Green low-carbon recycling and energizing coupling method for wine brewing waste

Abstract

The invention provides a green low-carbon recycling and energy conversion coupling method for wine brewing waste, and belongs to the technical field of resource utilization. Comprising the following steps: (1) coarse screening; (2) heat drying; (3) fine screening; (4) pyrolyzing and carbonizing; (5) energy conversion; (6) tail gas treatment; and (7) preparing a liquid-phase product. Aiming at the wine brewing waste treatment and resource utilization process, the invention aims at solving the problem of how to prevent excessive wine brewing waste from being directly discharged into the environment to cause harm to the environment; how to digest huge wine brewing wastes; and how to turn waste into wealth and realize resource utilization of wine brewing wastes. A pyrolysis and carbonization technology is coupled with a green wine brewing technology, and a green low-carbon recycling and energy regeneration coupling technology for wine brewing waste is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of resource utilization, and in particular to a green and low-carbon resource and energy coupling method for brewing waste. Background Art

[0002] Winemaking waste is rich in nutrients, including fiber, starch, protein, fat, amino acids, various vitamins, trace elements, enzymes and other active substances. At the same time, winemaking waste also contains relevant bacterial species and rich in microbial content. If not handled in time, it is easy to spoil, which not only wastes resources but also pollutes the environment. How to quickly dispose of the huge amount of winemaking waste is an urgent issue in the field of resource utilization of winemaking waste.

[0003] Common methods for resource utilization of brewing waste include: producing feed, but the nutritional value and fertilizer efficiency are low; making condiments, but the safety is still questionable; extracting functional substances, but it is limited by the complex ingredients and high cost; using it as energy, but the energy efficiency is low and there is a problem of secondary pollution.

[0004] Pyrolysis carbonization technology refers to the formation of high-carbon compounds from biomass materials under a low-oxygen or oxygen-free environment at high or low temperatures for a certain period of time. Since pyrolysis carbonization technology can reduce the volume of brewing waste, kill related pathogenic microorganisms, and form high-carbon compounds with porosity, high specific surface area, and containing mineral elements, hydroxyl or carboxyl functional groups. The present invention makes full use of the advantages of pyrolysis carbonization technology. The biochar prepared by pyrolysis carbonization of brewing waste can be used for land use, becoming an effective method for quickly disposing of huge brewing waste. There is no related technical report in the prior art. Summary of the invention

[0005] The purpose of the present invention is to propose a method for coupling green and low-carbon resource and energy utilization of brewing waste. In the process of brewing waste treatment, disposal and resource utilization, efforts are made to solve the problems of how to avoid excessive brewing waste from being directly discharged into the environment and causing harm to the environment; how to dispose of huge amounts of brewing waste; how to turn waste into treasure and utilize brewing waste as a resource; by coupling pyrolysis carbonization technology with green brewing technology, a green and low-carbon resource and energy coupling technology for brewing waste is proposed.

[0006] The technical solution of the present invention is achieved in this way:

[0007] The present invention provides a green and low-carbon resource and energy coupling method for brewing waste, comprising the following steps:

[0008] (1) Coarse screening: The brewing waste generated by the brewing process is screened through a 6-7 mm sieve, the brewing waste under the sieve is thermally dried, and the inorganic impurities in the cellar mud on the sieve are treated as waste;

[0009] (2) thermal drying: drying the brewing waste under the sieve in step (1) by thermal drying, wherein the moisture content of the brewing waste after thermal drying is reduced to less than 30%;

[0010] (3) Fine screening: The brewing waste obtained by thermal drying in step (2) is sieved through a 4-5 mm sieve, and the brewing waste on the sieve is subjected to pyrolysis carbonization treatment, and the brewing waste under the sieve is used as a feed additive for ecological breeding;

[0011] (4) Pyrolysis carbonization: The finely screened brewing waste is transported to a pyrolysis device for pyrolysis to prepare brewing waste biochar;

[0012] (5) Energy conversion: The pyrolysis gas generated during the pyrolysis carbonization process is converted into hot water through energy conversion, and the heat energy is transferred to the thermal drying process to achieve energy recovery and utilization. At the same time, the remaining heat energy is used for steam generation;

[0013] (6) Tail gas treatment: The odor generated during the pyrolysis of brewing waste and the tail gas generated during the energy utilization of pyrolysis gas are collected and treated, and the tail gas emissions meet the relevant national emission standards;

[0014] (7) Liquid products: The liquid products generated during the pyrolysis of brewing waste are collected through pipelines and processed to prepare high-value added products.

