48results about How to "Has the ability to degrade" patented technology

The invention discloses a polymer coated released fertilizer and a preparation method thereof and a special coating material thereof. The coating material comprises isocyanate, polyol, degradable functional monomer, an aid agent of coating and a chain extender, wherein, the mol ratio between the isocyano group in the isocyanate and the hydroxyl group in the polyol is 1:2 to 2:1 and the mass of the degradable functional monomer is 1 percent to 20 percent of the mass of the coating material. The coated released fertilizer provided by the invention consists of a core and a karyotheca, wherein, the core is granule fertilizer and the karyotheca is prepared from the coating material, and the mass of the karyotheca is 2 percent to 10 percent of the mass of the core. The coating material has good film forming and water resisting performance and can be degraded in nature. The hardness and the elasticity of the material can be adjusted by changing the mixure ratio of the coating material so as to prepare released fertilizers with different releasing periods.

The invention discloses an integration air purification method with wide-adaptability and high efficiency, which comprises the steps of adsorption regeneration, low temperature plasma catalyst coupling purification and tail gas absorption. First, concentration and enrichment of the harmful gas with the low concentration of 1-100ppm and air volume of 50-1000m<3> / h are carried out by adopting regenertation adsorption plant, so as to obtain clean air capable of being directly discharged; then electric heating in-situ regeneration is carried out to an absorption bed layer, so as to release gaseous pollutant with the concentration of 10-2000ppm and air volume of 2.5-50m<3>h into a low temperature plasma reactor; next, the harmful air is decomposed and mineralized during passing an catalyst bed layer; thereby, harmful microorganism and bacteria is sterilized and the side product in the tail gas is absorbed; as a result, clean air is obtained.

The invention discloses a novel klebsiella pneumoniae strain as well as an isolation method and application thereof. The novel strain is isolated and screened from activated sludge in an aeration tankof a papermaking sewage treatment plant and is collected in China General Microbiological Culture Collection Center, the collection name is ZS-01, the collection number is 16041, and the collection date is June 30, 2018. The strain has the characteristics and performance as follows: (1), the characteristics are: colonies formed on a phenol MedA solid culture medium are relatively short and thickbacilli, have the sizes of (0.5-0.8)*(1-2)[mu]m, are arranged separately or in pairs, and are pale yellow, uniform in texture and opaque; relatively large gray white sticky colonies are formed on an MPYE solid culture medium, are flagella-free, have capsules, belong to enterobacteriaceae and are Gram-negative short and thick bacilli; (2), the performance is: the strain has certain phenol degradingcapability and has relatively high tolerance to phenol. The strain has the advantages as follows: the strain can degrade the phenol with relatively high concentration, and provides a new bacterial source for effectively treating phenol-containing wastewater with relatively high concentration.

The invention discloses a polyvinyl alcohol-pectin embolism microsphere, a drug-loaded embolism microsphere and a preparation method. A preparation method of the embolism microsphere comprises the following steps: blending a polyvinyl alcohol solution and a pectin solution to obtain a water phase; dissolving an emulsifier in a continuous phase, and performing uniform mixing to obtain an oil phase;adding the water phase into the oil phase, and performing uniform stirring to obtain polyvinyl alcohol-pectin emulsion; dissolving a cross-linking agent namely glutaraldehyde and a catalyst namely hydrochloric acid in diethyl ether to obtain a mixture, dropwise adding the mixture into the polyvinyl alcohol-pectin emulsion, and performing a cross-linking reaction to obtain a polyvinyl alcohol-pectin suspension; and centrifuging and washing the polyvinyl alcohol-pectin suspension, and then performing freeze-drying to obtain the polyvinyl alcohol-pectin embolism microsphere. The preparation method comprises the steps of dissolving anti-tumor drug in water to obtain an anti-tumor drug solution, then placing the polyvinyl alcohol-pectin microsphere into the anti-tumor drug solution, performingstirring, and enabling the polyvinyl alcohol-pectin embolism microsphere to adsorb the anti-tumor drug to obtain the polyvinyl alcohol-pectin drug-loaded embolism microsphere. The prepared embolism microsphere has certain degradation capacity and higher drug loading capacity.

