115results about How to "Improve degradation efficiency" patented technology

This invention relates to the field of industrial wastewater treatment technology, and discloses an electrocatalytic oxidation device and its operating method for treating saline industrial organic wastewater. Wastewater enters the reaction chamber through the bottom inlet, is forced through the anode channels, and undergoes an electrochemical oxidation reaction on the anode surface to convert chloride ions into hypochlorous acid. A vacuum ultraviolet light source performs in-situ photolysis of water molecules and hypochlorous acid, exciting various active species, including strongly reducing hydrated electrons, strongly oxidizing hydroxyl radicals, and chloride radicals. This device, through the construction of a reduction-oxidation system, can efficiently degrade various pollutants with both electron-rich and electron-deficient characteristics. This invention utilizes the synergistic coupling of electrochemical generation and photochemical conversion to convert high-concentration chloride ions into active precursors, effectively overcoming the bottlenecks of low degradation efficiency and poor selectivity in traditional technologies for high-salt and complex water quality, and significantly improving the system's mineralization efficiency and energy utilization rate.

The application belongs to the technical field of polymer material recycling, and particularly relates to a high-efficiency enzymatic hydrolysis process of polycaprolactam. The high-efficiency enzymatic hydrolysis process of polycaprolactam provided by the application comprises the steps of acid pretreatment, enzymatic catalytic depolymerization and product post-treatment. The process combines sulfuric acid and a multi-enzyme system to treat PA6 with high substrate concentration. The physical form and chemical accessibility of PA6 are significantly changed through sulfuric acid pretreatment, which creates conditions for subsequent enzymatic hydrolysis reaction, and realizes efficient, deep and green degradation of PA6.

The invention relates to a catalytic hydrolysis method of waste epoxy resin, which comprises the following steps: putting the waste epoxy resin into a reaction kettle, adding ultrapure water, adding a small amount of sodium dodecyl diphenyl ether disulfonate surfactant and a boron trifluoride acetic acid catalyst, and carrying out hydrolysis reaction to realize catalytic degradation of the epoxy resin. Degradation products can be converted into epoxy monomers and anhydride monomers, so that cyclic utilization is realized. Compared with the prior art, the degradation method provided by the invention is not only green and safe, but also high in degradation efficiency, solves the problem that the waste epoxy resin cannot be recycled, saves resources, meets the green development requirement, and has practical engineering application value.

The application provides a method for quickly domesticating anaerobic ammonia oxidation bacteria, relates to the field of novel and efficient nitrogen removal technology, and comprises the following steps: constructing a coupled biological system, then adding simulated wastewater containing ammonium chloride and sodium nitrite into the coupled biological system, adding trace element nutrient solution after adjusting the pH to 7-8 by using anhydrous sodium carbonate, aerating the coupled system by using high-purity nitrogen gas to remove the residual air in the system, regularly sampling and monitoring the sludge and effluent in the reactor; after the sludge in the reactor appears obvious red-brown color and the ammonia nitrogen and nitrite nitrogen in the effluent are significantly removed, the domestication of the anaerobic ammonia oxidation bacteria is completed. The application utilizes anaerobic activated sludge, utilizes the principle of traditional microbial degradation of nitrogen-containing pollutants, introduces iron oxide composite material as an electron carrier to catalyze the degradation process of nitrogen-containing pollutants, improves the degradation efficiency of the traditional biological method, explores a new way to strengthen the degradation of nitrogen-containing pollutants, and reduces the cost.

This invention relates to the field of environmental remediation technology, specifically providing a method for the synergistic degradation of chlorinated organic pollutants using anaerobic microorganisms and iron-manganese minerals. The method includes the following steps: S1, after deoxygenation, water containing chlorinated organic pollutants is inoculated into a bacterial culture system, and the reaction system is placed in a constant-temperature shaking incubator for anaerobic reaction; S2, iron-manganese minerals are added to the reaction system, and a secondary reaction is carried out under aerobic conditions, thus completing the degradation of chlorinated organic pollutants. This invention significantly improves the overall purification efficiency of complex pollution systems containing chlorinated organic pollutants through an anaerobic-aerobic coupling and a synergistic biodegradation-chemical oxidation strategy, demonstrating promising application prospects.