[0015] As a further improvement of the present invention, the brewing waste includes but is not limited to: one or more brewing residues from sorghum, wheat, rice, and sweet potato.

[0016] As a further improvement of the present invention, the temperature of the brewing waste during the drying process in step (2) is between 60-100°C.

[0017] As a further improvement of the present invention, the pyrolysis temperature in step (4) is 400-800°C, the heating rate is 10-100°C / min, and the residence time of the brewing waste in the device is 20-120 min.

[0018] As a further improvement of the present invention, in step (4), gas is generated by a continuous pyrolysis device, a low oxygen or oxygen-free environment is achieved in the device, or nitrogen, argon, carbon dioxide, or water vapor is introduced as a protective gas.

[0019] As a further improvement of the present invention, the organisms in step (4) are used as carbon-based fertilizers, soil improvement materials, sewage treatment materials or sludge treatment materials.

[0020] As a further improvement of the present invention, the carbon-based fertilizer is used for green planting, and the crops harvested from the planting are used as raw materials for brewing wine.

[0021] As a further improvement of the present invention, the brewing raw materials include but are not limited to: one or more of sorghum, wheat, rice, and sweet potato.

[0022] As a further improvement of the present invention, the collection method in step (6) is closed pipeline collection or negative pressure hood collection; the treatment method is desulfurization and denitrification treatment through at least one process of catalytic oxidation / catalytic reduction, elution absorption, biological filtration, and activated carbon filtration.

[0023] As a further improvement of the present invention, the treatment method in step (7) is a separation and / or purification technology.

[0024] By combining the brewing process, pyrolysis carbonization process, and carbon-based fertilizer green planting technology, the brewing waste generated at the brewing process end is converted into brewing waste biochar using the pyrolysis carbonization process; the brewing waste biochar is used as a green carbon-based fertilizer in green planting to increase soil organic carbon and increase crop yields; after the crops are harvested, they are used again as brewing raw materials and put into the brewing process.

[0025] Preferably, the preparation method of the green carbon-based fertilizer is as follows:

[0026] S1. Adding brewing waste biochar to ethanol, adding KH560, heating and stirring to react, filtering, washing, and drying to obtain modified brewing waste biochar;

[0027] S2. dissolving chitosan in an acid solution, adding modified brewing waste biochar, stirring and reacting, and obtaining a porous mesh brewing waste biochar;

[0028] S3. adding the porous mesh brewing waste biochar to the nutrient solution, evaporating the solvent, and obtaining nutrient-rich biochar;

[0029] S4. Add nutrient-rich biochar to the bacterial solution, freeze-dry it, and produce green carbon-based fertilizer.

[0030] Preferably, in step S1, the mass ratio of the brewing waste biochar to KH560 is 10:1-2, the temperature of the heating and stirring reaction is 40-50°C, and the time is 1-2h.

[0031] Preferably, in step S2, the mass ratio of chitosan to modified brewing waste biochar is 5-7:10, and the stirring reaction time is 12-14 hours.

[0032] Preferably, the preparation method of the green carbon-based fertilizer is as follows:

[0033] T1. Adding brewing waste biochar to water, adding tannic acid, humic acid and a catalyst, heating and stirring to react, filtering, washing and drying to obtain modified brewing waste biochar;

[0034] T2. Add the modified brewing waste biochar into water, add NHS (N-hydroxysuccinimide) and EDC (1-ethyl-(3-dimethylaminopropyl) carbodiimide), activate the reaction, add silk fibroin peptide, stir the reaction, and obtain a porous mesh brewing waste biochar;

[0035] T3. adding the porous mesh brewing waste biochar into the nutrient solution, evaporating the solvent, and obtaining nutrient-rich biochar;

[0036] T4. Add nutrient-rich biochar to the bacterial solution, freeze-dry it, and produce green carbon-based fertilizer.

