A microbial strain resistant to heavy metals and its application

Abstract

The invention belongs to the technical field of bio-ecological restoration of heavy metal-contaminated soil, and in particular relates to a heavy metal-tolerant microbial strain and its application. The Pseudomonas of the present invention was preserved on April 23, 2021 in the General Microbiology Center of the China Microbiological Culture Collection Management Committee. The preservation address is No. 3, No. 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC No. 22233 , identified as Pseudomonas taiwanensis (Pseudomonas taiwanensis). The strain was screened from the soil of the copper tailings area in Diaoquan. The strain is rod-shaped, with perinatal flagella, can move, and is a Gram-positive bacterium. It can be used for the precipitation and solidification of Cu, Cr, Cd, Pb and Zn in heavy metal polluted soil.

Description

A heavy metal tolerant microbial strain and its application technical field The invention belongs to the biological-ecological restoration technical field of heavy metal polluted soil, be specifically related to a strain resistant to heavy metal Genus microbial strains and their applications. Background technique [0002] Heavy metals are typical soil pollutants, and have the characteristics of concealment, refractory degradation, poor mobility and easy to be enriched. It can affect soil microflora, ecological species and microbial processes, thereby affecting the structure and function of ecosystems. soil weight Metal pollution is the focus and difficulty of soil ecological governance. At present, the remediation methods for heavy metals in soil are mainly by removing heavy metals. Or fix pollutants to reduce their mobility and bioavailability, traditional restoration methods include: ① Removing soil, turning soil, removing surface Soil-based engineering treatment ...

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Problems solved by technology

However, these restoration methods are costly, take a long time, require a large amount of engineering, and have a low degree of soil reuse.

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