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53results about How to "Good degradation activity" patented technology
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Special microorganism composite bacterial agent for directly decomposing and fermenting crops straws to generate marsh gas and application method thereof
InactiveCN101775359AGood degradation activityEasy to storeFungiBacteriaBacillus licheniformisVaccination
The invention discloses a special microorganism composite bacterial agent for directly decomposing and fermenting crops straws to generate marsh gas and application method thereof. The special microorganism composite bacterial agent is liquid or solid, and is formed by fermenting, culturing, combining and compositing one or a plurality of bacillus cereus, bacillus subtilis, bacillus licheniformis, bacillus megaterium, bacillus mucilaginosus, bacillus circulans, bacillus sphaerieus, clostridium sporogenes, clostridium acetobutylicum, clostridium barati, clostridium beijerinckii, clostridium thermocellum, trichoderma viride, trichodermareesei and aspergillus niger. Simultaneously, by taking the special microorganism composite bacterial agent as a vaccination bacterial agent, the invention provides an application method for decomposing the crops straws and accelerating the ferment to generate marsh gas; and the microorganism composite bacterial agent-treated crops straws have fast ferment speed, large marsh gas generation quantity, low treating cost and no secondary pollution, can be fermented to generate the marsh gas under the condition of no faeces of poultry, and have very wide application range.
Owner:刘相梅 +1
Carbon-aerogel-carried bimetal organic framework electro-Fenton cathode and preparation method thereof
ActiveCN105110423AEfficient degradationReduce energy consumptionWater/sewage treatment by irradiationWater contaminantsMetal-organic frameworkCombined technique
The invention relates to a carbon-aerogel-carried bimetal organic framework electro-Fenton cathode and a preparation method thereof. The preparation method comprises the following steps: by using a block carbon aerogel as a substrate electrode, carrying out hydrothermal reaction to load a bimetal organic framework onto the substrate electrode, filtering, washing, and carrying out vacuum drying to obtain the carbon-aerogel-carried bimetal organic framework electro-Fenton cathode, wherein the bimetal organic framework is a Fe / Co bimetal organic framework. Compared with the prior art, by combining the photocatalytic technique and electro-Fenton, the carbon-aerogel-carried bimetal organic framework electro-Fenton cathode can degrade organic pollutants by using the higher-efficiency low-energy-consumption advanced oxidation technique, thereby providing a new way for using the electro-Fenton cathode in the photocatalytic / electro-Fenton combined technique for treating nondegradable organic pollutants. The carbon-aerogel-carried bimetal organic framework electro-Fenton cathode has the advantages of simple technical operation, energy saving and high efficiency, and has very wide application range in the field of actual water treatment.
Owner:TONGJI UNIV
Preparation method for hierarchical pore perovskite catalyst
ActiveCN107376924AImprove adsorption capacityLarge specific surface areaGas treatmentMethane captureMetal nitrateNitrate
The invention relates to a preparation method for a hierarchical pore perovskite catalyst. The method comprises the following steps: 1) weighting metal nitrate mixture and complexing agent and mixing, wherein the mole number of the complexing agent is 1-2 times of the sum of the mole number of all the nitrate in the metal nitrate mixture; 2) adding the metal nitrate mixture and the complexing agent into deionized water and stirring under room temperature; 3) heating and stirring the acquired product at 60 DEG C-90 DEG C till forming a wet gel; 4) leaving the wet gel in a standby state, ageing, drying and grinding; 5) sintering for 5h at 800 DEG C; 6) reacting for 2-36h in a reaction kettle at 150-200 DEG C; 7) naturally cooling, filtering and drying; 8) sintering for 1-12h at 600 DEG C. The prepared catalyst has the advantages of excellent absorption property and large specific surface area.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
Preparation method for visible light photocatalyst powder and cloth from bismuth-rich material
ActiveCN108355708AUniform shapeUniform sizeWater/sewage treatment by irradiationWater treatment compoundsEnvironmental resistanceElectrospinning
A preparation method for a visible light photocatalyst powder and cloth from a bismuth-rich material comprises the steps: dissolving the bismuth-rich material and dithiocarbamate in solvents respectively, and adding the dithiocarbamate solution to the bismuth-rich solution drop by drop to produce a precipitate; filtering, washing and drying, to obtain a metal element-doped bismuth dithiocarbamate;dissolving the prepared metal element-doped bismuth dithiocarbamate in a good solvent, adding macromolecules, carrying out electrostatic spinning, and thus obtaining the cloth with a photocatalytic function. The prepared metal element-doped bismuth dithiocarbamate has the advantages of uniform morphology and size, good dispersibility, green and environmental protection, stability in air, water and most solvents, acid and alkali resistance, industrial mass production potential, and excellent photocatalytic pollutant degradation activity, and realizes the direct conversion and reuse of the bismuth-rich material; the photocatalytic cloth can effectively prevent the diffusion of the catalyst powder and realizes the effective recycling of the photocatalyst.
