41results about How to "Efficient degradation ability" patented technology

The invention discloses a fusion enzyme capable of efficiently degrading PET (polyethylene terephthalate) plastic and application of the fusion enzyme. The invention provides a recombinant fusion enzyme. The recombinant fusion enzyme comprises a mutant KL-MHETase of thermophilic carboxylesterase Est30 and a PET (Polyethylene Terephthalate) degrading enzyme FAST-PETase, the amino acid sequence of the mutant KL-MHETase of the thermophilic carboxylesterase Est30 is as shown in SEQ ID NO. 3; the amino acid sequence of the FAST-PETase is as shown in the 284th to 546th amino acids of SEQ ID NO.1 (Sequence Identifier Number 1). The fusion enzyme is used as a biocatalyst, the activity of catalyzing hydrolysis of MHET at 50 DEG C is 52.6 times that of FAST-PETase, and the fusion enzyme has high enzyme activity and thermal stability. PET degradation is catalyzed at the temperature of 50 DEG C, the conversion rate of PET is 90% after 48 hours of reaction, and meanwhile, the TPA content in the product is close to 100%.

The invention discloses a method for degrading dioxin in fly ash and stabilizing heavy metals, which comprises the following steps: carrying out water washing treatment on the fly ash, and carrying out solid-liquid separation to obtain water washing slag; mixing the washed slag with water, adding zero-valent iron and sulfite, carrying out hydrothermal treatment, and carrying out solid-liquid separation to obtain hydrothermal slag and hydrothermal liquid; according to the method for degradation of dioxin in fly ash and stabilization of heavy metal in cooperation with degradation of dioxin in fly ash, under the combined action of zero-valent iron, chlorite and a hydrothermal environment, efficient degradation of dioxin in fly ash can be rapidly achieved under the lower reaction condition, stabilization of heavy metal in fly ash can be synchronously achieved, and the method is suitable for industrial production. The method has the advantages of being low in cost, mild in reaction condition, high in treatment efficiency, good in treatment effect, environmentally friendly and the like, can effectively solve the problems existing in the prior art, provides powerful support for harmless treatment and resource utilization of the waste incineration fly ash, and has wide engineering application prospects.

The invention relates to the technical field of formaldehyde adsorption, in particular to a preparation method of modified activated carbon for removing formaldehyde, which comprises the following steps: S1, performing acidification pretreatment on coconut shell charcoal, and grafting the pretreated coconut shell charcoal with polyethyleneimine to obtain activated carbon loaded with polyethyleneimine; s2, carrying out dipping treatment and cyclohexanol treatment on the activated carbon loaded with polyethyleneimine to obtain functionalized activated carbon; s3, reacting the magnesium-aluminum hydrotalcite with a quaternary ammonium salt solution and a sodium benzenesulfonate solution to obtain modified hydrotalcite; reacting the modified hydrotalcite with a vinyl silane coupling agent to obtain vinyl hydrotalcite; s4, the vinyl hydrotalcite and 4-amino-3-hydrazino-5-sulfydryl-triazole are subjected to a reaction, and secondary modified hydrotalcite is obtained; and S5, dispersing the secondary modified hydrotalcite and the functionalized activated carbon in water, and adding glutaraldehyde to obtain the modified activated carbon. The modified activated carbon prepared by the preparation method disclosed by the invention realizes selective recognition, efficient adsorption and catalytic degradation of formaldehyde.

The present invention relates to a chlorobenzene degrading bacterium and its application in contaminated site remediation, the degrading bacterium is Pandoraea, named Pandoraea sp.XJJ‑1, preserved in China Center for Type Culture Collection, deposit number is CCTCC NO: M 2021057, the screening method includes taking a contaminated soil sample in a closed serum bottle, obtained after acclimation, separation and purification; XJJ‑1 bacteria can completely degrade 100mg / L of chlorobenzene within 11h, and non-toxic intermediates are metabolically accumulated; the bacteria can tolerate and degrade up to 600mg / L of chlorobenzene and the bacteria have a wide growth temperature range (10°C‑37°C), especially under 10‑15°C low temperature conditions, chlorobenzene can still be efficiently degraded; at the same time, the bacteria can efficiently degrade benzene series such as benzene, toluene, ethylbenzene, and has a wide range of degradation substrate characteristics. Pandoraea sp.XJJ‑1 has a variety of pollutants such as chlorobenzene that can be efficiently and completely degraded at low temperatures, and can play an important role in the remediation of contaminated soil and groundwater such as pesticides and chemicals and in the comprehensive management of sites of polluting enterprises.

