435 results about "Compost" patented technology

The invention discloses a polyhydroxyalkanoate-containing multi-component water-based ink binder system, a water-based ink composition and a preparation method and application thereof, and belongs to the technical field of environment-friendly printing materials and water-based ink. According to the invention, a microscopic two-phase or core-shell structure taking the second film-forming resin as a continuous phase and polyhydroxyalkanoate as a dispersed and enriched phase is constructed. Compared with the prior art, a printing layer can be endowed with excellent anti-blocking property, smooth touch feeling and barrier property under an extremely thin dry film only by using an extremely small amount of bio-based components, and meanwhile, excellent adhesive force and abrasion resistance are ensured. In addition, the water-based ink composition also shows excellent household compost and industrial compost degradation performance. The system not only greatly reduces the cost, but also has excellent paper repulping and deinking characteristics, and provides a high-performance solution for environment-friendly printing.

The invention belongs to the technical field of environmental microorganisms, and particularly relates to a microbacterium strain and preparation and application of a microbial agent of the microbacterium strain. The invention discloses a strain of Microbacterium zhangzhouensis GSS18, which is preserved in Guangdong Microbial Culture Collection Center on November 14, 2022, and the preservation number is GDMCC (China General Microbiological Culture Collection Center) No.62978. The strain of Microbacterium zhangzhouensis GSS18 disclosed by the invention has the advantages that the preservation number is CGMCC No.62978; compared with the prior art, the Microbacterium zhangzhouensis GSS18 disclosed by the invention can secrete esterase and lipoid esterase, and can be used for accelerating the rapid conversion of lipid substances of the compost and promoting the compost humus process.

The invention relates to the technical field of organic solid waste resourceful treatment, in particular to a method for enhancing degradation of biodegradable plastic compost based on white-rot fungi and manganese modified charcoal. According to the method, manganese modified charcoal and white-rot fungi are subjected to synergistic treatment, and the efficient method for intensively degrading the biodegradable plastic through aerobic composting is constructed. The method effectively overcomes the technical bottlenecks of slow degradation starting, long degradation period and easy generation of micro-plastic residues of the biodegradable plastic in traditional compost, and realizes rapid and thorough degradation of the biodegradable plastic. Besides, the method also promotes the conversion of humus precursor substances in the compost material and accelerates and stabilizes the synthesis of humus, so that the decomposition degree of the compost product is remarkably improved, and the quality and environmental safety of the final compost product are synchronously improved while the biodegradable plastic is efficiently degraded. And an efficient and reliable solution is provided for recycling of organic solid wastes and degradation of biodegradable plastic compost.

The invention belongs to the field of microorganisms, and particularly relates to bacillus Z161 capable of efficiently degrading straw as well as a screening method and application of the bacillus Z161. The bacillus subtilis Z161 is bacillus mexicanus, the preservation number of the bacillus mexicanus Z161 is CGMCC (China General Microbiological Culture Collection Center) NO.36393, and the bacillus mexicanus Z161 is preserved in the China General Microbiological Culture Collection Center on October 29, 2025. The bacillus Z161 screened by the invention has strong laccase activity and high temperature resistance, and can efficiently degrade lignin under the condition of 50 DEG C; the problem that in the prior art, normal-temperature zymophyte is mostly adopted, and the requirement for fermentation conditions in the fermentation process is harsh is solved, and therefore the rapid compost fermentation technology is easier to achieve. The bacillus Z161 provided by the invention has the advantages of genetic and functional character stability, has good tolerance at high temperature, enables lignin to be quickly depolymerized, and improves the decomposition efficiency.

