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54results about How to "Efficient degradation" patented technology

Newly isolated strain of neocallimastix and its application in preparation of feed additive for degrading coumarin

ActiveCN116555044BHigh efficiency in degrading coumarinEfficient degradationBiotechnologyNeocallimastix
This invention discloses a strain of *Neocallimastix* LGM-ZA9 and its application in the preparation of a coumarin-degrading feed additive. *Neocallimastix* LGM-ZA9 is classified as *Neocallimastix* sp., with accession number CGMCC No. 17592, and its optimal growth temperature is 39℃. The fermentation broth of *Neocallimastix* LGM-ZA9 can be used to degrade the anti-nutritional factor coumarin. The method is simple: the coumarin-containing material to be degraded is mixed with the fermentation broth, sterilized, and then the fermentation broth is added for anaerobic fermentation to degrade the coumarin. This preparation method is simple, highly operable, and can significantly reduce the coumarin content, providing a new method for feeding ruminants with sweet clover as a high-quality forage.
Owner:NANJING AGRICULTURAL UNIVERSITY

A modified zero-valent iron / biochar composite material with oxygen-rich vacancies and its application

ActiveCN119685023BMake up for the shortcomings of insufficient specific surface areaavoid passivationOther chemical processesContaminated soil reclamationOxygen vacancyZerovalent iron
This invention relates to a modified zero-valent iron / biochar composite material with oxygen-rich vacancies and its application. The modified zero-valent iron / biochar composite material comprises a biochar carrier and zero-valent iron loaded on the biochar carrier. The surface of the zero-valent iron is coated with sulfur-containing iron compounds and / or boron-containing iron compounds, and the surface of the zero-valent iron contains abundant oxygen vacancies. The modified zero-valent iron / biochar composite material is specifically prepared by the following method: dispersing the biochar carrier and zero-valent iron in oxygen-free water and grinding; adding a sulfur source or boron source to the ground suspension, stirring and grinding thoroughly, and drying; subsequently soaking in a reducing solution, followed by high-temperature calcination and cooling to obtain the modified zero-valent iron / biochar composite material. Compared with the prior art, the modified zero-valent iron / biochar composite material prepared by this invention can be used synergistically with compound oxidants to achieve effective remediation of organically contaminated soil.
Owner:SHANGHAI INST OF TECH

A method for in-situ synthesis of visible light photocatalytic geopolymers from vanadium-containing solid waste

PendingCN122076421Acompletely absorbedWide variety of sourcesCatalyst activation/preparationCement productionSlurryVisible light photocatalytic
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.
Owner:WUHAN UNIV OF SCI & TECH

A wastewater treatment device based on algal-bacterial symbiotic photobioreactor

PendingCN122276994AEfficient degradationExtend the flow pathPhotobioreactorMechanical engineering
This invention relates to the field of wastewater treatment technology, and more particularly to a wastewater treatment device based on an algae-bacteria symbiotic photobioreactor, comprising: a mounting frame and a treatment tank fixed inside the mounting frame. The treatment tank contains a reaction assembly, which includes a drive rod and a reaction spiral blade. The drive rod is vertically positioned inside the treatment tank, and the reaction spiral blade is fitted onto the drive rod. The reaction spiral blade has reaction holes and contains a biological reaction layer. A collection hood, shaped like an inverted frustum, is located at the bottom of the treatment tank. Two symmetrical outlets are located at the bottom of the collection hood. A collection assembly, comprising a sealing ring, a guide ring, a movable rod, and a collection box, is located below the collection hood. The sealing ring is fixedly connected to the bottom side of the collection hood. This invention causes the generated sediment to converge centripetally at the bottom of the treatment tank, avoiding the formation of eddy current dead zones.
Owner:SUZHOU INST OF TRADE & COMMERCE

