1263results about How to "Promote decomposition" patented technology

The invention discloses a bacillus subtilis microbial agent for promoting decay of corn straws and application of the bacillus subtilis microbial agent, the preservation date of bacillus subtilis K15 is May 21, 2024, the preservation unit is China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.30716. The bacillus subtilis K15 has the advantages that the preservation number is CGMCC No.30716; the bacillus subtilis K15 is screened from soil in North China Plain, tests prove that the strain produces carboxymethyl cellulase, decomposition of corn straw can be effectively promoted, the decomposed straw provides a fertilizer source for wheat growth, growth of wheat plants and root systems is promoted, and the wheat yield is effectively increased. According to the invention, the function of the bacillus subtilis in straw decay promotion under the winter low-temperature condition in North China Plain is excavated, and a new strain resource is provided for a microbial fertilizer.

The invention relates to a weight-losing enzyme and a preparation method thereof, and belongs to the technical field of biology, and the weight-losing enzyme comprises a fruit enzyme, a vegetable enzyme, a seed enzyme and a lotus leaf extract; the fruit enzyme is obtained by performing enzymolysis on mixed fruit pulp of apples, lemons, grapefruits and haws through pectinase, performing enzymolysis through pepsase and performing co-fermentation through bifidobacterium longum and lactobacillus acidophilus; the vegetable enzyme is obtained by performing enzymolysis on mixed vegetable pulp of wax gourd pulp, celery and spinach through pectinase, performing enzymolysis through pepsin and performing fermentation through lactobacillus plantarum and bifidobacterium adolescentis; the seed enzyme is obtained by carrying out trypsin enzymolysis on mixed powder of semen raphani and phaseolus calcaratus, then carrying out nattokinase enzymolysis and then fermenting with bifidobacterium breve; the lotus leaf extract is obtained by sequentially carrying out enzymolysis on lotus leaves through hemicellulase, snail protease and nattokinase. All the components are matched for use, so that the weight-losing food has the effects of promoting digestion, inhibiting fat absorption, regulating intestinal flora, promoting metabolism and the like, and has a good weight-losing effect.

The invention discloses a compound enzyme preparation for improving the absorption and utilization rate of a fertilizer and a preparation method thereof, and belongs to the technical field of enzyme preparations. The compound enzyme preparation is prepared from the following components in parts by weight: 100 parts of purified water, 6 to 8 parts of modified cellulase, 10 to 12 parts of immobilized protease, 10 to 12 parts of phosphatase, 10 to 14 parts of urease, 8 to 10 parts of nitrate reductase, 10 to 12 parts of pectinase, 8 to 10 parts of chitinase, 6 to 8 parts of xylanase, 10 to 12 parts of beta-glucosidase, 10 to 12 parts of superoxide dismutase and 4.5 to 6 parts of a microbial agent, the modified cellulase is obtained by chemically modifying cellulase; the immobilized protease is prepared by the following steps: adsorbing activated and coupled modified polylactic acid and a protease solution, crosslinking with glutaraldehyde, filtering, washing and drying. The compound enzyme preparation improves the fertilizer absorption and utilization rate of plants.

The invention discloses an anaerobic high-temperature decomposition integrated device for preparing biochar from domestic garbage and sludge, and relates to the technical field of domestic garbage and sludge treatment. The device comprises a crushing chamber, and a crushing assembly is arranged in the crushing chamber; through the arrangement of the crushing assembly, the solidified and blocked domestic garbage sludge is crushed, the crushed domestic sludge garbage falls into the feeding pipe and falls into the reaction kettle under the directional conveying effect of the spiral blade, and a high-temperature reaction environment is provided under the heating effect of the electric heating pipe on the interior of the reaction kettle; and therefore, the decomposition process of organic matters in the sludge is accelerated, the yield and quality of biochar are improved, the decomposition process of the organic matters in the sludge is accelerated, high-temperature pyrolysis gas generated in the pyrolysis process is pumped out through a fan and conveyed into an arc-shaped cover through a gas inlet pipe and a connecting pipe to heat the bottom of a feeding pipe, and the overall structure is compact; the steps are orderly, and the treatment efficiency of the domestic sludge garbage is further improved.

