Chemical enhanced remediation method for organic contaminated soil

A technology of polluted soil and remediation method, which is applied in the field of chemically enhanced remediation of organic polluted soil, which can solve the problems of easy volatilization and small range of pollutants, and achieve the effect of small equipment investment and broad application prospects

Inactive Publication Date: 2013-03-20
TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION
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  • Application Information

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Problems solved by technology

This process has the advantages of low energy consumption and simple operation, but the range of pol

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  • Chemical enhanced remediation method for organic contaminated soil

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0019] Such as figure 1 As shown, the method for chemically intensified remediation of organic polluted soil of the present invention includes (1) centralized storage and transportation of polluted soil; (2) chemical intensified treatment process; (3) polluted tail gas treatment process; (4) soil acceptance and transport process. stage.

[0020] Specifically, the following steps are included:

[0021] (1) Centralized storage and transportation of contaminated soil: transport the contaminated soil from the contaminated site to a sealed treatment workshop for temporary storage;

[0022] (2) Chemical intensification treatment process: In the sealed treatment workshop, quicklime is mixed into the polluted soil, and the soil mixed with quicklime is intermittently sifted through the soil sieve equipment, and the water released by the reaction betwee...

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Abstract

The invention discloses a chemical enhanced remediation method for organic contaminated soil. The chemical enhanced remediation method comprises the following steps of: (1) centralized storage and transportation process of the contaminated soil; (2) a chemical enhanced treating process; (3) a polluting tail gas treatment process; and (4) soil checking and transportation processes. The chemical enhanced remediation method provided by the invention adopts a method combining chemistry and physics, accelerates volatilizing of pollutants by jointly utilizing heat emitted through chemical reaction and the mechanical screening effect and by utilizing the characteristic that the organic pollutants in the soil easily volatilize after being heated, and enables gas containing the pollutants to be subjected to cloth-bag dust removal and activated carbon adsorption treatment by utilizing forced extraction of a vacuum fan, so that the tail gas can be discharged with the standard level, and finally, the aim of remediating the contaminated soil is achieved. Compared with other remediation methods, the project implementation result shows that the process of the method provided by the invention can achieve an expected governance objective with relatively small equipment investment, thus having broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and relates to a method for chemically intensified restoration of organic polluted soil. Background technique [0002] Soil and groundwater are not only important agricultural production resources, but also important environmental elements and natural resources on which human beings depend. The soil on the earth is a collection of various man-made and natural pollutants. Most of the pollutants in the environment will eventually stay in the soil, which will lead to the deterioration of the soil environment. With the rapid development of the petroleum industry and the chemical industry, the pollution of organic substances to the soil has become more and more serious, surpassing heavy metal pollution and radioactive pollution and becoming the first place, forming a large number of contaminated sites. The investigation and remediation of polluted sites has become a worldwide environm...

Claims

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Application Information

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IPC IPC(8): B09C1/06B09C1/08
Inventor 张景辉刘朝辉杨伟李野宋震宇王文茜邵兆俊韩嵩西伟力王旭东
Owner TIANJIN ECOLOGY CITY ENVIRONMENTAL PROTECTION
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