The invention discloses compost turning and mixing equipment for organic fertilizer production, and relates to the technical field of organic fertilizer production, the compost turning and mixing equipment specifically comprises a chassis, a lifting conveyor is mounted at the front end of the chassis, and a screw conveyor, a storage assembly and a mixing bin are mounted at the rear end of the chassis; material receiving hoppers are mounted at the feeding ends of the two groups of spiral conveyors; the material storage assembly and the material mixing bin are both located between the two sets of spiral conveyors, and a material mixing mechanism is installed in the material mixing bin. Fertilizer turning and auxiliary material adding and mixing are integrated, the fertilizer does not need to be laterally thrown, the requirement for the site area is relatively low, the fertilizer can make full contact with air in the whole turning process, fertilizer aeration is sufficient, and therefore the compost quality is improved, and according to the actual requirement in the turning process, the fertilizer can be conveniently and rapidly turned. The materials for adjusting the carbon-nitrogen ratio and the moisture and the microbial agents for adjusting the microbial fermentation flora are added in an auxiliary mode, manual adding along with equipment is not needed, and the labor intensity of workers can be greatly reduced.

The invention discloses an engineering residue soil improvement matrix and application thereof, the engineering residue soil improvement matrix comprises a base layer and a planting layer, the base layer comprises 50-70 wt% of engineering residue soil, 10-15 wt% of humus soil, 6-8 wt% of a fiber material, 3-5 wt% of a slow release fertilizer, 1-2 wt% of sulfur powder, 2-4 wt% of sodium polyacrylate, 3-5 wt% of polyacrylamide, 2-4 wt% of sodium hydroxide, and 3-4 wt% of a straw decomposition agent; the planting layer comprises 25 to 50 wt% of engineering residue soil, 20 to 30 wt% of peat soil, 4 to 6 wt% of compost, 6 to 8 wt% of a fiber material, 3 to 5 wt% of a slow release fertilizer, 1 to 2 wt% of sodium polyacrylate, 1 to 2 wt% of sodium hydroxide, 3 to 4 wt% of straw biochar, 3 to 4 wt% of a straw decomposition agent, 2 to 4 wt% of zeolite, 3 to 5 wt% of desulfurized gypsum, 1 to 2 wt% of nitrogen-fixing bacteria and 1.5 to 3 wt% of plant seeds. On the basis of a thick-layer base material spraying slope protection technology, spray-seeding materials are improved, waste muck is recycled, and land occupation and water and soil pollution caused by traditional muck landfill or stacking are avoided.

The application provides an in-situ passivation remediation method for heavy metals in farmland soil, and belongs to the field of heavy metal passivation in soil. The in-situ passivation remediation method for heavy metals in farmland soil is composed of the following steps: premixing, primary fermentation and secondary fermentation. The premixing is to uniformly mix pig manure, chicken manure, a composite passivation agent, a microbial inoculum and farmland soil, to adjust the C / N ratio and the water content of the mixture, to obtain a premix, and then to perform primary fermentation and secondary fermentation in an aerobic environment. The in-situ passivation remediation method for heavy metals in farmland soil can effectively combine the passivation agent with the compost fermentation, avoid the adverse effects of the fermentation components on the passivation agent during the composting process, improve the adaptability to different soil characteristics, realize stable and efficient treatment of different characteristic soils, further improve the in-situ passivation remediation effect on heavy metals in farmland soil, and effectively avoid the situation that the heavy metals in the soil are released again after the soil heavy metals are passivated.

The invention relates to the technical field of flammulina velutipes planting, in particular to a flammulina velutipes culture method and compost, which comprises the following steps: S1, preparing purple sweet potato water; the preparation method comprises the following steps: washing fresh purple sweet potatoes, mixing with water in proportion, boiling, cooling, filtering, and taking filtrate as purple sweet potato water for later use; s2, preparing a culture material; the raw materials comprise corncobs, rice bran, bran, cottonseed hulls, sugar beet pulp, soybean hulls, corn flour, brewer's grains, calcium carbonate and shellfish fossils. The preparation method comprises the following steps: weighing solid raw materials in proportion, stirring the raw materials in a stirrer for 10 minutes to obtain a mixture, uniformly mixing the mixture, adding the purple sweet potato water prepared in the step S1, fully stirring the mixture until the mixture is uniformly mixed, and controlling the water content of a final culture material to be 62-68% to obtain the culture medium. The purple sweet potato water is used for completely replacing tap water to serve as a culture material component, the purple sweet potato water is not only a solvent, but also a natural nutrient solution rich in anthocyanin, polysaccharide, vitamins and mineral substances, flammulina velutipes hyphae can absorb and convert the substances, and the anthocyanin content in sporocarp is remarkably increased.