The invention belongs to the technical field of removal of complex pollutants in water, and particularly relates to microbial composite hydrogel as well as a preparation method and application thereof. The microbial composite hydrogel is prepared from the following components in parts by weight: 1 to 3 parts of polyvinyl alcohol, 3 to 8 parts of polyethylene glycol, 2 to 6 parts of sodium alginate, 0.05 to 0.08 part of nano titanium dioxide, 10 to 25 parts of CaCl2, 10 to 25 parts of boric acid, 5 to 15 parts of potassium persulfate and bacillus velezensis, and the concentration of the bacillus velezensis is 0.35 * 10 < 8 > to 0.6 * 10 < 8 > cells / mL. The microbial composite hydrogel can effectively treat various pollutants in wastewater at the same time, has more efficient pollutant degradation capacity and wider application range, and realizes comprehensive integrated treatment of food wastewater.

The present application relates to the technical field of slag resource processing, more particularly, it relates to a slag recycling secondary treatment process. It comprises the following steps: titanium-containing blast furnace slag recycling and processing, titanium-containing blast furnace slag resource processing, composite adsorbent preparation, resource secondary treatment and composite phase change heat storage material preparation. In the present application, through the resource processing of the titanium-containing blast furnace slag, the titanium-silicon composite matrix material and the mixture powder can be separated from the titanium-containing blast furnace slag, and the titanium-silicon composite matrix material and the mixture powder can be used for preparing the composite adsorbent and used as the matrix material of the composite phase change heat storage material respectively, so as to achieve the purpose of efficient resource utilization of the titanium-containing blast furnace slag and play the characteristics of each component in the titanium-containing blast furnace slag.

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 invention relates to a preparation method of paper, in particular to a preparation method of formaldehyde removal paper. The efficient formaldehyde degradation catalyst is prepared by doping the nanoscale OMS-2 molecular sieve into the activated carbon fiber raw material and loading the metal silver, the formaldehyde adsorption degradation performance of formaldehyde removal paper is remarkably improved, and the persistence and stability of formaldehyde degradation are ensured by uniformly embedding the molecular sieve into paper pulp. Compared with the traditional method of directly adhering the adsorption and degradation components to the surface of the wallpaper, the formaldehyde removal paper prepared by the invention can more effectively remove formaldehyde in indoor air in long-term use, and provides a healthier and more environment-friendly living environment for residents.

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.

The application belongs to the technical field of catalytic dye degradation, and particularly relates to a Co@C / FHP catalyst and a preparation method and application thereof. The preparation method comprises the following steps: dissolving Co(NO3)2.6H2O and terephthalic acid in DMF, adding fruit hair of Platanus (FHP), carrying out hydrothermal reaction, washing and drying, and then calcining under N2 atmosphere to obtain the Co@C / FHP catalyst. In the application, FHP is used as a carrier, Co-MOF is in-situ grown on the surface of the carrier, FHP is carbonized into a porous carbon carrier after pyrolysis, and Co-MOF is converted into metal cobalt nanoparticles wrapped by a carbon layer. The catalyst has the advantages of high dispersion degree of active sites, good stability and good conductivity, and can efficiently activate persulfate to degrade organic pollutants.

The utility model discloses a photovoltaic fluorine-containing wastewater purification device with a TDS (Total Dissolved Solids) removal function. The photovoltaic fluorine-containing wastewater purification device comprises a purification box, a resin adsorption assembly and a cleaning assembly, a first baffle and a second baffle are arranged in the purification box, and a water inlet groove is formed in the first baffle; the resin adsorption assembly comprises a net rack clamped between the first baffle and the second baffle and a hollow pipe, the net rack is filled with chelating resin particles, and the hollow pipe is arranged in the net rack in a sleeving manner; the cleaning assembly comprises a cleaning motor arranged at the top end of the purifying box, a rotating sleeve clamped in the net rack and a linkage component arranged at the top end of the first baffle and used for connecting the cleaning motor and the rotating sleeve; through the combined action of the chelating resin particles and the activated carbon particles, the device disclosed by the utility model realizes effective removal of fluorine ions and TDS in the photovoltaic fluorine-containing wastewater, and improves the discharge safety of the photovoltaic fluorine-containing wastewater.

