59results about How to "Good degradation effect" patented technology

The invention discloses a Rhodococcus ruber strain and an application thereof in treatment of wastewater containing organic pollutants. The strain is named as Rhodococcus ruber ZHY1-6, the preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) No.8173. A microbial agent is prepared from the Rhodococcus ruber strain; the Rhodococcus ruber ZHY1-6 and the microbial agent are used in a treatment technology of treating wastewater containing organic pollutants, so as to degrade the organic pollutants in wastewater; when the strain and the microbial agent are used in treatment of high-salt phenol wastewater, hydrocarbon-containing wastewater and perfume wastewater, cost of wastewater treatment is reduced, and the strain and the microbial agent have important significance in protecting ecological environment and people health.

The invention belongs to the technical field of associated contained soil restoration of environment protection and relates to a novel restoration method for organic contaminated soil. The method comprises the following steps of: using an oxidation reaction system consisting of amino carboxylic acid substances (ethylene diamine tetraacetic acid (EDTA), ethylenediaminedisuccinic acid (EDDS), sodium triglycollamate(NTA) and the like), zero-valent iron (ZVI) and air (AIR) to complex dissolved oxygen through a series of reactions between amino carboxylic acid complexing agent and Fe<2+>; and finally, enabling O-O bond to brake and activate for in-situ generating H2O2, reacting the generated H2O2 with Fenton formed by Fe<2+> to quickly degrade organic pollutant in the soil, and simultaneously degrading the amino carboxylic acid complexing agent. Compared with the traditional Fenton and ZVI/H2O2 type Fenton, the novel oxidation system also can react under neutral and alkaline conditions without additionally adding acid to adjust the acidity; the H2O2 can be generated in situ without being additionally added. The restoration method has the advantages of high degradation rate, environmental friendliness, simplicity in operation and low cost, and is an effective method for quickly and effectively restoring high-concentration organic contaminated site soil.

The invention relates to an organic fertilizer prepared by fermenting dregs of traditional Chinese medicine decoctions and a preparation method thereof. The organic fertilizer is prepared by fermenting 80-120 parts of dregs of traditional Chinese medicine decoctions, 40-100 parts of straws and 10-40 parts of bran with 1.5-8.0 parts of fungus liquid and 0.13-3.0 parts of bacterium liquid. In the organic fertilizer provided by the invention, the contents of organic matters and NKP (nitrogen, phosphorus and potassium) are respectively higher than 50% and 6% and meet and exceed the international requirements, so that soil properties can be effectively improved and multiple aims of yield and efficiency increase and environmental protection can be achieved.

The invention relates to a benzene composite degrading microbe and an immobilized benzene composite microbial inoculum, and a preparation method thereof. The benzene composite degrading microbe is a mixture of Pseudomonas putida RW10S2, Pseudomonas stutzeri, Pseudomonas putida ND6 and Pseudomonas putida BIRD-1. The benzene composite degrading microbe can be immobilized on a floatable degradable immobilized vector to obtain the immobilized benzene composite microbial inoculum. The preparation method is simple; the prepared immobilized benzene composite microbial inoculum has favorable degradation effect on benzenes, and the degradation rate for benzenes within two days is higher than 90%; and the immobilized benzene composite microbial inoculum can be widely used for removing benzenes in garbage leachate, and can also be used for treating benzene-polluted water bodies.

The invention discloses an efficient PAH (polycyclic aromatic hydrocarbon) degrading bacteria WY6 (Mycobacterium sp.WY6) with the preservation number being CCTCC (China Center for Type Culture Collection) NO:M 2017373. The invention further provides an application of the efficient PAH degrading bacteria WY6. The efficient PAH degrading bacteria WY6 is used for controlling high-concentration PAH pollution of soil; the rate of degradation of phenanthrene with concentration being 100 mg L<-1> reaches 99.75%, and the rate of degradation of pyrene with concentration being 50 mg L<-1> reaches 98.73%. The invention further provides a method for screening the efficient PAH degrading bacteria.

