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Ectopic coupled repairing system and method for treating organic compound contaminated soil

A technology for polluted soil and compound pollution, applied in the field of contaminated site remediation, can solve the problem that organic compound polluted soil cannot be rehabilitated on a large scale.

Active Publication Date: 2012-01-18
BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
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Problems solved by technology

[0005] The purpose of the present invention is to provide a heterotopic coupling repair system and method for treating organic composite polluted soil, to solve the technical problem that organic composite polluted soil cannot be repaired on a large scale in an industrialized manner

Method used

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  • Ectopic coupled repairing system and method for treating organic compound contaminated soil
  • Ectopic coupled repairing system and method for treating organic compound contaminated soil
  • Ectopic coupled repairing system and method for treating organic compound contaminated soil

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Embodiment Construction

[0032] Examples see figure 1 As shown, this heterotopic coupling remediation system for treating organic compound polluted soil includes a polluted soil pile 1, a nutrient solution and water distribution pipe network connected to the polluted soil pile 1, and an air pump connected to the polluted soil pile 1 and exhaust gas treatment pipe network.

[0033] see Figure 1-3 , the polluted soil heap 1 comprises a concrete base layer 19 laid on the open field, a first layer of geotextile 28 laid on the concrete base layer, a first layer of high-density polymer layer laid on the first layer of geotextile 28 Vinyl chloride anti-seepage membrane 29, the second layer of geotextile 30 laid on the first layer of high-density polyvinyl chloride anti-seepage membrane 29, the gravel air-conducting layer 22 laid on the second layer of geotextile 30, the gravel air-conducting layer 22 laid on the gravel guide The third layer of geotextile 31 on the air layer 22, the polluted soil 23 stacke...

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Abstract

The invention provides an ectopic coupled repairing system and method for treating organic compound contaminated soil. The system comprises a contaminated soil pile body, a nutrient solution and moisture distribution pipe network connected with the contaminated soil pile body, as well as an air exhaust and tail gas treatment pipe network connected with the contaminated soil pile body, wherein the contaminated soil pile body comprises a concrete base layer spreading on an open field, a first layer of geotextile which is spread on the concrete base layer, a first layer of a high-density polyvinyl chloride impermeable membrane which is spread on the first layer of geotextile, a second layer of geotextile which is spread on the first layer of the high-density polyvinyl chloride impermeable membrane, a gravel gas conductive layer which is spread on the second layer of geotextile, a third layer of geotextile which is spread on the gravel gas conductive layer, contaminated soil piled on the third layer of geotextile, as well as a second layer of the high-density polyvinyl chloride impermeable membrane covering on the contaminated soil. The repairing system can be used for repairing large-scale volatile organic matter and biodegradable organic matter compound contaminated soil with low cost, and is suitable for large-scale industrial application.

Description

technical field [0001] The invention belongs to the field of remediation of contaminated sites, in particular to a system for remediating organic composite polluted soil and a method for remediating organic composite polluted soil. Background technique [0002] Soil pollution in my country has posed a threat to the sustainable use of land resources and the ecological security of agricultural products. So far, 36 million hectares of farmland has been polluted by organic pollutants nationwide. The types of pollutants include petroleum, polycyclic aromatic hydrocarbons, pesticides, organic chlorine, etc.; The refining industry also pollutes a large area of ​​land; in the Shenfu petroleum sewage irrigation area, the content of polycyclic aromatic hydrocarbons in the surface and bottom soil both exceeded 600mg / kg, causing serious pollution of crops and groundwater. At the same time, with the continuous advancement of my country's urbanization process, many polluting enterprises ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00
Inventor 姜林姚珏君钟茂生夏天翔樊艳玲张丹
Owner BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
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