1135 results about "Compost" patented technology

The invention discloses a pure bio-based PHA aqueous dispersion as well as a preparation method and application thereof, and belongs to the technical field of pure bio-based polymer aqueous dispersion. According to the dispersion, polyhydroxyalkanoate is used as a unique film forming matter, Pickering solid particles and a natural surfactant are adopted for synergistic stabilization, and a bio-based plasticizer can be selected. The emulsion or slurry with the polyhydroxyalkanoate content of 40-85wt% and the particle size of 0.2-3m is prepared through a melting high-pressure homogenization method, a low-temperature wet grinding method or a solvent replacement method. The coating does not contain petrochemical polymer protective colloid and perfluorinated and polyfluoroalkyl substances, and the bio-based content is greater than or equal to 99%. Due to the excellent stability, rheological property and film-forming property of the modified starch, the modified starch becomes an ideal basic material for constructing a multi-layer programmable controlled release and degradation functional coating system, can be used in the fields of paper-based barrier coatings, adhesives, advanced crop seed coats and the like, realizes excellent barrier, bonding and controlled release properties, meets the industrial compost and repulping property standards, and has wide application prospects. The method has green, environment-friendly and industrial potential.

The invention relates to the technical field of environmental microorganisms, in particular to high-temperature-resistant bacillus subtilis and application thereof. The invention discloses a high-temperature-resistant bacillus, which is named as bacillus subtilis HY-1, has been preserved in China General Microbiological Culture Collection Center (CGMCC) on October 17, 2024, and has a preservation number of CGMCC No.32250. The invention further discloses a preparation method of the high-temperature-resistant bacillus. The invention further discloses a culture method of the bacillus, a liquid fungicide prepared from the bacillus and application of the bacillus in kitchen waste biogas residue compost and straw degradation. The high-temperature-resistant bacillus disclosed by the invention is derived from a compost indigenous strain, can reduce the inhibition effect of other indigenous bacteria, and has relatively good degradation capability and high-temperature-resistant performance on cellulose. The method has a wide application prospect in the field of kitchen waste biogas residue resourceful treatment.

The invention relates to the technical field of odor emission reduction, in particular to an odor emission reduction control system and method for livestock and poultry manure compositing. According to the system and the method, concentration changes of ammonia gas, hydrogen sulfide and volatile organic compounds and temperature and humidity data in a composting environment are accurately obtained through real-time performance and multi-parameter association of gas monitoring in the composting process; the method comprises the following steps of: calculating a diffusion path, a speed and a coverage area of gas in a compost body through finite element analysis, quantifying the distribution characteristics of gas concentration in space, optimizing the wind speed, the wind quantity and the layout of a ventilation system, and improving the ventilation efficiency. Pattern recognition is performed on compost environment gas emission data through the convolutional neural network, the turning frequency and the compost microenvironment are dynamically adjusted in combination with the gas concentration, a gas emission high-value area and a main guide source are accurately positioned, accurate control over compost fermentation odor emission is achieved, and the systematicness and refinement level of compost odor treatment is improved.

The invention discloses a composite microbial enzyme preparation and a preparation method thereof, and belongs to the technical field of bioplastic degradation. The enzyme preparation is synergistically constructed through a temperature-sensitive MOFs / Schiff base network composite carrier and black phosphorus quantum dots, FeO (at) ZIF-8 is taken as a core, and PNIPAM is grafted on the surface to form temperature-responsive MOFs; constructing a three-dimensional network carrier through Schiff base crosslinking of the CMC and the CNF; the complex enzyme is loaded on MOFs pore channels and then is embedded in a carrier network together with the black phosphorus quantum dots. The temperature-sensitive MOFs open pore channels to release enzyme when the compost is heated, and the Schiff base network dissociates secondary released enzyme under an acidic condition; the black phosphorus quantum dots promote enzyme activity and strengthen carrier response through a photothermal effect; the compound enzyme contains cutinase, alkaline lipase, neutral lipase, alpha-amylase, saccharifying enzyme, cellulase, laccase and protease, and can synergistically degrade PLA, PBAT and starch-based plastic. According to the invention, dual environment response controlled release, photo-thermal synergistic catalysis and synergistic degradation of the enzyme preparation are realized, and the plastic degradation period is shortened under the composting condition.