A peanut oil aflatoxin degradation machine

This utility model discloses a peanut oil aflatoxin degradation machine, including a casing with an oil inlet and an oil outlet. The casing also houses an oil inlet pump, an oil pan, a weighing device, an oil outlet pump, an ultraviolet lamp, and a control unit. The oil pan has an oil inlet end and an oil outlet end. The oil inlet pump is connected to the oil inlet end of the oil pan via an oil delivery pipe. The oil outlet end of the oil pan is connected to the weighing device via an oil delivery pipe. The oil outlet pump is connected to the weighing device and the oil outlet end via an oil delivery pipe. The ultraviolet lamp is used to sterilize and disinfect the peanut oil in the oil pan. The oil inlet pump, ultraviolet lamp, weighing device, and oil outlet pump are all electrically connected to the control unit. This utility model uses ultraviolet lamps to sterilize and disinfect peanut oil, achieving efficient degradation of aflatoxin in peanut oil without introducing chemical residues, ensuring the quality and safety of peanut oil for consumption. It is simple to operate, has high processing efficiency, and low cost.
Owner:MAOMING HEYING MACHINERY EQUIPMENT CO LTD

Mo, k co-doped mn02 catalyst, preparation method thereof and method for degrading pollutants by activating peroxyacetic acid

ActiveCN117920194BImproved ability to generate advanced oxidatively active speciesSolve the ability to degrade organic pollutantsWater contaminantsCatalyst activation/preparationPtru catalystSinglet oxygen
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.
Owner:SICHUAN UNIV

A Cu-confined polymer microsphere catalytic material for iron tailings, its preparation method, and its application in degrading organic matter.

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.
Owner:NORTHEASTERN UNIV CHINA

A gonicoccus strain yf2 degrading polyethylene mulch, microbial preparation, method and application

PendingCN122081141Aovercome inertiaincrease polarityBacteriaSolid waste disposalBiotechnologyAlkane
This invention relates to the field of microbial technology, disclosing a *Strombus adhesiveus* strain YF2 that degrades polyethylene mulch film, microbial preparations, methods, and applications, addressing the problems of insufficient efficacy and unclear mechanisms in existing PE-degrading strains. This strain is deposited at the Guangdong Provincial Microbial Culture Collection Center, with accession number GDMCC No:67086, and a deposit date of October 13, 2025. Through systematic parallel comparisons, strain YF2 significantly outperformed the control strain in PE degradation efficiency, biofilm formation ability, and induction of PE polymer oxidation. Genomic analysis showed that YF2 contains a genetic network encoding key degrading enzyme systems such as nitroreductase, cytochrome P450, and alkane monooxygenase, and particularly possesses unique nitrification degradation potential. Microbial preparations prepared based on this strain can be used for the bioremediation of PE mulch film residues in farmland soils, compost, and other environments.
Owner:SHIHEZI UNIVERSITY

A biological agent for improving waste fermentation environment of waste pool of waste incineration plant

PendingCN122146683AExcellent dual functionhigh activityFungiBacteriaRhodotorulaWaste oil
The application discloses a kind of biological inoculums for improving fermentation environment of waste pool of waste incineration plant, solve high kitchen garbage heavy metal pollution problem.It uses "functional strain + kitchen waste oil modified biochar carrier" collaborative design, functional strain includes Yarrowia lipolytica, Aspergillus oryzae, salt-tolerant lactic acid bacteria and Rhodotorula, Rhodotorula can efficiently passivate Pb 2+ , Cd 2+ , strain synergistic degradation of oil and starch.Application of percolate soluble heavy metal content reaches standard, reduces heavy metal treatment reagent dosage 25%-30%, reduces fly ash "hazardous waste" disposal ratio, realizes fermentation improvement and heavy metal passivation integration, with environmental protection and economic benefits.
Owner:NANJING XINYE ENERGY TECH

A method for the degradation of phthalate contaminants using photoactivated periodate

This invention belongs to the field of wastewater treatment technology, specifically relating to a method for degrading phthalic acid ester pollutants using photo-activated periodate. The method involves adding periodate to the reaction system and applying light irradiation. Under light, periodate continuously generates various free radicals, which can attack phthalic acid esters, achieving efficient degradation. Compared with existing advanced oxidation technologies, this invention does not require high-energy ultraviolet light sources or additional catalysts. The reaction conditions are mild, energy consumption is low, and the process is simple. It is suitable for the removal of phthalic acid ester pollutants from industrial wastewater, domestic sewage, and surface water, and has promising engineering application prospects.
Owner:CHONGQING UNIV +1

Aspergillus aculeatus for efficiently producing ester-type catechin degraded by tannase and application thereof