[0037] Preferably, in step T1, the mass ratio of the brewing waste biochar, tannic acid, humic acid and catalyst is 10:2-3:1-1.5:0.5-1, the catalyst is a Tris-HCl solution with a pH of 8.5-9.5, the temperature of the heating and stirring reaction is 40-50°C, and the time is 2-4h.

[0038] Preferably, in step T2, the mass ratio of the modified brewing waste biochar, NHS, EDC and silk fibroin peptide is 10:4-7:3-5:3-5, the temperature of the activation reaction is 0-4°C, the time is 30-40min, and the stirring reaction time is 10-14h.

[0039] Preferably, the preparation method of the nutrient solution is as follows: adding a carbon source, a nitrogen source, vitamins, amino acids, and trace minerals into water, stirring and mixing them evenly to obtain a nutrient solution, wherein the mass ratio of the carbon source, nitrogen source, vitamins, amino acids, trace minerals, and water is 10-12:8-10:2-3:1-2:2-3:500; the carbon source is selected from at least one of glucose, fructose, sucrose, and lactose; the nitrogen source is selected from at least one of peptone, beef extract, yeast extract, silkworm pupa powder, fish bone powder, and urea; the vitamins are selected from at least one of vitamin B12, vitamin B2, vitamin A, folic acid, niacin, vitamin C, vitamin E, and vitamin D3; the amino acids are selected from at least one of valine, lysine, isoleucine, phenylalanine, leucine, tryptophan, threonine, alanine, and phenylalanine; the trace minerals are selected from at least one of magnesium sulfate, potassium sulfate, sodium nitrate, ammonium chloride, and potassium phosphate.

[0040] Preferably, the bacterial solution is a suspension of Bacillus subtilis and Bacillus licheniformis, containing 10 10 -10 11cfu / mL, and the mass ratio of Bacillus subtilis to Bacillus licheniformis is 5-7:2-4.

[0041] "Brewery raw materials-brewery waste-brewery waste biochar-brewery food crops-brewery raw materials". During the entire cycle, brewing waste is transformed from the original huge and difficult-to-disposable waste into an intermediate product for resource recycling, realizing the green and low-carbon resource utilization and energy conversion of brewing waste.

[0042] The present invention has the following beneficial effects:

[0043] 1. Biochar from brewing waste has the characteristics of large specific surface area, developed pore structure, retaining the characteristics of plant vascular tissue, high carbon content, and certain mineral nutrients required by plants such as potassium, phosphorus, and magnesium. Biochar from brewing waste is used for green planting and soil improvement materials. It can adjust the acidity and alkalinity of the soil, improve the physical structure of the soil, increase the organic carbon content of different types of soil, improve the nitrogen absorption capacity, promote plant root growth, and increase crop yields. Biochar from brewing waste is used as sewage treatment materials and sludge treatment materials, playing the role of skeleton materials, electron transfer media, and adsorption.

[0044] 2. The pyrolysis gas produced in the pyrolysis and carbonization process of brewing waste biochar can be burned to heat hot water, and the heat energy can be reused in the thermal drying process, which saves energy, reduces energy consumption, and further realizes the energy conversion of brewing waste.

[0045] 3. Through pyrolysis carbonization technology, the entire process cycle of "brewing raw materials-brewing waste-brewing waste biochar-brewing food crops-brewing raw materials" is achieved. The brewing waste is transformed from the original waste into intermediate products, truly realizing the resource and energy utilization of brewing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0047] Figure 1 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] A brewery passes the brewing waste generated by brewing through a 7mm sieve, and the sieved brewing waste is transported to a thermal dryer through a conveyor belt, with a drying temperature of 55-95℃, and dried to a moisture content of 20%. The brewing waste with a 5mm sieve is screened, and the brewing waste with a size smaller than 5mm is used as a feed additive and transported to a farm to feed poultry. The time for poultry to be marketed is reduced by 5 days, and the protein content of poultry and eggs is increased by more than 5‰. The brewing waste with a size greater than or equal to 5mm is transported to a continuous pyrolysis device for pyrolysis at a pyrolysis temperature of 600℃ to prepare brewing waste biochar.