The invention relates to a high-efficiency compost decay-promoting microbial inoculum as well as a preparation method and application thereof, and belongs to the technical field of biological agriculture and related industries. The microbial agent is prepared from the following bacterial strains: bacillus licheniformis DY-1, bacillus massiliensis MS, bacillus aryabhattai MB and gas-producing paenibacillus XWS-70; the viable count of each strain is greater than or equal to 5 * 10 < 8 > CFU / g; the total viable count of the microbial inoculum is greater than or equal to 109 CFU / g. The preparation method comprises the steps of strain activation, strain amplification culture, strain powder preparation and strain compounding. The invention relates to application in rapid maturing and composting of organic wastes. The invention has the following advantages: no antagonism is generated among the four strains, the degradation of cellulose can be obviously accelerated, and the degree of humus is improved.

The invention relates to the technical field of solid waste treatment, in particular to a method for removing antibiotics and resistance genes in aerobic composting of chicken manure. Comprising the following steps: adding a composting auxiliary material into chicken manure to enable the carbon-nitrogen ratio to be (25-30): 1, and adjusting the initial moisture content to 55-65% to obtain an initial composting material; adding persulfate and zero-valent iron into the initial compost material, and uniformly mixing; loading the mixed material into a container for composting; during the composting period, stirring is performed regularly, and the aerobic composting time is 30-40 days. The method has the advantages that the persulfate advanced oxidation technology and the aerobic composting technology are combined, the potassium persulfate and the zero-valent iron are added to serve as the aerobic composting additive, the zero-valent iron can continuously activate the potassium persulfate, persulfate free radicals and hydroxyl free radicals are generated, and removal of antibiotics and antibiotic resistance genes is promoted; high-concentration oxytetracycline, sulfamethoxazole and ciprofloxacin in the chicken manure are effectively removed; and the abundance of antibiotic resistance genes with high risk levels is obviously reduced.

The invention relates to the technical field of agricultural wastes and microorganisms, in particular to a complex microbial inoculant for high-temperature composting and rapid decomposition of livestock and poultry manure and straw cellulose and a preparation method of the complex microbial inoculant. The compound microorganism bacterial liquid comprises streptomyces thermocarbonic oxide, bacillus stearothermophilus, bacillus subtilis, bacillus licheniformis, phanerochaete chrysosporium, trichoderma viride and aspergillus niger, and the bacterial liquid carrier is obtained by compounding modified charcoal and modified sepiolite through amidation reaction. According to the complex microbial inoculant provided by the invention, through the synergistic effect of the seven functional complementary microbial strains and the special three-dimensional reticulate carrier, rapid decomposition of high-temperature compost of livestock and poultry manure and straw cellulose is realized.

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 relates to bacillus amyloliquefaciens which is classified and named as bacillus amyloliquefaciens LDB1, the preservation number of the bacillus amyloliquefaciens is CCTCC No: M 20231897, and the preservation date is October 16, 2023. The invention relates to application of bacillus amyloliquefaciens in citrus waste compost. The invention relates to a microbial agent, which comprises bacillus amyloliquefaciens LDB1, bacillus amyloliquefaciens, bacillus subtilis and bacillus velezensis. The invention relates to application of a microbial agent in citrus waste compost. The method has the beneficial effects that lignin peroxidase, laccase and manganese peroxidase can be produced, good lignin degradation capability is achieved, degradation of lignocellulose in citrus waste compost can be effectively promoted by matching with other strains, the degradation rates of hemicellulose, cellulose and lignin are 33.8%, 36.5% and 38.5% respectively, and the method is suitable for industrial production. The strain and the microbial inoculum thereof have important application value in the aspect of recycling of high-lignin fiber organic wastes.

The invention relates to the technical field of component monitoring, and discloses a compost fermentation process material component intelligent monitoring method comprising the following steps: collecting compost process environment data and compost process material component data in a compost process, and carrying out thermophilic bacteria metabolic activity on-line prediction to obtain a flora metabolic activity index; receiving the composting process environment data, the composting process material component data and the flora metabolism activity index by using the lightweight material component inversion model, and generating an optimal material component ratio; and comprehensively adjusting the material components in the composting fermentation process by using the optimal material component ratio. According to the method, environmental data and material component data in the composting process are collected in real time, the metabolic activity index of thermophilic bacteria is predicted on line, the optimal material component proportion is generated on the basis of a lightweight material component inversion model in combination with the environmental data, the material component data and the metabolic activity index, and the material components in the composting fermentation process are comprehensively adjusted, so that the composting fermentation efficiency is improved. Therefore, the composting effect is optimized.