ActiveCN121555327Breduce manufacturing costIncrease enzyme activityFungiHydrolasesBiotechnologyTea catechin
This invention belongs to the field of food enzyme engineering technology, specifically relating to a strain of *Aspergillus echinococcosis* that produces highly efficient ester-degrading catechin tannin enzymes and its applications. The strain is classified as *Aspergillus echinococcosis* (…). Aspergillus aculeatus LS06, with accession number CGMCC No. 42170. The *Aspergillus echinococcosis* strain provided by this invention serves as a tannin-producing strain, using inexpensive agricultural waste bran as raw material, resulting in low production costs. Simultaneously, the produced tannins exhibit high enzyme activity and high catalytic efficiency for ester-type catechins, demonstrating promising application prospects in tea beverage processing.
Owner:TEA RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES

Aluminum-cobalt bimetallic ionic liquid modified biochar catalyst, and preparation method and application thereof

This invention discloses an aluminum-cobalt bimetallic ionic liquid-modified biochar catalyst, its preparation method, and its application, belonging to the technical field of water pollution control and environmental functional materials. The method involves mixing an aluminum-cobalt bimetallic ionic liquid with biomass raw materials, followed by one-step or two-step pyrolysis, then cooling, washing, and drying to obtain the aluminum-cobalt bimetallic ionic liquid-modified biochar catalyst. This method eliminates the need for prior preparation of a biochar precursor followed by secondary loading, enabling simultaneous pore formation, nitrogen doping, aluminum-cobalt bimetallic active site construction, and metal-oxygen coordination structure formation of biochar in a single pyrolysis process. The process is simple, and the raw materials are readily available. The resulting catalyst possesses a high specific surface area, abundant surface defects, and stable aluminum-cobalt synergistic active sites, enabling efficient activation of persulfate and rapid degradation of norfloxacin under near-neutral conditions. It also exhibits good anti-interference properties, cycle stability, and potential for practical water body application.
Owner:CHINA AGRI UNIV

Preparation method and application of porous structure CuFe2O4

The application relates to the technical field of water pollution treatment, in particular to a preparation method and application of porous structure CuFe2O4. The preparation method of the porous structure CuFe2O4 comprises the following steps: stirring and mixing copper salt, iron salt and a pore-forming agent, grinding into a gelatinous product, calcining the gelatinous product for 1.5-3 hours, naturally cooling to below 100 DEG C and taking out, and finally fully grinding and sieving to obtain the porous structure CuFe2O4; wherein the molar ratio of the copper salt to the iron salt is 1:2-2.1; and the molar ratio of the copper salt to the pore-forming agent is 1:1.5-1.55. The preparation method of the porous structure CuFe2O4 and the application of the porous structure CuFe2O4 in activated sulfite degradation of organic pollutants have the advantages of high efficiency, environmental protection, economy and the like, and have important significance for the field of water treatment.
Owner:XIAMEN UNIV OF TECH

A method and device for constructing a microdroplet self-fenton system

This invention discloses a method and apparatus for constructing a microdroplet self-Fenton system. The construction method includes the following steps: mixing an iron salt with an acidic solution, and subjecting the resulting mixed solution to ultrasonic atomization to form micron-sized droplets, thereby obtaining the microdroplet self-Fenton system. The construction apparatus includes an atomizing reactor for storing the mixed solution and an ultrasonic generator for providing ultrasonic waves. The microdroplet self-Fenton system constructed by this invention has the following advantages: good adaptability, enabling the acquisition of a self-Fenton system under conditions of no light, no catalyst, and no sacrificial agent; it helps to increase the generation rate and yield of ·OH in the system, giving the system stronger redox capabilities and enabling efficient degradation of organic pollutants, providing important guidance for promoting the effective treatment of organic pollutant wastewater; the process is simple, easy to operate, low in cost, environmentally friendly, suitable for industrial applications, and facilitates the effective treatment of organic pollutant wastewater.
Owner:HUNAN UNIV

Preparation method of double perovskite La2CoFeO6 and its application in degrading odor pollutants