The invention discloses a field returning method based on straw covering and reinforced decomposition fertilizer preparation, and belongs to the technical field of agricultural waste recycling and soil improvement. By constructing a straw-biochar-decomposition agent composite functional system, integrating physical coverage and a biodegradation mechanism, agricultural wastes are used as raw materials to prepare a porous biochar carrier, and the porous biochar carrier has a high specific surface area and a multi-stage pore structure, so that the microbial inoculum loading capacity and the nutrient retention capacity are remarkably improved, and the microbial inoculum decomposition efficiency is improved. The composite decomposition microbial inoculum and concentrated biogas slurry are stabilized by combining an atomization loading technology, efficient decomposition and nutrient slow release of straws are realized, and meanwhile, the forming stability is enhanced by utilizing a degradable adhesive, so that the field applicability and durability of the material are improved.

The invention discloses a bagasse filter mud composting method based on synergistic interaction of sargassum fusiforme and a complex microbial inoculant. The method comprises the following steps: mixing a sugar manufacturing byproduct bagasse and filter mud according to a certain dry weight ratio, and adjusting the moisture and carbon nitrogen ratio; synchronously adding sargassum fusiforme powder and a compound microbial agent, wherein the microbial agent is prepared by compounding bacillus licheniformis and phanerochaete chrysosporium; the high-temperature period is maintained for not less than 7 days, the total fermentation period is about 45 days, and the matured compost and the fertilizer thereof are prepared. The sargassum fusiforme is used as a natural conditioner, so that the composition of nutrient substances can be optimized, nitrogen and water are preserved, and heavy metals are passivated; and the lignocellulose is specifically degraded by the complex microbial inoculants. Through the synergistic effect of the bagasse and the filter mud, the high-temperature period of the compost is remarkably prolonged, the nutrient loss is reduced, the decomposition degree and the environmental safety of a compost product are improved, and an efficient and environment-friendly new way is provided for high-value resource utilization of the bagasse and the filter mud.

The invention relates to the technical field of fabric fabrics, in particular to preparation of a stain-resistant and waterproof polyester composite fabric. The invention discloses a stain-resistant waterproof polyester composite fabric and a preparation method thereof, the composite fabric is composed of three layers from outside to inside, the first layer is a polyester filament yarn surface layer subjected to fluorinated graphene and plant source C18 alkylsilane amphiphobic finishing; the second layer is a copolyamide hot melt adhesive net film with a melting point of 105 DEG C; and the third layer is a degradable multifunctional thermoplastic polyurethane elastomer film loaded with silver zeolite antibacterial microcapsules and conductive carbon nanotubes. An amphiphobic finishing liquid is uniformly deposited on the surface of polyester by adopting a supercritical CO2 one-step method, and nanoparticles and fibers are covalently bonded through a chitosan-citric acid cross-linked network, so that the waterproof grade is still greater than or equal to 90 after 30 times of water washing, the oil repellent grade is greater than or equal to 5, and the water contact angle and the oil contact angle are reduced by lt; the temperature is 5.5 DEG C, and the moisture permeability retention rate is gt; the antibacterial rate is 97%, and the antibacterial rate is gt; the compost degradation rate within 180 days is gt; 90%.

The invention relates to the technical field of agricultural microorganisms, and discloses stress-tolerant bacillus velezensis L-29 and application thereof. The bacillus velezensis L-29 is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.35587. The bacillus velezensis L-29 is named as bacillus velezensis L-29. Experiments prove that the bacillus velezensis L-29 can adapt to various extreme environments, can survive and proliferate under the extreme environments of drought conditions simulated by 0-25% PEG 6000 under the conditions that the pH is 2-12 and the salt concentration is 1.5%, and has various functions of soil improvement (organic matter decomposition and phosphorus activation), plant growth promotion, broad-spectrum disease control and the like. In the secondary fermentation stage of compost, humus generation can be remarkably promoted, compost maturation is accelerated, the good colonization ability is achieved, and after an obtained compost product is applied to normal soil, the nutrient effectiveness can be improved, crop growth is promoted, and the disease resistance is enhanced.