The invention discloses bacillus cereus JYZ-SD1 which is separated from the roots of poplars and can degrade lecithin. The classification designation of the bacillus cereus JYZ-SD1 is bacillus cereus. The bacillus cereus JYZ-SD1 is preserved in the China Center for Type Culture Collection (CCTCC), the preservation number is M 209096, and the preservation date is 4 May, 2009. The invention also discloses an application of the bacillus cereus in promoting the growth of the poplars. The JYZ-SD1 strain has stronger degradation capability to the lecithin; the JYZ-SD1 microbial agent is inoculated into NL-895 poplar cuttage seedlings and America black poplar tree seedlings; and a result shows that the microbial agent can obviously promote the growth of poplar seedlings. Therefore, the invention provides a superior strain resource for developing poplar phosphorus bacterial fertilizer.

The invention relates to pseudomonas putida RXX-01. The class name of the pseudomonas putida RXX-01 of is Pseudomonas putida, the pseudomonas putida RXX-01 is preserved in China General Microbiological Culture Collection Center (CGMCC), the preservation address is 3#, Yard 1, West Beicheng Road, Chaoyang District, Beijing, the preservation date is November 1, 2016, and the preservation number is CGMCC No. 13224. The pseudomonas putida RXX-01 provided by the invention has the efficient degradation effect to DBP and DEHP combined pollution of soil and further has wide application prospects in the field of the repairing of phthalate-polluted soil.

The invention discloses a pseudomonas stutzeri DB-33 used for the quick denitrification of a culture water body, which has a collection number of CGMCC (China General Microbiological Culture Collection Center) No. 5993. The invention also discloses an open culture method for the fungicide, which comprises the following steps of: taking a 25L plastic drum as a culture device; filling in 20L of DM liquid culture medium; inoculating a liquid strain with the strain inoculation amount of 20%; at the temperature above 25DEG C, ventilating for 45w by an air pump; and fermenting for 24 hours until the effective viable count of the fermentation liquor reaches 16 hundred million mL<-1>. The pseudomonas stutzeri disclosed by the invention can be used for quickly degrading nitrate, nitrite and ammonia nitrogen in the water body so as to improve the water body environment, reduce harm to organisms in the water body by nitrogen-contained pollutants and greatly lower the production cost of a denitrification microorganism preparation, and the efficient, safe and practical biological denitrification technology is provided for vast farmers.

The invention relates to the technical field of plasma application, and discloses a device for reacting discharge plasmas positioned on the gas-liquid interface of a swirl gas column. The discharge is generated on the gas-liquid interface of the swirl gas column. The device comprises a swirler, an electrode, a high-voltage power supply, a gas-liquid mixing pump, an air compressor and a water tank, wherein the swirler can form a gas column; the electrode is matched with the gas column; and the gas-liquid mixing pump provides a liquid to be treated, which is mixed with a gas-phase medium, for the swirler. According to the device, the liquid to be treated, which is mixed with a gas-phase medium, enters the swirler after being increased to a certain flow velocity, the gas column is generated under the action of centrifugal force, the discharge electrode is switched on with the high-voltage power supply and then generates a high-intensity electric field in a short-distance hollow cylinder positioned between the gas-liquid interface and the outer surface of the electrode, and the gas-phase medium positioned in the high-intensity electric field is activated and generates the phenomenon of annular glow discharge, so that the plasma is generated, and the energy consumption can be reduced to 5-15 W. The device provided by the invention has a function equivalent to directly placing an ozone generation part into the liquid to be treated in an ozone oxidation process and has the advantages of large treatment amount, low energy consumption, simple structure and easiness for popularization.

The invention discloses a preparation method of a kaolin-based three-dimensional particle electrode, comprising the steps of (1) grinding, to be specific, grinding kaolin and Hydrilla to powder, and drying to constant weight; (2) mixing and forming, to be specific, dissolving ferrous sulfate septahydrate and copper sulfate pentahydrate in water to obtain mixed liquid, adding the kaolin powder and the Hydrilla powder to the mixed liquid, and performing isometric impregnation adsorption for 1-3 h so that uniform mixing is achieved and spheres 3-5 mm in particle size are produced; (3) drying, to be specific, drying the spheres; (4) calcining, to be specific, calcining the spheres to obtain the kaolin-based particle electrode. The kaolin-based particle electrode prepared through the method employs porous kaolin as a carrier and Hydrilla as a pore-forming agent, Fe and Cu metallic catalysts are supported to the kaolin-based particle electrode, the supported particle electrode can provide homogeneous Fe2+ and Cu2+ catalyst and nonhomogeneous Fenton catalyst for reaction, and dye wastewater can be degraded effectively and may be reused.