The utility model discloses a kind of organic pollutant purification equipment for electroplating solution, it is related to electroplating solution processing technical field.The utility model includes box, the box is internally and fixedly connected with isolating plate, the isolating plate one side is fixedly connected with heating plate, the box top side is fixedly connected with pneumatic cylinder, the pneumatic cylinder output end is fixedly connected with push plate, the box top side is communicated with exhaust pipe.The utility model is provided with heating plate and gas pipe, significantly improve the mixing uniformity and pollutant degradation efficiency of electroplating solution, heating plate can reduce electroplating solution viscosity, promote the diffusion reaction of oxidant or flocculating agent, and the air or ozone input by gas pipe can further strengthen mixing effect, make organic pollutant contact purification medium fully, and, push plate driven by pneumatic cylinder can drive electroplating solution to flow, avoid local reaction insufficient, to improve overall purification efficiency.

The utility model belongs to the technical field of ecological breeding equipment, and particularly relates to an in-water circulation ecological breeding barrel which is detachably arranged in a breeding pond, a plurality of breeding holes are circumferentially formed in the bottom of the breeding barrel, water permeable holes are circumferentially formed in the top of the breeding barrel, and a multi-layer composite substrate layer sequentially comprises a first soil layer, a second soil layer and a third soil layer from bottom to top, the first soil layer comprises soil and earthworm soil, and the earthworm soil contains active earthworm groups; the second soil layer comprises coco coir, perlite and vermiculite; the third soil layer comprises peat, perlite and vermiculite; the fourth soil layer comprises peat and vermiculite, and the biological-physical synergistic purification system has the beneficial effects that biological-physical synergistic purification is achieved, and the self-purification capacity of the system is improved.

This invention relates to a method for in-situ synthesis of visible light photocatalytic geopolymers from vanadium-containing solid waste. The technical solution is as follows: vanadium-containing solid waste is ground into powder, and the resulting vanadium-containing solid waste powder is mixed with vanadium pentoxide powder. The resulting vanadium-containing geopolymer precursor is mixed with an alkaline activator and stirred evenly to obtain a vanadium-containing geopolymer slurry. The vanadium-containing geopolymer slurry is placed in a mold, cured, demolded, cured a second time, and crushed to obtain a crushed vanadium-containing geopolymer. The crushed vanadium-containing geopolymer is mixed with deionized water to obtain a vanadium-containing geopolymer aqueous solution. Bismuth nitrate solution is added to the vanadium-containing geopolymer aqueous solution, mixed evenly, and the pH value is adjusted. A hydrothermal reaction is then carried out. Solid-liquid separation, washing, and drying are performed to obtain the visible light photocatalytic geopolymer. This invention can efficiently utilize low-vanadium content and completely eliminate vanadium. The in-situ synthesis of visible light photocatalytic geopolymers from vanadium-containing solid waste not only effectively decomposes organic pollutants under visible light conditions but also effectively fixes vanadium in the vanadium-containing solid waste.

The application discloses a process for improving the quality of palm kernel meal feed by enzyme and bacteria synergistic fermentation, and belongs to the field of feed biotechnology.The process is characterized by the following steps: crushing and screening palm kernel meal, mixing the palm kernel meal with 20% bran and 4% ammonium sulfate as dry matter to obtain a basic substrate;compounding bacillus subtilis, aspergillus niger and saccharomyces cerevisiae at a ratio of 1:1:1 of viable bacterial number, adding 0.67% mannanase and 0.3% xylanase to prepare a bacteria-enzyme mixed solution, inoculating the bacteria-enzyme mixed solution at a 10% inoculation amount, adjusting the moisture content to 50% and the pH to 6.4, and then sealing and storing the bacteria-enzyme mixed solution for use after 4 days of fermentation at 33.5 DEG C; and the bacteria-enzyme mixed solution can be stored for a long time.The process can efficiently degrade crude fiber and anti-nutritional factors, improve the protein content and the digestibility, is stable and easy to mass-produce, can replace part of corn and soybean meal in the daily ration of ruminants, and realizes high-value utilization of palm kernel meal.

The invention relates to the technical field of wastewater treatment, in particular to an electrocatalytic organic wastewater treatment device which comprises a tank body, an outer barrel and an inner barrel, the outer barrel and the inner barrel are arranged in the tank body, the inner barrel is arranged in the outer barrel, a first reaction area is arranged in the inner barrel, a second reaction area is formed between the inner barrel and the outer barrel, and a third reaction area is formed between the outer barrel and the tank body. A communicating hole is formed in the inner barrel and is communicated with the first reaction area and the second reaction area, and an overflow hole is formed in the outer barrel; a feeding assembly is arranged in the first reaction area, polytetrafluoroethylene balls are arranged in the second reaction area, and a waste treatment assembly is arranged in the third reaction area. Meanwhile, non-free-radical active species such as singlet oxygen generated by air on the surfaces of an electric field, ultrasonic waves and a polytetrafluoroethylene material are combined to form a double-effect oxidation system under the combined action of free radicals and non-free radicals, so that the degradation efficiency of organic pollutants is remarkably improved, and the application range of the organic pollutants is remarkably widened.