Owner:XI AN JIAOTONG UNIV
Acyl-homoserine lactone degrading bacteria and application of acyl-homoserine lactone degrading bacteria in disease control
ActiveCN108048351APotential for development of biological controlGood degradation activityBiocideBacteriaSignalling moleculesN-Acyl homoserine lactone
The invention discloses acyl-homoserine lactone degrading bacteria and application of the acyl-homoserine lactone degrading bacteria in disease control. The degrading bacteria are Acinetobacter schindleri and particularly refer to an acinetobacter strain XJ-10, the strain is collected in the China Center for Type Culture Collection on 2nd, November, 2017, and the collection number is CCTCC NO:M2017650. The strain can degrade quorum sensing signal molecules, is used for unique carbon source growth, and has a remarkable and rapid degradation effect on the AHLs quorum sensing signal molecules. Thus, microbial quorum sensing communication can be blocked through degradation of the quorum sensing signal molecules, expression of pathogenic factors of pathogenic bacteria is restrained, the purposeof disease control is achieved, and great application potential is achieved in the aspect of controlling the harm of pathogenic bacteria depending on AHLs mediated pathopoiesis. The problem of abuseof chemical pesticide can be solved, and meanwhile a novel strategy is provided for biologically controlling phytopathogen harm.
Owner:SOUTH CHINA AGRI UNIV
Bacillus, hyaluronidase, and uses thereof
ActiveUS20150175991A1Easy to operateNo damage to structureCosmetic preparationsBiocideCytotoxicityHyaluronidase
The present invention provides a bacillus sp. having a deposit access number of CGMCC NO. 5744 and a hyaluronidase produced by the bacillus and the amino acid sequence of the hyaluronidase is shown in SEQ ID NO: 2. The present invention further relates to a process for preparing oligomeric hyaluronic acid or salts thereof or low-molecular-weight hyaluronic acid or salts thereof by using the bacillus or the hyaluronidase produced thereby. The produced oligomeric hyaluronates or low-molecular-weight hyaluronates have advantages such as good transdermal absorption ability, high purity, no cytotoxicity, potent antioxidant ability. The present invention also provides use of the bacillus having a deposit access number of CGMCC NO. 5744, or the hyaluronidase, oligomeric hyaluronates or salts thereof, low-molecular-weight hyaluronates or salts thereof produced by the bacillus in the fields of osmetics, food products and medicines.
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD
Pseudomonas sp. as well as preparation method and application of dual-functional enzyme preparation of pseudomonas sp.
ActiveCN107287134AEfficient degradationGood degradation activityBacteriaCulture processBiotechnologyPolychlorinated biphenyl
The invention relates to pseudomonas sp. as well as a preparation method and application of a dual-functional enzyme preparation of the pseudomonas sp. A pseudomonas sp. ECO-1 strain is preserved in China General Microbiological Culture Collection Center (CGMCC) on March 31, 2017, with the preservation number of CGMCC No. 13960. The pseudomonas sp. ECO-1 strain is obtained by separating from POPs (Persistent Organic Pollutants) polluted soil for the first time; the dual-functional enzyme preparation capable of efficiently degrading polychlorinated biphenyl and atrazine is prepared by utilizing the strain for the first time; especially, the dual-functional enzyme preparation has remarkable degradation activity on the polychlorinated biphenyl which is difficulty degraded under an aerobic condition and the performance is completely different from functions of existing pseudomonas sp. and enzyme preparations thereof; the pseudomonas sp. has a large-scale production and application prospect.
