alkali industry, boron-magnesium mud powder discarded from the borax industry, and tailings powder discarded after magnesium extraction from dolomite. The neutralized mixture is convenient for downstream application. A multi-component commercial formulation or intermediate solution with pH buffering capacity, wherein the total pH range of the "multi-component commercial formulation or intermediate solution with pH buffering capacity" is pH 5.5 to 9.5; wherein, when neutralized to pH ≤ 7, the solution is adsorbed by activated carbon, filtered to obtain a clear liquid, and the clear liquid is packaged into a commercial product, or a sodium / potassium alkali is added to raise the pH further, and then the clear liquid is also packaged into commercial products in groups; the filtered precipitate sludge is sent to module D to be mixed into organic fertilizer or returned to sub-module C1; or sent to the rubber / plastics industry as a body filler; (3) Submodule C3 (Charcoal Products): ① The charcoal rods, charcoal blocks, or charcoal balls obtained from submodule C1, which contain iron-containing elements and come from the clean water sludge in module B, are screened, sorted, and packaged to produce a type of charcoal product that burns without smoke in the air [and spontaneously combusts to produce ash, with the heavy metal (Pb / Cd / Cr / Hg) content in the ash meeting the requirements of GB 5085.3-2007 "Identification Standard for Hazardous Waste - Leaching Toxicity Identification"] for heating and grilling purposes; ② For charcoal rods, charcoal blocks, charcoal balls, and a small amount of charcoal chips / powder that have not been mixed with the aforementioned water purification sludge, they can be further pulverized and then mixed with any or more of iron oxide, yellow mud, red clay, and water purification sludge from module B. The amount of the mixture is controlled within the range of 5-10% of the mass of the charcoal chips / powder, or a binder within the range of 3-5% of the mass of the charcoal chips / powder can be added. The binder includes any or more of starch, CMC, and the cow dung-based mixed auxiliary CMC described in claim 3. After being extruded and pressed or molded into any of the following solid charcoal shapes: auspicious heart shape, mooncake shape, zodiac animal shape, or blessing character shape, and then dried, shaped, and packaged, it is a charcoal product for heating or grilling that can be burned in the air without smoke and can spontaneously combust, producing toxic heavy metal ash within the standard limits.
6. The method for the green and high-value recycling of all components of cow dung according to claim 1, characterized in that, Module D is responsible for processing the foul-smelling liquid from the solid-liquid separation of cow dung from Module A, the purified sludge from "grey water" in Module B, and mixing it with livestock and poultry manure, including cow dung, for fermentation and composting to produce organic fertilizer. Specifically, it includes the following sub-modules: D1, D2, and D3. D1: Bionic Pretreatment: Utilizing the odorous liquid obtained from the solid-liquid separation of cow dung from Module A, it is added to livestock and poultry manure. Then, 5-10 kg / ton of purified sludge from Module B is added, simultaneously mixing it with the odorous liquid and livestock and poultry manure to form a slurry with the most pungent manure odor at a moisture content of 65%-80%. This slurry is then introduced into a closed reaction tank (5-50m³). 3 The temperature is controlled at 37±2℃. Compound digestive enzyme (containing cellulase and protease, used to degrade crude fiber and eliminate malodor) is added at 0.8% to 2.0% of the raw material mass. The mixture is stirred intermittently (60 to 120 r / min, stirring for 1 to 10 min / stopping for 1 to 5 min) until the malodorous components are ≤10% of the feed (ammonia ≤10 ppm, hydrogen sulfide ≤5 ppm) and small molecules are ≥70%. The time is in the range of 3 to 12 hours to obtain odorless enzymatic hydrolysis slurry intermediate product 1. D2: Aerobic Fermentation: The intermediate product 1 described in submodule D1 is mixed with intermediate product 2 (pre-fermented straw to a moisture content of 30%) (pre-fermentation process: straw is crushed to 5-10mm, composted at 50℃ for 3 days, turned twice during the process), and then mixed with livestock and poultry manure with a moisture content ≤50% to a total moisture content of 55%-60%. This mixture is then introduced into the fermentation tank, and 1%-2% of the total moisture content of the livestock and poultry manure mixture (containing Bacillus subtilis (≥5×10⁻⁶)) of the compound fermentation bacteria is sprayed. 8 CFU / g), Saccharomyces cerevisiae (≥3×10) 8 CFU / g), total viable count ≥1×10⁻⁶ 9 The product (CFU / g) undergoes multiple turning and water spraying operations in the fermentation tank. After aerobic fermentation in the tank for no more than 25 days, the final organic fertilizer is ensured to meet the requirements of NY / T525-2021 for odorless organic fertilizer intermediate product 3 through pH adjustment (6.5-7.5) and microbial degradation. D3: Granulation or compounding of intermediate product 3 followed by granulation: "compounding" refers to adding conventional N / P / K fertilizers, probiotic preparations, or 3-5 parts by weight of cow manure-based auxiliary CMC from module A2 / based on 100 parts by weight of the material to be granulated. The temperature of the granulated material is strictly controlled below 60°C, and the moisture content of the material entering the granulator is controlled within the range of 25-35%. Intermediate product 4 is prepared from any of the following products: quick-dissolving granular organic fertilizer, quick-dissolving granular organic-inorganic compound fertilizer, quick-dissolving granular bio-organic fertilizer, and quick-dissolving granular compound microbial fertilizer. Intermediate product 4 is then hardened by air blowing and introduced into a sieve with an aperture of 3–7 mm. After passing through the sieve, intermediate product 4 yields any of the following products: quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021), quick-dissolving granular organic-inorganic compound fertilizer (corresponding to GB / T18877-2020), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥ 100 million CFU / g, survival period ≥ 30 days, corresponding to Ministry of Agriculture standard NY884-2012), or quick-dissolving granular compound microbial fertilizer (live bacteria count ≥ 200 million CFU / g, survival period ≥ 30 days, corresponding to national standard GB / T 23486-2009).