The invention provides a soil conditioner as well as a preparation method and application thereof. The soil conditioner provided by the invention is prepared from the following raw material components in parts by weight: 35 to 45 parts of straw biochar, 55 to 65 parts of biological excrement, 0.01 to 0.5 part of cellulose degradation compound bacteria, 1 to 5 parts of nano silicon dioxide and 3.5 to 4.5 parts of bovine serum albumin. The soil conditioner provided by the invention is good in composting quality, high in composting efficiency, environment-friendly and suitable for industrial production.

The invention provides a method for intensively removing antibiotic resistance genes in a composting process, and belongs to the technical field of solid waste treatment. The method comprises the following steps: performing aerobic composting on compost materials, and when the temperature in a compost body is reduced to 38-42 DEG C, inoculating a microbial preparation; the microbial preparation is a microbial agent with a function of promoting degradation of organic matters. Based on the principle that a microbial preparation is inoculated in a compost cooling period (38-42 DEG C), a microbial community structure is changed, and ARGs host bacterium proliferation is effectively inhibited, the effect of strengthening removal of resistance genes in the compost process is remarkable, operation is easy and convenient, control and implementation are easy, secondary pollution cannot be caused in the whole process, and the method is suitable for industrial production. The method has a wide prospect of popularization and application in a large range.

The invention provides cow dung compost fermentation equipment and a cow dung compost fermentation method. The method comprises the following steps: determining a compost gap of a cow dung material in each fermentation stage according to the stage density of each fermentation stage and the volume of all cow dung materials; performing regression prediction on the fermentation effect of the cow dung material through microbial activity in composting fermentation and each composting gap to obtain the effective fermentation amount of the cow dung material; determining the porosity gradient of the cow dung material in each composting depth interval according to each composting gap and the stirring frequency of the cow dung material, and further performing trend extrapolation on the stirring gain of the cow dung fermentation effect by all the porosity gradients to obtain the stirring effect of composting fermentation; according to the effective fermentation amount and the stirring effect, the composting maturity of the cow dung material after composting fermentation is determined, and the stirring frequency of the cow dung material in each fermentation stage is subjected to self-adaptive adjustment based on the composting maturity. Based on the scheme, the stirring frequency of the cow dung material in each fermentation stage can be adaptively adjusted.

The invention belongs to the technical field of microorganisms, and particularly relates to bacillus amyloliquefaciens with high H2O2 yield and application of the bacillus amyloliquefaciens. According to the bacillus amyloliquefaciens C-50-11, H2O2 can be continuously generated in the high-temperature period of compost, H2O2 free radicals can oxidize and decompose complex organic matter to promote humus condensation in a mediated mode, the content of humus in the compost in the high-temperature period is further effectively increased, and compared with the content of humus in uninoculated compost, the content of the humus after inoculation is increased by 20% or above. According to the method disclosed by the invention, chemical degradation is realized by combining an endogenous H2O2 strengthening effect of thermophilic bacteria and utilizing an oxidizing agent generated by organisms, so that the condition of a high-temperature period of compost is fully utilized, and a new method way is provided for increasing the content of humus in the compost.

The invention belongs to the field of microbial preparations, and particularly relates to a complex microbial inoculant for promoting microbial quorum sensing and application of the complex microbial inoculant in compost. The composite microbial agent comprises pseudomonas A3 and paenibacillus polymyxa 21-2, and the preservation number of the pseudomonas A3 is CCTCC (China Center for Type Culture Collection) NO: M20251394. The pseudomonas A3 can express key genes such as rhlI and lasI of a gram-negative bacteria AHL quorum sensing system and signal molecules of the key genes, and the paenibacillus polymyxa 21-2 can express luxS genes of a gram-positive bacteria AI-2 signal system and signal molecules DPD of the luxS genes. In the pig manure compost, the complex microbial inoculant is added, so that the expression of AI-2 and AHLs system related genes in the compost and the content of signal molecules DPD are remarkably improved, the microbial population sensing process of the compost is promoted, finally, the compost temperature is increased by about 6 DEG C, the compost carbon-nitrogen ratio is reduced, and the compost maturity is promoted.