The utility model discloses a detachable aeration device, including the air intake main pipe of setting in the activated sludge pool upper end, the branch pipe of vertical setting in the air intake main pipe below, the aeration pipe of setting in the branch pipe lower extreme, be equipped with the aeration micropore on the aeration pipe. Can solve the problem of the micropore on the existing aeration device easy to block and not easy to replace and clean after blocking.

This invention relates to the field of wastewater treatment technology, and more particularly to an urban domestic wastewater treatment device including a treatment pump station. The top of the outer arc surface of the treatment pump station is provided with a flange inlet, and the bottom of the inner arc surface of the treatment pump station near the flange inlet is connected to a conical flow guide plate. The upper surface of the conical flow guide plate is provided with an inlet in the middle. The conical flow guide plate is a double-layered structure with an arched end inside. Through a special structural design, the water flow is guided to form a slow flow state, providing sufficient reaction time for the coalescence of tiny oil droplets. This promotes the fusion of emulsified oil droplets and dispersed oil droplets to form large oil droplets. Utilizing the physical property that the density of oil is less than that of water, the oil droplets can naturally float to the surface and form a stable floating oil layer. The entire oil-water separation process does not require additional power and can be completed solely by gravity, effectively improving the oil-water separation efficiency while reducing the energy consumption and maintenance costs of the device.

The application provides a Mo and K co-doped MnO2 catalyst, which is obtained by doping Mo and K in alpha-MnO2 nanowires, and Mo and K are uniformly distributed on the surface and tunnel structure of the alpha-MnO2 nanowires, and the catalyst has a hydroxyl functional group. The application also provides a preparation method of the catalyst, and a method for degrading pollutants by activating peracetic acid with the catalyst, wherein peracetic acid and the catalyst are added into wastewater containing organic pollutants under stirring, and the pH value of the wastewater is controlled to be 5-9; in the wastewater treatment process, the catalyst activates the peracetic acid to generate organic free radicals and singlet oxygen to degrade the organic pollutants in the wastewater. The application can improve the ability of the MnO2-based catalyst to activate peracetic acid to generate active species to degrade organic pollutants, and solves the problems that the existing MnO2-based catalyst has low ability to activate peracetic acid and poor degradation ability for organic pollutants.

The utility model provides a kind of photo-assisted electrochemical oxidation photoelectric coupling experimental device, belong to water treatment advanced oxidation experimental research technical field.The device core includes photochemical reactor and electrochemical reactor.Electrochemical reactor is used for electrode material performance test or for electrolysis to produce oxidant.Photochemical reactor is made of cylindrical high boron silicon material, light source is placed in quartz sleeve to isolate electrolyte and is fixed in the center of reactor, for light source performance test or for photolysis to generate active substance.Electrochemical reactor and photochemical reactor are connected by an adjustable circulating pump of flow rate and realize electrolyte exchange.The experimental device is designed for the lack of photoelectric coupling research device currently, by changing electrode material, light source, experimental parameter, the effect, kinetics and key influencing factor of key components and reaction condition on photo-assisted electrochemical oxidation advanced oxidation technology degradation pollutant are researched.

The application relates to the field of genetic engineering, and discloses a 2-hydroxyethyl terephthalate diester hydrolase mutant, a coding gene, a recombination carrier, a recombination strain, an enzyme preparation and application. The 2-hydroxyethyl terephthalate diester hydrolase mutant is obtained by mutating at least one of positions 109, 110, 138, 225, 276, 287, 312, 313, 333, 335, 351, 356, 387, 394, 395, 401 and 413 of an enzyme with the amino acid sequence shown in SEQ ID NO:1. The 2-hydroxyethyl terephthalate diester hydrolase mutant has excellent thermal stability, and has better catalytic efficiency at high temperature.

