563 results about "Organic solid waste" patented technology

The invention belongs to the field of microbial electrochemistry and solid organic waste recycling, and discloses a microbial electrosynthesis enhanced solid wastewater hydrolysis and anaerobic digestion biogas high-value utilization system coupling microbial electrosynthesis, organic solid waste electrochemical-biological synergistic hydrolysis oxidation and anaerobic digestion. The system comprises a cathode chamber and an anode chamber which are separated by an ion exchange membrane, an electrochemical driving device and an anaerobic digestion unit communicated with the anode chamber. And the cathode chamber is provided with a cathode electrode and an anaerobic acetic acid production microbial system and is communicated with biogas generated by anaerobic digestion, so that carbon dioxide in the biogas is reduced at the cathode to generate acetic acid and methane-enriched gas is output. The anode chamber is provided with an anode electrode, organic solid waste and a hydrolytic microorganism system are added, electrochemical-biological synergistic hydrolytic oxidation of the organic solid waste and hydrolysates of the organic solid waste is used as an anode reaction, oxygen evolution is inhibited, and oxygen transmembrane migration is reduced; and the hydrolysate in the anode chamber flows into the anaerobic digestion unit to produce biogas, so that the integrated operation of solid wastewater hydrolysis and biogas upgrading is realized.

The invention discloses a horizontal solid organic waste pyrolyzing furnace with a multi-stage shearing structure, belongs to the technical field of pyrolyzing furnaces, and aims to improve a traditional single straight-through furnace body structure and divide the whole pyrolyzing furnace into a pyrolyzing part and a preheating part. A shearing discharging column in a preheating part is used for carrying out continuous batch grinding smashing and preheating treatment on organic solid waste, the material granularity is reduced, the pyrolysis speed is increased, in the main pyrolysis link, a double-barrel furnace type structure composed of a pyrolysis barrel and a pyrolysis part is arranged, and under the rotation effect of multiple sets of shearing plates, the pyrolysis barrel and the pyrolysis part can be used for carrying out pyrolysis on the organic solid waste. Small-particle solid waste is in a continuous'upward turning-downward scattering 'multi-stage shearing state, materials are conveyed to the end part of the pyrolysis part along the inclined surface of the shearing plate in the upward turning process, and in the process, generated waste gas, carbon residues and pyrolysis oil are continuously separated through an exhaust passage, a residue discharge opening and an oil discharge hole respectively; and the heat-conducting property in the furnace is improved.

The invention relates to the field of waste polymer material recovery and resource utilization, and particularly discloses a method for realizing ultra-fast recovery of fluorine-containing organic waste through a self-propagating reaction. According to the method, liquid sodium-potassium alloy (NaK) is used as a reaction medium, under the protection of inert atmosphere, fluorine-containing organic solid waste is in contact with NaK, electron transfer is induced through mechanical friction, C-F bond breakage is catalyzed and induced, a defluorination reaction is triggered, reaction heat is released, a self-propagating combustion reaction is initiated, and finally, carbon materials and metal fluoride products are recycled. The method is rapid in reaction, does not need external heating, can efficiently recover fluorine-containing waste and prepare high-added-value materials, and is suitable for green large-scale treatment of waste fluoropolymers and preparation of functional materials.

The invention discloses a modular combined organic solid waste horizontal aerobic fermentation tank, and relates to the technical field of fertilizer manufacturing, one side of a first end cover mechanism is sequentially connected with at least one group of fermentation mechanism, one side of the outer part of each group of fermentation mechanism is provided with a docking mechanism, and each fermentation mechanism comprises a fermentation tank, a heating cavity, a circulation insertion frame and an insertion groove. The modular combined design is adopted, the core fermentation unit is based on multiple fermentation mechanisms, the number of the fermentation mechanisms can be flexibly increased or decreased through the movable frame according to the actual treatment capacity requirement of organic solid waste, and the whole set of equipment does not need to be replaced; according to the invention, energy waste caused by idle large tanks during small and medium-scale treatment can be avoided, additional pipelines and control coordination cost for parallel connection of multiple small tanks during large-scale treatment can be saved, the system is adaptive to treatment scenes of organic solid wastes of different types and different scales such as municipal sludge, agricultural straws, kitchen garbage, livestock manure and the like, and the universality and application economy of equipment are improved.

