Copper activation bacterium and method for plants renovation of soil pollution by heavy metal

Abstract

The invention relates to a copper activated bacterium and a method for strengthening the recovery to the heavy metal pollution in the vegetable soil, and belongs to the agricultural and environmental pollution treatment technical field. The JYC17 culture stain of heavy metal copper activated bacteria is the Microbacterium sp. The effective living microbial numbers of the liquid preparation are above a billion per millimeter, and the effective living microbial numbers of the solid preparation are 200 millions per gram. The using method is that: when the seeds of the plant are seminated in humid soil containing heavy metals, the bioremediation preparation of the JYC17 culture stain is inoculated, and 10 to 20mL of the bacteria liquid of 10<8> bacteria JYC17 / mLs is inoculated in each grams of soil once or in two times. The culture stain has good activation effect to the deposited copper in the solution and the activation rate up to above 73 percent. That the plant is implanted and the bioremediation preparation is inoculated in humid soil containing heavy metals promotes the absorption and the extraction of the plant to the heavy metal copper and improve the extraction and recovery efficiency.

Description

1. Technical field

[0001] The invention relates to a copper-activated bacterium and a phytoremediation method for soil heavy metal pollution, and belongs to the technical field of agriculture and environmental pollution control. It specifically involves the use of a bacteria-enhanced plant to extract copper heavy metals in soil, thereby realizing phytoremediation of soil heavy metal pollution. 2. Technical background

[0002] Heavy metals are a class of accumulative pollutants that have a wide range of sources in the soil environment and are very harmful. They not only degrade soil fertility, reduce crop yield and quality, deteriorate the water environment, and endanger human life and health through the food chain. Soil heavy metal pollution is becoming more and more serious, therefore, remediation of heavy metal polluted soil has become very urgent. Compared with the traditional physical and chemical methods, which are expensive and complicated to operate, phytoremediation...