This invention discloses a strain of Maggi-Megaki yeast with amine-reducing and flavor-enhancing capabilities and its applications, belonging to the field of microbial fermentation technology. This invention screened a strain of Maggi-Megaki yeast Y21 from fermented soybean paste, which has the ability to degrade biogenic amines. This strain can completely degrade tryptamine, phenylethylamine, putrescine, cadaverine, spermidine, and spermine; simultaneously, it also has a strong degradation effect on histamine and tyramine, with degradation rates reaching 69.58% and 65.32%, respectively. Using the Maggi-Megaki yeast Y21 described in this invention for inoculation and fermentation can significantly reduce the content of various biogenic amines in fermented soybean paste under low-to-medium salt conditions, especially showing outstanding removal effects on histamine, tyramine, phenylethylamine, and polyamine biogenic amines, increasing the total amount of volatile flavor compounds, and is suitable for the safe production of low-salt fermented foods.

A degradable thermosetting polyurethane with a catalyst and a synthesis method thereof belong to the technical field of polymer materials. The present invention provides a degradable thermosetting polyurethane with a catalyst, and also provides a synthesis method thereof, which comprises the following steps: (1) adding polyisocyanate and a catalyst into a container, stirring evenly, and then adding polyol, stirring evenly and pre-curing; (2) pouring into an internal mixer and stirring after a gel state appears; (3) after the reaction is completed, cooling to room temperature, and crushing with a pulverizer to obtain white thermosetting polyurethane powder; (4) spraying a release agent into a square mold, after the release agent is dried, spreading the thermosetting polyurethane powder in the mold, transferring it to a hot press for hot pressing, cooling to room temperature after completion, and taking out the mold to obtain a sheet-like thermosetting polyurethane material. The thermosetting polyurethane of the present invention has higher fracture strength, lower activation energy, can relax in a short time, and has more efficient degradation ability.

The invention provides a synthetic microbial community and application thereof in degradation of trehalose and biofuel cells, and belongs to the technical field of synthetic microbiology and biological energy. A synthetic microbial community is constructed by means of synthetic biology, the synthetic microbial community comprises genetic engineering escherichia coli and shewanella, and the synthetic microbial community can realize a complete metabolic pathway from trehalose to acetic acid and an efficient electron transport chain; the method can be used for treating trehalose-rich wastewater or wastes and the like; the synthetic microbial community can be used for a microbial fuel cell, can stably generate current density and power density which are higher than those of a single strain or a natural mixed flora in the microbial fuel cell, and has good practicability.

This utility model relates to the field of wastewater treatment technology, specifically to a quick-release and maintainable MBR membrane wastewater treatment device, comprising: a shell, the inner cavity of which includes a filter chamber, a feeding chamber, and a treatment chamber connected in sequence; an MBR membrane frame, placed inside the treatment chamber, having multiple mounting slots spaced apart on it, and having a latch on each of its two side walls corresponding to the lower part of each mounting slot; an MBR membrane frame, disposed within the MBR membrane frame through the mounting slots, comprising: a handle frame, located at the top center of the MBR membrane frame, with vertical grooves on both sides of its support legs; a sliding member, its middle part elastically connected to the handle frame, its two side arms extending laterally outward through the vertical grooves, bending downward at the outer wall of the MBR membrane frame, the downward ends forming inwardly buckled protrusions positioned below the latches; and an elastic buckle located on the side of the MBR membrane frame, engaging with the latches of the MBR membrane frame. This application aims to provide an MBR membrane wastewater treatment device capable of selectively extracting and quickly disassembling and maintaining MBR membrane modules.