The invention provides a microbial soil improving agent for restoring petroleum polluted soil. A product is prepared from a degradation bacterial agent, an additive and a biosurfactant, wherein the degradation bacterial agent is prepared from pseudomonas, bacillus, Acinetobacter, microzyme, phosphate-solubilizing bacteria, azotobacterial, nitrobacteria and photosynthetic bacteria; the additive isprepared from the following ingredients in parts by weight: 20 to 35 parts of wormcast, 80 to 120 parts of bentonite, 1 to 10 parts of chitosan, 10 to 20 parts of kaolin, 5 to 9 parts of borax, 25 to35 parts of crop stalks, 10 to 15 parts of rice hull powder, 10 to 15 parts of dry seaweed, 1 to 5 parts of organic acid, 5 to 10 parts of vermiculite, 10 to 20 parts of shell powder and 20 to 25 parts of compound amino acid. The microbial soil improving agent for restoring petroleum polluted soil has the advantages that the soil fertility is improved; the petroleum in the soil can be degraded; the goal of governing the petroleum polluted soil is achieved.

The invention provides a pseudomonas and an application of the pseudomonas. The preservation serial number of the pseudomonas is CGMCC No.9379, and the pseudomonas has the advantages of being high in growth speed, stability and flocculant yield, efficient and the like and can be used for producing a microbial flocculant in a fermenting mode, and especially be used for producing the microbial flocculant used for flocculating sprayed paint waste water in a fermenting mode.

The invention discloses clostridium kogasensis EO-08 and an application thereof in degrading ethylene oxide, and relates to the technical field of biodegradation in an ethylene oxide treatment technology. The preservation number of the clostridium kogasensis EO-08 is CGMCC No. 18438. The invention also dicloses the application of the clostridium kogasensis EO-08. According to the invention, the problem of sewage disposal emission in industrial ethylene oxide post-treatment measures is solved; microorganisms for degrading the ethylene oxide are effectively screened out; and the degrading effectof degrading bacteria is improved. The EO-08 can degrade the ethylene oxide with a concentration of 400 mg / L under a condition of a carbon source with a concentration of 30%, and the degradation rateof the ethylene oxide can reach 83.61%; and under the condition of the carbon source with the concentration of 30%, the ethylene oxide with a high concentration of 800 mg / L can be degraded, and the degradation rate of the ethylene oxide can reach 91.70%.

The invention relates to the microbiological field, and discloses novel organic halide respiration geobacter and application of the novel organic halide respiration geobacter in bioremediation of chloralkane pollutants. A geobacter IAE bacterial strain is collected in the China General Microbiological Culture Collection Center (culture collection number CGMCC) on July 7, 2020, wherein the addressis No. 3, 1 Courtyard No., Beichenxi Road, Chaoyang District, Beijing City, Institute of Microbiology, Chinese Academy of Sciences, the zip code is 100101, and the collection number is 1.5298.

The invention relates to a method for preparing flax fiber by ultrasonic combination of a mucor circinelloides DK1 strain and hydrogen peroxide. The method comprises the following steps: (1) culturing the strain; (2) preparing a crude enzyme solution; and (3) mixing a flax raw material after sterilization and a mixed solution of the crude enzyme solution and hydrogen peroxide according to the mass-to-volume ratio of 1: (10-30), regulating a pH value, then putting into a shaking bed for treatment, finally adding sodium hydroxide, increasing the temperature, degumming, removing a degumming solution, washing, stopping washing when the pH value is natural, and completing degumming. The strain adopted by the invention is short in growth period, the strain is less liable to pollution, the treatment cost is low, and the degumming condition is mild; and the degumming method is simple in process flow, the time is shortened, the energy consumption is reduced, the pollution emission is reduced, and the method is conductive to environmental protection.

The invention provides an environment-friendly waterborne acrylic coating and a preparation method thereof. The preparation method comprises the following steps of: mixing raw materials to obtain a mixture I, and then mixing the mixture I with waterborne acrylic resin and an additive in sequence to finally obtain the environment-friendly waterborne acrylic coating. The environment-friendly waterborne acrylic coating prepared by the invention has excellent comprehensive performance and relatively high efficiency of photocatalytic degradation of formaldehyde, so that the environment-friendly waterborne acrylic coating prepared by the invention can be applied to the field of environmental protection.

The invention relates to a strain for producing high-efficiency collagenase and an application thereof. The strain is preserved in China Center for Type Culture Collection on October 9th, 2020, the preservation number is CCTCC M2020574, and the address is Wuhan University, Wuhan, China. The strain has collagen degradation capacity, and the produced collagenase can be applied to collagen degradation and collagen oligopeptide production. In particular, the strain has high degradation capability on collagen raw materials such as cattle bones, fish skin and the like and can be used for further enzymolysis treatment on meat processing and fishery processing byproducts such as the cattle bones and the fish skin, cod skin is adopted as a raw material, a peptide fragment with the molecular weightsmaller than 3000Da of the prepared collagen oligopeptide is more than 95%, the molecular weight is small, the uniformity is high, and the collagen is easy to absorb and utilize by a human body, effectively improves the added value of the collagen byproduct, and has good economic benefit.