The invention relates to the field of soil improvement, in particular to a method for improving saline-alkali soil through an alkali-reducing fertility-improving stress-resistant saline-alkali soil improver and application. According to the method, a three-factor four-level orthogonal soil improvement experiment is designed through desulfurization gypsum, wormcast and straw compost, the soil improvement effect is further verified in a crop cultivation mode, the optimal improvement proportion of the composition is calculated and determined through an entropy weight-topsis model, and through the mode of combined application of three substances, the soil improvement effect is improved by improving the most basic soil environment. Therefore, the stress damage of the saline-alkali soil to the plants is effectively reduced, and the purpose of improving the saline-alkali soil is achieved.

The application relates to the technical field of soil remediation, and particularly discloses a composite soil remediation agent, a preparation method and application thereof.A composite soil remediation agent comprises modified calcined oyster shell, plant biomass carbon, bone charcoal, compost, microbial preparation and ferrous sulfide; the preparation of the modified calcined oyster shell comprises the following steps: crushing, calcining oyster shell, and then adding a modified solution prepared from urea, rhamnolipid, iminodisuccinic acid tetrasodium and sodium dodecylbenzenesulfonate to modify the calcined oyster shell, so that the modified calcined oyster shell is obtained.The composite soil remediation agent can effectively adsorb and fix heavy metals in slightly heavy metal contaminated soil, reduce the mobility and bioavailability of the heavy metals, and thus reduce the harm of the heavy metals to soil and crops.

The invention discloses a domestication method for efficiently degrading tobacco waste to produce hydrogen by using mixed flora, which comprises the following steps: carrying out anaerobic enrichment domestication culture by taking manure compost as a bacterial source and cellulose prepared from tobacco waste as a core component of a domestication culture medium; the domestication culture medium contains cellulose, ammonium bicarbonate and monopotassium phosphate, and the cellulose concentration gradient is gradually increased without adjusting the pH value; stopping culturing when the hydrogen content in the biogas is reduced by 10%, transferring the biogas to a fresh domestication culture medium for passage according to an inoculum size of 10-20%, and continuously domesticating for 20-40 rounds; inoculating the domesticated mixed flora culture solution into a cellulose liquid fermentation culture medium containing microcrystalline cellulose, ammonium bicarbonate, monopotassium phosphate and a nutrient solution according to the inoculum size of 10-20%; the initial pH of the fermentation liquor is adjusted to 6.5-7.5, high-purity nitrogen is introduced to create an anaerobic environment, and hydrogen is produced through fermentation under the conditions of 35 + / -1 DEG C and 120 r / min. According to the method, flora is easy to culture, hydrogen production is efficient and stable, tobacco waste resources can be utilized, flora stability is high, adaptability is high, and strict sterile conditions are not needed.

The invention discloses an earthworm compost upgrading method based on a bacillus velezensis BV-1 aerobic compost product. Comprising the following steps: by taking an aerobic compost rotten product pretreated by bacillus velezensis BV-1 as a substrate, adjusting the moisture content of the substrate to a proper value without additionally adding a conditioner, inoculating eisenia foetida, performing earthworm composting in a dark environment, slightly turning piles every 4-5 days during the period to prevent anaerobism, and maintaining the moisture content of the substrate to be stable. The quality of the earthworm cast is remarkably improved through'matrix advantage + microorganism continuation effect 'of a BV-1 aerobic composting product, and the total nitrogen content of the earthworm cast reaches 18.29 g / kg and is improved by 12.6% compared with that of a control group; the conductivity is reduced to 1.84 mS / cm and is reduced by 8.91% compared with that of a control group; meanwhile, a nitrogen cycle functional gene (the relative expression quantity of the nosZ gene is increased by 15 times compared with that of a control group) is activated, organic matter degrading bacteria Arenibacter (the relative abundance is 8.37%) are enriched, and unification of high nitrogen, low salt and high biological activity of earthworm compost products is achieved.