The invention relates to the field of environmental remediation, and discloses a remediation method for high-concentration organic pollutants in soil, which comprises the following steps: firstly, injecting a nano zero-valent iron (nZVI) suspension into the contaminated soil for chemical reduction treatment, then adding sodium persulfate for oxidation treatment, and then adding a nano zero-valent iron (nZVI) suspension into the contaminated soil; the complex organic pollutants are converted into biodegradable intermediate products; then, two-stage microbial communities are introduced in sequence, the first-stage microbial community is used for degrading alcohol and ketone intermediate products, the second-stage microbial community is used for degrading organic acid intermediate products, and thorough mineralization of pollutants is achieved. According to the method, the pollutant degradation rate and the final removal effect can be remarkably improved, and the method is suitable for treatment scenes of various high-concentration organic pollutants and has high adaptability and economic benefits.

The invention relates to the technical field of organic fertilizers and planting of watermelons and muskmelons, and provides a special fertilizer for milk irrigated watermelons and muskmelons and a double-stubble planting method for sweetness enhancement of milk irrigated watermelons and muskmelons. The special fertilizer for the milk irrigated watermelons and muskmelons comprises black goat manure, sophora alopecuroide, sesame seed meal, bran, organic fresh milk, brown sugar and zymophyte. The black goat manure is pulverized into powder by a pulverizer, the sophora alopecuroide is pulverizedinto 1 cm to 2 cm, and the ratio of the black goat manure, the sophora alopecuroide, the sesame seed meal, the brans, the organic fresh milk, the brown sugar and the zymophyte is 2700-3200: 80: 50: 150: 5: 1. The double-stubble planting method for sweetness enhancement of the milk irrigated watermelons and muskmelons comprises the following steps: selection of a nursery seedling plate and soil, cleaning and germination accelerating of seeds, soil preparation, transplanting, irrigation, topdressing, shaping and forking of watermelon and muskmelon vines and fruit bearing of the watermelons and the muskmelons. The problems that in an existing watermelon and muskmelon planting process, soil nutrients are damaged due to the fact that chemical fertilizers are used for a long time, and the sweetness of melons is reduced are solved.

The invention belongs to the technical field of lithium ion batteries, and relates to an electrolyte of a lithium ion battery for a high-nickel ternary positive electrode material and application of the electrolyte, and the electrolyte comprises an organic solvent, a lithium salt and an additive, the additive is prepared from (5-cyanopyridine-3-yl) potassium trifluoroborate. The lithium ion battery electrolyte can form low-impedance interfacial films on the surfaces of a positive electrode and a negative electrode at the same time, interface stability is improved, and better cycling stability and longer service life can be obtained when the lithium ion battery electrolyte is applied to a lithium ion battery.

The invention relates to the field of building materials, and particularly discloses a coal gangue activation treatment method, prepared calcined coal gangue and application, the treatment method comprises the following steps: pretreatment: crushing and screening coal gangue to obtain coal gangue particles; the coal gangue particles are treated in a eutectic solvent, ultrasonic-assisted treatment is carried out for 2-3 h, pretreated coal gangue is obtained after water washing, the eutectic solvent comprises an HBA component and an HBD component, the HBA component is a mixture of choline chloride and an amide compound, and the HBD component is a mixture of a carboxylic acid mixture and polyhydric alcohol; calcining: calcining the pretreated coal gangue at 400-450 DEG C to obtain calcined coal gangue, the invention also discloses the calcined coal gangue prepared by the method, and the method has the characteristic of realizing coal gangue activation treatment under lower energy consumption.