The invention discloses a residual sludge resource utilization method and a method for preparing amino acid liquid fertilizer, and the method comprises the following steps: 1) taking residual sludge as a compost raw material and plant straw as an auxiliary material, mixing to obtain an initial compost substrate, and carrying out aerobic composting; 2) taking compost products in the middle and later periods of the high-temperature period of compost, drying, sieving, grinding, adding a Ca (OH) 2 solution into the ground compost products, mixing, then shaking for 30-120 minutes, carrying out solid-liquid separation, and taking liquid to obtain the amino acid liquid fertilizer; and continuously composting the remaining solid substances, and using the solid substances for land utilization after composting is finished. The amino acid liquid fertilizer is prepared from municipal sludge and straw compost, resource recycling is economically and effectively conducted on amino acid in the amino acid liquid fertilizer, the prepared amino acid liquid fertilizer is rich in amino acid variety and higher in amino acid content, the needed time is short, energy consumption is reduced, and the production cost is reduced. And a green way is provided for safe treatment and high-value recycling of the residual sludge of a sewage treatment plant.

The invention discloses a continuous turning and discharging compost fermentation device and a treatment method thereof, and belongs to the technical field of compost ferment.The continuous turning and discharging compost fermentation device comprises a compost fermentation tank, and a compost feeding mechanism, a fermentation assisting mechanism and a continuous collecting mechanism are sequentially arranged on the compost fermentation tank from top to bottom. Through cooperation of the feeding hopper and the collecting hopper, a continuous feeding and discharging mechanism is constructed, and after being covered by bacterial powder in the dust box, an input new material is mixed with a semi-cured material to form a strain relay transmission mode, so that the operation efficiency of the compost fermentation tank is effectively improved, the material turning and discharging continuity of the compost fermentation tank is improved, and the labor intensity of workers is reduced. And external air introduced through the ventilation window can reduce the temperature gradient of the semi-finished fertilizer and preheat the newly fed material by using the waste heat of the pile body, so that the overall energy consumption of the device is reduced, the inactivation of mesophilic flora due to local overheating is avoided, and the activity of the fermentation bacterial colony in the fermentation process is remarkably improved.

The invention provides a method for realizing rapid composting based on prediction and reverse adjustment, which comprises the following steps: 1) carrying out Meta analysis, comprehensively judging eight maturity indexes inside and outside a pile body, and providing an optimized data set for establishing an optimal prediction model for machine learning; 2) testing the performance of the model in a real scene, and collecting data of eight indexes; 3) utilizing Python to integrate prediction and reverse adjustment in the charcoal composting process into the optimal prediction model, and setting upper and lower limit values of process indexes in a thermophilic period, a high-temperature period and a cooling period; 4) inputting the collected eight index data into a model fusing prediction and reverse adjustment in the biochar composting process, and optimizing upper and lower limit values of process indexes in three periods; and 5) finally verifying the composting days based on prediction and reverse adjustment in the charcoal composting process in a real scene experiment so as to realize rapid composting. According to the method, the multi-target prediction model is established, different indexes of compost can be rapidly predicted, and the cost and time of manual determination are reduced.

The invention discloses a saline-alkali soil improvement and disease resistance double-effect controlled release fertilizer and a preparation method thereof. The fertilizer comprises 18-22% of biochar, 12-18% of furfural residues, 8-12% of cow dung compost and 6-10% of potassium humate. 5-7% of aluminum sulfate, 4-6% of sulfur and 3-5% of zeolite; the microbial inoculum comprises the following components in percentage by weight: 1.5 to 2.5 percent of saline-alkaline bacillus, 0.8 to 1.2 percent of bacillus subtilis and 0.8 to 1.2 percent 8-12% of a sodium polyacrylate coating, 4-6% of a sulfur coating and 1-3% of polyglutamic acid; 0.8 to 1.2 percent of humic acid chelated iron, 0.8 to 1.2 percent of algal polysaccharide and 0.8 to 1.2 percent of urease inhibitor; 0.8 to 1.2 percent of zinc sulfate, 0.5 to 1.0 percent of manganese sulfate and 0.5 to 1.0 percent of borax. The fertilizer can reduce the pH and conductivity of soil, increase the organic matter content of the soil and effectively improve the physicochemical properties of the soil, meanwhile, by adding the microbial agent, the disease resistance of crops can be effectively improved, the morbidity and disease index of the crops can be reduced, and nutrient release of the fertilizer has a sustained and controlled release characteristic; the initial release rate and the cumulative release rate of nitrogen are both lower than those of common chemical fertilizers, and the cumulative release rate of nitrogen is moderate within 60 days, so that the nutrient requirements of crops in different growth stages can be met.