Owner:ECOLOGY INST SHANDONG ACAD OF SCI
Rare earth co-doped BiVO4 photocatalyst with upconversion characteristic and preparing method and application thereof
ActiveCN105148899AWith up-conversion characteristicsThe process is simple and easy to controlWater/sewage treatment by irradiationMetal/metal-oxides/metal-hydroxide catalystsRare-earth elementMicrowave
The invention relates to a rare earth co-doped BiVO4 photocatalyst with upconversion characteristic and a preparing method and application thereof. The preparing method includes the steps that bismuth nitrate pentahydrate and ammonium metavanadate are dissolved in water to prepare mother liquor A and mother liquor B, the mother liquor B is added into the mother liquor A by the molar ratio of Bi:V=1:1 to obtain mixed liquor, the pH value of the mixed liquor is adjusted to be 8, two kinds of rare earth nitrate are sequentially added into the mixed liquor, the molar ratio of total amount of the two rare earth elements: bismuth=(10.52-10.55):100, and finally the rare earth co-doped BiVO4 photocatalyst with upconversion characteristic is prepared through a microwave hydrothermal method in a heat preservation mode. The microwave hydrothermal synthesis technology is adopted for fast synthesizing the rare earth co-doped BiVO4 photocatalyst with high degradation activity and upconversion characteristic, the rare earth co-doped BiVO4 photocatalyst has excellent degradation activity under simulated sunlight, the photocatalysis efficiency of pure-phase BiVO4 powder is greatly improved, and the rare earth co-doped BiVO4 photocatalyst has wide application prospects.
Owner:SHAANXI UNIV OF SCI & TECH
GY2B degrading bacteria immobilizing ball as well as preparation method and application thereof
ActiveCN104593349AImprove degradation efficiencyCompletely degradedWater contaminantsOn/in organic carrierPolyvinyl alcoholUltraviolet lights
The invention belongs to the technical field of microbial degradation of organic pollutants, and discloses a GY2B degrading bacteria immobilizing ball as well as a preparation method and application thereof. The GY2B degrading bacteria immobilizing ball is a gel ball formed by embedding GY2B degrading bacteria by taking a crosslinking polymerization product of polyvinyl alcohol, algin and kaolin as a carrier. The preparation method disclosed by the invention comprises the following steps: (1), sequentially adding polyvinyl alcohol and algin into water, heating, stirring and dissolving respectively, adding kaolin, and stirring and mixing uniformly so as to obtain a mixed solution; (2), cooling the mixed solution to room temperature under irradiation of ultraviolet light, adding a GY2B degrading bacteria suspension, and uniformly stirring to obtain a bacteria embedding solution; and (3), dropwise adding the bacteria embedding solution into a crosslinking solution, and crosslinking, solidifying and condensing to obtain the GY2B degrading bacteria immobilizing ball. The GY2B degrading bacteria immobilizing ball has more thorough, rapid and steady degrading effects to phenol; furthermore, a steady degrading environment can be provided; and the GY2B degrading bacteria immobilizing ball is adaptive to a toxic environment.
Owner:SOUTH CHINA UNIV OF TECH
Rhodococcus sp.QY-2 having low-temperature petroleum degrading function and application thereof
ActiveCN105907675AThe cultivation method is simpleStrong ability to degrade petroleum hydrocarbonsBacteriaWater contaminantsBioremediationPetroleum Pollution
The invention discloses Rhodococcus sp.QY-2 having a low-temperature petroleum degrading function and collected under CGMCC No.11634. The Rhodococcus sp.QY-2 is screened from a sea area polluted by petroleum in North China, can efficiently degrade petroleum at low temperature, especially in extreme environment of 0 DEG C. The Rhodococcus sp.QY-2 can be applied in bioremediation of sea petroleum pollution, especially in petroleum spilling bioremediation at low temperature in the sea area in North China in winter (including glacial period).