[0051] The generated pyrolysis gas achieves efficient combustion and heat generation in a flameless combustion mode. The heat generated by the pyrolysis gas is recycled for low-temperature sludge drying through steam generation or hot water. The liquid products are collected centrally, separated and purified to prepare high-value additives and saturated hydrocarbons.

[0052] The biochar from brewing waste is used for green planting, with a total application rate of 15t / ha. The grain crop sorghum is planted. After the sorghum matures, the yield per mu increases by 5%, and the soil organic matter increases by 1%. After the sorghum is harvested and processed, it is transported to the brewery and used as a raw material for green brewing. In the process of green planting of biochar from brewing waste, the soil organic matter increases and the soil is improved.

[0053] Example 2

[0054] A brewery passes the brewing waste generated by brewing through a 7mm sieve, and the sieved brewing waste is transported to a thermal dryer through a conveyor belt, with a drying temperature of 60-100℃ and dried to a moisture content of 15%. The brewing waste with a 5mm sieve is screened, and the brewing waste with a size smaller than 5mm is used as a feed additive and transported to a farm to feed poultry. The time for poultry to be marketed is reduced by 4 days, the disease rate is reduced by 2%, and the protein content of poultry and eggs is increased by more than 4‰. The brewing waste with a size greater than or equal to 5mm is transported to a continuous pyrolysis device for pyrolysis at a pyrolysis temperature of 650℃ to prepare brewing waste biochar.

[0055] The generated pyrolysis gas achieves efficient combustion and heat generation in a flameless combustion mode. The heat generated by the pyrolysis gas is recycled into the low-temperature drying stage of the sludge through steam generation or hot water, saving energy. The liquid products are collected centrally, separated and purified to prepare high-value additives, fatty alcohols and thiols.

[0056] The biochar from brewing waste is used for green planting, with a total application rate of 20t / ha. When wheat is planted, the yield per mu increases by 4% and the soil organic matter increases by 2%. After wheat is harvested and processed, it is transported to the brewery as a raw material for brewing green wine. At the same time, the biochar from brewing waste can be used as sewage treatment materials. For example: to 10m 3 4.5 kg of brewing waste biochar was added to the sewage tank, and the initial concentration of tetracycline was 40 mg / L. After the cyclic adsorption treatment of brewing waste biochar, the tetracycline removal rate reached more than 85%.

[0057] Example 3

[0058] A brewery passes the brewing waste generated by brewing through a 7mm sieve, and the sieved brewing waste is transported to a thermal dryer through a conveyor belt, with a drying temperature of 50-80℃ and dried to a moisture content of 18%. The brewing waste is sieved through a 5mm sieve, and the brewing waste smaller than 5mm is transported to a farm to feed poultry, which reduces the time for poultry to be marketed by 2 days, reduces the disease rate by 2%, and increases the protein content of poultry and eggs by more than 6‰. The brewing waste larger than or equal to 5mm is transported to a continuous pyrolysis device for pyrolysis at a pyrolysis temperature of 600℃ to prepare brewing waste biochar.

[0059] The generated pyrolysis gas achieves efficient combustion and heat generation in a flameless combustion mode. The heat generated by the pyrolysis gas is recycled through steam generation or hot water for the low-temperature drying of sludge, saving energy. The liquid products are collected centrally, separated and purified to prepare high-value additives and straight-chain olefins.

[0060] The brewing waste biochar was evenly mixed with agricultural fertilizers, with the fertilizer added at a mass ratio of 10%, and then broadcast and applied at a rate of 10t / ha. After the sorghum matured, the yield per mu increased by 8%, and the soil organic matter increased by 2%. After the sorghum was harvested and processed, it was transported to the brewery and used as a brewing raw material for green brewing. At the same time, the brewing waste biochar can be used as a sludge treatment material and a sludge dehydration skeleton material. The sludge specific resistance was reduced by 40%, and the filter press dehydration efficiency was increased by 20%.

