Complex microbial agent capable of efficiently degrading polycyclic aromatic hydrocarbons and application of complex microbial agent

A polycyclic aromatic hydrocarbon and compound bacterial agent technology, applied in the field of environmental microorganisms, can solve the problems of slow growth, low growth and slow degradation rate of mycobacteria, achieve strong application prospects and promotion value, improve degradation effect, and fermentation time. short effect
CN109370931AActive Publication Date: 2019-02-22北京市科学技术研究院资源环境研究所
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京市科学技术研究院资源环境研究所
Publication Date
2019-02-22

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Abstract

The invention provides a complex microbial agent capable of efficiently degrading polycyclic aromatic hydrocarbons. The active ingredients include Mycobacterium sp. having a collection number of CGMCCNo. 6531, Acinetobacter sp. having a collection number of CGMCC No. 6532, and Microbacterium sp. having a collection number of CGMCC No. 6530. The complex microbial agent can take the polycyclic aromatic hydrocarbons, such as fluorine, naphthalene, anthracene, acenaphthene, acenaphthylene, dibenzothiophen, carbazole, chrysene, phenanthrene, pyrene, fluoranthene, benzofluoranthrene, benzanthraceneor benzopyrene as the unique carbon source. The complex microbial agent disclosed by the invention is capable of obviously improving the degradation effect of single colony on organic contaminated soil, the fermentation time of three strains is short, the effect is obvious, and the cost is low. Therefore, the complex microbial agent has strong application prospects and popularization value on polycyclic aromatic hydrocarbon heavy contaminated soil and water.
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Description

technical field

[0001] The invention belongs to the technical field of environmental microorganisms, and in particular relates to a composite microbial agent for efficiently degrading polycyclic aromatic hydrocarbons and its application. Background technique

[0002] Polycyclic aromatic hydrocarbons (PAHs) are a class of environmental pollutants that can persist in the environment for a long time and have strong carcinogenic, teratogenic and mutagenic properties. Such substances are generally poorly soluble in water, have high octanol-water partition coefficients, and low vapor pressures. Under natural conditions, polycyclic aromatic hydrocarbons are very stable and difficult to be biodegraded and utilized. With the increase of the number of benzene rings, the fat-solubility of polycyclic aromatic hydrocarbons increases, and the water-solubility decreases. The longer they exist in the environment, the higher the genotoxicity.

[0003] Farmland pollution mainly comes from s...

Claims

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