The invention discloses a surface-functionalized coconut fiber and a preparation method and application thereof, the surface of the coconut fiber is subjected to oxidation treatment and is rich in negative charges, and at least three layers of films formed by microorganisms are attached to the surface of the coconut fiber. Compared with the prior art, the invention has the following advantages: (1) efficient adsorption and degradation: through surface functionalization treatment and construction of a multi-layer biological membrane, the specific surface area and adsorption capacity of the coconut shell fiber are greatly improved, so that the coconut shell fiber has significant advantages in capture and removal of micro-plastics, and the removal efficiency reaches 85-95%; meanwhile, microorganisms in the biological membrane further have the capacity of degrading micro-plastics, and accumulation of the microorganisms in the environment is further reduced; (2) the method is suitable for various micro-plastic types and particle sizes, and the application scene is wide; and (3) the economic feasibility is strong: the coconut fiber as a cheap and strong-availability natural material has high application value after being treated by the technology disclosed by the invention, the water treatment cost can be effectively reduced, and the method has wide industrial application prospect.

The present application belongs to the field of microbial technology, and particularly relates to a synbiotic preparation of lactobacillus helveticus, a preparation method and application thereof. The synbiotic preparation of lactobacillus helveticus provided by the present application is a microcapsule preparation prepared by embedding lactobacillus helveticus as probiotics and sialylated human milk oligosaccharide as prebiotics in turn by using sodium alginate and chitosan. The lactobacillus helveticus is lactobacillus helveticus HL88. The lactobacillus helveticus HL88 used in the present application has better lysis activity on sialylated human milk oligosaccharide, and can effectively improve the utilization efficiency of sialylated human milk oligosaccharide. Further, the lactobacillus helveticus and sialylated human milk oligosaccharide are complexly embedded in the present application, which can play a synergistic metabolic role, thereby effectively promoting the brain development process. Therefore, the present application can provide a treatment idea for improving brain development retardation, and can provide a technical basis for developing probiotic drugs for promoting brain development.

The invention relates to the technical field of biology, in particular to enzymatic study related to cellulose degradation. Specifically, the invention relates to an application of a GH5GH6 dual-catalytic structural domain compound enzyme in cellulose degradation. According to the application of the GH5GH6 double-catalytic structural domain compound enzyme in cellulose degradation, the GH5GH6 double-catalytic structural domain compound enzyme is derived from ship maggot symbiotic bacteria. The multifunctional enzyme compound provides an efficient and economic solution for green transformation of agricultural waste treatment, biofuel production and paper pulp industry, remarkably improves the utilization efficiency of cellulose, has important economic value and environmental protection significance, and shows a wide industrial application prospect.

The invention discloses photocatalytic modified asphalt based on g-C3N4 / CeO2 / Bi2O3 / TOM. According to the invention, an organic long chain DC5700 is grafted to the surface of a photocatalyst so as to improve the compatibility of the photocatalyst and an asphalt material. Under different light source conditions, the degradation effects on different components in tail gas are different, and compared with a traditional asphalt material, the degradation effect is more efficient. After the photocatalyst is added into asphalt, the permanent deformation of an asphalt material can be reduced, and the high-temperature stability is relatively good.

The invention discloses an inorganic plastic oxygen composite material and application thereof in a green agriculture and plant maintenance system. The inorganic plastic oxygen composite material is prepared from the following components: an inorganic internal peroxide bridge composite compound, an inorganic mediated catalytic material and a material balancing and stabilizing system, through the synergistic effect of all the components, the generation amount and the utilization efficiency of singlet oxygen are remarkably improved, and then the excellent pest control and pesticide residue degradation effects are achieved. In actual agricultural application, an aqueous solution prepared from the composite material can generate air containing singlet oxygen after being atomized and aerated, the air is uniformly released through a greenhouse pipeline, germ spores in the air can be quickly killed, and meanwhile, the composite material is sprayed on the surfaces of crops, so that mold and gray mold of the crops such as tomatoes and cucumbers can be effectively prevented and treated; the efficient degradation effect on organic phosphorus pesticide residues on the surfaces of the vegetables is realized. The whole technical scheme does not need to use chemical pesticides, meets the development requirements of green agriculture, can effectively reduce pesticide residue pollution, and protects the ecological environment of soil.

