A solar energy in-situ enhanced gas phase extraction system for remediating soil organic pollutants

Abstract

The invention relates to a system for in-situ enhanced gas phase extraction and repair of soil organic pollutants by solar energy. Including gas phase extraction pipe 4 pipelines, water circulation system pipelines buried in organic pollutant soil, solar heat collection system 1, insulated water tank 2, gas purification system, soil water replenishment system; water circulation system pipelines and solar heat collection on the ground The system 1 is connected to form a solar circulating water heating system, the pipeline of the water circulation system is connected to the thermal insulation water tank 2 to form a thermal storage circulating water system of the thermal insulation tank, and the solar thermal collection system 1 is connected to the thermal insulation tank 2 to form a combined solar-thermal insulation tank heating system; There are pumps 12, 13, valves 7, 8, 9, 10, 11 on the pipelines of the solar circulating water heating system, the heat storage circulating water system of the insulated water tank, and the combined circulation water heating system of the solar-insulated water tank; 4 pipelines of gas phase extraction pipes It is connected with the gas purification system on the ground. This system uses solar energy to strengthen in-situ gas phase extraction to repair soil organic pollutants. The system is compact, easy to operate, and energy-saving.

Description

technical field [0001] The invention relates to the technical field of environmental remediation of polluted sites, in particular to a system for in-situ enhanced gas phase extraction and remediation of soil organic pollutants by solar energy, which is suitable for remediation of soil polluted by volatile organic compounds. Background technique [0002] With the rapid development of China's economy today, the problem of soil pollution is becoming more and more prominent. Many chemical plants, gas stations, raw material tank farms and other facilities "running, leaking, dripping, and leaking" have caused the land to be seriously polluted by organic compounds. These organic compounds remain in the soil or migrate to the atmosphere or groundwater, polluting the ecological environment. Direct or indirect harm to human life and health. The land after the relocation of the enterprise cannot be developed. In recent years, accidents caused by improper disposal of polluted land abou...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a solar energy in-situ enhanced gas phase extraction system for remediating soil organic pollutants in view of the remediation and governance problems existing in the existing soil polluted sites

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