Enterobacterium-polygonum hydropiper combined method used for restoration of manganese polluted soil

Abstract

The invention discloses an enterobacterium-polygonum hydropiper combined method used for restoration of manganese polluted soil, and belongs to the field of manganese polluted soil restoration. According to the method, a manganese-resistant enterobacterium is adopted to enhance and promote enrichment of manganese by polygonum hydropiper, so that rapid high-efficiency restoration on manganese polluted soil is realized; adding of the enterobacterium is capable of promoting polygonum hydropiper growth; and at the same time, the manganese content of the roots, stems, and leaves of polygonum hydropiper is increased gradually with increasing of the enterobacterium, the enrichment amount of the overground parts on manganese is increased with increasing of the concentration of the enterobacterium; adding of the enterobacterium is capable of increasing polygonum hydropiper plant extraction coefficient, biological accumulation coefficient, and transhipment coefficient effectively; after adding of the enterobacterium, polygonum hydropiper, rhizosphere soil manganese effective state content and pH value are both reduced. No secondary pollution is caused by the method, the method is safe and effective, environment destroy is low, operation is convenient, and the method is suitable for restoration of manganese polluted soil.

Description

technical field [0001] The invention relates to the technical field of repairing soil heavy metal pollution, in particular to a joint repair method based on enterobacteria and Polygonum hydroponica in manganese-contaminated soil. Background technique [0002] In recent years, with the development of industrialization, various industrial wastes containing heavy metals are directly discharged into the environment. Heavy metals enter the soil through a series of interception, redox reactions, etc., and are retained through adsorption, precipitation and complexation. in the soil. The heavy metals in the soil will enter the food chain through the enrichment of plants, which will bring great harm to the health of humans and animals. The problem of heavy metal pollution in soil has attracted widespread attention around the world, and the remediation technology of heavy metal contaminated soil has become the focus and difficulty of research by scientists from all over the world. T...

AI Technical Summary

Problems solved by technology

The key to the plant-microbe joint remediation technology is to construct an effective plant-microbe combination. At present, the research on plant-microbe joint remediation at home and abroad is still in its infancy, and most of the research results are obtained through experimental experiments under laboratory conditions. Yes, there are not many practical cases of microbial-plant joint restoration, so how to effectively apply the effective combination found under laboratory conditions to practice still needs to be further strengthened

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