1706 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 bacillus velezensis and application thereof in preparation of a water-soluble microbial agent, and belongs to the technical field of microorganisms. The bacillus velezensis has the effects of producing exopolysaccharides, promoting the formation of soil aggregates, degrading abamectin, hydrolyzing protein, producing indoleacetic acid, promoting the growth of tomato plants and promoting the enzyme activity of tomato rhizosphere soil enzyme. The fertilizer not only has the effects of improving the soil aggregate structure and promoting the growth of tomato plants, but also can accelerate the temperature rise of the abamectin fermentation waste residue compost, prolong the high-temperature period and shorten the compost period, and is beneficial to promoting the harmless treatment and resource utilization of the abamectin fermentation waste residue.

The invention discloses a tea fertilizer preparation method based on microbial fermentation, and particularly relates to the field of tea compost, tea waste is crushed and wetted, and a nitrogen source and trace elements are added to optimize the carbon nitrogen ratio, so that a foundation is laid for the fermentation process; then, selected microbial strains are proliferated and purified, and the treated waste materials are uniformly inoculated with the selected microbial strains; in the fermentation process, the stability of fermentation conditions is ensured by controlling the temperature and the humidity; the tannin concentration and the pH value are monitored in real time, when the tannin concentration exceeds a preset value and the pH deviates from a normal range, the abnormal state of tannin degradation is evaluated and identified through a reaction activity index, an interference source is positioned through a sparse principal component analysis algorithm, and noise signals are removed; and after the interference source is positioned, the fermentation condition is adjusted in a targeted manner, so that the tannin degradation efficiency reaches the expectation, and the compost is maturely fermented and meets the fertilizer use standard.

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 discloses a PBAT (poly (butylene adipate-co-terephthalate)) composite material containing nano encapsulation enzyme as well as a preparation method and application thereof. The PBAT composite material is prepared from the following components in percentage by mass: 50 to 90 parts of PBAT resin, 0 to 40 parts of filler and 0.01 to 20 parts of nano encapsulation enzyme. The preparation method comprises the following steps: firstly synthesizing the nano encapsulation enzyme, and then mixing the nano encapsulation enzyme, the PBAT resin and the filler, extruding, and carrying out hot press molding or curtain coating and film blowing. The method is characterized in that 1) the nano encapsulated enzyme has more excellent thermal stability than other immobilized enzymes, and the biological activity of the enzyme can be effectively maintained after high-temperature heat treatment; and 2) as the biological activity of the enzyme is effectively reserved, the PBAT composite material containing the nano encapsulated enzyme has higher environmental degradation speed than pure PBAT or a PBAT composite material containing free enzyme, and the environmental degradation speed can be reflected in various conditions such as aqueous solution and industrial compost.

The invention discloses a complex microbial inoculant, which is prepared from bacillus NJAU-190 and pseudoxanthomonas NJAU-273, wherein the bacillus NJAU-190 and the pseudoxanthomonas NJAU-273 are used The invention also discloses an application of the fertilizer in straw compost. The bacillus NJAU-190 is beneficial to temperature rise in the earlier stage of composting, the pseudoxanthomonas NJAU-273 is beneficial to temperature rise in the later stage of composting, the two strains are compounded to promote temperature rise in the whole composting period, the composting efficiency is improved, and the composting conversion rate is increased. Compared with the treatment without inoculation of the microbial inoculum, the treatment with inoculation of the NJAU-190 + NJAU-273 composite microbial inoculum effectively promotes the temperature rise of the compost body, accelerates the composting process, significantly improves the germination index of the compost product, and significantly increases the total nutrient of the compost product. Compared with the treatment by inoculating the NJAU-190 microbial inoculum or the NJAU-273 microbial inoculum, the treatment by inoculating the NJAU-190 + NJAU-273 composite microbial inoculum can also significantly increase the total nutrient of the compost product.

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 compost maturity determination method and device and a medium, and relates to the technical field of biomass fermentation composting, the method comprises the following steps: sequentially carrying out pretreatment and characteristic wave band extraction treatment on real-time spectral information of compost to be evaluated to obtain real-time characteristic spectral data; the real-time total organic carbon content of the to-be-evaluated compost is obtained based on the total organic carbon content detection model, then the real-time organic matter reduction rate is determined, the real-time total nitrogen content of the to-be-evaluated compost is obtained based on the total nitrogen content detection model, and then the real-time carbon-nitrogen ratio reduction rate is determined. And inputting the real-time organic matter reduction rate and the real-time carbon-nitrogen ratio reduction rate into the compost maturity determination model to obtain a compost maturity detection result. According to the application, the spectral information characteristic wave band is extracted, and the total organic carbon content detection model, the total nitrogen content detection model and the compost maturity determination model are constructed, so that the compost maturity detection result is obtained. The efficiency and the accuracy of whether the compost is thoroughly decomposed can be improved.