The invention provides a battery negative electrode high-valued regeneration system based on multi-source solid waste. Heat energy and electric energy generated by a power generation module can be efficiently received and stored through a heat and energy storage module. The system utilizes the electric energy to drive the reaction module to perform low-temperature pyrolysis on the multi-element organic solid waste to generate a carbon-based negative electrode material precursor. And then, the carbon-based negative electrode material precursor and the waste negative electrode material are mixed, and the reaction module further adopts a flash Joule heat treatment technology to realize high-valued regeneration of the waste material, so that the recycling rate of resources is effectively improved, and the environmental pressure is reduced. In addition, the system further burns and recovers volatile component gas generated by the reaction module through a burner, and efficient cyclic utilization of energy is achieved. According to the method, the sustainability of the whole system is improved by utilizing renewable energy sources and multi-element organic solid waste, an innovative thought is provided in the aspects of waste treatment and energy storage device performance improvement, and good economic and environmental benefits are achieved.

Organic solid waste treatment equipment of the technical field of organic solid waste treatment is provided, including a box body, the top of the box body is fixedly connected with a feeding port. When in use, waste is poured into the box from the feeding port, driven by the extended hydraulic rod to move the squeezing plate, pushing the waste towards the drainage groove; the waste is pushed to the filter screen surface by the squeezing plate, squeezed and drained by its pressure, and repeatedly squeezed by the hydraulic rod's extension and retraction to dry, and waste is crushed in the barrel, slides down the plates into the hopper, and then into the conveying pipe. By activating the third motor, the auger flights are driven to rotate, pushing the waste out from the end face of the conveying pipe to complete the discharging.

The invention provides a high-crystallinity modified iron oxide as well as a preparation method and application thereof, and relates to the technical field of organic solid waste treatment. The preparation method comprises the following steps: preparing a precursor MIL-88B by utilizing a hydrothermal method; the precursor MIL-88B is subjected to calcination treatment, and an iron oxide with the MIL-88B as the precursor is obtained; the temperature condition of the calcination treatment is 550-850 DEG C. The high-crystallinity modified iron oxide prepared by the preparation method improves methane production efficiency and stability, avoids competition of iron reducing bacteria, is stable in long-term operation and low in cost, and has both environmental and economic benefits.

The invention relates to the technical field of waste treatment, and particularly discloses an intelligent environment-friendly organic solid waste resource utilization method and system. Before organic solid wastes enter a crushing mechanism, the organic solid wastes are identified and classified based on a computer vision technology; the mechanical arm is controlled to remove the impurities when it is detected that the impurities exist in the organic solid waste, then the organic solid waste is fed into the smashing mechanism to be smashed, and the smashed powdery waste is dissolved through a dissolving solution; and separating the liquid in which the organic substance is dissolved and the solid powder from which the organic substance is removed. In this way, the overall process of resource utilization of the organic solid waste is effectively optimized, efficient and pure utilization of the organic solid waste is facilitated, and the waste treatment efficiency and the resource utilization quality are improved.

The invention discloses a high-efficiency aerobic fermentation corncob-based biological conditioner and application thereof. Aiming at the common problems of unstable carrier effect, poor environmental adaptability, easiness in inactivation of the microbial inoculum, difficulty in continuously exerting efficacy and the like existing in the existing composting microbial inoculum, the agricultural waste corncob with a porous structure and excellent water-retaining and fertilizer-retaining natural characteristics is pretreated and modified; and the immobilized carrier of the aerobic fermentation inoculant with high activity and high stability is constructed. The carrier matrix can be used for efficiently loading and remarkably improving the expanding culture core aerobic fermentation functional flora to prepare a solid biological conditioner. The corncob-based biological conditioner is applied to the composting process of organic solid wastes, promotes the humification process of organic materials, shortens the composting period, improves the fermentation efficiency of the materials, and effectively improves the resource utilization level of the organic solid 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 belongs to the technical field of organic solid anaerobic digestion, and provides an organic solid waste treatment device and method based on microbial electron transfer intensification. A central electrode and an inner wall electrode are arranged in a cylindrical anaerobic digestion reaction tank, and electron transfer in a system is driven by a voltage-stabilized direct-current power supply; the stirring paddles are arranged on the two sides to strengthen the rheological property and electron transfer capacity of the organic solid waste, and a dispersive conductive material adding system is arranged, so that the resistivity of materials in the tank is further reduced, and an efficient anaerobic digestion electron transfer way is constructed. The bottleneck problems that in the anaerobic digestion process, electron transfer driving force of biological metabolism reaction is insufficient, and transfer ways are lacked are solved, the methane conversion rate of organic solid waste is increased, the methane concentration ratio in biogas is increased, and the method has good application prospects.

