Ex-situ thermal desorption remediation device and remediation method for soil

A remediation method, soil heating technology, which is applied in the field of remediation of organically polluted soil in environmental protection, can solve the problems of large influence of moisture content and low remediation efficiency, and achieve the effects of large processing capacity, rapid construction, and easy installation and disassembly

Pending Publication Date: 2019-12-03
上海环境绿色生态修复科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and solve the problems o

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  • Ex-situ thermal desorption remediation device and remediation method for soil

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[0052] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0053] according to figure 1 The shown ex-situ soil thermal desorption repair equipment includes a construction platform for stacking contaminated soil piles to be processed and an insulation layer 1 for laying on top of the contaminated soil piles to be processed; the construction platform is from bottom to top The concrete layer 2, the heat insulation layer 3, the water filter layer 4, and the geotextile 5 are arranged in sequence. The water filter layer 4 is provided with a water collection cavity 6, and the water collection cavity 6 is provided with a submersible pump 7 for discharging water An impermeable membrane 8 is laid on the thermal insulation layer 1; there are also pumping pipes 9, heating pipes 10 and air pumping pipes 11 for inserting into the contaminated soil pile to be treated.

[0054] A supporting soil pile 12 is stacked around the construct...

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Abstract

The invention relates to an ex-situ thermal desorption remediation device and remediation method for soil. The device includes a construction platform for stacking polluted soil piles to be treated and a thermal insulation layer which is spread on the tops of the polluted soil piles to be treated; the construction platform is provided with a concrete layer, a heat insulation layer, a water filterlayer and a geotextile in sequence from the bottom to the top; the interior of the water filter layer is provided with a water collection cavity, and the interior of the water collection cavity is provided with a submersible pump for discharging water; an anti-seepage film is spread on the thermal insulation layer; and water suction pipes, heating pipes and gas suction pipes which are inserted into the polluted soil piles to be treated are also arranged. The device provided by the invention has the beneficial effects of a large treatment amount of polluted soil, high efficiency of thermal desorption, convenient reutilization of equipment and high cost performance.

Description

technical field [0001] The invention relates to the technical field of remediation of organic polluted soil in environmental protection, in particular to an ex-situ soil thermal desorption remediation system. Background technique [0002] In recent years, the problem of soil and groundwater pollution has become increasingly prominent, threatening the human body and the surrounding environment, and even endangering life in severe cases. Organically polluted soils are common and present environmental hazards. High-concentration organic-contaminated soils are difficult to remediate by conventional oxidation or multiphase extraction processes. [0003] In recent years, there have been more and more cases of thermal desorption technology being used in organically polluted soils. However, the traditional ectopic thermal desorption equipment has small processing capacity, long construction period and high energy consumption. There is an urgent need for efficient thermal desorpti...

Claims

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Application Information

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IPC IPC(8): B09C1/06
CPCB09C1/062
Inventor 张汝壮诸毅李影辉方兴斌陈奕宋厚燃薛梦雨孙爽
Owner 上海环境绿色生态修复科技有限公司
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