The invention discloses vibrio alginolyticus capable of degrading various sulfanilamide antibiotics and application of the vibrio alginolyticus. The vibrio alginolyticus is screened from estuarine water in an entrance of the guangdang river in Yantai and preserved in the general microbiology center of the China Committee for Culture Collection of Microorganims on June 26, 2019, and the preservation number is: CGMCC No. 18031. The vibrio alginolyticus has the ability of degradation of the sulfanilamide antibiotics, and can degrade the various sulfanilamide antibiotics including sulfadiazine, sulfisoxazole, sulfamethoxazole, sulfadimidine, sulfamonomethoxine, sulfacetamide, sulfamerazine, sulfathiazole and pyridazol. The vibrio alginolyticus capable of degrading the various sulfanilamide antibiotics and application of the vibrio alginolyticus have the beneficial effect that the screened vibrio alginolyticus (with the preservation number being CGMCC No.18031) has great application prospects in the aspect of treatment of polluted water (including fresh water and sea water) which contains the high-concentration sulfanilamide antibiotics.

The invention provides a pseudomonas and application thereof. The preservation number of the Pseudomonas provided by the present invention is CGMCC No.9379, which has the characteristics of fast growth, strong stability, high flocculant yield, and high efficiency, and can be used for fermentation and production of microbial flocculants, especially for fermentation production. Microbial flocculant for flocculating paint mist wastewater.

The invention relates to an engineering bacterium for degrading polycyclic aromatic hydrocarbon, an engineering reforming method and an application thereof. The engineering reforming method comprisesthe following steps: cloning from pseudomonas aeruginosa SA1, thereby acquiring a degrading gene, namely, catA2 gene, for encoding ring splitting decomposition of dioxygenase, wherein the nucleotide sequence is shown as SEQ ID No.1 and the nucleotide sequence of specific oprL promoter is shown as SEQ ID No.2; selecting a broad host range plasmid pBBR1MCS-5 as a carrier; respectively cloning catA2gene and oprL promoter into the pBBR1MCS-5 carrier, shifting to a recipient cell for clonal expansion and screening positive clone, thereby acquiring a target recombinant vector pBBR1MCS-5-oprL-catA2;utilizing pseudomonas aeruginosa SA1 as a host to convert the recombinant vector pBBR1MCS-5-oprL-catA2 into a pseudomonas aeruginosa strain through an electric shock method, thereby constructing engineering pseudomonas aeruginosa. The engineering bacterium has the capacity of degrading polycyclic aromatic hydrocarbon.

The invention discloses nanometer magnesium oxide with dark-room sterilization and sewage degradation performance. Exposed oxygen vacancy sites are arranged on the surfaces of crystal planes {111} of the nanometer magnesium oxide. The particle sizes of particles of the nanometer magnesium oxide used as an antibacterial agent are 10-50 nm. A method for preparing the nanometer magnesium oxide includes (1), mixing magnesium nitrate hexahydrate, diethylamine hydrochloride and urea with one another to obtain mixtures; (2), heating, melting, combusting, cooling and grinding the mixtures obtained at the step (1) to obtain a solid product which is the nanometer magnesium oxide. A molar ratio of the magnesium nitrate hexahydrate to the diethylamine hydrochloride to the urea is 1.0:(0.5-1.5):(0.2-2.0). The nanometer magnesium oxide and the method have the advantages that the nanometer magnesium oxide prepared by the aid of the method is capable of adsorbing active molecular oxygen and directly generating active oxygen species and is good in oxidation sterilization and degradation activity in dark-room environments; raw materials for the nanometer magnesium oxide are easily available, the earth crusts contain abundant magnesium elements, and the magnesium elements are low in cost; the method for synthesizing the nanometer magnesium oxide includes simple processes, is short in time consumption and has an excellent industrial application prospect.

