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Covering layer structure for restoring contaminated soil through thermal desorption

A technology for polluted soil and covering layer, applied in the field of thermal desorption and remediation of contaminated sites, can solve problems such as covering layer cracking, steam leakage, secondary air pollution, etc., and achieve the effects of preventing dissipation, good waterproof effect, and good sealing effect

Pending Publication Date: 2019-02-05
CENT INT GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem of secondary air pollution caused by cracking and steam leakage in the covering layer in the existing in-situ thermal desorption repair technology for polluted soil. Overlay structure with restoration

Method used

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  • Covering layer structure for restoring contaminated soil through thermal desorption

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Embodiment Construction

[0020] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0021] Such as figure 1 As shown, the present invention provides a covering layer structure for thermal desorption restoration of contaminated soil, which is laid on the ground 1 in the contaminated soil area. The covering layer structure includes a gravel layer 2, a lower steel plate 3 and a concrete layer 4, and the gravel The layer 2 is laid on the ground 1, the lower steel plate 3 is laid on the gravel layer 2, and the concrete layer 4 is set on the lower steel plate 3. Here, the laying thickness of the ...

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Abstract

The invention discloses a covering layer structure for restoring contaminated soil through thermal desorption. The covering layer structure is paved on the ground (1) of a contaminated soil area and comprises a pebble layer (2), a lower-layer steel plate (3) and a concrete layer (4), wherein the pebble layer (2) is paved on the ground (1); the lower-layer steel plate (3) is paved on the pebble layer (2); and the concrete layer (4) is arranged on the lower-layer steel plate (3). According to the covering layer structure, the pebble layer is paved on the ground of the contaminated soil area, thelower-layer steel plate is paved on the pebble layer, and the concrete layer is poured on the lower-layer steel plate, so that dissipation of contaminated steam can be prevented; the lower-layer steel plate can play an excellent sealing effect and also can solve the technical problems about crack and steam leakage caused by the traditional concrete as a covering structure to realize an excellentin-situ restoration effect through thermal desorption.

Description

technical field [0001] The invention relates to the technical field of thermal desorption restoration of polluted sites, in particular to a covering layer structure used for thermal desorption restoration of polluted soil. Background technique [0002] The pollution caused by industrial production leads to soil pollution, which seriously threatens the ecological environment and human health. For the soil pollution of volatile and semi-volatile pollutants, the remediation technology of thermal desorption is a very effective treatment method. In-situ thermal desorption technology is to heat the polluted soil to the target temperature, and control the soil temperature and holding time to promote the gasification and volatilization of pollutants, so that the target pollutants and soil particles are separated and removed. The general thermal desorption technology conducts the hot gas generated by combustion to a certain depth below the ground through the heating well, conducts h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06
CPCB09C1/065B09C2101/00
Inventor 谢海锋叶渊王乾锁李彦希王传锋李含忠于宗莲赵兰宇
Owner CENT INT GROUP
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