The invention discloses a method and a system for efficiently producing short-chain fatty acid by utilizing waste molasses in the sugar industry and municipal sludge through synergistic anaerobic fermentation, and belongs to the technical field of organic solid waste recycling. Waste molasses and municipal sludge are mixed according to a specific ratio, the carbon-nitrogen ratio is optimized to 20-30: 1, trace metal catalysts (Fe < 2 + >, Co < 2 + > and Ni < 2 + >) are added, and two-stage pH regulation (the initial pH is 6.0-7.0, and the later pH is 5.5-6.0) and a medium-temperature (35-37 DEG C) anaerobic fermentation process are combined, so that the yield of short-chain fatty acid is remarkably increased to 5.2-6.8 g COD / L and is increased by 200-300% compared with that of traditional sludge single-substrate fermentation. The method realizes recycling and high-value conversion of the organic solid waste, and has the characteristics of low cost, high acid production efficiency and environmental friendliness.

The invention relates to the technical field of organic solid waste recycling and hydrogen energy, in particular to a hydrogen, electricity and heat co-production system and method for organic solid waste combustion and synergistic gasification. Organic solid waste is divided into high-calorific-value organic solid waste and low-calorific-value organic solid waste based on the calorific value and the water content, the high-calorific-value organic solid waste is used for calcining limestone, and the low-calorific-value organic solid waste is used for gasification; the organic solid wastes with different heat values and water contents are fully digested, and the problem of unstable operation caused by complex components of the organic solid wastes is solved. A three-stage energy gradient utilization module is constructed, and a traditional single power generation and single heat supply mode is innovated into a heat energy, electric energy and hydrogen energy co-production mode. A calcium-based material circulation system is systematically constructed, and hydrogen production-pollution control synergic integration is realized. The method has remarkable economic and environment-friendly benefits, and a solution is provided for high-value utilization of organic solid waste and preparation of green hydrogen.

A strengthening method for aerobic co-compost of kitchen waste anaerobic biogas residues and hermetia illucens feces belongs to the technical field of organic solid waste treatment, and the specific scheme comprises the following steps: step 1, uniformly mixing kitchen waste biogas residues, hermetia illucens feces and auxiliary materials to obtain a mixed material I; step 2, adding tea leaf residues and iron oxide into the mixed material I, and uniformly mixing to obtain a mixed material II, and step 3, carrying out aerobic composting on the mixed material II until the temperature rise period, the high-temperature period, the cooling period and the decomposition period of a compost body are normally completed. On the basis of a biogas residue-fecula aerobic co-composting system, by adding the tea leaf residues and the iron oxide, the content of humus precursor substances is increased, and conversion of the precursor substances to humus is promoted, so that formation of humic acid is facilitated, the fertilizer efficiency and application potential of a composting product are improved, and meanwhile nitrogen loss in the composting process is reduced.

The invention belongs to the technical field of garbage recycling treatment, and discloses organic solid waste heat treatment drying equipment which comprises a drying assembly. Through cooperation of structures such as a flow dividing assembly and a supporting cylinder, a motor drives a threaded conveying rod to rotationally convey waste to the top of a bearing plate through a driving shaft and a bevel gear, the weight of the motor presses the bearing plate to descend, the threaded conveying rod stops rotating, and arc-shaped rods on the edge of an arc-shaped support flatly spread the waste to the top of the bearing plate; the microwave emitted by the magnetron evaporates moisture in the waste, the weight of the waste is gradually reduced, the spring slowly supports the arc-shaped bracket to return to the initial position, the arc-shaped bracket pushes the waste to fall off from the gap between the edge of the bearing plate and the inclined surface of the inner wall of the working box, and the helical gear is located in the notch in the threaded conveying rod again; and in the circulating conveying process, each part of waste can be independently dried, so that the heat treatment efficiency of the device is further improved.

The invention relates to the technical field of soil improvement and remediation, in particular to an acid soil conditioner and a preparation method thereof. The acidic soil conditioner comprises an organic solid waste material and inorganic industrial solid waste, and the mass ratio of the organic solid waste material to the inorganic industrial solid waste is (0.5-1): 1. The organic solid waste material is prepared from the following components in parts by mass: 20 to 40 parts of modified charcoal and 10 to 30 parts of solid waste-based sludge; the inorganic industrial solid waste comprises 5-10 parts of ammonia alkali white mud, 8-15 parts of modified waste glass and 0.5-2 parts of gypsum. According to the acidic soil conditioner provided by the invention, solid wastes are effectively utilized, and meanwhile, the problem that soil acid-base neutralization and Al < 3 + > immobilization cannot be taken into consideration in related technologies is solved.