7. The method for the green and high-value recycling of all components of cow manure according to any one of claims 1 to 6, characterized in that, By using modules A and B, or a combination of modules C / D, the following requirements for collaborative material transport and compatibility control can be met: (1) Material transfer connection: The water (containing ≤0.3% dissolved salt) generated by submodule A1 needs to be transported to module B, and the clean water sludge (containing ≤40% solids) generated by module B needs to be distributed to module C or D; the wood vinegar liquid generated by submodule C1 needs to be alkalized by submodule C2 to obtain wood vinegar alkalized products with a soluble purity ≥95% (i.e., insoluble precipitate <5%) based on the total mass of wood vinegar alkalized products; (2) Compatibility control: When fermenting module D, the amount of water purification sludge added by module B shall not exceed 8% of the mass of livestock and poultry manure mixture; when preparing charcoal by submodule C3, if cow manure-based mixed auxiliary CMC from submodule A2 is added as a binder, its addition amount shall be controlled at 3% to 5% of the mass of crushed charcoal / powder. (3) Quality traceability: When materials are transferred between modules, the "source module - transfer time - key parameters" (such as the carboxyl content of sub-module A2 CMC ≥7% and the calorific value of sub-module C3 charcoal ≥3500kcal / kg) must be recorded to form a traceable ledger and ensure that the end products (such as organic fertilizer and charcoal) meet the corresponding industry standards (NY / T525-2021 "Organic Fertilizer Standard" and GB / T30727-2014 "Charcoal for Barbecue") respectively.
8. The method for the green and high-value recycling of all components of cow manure according to any one of claims 1 to 7, characterized in that, The core performance indicators and operational requirements of the terminal products of modules A, C, and D in specific application scenarios are as follows: (1) Submodule A2 Cow dung-based mixed auxiliary CMC powder product: When used for dust control in deserts / dust-prone areas, add water to 4-16 kg of powder to prepare 1.000 m³ of solution. 3 The gel is sprayed at a rate of 10-17m per acre. 3 Within 4 hours after spraying, a hardened, water-retaining gel shell is formed on the ground surface, with a dust reduction efficiency of ≥60%. Under moderate rain conditions (rainfall ≤15mm / 24h), the gel shell will absorb water and soften, but the gel shell retention rate is ≥70%. When used as a binder for organic fertilizer microcapsules for acidic soil improvement, the addition amount is 5% to 8% of the total mass of the conditioner and organic fertilizer microcapsules, which can increase the particle formation rate of the conditioner-carrying organic fertilizer microcapsules to ≥92%. After application in pH 4.5 red soil, the soil aggregate (>0.25mm) content increases by ≥15% after 30 days. (2) Sub-module C3 Charcoal Products: The calorific value of charcoal for heating is ≥3500kcal / kg, the burning time is ≥3 hours / kg, and there is no visible smoke during combustion; the charcoal for barbecue can be ignited in the air or activated at 800~900℃, the ash content is ≤18%, and the products comply with GB / T 30727-2014 "Charcoal for Barbecue" standard; (3) Module D Organic Fertilizer Products: The solubility rate of quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021) in water at 20℃ is ≥80% / 30min, and it is suitable for drip irrigation systems (filter pore size ≥1.2mm); the solubility rate of quick-dissolving granular bio-organic fertilizer (live bacteria count ≥100 million CFU / g, survival period ≥30 days, corresponding to the Ministry of Agriculture standard NY884-2012) is ≥100 million CFU / g, and the survival period is ≥30 days. When applying it, it should be avoided to use it at the same time as fungicides.
9. The method for the green and high-value recycling of all components of cow manure according to any one of claims 1 to 8, wherein any or more combinations of sub-modules C2, C3, and D in module B and module C can be implemented as independent claims, provided that none of them involve restrictions on cow manure or restrictions between them.
10. The method for the green and high-value recycling of all components of cow manure according to any one of claims 1 to 9, wherein the cow manure-based hydrophilic fiber, cow manure-based mixed auxiliary CMC powder, reclaimed water, reclaimed water sludge, cow manure-based straw wood vinegar and the wood vinegar alkalization liquid obtained by alkali neutralization, any of the following can be an independent product: quick-dissolving granular organic fertilizer (corresponding to NY / T525-2021), quick-dissolving granular organic-inorganic compound fertilizer (corresponding to GB / T18877-2020), quick-dissolving granular bio-organic fertilizer (live bacteria count ≥100 million CFU / g, survival period ≥30 days, corresponding to Ministry of Agriculture standard NY884-2012), quick-dissolving granular compound microbial fertilizer (live bacteria count ≥200 million CFU / g, survival period ≥30 days, corresponding to national standard GB / T 23486-2009).