The invention discloses a salt-tolerant COD (chemical oxygen demand) efficient degradation complex microbial inoculant and a preparation method thereof in the field of microbial preparations, the complex microbial inoculant is prepared by loading COD degradation bacteria on a modified humic acid carrier and then coating the carrier with complex gel, the modified humic acid carrier is a product obtained by modifying acidified humic acid with cinnamic acid, and the modified humic acid carrier is a product obtained by modifying the modified humic acid with cinnamic acid. The composite gel is PVA (Polyvinyl Alcohol)-sodium alginate composite gel doped with sphagna modified charcoal, and the COD (Chemical Oxygen Demand) degrading bacteria are composite bacteria of bacillus megatherium, sphingomonas paucimobilis and rhodotorula glutinis. The invention further discloses a preparation method of the composite gel. The composite gel is PVA-sodium alginate composite gel doped with sphagna modified charcoal, and the COD degrading bacteria are composite bacteria of bacillus megatherium, sphingomonas paucimobilis and rhodotorula glutinis. According to the salt-tolerant COD efficient degradation composite microbial inoculant provided by the invention, composite bacteria of bacillus megatherium, sphingomonas paucimobilis and rhodotorula glutinis are taken as a functional core, a modified humic acid carrier modified by cinnamic acid is adopted to carry the composite bacteria, and PVA-sodium alginate composite gel doped with sphagna modified charcoal is wrapped, so that the salt-tolerant COD efficient degradation composite microbial inoculant is prepared. The effect that the complex microbial inoculant has rapid and long-acting degradation performance is comprehensively achieved.

The present application belongs to the field of microbial application and feed processing technology, and discloses a bacillus subtilis, named bacillus subtilis YT1, which is preserved in China Center for Type Culture Collection, located at Wuhan University, No. 299, Bayi Road, Wuchang District, Wuhan City, Hubei Province, with a preservation number of CCTCC NO: M 20242767 and a preservation date of December 10, 2024. The present application also discloses a microbial preparation and the application of the bacillus subtilis or the microbial preparation in the processing of silage. The present application first simultaneously possesses high efficient lignocellulose degradation ability, excellent fermentation promotion characteristics, significant antioxidant activity and good probiotic characteristics in a strain of bacillus subtilis. This characteristic enables a single bacterial agent to achieve multiple goals such as fiber degradation, fermentation promotion, oxidation protection, which traditionally requires multiple compounded bacterial agents, and fundamentally overcomes the problems of poor compatibility between strains, unstable synergistic effect and high application cost of existing compounded additives.

The invention relates to the technical field of microorganisms, and discloses a Klebsiella variicola BS2309 strain capable of degrading tetrabutamol and application of the Klebsiella variicola BS2309 strain. The strain is classified and named as Klebsiella variicola; the strain is preserved in China General Microbiological Culture Collection Center (CGMCC), and the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing; the preservation date is March 25, 2024; the preservation number of the strain is CGMCC No. 30141. The strain disclosed by the invention is a degrading bacterium which can be used for degrading a toxic substance butyl cloth, has the characteristics of strong degradation capability and environmental safety, and can be used for biodegrading butyl cloth.

This invention discloses a method for preparing a ferromagnetic single-atom piezoelectric catalyst, the piezoelectric catalyst itself, and its application. The preparation method includes the following steps: weighing ammonium molybdate tetrahydrate and thioacetamide, dissolving them in ultrapure water, and stirring until a colorless and transparent solution is obtained; then adding nickel acetate tetrahydrate, continuing stirring, transferring the mixed solution to a high-pressure reactor, washing after the reaction, and drying to obtain the reaction product; spreading the reaction product evenly in a quartz boat, and finally calcining the reaction product at high temperature under a nitrogen atmosphere, and cooling to successfully prepare the Ni-MoS2 ferromagnetic single-atom piezoelectric catalyst. The piezoelectric catalyst prepared by this invention has good piezoelectric catalytic performance and can achieve high organophosphorus degradation efficiency in the treatment of phenylphosphonic acid wastewater.

This invention relates to the field of microbial technology, specifically to a Vibrio strain that efficiently degrades alginate and its applications. The Vibrio strain that efficiently degrades alginate is deposited at the China General Microbiological Culture Collection Center (CGMCC) and is named (…). Vibrio sp. MBP_DH9, accession number CGMCC No. 35925, accession date September 15, 2025, address: No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing. The Vibrio strain provided by this invention produces an alginate lyase. The alginate lyase degrades alginate to produce only fucoidan, exhibiting high product specificity, which is beneficial for industrial application. Furthermore, this invention conducted further single-factor experiments on the fermentation culture conditions of the Vibrio strain, providing preliminary research for its subsequent large-scale industrial production. The Vibrio strain provided by this invention can efficiently degrade copper algae in a seawater environment, making it an advantageous strain for the resource utilization of brown algae. This strain also possesses environmental advantages.