The invention relates to the technical field of organic solid waste treatment, in particular to a process system for hydrogen production and co-production of biological natural gas from biological crude synthesis gas, which comprises a purification unit, a hydrocarbon regulation unit, an acid removal unit, a methane upgrading unit, a hydrogen recycling and purifying unit and a methane recycling and purifying unit which are connected in sequence. The purification unit is used for removing impurities through pre-impurity removal, compression, dry-process impurity removal and wet-process desulfurization to produce purified synthesis gas and sulfur; the hydrocarbon adjusting unit is pressurized through a centrifugal compressor and adjusts the hydrogen-carbon ratio; the acid removal unit is used for removing acid gas and organic sulfur; the methane upgrading unit is used for converting CO / CO2 into methane through methanation reaction; and the recycling unit purifies hydrogen through pressure swing adsorption and recycles methane by using a membrane separation technology to produce biogas. The problems of low purity and insufficient raw material utilization rate of the traditional process are solved through the circulation process, the co-production of high-purity hydrogen and biogas is realized, and the additional value of resources is improved.

The invention discloses an organic solid waste harmless treatment device and a treatment method thereof, and relates to the technical field of organic waste treatment.The organic solid waste harmless treatment device comprises a crushing tank, and a crushing assembly used for chopping solids is arranged in the crushing tank; the discharging tank is fixedly communicated with the upper portion of the discharging tank, a top cover is fixedly arranged at a port of the top end of the discharging tank, a draining assembly is arranged in the discharging tank, and the draining assembly reduces the water content in solids; and the decomposition tank is located on the side edge of the crushing tank, and a feeding auger used for conveying the chopped solid into the decomposition tank to be decomposed is arranged between the crushing tank and the decomposition tank. According to the organic solid waste crushing device, the draining assembly is additionally arranged above the crushing assembly, so that excessive water contained in the organic solid waste is squeezed out through the draining assembly before the organic solid waste is crushed, and the influence of the water on solid waste crushing processing and the damage degree of the water on the crushing assembly are reduced; and therefore, the working efficiency of crushing processing and the protection property of the crushing assembly can be improved.

The invention discloses a pretreatment method for increasing the yield of anaerobic fermentation methane of a lignocellulose material, and belongs to the technical field of high-efficiency anaerobic fermentation methane production of organic solid waste. The method comprises the following steps: (1) crushing straws; (2) mixing the straw powder and deionized water according to a mass ratio of 1: (19-21), stirring at a rotating speed of 120-180r / min, treating for 22-26h, fully and uniformly mixing, adjusting the pH value of the system to 3.4-3.7, adding 0.08-0.12 wt% of cellulase according to the mass of the straw, and carrying out enzymolysis at 49-51 DEG C for 2-4d to obtain an enzymatic hydrolysate; (3) yeast pre-fermentation: inoculating 4-6% v / v activated angel high-activity dry yeast into the enzymatic hydrolysate in the step (2) for anaerobic pre-fermentation, wherein the pre-fermentation time is 16-20 hours; and (4) anaerobic fermentation for methane production: adding 20-30% v / v of introduction sludge into the fermentation system in the step (3), and carrying out anaerobic fermentation for methane production, wherein the fermentation temperature is 36-38 DEG C. Compared with the prior art, the method has the advantages of being high in adaptability, short in treatment period, good in economic benefit, free of environmental pollution and the like, and has certain guidance and inspiration effects on engineering of producing methane from straw.

The present invention discloses a device and method for thermally converting and recycling glass fibers from waste wind turbine blades, which relates to the technical field of organic solid waste pyrolysis. It solves the technical problems of non - continuous feeding, high energy consumption and product application degradation in existing thermal recovery solutions. The key points of its technical solution are that the pyrolysis unit uses a feed hopper and a screw auger to achieve the thermal decomposition of waste wind turbine blades under continuous feeding, generating pyrolysis oil - gas and pyrolysis solids; the residual carbon oxidation unit further completely oxidizes the residual carbon in the pyrolysis solids to obtain inorganic solids, and collects and separates them through a pneumatic separator to recover clean glass fibers; the oil - collecting and gas - washing unit and the inorganic solid collection unit recover the waste heat of the products to reduce the energy consumption of the device, thereby realizing the complete separation of the resin matrix and glass fibers of waste wind turbine blades and recovering glass fibers, reducing the energy consumption of waste wind turbine blade thermal recovery, reducing secondary pollution and improving the product quality.