The invention belongs to the technical field of catalysts, particularly relates to an ozonation catalyst for wastewater treatment and aims to provide a loaded ozonation catalyst having the advantages of high pollutant removal rate, high catalytic activity, zero secondary pollution and little active ingredient loss and a preparation method and application thereof. The loaded ozonation catalyst uses gamma-alumina as a carrier and SnO2 and TiO2 as active components. The preparation method includes five processes: carrier particle pretreatment, gel solution preparation, impregnation, calcining and repeated treatment. The loaded ozonation catalyst can be used for ozonation treatment of antibiotic wastewater like chloromycetin wastewater, penicillin wastewater, erythromycin wastewater, streptomycin wastewater, vancomycin wastewater and pipemidic acid wastewater and has the advantages of high removal efficiency, high ozone utilization rate and needlessness of external adding of agents.

The invention discloses a preparation method for functional wood capable of degrading organic pollutants through photocatalysis. The preparation method comprises the following steps that wood is subjected to pretreatment, internal pores of the wood are gotten through, and hydroxyl on the surface of the wood is exposed; bismuth nitrate is taken to be dissolved in an acid solution, then, coupling agents are added, stirring is conducted, and a mixed solution is obtained; soluble iodized salts and soluble chlorate are taken to be dissolved in water, stirring is conducted for dissolving, and a halide salt solution is obtained; the pretreated wood is soaked into the mixture solution, subjected to pressurized soaking, taken out and dewatered, and the wood adsorbed with bismuth ions is obtained; the wood adsorbed with the bismuth ions is soaked into the halide salt solution, subjected to pressurized soaking, taken out and subjected to vacuum drying, and then the functional wood capable of degrading the organic pollutants through photocatalysis can be obtained. The functional wood prepared through the method is high in light use ratio, can effectively degrade the organic pollutants under visible light radiation and is good in degradation effect.

The invention relates to a preparation method of CQDs/TNS and SiQDs/TNS composite photocatalyst with visible light activity. The steps of the present invention are (1) using gelatin as a carbon source, 3-amino, propyl-trimethoxysilane as a silicon source, and hydrothermal treatment to obtain carbon quantum dots (CQDs) and silicon quantum dots (SiQDs) solutions respectively; ( 2) The initially obtained CQDs solution was modified by polyethylene glycol reflux to obtain uniformly dispersed carbon quantum dots; (3) Tetrabutyl titanate was used as the titanium source, and TNS was obtained by hydrothermal treatment in HF aqueous solution; (4) CQDs and SiQDs were mixed with TNS in different mass ratios in ethanol solution, adjusted to pH 3-4 with HCl, refluxed for 5 h, then washed and dried to obtain CQDs/TNS and SiQDs/TNS composite photocatalysts. The composite visible light catalyst obtained by the invention has strong visible light catalytic degradation activity for rhodamine B, and can be recycled for many times. The preparation process of the catalyst is simple and easy to control, the raw materials are easy to obtain, and the production cost is low.

The invention discloses a tetracycline efficient degradation bacterium and application thereof. One strain of the tetracycline efficient degradation bacterium is obtained through screening from organic fertilizers fermented by using chicken manure and the like as raw materials; through physiological-biochemical characteristics and 16SrDNA sequence analysis, the strain is identified to be Klebsiella Trevisan, and is named as TR5. The tetracycline degradation efficiency of the used strain is forecasted to reach 90 percent or higher through response surface experiment design at a laboratory level. The value is improved by about 20 percent through being compared with the data reported in most documents. A microbial immobilization technology is also used for improving the anti-impact load capability of the tetracycline efficient degradation bacterium in a water body and the organism quantity; a green and environment-pollution-free biological path is provided for the relevant aquaculture water body treatment and pharmaceutical factory tetracycline antibiotic sewage control.