The invention relates to the technical field of organic waste composting, in particular to a livestock and poultry manure composting nitrogen conservation method and application thereof.The livestock and poultry manure composting nitrogen conservation method comprises the following steps that the temperature, humidity and ventilation environment of composting materials are accurately controlled, nitrogen loss in the composting process is monitored in real time, nitrogen conversion and storage are optimized through an algorithm, and the composting efficiency is improved; calculating variation amplitudes of different stages, adjusting a compost body environment in real time, monitoring and evaluating nitrogen loss through a support vector machine model to ensure that the nitrogen loss does not exceed a set standard, and dynamically adjusting temperature, humidity and a ventilation system of compost. Addition of bacillus and adjustment of oxygen concentration and humidity jointly act on optimization of microbial activity, the nitrogen conversion condition is improved, through combined application of a convolutional neural network and a long-short-term memory network, the influence of the activity of microbial populations on nitrogen conversion is analyzed, a microbial area with high activity is selected, and the nitrogen conversion efficiency is improved. The storage and conversion efficiency of nitrogen is improved, the fertilizer efficiency of compost is ensured, and the pollution to the environment is reduced.

The invention belongs to the technical field of microbial resource development and straw biological decomposition. The invention discloses cold-resistant pseudoarthrobacter psychrotolans CKON-4, and the preservation number of the cold-resistant pseudoarthrobacter psychrotolans CKON-4 is CGMCC (China General Microbiological Culture Collection Center) No.29378. The cold-resistant pseudoarthrobacter psychrotolans CKON-4 has the advantages that the preservation number The strain CKON-4 is preserved in the China General Microbiological Culture Collection Center (CGMCC) on December 25, 2023, the China General Microbiological Culture Collection Center is called CGMCC for short, the address of the China General Microbiological Culture Collection Center is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number of the strain is CGMCC No.29378. The strain disclosed by the invention has very high lignocellulose degradation activity, and the decomposition rate of straws can be remarkably improved; the strain is separated from rice field soil, can grow in the pH value range of 5-9 and the temperature range of 4-37 DEG C, can tolerate the salt concentration of 10%, and is a bacterium with wide pH application range, salt resistance and cold resistance. The strain can play an important role in lignocellulose degrading enzyme production, straw biological decomposition and compost fermentation.

Leaf-branch compost cutinase (LCC) and other cutinase mutants with activity over ranges of temperature and pH are provided.

The invention discloses a method for improving drought tolerance and yield of wheat through combined application of compost and sodium selenite, and belongs to the technical field of agricultural planting. According to the method, wheat is planted after compost is applied to soil, and when drought stress occurs, a sodium selenite solution is sprayed to wheat leaves, so that oxidative stress indexes such as MDA, H2O2 and O2 <-> of wheat can be remarkably reduced, and the activity of antioxidant enzymes such as SOD, POD, CAT and APX can be improved; physiological indexes such as chlorophyll a, chlorophyll b, total chlorophyll, carotenoid, protein, soluble sugar and proline of wheat leaves are improved, growth and yield related traits of the wheat are improved, and finally the drought resistance and yield of the wheat are improved. The compost is prepared by taking 50%-55% of corn straw, 10%-20% of flue-cured tobacco straw, 20%-25% of rice straw, 10%-15% of livestock manure and 0.1%-1% of bacillus subtilis as raw materials, adding organic wastewater or tap water, mixing, composting and fermenting.

The invention provides an organic-inorganic composite conditioner for improving a soil structure. Comprising the following raw materials in parts by mass: 100-150 parts of calcium, 20-50 parts of magnesium, 10-20 parts of polyglutamic acid, 0.5-2 parts of zinc, 2-4 parts of boron, 2-4 parts of iron, 100-150 parts of organic nitrogen, 150-200 parts of composite organic natural polypeptide amino acid, 50-70 parts of seaweed boron molybdenum, 50-80 parts of phosphorus calcium zinc liquid, 20-50 parts of seaweed calcium magnesium boron iron zinc and 100-120 parts of a plant nutrition preparation. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of high phosphorus and high potassium, 150-200 parts of organic waste compost, 50-80 parts of a synergist and 50-100 parts of a functional microbial agent. Through a unique chelation technology, polyglutamic acid and calcium and magnesium ions are fully fused to form an efficient medium trace element water-soluble fertilizer, calcium and magnesium are directly absorbed by a root system after flushing application, the calcium utilization rate is improved by 50% or above, and due to the fact that polyglutamic acid carries strong negative charges, fertilizer loss caused by rainwater leaching is effectively reduced, and the yield of the fertilizer is improved. And the water-retaining and fertilizer-retaining functions are more obvious when the fertilizer is used in sandy loam.

