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Air injection system and method for in situ restoration of volatile pollutant in underground water

An in-situ remediation and injection system technology, applied in the restoration of contaminated soil, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problems of difficult industrial large-scale application, high remediation cost, and slow remediation progress

Active Publication Date: 2013-01-02
BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
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Problems solved by technology

[0005] The present invention provides an air injection system and method for in-situ repairing of volatile pollutants in groundwater, to solve the technical problems of slow progress in in-situ repairing of groundwater, high repair costs, damage to the ecological environment, and difficulty in industrialized large-scale application

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  • Air injection system and method for in situ restoration of volatile pollutant in underground water
  • Air injection system and method for in situ restoration of volatile pollutant in underground water
  • Air injection system and method for in situ restoration of volatile pollutant in underground water

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[0092] Examples see figure 1 , figure 2 As shown, the air injection system for in-situ remediation of volatile organic pollutants in groundwater includes air supply equipment, air injection well 1, groundwater monitoring well 2 and soil gas monitoring well 3. The gas supply equipment is composed of underground gas supply equipment and ground gas supply equipment. In the air injection impact test, at least one air injection system 1 is provided, at least two groundwater monitoring wells 2 are provided, and five soil gas monitoring wells 3 are provided at least, and the groundwater monitoring well 2 is figure 1 Mark G1, G2, G3, and soil gas monitoring well 3 in the figure 1 Mark S1, S2, S3, S4, S5, S6, the layout of the groundwater monitoring well 2 and the soil gas monitoring well 3 should be able to obtain the airflow distribution in different distances and directions from the air injection well 1, the specific layout can be Adjust accordingly to site conditions.

[0093]...

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Abstract

An air injection system and a method for in situ restoration of volatile pollutants in underground water. The system comprises air feed equipment, an air injection well, an underground water monitoring well and a soil gas monitoring well. The air feed equipment comprises two parts of underground air feed equipment and overground air feed equipment. The underground air feed equipment comprises a gas injection steel pipe and an expansion-type gas obstruct device; and the overground air feed equipment comprises a gas injection pipeline connected with the gas injection steel pipe and a gas filledpipeline connected with an inflation interface of the expansion-type gas obstruct device. The invention requires low-cost equipment, has high working efficiency and guarantees rapid restoration of underground water. In addition, an underground water restoration process causes no secondary pollution on the ecological environment; therefore, the technology is suitable to be widely applied to underground water restoration of polluted places to solve a problem of underground water pollution efficiently and fast.

Description

technical field [0001] The invention belongs to the field of in-situ restoration of groundwater pollution, and in particular relates to a groundwater restoration system and method for polluted sites. Background technique [0002] With the rapid development of industrial production, the problem of groundwater pollution in my country has become increasingly prominent, and the impact of groundwater pollution on the environment and economic development has also become increasingly apparent. At present, developed countries have invested a lot of manpower and material resources to remediate the polluted areas, and the in-situ remediation technology of groundwater has also been developed rapidly. In order to ensure the safety of the ecological environment system and the sustainable use of groundwater, it is necessary to restore the polluted groundwater. Therefore, the research and development of related restoration technologies is imminent. [0003] my country started relatively l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14B09C1/10
Inventor 姜林张丹樊艳玲姚珏君钟茂生
Owner BEIJING MUNICIPAL RES INST OF ENVIRONMENT PROTECTION
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