Owner:DALIAN MARITIME UNIVERSITY
Cerium-doped catalyst material as well as preparation method and application thereof
InactiveCN104190402AThe synthesis method is simpleGood degradation activityWater/sewage treatmentEnergy based wastewater treatmentPtru catalystPhysical chemistry
The invention aims at providing a cerium-doped catalyst material as well as a preparation method and an application thereof. The preparation method of the material is simple and feasible; the prepared materials are excellent in properties. The cerium-doped catalyst material is applied to catalytic degradation of organic pollutants. A catalyst prepared by the cerium-doped catalyst material is capable of degrading the organic pollutants in sewage with zero energy consumption under the condition that the catalyst does not need to be further processed. The preparation method of the cerium-doped catalyst material comprises the following steps: a, synthesizing pure-phase MoO3 by using a hydrothermal synthesis method; and b, synthesizing a Ce-doped MoO3 material by using an impregnation and calcination method. The catalyst is capable of efficiently degrading the organic pollutants in the environment under the conditions that the catalyst is not illuminated by the light and does not need to be heated; compared with the pure-phase MoO3, the degradation activity of the catalyst with an optimum doping content is improved by over 100 times; the catalyst has a good application prospect.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Pseudoalteromonas polysaccharide degrading bacteria as well as culture method and application thereof
ActiveCN109593672ARich varietyGood degradation activityBacteriaMicroorganism based processesMicroorganismGenus Alteromonas
The invention discloses pseudoalteromonas polysaccharide degrading bacteria as well as a culture method and application thereof. The pseudoalteromonas sp. Q08 is preserved in China General Microbiological Culture Collection Center in Institute of Microbiology, Chinese Academy of Sciences No. 3, Courtyard 1, West Beichen Road, Chaoyang District, Beijing, with the preservation number being CGMCC No.16720. The strain can grow by taking microbe, alga, land plants and various types of animal-derived polysaccharide as an only carbon source, ensures that the species of produced polysaccharide degrading enzyme is rich, belongs to multifunctional polysaccharide degrading bacteria, and ensures that extracellular enzyme preparations prepared from the strain degrade microbe, alga, land plants and animal saccharides, and is obvious in degradation activity for sodium alginate and agarose from alga and HA, CSC and CSE from animals.
Owner:SHANDONG UNIV
Preparation and application method of special microorganism composite bacterial agent for directly decomposing and fermenting crop straws to generate marsh gas
InactiveCN109957527AIncrease productionInitial gas production time shortenedFungiBacteriaClostridium pasteurianumBacillus licheniformis
The invention discloses preparation and an application method of a special microorganism composite bacterial agent for directly decomposing and fermenting crop straws to generate marsh gas. The special microorganism composite bacterial agent is liquid or solid, and is formed by fermenting, culturing, combining and compositing of one or more of bacillus cereus, bacillus subtilis, bacillus licheniformis, bacillus megaterium, bacillus mucilaginosus, bacillus circulans, bacillus sphaericus, clostridium sporogenes, clostridium acetobutylicum, clostridium pasteurianum, clostridium beijerinckii, clostridium thermocellum, trichoderma viride, trichoderma pseudokoningii and aspergillus niger. Meanwhile, by taking the special microorganism composite bacterial agent as an inoculation bacterial agent,the invention provides the application method for decomposing the crop straws and accelerating the fermentation to generate marsh gas; the crop straws treated by the microorganism composite bacterialagent have fast fermentation speed, large marsh gas generation quantity, low treating cost and no secondary pollution, can be fermented to generate the marsh gas under the condition of no any faeces of poultry and livestock, and the application range is quite wide.