The invention relates to the technical field of rare earth ore concentrate treatment, in particular to a rare earth ore concentrate treatment method. The treatment method of the rare earth concentrate comprises the following steps that the rare earth concentrate, a calcium-containing compound, silicon dioxide and carbon powder are mixed and roasted, and roasted ore is obtained; water is added into the roasted ore for size mixing, and size is obtained; and acid is added into the slurry for reaction, solid-liquid separation is carried out, and acid leaching residues and rare earth chloride feed liquid are obtained. The method has the advantages of being simple in technological process, high in rare earth recovery rate, short in reaction time, environmentally friendly, low in cost and diversified in rare earth grade applicability. The silicon dioxide can increase the decomposition activity of bastnaesite and monazite in the rare earth ore, rare earth compounds easy to leach can be generated, and therefore the decomposition rate of the rare earth ore concentrate is increased, and calcium can also play a role in fixing fluorine. According to the method, the rare earth decomposition rate is 98% or above, and the rare earth leaching rate is 96% or above.

The invention belongs to the field of engine aftertreatment systems, and provides a composite two-stage SCR system, a control method, an aftertreatment system.The system comprises a first SCR, a first ASC, a DOC, a DPF, a second SCR, a second ASC, a calculation control unit, an electric heating device, a gas concentration detection unit and an exhaust temperature unit; and the control unit is used for determining a urea injection control strategy of the first SCR and the second SCR and a working strategy of the electric heating device according to the nitrogen oxide concentration and the nitrogen dioxide proportion detected by the gas concentration detection unit and the temperature obtained by the exhaust temperature unit, and respectively controlling the first SCR, the second SCR and the electric heating device to work according to the determined strategies. According to the invention, the cooperative control requirement of ultralow nitrogen oxide emission and nitrous oxide gas emission limitation of the diesel engine can be met.

The invention discloses a flame-retardant fiber curtain fabric and a preparation method thereof, and relates to the technical field of flame-retardant fabrics, the flame-retardant fiber curtain fabric comprises a fabric substrate and a flame-retardant coating arranged on the fabric substrate, and the flame-retardant coating comprises nano-silica particles and nano-magnesium hydroxide particles in a mass ratio of 1: 1.2-2. The flame-retardant fiber curtain fabric prepared by the invention has remarkable flame retardance and thermal stability, and shows an excellent flame-retardant effect in a high-temperature environment.

The invention belongs to the field of graphite purification, and particularly relates to a segmented purification method of natural graphite. According to the method provided by the invention, natural graphite and sodium hydroxide are mixed and ground, rapid cooling is performed after microwave treatment, microwave treatment is performed after hydrofluoric acid circulation treatment, and a high-purity graphite product is obtained. In order to solve the problems that in the prior art, natural graphite is low in purity, and the conductivity is reduced after purification, according to the segmented purification method of the natural graphite, high-purity graphite with excellent conductivity is obtained through segmented alkali treatment, microwave treatment, acid treatment and microwave treatment.

The invention provides a lithium-supplementing composite additive, a lithium-supplementing positive pole piece for inhibiting flatulence and application, and belongs to the field of lithium ion batteries. The lithium supplementing composite additive is a mixture of a lithium supplementing agent and aminated aluminum oxide, the mass ratio of the lithium supplement agent to the aminated aluminum oxide is (6-10): (3-5); the aminated aluminum oxide is activated aluminum oxide modified by an amino organic matter; the mass ratio of the amino organic matter to the activated aluminum oxide is 3: (7-12); the lithium supplement agent is hydroxyl cycloenone dilithium salt or lithium carboxylate. The lithium-supplementing positive pole piece capable of inhibiting flatulence comprises a current collector, an active coating and a functional coating located on the surface of the active coating, and the functional coating contains a lithium-supplementing composite additive and has the functions of supplementing lithium, absorbing acid and inhibiting flatulence. The method is characterized in that the aminated alumina matrix can absorb hydrofluoric acid in an electrolyte, and the aminated group can absorb carbon dioxide generated by decomposition of a lithium supplement agent. The method can reduce the problem of battery cycle gas expansion in the use process of the lithium supplement agent, and improves the battery cycle and safety performance.