The invention relates to the technical field of biological medicine. The invention provides a PCSK9-targeted PROTAC oral drug as well as a preparation method and application thereof. The drug comprises the following structures: a PCSK9 binding peptide, an E3 ubiquitin ligase ligand, a cell penetrating peptide and a flexible linker. The medicine provided by the invention can be used for preparing products for treating lipid metabolism disorder diseases such as hypercholesteremia and atherosclerosis. In addition, the medicine disclosed by the invention can also be combined with statins to synergistically enhance the lipid-lowering curative effect.

The present application belongs to the technical field of contaminated site remediation and environmental engineering, and relates to a construction method and application of a green bioremediation system for bisphenol A in a production enterprise site. The present application provides a construction method of a green bioremediation system for bisphenol A in a production enterprise site, and the construction method comprises the following steps: S1, BPA degrading bacteria screening and culture; S2, micro-nano biochar preparation; S3, bacteria-carbon immobilization; S4, bioremediation system construction; the BPA degrading bacteria are Acinetobacter baumannii A1449.The present application can realize efficient remediation of BPA in soil and water.

This invention relates to the field of water remediation technology, specifically to a piezoelectric catalytic component and a groundwater remediation system. The piezoelectric catalytic component includes: an upper part of a piezoelectric catalytic body with a spiral channel communicating with an inlet, and a lower part with a cavity; the cross-sectional diameter of the spiral channel gradually decreases from the inlet to the end; a column is provided in the cavity, and a piezoelectric film is spirally wound around the column; the end of the spiral channel is close to the piezoelectric film at the upper end of the column; the piezoelectric film receives water containing organic pollutants flowing in from the spiral channel and catalytically degrades the organic pollutants through piezoelectric conversion; this application combines the static pressure of the water flow, accelerates the water flow through the spiral channel, the flow velocity gradually increases from top to bottom, the hydraulic impact load is correspondingly enhanced, the mechanical force flowing through the piezoelectric film is increased, low-frequency vibration excites the piezoelectric catalytic effect, maximizes the catalytic degradation capacity of the piezoelectric material, and thus improves the catalytic degradation efficiency of the piezoelectric material.

The utility model relates to a system of ball mill degrading dioxin in fly ash, it includes: stirring mixing mechanism, including first feeding port etc., first feeding port, dosing port all with the top end intercommunication of mixed box, filter pressing mechanism adopts the filter pressing mechanism of belt, and the filter pressing mechanism of belt includes second feeding port etc., and second feeding port is located one side of pre -dewatering section and receives the slurry that first discharge port discharged, drying mechanism, including combustion chamber etc., and combustion chamber is located one side of heat storage room, and the hot air outlet of combustion chamber is communicated with one end of drying cylinder, and the combustion port is located one side of the bottom end of combustion chamber, and third feeding port is located one end of drying cylinder and receives the fly ash cake that second discharge port exports, ball mill mechanism, and ball mill mechanism adopts the ball miller. The utility model improves dioxin degradation efficiency, reduces environmental risk simultaneously, does not produce secondary pollutant, realizes the efficient, low -consumption, safe degradation of fly ash dioxin finally.

The application discloses a kind of high concentration pyridine wastewater full biological treatment method, belong to the field of biological method treatment high concentration pyridine wastewater.The treatment method in wastewater is sequentially through pyridine strain screening domestication culture strain optimization culture-wastewater treatment, this process is simple, reaction efficient, can be 4000mg / L below pyridine full biodegradation, pyridine degradation efficiency is higher than 99%;The application can be full biological method treatment high concentration pyridine wastewater, effect is good, cost is low, no secondary pollution.The method of the application is the upgrading of ordinary biological method, widen the scope of application of biological treatment pyridine wastewater.

This invention belongs to the field of inorganic catalyst materials and organic pollutant degradation technology, specifically relating to a Cu@ITGs confined microsphere catalytic material based on iron tailings, its preparation method, and its application in degrading organic matter. The method includes the following steps: mixing activated iron tailings powder and meta-high terephthalic acid to obtain a mixed dry powder; obtaining a composite alkali activator; weighing copper nitrate particles, dispersing them in ethanolamine for complexation, and slowly adding them to the composite alkali activator to obtain a mixed solution; adding the mixed dry powder to the mixed solution to synthesize a gel slurry; dripping the obtained gel slurry into polyethylene glycol-800 to form microspheres; and after fully curing and drying the microspheres, gradient calcining under a N2 atmosphere to obtain the confined catalytic material Cu@ITGs. This invention uses bulk industrial solid waste as the main raw material to prepare a multifunctional catalytic material with both high catalytic activity and excellent stability for use in wastewater treatment, realizing "waste-to-waste" treatment and high-value-added resource utilization of solid waste.