Owner:王旭宁
Magnetic Fe2O3/BN composite material as well as preparation method and application thereof
ActiveCN111229281AImprove adsorption capacityEasy to separatePhysical/chemical process catalystsWater/sewage treatment by irradiationPeroxydisulfatePtru catalyst
The invention belongs to the technical field of catalytic material preparation, and particularly relates to a magnetic Fe2O3 / BN composite material and a preparation method and an application thereof.The positive-valent iron ions are adsorbed on BN by utilizing electronegativity of the surface of BN, so that the magnetic Fe2O3 / BN composite material is prepared by a one-pot method and is applied toremoval of antibiotic residues in a water body. The synthesis method is simple, and the prepared magnetic Fe2O3 / BN composite material has good magnetism and is easy to recycle. In a photocatalysis experiment, the magnetic Fe2O3 / BN composite material shows degradation activity superior to that of a monomer. The material can be used as a catalyst for PDS activation; peroxydisulfate (PDS) is subjected to photo-synergistic activation to remove wastewater pollutants, free radicals with strong oxidizing ability generated by PDS activation and free radicals generated by photocatalytic excitation ofFe2O3 realize dual-promotion catalytic action, and application of the iron-based composite material in the field of photocatalysis and in the aspect of PDS activation is further developed.
Owner:JIANGSU UNIV
Disease control strain adopting quorum sensing signal molecules AHLs as target and application thereof
ActiveCN109306336APromote degradationAddress abuseBiocideBacteriaSignalling moleculesBacillus cereus
The invention discloses a disease control strain adopting quorum sensing signal molecules AHLs as a target and application thereof. A preservation number of the strain is GDMCC (Guangdong Microbial Culture Collection Center) 60434. The bacillus cereus has good degradation activity for the quorum sensing signal molecules AHLs, is stable and significant in degradation effect, and has vast application potential in the aspect of preventing AHLs-mediated disease pathogenic bacteria, thereby providing a novel way and method for biological prevention and control of the disease.
Owner:SOUTH CHINA AGRI UNIV
Visible light responsive nitride photocatalytic material and preparation method
InactiveCN105056984AResponsive to visible lightOvercoming Difficulties in Growing Thick InGaNPhysical/chemical process catalystsSemiconductor devicesLight responsiveMethyl orange
The invention discloses a visible light responsive nitride photocatalytic material and a preparation method. The preparation method comprises: growing multiple layers of GaN-based epitaxial thin films in PIN heterostructures on a sapphire substrate by adopting a MOCVD technology; using an InGaN / GaN multiple quantum well or a superlattice as a light absorption layer; and then transferring the GaN-based epitaxial thin films to a conductive substrate, and peeling the sapphire substrate to obtain the photocatalytic material. By adopting the InGaN / GaN multiple quantum well or a superlattice as the light absorption layer, the difficulty of growing thick InGaN by MOCVD is overcome; by doping the In component, the photocatalytic material has visible light responsiveness; photon-generated carriers can be effectively separated as a result of a built-in electric field in the PIN heterostructures, so that the material has a high photovoltaic conversion efficiency, and the catalytic activity of the material is greatly improved. The photocatalytic material illuminated by visible light shows excellent degradation activity to azo dyes such as methyl orange and the like, so that the photocatalytic material can be used as an electrode of a photoelectrochemical pool for degrading organic pollutants.
Owner:PEKING UNIV
Streptomyces polysaccharide degradation bacterium as well as culture method and application thereof
ActiveCN106434475ARich varietyGood degradation activityBacteriaHydrolasesMicroorganismChondroitin Sulfate C
The invention relates to a streptomyces polysaccharide degradation bacterium as well as a culture method and application thereof. A streptomyces sp. CB16 strain is preserved in China General Microbiological Culture Collection Center on April 11, 2016 and the preservation number is CGMCC No.12351. The invention further relates to the culture method and the application of the strain. The strain provided by the invention is a multifunctional polysaccharide degradation bacterium; a compound type polysaccharide degradation enzyme preparation prepared from the strain can be used for degrading plant, seaweed, animal and microorganism polysaccharides and particularly has remarkable degradation activity on hyaluronic acid, chondroitin sulfate A, chondroitin sulfate C and chondroitin sulfate E from connective tissues of higher animals; and the streptomyces polysaccharide degradation bacterium has a potential application value and has functions which are completely different from functions of existing streptomyces sp.