The invention discloses a method for preparing a solid waste-based soil conditioner by using microorganism mineralized coal gangue, which comprises the following steps: mineralizing a coal gangue compost substrate by adopting a microorganism mineralization technology to form a coal gangue solid waste soil conditioner; the method comprises the following steps: performing an aerobic composting fermentation test by using coal gangue particles which are crushed until the particle size is 18-50 meshes, carbonate mineralizing bacteria, organic solid wastes and an efficient solid composting fermentation inoculant, and then mineralizing a compost substrate by using the mineralization effect of microorganisms. According to the method, the organic nutrients of the artificial soil are increased, and the utilization efficiency of a carbon source in the gangue is activated and improved by adopting a high-efficiency composting fermentation inoculant and a solid aerobic composting fermentation technology. The adsorption performance on heavy metals is improved. In addition, the problems of coal gangue accumulation and soil improvement are solved at the same time, organic solid waste is used as the raw material of the soil conditioner, and double-waste utilization of the coal gangue and the organic solid waste is achieved.

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 a full-biodegradable polyester composite material and a heat shrink film thereof. Corn starch, PBAT and PLA are used as main raw materials, glycerin, water and polyethylene glycol-6000 are used as composite plasticizers, B225 is used as an antioxidant, and solid paraffin and oleamide are used as lubricants. The preparation method comprises the following steps: adding corn starch, glycerol, water, PEG-6000, B225, solid paraffin and oleamide into a high-speed mixer, stirring to obtain plasticized corn starch, adding PBAT and PLA into the high-speed mixer, mixing with the plasticized corn starch, stirring, discharging, putting into an extruder, extruding and granulating to obtain a full-biodegradable polyester composite material, and extruding and blowing to obtain the thermal shrinkage film. The polyester composite material prepared by the invention can be biodegraded under the condition of matured compost, the biodegradation rate is 91.22%, the relative biodegradation rate is 96.55%, and products are carbon dioxide and water and meet the GB / T 41010-2021 standard requirements.

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 belongs to the technical field of organic fertilizer preparation, and provides a manure straw turning and composting control method and system. The method comprises the following steps: receiving a fertilizer expected preparation time length and a fertilizer property parameter range combination input by a user, and screening according to the fertilizer expected preparation time length to obtain a corresponding pile-turning water-logged compost process; performing parameter measurement on the mixed raw material of the excrement and the straws to be used to obtain raw material parameters; inputting the expected preparation duration of the fertilizer, the turning composting process, the raw material parameters and the fertility parameter range combination into the process parameter optimization model, and predicting to obtain an optimal process parameter combination; and preparing the organic fertilizer from the to-be-used mixed raw materials according to the optimal process parameter combination. According to the process parameter optimization model, the optimal process parameter combination can be obtained through automatic analysis according to the expected fertilizer preparation duration and the fertilizer property parameter range combination required by the user, so that the personalized preparation requirements of the user are met.

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 discloses an intelligent monitoring method and system for a composting process, relates to the technical field of composting, and aims to solve the problem that the fermentation effect of compost and the quality of a final product are affected due to hysteresis and inaccuracy of manual monitoring of the composting process. The method comprises the following steps: S1, data acquisition: acquiring key parameter data in a composting process, wherein the parameter data comprises temperature, humidity, pH value, oxygen concentration, organic carbon content, total nitrogen content and total phosphorus content; s2, data transmission: transmitting the key parameter data obtained in the step S1; and S3, data processing and analysis: receiving and storing the key parameter data in the step S2, processing and analyzing the received information, and calculating key indexes in the composting process, the key indexes including a compost maturity index and a compost efficiency index. The method has the advantages that the compost state can be accurately mastered, and the control strategy can be timely 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 utility model discloses an edible mushroom compost stirring device, and particularly relates to the technical field of edible mushroom compost, the edible mushroom compost stirring device comprises a containing hopper, a stirring barrel and a mounting plate, the stirring barrel is arranged at the top of the containing hopper, the mounting plate is mounted at the top end of the stirring barrel, and a center rod is arranged in the stirring barrel in a penetrating manner; an adjusting cylinder is sleeved with the top end of a stirring cylinder used for containing, the interior of the adjusting cylinder is closed, connecting blocks are fixedly connected to the outer walls of the two sides of the top ends of the stirring cylinder and the adjusting cylinder, and the bottom end of the stirring cylinder is slidably sleeved with a bottom plate; fixing plates are fixedly connected to the two ends of a mounting plate used for supporting, a plurality of electric push rods are arranged in the two ends of the mounting plate in a penetrating mode, and the bottom extending ends of the electric push rods are fixedly connected with connecting blocks. The stirring device has the advantages that the stirring operation does not need to be paused during discharging, the accommodating size is convenient to adjust, and the stirring device is suitable for stirring different materials.

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.

Various embodiments are described herein for an apparatus that implements one or methods for producing compost. The method may include receiving waste in a composting apparatus, the waste having a first moisture content; pre-treating the waste to produce pre-treated waste; storing the pre-treated waste into a storage chamber for a pretreatment time period to produce stored waste; and composting the stored waste in a compost chamber to produce a batch of output compost having a second moisture content, wherein the second moisture content is less than the first moisture content.