The invention belongs to the technical field of photocatalysts, relates to a photocatalyst capable of degrading polyacrylamide, and particularly relates to a preparation method of the photocatalyst capable of degrading polyacrylamide under response of visible light and application of the photocatalyst. The preparation method of the photocatalyst comprises the following steps: firstly, preparing graphene oxide by an improved Hummers method; then preparing graphene by a hydrothermal method, and then preparing the photocatalyst responding to visible light by taking grapheme, titanium dioxide, a bromine source, silver salt and ammonium hydroxide as raw materials by deposition-deposition and photo reduction method as well as high-temperature calcination. According to the invention, polyacrylamide macromolecules in the water solution are degraded by the catalyst. The experimental result shows that the catalyst has a favorable degrading effect for polyacrylamide which is taken as a degrading object; the operation is simple; and the photocatalyst has great development and application prospects in degrading macromolecule polyacrylamide contaminants under visible light condition.

The invention relates to rhodococcus YC915 and application of an adsorption bacterial agent of the rhodococcus YC915 for degrading phthalate ester in soils. A category name of the rhodococcus YC915 isRhodococcus sp., and the rhodococcus YC915 is preserved in China Center for Type Culture Collection (CCTCC) with address being Luojia Mountain, Bayi Road, Wuchang District, Wuhan City, Hubei Province, a preservation date being February 22, 2018 and a preservation number being CCTCC M 2018094. The rhodococcus YC915 provided by the invention has an efficient degradation effect on DBP and DEHP composite pollution of the soils and has a wide application prospect in the field of phthalate ester polluted soil repair.

The present invention discloses an environmentally friendly food plastic film, which comprises, by weight, 30-50 parts of linear low-density polyethylene, 20-30 parts of a resin, 5-10 parts of titanium stearate, 1-5 parts of chitosan, 0.4-0.8 part of a preservative, and 0.1-0.4 part of a surfactant. According to the present invention, the linear low density polyethylene and the resin are adopted as the main raw materials, and a proper amount of the additive is added, such that the strong toughness of the plastic packaging bag is ensured, the good degradation effect is provided, and the influence on the surrounding environment is reduced.

The invention discloses a strain for degrading phenanthrene and application thereof in soil remediation, and belongs to the field of environmental microbiology. The strain is named pseudomonas sp. Lphe-2, belonging to pseudomonas, was deposited in the Guangdong Provincial Center for Microorganisms and Species Collection under the accession number GDMCC No: 60603. The strain is a gram-negative bacterium, the color is milky white, the shape is round, the edge is neat, the texture is viscous and the surface is smooth. Under the scanning electron microscope, it can be seen that the strain Lphe-2 is mostly in short rod shape, with a small number of spherical and long rods. It can be seen that there is a long rod shape with a splitting tendency, which is determined to be a bacillus. The strain has the function of degrading PAHs efficiently and can be used for the repair of polycyclic aromatic hydrocarbons. The strain Lphe-2 has a broad spectrum of PAHs degradation, and has a good degradationeffect on the actual PAHs contaminated soil.

The invention provides a device for treating spraying waste gas jointly through hot corona discharge and high-temperature pyrolysis .The device comprises a reaction barrel, a tangent cyclone inlet, a tangent cyclone outlet, a discharge electrode tube, a spiral heating tube electrode, a high-voltage direct current power source and a heating tube temperature controller .The tangent cyclone inlet is tangent to the barrel wall and is formed in one end of the reaction barrel .The tangent cyclone outlet is tangent to the barrel wall and is formed in the other end of the reaction barrel .The discharge electrode tube is installed on a center shaft of the reaction barrel .The spiral heating tube electrode is installed in the reaction barrel, axially and spirally stretches along the inner barrel wall of the reaction barrel, and is used for high-temperature pyrolysis of the spraying waste gas .The invention further provides a method for treating the spraying waste gas jointly through hot corona discharge and high-temperature pyrolysis .The device and method have the advantages that the granulate matter removal efficiency is high, the VOCs degradation effect is good, and the efficiency of high-temperature thermal degradation of VOCs is high, the purposes of high efficiency, energy saving and avoidance of secondary pollutants are achieved accordingly, the investment and treatment cost is low, operation is easy and convenient, and very wide application prospects are achieved .