Owner:WUTONG AROMA CHEM CO LTD
System and method for aeration remediation of soil polluted with organic pollutants
InactiveCN110639949AIncrease vitalityImprove repair effectContaminated soil reclamationMicroorganismSorbent
The invention relates to a system and a method for aeration remediation of soil polluted with organic pollutants. The system comprises a plurality of aeration pipes, a plurality of air exhaust pipes,at least one adsorption pad placed in every aeration pipe, a plurality of aeration holes arranged at every aeration pipe and a plurality of air exhaust holes arranged at every air exhaust pipe; when the number of the adsorption pads is more than one, the plurality of adsorption pads are arranged at intervals in a layered mode in the length direction of the corresponding aeration pipe; the aerationpipes and the air exhaust pipes are inserted into soil at intervals, air is injected into the aeration pipes, and the air in the aeration pipes can transport an adsorbent on the adsorption pads intothe soil; microbial strains are arranged on the upper surfaces of the aeration pipes and the air exhaust pipes, and the aeration pipes can supplement oxygen to soil; and the aeration pipes and the plurality of adjacent air exhaust pipes can form air phase circulation.
Owner:FOSHAN JINJINGCHUANG ENVIRONMENTAL PROTECTION TECH CO LTD
Isoepitaxial-growth gallium-nitride-base photocatalytic material and preparation method thereof
InactiveCN106268906ASolve the problem of poor crystal qualityEfficient separationPhysical/chemical process catalystsLattice mismatchGallium nitride
The invention discloses an isoepitaxial-growth gallium-nitride-base photocatalytic material and a preparation method thereof. The gallium-nitride-base photocatalytic material sequentially comprises an n-type gallium-nitride-base substrate, a gallium-nitride-base epitaxial layer and a metal layer from bottom to top. The GaN-base photocatalytic material isoepitaxial growth on the n-type gallium-nitride-base substrate is adopted to solve the problem of poor epitaxial layer crystal quality of the heteroepitaxy growth due to lattice mismatch and thermal mismatch, thereby omitting the step of growing the buffer layer and other steps for enhancing the heteroepitaxy grown crystal quality. By adopting the n-type gallium-nitride-base substrate, the substrate and GaN-base epitaxial layer grown by MOCVD (metal-organic chemical vapor deposition) together constitute the PIN heterostructure, and the photon-generated carrier can be effectively separated under the action of the built-in field, thereby enhancing the catalytic activity of the material. The nitride photocatalytic material has excellent degradation activity for methyl orange and other azo dyes under the irradiation of light, which indicates that the photocatalytic material has potential application value in the field of photocatalysis and has wide application prospects in the aspect of sewage treatment.
Owner:PEKING UNIV
Method for extracting lignin by using mixed solvent two-step method
Disclosed is a method for extracting lignin by using a mixed solvent two-step method. In the method, two mixed solvents with different properties are used as extracting agents for continuous extraction in an inert condition by two steps, so that lignin in lignocellulosic biomass is separated high effectively. The mixed solvents used in the method are separately an alcohol / water system and an ether / water system, and after extraction of the lignin, the used solvents can be recycled can used reused. The method provided by the invention can be used to separate lignin high effectively, and the obtained lignin by separation has good degradation activity, so that the method is easy to use for high-value use of lignin, and has an important application value.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Method of reducing sludge of petrochemical wastewater by aerating combination of ozone and pure oxygen
ActiveCN103663893AAchieve the purpose of reducingSolve the problems of high cost of press filtration into filter cake and large sludge outputSludge treatment by oxidationChemical oxygen demandSludge
The invention relates to a method of reducing sludge of petrochemical wastewater by aerating combination of ozone and pure oxygen, belonging to the technical field of environmental engineering. Aiming at the characteristics of petrochemical wastewater, sludge of petrochemical wastewater is reduced by controlling ozone oxidization and pure oxygen aeration by adopting a special process condition. Ozone oxidization treatment is carried out according to 40-50% of a theoretical output of residual sludge, and the oxidization time is controlled within 28-35 minutes, so that the field sludge reduction efficiency is controlled within 72.7-81.5%. Meanwhile, COD (Chemical Oxygen Demand) of effluent reaches the standard, so that the sludge is reduced, while the method is high in treatment efficiency, low in energy consumption and low in operating cost.