[0061] The present invention utilizes brewing waste to perform coarse screening, and inorganic impurities in the pit mud greater than or equal to 6-7 mm are treated as waste, and brewing waste less than 6-7 mm is thermally dried. After thermal drying, fine screening is performed, and brewing waste greater than or equal to 4-5 mm is subjected to pyrolysis carbonization treatment, and brewing waste less than 4-5 mm is used as a feed additive for ecological breeding. The brewing waste biochar prepared by pyrolysis carbonization is used for green planting to produce brewing raw materials, and can also be used as soil improvement materials, sewage treatment materials, and sludge treatment materials. The pyrolysis gas generated by pyrolysis carbonization is recycled into the thermal drying link by means of hot water and steam generation, thereby saving energy. The liquid phase product generated by pyrolysis carbonization is used to prepare high-value added products through separation and purification technology. In the entire brewing process cycle, the present invention transforms brewing waste from waste that is initially difficult to digest into intermediate products, thereby realizing the resource and energy utilization of brewing waste.

[0062] Example 4 Preparation of green carbon-based fertilizer

[0063] Here’s how:

[0064] S1. Add 10 g of the brewing waste biochar prepared in Example 1 to 200 mL of ethanol, add 1.5 g of silane coupling agent KH560, heat to 45° C., stir to react for 2 h, filter, wash, and dry to obtain modified brewing waste biochar;

[0065] S2. 6 g of chitosan was dissolved in 500 mL of 2 wt% acetic acid solution, 10 g of modified brewing waste biochar was added, the reaction was stirred for 13 h, filtered, washed, and dried to obtain a porous mesh brewing waste biochar;

[0066] S3. 10 g of porous mesh brewing waste biochar was added to 100 mL of nutrient solution, and the solvent was evaporated to obtain nutrient-rich biochar;

[0067] The preparation method of the nutrient solution is as follows: add 11g of glucose, 9g of urea, 2g of vitamin C, 0.5g of threonine, 0.5g of alanine, 0.5g of magnesium sulfate, 0.5g of potassium sulfate, 0.5g of sodium nitrate, 0.5g of ammonium chloride, and 0.5g of potassium phosphate into 500mL of water, stir and mix evenly, and prepare a nutrient solution;

[0068] S4. Add 10 g of nutrient-rich biochar to 100 mL of bacterial solution and freeze-dry to obtain a green carbon-based fertilizer;

[0069] The bacterial solution is a suspension of Bacillus subtilis and Bacillus licheniformis, containing 10 10 -10 11 cfu / mL, and the mass ratio of Bacillus subtilis to Bacillus licheniformis was 6:3.

[0070] Example 5 Preparation of green carbon-based fertilizer

[0071] Here’s how:

[0072] T1. Add 10 g of the brewing waste biochar prepared in Example 1 to 200 mL of water, add 2.5 g of tannic acid, 1.2 g of humic acid and 1 g of catalyst, heat to 45 ° C, stir and react for 3 h, filter, wash and dry to obtain modified brewing waste biochar;

[0073] The catalyst is a Tris-HCl solution with a pH of 9;

[0074] T2. Add 10g of modified brewing waste biochar to 500mL of water, add 5.5g of NHS and 4g of EDC, activate the reaction at 4℃ for 30min, add 4g of silk fibroin peptide, stir and react for 12h to obtain porous mesh brewing waste biochar;

[0075] T3. Add 10 g of porous mesh brewing waste biochar into 100 mL of nutrient solution, evaporate the solvent, and obtain nutrient-rich biochar;

[0076] The preparation method of the nutrient solution is as follows: add 11g of glucose, 9g of urea, 2g of vitamin C, 0.5g of threonine, 0.5g of alanine, 0.5g of magnesium sulfate, 0.5g of potassium sulfate, 0.5g of sodium nitrate, 0.5g of ammonium chloride, and 0.5g of potassium phosphate into 500mL of water, stir and mix evenly, and prepare a nutrient solution;

[0077] T4. Add 10 g of nutrient-rich biochar to 100 mL of bacterial solution and freeze-dry to obtain green carbon-based fertilizer;

[0078] The bacterial solution is a suspension of Bacillus subtilis and Bacillus licheniformis, containing 10 10 -10 11 cfu / mL, and the mass ratio of Bacillus subtilis to Bacillus licheniformis was 6:3.