The invention discloses variovorax paradoxus DEA-3 which is classified and named as variovorax paradoxus DEA-3, the preservation date is February 9, 2015, the full name of the preservation institution is China General Microbiological Culture Collection Center (CGMCC), and the preservation accession number is CGMCCNO.10543. The variovorax paradoxus DEA-3 can grow by use of N, N-dimethyl ethanolamine as the sole carbon source and nitrogen source, the 200mg /L N, N-dimethyl ethanolamine degradation rate of the variovorax paradoxus DEA-3 can reach 94.5%; the 200mg /L N, N-dimethyl ethanolamine degradation rate of an immobilization small ball prepared by the variovorax paradoxus DEA-3 can reach more than 90%, the immobilization small ball prepared by the variovorax paradoxus has a very good degradation effect, and in addition, the immobilization small ball prepared by the variovorax paradoxus is low in production cost, convenient to use, and suitable for promotion and use in the treatment of wastewater containing the N, N-dimethyl ethanolamine.

The invention discloses a titanium-based composite material for visible light catalytic degradation of rhodamine B and a preparation method thereof, belongs to the technical field of environmental sewage treatment, and relates to the preparation of a new material for photocatalysis. Specifically, TiO2 nano powder is prepared by a sol-gel method, and a TiO2/Ag+/IL nano composite material is prepared by a liquid phase co-precipitation method with Ag+ as a dopant and ionic liquid (IL) as a modifier. The photocatalysis degradation property of the composite nano material on rhodamine B dye is investigated under visible light, and the degradation rate can reach 98.87% after condition optimization. The method has the advantages of low cost, simple and convenient preparation, excellent rhodamine Bdegradation effect, effective improvement of the environmental sewage treatment efficiency, and realization of organic unification of social, economic and environmental benefits.

The invention relates to stenotrophomonas acidaminiphila and application thereof. The preservation number of the stenotrophomonas acidaminiphila SP-3 is CGMCC No.13711, a nucleotide sequences is shown as SEQ ID NO.1. The stenotrophomonas acidaminiphila is used for decoloration and degradation of pigment red 23 wastewater. The azo dye wastewater degradation effect of the stenotrophomonas acidaminiphila is good, an application method is simple, the cost is low, and the stenotrophomonas acidaminiphila has a very good application prospect.

The invention discloses a fungus capable of degrading phthalic acid ester and pesticide simultaneously and application thereof. The name of the fungus is Geotrichum sp.DY4, and the fungus is preserved in China Center for Type Culture Collection in Wuhan University in Wuhan, China on May 11, 2014 with the preservation number of CCTCC NO:M2014194. The fungus disclosed by the invention can degrade phthalic acid ester and pesticide simultaneously, can be used for degrading pollution caused by multiple PAEs and pesticide mixtures and also can be used for soil biological remediation, and a new genetic resource is provided for study of a degradation mechanism on PAEs and pesticide in soil.

The invention belongs to the technical field of pesticide residue and particularly relates to a method for removing an organophosphorus pesticide from surfaces of vegetables. The method for removing the organophosphorus pesticide from the surfaces of the vegetables comprises the following steps: (1) firstly, soaking the vegetables in clean water for 30 to 45 minutes, and taking out the soaked vegetables for later use; (2) irradiating the vegetables for 10 to 20 minutes by an ultraviolet ray irradiation unit, so as to obtain ultraviolet ray irradiated vegetables; (3) placing the ultraviolet ray irradiated vegetables obtained in the step (2) in clean water, adding ozone into the water by ozone mixing equipment, and keeping the ozone concentration to 10mg/L to 20mg/L; (4) carrying out dynamic bubble washing on the vegetables obtained in the step (3) for 5 to 10 minutes by salt water. According to the method, the operation is simple, and pesticides in the vegetables can be effectively degraded.