The invention relates to the technical field of water treatment, and particularly discloses an iron-mud-based modified copper sulfide persulfate catalyst, a preparation method and application. The catalyst is synthesized by adopting a solvothermal reaction method, polyvinylpyrrolidone is taken as a surfactant to regulate and control the morphology of metal sulfide, a flower-shaped nanosphere structure is formed, pretreated iron-containing sludge of a municipal sewage treatment plant is introduced, and a composite material with bimetal and sulfur multi-element active sites is constructed; the preparation process is simple and convenient, the cost is low, resource utilization of the waste iron mud is realized, refractory organic pollutants such as iohexol in a water body can be efficiently degraded, good catalytic performance is shown in the pH range of 3-11, good cycle stability and adaptability to different water qualities are achieved, and the method is suitable for industrial production. And an efficient and low-carbon technical scheme is provided for advanced sewage treatment.

This invention belongs to the field of microbial technology, specifically relating to a highly efficient Arthrobacterium X-6 that degrades sulfonamide antibiotics and its applications. The highly efficient Arthrobacterium X-6 that degrades sulfonamide antibiotics provided by this invention (… Paenarthrobacter sp. Arthroblast X-6, deposited on January 19, 2026, at the China General Microbiological Culture Collection Center (CGMCC) with accession number CGMCC No. 37463, provides this invention. Arthroblast X-6 can grow using seven common antibiotic resistance (SA) species as its sole carbon source, exhibiting a highly efficient degradation capacity for SA species, reaching up to 100%. It not only possesses environmental remediation potential but also minimizes the risk of secondary pollution. Furthermore, it is inexpensive and environmentally friendly, achieving highly efficient microbial control of antibiotic-resistant environmental transmission and providing strain resources and theoretical data for the remediation of SA species contamination.

The invention provides a FeCo-N-C catalyst, a preparation method and application thereof, and a method for degrading antibiotics. The FeCo-N-C catalyst provided by the invention not only can efficiently activate PAA, but also has excellent regeneration performance and stability. Under the conditions that the temperature is 25 DEG C, the pH value is 7.0, the dosage of the catalyst is 0.5 g / L and the initial concentration of PAA is 100 mu M, the degradation rate of sulfamethoxazole within 90 minutes reaches 91.5%. Even if multiple anions and humic acid exist, the catalytic system can still keep efficient degradation capacity. And after the FeCo-N-C catalyst is recycled for four times, the degradation efficiency of the FeCo-N-C catalyst is kept at 70% or above. The invention provides a novel environment-friendly solution for efficiently treating refractory organic pollutants.

The application discloses a self-cleaning composite piezoelectric ceramic membrane and a preparation method and application thereof, and belongs to the field of composite ceramic membranes. The application aims to solve the technical problem of poor anti-biofilm pollution effect of existing ceramic membrane separation technology. The application first prepares a barium titanate ceramic membrane as a base film, and then loads copper oxide one-dimensional nano structures on the piezoelectric ceramic substrate. Since the base film has a large membrane surface area, more catalysts can be combined, thereby providing more active sites for catalytic reaction. The composite membrane significantly improves the hydrophilicity, anti-pollution performance and piezoelectric catalytic self-cleaning performance of the membrane, can quickly and effectively separate pollutants in water, and thereby improves the flux and anti-pollution performance of the membrane.

The invention relates to a Bacillus safensis CY1, which is deposited in the General Microbiology Center of China Microbiological Culture Collection Committee, with the address of Institute of Microbiology, Chinese Academy of Sciences, No. 3, Yard No. 1, Beichen West Road, Chaoyang District, Beijing, and the deposit number is CGMCC No. 27876. The strain has high efficiency in degrading diesel. Under the condition of 30 DEG C, for diesel content of less than 1% in an evaluation medium, the diesel degradation rate in 72 hours reaches more than 99%. The strain is moderately salt-tolerant, and the number of live bacteria is almost not affected when growing under salinity conditions of less than 5%.