[0079] Comparative Example 1

[0080] Compared with Example 4, the difference is that step S1 is not performed.

[0081] Here’s how:

[0082] S1. 6 g of chitosan was dissolved in 500 mL of 2 wt% acetic acid solution, 10 g of the brewing waste biochar prepared in Example 1 was added, the reaction was stirred for 13 h, filtered, washed, and dried to obtain modified brewing waste biochar;

[0083] S2. Add 10 g of modified brewing waste biochar into 100 mL of nutrient solution, evaporate the solvent, and obtain nutrient-rich biochar;

[0084] The preparation method of the nutrient solution is as follows: add 11g of glucose, 9g of urea, 2g of vitamin C, 0.5g of threonine, 0.5g of alanine, 0.5g of magnesium sulfate, 0.5g of potassium sulfate, 0.5g of sodium nitrate, 0.5g of ammonium chloride, and 0.5g of potassium phosphate into 500mL of water, stir and mix evenly, and prepare a nutrient solution;

[0085] S3. Add 10 g of nutrient-rich biochar to 100 mL of bacterial solution and freeze-dry to obtain a green carbon-based fertilizer;

[0086] The bacterial solution is a suspension of Bacillus subtilis and Bacillus licheniformis, containing 10 10 -10 11 cfu / mL, and the mass ratio of Bacillus subtilis to Bacillus licheniformis was 6:3.

[0087] Comparative Example 2

[0088] Compared with Example 5, the difference is that step T1 is not performed.

[0089] Here’s how:

[0090] T1. 10 g of the brewing waste biochar prepared in Example 1 was added to 500 mL of water, 5.5 g of NHS and 4 g of EDC were added, the mixture was activated at 4 ° C for 30 min, 4 g of silk fibroin peptide was added, and the mixture was stirred for 12 h to obtain modified brewing waste biochar;

[0091] T2. Add 10 g of modified brewing waste biochar into 100 mL of nutrient solution, evaporate the solvent, and obtain nutrient-rich biochar;

[0092] The preparation method of the nutrient solution is as follows: add 11g of glucose, 9g of urea, 2g of vitamin C, 0.5g of threonine, 0.5g of alanine, 0.5g of magnesium sulfate, 0.5g of potassium sulfate, 0.5g of sodium nitrate, 0.5g of ammonium chloride, and 0.5g of potassium phosphate into 500mL of water, stir and mix evenly, and prepare a nutrient solution;

[0093] T3. Add 10 g of nutrient-rich biochar to 100 mL of bacterial solution and freeze-dry to obtain green carbon-based fertilizer;

[0094] The bacterial solution is a suspension of Bacillus subtilis and Bacillus licheniformis, containing 10 10 -10 11 cfu / mL, and the mass ratio of Bacillus subtilis to Bacillus licheniformis was 6:3.

[0095] Comparative Example 3

[0096] Compared with Example 5, the difference is that steps T1 and T2 are not performed.

[0097] Here’s how:

[0098] T1. Add 10 g of the brewing waste biochar prepared in Example 1 to 100 mL of nutrient solution, evaporate the solvent, and obtain nutrient-rich biochar;

[0099] The preparation method of the nutrient solution is as follows: add 11g of glucose, 9g of urea, 2g of vitamin C, 0.5g of threonine, 0.5g of alanine, 0.5g of magnesium sulfate, 0.5g of potassium sulfate, 0.5g of sodium nitrate, 0.5g of ammonium chloride, and 0.5g of potassium phosphate into 500mL of water, stir and mix evenly, and prepare a nutrient solution;

[0100] T2. Add 10 g of nutrient-rich biochar to 100 mL of bacterial solution and freeze-dry to obtain green carbon-based fertilizer;

[0101] The bacterial solution is a suspension of Bacillus subtilis and Bacillus licheniformis, containing 10 10 -10 11 cfu / mL, and the mass ratio of Bacillus subtilis to Bacillus licheniformis was 6:3.

[0102] Comparative Example 4

[0103] The green carbon-based fertilizer is the brewing waste biochar prepared in Example 1.