The invention relates to a strain capable of degrading collagen and application of the strain. The strain is preserved in China Centre for Type Culture Collection on May 8, 2021; the preservation number is CCTCC M 2021506; and the address is Wuhan University, Wuhan, China. The strain has collagen degradation capability and can be used for preparing collagenase; and the collagenase can be applied to enzymolysis of collagen and production of collagen oligopeptide. Particularly, the strain has very strong degradation capability on collagen raw materials such as ox bones, and can be used for further enzymolysis treatment on by-products of meat processing and fishery processing such as ox bones and fish skins. According to the invention, the ox bone is adopted as the raw material; the peptide fragment with the molecular weight smaller than 5000Da of the prepared collagen oligopeptide reaches 77% or above; the molecular weight is small; the uniformity is high; the collagen oligopeptide is easily absorbed and utilized by a human body; the additional value of collagen by-products is effectively improved; and the collagen oligopeptide has good economic benefits.

The invention belongs to the technical field of halohydrocarbon contaminated soil remediation, and particularly relates to a polyhalogenated aromatic hydrocarbon degrading bacterium and application thereof in contaminated soil remediation. The invention discloses a polyhalogenated aromatic hydrocarbon degrading bacterium acinetobacter sp. JWDH2-5 which is collected in the China Center for Type Culture Collection on April 9, 2021, and the collection number of the polyhalogenated aromatic hydrocarbon degrading bacterium acinetobacter sp. JWDH2-5 is CCTCC NO: M 2021319. The polyhalogenated aromatic hydrocarbon degrading bacterium acinetobacter sp. JWDH2-5 provided by the invention can be used for carrying out anaerobic and aerobic biological metabolism degradation on the polyhalogenated aromatic hydrocarbon, and has a good application potential by aiming at the soil polluted by the polyhalogenated aromatic hydrocarbon in an electric enhanced microbial remediation system.

The invention provides an acinetobacter FL-2 and an application thereof. The collection number of the acinetobacter provided by the invention is CGMCC No.9380 (China General Microbiological Culture Collection Center No.9380). The acinetobacter has the characteristics of high growth speed, high stability, high flocculant yield, high efficiency and the like, and can be used for fermentation production of a microbial flocculant, especially fermentation production of a microbial flocculant used for flocculating paint mist wastewater.

The invention discloses Enterococcus azikeevi EO-07 and application thereof in ethylene oxide degradation, and relates to the technical field of biodegradation in ethylene oxide treatment technologies. The preservation number of the Enterococcus azikeevi EO-07 is CGMCC No. 18437. The invention further discloses application of the Enterococcus azikeevi EO-07. By the Enterococcus azikeevi EO-07 andthe application thereof in ethylene oxide degradation, the sewage treatment and discharge problems in industrial ethylene oxide aftertreatment measures are solved, microorganisms for ethylene oxide degradation are screened out effectively, and the degradation effect of degrading bacteria is improved. The EO-07 can degrade ethylene oxide with the concentration of 400 mg / L under the condition of nocarbon source, and the ethylene oxide degradation rate can reach 65.42%; and the ethylene oxide with high concentration of 800 mg / L can be degraded under the condition of no carbon source, and the ethylene oxide degradation rate can reach 50.22%.

The invention relates to a method for self cultivation of salt-tolerant active sludge by using sebacic acid wastewater. The method comprises the following steps: 1, diluting a sodium sulfate solution by using aged sebacic acid wastewater to the COD of below 500mg / L and the phenol content of below 50mg / L, adding nitrogen and phosphorus nutrition, carrying out aeration or oscillation cultivation under a pH value of 3.0-9.55 at a temperature of 10-40DEG C, and controlling the dissolved oxygen (DO) of below 4.0mg / L; 2, adding the sebacic acid wastewater when the COD or the volatile phenol degradation rate is 80% or more, and continuously cultivating under same environment conditions until active sludge floc appears; and 3, maintaining the F / M value in a range of 0.05-0.8, and cultivating until the MLSS is greater than 1000mg / L. The active sludge cultivated through the method can be used to directly carry out biochemical treatment on the sebacic acid wastewater without diluting or desalinating the wastewater.

The invention discloses rhodotorula mucilaginosa for degrading penicillin as well as application thereof, and belongs to the technical field of microorganisms. The rhodotorula mucilaginosa was preserved in China Center for Type Culture Collection (CCTCC) on April 16, 2018, the preservation number is CCTCC M2018202, and the preservation address is Wuhan University, Wuhan, China. Compared with the existing bacterial strain with penicillin degrading capability, the rhodotorula mucilaginosa has the following advantages: the penicillin tolerance concentration (20 g / L) is 50 times that of the knownother bacterial strains in China; the penicillin concentration reducing value within the same time is far higher than the value which other bacterial strains can reach to; the rhodotorula mucilaginosais expected to be applied to treatment on bacterial residues in the actual production; and the capability of degrading the remained penicillin in the bacterial residues is extremely high.