The invention discloses a CoS2 (at) TCPP-Co nano composite material as well as a preparation method and application thereof, and relates to the technical field of rapid detection of nano enzyme materials and efficient degradation of fungaltoxin. The preparation method of the CoS2 (at) TCPP-Co nano composite material comprises the following steps: dissolving cobalt nitrate and sodium thiosulfate in water, adding ethylene glycol and ethanol, stirring and heating to react, centrifuging, washing and drying a solid to obtain CoS2. The preparation method comprises the following steps: dissolving tetra (4-carboxyl phenyl) porphin and polyvinylpyrrolidone in N, N-dimethylformamide and absolute ethyl alcohol, uniformly mixing, adding CoS2, carrying out a constant-temperature reaction, and finally centrifuging, washing and drying to obtain the CoS2 atTCPP-Co nano composite material. The composite material shows excellent peroxidase-like activity, and can be coupled to a ligand to realize rapid quantitative detection of AFB1. In addition, reactive oxygen free radicals generated by the CoS2 (at) TCPP-Co in the catalytic reaction can efficiently destroy the molecular structure of AFB1, so that effective degradation of the toxin is realized.

The invention discloses an organic phosphorus wastewater degradation and phosphorus recovery experimental device and method, and particularly relates to the field of organic phosphorus wastewater treatment.The organic phosphorus wastewater degradation and phosphorus recovery experimental device comprises an electric reaction box, a recovery reaction unit capable of performing electrochemical reaction is arranged in the electric reaction box, and a water inlet pipe and a water outlet pipe are arranged between the two sides of the recovery reaction unit and the electric reaction box respectively; the recovery reaction unit comprises a water storage reaction box, a Fe3O4-coated N-GO negative plate and a titanium platinum positive plate are arranged in the water storage reaction box, the Fe3O4-coated N-GO negative plate is used for preparing Fe3O4-coated N-GO by adopting a one-step hydrothermal method, the Fe3O4-coated N-GO is loaded on an electrode, and the Fe3O4-coated N-GO negative plate has excellent electron transfer efficiency and catalytic activity. The organic phosphorus wastewater can be completely degraded within 40 minutes, and the PO4 < 3-> conversion rate is 35%; by constructing a continuous operation system for electrochemical degradation and recovery of the organophosphorus wastewater, efficient degradation and detoxification of the organophosphorus wastewater are realized, released phosphorus is recovered, and the method has practical significance of reducing treatment cost and increasing economic benefits.

The invention discloses a pipeline type multi-stage biological deodorization device which comprises a bio-trickling filter structure section, a connecting device, a pre-wetting structure section and a fine treatment structure section, and the connecting height of the bio-trickling filter structure section and an odor output pipe can be adjusted through the bio-trickling filter structure section; the connecting device is arranged at the rear end of the top of the bio-trickling filter structure section; the pre-wetting structure section is arranged at the left moving end of the connecting device; the biological filtration fine treatment structure section is arranged at the right side moving end of the connecting device and can drive a center component in the top of the biological trickling filtration structure section to rotate and stir in a limiting manner, and the connecting device can drive the pre-wetting structure section and the biological filtration fine treatment structure section to synchronously expand and contract; the fillers in the left end and the right end of the top of the bio-trickling filter structure section are clamped and fixed; in conclusion, flexible adjustment, linkage and quick connection and disconnection of the structural sections are achieved through multiple assemblies, and the odor purification quality and the deodorization efficiency are high.

The application provides application of a nitrogen-doped carbon-based iron monatomic catalyst in degradation of ADC drugs in wastewater, and belongs to the technical field of advanced oxidation water treatment. The nitrogen-doped carbon-based iron monatomic catalyst with a two-dimensional wrinkled ultrathin morphology is prepared by a nano-magnesium oxide template assisted method. In application, the catalyst is dispersed in wastewater containing ADC drugs, stirred and adsorbed to adsorption equilibrium, then a proportion of persulfate is added, and reaction is carried out under the condition that pH is 3-9, so that efficient degradation of the ADC drugs is realized. The application has the advantages of high degradation efficiency, fast reaction speed, wide pH adaptation range, strong anion interference resistance, good broad-spectrum property, good catalyst stability and the like, and actual wastewater toxicity evaluation proves that the application has good detoxification capacity, and has wide application prospect in the field of treatment of refractory organic wastewater such as pharmaceutical wastewater and hospital wastewater.