The present disclosure relates to a process and device for preparing a powdery upgraded fuel by means of thermal conversion of organic solid waste. The thermal conversion comprises two modes, i.e., roasting and pyrolysis. The process for preparing a powdery upgraded fuel by means of thermal conversion of organic solid waste comprises a thermal conversion crushing step, a vibrating thermal conversion screening step, a fluidifying thermal conversion sorting step, and a screw lifting ball-milling thermal conversion step. In the present disclosure, thermal conversion, crushing and separation treatment can be performed on an organic solid waste material at the same time, the thermal conversion process and the crushing and separation process are coupled, coordinated and mutually reinforced, and therefore the thermal conversion reaction rate and conversion efficiency of organic solid waste can be significantly improved, and a powdery thermally-converted upgraded fuel is obtained; when the organic solid waste contains a relatively large amount of metal or non-metal inorganic substances, a variety of sorted products including the metal or non-metal inorganic substances can be recovered at the same time; and particularly, the obtained upgraded fuel is in a powdery state, is suitable for being used as a gasification raw material for a powder boiler and / or an entrained-flow bed, and has good value in terms of resource utilization and high-value utilization.

The invention discloses an organic solid waste resource information management method and system based on big data, and relates to the technical field of organic solid waste treatment, and the method comprises the following steps: S100, deploying a multi-mode sensor network at key nodes of organic solid waste treatment equipment, and collecting physical and chemical parameters, equipment operation states and environmental parameters in real time; s200, performing real-time cleaning, dynamic threshold abnormal value elimination and normalization processing on the data in the step S100 through an edge calculation unit, and generating a standardized feature vector; s300, establishing a block chain encryption federal learning pool; s400, based on the learning pool data output in the step S300, generating a scarce scene processing scheme in combination with generative data enhancement and a digital mirror image deduction technology, and outputting a regulation and control instruction through a multi-objective optimization model; and S500, issuing the regulation and control instruction in the step S400 to an execution mechanism, synchronously generating an energy utilization rate, carbon footprint tracking and economy analysis board, and feeding back and correcting federal learning pool parameters according to an execution result.

The invention discloses a regulation and control method for organic solid waste treatment, which relates to the related technical field of solid waste treatment and comprises the steps of data acquisition, data processing, establishment of an organic solid waste characteristic database and a treatment process model library, formulation of a treatment process parameter regulation and control strategy and real-time monitoring of a regulation and control effect. The parameter change in the actual processing process is compared with the preset target parameter, and if the deviation exceeds the allowable range, the regulation and control strategy is adjusted in time. The invention further discloses a regulation and control system for organic solid waste treatment. The regulation and control system comprises a sensor network, a data processing center, an execution mechanism and a human-computer interaction interface. Various sensors are installed to collect various parameters in the organic solid waste treatment process in real time, a regulation and control strategy is formulated in combination with a fuzzy control algorithm and a neural network algorithm, the treatment process parameters can be precisely regulated and controlled, the treatment process is always in the optimal state, decomposition and conversion of organic matter are accelerated, and the treatment efficiency is improved. And the overall treatment efficiency is improved.

The invention relates to the technical field of organic solid waste composting, in particular to an organic solid waste resourceful treatment method for enhancing microbial composting activity. A conventional microbial aerobic fermentation composting method is poor in composting efficiency. Aiming at the technical problem, the invention provides the organic solid waste resourceful treatment method for enhancing the microbial composting activity, the principle of synergistic effect of microorganisms and an electric field is adopted in the composting fermentation process, and a method for regulating the temperature and the ventilatory capacity in stages in the composting fermentation process is combined; the activity of microorganisms in the whole composting fermentation process is remarkably improved, and the composting quality and efficiency are remarkably improved.