The utility model provides a device for producing organic fertilizer by utilizing vinasse waste, which relates to the field of organic fertilizer production and comprises a crushing box (10), a screening box (20), a fermentation box (30) and a collecting box (40), the crushing box (10) is arranged on one side of the screening box (20), and a crushing component is arranged in an inner cavity of the crushing box (10); a screening barrel (21) is arranged in an inner cavity of the screening box (20), and a filter screen (211) is arranged on the bottom face, located in the inner cavity of the screening box (20), of the screening barrel (21). The bottom end of the crushing box (10) is communicated with an inner cavity of the screening barrel (21) through a material guide pipe (14); a fermentation box (30) is arranged at the bottom end of the screening box (20), and a fermentation tank (31) and a stirring assembly are arranged in the fermentation box (30); and the collection box (40) is arranged on the lower side of the fermentation box (30). The device not only can prevent vinasse waste from splashing, but also can realize water guide, ventilation and stirring of compost in the fermentation process.

Described herein is an easy-to-compost water based adhesive composition and the preparing method thereof. The compostable water-based adhesive composition, comprising (a) at least one vinyl acetate-ethylene copolymer, (b) at least one phosphoric acid-modified starch, (c) at least one vegetable oil, and (d) water, wherein the composition has a solid content of larger than 20%.

The invention provides a combined type three-dimensional composting device, and relates to the technical field of waste resourceful treatment. A fermentation bag; a movable stacking rack; the fermentation shed is a telescopic shed body, the movable stacking frame is movably arranged in the fermentation shed, and a temperature detection device is further arranged in the fermentation shed. According to the invention, material loading and unloading can be carried out more conveniently, the space is fully utilized by adopting a stacking composting mode, sequencing batch fermentation can be carried out, air intake in the fermentation process can be controlled through the arrangement of the bidirectional air pipe, compost is fully fermented, the problem that the compost is not fully contacted with oxygen in the aerobic composting process is solved, and the aerobic composting efficiency is improved. And moreover, the device can be used for fermenting wastes on a large scale, the fermentation space is flexible and adaptive, and both the mounting convenience and the operation and maintenance cost are considered.

The invention relates to the technical field of mixing equipment, in particular to a sectional type aeration intelligent composting reactor which comprises a rack and a composting reactor box arranged on the rack, and a stirring assembly used for mixing compost fertilizer is arranged in the composting reactor box. The stirring assembly comprises a stirring shaft rotationally connected to the composting reactor box body and a first spiral blade and a second spiral blade which are arranged on the stirring shaft, the outer diameter of the first spiral blade is larger than that of the second spiral blade, one end of the second spiral blade is fixed to the stirring shaft, and an installation assembly is fixedly installed at the other end of the second spiral blade; the mounting assembly comprises a mounting rod fixed on the second spiral blade and a mounting block fixed on the mounting rod, and the mounting block is connected to the stirring shaft in a sliding manner along the length direction of the stirring shaft. The device has the effect of improving the mixing efficiency of the compost and oxygen.

The invention discloses an areca-nut solid fertilizer for improving the content of catechin and precise nutrition of areca-nuts and application of the areca-nut solid fertilizer, and belongs to the technical field of fertilizer preparation. The preparation method comprises the following steps: mixing cassava straws, cassava residues, hermetia illucens sand, calcium superphosphate, quick lime and zymophyte, and carrying out first composting fermentation to obtain a first fermented product; and adding macroelements containing monopotassium phosphate, potassium nitrate, urea, calcium carbonate and magnesium sulfate in a specific proportion, microelements containing boron, zinc, copper, iron and manganese in a specific proportion and bacillus subtilis into the first fermented product, carrying out second composting fermentation, and carrying out aging treatment to obtain the betel nut solid fertilizer. The prepared betel nut solid fertilizer can accurately provide nutrients according to the requirements of betel nuts for various nutrient elements, and negative effects on soil due to excessive nutrient elements are avoided; meanwhile, the content of areca catechin is increased, and the nutritional value of the areca catechin is enhanced.