Owner:CHINA PETROLEUM & CHEM CORP
Combining Ozone and Pure Oxygen Aeration to Reduce Petrochemical Wastewater Sludge
ActiveCN103663893BIncrease dissolved oxygen concentrationGood degradation activitySludge treatment by oxidationChemical oxygen demandSludge
Owner:CHINA PETROLEUM & CHEM CORP
Pseudoalteromonas sp.DC-2 having low-temperature petroleum degrading function and application thereof
ActiveCN105907676AGood degradation activityThe cultivation method is simpleBacteriaWater contaminantsGlacial periodPetroleum Pollution
The invention discloses Pseudoalteromonas sp.DC-2 having a low-temperature petroleum degrading function and collected under CGMCC No.11633. The Pseudoalteromonas sp.DC-2 is screened from a sea area polluted by petroleum in North China, can efficiently degrade petroleum at low temperature, especially in extreme environment of 0 DEG C. The Pseudoalteromonas sp.DC-2 can be applied in bioremediation of sea petroleum pollution, especially in petroleum spilling bioremediation at low temperature in the sea area in North China in winter (including glacial period).
Owner:DALIAN MARITIME UNIVERSITY
Alpha-Fe2O3 photocatalyst rich in cationic defect cluster and preparation method and application thereof
ActiveCN110180545ASolve the problem that it is difficult to use visible lightGood degradation activityWater/sewage treatment by irradiationWater treatment compoundsOxygenFe2o3 nanoparticles
The invention discloses an alpha-Fe2O3 photocatalyst rich in cationic defect cluster, and relates to the technical field of semiconductor photocatalysis. The alpha-Fe2O3 nanoparticles rich in cationicdefect cluster are in spindle type nanorod shapes having a size distribution of 80 to 500 nm. The invention also discloses a preparation method and application of the photocatalyst. The invention hasthe beneficial effects of being able to solve the problem that a TiO2 catalyst is difficult in utilizing visible light and has organic matter degradation activity under visible light irradiation, is82%, 47% and 70% higher than alpha-Fe2O3 nanoparticles having no defect, alpha-Fe2O3 nanoparticles rich in iron atom vacancy defect and alpha-Fe2O3 nanoparticles rich in iron atom vacancy defects in the photocatalytic activity respectively, has good cycle stability and can be reused many times.
Owner:HEBEI UNIV OF TECH
Preparation method of mesoporous cobalt-system carbon-silicon nanosphere Fenton catalyst and mesoporous cobalt-system carbon-silicon nanosphere Fenton catalyst and application thereof
InactiveCN109126842AGood removal effectLarge specific surface areaWater treatment compoundsWater contaminantsCobaltSilicon
The invention discloses a preparation method of a mesoporous cobalt-system carbon-silicon nanosphere Fenton catalyst. The method comprises the steps of first mixing solution preparation, solid productpreparation and roasting. The invention further discloses the mesoporous cobalt-system carbon-silicon nanosphere Fenton catalyst and the application of the mesoporous cobalt-system carbon-silicon nanosphere Fenton catalyst in catalytic degradation of organic pollutants. The mesoporous cobalt-system carbon-silicon nanosphere Fenton catalyst prepared by means of the method has the advantages of high catalytic activity, high stability, convenient recovery and recycling and the like.