PendingCN122298437AImprove photocatalytic degradation performanceTake advantage ofOxygen vacancyGlycol synthesis
This invention relates to a method for preparing double perovskite La2CoFeO6 and its application in degrading odorous pollutants, comprising the following steps: dissolving La(NO3)3·6H2O, Co(NO3)2·6H2O, and Fe(NO3)3·9H2O in a mixed solution of deionized water and ethylene glycol or deionized water and citric acid, adjusting the pH, and then mixing thoroughly; placing them separately in a high-pressure reactor and heating or evaporating the moisture and drying in an oven to obtain precursor powder or dry gel; then calcining at high temperature and cooling to obtain double perovskite La2CoFeO6 powder. The R3c phase La2CoFeO6 material provided in this application, by combining crystal structure regulation with oxygen vacancy defect engineering, establishes a synergistic enhancement mechanism of "structure optimization + defect regulation" for double perovskite materials, significantly improving the photoresponse capability and catalytic performance of the material, providing a new technical path and material design idea for the design of subsequent high-performance photocatalysts for odor pollution control.
Owner:TIANJIN ORIENTAL GREEN TECH DEV CO LTD +1

Proteolytic chimera targeting hiv protease and uses thereof

PendingCN122381204AEfficient degradationBuild a highly resistant barrierArginineUbiquitin ligase
The application discloses a proteolysis body (PROTAC) targeting HIV protease and application thereof, the PROTAC is a polypeptide structure, a general formula is R1-L-E3L or R1-L-E3L-R2, wherein R1 is a target ligand of HIV protease, L is a GSGS linker, E3L is a ligand of VHL (von Hippel-Lindau) E3 ubiquitin ligase, and R2 is a D-configuration arginine cell penetration peptide; the PROTAC can recruit E3 ligase, specifically induce ubiquitination and degradation of HIV protease in a proteasome-dependent manner; the application further provides a gene encoding the PROTAC, a recombinant carrier, a pharmaceutical preparation and application of the gene in preparation of an anti-AIDS drug.
Owner:HENAN NORMAL UNIV

System and method for solar oxidation degradation of organic wastewater and hydrogen production

The application discloses a system and method for solar oxidation degradation of organic wastewater and hydrogen production, and the whole system comprises a membrane separation subsystem, a solar heat collection subsystem and a multi-electrode reverse electrodialysis subsystem. The system takes solar energy as a driving force, takes high-salt organic wastewater as a working solution, realizes hydrogen production and organic matter degradation by means of a concentration difference of the working solution, separates the high-salt organic wastewater into high-salt wastewater and organic wastewater, and realizes effective utilization and efficient degradation of the high-salt organic wastewater by combining solar energy and reverse electrodialysis. That is, the system can completely mineralize the organic matter in the wastewater and produce high-purity hydrogen, and realizes efficient and high-quality utilization of solar energy.
Owner:HENAN UNIV OF SCI & TECH

A corn kernel harvester with a blade cutter box

ActiveCN224267437UIncrease Fragmentation Ratepromote degradationMowersAgricultural engineeringSprocket
This utility model discloses a corn kernel harvester with a cutter head box, specifically relating to the field of agricultural machinery. It includes a head box power transmission assembly, comprising a main housing. A main drive shaft is rotatably mounted through the inner cavity of the main housing. Two sets of bevel gear shafts are located on one side of the main housing, and the bevel gear shafts are rotatably connected to the main housing via a toothed sprocket I. A transmission component is mounted on the main drive shaft. This utility model, through the arrangement of an upper and lower cutter assembly inclined relative to the main housing, achieves a high-low layered cutting process for straw, increasing the fragmentation rate. The inclined cutter head further enhances the efficiency of shredding the stalks. The lower cutter assembly, designed to be detachable for use as needed, expands the harvesting range of the head box, enabling the stalks to be processed into easily degradable and return-to-the-field fragments in a single operation. This effectively cuts and crushes straw, optimizes soil structure, and promotes the recycling of organic matter.
Owner:SHANDONG JIANGHUA MASCH MFG CO LTD

Pseudomonas aeruginosa with high efficiency of degrading dichloroacetic acid and application thereof

