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The present invention provides a kind of bacteria preparation for efficiently degrading hexachlorocyclohexane (HCH) pesticide residue. The strain BHC-A is Sphingomonas sp., can growth with HCH as the unique carbon source and energy source, and degrade alpha-HCH, beta-HCH, gamma-HCH and delta-HCH in short time at high efficiency. The present invention solves the difficult problem of aerobically biodegrading beta-HCH, and can mineralize 5 mg / L beta-HCH completely within 12 hr. Applying the degrading bacteria product directly can lower the residual HCH amount in soil by over 95 % to lower the HCH residue in agricultural product.

The invention provides a decomposing microbial inoculum that is used for eliminating nicosulfuron pesticide residue and belongs to the advanced technical field of biology. A Gram-negative bacteria strain YM3 identified as Pseudomonas sp. is used. The strain has following main biological characteristics: G<->, bacilliform thallus with size of (0.5-1.0) multiplied by (1.5-5.0) num, and positive in reduction reaction of catalase and nitrate; negative in oxidase and V.P. reaction and methyl red and indole reaction; non-hydrolysis of starch and isinglass, and non-utilization of citrate. A culture fluid that is obtained after fermentation of the YM3 strain is the microbial inoculum. By applying the product of the decomposing microbial inoculum, the residue amount of the nicosulfuron pesticide in soil can be lowered by over 72 percent, thus solving the problem of overproof nicosulfuron pesticide residue in agricultural industry.

The invention relates to a microbial agent for treating acetone-containing medical and chemical industrial waste water and an application thereof, which belong to the field of environmental-friendly microbes. Pseudomonas sp. XHC is preserved in China General Microbiological Center Culture Collection Center on August 1, 2011, and the strain preservation number is CGMCC No.5106. The pseudomonas XHC(CGMCC No.5106) can degrade more than 70 percent of acetone in medical and chemical industrial waste water and is suitable for being used in factories producing the acetone-containing medical and chemical industrial waste water.

The invention provides a degrading residual microbial inoculum of buprofezin pesticide, belonging to the field of biological high technology. The used bacterial strain is gram staining negative bacteria BF3, and is identified as Paracoccus (Paracoccus sp.). The main biological characteristic is gram-negative and cell is clubbed. Bacterial colony is milky yellowish, round, swollen and opaque, withneat margin and smooth surface. The bacterial strain is facultative anaerobic and chemoheterotropic. The culture solution obtained by fermenting BF3 strain is the microbial inoculum. The application of degrading bacteria product can ensure that buprofezin pesticide residue quantity in soil is reduced by more than 90%, and can solve the overproof problem of buprofezin pesticide residue in agricultural production.

The invention provides a degradation bacillus which can dispel the metoxuron pesticide residue and its prodegradant. The used strain is Gram's stain reaction hysteroptosis s113 in the field of Methylopilus sp. The main biology characteristic is G-; the thaliana is the rod type whose size is 2.2*0.45mu m; the scavenger enzyme, oxidative enzyme and the nitrate reduction reaction are positive; the V.P. reaction and the indole reaction are negative; it can not be hydrolysed starched; the Genbank landing number of the strain 16S rDNA is DQ095877.

The invention discloses a degrading bacterial strain capable of simultaneously degrading two isomers of the chiral herbicide 2,4-dipropionic acid [(R,S)-DCPP] and the bacterial agent produced therefrom. Strain DCP‑6 was identified as Sphingopyxis sp., and was deposited in the China Center for Type Culture Collection on December 23, 2019, with the strain preservation number CCTCC M 20191084. The degrading bacterial strain DCP-6 described in the present invention can broadly degrade phenoxycarboxylic acid chiral herbicides (R, S)-DCPP and 2-methyl-4-chlorophenoxypropionic acid (R, S)-MCPP Two isomers and phenoxycarboxylic acid achiral herbicides 2,4-dichlorophenoxyacetic acid (2,4-D), MCPA and 2,4-DB, etc., degrading bacterial agent products can make soil (R,S)-DCPP and other residues are reduced by more than 89%, which can effectively solve the problems of phenoxycarboxylic acid herbicides in soil and water environment pollution and crop phytotoxicity in the agricultural production process, and protect the ecological environment.