Ecological remediation heavy metal contaminated soil treatment method

Abstract

The invention relates to the technical field of soil treatment, and particularly relates to an ecological remediation heavy metal contaminated soil treatment method which comprises the steps of S1, turning soil through an agricultural mechanical soil turning machine; S2, conducting adjustment and treatment on the pH of the soil; S3, carrying out ion antagonism; S4, carrying out microbial remediation; and S5, carrying out phytoremediation, specifically, turning the soil through the agricultural machinery soil turning machine, adjusting and treating the pH of the soil, performing ion antagonism treatment, microbial remediation and phytoremediation, and performing plant and microorganism combined remediation of heavy metals, so that the method is a green, environment-friendly and cheap remediation mode, and under the condition that the ecological environment remediated in-situ, and the biological activity and the soil structure are not changed, a large number of heavy metal elements are directly absorbed through the root systems of the plants, polluted soil is remediated through harvesting of the overground parts of the plants, and the soil remediation energy efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to a treatment method for ecological restoration of heavy metal polluted soil. Background technique [0002] Soil is not only an important part of the earth's ecological circle, but also one of the important natural resources that human beings rely on for survival. With the development of industrial activities such as mineral mining and smelting, and agricultural activities such as sewage irrigation, application of sludge and low-quality chemical fertilizers, harmful heavy metals such as Cd and Pb continue to enter the soil environment, causing pollution to normal production and life. Therefore, the control of soil heavy metal pollution is of great significance to the construction of ecological civilization and the healthy life of human beings. The traditional remediation methods for soil heavy metal pollution are usually physical and chemical methods, such as dilution and s...

AI Technical Summary

Problems solved by technology

The traditional remediation methods of soil heavy metal pollution are usually physical and chemical methods, such as dilution and soil covering method, vitrification technology, heat treatment technology, leaching method, electrochemical method, etc. Although the traditional remediation methods have good treatment effects, they last a short time , but there are many defects

For example, traditional treatment methods are costly, difficult to manage, and easy to cause secondary pollution, etc. According to the different forms of heavy metals in the soil and the different properties of the soil, a method for ecological restoration of heavy metal-contaminated soil is proposed.

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