Owner:GUANGZHOU UNIVERSITY
Fe-doped g-C3N4 photocatalyst as well as preparation method and application thereof
PendingCN113398974AGood degradation activityPromote productionWater/sewage treatment by irradiationWater treatment compoundsPtru catalystPorcine blood
The invention discloses a Fe-doped g-C3N4 photocatalyst and a preparation method and application thereof. The Fe-doped g-C3N4 photocatalyst is obtained from pig blood and melamine through a one-step thermal polymerization method, and the obtained product can be combined with photo catalysis and a Fenton oxidation reaction process under the visible light condition to conduct combined degradation of pollutants; and the photocatalyst prepared in the invention has a stable Fe-N bond in the structure, so that the photocatalyst does not easily react with hydroxide in an alkaline environment to form an iron-based hydroxide precipitate, the defect that the activity of a common Fe-doped photocatalyst is reduced in a Fenton process under an alkaline condition is overcome, and therefore, the catalyst can maintain good degradation activity in a wide pH range.
Owner:JIANGSU UNIV OF SCI & TECH
Disease control bacterial strain targeting quorum sensing signal molecule ahls and its application
ActiveCN109306336BGood degradation activityThe degradation effect is stable and significantBiocideBacteriaDiseaseSignalling molecules
The invention discloses a disease control bacterial strain targeting the quorum sensing signal molecule AHLs, and the preservation number of the bacterial strain is GDMCC 60434. The Bacillus cereus has a good degradation activity against the quorum sensing signal molecule AHLs, and the degradation effect is stable and significant. A new way and method is provided.
Owner:SOUTH CHINA AGRI UNIV
A rare-earth co-doped bivo with upconversion properties 4 Photocatalyst and its preparation method and application
ActiveCN105148899BWith up-conversion characteristicsThe process is simple and easy to controlWater/sewage treatment by irradiationMetal/metal-oxides/metal-hydroxide catalystsRare-earth elementMicrowave
Owner:SHAANXI UNIV OF SCI & TECH
A kind of gy2b degrading bacteria immobilized pellet and its preparation method and application
ActiveCN104593349BImprove degradation efficiencyCompletely degradedWater contaminantsOn/in organic carrierPolyvinyl alcoholUltraviolet lights
The invention belongs to the technical field of microbial degradation of organic pollutants, and discloses a GY2B degrading bacteria immobilizing ball as well as a preparation method and application thereof. The GY2B degrading bacteria immobilizing ball is a gel ball formed by embedding GY2B degrading bacteria by taking a crosslinking polymerization product of polyvinyl alcohol, algin and kaolin as a carrier. The preparation method disclosed by the invention comprises the following steps: (1), sequentially adding polyvinyl alcohol and algin into water, heating, stirring and dissolving respectively, adding kaolin, and stirring and mixing uniformly so as to obtain a mixed solution; (2), cooling the mixed solution to room temperature under irradiation of ultraviolet light, adding a GY2B degrading bacteria suspension, and uniformly stirring to obtain a bacteria embedding solution; and (3), dropwise adding the bacteria embedding solution into a crosslinking solution, and crosslinking, solidifying and condensing to obtain the GY2B degrading bacteria immobilizing ball. The GY2B degrading bacteria immobilizing ball has more thorough, rapid and steady degrading effects to phenol; furthermore, a steady degrading environment can be provided; and the GY2B degrading bacteria immobilizing ball is adaptive to a toxic environment.
Owner:SOUTH CHINA UNIV OF TECH
High-efficiency prothioconazole-degrading bacteria w313, bacterial agent and its application
ActiveCN110904011BImprove toleranceGood degradation activityBacteriaHydrolasesBiotechnologyMicroorganism
The invention provides prothioconazole high-efficiency degrading bacteria W313, an inoculum and application, and relates to the field of biotechnology. The prothioconazole high-efficiency degrading bacteria W313 was classified and named Pseudomonas sp., and was deposited in the General Microbiology Center of the China Microorganism Culture Collection Management Committee on September 11, 2019, and the deposit number is CGMCC No.18486. The prothioconazole high-efficiency degrading bacteria W313 has higher prothioconazole tolerance, better prothioconazole degrading activity and the beneficial effect of prothioconazole hydrolase producing activity.
Owner:HEFEI JIUYI AGRI DEV
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