The invention relates to a metal additive modified Pt-loaded CeO2 catalyst, preparation and application thereof in CO oxidation, and belongs to the technical field of industrial catalysis. The preparation process of the catalyst mainly comprises the following steps: respectively dissolving cerium salt, platinum salt and auxiliary metal salt in deionized water to prepare corresponding precursor solutions; then, mixing the three solutions, and dropwise adding ammonia water under a stirring condition until yellow precipitates are generated; and finally, drying and washing the precipitate, and calcining the solid powder in a proper atmosphere to obtain the assistant metal modified Pt / CeO2 catalyst. La, Pr, Nd or Sm auxiliary metal is introduced into the Pt / CeO2 catalyst, so that the CO catalytic oxidation performance of the catalyst can be improved, and the poisoning resistance of the catalyst in an SO2-containing environment can be enhanced. The method has important significance in the actual industrial application, especially in the catalytic oxidation process under the condition of treating complex flue gas.

The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a multi-environmental factor and season difference photovoltaic ultra-short-term power prediction and correction method, which comprises the following steps of: 1, performing correlation analysis, and screening out main environmental factors influencing photovoltaic power; 2, performing signal feature extraction on the photovoltaic time sequence data by utilizing VMD to obtain components which are high in stability and contain different frequencies, and performing primary prediction on each component by adopting a CNN-BiGRU-Attention model; and step 3, carrying out secondary prediction on the error sequence by using VMD-SSA-LSSVM, and correcting the result of the primary prediction, the design is reasonable, a prediction model optimization strategy considering seasonal differences is provided, photovoltaic output has obvious periodicity, a photovoltaic output probability prediction model is established on the premise of considering seasons, model parameters are optimized, and the prediction efficiency is improved. Therefore, the prediction precision of the prediction model in each season is optimal.

The invention discloses a method for preparing a container aluminum foil with a high recycled aluminum content. The components of the aluminum foil are: Si: 0.2-0.60%, Fe: 1.20-1.60%, Cu: 0.01-0.05%, Mn: 0.4-0.8%, Mg: 0.01-0.05%, Zn: 0.01-0.05%, Ti: 0.015-0.035%, and the balance is Al; the process flow is: smelting-continuous casting and rolling-cold rolling-finished product annealing; the invention makes continuous casting and rolling The proportion of recycled aluminum waste used in the rolling process has increased from 10%-20% to 60%-80%. The energy consumption of the industrial chain has been reduced, pollutant emissions have been reduced, the amount of alloying agents added has been reduced, production costs have been reduced, and the green production effect has been more obvious. The process flow has been greatly shortened, energy consumption has been reduced, pollutant emissions have been reduced, and green production has been implemented. The thickness of the container foil produced is 0.125-0.16mm, the O-state tensile strength is 110-140Mpa, the elongation is ≥30%, and the cupping value is ≥9mm.

The utility model discloses a novel advanced oxidation device which comprises an outer shell, a gas-liquid mixing chamber, an ultrasonic atomization disc, a gas inlet hole, a water inlet hole, a connecting ozone generator, a UV reaction coil pipe and the like. Through ultrasonic wave catalysis and ultraviolet light catalysis, H2O is excited by O3 and a large amount of. OH with higher oxidability is generated, the mixing degree and turbulent fluctuation intensity of ozone and sewage are improved, the mass transfer coefficient is increased, the mass transfer rate of ozone is increased, and four-section oxidation reaction is carried out in one reactor, so that the ozone oxidation efficiency and effect are greatly improved; and a reinforced oxidation effect is generated on pollutants in the wastewater, so that the pollutants in the wastewater are degraded and removed.

