Solar in-situ reinforced vapor extracting system for restoring soil organic pollutants

Abstract

The invention relates to a solar in-situ reinforced vapor extracting system for restoring soil organic pollutants. The solar in-situ reinforced vapor extracting system comprises a pipeline of a vapor extracting pipe 4, a water circulating system pipeline buried in organic pollutant soil, a solar heat collecting system 1, a heat insulating water tank 2, a gas purifying system and a soil water replenishing system, wherein the water circulating system pipeline is communicated with the solar heat collecting system 1 on the ground so as to form a solar circulating water heating system, the water circulating system pipeline is communicated with the heat insulating water tank 2 so as to form a heat insulating water tank heat storage circulating water system, and the solar heat collecting system 1 is communicated with the heat insulating water tank 2 so as to form a solar and heat insulating water tank combination circulating water heating system; pumps 12 and 13 and valves 7, 8, 9, 10 and 11 are arranged on pipelines of the solar circulating water heating system, the heat insulating water tank heat storage circulating water system and the solar and heat insulating water tank combination circulating water heating system; and the pipeline of the vapor extracting pipe 4 is communicated with the gas purifying system on the ground. The system utilizes solar reinforced in-situ vapor extraction to restore the soil organic pollutants, is compact, is convenient to operate and saves energy.

Description

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

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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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