The invention discloses a Simplicillium pekinense strain LYZ7 and application thereof, and belongs to the field of microorganisms. The preservation number of the strain LYZ7 is CGMCC No.16487. The invention accidentally finds that the strain belongs to a novel strain and is named as the Simplicillium pekinense. Based on the strain, the invention also provides an inoculant which can degrade tetracycline, a tetracycline biodegradable agent and a tetracycline biodegradation method. The strain LYZ7 disclosed by the invention has an obvious degradation effect on the tetracycline; the degradation rate reach as high as 89.21 percent after the tetracycline is treated for 14 days.

The invention discloses a photochemical degradation treatment method of a TKX-50 explosive, and belongs to the technical field of energetic materials. The method specifically comprises the following steps: adding water into TKX-50 to prepare a TKX-50 solution, and then putting the prepared TKX-50 solution under an ultraviolet light source for illumination. Researches show that ultraviolet irradiation under a certain condition has a very good degradation effect on TKX-50, and a feasible technical route is provided for green destruction of TKX-50 explosives.

The invention discloses a method for biologically degrading polycyclic aromatic hydrocarbon phenanthrene by using aspergillus niger fungi. The method comprises the following steps: inoculating aspergillus niger fungi friendly provided by Chinese Academy of Sciences to a cant of a solid growth culture medium, culturing the aspergillus niger fungi in a culture box for 5-7 days at 28-30 DEG C to prepare cant strains; inoculating the cant strains into a liquid growth culture medium under aseptic condition, putting the liquid growth culture medium in a shaking bed for culturing for 24 hours under the condition with the temperature of 30 DEG C and the rate of 150r/min to prepare an aspergillus niger fungi degradation agent; adjusting different pH values in a liquid nutrition limitation medium, adding phenanthrenes with different concentrations, dissolving with assistance of trace of acetone, then sterilizing for 20 minutes at 112-125 DEG C, inoculating the aspergillus niger fungi degradation agent into the liquid nutrition limitation medium under the aseptic condition, culturing in the shaking bed under the condition with the temperature of 30 DEG C and the rate of 150r/min, and sampling and detecting after different times. Through the method, the degradation speed and the degradation efficiency are improved; an optimal degradation effect can be achieved under the conditions that the concentration of phenanthrene is 100 mug/mL, the pH is 7 and the culture time lasts for 6 days; the degradation rate reaches 85%; the method is great innovation for treating phenanthrene-containing wastewater and has great economic and social benefits.

The invention relates to a method for preparing semiconductor photocatalyst ZnGa2O4 by a solvothermal method and the semiconductor photocatalyst ZnGa2O4. The method for preparing the semiconductor photocatalyst ZnGa2O4 by the solvothermal method includes: preparing homogeneous gallium oxide, dissolving the gallium oxide, hexadecyl trimethyl ammonium bromide, zinc carbonate and sodium hydroxide into a mixed solution of water and polyethylene glycol 200 according to a specific stoichiometric ratio prior to solvothermal treatment, and subjecting a product to vacuum drying so as to obtain the semiconductor photocatalyst ZnGa2O4. The semiconductor photocatalyst ZnGa2O4 demonstrates excellent photocatalytic performance for organic dye. The method for preparing the semiconductor photocatalyst ZnGa2O4 by the solvothermal method is available to raw materials, simple in preparation technology and high in repeatability and requires no later-period thermal treatment.

The invention discloses a method of liquid-phase catalysis processing bromate in water, adding aluminum oxide catalyst containing precious metal into water containing bromate pollutant and regulating pH value of the water to 2-8, then infusing hydrogen gas for degradation reaction. The invention provided method of liquid-phase degradation of bromate with catalyst hydrogen shows prominent degradation effect, high bromate degradation efficiency, fast speed, simple operation technical feasibility, and the materials are easy to get without secondary pollution. The invention for degrading bromate in water possesses favorable economic and environmental benefits.

The invention relates to bacillus firums R419 capable of efficiently degrading donkey hair. The strain can grow by taking untreated dry donkey hair as a unique carbon source and nitrogen source, efficiently degrades the donkey hair, generates compound amino acid, polypeptide and soluble protein, can specifically degrade the donkey hair, and has the donkey hair degradation rate of 91.8 percent and the remarkable degradation effect.