The invention relates to the technical field of fertilizers, in particular to a carbon-water biomass fertilizer and a preparation method thereof. The organic fertilizer is prepared from the following raw materials in parts by weight: 4000 to 5000 parts of solid wood sawdust, 80 to 120 parts of vegetable bran, 80 to 120 parts of wheat bran, 200 to 300 parts of cow dung, 200 to 300 parts of sheep manure, 20 to 40 parts of brown sugar, 30 to 50 parts of corn starch and 80 to 120 parts of microbial compound strains. The solid wood sawdust, vegetable bran, wheat bran, cattle and sheep manure and other agricultural byproducts are used as raw materials, decomposition of organic matters is accelerated under the action of fermentation and microbial composite strains, and the content of extractable organic carbon in soil is increased. According to the present invention, the soil structure and the soil fertility can be easily improved, the plant growth can be promoted, the resource utilization of the agricultural waste can be achieved, and the characteristics of environmental protection and sustainability are provided.

The invention relates to the field of transparent flame-retardant modification of polycarbonate, in particular to a sulfonated polyborosiloxane flame retardant for transparent flame-retardant polycarbonate and a preparation method of the sulfonated polyborosiloxane flame retardant. The preparation method comprises the following steps: adding octamethylcyclotetrasiloxane, tetraethyl silicate, boric acid and a sulfonate compound into an organic solvent, adjusting the pH value to 2-5, and reacting to obtain the sulfonated polyborosiloxane flame retardant. The sulfonated polyborosiloxane provided by the invention is simple in preparation process and safe in process, and does not involve the use of halogen compounds. The sulfonated polyborosiloxane prepared by the method has the characteristics of good thermal stability, high carbon residue, self-extinguishing property and the like, and has an excellent effect of expanding to form carbon.

The invention relates to the field of food and health care products, and discloses a composition for dispelling effects of alcohol and protecting liver, which comprises 20-100 parts of ampelopsis grossedentata leaf extract; 50 to 200 parts of a radix puerariae extract; 10-50 parts of a semen hoveniae extract; 10-50 parts of a turmeric extract; 10 to 100 parts of a yeast extract; 5-50 parts of a licorice extract; and 5 to 20 parts of pyrroloquinoline quinone disodium salt. The ampelopsis grossedentata leaf extract, the kudzuvine root extract and the hovenia dulcis thunb extract are utilized, alcohol decomposition is promoted, the blood ethanol concentration is reduced, and drunkenness symptoms are relieved. Puerarin improves activity of liver metabolic enzymes, accelerates discharge of ethanol and acetaldehyde, and reduces liver damage. The anti-oxidation effects of dihydromyricetin and PQQ can eliminate alcohol metabolism free radicals and protect liver cells. The components such as puerarin, hovenia dulcis thunb, curcumin and glycyrrhizic acid jointly promote liver cell regeneration, inflammation and oxidative damage are reduced, the levels of ALT and AST in serum are reduced, and liver health is maintained.

The invention belongs to the technical field of material preparation, and particularly relates to a preparation method and application of coal pitch-based porous carbon. The preparation method of the coal pitch-based porous carbon comprises the following steps: (1) in an air atmosphere, performing high-temperature thermal shock treatment on coal pitch for the first time to obtain pre-oxidized pitch; (2) in an inert atmosphere, carrying out second high-temperature thermal shock treatment on the pre-oxidized asphalt to obtain pre-carbonized asphalt; and (3) mixing the pre-carbonized pitch with an activating agent to obtain mixed powder, and performing third high-temperature thermal shock treatment on the mixed powder to obtain the coal pitch-based porous carbon. The preparation method has the beneficial effects that the coal pitch is subjected to pre-oxidation treatment by utilizing high-temperature thermal shock, so that the specific surface area of the coal pitch porous carbon is increased; the pre-oxidized pitch is subjected to pre-carbonization treatment by adopting high-temperature thermal shock, so that the carbon yield and stability of a final product are improved, and the coal pitch-based porous carbon has an ideal porous structure and a relatively high specific surface area.

