A kind of soil layering restoration method

Abstract

The invention discloses soil, lightly polluted soil, and non-polluted soil. A repairing pond is dug out in a polluted area, and a method for repairing the soil by layering the pond, which specifically includes the following steps: S1. Conducting field investigation on the polluted soil; S2. The polluted soil is divided into three layers. From top to bottom, lay a layer of anti-seepage layer for the heavy pollution. Then put the chemical remediation device into the remediation pond. Put them into the repair pond; S3, place a repair tank on one side of the repair pond, and repair liquid in the repair tank, connect the repair tank and chemical repair device through the transmission pipe, and install a high-pressure pump between the transfer pipe and the repair tank , the high-pressure pump pumps the remediation fluid into the chemical remediation device to remediate heavily polluted soil; S4, lightly polluted soil is remediated with improved beneficial bacteria; S5, plant plants on the polluted area for soil enrichment and purification.

Description

technical field [0001] The invention belongs to the technical field of soil restoration, and in particular relates to a layered soil restoration method. Background technique [0002] The soil is originally a natural shelter and purification treatment site for various wastes. When the soil contains too many pollutants, which affects or exceeds the self-purification ability of the soil, the soil itself also needs to be repaired. There are many reasons for soil pollution. Due to urban expansion, some pesticide factories, chemical fertilizer factories, chemical factories, etc. originally distributed in the outskirts of the city have become the central area of ​​the city. When the land use was changed, it was found that the soil was seriously polluted by heavy metals and organic matter and could not be recovered. As a place for human life, residence and activities, it must be treated and repaired before it can be used. In addition, some farmlands have been polluted by sewage and...

AI Technical Summary

Problems solved by technology

Removing the contaminated soil for remediation requires a large amount of work and is not suitable for large-scale soil remediation

In-situ restoration is often carried out directly by adding soil remediation agents, but since the components of soil remediation agents are different, and after adding soil remediation agents, the amount of soil remediation agents cannot be controlled, resulting in waste of soil remediation agents , and the efficiency of soil remediation is not high

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