The present application belongs to the field of microbial technology, and relates to a high-efficiency dichloroacetic acid degrading Pseudomonas aeruginosa and application thereof, the high-efficiency dichloroacetic acid degrading Pseudomonas aeruginosa is named SJTX, and the preservation number is CGMCC No. 36706. The Pseudomonas aeruginosa SJTX in the present application can grow by using dichloroacetic acid as a sole carbon source, can efficiently degrade dichloroacetic acid, and the degradation rates of the Pseudomonas aeruginosa on 10 mg / L, 50 mg / L and 100 mg / L dichloroacetic acid within 24 hours are 45.8%, 42.4% and 24.4% respectively, and the Pseudomonas aeruginosa has good adaptability to high salt and heavy metals, and is suitable for effectively removing and bioremediating dichloroacetic acid pollutants in water bodies, soil and other environments. The strain of the present application has good comprehensive performance in the degradation efficiency of dichloroacetic acid and environmental tolerance compared with the dichloroacetic acid degrading strains found.
Owner:SHANGHAI JIAOTONG UNIV

Ozone / perphosphate-based oxidation pretreatment method and its application

ActiveCN120423682BEfficient degradationEffective sediment removalPretreatment methodPhosphate
The application discloses an ozone / perphosphate-based oxidation pretreatment method and application thereof, and the method comprises the following steps: adding ozone and perphosphate into a drinking water source, the ozone dosage is 2.0-5.0 mg / L, the perphosphate dosage is 5.0-10.0 mg / L; reacting for 5-10 minutes; and removing the end product phosphate through a coagulation and sedimentation process. When the initial concentration of an odor substance in water is less than or equal to 100 ng / L, the method can reduce the odor substance to below the odor threshold, and has no influence on water quality parameters such as total organic carbon and color. In the application, the end product of ozone oxidation is oxygen, and the end product of perphosphate is phosphate, which can be effectively removed through a subsequent conventional water treatment process (coagulation and sedimentation). The application has the advantages of simple operation, low cost, environmental friendliness and the like, and is suitable for pretreatment of various drinking water sources such as surface water and underground water.
Owner:HOHAI UNIV

A type of Klebsiella variegata and its applications

ActiveCN117343864BThe cultivation method is simplefast growthBacteriaMicroorganism based processesBiotechnologyMicroorganism
This invention belongs to the field of environmental microbiology, specifically a type of Klebsiella variicola and its applications. Klebsiella variicola, strain IFPBD3, is deposited at the China General Microbiological Culture Collection Center (CGMCC) on May 25, 2023, with accession number CGMCC No. 27461. The rice straw degrading bacteria produced by the technical solution of this invention can effectively degrade rice straw, significantly increase straw fertility, and improve straw utilization rate.
Owner:SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI

A method for preparing dendritic ternary SrCO3-TiO2 / CdS composite material, the resulting material, and its applications.

ActiveCN117983265BImproves light-harvesting capabilitiesHigh utilization rate of visible lightPhysical/chemical process catalystsWater/sewage treatment by irradiationGreen chemistryNanocomposite
This invention belongs to the field of nanocomposite material preparation and application technology, and discloses a method for preparing and applying a dendritic ternary SrCO3-TiO2 / CdS composite material. First, SrCO3-TiO2 nanoparticles are synthesized using a simple hydrothermal one-pot method with tetrabutyl titanate and Sr(NO3)2 as raw materials. These nanoparticles are then dispersed in deionized water to form a suspension. Finally, a dendritic ternary SrCO3-TiO2 / CdS composite material is prepared using an in-situ hydrothermal growth method. The dendritic ternary SrCO3-TiO2 / CdS composite material prepared by this invention can be used to produce hydrogen peroxide under visible light and simultaneously degrade oxytetracycline. The dendritic ternary SrCO3-TiO2 / CdS composite material prepared by this invention forms a unique dendritic structure by combining SrCO3-TiO2 composite particles with CdS. By utilizing the synergistic effect among the three, the transport and separation of photogenerated electron pairs at the interface are accelerated, and their recombination is effectively inhibited, thereby improving the catalytic activity of the dendritic ternary SrCO3-TiO2 / CdS composite material. It has broad application prospects in the synthesis of green chemicals and water pollution treatment.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