The invention provides a synergistic treatment method for intensifying aerobic compost humification and preventing and controlling pollution based on a molecular sieve 13X, and relates to the field of solid waste treatment. The method comprises the following steps: mixing livestock and poultry manure with composting auxiliary materials, adjusting the water content and the carbon nitrogen ratio, adding a molecular sieve 13X, and then carrying out conventional aerobic composting so as to strengthen humification, gas emission reduction and resistance gene removal in the composting process; the humic acid HA in the obtained compost rotten product is increased by 18.1% compared with that in a control group, and the humate-rich ratio is increased by 59.6%; the cumulative emissions of CO2, CH4, N2O, NH3, H2S, MeSH and Me2S are respectively reduced by 13.1%, 14.8%, 25.7%, 20.4%, 33.6%, 21.9% and 20.7% compared with the control group; the relative abundance of tetracycline resistance genes, aminoglycoside resistance genes, macrolide resistance genes and clindamycin resistance genes in a compost product is reduced by 72.7%, 92.6%, 87.1% and 86.2% respectively compared with a control group, and the relative abundance of a movable genetic element MGEs is reduced by 94.1% compared with the control group; according to the method, efficient recycling and harmlessness of the organic solid waste can be synchronously achieved, and gas emission in the composting process is reduced.

The invention provides a composite catalyst for supercritical water gasification hydrogen production and a preparation method and application thereof, and relates to the technical field of organic solid waste recycling, the composite catalyst comprises a carrier, an active component and an auxiliary agent; the carrier is prepared from a ZrO2 mesoporous material co-doped with Ce and La; the active component comprises Ni-Co bimetallic nanoparticles, and the Ni-Co bimetallic nanoparticles are subjected to vulcanization treatment to form a core-shell structure in which Ni-Co metal is wrapped by sulfur; and the auxiliary agent comprises MoO3. According to the composite catalyst, a Ce-La-ZrO2 mesoporous material serves as a carrier, Ni-Co bimetallic nanoparticles serve as an active component, a core-shell structure (NiCo at S) is formed after vulcanization treatment, the surface of the core-shell structure is covered with a layer of sulfur atoms, carbon deposition can be effectively inhibited, the chlorine poisoning resistance of the catalyst is enhanced through the added MoO3 auxiliary, and the service life of the catalyst is prolonged.

The present invention provides a method for enhancing the removal of resistance genes and promoting humification in aerobic composting. The method comprises the following steps: mixing livestock and poultry manure with a composting auxiliary material, adjusting the moisture content to 55%-65%, and adding a MnFe2O4 additive to obtain a composting raw material; aerobically composting the material, turning the compost every 2-3 days during a temperature rise period and a high temperature period, and every 7 days during a temperature fall period and a mature period, with the aerobic composting time being 20-30 days. Compared with a conventional composting method, the relative abundances of sulfonamide, tetracycline, macrolide, and aminoglycoside resistance genes in the mature compost obtained by the method are reduced by 60%-73%, 50%-57%, 20%-80%, and 45%-66%, respectively, and the humic acid (HA) content is increased by about 15%. Meanwhile, the method achieves efficient harmlessness and resource utilization of organic solid waste, and has the potential for large-scale production.

The invention provides a method for producing lactic acid through synergistic fermentation of organic solid waste and application, and particularly relates to the technical field of garbage treatment. According to the method for producing lactic acid through synergistic fermentation of the organic solid waste, the organic solid waste comprises raw kitchen waste, sewage plant sludge and polylactic acid waste; the method comprises the following steps: A, preparing the raw kitchen waste into liquid-phase kitchen slurry, adding the sludge of the sewage plant, and uniformly mixing to obtain pre-fermented slurry; b, adding the polylactic acid waste into the pre-fermented slurry, and performing sealed fermentation under an anaerobic condition to obtain fermentation liquor; and finally, separating and purifying the fermentation liquor to obtain the lactic acid. According to the method, cheap and rich organic solid wastes are used as raw materials, so that the raw material cost is reduced, the waste treatment cost is also reduced, the lactic acid production is more economical, feasible, stable and efficient, the production cost of the lactic acid is further reduced, and the development of downstream industries is promoted.

A method for enhancing resistance gene removal and promoting humification in an aerobic compost, which method comprises mixing livestock and poultry manure with compost auxiliary materials, adjusting the water content, adding an MnFe2O4 additive, and then performing aerobic composting for 20-30 days. Compared with conventional composting methods, the mature compost product obtained by means of the method exhibits a 60%-73% reduction in the relative abundance of sulfonamide resistance genes, a 50%-57% reduction in tetracycline resistance genes, a 20%-80% reduction in macrolide resistance genes, and a 45%-66% reduction in aminoglycoside resistance genes, and shows approximately a 15% increase in humic acid HA. This method achieves both efficient harmless treatment and resource utilization of organic solid waste.