The invention discloses a degradable bio-based polyurethane wood protective coating. The coating comprises the following components: 40-60 parts of modified bio-based polyester polyol, 10-20 parts of a cross-linking agent, 3-8 parts of an antibacterial agent, 1-3 parts of a weather-resistant agent, 2-5 parts of a hydrolysis stabilizer, 20-30 parts of a solvent, 1-3 parts of a coupling agent, 0.5-1.5 parts of a leveling agent and 0.5-1.5 parts of a defoaming agent. The preparation method of the degradable bio-based polyurethane wood protective coating comprises the following steps: firstly, esterifying binary acid, dihydric alcohol and renewable biomass resources to prepare bio-based polyester polyol, then modifying the bio-based polyester polyol by using a hydrophobic modifier, finally mixing and dispersing the bio-based polyester polyol with other auxiliaries uniformly, and curing to obtain the degradable bio-based polyurethane wood protective coating. The coating has a static water contact angle of 113 degrees at most after being coated, the QUV aging life reaches 480 h, the antibacterial rate reaches 90% at most, the 90-day compost degradation weight loss rate reaches 60% at most, and the coating is environmentally friendly, low in VOC emission and suitable for efficient and durable protection of wood. The invention also provides an application of the degradable bio-based polyurethane wood protective coating.

This invention discloses a method for producing crop cultivation substrate using sugarcane filter mud and sugarcane pith as main raw materials, comprising the following steps: (1) dissolving and diluting 4,5-dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid in water to obtain a solution; (2) mixing sugarcane slurry, sugarcane pith, the 4,5-dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic acid solution, fermentation agent, and improver, adjusting the moisture content, and then composting and fermenting. The compost is turned over every few days and continuously composted and fermented for several days to obtain the crop cultivation substrate. The crop cultivation substrate produced by this invention is of excellent quality, allowing direct planting of plants without root burn. Therefore, this invention, using sugarcane filter mud and sugarcane pith as main raw materials to prepare and produce crop cultivation substrate, can effectively solve the problem of comprehensive utilization of sugarcane filter mud and improve product sales.

The invention provides multifunctional bacillus licheniformis as well as a derivative product and application thereof, and belongs to the technical field of microbial agents. A multifunctional bacillus licheniformis strain is separated and screened from a chicken manure fermentation pile in a chicken farm in Jianyang City in Sichuan province, is named as Bacillus licheniformis NCF and is preserved in the China Center for Type Culture Collection, the preservation address is Wuhan University, Wuhan, China, the number of the preservation center is CCTCC No.M 20242510, and the preservation time is November 11, 2024. The NCF bacterium has multiple functions, can be added into feed as an additive, helps animals to better digest and absorb nutritional ingredients in the feed, and increases the weight of the animals; organic matters in the excrement can be decomposed through high-temperature fermentation, the fermentation process is accelerated, and the composting fermentation period is shortened; the odor value and the ammonia gas concentration in different livestock and poultry manure / biogas slurry can be effectively reduced.

The invention discloses a humic acid type straw source microbial agent which comprises the following strains: enterococcus faecium, bacillus subtilis, lactobacillus plantarum and saccharomyces cerevisiae. The method has the advantages that turfy soil, biogas residues, biogas slurry and a certain amount of agricultural waste are added into compost with straw microbial agents and livestock and poultry manure as main materials to adjust a proper carbon nitrogen ratio, and more importantly, a compound microbial agent for strengthening the process of the humic acid type straw source microbial agent is inoculated; compared with natural composting fermentation, the composting efficiency and stability are improved, and the fertilizer efficiency and fertility of the organic fertilizer and the resource utilization efficiency of waste are improved.