Bacillus plasmid and its application in skatole degradation

PendingCN122256396ABreaking through the limitations of cross-strain applicationExpand the scope of resourcesBacteriaMicroorganism based processesBiotechnologyNucleotide
The present application relates to a kind of plasmid for endowing bacillus to degrade skatole function and its application, belong to agricultural environment microorganism and genetic engineering technical field, to solve the existing skatole management high cost, easy to produce secondary pollution, part of degradation strain exists biological safety risk, and the genetic element of natural degradation strain is difficult to cross-strain application problem.The present application discloses the plasmid of nucleotide sequence as shown in SEQ ID NO.1, by the plasmid is transformed into bacillus competent cell, is cultivated in M9 solid medium containing skatole and positive clone detection obtains recombination bacillus, it is inoculated with 0.5% to 5% inoculation amount in the medium containing 0.05 to 0.2g / L skatole, under the condition of 30 to 37 DEG C, 120 to 250rpm 4 to 48h can be degraded skatole.The present application is mainly used for the skatole deodorization of breeding manure and the like scene, provides safe controllable, efficient and scalable biological technology scheme.
Owner:AGRO BIOLOGICAL GENE RES CENT GUANGDONG ACADEMY OF AGRI SCI

Alkaline enhanced copper-based material activated peroxy monosulfate water treatment method and device

The application provides a kind of alkali reinforced copper-based material excitation peroxymonosulfate water treatment method and device, it is related to wastewater treatment technical field, the method includes: adding alkali agent, copper-based material, peroxymonosulfate into water to be treated;The alkali agent is sodium hydroxide and / or potassium hydroxide;The copper-based material is copper oxide and / or copper sulfide.The application has the advantages of excellent pollutant treatment effect, mild reaction condition, simple process flow, green environmental protection, energy saving, easy recovery and recycling, etc., realizes the purpose of small dosage of oxidizing agent and catalyst, high utilization rate of oxidizing agent, small amount of metal ion dissolution and pH of effluent reaching standard.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

A wastewater treatment device based on micro-nano bubbles

ActiveCN122079342AStabilizationStable and efficient processingWater/sewage treatment by irradiationWater contaminantsMicro nanoUltrasonic sensor
This invention discloses a wastewater treatment device based on micro-nano bubbles, relating to the field of organic wastewater treatment technology. The device comprises an influent power module, a gas-liquid mixing chamber, a multi-stage micro-nano bubble generator, and a reaction tank connected sequentially. The multi-stage micro-nano bubble generator includes a rotating shearing component and a stationary crushing component. The shearing blades have a hydrophobic passivation layer on their surface, which, together with the ultrasonic transducer in the shell, achieves anti-adhesion and online cleaning. A hydrophilic layer is applied to the annular baffle plate and conical micropores to improve mass transfer and prevent clogging. The reaction tank contains a baffle plate, an ultraviolet light source, and a bottom-guided sludge discharge structure. The baffle plate uses a silver-doped TiO2 photocatalytic coating with nano-CeO2, which synergistically degrades organic matter with the ozone oxidation of micro-nano bubbles. This invention effectively solves the problems of difficult degradation, easy adhesion, and easy clogging of organic matter in the treatment of high-salt phenol-containing wastewater through the synergistic effect of four modules, multiple coatings, and photocatalysis.
Owner:CHENGDU ZHIHE ENVIRONMENTAL PROTECTION TECH CO LTD

Preparation method and trace element regulation method of protein degrading pentachloronitrobenzene pesticide residues

A method for preparing a protein that degrades pentachloronitrobenzene pesticide residues and a method for regulating trace elements are disclosed. The strain used in this method is *Bacillus polymyxa*, deposited at the China General Microbiological Culture Collection Center (CGMCC) under accession number CGMCC No. 7250. The method involves extracting *Bacillus polymyxa* protein with 40% saturated ammonium sulfate, which can be used to degrade pentachloronitrobenzene pesticide residues. The trace element Fe2+ significantly enhances the pentachloronitrobenzene degradation activity of *Bacillus polymyxa*, exhibiting strong adaptability to different terrains and the ability to adjust its working mode in real time according to environmental needs. The *Bacillus polymyxa* pesticide residue-degrading protein prepared by this invention can significantly degrade pentachloronitrobenzene pesticide residues in ginseng. The 40% saturated ammonium sulfate extraction of *Bacillus polymyxa* protein has the effect of degrading pentachloronitrobenzene, and the trace element Fe2+ significantly enhances its ability to degrade pentachloronitrobenzene. 2+ It significantly enhances the degradation of pentachloronitrobenzene by Bacillus polymyxa.
Owner:JILIN AGRICULTURAL UNIV