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 provides a microbial agent compound fertilizer for sandy land and a preparation method thereof, and relates to the technical field of compound fertilizers. The invention relates to a microbial inoculum compound fertilizer for sandy land. The soil conditioner is prepared from the following raw materials in parts by mass: 40 to 60 parts of compost, 0.3 to 0.8 part of nitrogen-fixing bacteria, 0.3 to 0.8 part of phosphate solubilizing bacteria, 0.3 to 0.8 part of potassium bacteria, 8 to 12 parts of charcoal, 8 to 12 parts of zeolite, 9 to 13 parts of perlite, 4 to 6 parts of vermiculite, 1 to 3 parts of seaweed extract, 2 to 4 parts of humic acid, 1 to 7 parts of waste cellulose nanocrystals, 30 to 40 parts of insect debris, 0.3 to 3 parts of nano carbon dots, 3 to 9 parts of lime and 8 to 15 parts of wood fiber. The compound fertilizer disclosed by the invention not only is rich in various necessary nutrient elements, but also has a good slow release effect and a good soil improvement function, can effectively improve soil fertility and promote plant growth through the action of various biological strains, and also has the characteristics of environmental protection and no pollution by utilizing the waste cellulose nanocrystals and the insect remains.

The invention discloses a strain of Lysinibacillus loembei SCAUH16 and application thereof, and belongs to the field of microorganisms, the strain is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC NO: 65794. According to the bacterial strain, residues obtained after treatment of pigs died of illness serve as a separation source, the bacterial strain with the activity of producing protease and lipase under the high-temperature condition is separated and screened out, the bacterial strain can rapidly degrade the residues obtained after treatment of the pigs died of illness, and the degradation rate reaches 61.37%. Furthermore, the residues obtained after the pigs died of illness are converted are used as main raw materials for aerobic composting fermentation, and after the strain is added, the temperature of a compost body is increased, the material conversion is accelerated, the composting time is shortened, the decomposition of the compost is promoted, the excessive loss of nutrients in the composting process is reduced, the nutrients in the compost material are kept, and the quality of the compost is improved; the method has a good application prospect in the aspect of resource utilization of agricultural wastes.

The invention discloses a method for accelerating straw composting by utilizing magnetite and compound microorganisms to drive biological advanced oxidation, and belongs to the technical field of efficient composting of agricultural organic solid wastes. The method comprises the following steps: (1) uniformly mixing straws and excrement as a compost body, adjusting the C / N ratio and the water content, adding magnetite, a bacillus subtilis liquid and a crushed white rot fungus liquid, and putting the mixture into a composting device; (2) intermittent aeration is carried out, the temperature is 28-32 DEG C, and the composting period is 40-50 days. According to the composting method, through intermittent aeration, controllable aerobic conditions and anoxic conditions are formed in a compost body, under the anoxic conditions, ferric iron is subjected to dissimilatory iron reduction to generate ferrous iron, and under the aerobic conditions, compound microorganisms reduce oxygen through extracellular electron transfer to form hydrogen peroxide, so that the composting effect is improved. Divalent iron and hydrogen peroxide are subjected to a Fenton-like reaction to generate hydroxyl free radicals with high oxidizing property, so that decomposition of straw lignocellulose is accelerated, and the composting efficiency of compost is improved.

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 relates to the technical field of compound microbial fertilizers, in particular to a biochar-based compound microbial fertilizer for improving saline-alkali soil. The organic fertilizer comprises the following components in parts by weight: 30-50 parts of straws, 10-15 parts of compound microbial capsules, 20-40 parts of compost and 5-10 parts of humic acid. A multi-strain mixture composed of azotobacter chroococcum, pseudomonas and bacillus mucilaginosus is added, and comprehensive improvement of the saline-alkali soil is achieved; the azotobacter chroococcum can convert nitrogen in the air into nitrogen which can be utilized by plants, so that the dependence on chemical fertilizers is reduced; pseudomonas has efficient phosphate solubilizing capacity, and bacillus mucilaginosus can strongly solubilize potassium, so that the soil fertility is comprehensively improved. Composite microorganisms and polylactic acid are subjected to an interfacial polymerization reaction to prepare microcapsules, dopamine hydrochloride is utilized to form a coating on the surfaces of the microcapsules in a self-assembly mode, physical protection can be provided for the microorganisms, the survival rate of the microorganisms in a severe environment is increased, and the acting time of the microorganisms in soil is prolonged.