[0104] Test Example 1

[0105] Test materials: The test soil was collected from the low-fertility sandy land in Hanjiazhuang, Sizhilan Town, Ningjin County, Hebei Province. Before the test, the soil samples were air-dried and sieved through a 50-mesh sieve to remove plant roots, pebbles and other debris.

[0106] Test objects: green carbon-based fertilizers prepared in Examples 4-5 and Comparative Examples 1-4.

[0107] Test method: Each pot of sand weighs 1500g, 50g of green carbon-based fertilizer is mixed into each pot, and the blank group is mixed with the same amount of sand, mixed evenly, and 500mL of water is added. The treatment is carried out at room temperature for 7 days, and various indicators are measured. The results are shown in Table 1.

[0108] Table 1

[0109]

[0110]

[0111] As can be seen from the above table, the green carbon-based fertilizers prepared in Examples 4-5 of the present invention have the effect of regulating low-fertility soil, can significantly improve soil fertility, increase the total water-stable mass, increase the content of organic matter, N, and P, increase the content of soil bacteria, reduce the content of heavy metals in the soil, and adjust the pH value of the soil.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A green and low-carbon resource and energy coupling method for brewing waste, characterized in that: The following steps are involved: (1) Coarse screening: The brewing waste generated by the brewing process is screened through a 6-7 mm sieve, the brewing waste under the sieve is thermally dried, and the inorganic impurities in the cellar mud on the sieve are treated as waste; (2) thermal drying: drying the brewing waste under the sieve in step (1) by thermal drying, wherein the moisture content of the brewing waste after thermal drying is reduced to less than 30%; (3) Fine screening: The brewing waste obtained by thermal drying in step (2) is sieved through a 4-5 mm sieve, and the brewing waste on the sieve is subjected to pyrolysis carbonization treatment, and the brewing waste under the sieve is used as a feed additive for ecological breeding; (4) Pyrolysis carbonization: The finely screened brewing waste is transported to a pyrolysis device for pyrolysis to prepare brewing waste biochar; (5) Energy conversion: The pyrolysis gas generated during the pyrolysis carbonization process is converted into hot water through energy conversion, and the heat energy is transferred to the thermal drying process to achieve energy recovery and utilization. At the same time, the remaining heat energy is used for steam generation; (6) Tail gas treatment: The odor generated during the pyrolysis of brewing waste and the tail gas generated during the energy utilization of pyrolysis gas are collected and treated, and the tail gas emissions meet the relevant national emission standards; (7) Liquid products: The liquid products generated during the pyrolysis of brewing waste are collected through pipelines and processed to prepare high-value added products.

2. The method according to claim 1, characterized in that The brewing waste is selected from one or more brewing residues of sorghum, wheat, rice and sweet potato.

3. The method according to claim 1, characterized in that During the drying process in step (2), the temperature of the winemaking waste is between 60-100°C.

4. The method according to claim 1, characterized in that: The pyrolysis temperature in step (4) is 400-800°C, the heating rate is 10-100°C / min, and the residence time of the brewing waste in the device is 20-120min.

5. The method according to claim 1, characterized in that In step (4), gas is generated by a continuous pyrolysis device, and a low-oxygen or oxygen-free environment is achieved in the device, or nitrogen, argon, carbon dioxide, or water vapor is introduced as a protective gas.

6. The method according to claim 1, characterized in that The organisms in step (4) are used as carbon-based fertilizers, soil improvement materials, sewage treatment materials or sludge treatment materials.

7. The method according to claim 6, characterized in that The carbon-based fertilizer is used for green planting, and the crops harvested from planting are used as raw materials for brewing wine.

8. The method according to claim 7, characterized in that The brewing raw materials are selected from one or more of sorghum, wheat, rice, and sweet potato.

9. The method according to claim 1, characterized in that: The collection method in step (6) is closed pipe collection or negative pressure hood collection; the treatment method is desulfurization and denitrification treatment through at least one process of catalytic oxidation / catalytic reduction, elution absorption, biological filtration, and activated carbon filtration.

10. The method according to claim 1, characterized in that The treatment method described in step (7) is separation and / or purification technology.

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