The invention discloses a preparation process and application of a wear-resistant and high-temperature-resistant cable, and belongs to the technical field of cable material processing. In order to solve the technical problem that in the prior art, the wear resistance, heat resistance and heat conduction performance of cable materials for high-speed trains need to be further improved, the preparation technology of the wear-resistant and high-temperature-resistant cable comprises the following steps that a plurality of cable cores are arranged in the length direction of a hemp rope with the hemp rope as the axis, and rubber strips are filled among the cable cores; and then a polyester tape and cable core mixture is wrapped outside the plurality of cable cores and the filling strips. The composite graphene, polysiloxane and modified magnesia are used as reinforcing materials to reinforce a polyethylene base material, so that the mechanical strength and wear resistance of the cable material are effectively improved, and the flame retardant property, heat resistance and heat-conducting property of the cable material are also improved.

The invention provides a PtRu-based composite bifunctional catalyst and a preparation method and application thereof, the PtRu-based composite bifunctional catalyst comprises a carrier and a load loaded on the carrier, and the carrier comprises a graphitized carbon carrier; the load comprises platinum ruthenium-based metal particles and a compound with a chemical formula of HxMO3, wherein M comprises W or / and Mo. According to the PtRu-based composite bifunctional catalyst disclosed by the invention, the metal PtRu plays a role in resisting CO poisoning, and the HxMO3 plays a role of a proton acceptor, so that a hydrogen oxidation reaction is promoted. Meanwhile, the HxMO3 can strengthen a difunctional mechanism of a carbon monoxide oxidation reaction, and the CO poisoning resistance of the catalyst is improved. In addition, the graphitized carbon carrier with a specific graphite microcrystal size has good high-potential corrosion resistance and metal dispersibility, and metal agglomeration and performance degradation of the catalyst caused by high-potential corrosion of the carrier are greatly slowed down.

The invention discloses a coated titanium anode and an embedding preparation method thereof, and belongs to the technical field of coated titanium anodes, metal salt powder, an organic additive and inert filler are fully mixed to form embedding agent powder, the mass fraction of metal salt is 45-59%, the mass fraction of the organic additive is 1-5%, and the mass fraction of the inert filler is 40-50%; the sintering treatment is as follows: the pretreated titanium substrate is completely immersed in the embedding agent powder, the sintering temperature is 400-600 DEG C, the sintering time is 1-3 hours, and the heating rate is 5-10 DEG C / min. According to the method, low-temperature sintering is realized by precisely regulating and controlling the components and the proportion of the embedding medium and combining process parameters such as low-temperature sintering, and the damage to a titanium substrate is avoided; and meanwhile, the coating binding force of the titanium anode is improved, the service life of the titanium anode is prolonged, and technical innovation and industrial value are achieved.

The invention relates to the technical field of metallurgy, in particular to a preparation method of composite calcium ferrite, which comprises the following steps: mixing and grinding pretreated industrial copperas and pretreated titanium gypsum to obtain a mixture, or mixing and grinding dried industrial copperas and pretreated titanium gypsum to obtain a mixture; mixing the mixture with water, pressing the mixture into blocks, and drying the blocks to obtain a blocky mixture; and calcining the blocky mixture to obtain the composite calcium ferrite. The titanium gypsum is rich in calcium, sulfur and a part of iron, the industrial copperas are mainly ferrous sulfate, the two solid wastes are mixed and calcined, the mixture is decomposed to generate sulfur dioxide and can be recycled to prepare sulfuric acid, calcium and iron are combined to form composite calcium ferrite, valuable elements such as calcium, sulfur and iron in the titanium gypsum and the industrial copperas can be fully utilized, and the industrial copperas can be recycled. And resource comprehensive utilization of typical solid wastes in the titanium dioxide production industry is realized.

The utility model relates to the technical field of waste circuit board recovery equipment, and discloses waste circuit board precious metal extraction equipment which comprises a decomposition barrel, a waste barrel located in the decomposition barrel and a mounting seat located on the outer side of the decomposition barrel. The supporting ring is arranged at the top end of the inner wall of the decomposition barrel, multiple sets of positioning holes are formed in the supporting ring, and multiple sets of positioning rods penetrating into the positioning holes are arranged at the top of the outer side of the waste barrel. According to the waste circuit board processing device, decomposition liquid and broken waste circuit boards can be conveyed into the barrel body and the waste barrel through the liquid inlet pipe and the feeding hopper respectively, the waste circuit boards in the waste barrel can be stirred through the rotating motor, the rotating shaft and the stirring rods, and dissolution of precious metal on the waste circuit boards can be accelerated; and the waste barrel and the decomposition barrel can be disassembled and assembled through a positioning rod, a positioning hole and a supporting ring, so that the waste circuit board and the decomposition liquid can be conveniently separated.