This invention relates to a magnetic Z-type photocatalyst and a method for the combined hydrodynamic cavitation photocatalytic degradation of antibiotics in wastewater while simultaneously generating heat. The technical solution employed is: utilizing a hydrodynamic cavitation system and employing a magnetic Z-type BiFeO... 3 / Bi 2 Fe 4 O 9 Photocatalysts synergistically degrade antibiotics in wastewater, while the hydraulic cavitation system generates significant heat during wastewater treatment, substantially increasing the water temperature. Simultaneously, Z-type BiFeO... 3 / Bi 2 Fe 4 O 9 Photocatalysts are magnetic, easy to recover, and highly active, making them better suited for degrading antibiotics in wastewater. This invention combines two advanced oxidation technologies, enabling them to efficiently and synergistically degrade organic wastewater. This results in low treatment costs, no secondary pollution, and significant resource conservation. It provides valuable evidence for the future large-scale, industrial-scale treatment of organic wastewater and heat generation using hydrocavitation combined with advanced oxidation technology.

The utility model relates to direct drinking water equipment technical field discloses a kind of multifunctional integrated nanofiltration pipeline direct drinking water equipment, comprising: raw water tank;Pretreatment device, input and the output of raw water tank intercommunication;First ozone generator and micro-nano bubble generator, first ozone generator is connected with micro-nano bubble generator, and micro-nano bubble generator is communicated with pretreatment device;Precise filtration device, input and the output of pretreatment device intercommunication, and precise filtration device is also communicated with the output of micro-nano bubble generator;Second ozone generator and ozone mixer, the output of second ozone generator and ozone mixer intercommunication, and the input of ozone mixer and the output of precise filtration device intercommunication;Pure water tank, input and the output of ozone mixer intercommunication;End processing device.The utility model is high in integration, and good in sterilization effect, and stable in operating effect.

The utility model relates to the field of pollutant treatment, in particular to a sewage treatment device which comprises a box body, a partition frame, a filler plate and an aeration disc, the box body is provided with a containing cavity, the partition frame is detachably connected to the inner wall of the containing cavity, the filler plate and the aeration disc are arranged on the two sides of the partition frame respectively, the filler plate is detachably connected to the upper end of the partition frame, and the aeration disc is detachably connected to the lower end of the partition frame. The outer wall of the aeration disc is fixedly connected with a hinge column, and the hinge column is rotatably connected to the inner wall of the accommodating cavity. Microorganisms attached to the filler plate decompose organic pollutants in sewage or waste gas through metabolism and convert the organic pollutants into harmless substances or stable residues, the aeration disc is externally connected with oxygen, necessary dissolved oxygen is provided for the microorganisms, the activity of the microorganisms is enhanced, the degradation efficiency is improved, the hinged column rotates to enable the aeration disc to rotate, scaling is reduced, and the aeration efficiency is improved. The pollutant treatment efficiency is improved.

This invention discloses a fermentation agent for treating agricultural ecological solid waste, its preparation method, and its application, belonging to the field of microbial technology. The fermentation agent of this invention comprises compound functional bacteria, soybean meal, molasses, disodium hydrogen phosphate, corn straw powder, and a preservative. The compound functional bacteria include *Bacillus subtilis*, *Trichoderma helicola*, and *Bacillus bellis*. This invention uses a compound of three strains—*Bacillus subtilis*, *Trichoderma helicola*, and *Bacillus bellis*—in a specific ratio to synergistically accelerate the decomposition of straw, effectively shortening the fermentation cycle and improving the decomposition effect. This agent can efficiently degrade agricultural ecological solid waste, converting it into high-quality organic fertilizer, thus turning waste into treasure. It solves the problem of agricultural solid waste pollution and saves fertilizer resources, demonstrating significant ecological, economic, and social benefits.

The present application belongs to the technical field of fermentation engineering, and discloses a method for preparing liquid compound microecological preparation by step-by-step coupling fermentation and application. The preparation is prepared by step-by-step coupling of the following steps: first, aerobic liquid fermentation; second, liquid-solid coupling; and third, anaerobic fermentation, and is a liquid compound microecological preparation with high viable bacterial count. The present application solves the problems of metabolic rhythm mismatch and nutrition competition of different aerobic types of strains, realizes efficient cooperation of aerobic bacillus and anaerobic lactobacillus, fully ferments xylan astragalus suspension, and significantly improves the probiotic function of the preparation, and is suitable for feed additives and animal feeding.