The invention discloses a repulping water-based bio-based high-barrier coating composition, a coating product as well as a preparation method and application of the coating product, and belongs to the technical field of green packaging materials. The composition is composed of a functional core-shell structure acrylic polymer, polyhydroxyalkanoate particles, an in-situ modified mineral and an intelligent cross-linking system. According to the invention, an organic and inorganic dual interpenetrating network sensitive to pH is innovatively constructed, so that the coating has excellent water resistance, oil resistance and gas barrier property in a use environment, and network swelling and dissociation can be rapidly generated under an alkaline recovery condition. Compared with a traditional technology depending on high mineral filling, according to the scheme, a better barrier effect can be achieved under the low filling amount by utilizing the synergistic enhancement effect of the trace intelligent cross-linking agent and the bio-based particles, meanwhile, the paper is endowed with high fiber recovery yield and excellent industrial and household compost degradation performance, and fluoride addition is completely avoided; the problem that the barrier property, the repulping property and the full biodegradability of paper-based packaging cannot be considered at the same time is effectively solved.

The invention discloses a method for producing an efficient organic fertilizer by using kitchen waste, which comprises the following steps: draining the kitchen waste to obtain kitchen waste solid; cotton stalks and kitchen waste are mixed, and a compost material is obtained; the method comprises the following steps: culturing bacillus by using a T culture medium to obtain a zymophyte solution; mixing the zymophyte liquid with the compost material, adding water, and stirring and fermenting at the temperature of 60 DEG C; after reacting for 12 hours, adding the kitchen waste for the second time; after reacting for 24 hours, adding the kitchen waste for the third time; and reacting for 36 hours to obtain the efficient organic fertilizer. The preparation method of the organic fertilizer has the advantages that the treatment period is extremely short, the kitchen garbage is reduced by 85% within 36 hours, the product after the reaction does not need to be crushed, and the organic fertilizer product with the particle size of about 100 meshes is automatically generated; the method is energy-saving, environment-friendly and high in treatment efficiency, various indexes of the produced organic fertilizer can meet the agricultural industry standard of the People's Republic of China, namely the organic fertilizer, the economic and technical effects are remarkable, and industrial popularization and application are facilitated.

The invention relates to the technical field of abandoned mine ecological restoration, in particular to a method for restoring a mine through engineering abandoned muck and slurry backfilling. The method comprises the following steps: cleaning a mine pit, leveling a terrain, backfilling engineering waste slag, and laying a tailing transition layer to form a graded tailing layer; impurities in the engineering waste muck are screened out, the engineering waste muck is laid on the grading tailing layer, and a compacted muck layer is obtained through compaction; the method comprises the following steps: flocculating and dewatering engineering waste slurry to obtain cement control slurry, adding an exogenous fertilizer for improvement, and then mixing with field waste slag in proportion and backfilling to form a sludge vegetation layer; according to the method, the waste mine is used as a raw material, the residue covering compost layer and the vegetation surface soil layer with certain thickness are sequentially covered on the waste mine, the synergistic ecological effect of soil reconstruction and restoration treatment of the waste mine is formed, green cyclic utilization of waste resources is achieved, the treatment cost of the waste mine is reduced, and the high efficiency and sustainability of mine ecological restoration are improved.

The present application relates to the field of microbiological technology, and specifically provides a compound microbial flora preparation for improving crop straw compost humification and organic carbon fixation and application thereof. The compound microbial flora is composed of saccharophagus degradans CGMCC 1.10397, paenibacillus popilliae CGMCC 1.12900 and bacillus subtilis CGMCC 1.6757. Seed liquids of the above three strains are mixed and cultured in a volume ratio of 1:1:1 to obtain a compound microbial suspension, which is applied to the aerobic composting process of crop straw, can significantly improve the degradation efficiency of lignocellulose, promote the formation of humus and the stable fixation of organic carbon, thereby improving the compost quality, reducing the nutrient loss and greenhouse gas emission. The present application is suitable for the resource treatment of cotton straw, vegetable straw and other agricultural organic wastes.