The invention discloses a graphene-coated hard carbon negative electrode material and a preparation method thereof, and belongs to the technical field of hard carbon negative electrode materials. The preparation method of the graphene-coated hard carbon negative electrode material comprises the following steps: carrying out pretreatment and three-step soaking on coconut shells, carrying out biomass carbonization, mixing with a microbial suspension, and adsorbing to obtain a microbial adsorption type hard carbon material; and then carrying out surface treatment, chemical vapor deposition, impregnation, secondary chemical vapor deposition and annealing treatment on the microbial adsorption type hard carbon material to obtain the graphene coated hard carbon negative electrode material. The negative electrode material prepared by the method is high in first discharge capacity, high in first coulombic efficiency and good in cycle performance.

The invention discloses a preparation method of red-mud-based artificial soil, which comprises the following steps: A, mixing and stirring red mud, calcium-based solid waste, industrial ferric salt, manganese slag and water according to a mass ratio, and fully stirring to fully react to obtain dealkalized red mud; wherein the mass ratio of the red mud to the calcium-based solid waste to the industrial ferric salt to the manganese slag to the water is 100: (1-5): (0.1-1): (0.1-1): (10-50); b, mixing the dealkalized red mud with the fly ash, the biomass and the stable organic solid waste, and fully and uniformly stirring to obtain a mixture; and C, naturally stacking the mixture and fertilizing. The method can accelerate the red mud harmlessness and soil treatment process, and reduces the environmental pollution risk of the storage yard.

The invention relates to a method for preventing and controlling antibiotic and drug-resistant gene transmission in a soil vegetable system based on a charcoal-based composite material. According to the invention, agricultural waste corn straw is used as a precursor, magnetic iron and graphite phase carbon nitride are loaded through a hydrothermal reaction, and then high-temperature calcination is carried out to prepare a FeBC / g-C3N4 (short for FeBC / g-CN) biochar composite material which is used as a soil conditioner. The prepared biochar modifier is applied to polluted farmland soil to be treated, sufficient and uniform mixing is conducted, vegetable seeds are sown, illumination is provided, and a certain water content of the soil is kept, the prepared biochar modifier is simple in preparation method and application method and remarkable in effect, the reduction rate of tetracycline in soil vegetables is increased through use of the biochar modifier, and the soil quality is improved. Meanwhile, transmission of antibiotics and drug-resistant genes in a soil vegetable system is blocked and controlled.

The invention discloses an integrated device for coupling in-situ remediation and membrane filtration water purification of a reservoir water body, which realizes effective removal of pollutants such as ammonia nitrogen, iron, manganese and the like by fusing the advantages of a gravitational flow ultrafiltration (GDM) technology and a water-lifting aeration technology and utilizing the biochemical action of a biological filter cake layer of the GDM technology and an ultrafiltration membrane interception mechanism, so that the water body in-situ remediation and membrane filtration water purification of the reservoir can be realized. Meanwhile, by utilizing the in-situ remediation capability of a water lifting aeration technology, the ecological environment of a water body is improved, and the release of endogenous pollution is reduced; the device continuously runs for a long time under the designed flux, and the membrane pollution is controlled without adopting hydraulic backwashing and chemical agent cleaning, so that the use of chemicals is reduced from the source, pipelines, water pumps and valve accessories for backwashing and chemical cleaning are not needed, the cost can be effectively saved, and the workload of operation, operation and maintenance is greatly reduced; in addition, solar energy is adopted as a power source, green power supply is achieved, energy consumption is reduced, and negative effects on the environment are effectively relieved.