Biological ventilation enhanced in-situ multi-phase extraction system

A biological ventilation, in-situ technology, applied in the field of environmental remediation, can solve the problems of not being able to remediate organic-contaminated soil and groundwater at the same time, and taking a long time to remediate, and achieve the effects of avoiding short-circuit phenomena, low cost requirements, and strong system control.

Inactive Publication Date: 2018-01-09
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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Problems solved by technology

[0004] At present, the use of biological ventilation to enhance in-situ multiphase extraction is mainly used to remediate organic matter-contaminated soil, and dual-purpose pumps are also used to remediate organic matter-contaminated soil and groundwater. long time

Method used

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  • Biological ventilation enhanced in-situ multi-phase extraction system
  • Biological ventilation enhanced in-situ multi-phase extraction system

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Such as figure 1 As shown, this embodiment provides a biological ventilation enhanced in-situ multiphase extraction system, which includes a biological ventilation unit that uniformly injects air into the contaminated soil area and a nutrient solution injection unit that uniformly injects nutrient solution into the contaminated soil area; it also includes an extraction well 21. Pollutant dual-pump extraction unit, groundwater treat...

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Abstract

The invention belongs to the technical field of environmental remediation and particularly relates to a biological ventilation enhanced in-situ multi-phase extraction system. The biological ventilation enhanced in-situ multi-phase extraction system comprises a biological ventilation unit which uniformly injects air into a contaminated soil area and a nutrient solution injection unit which uniformly injects a nutrient solution into the contaminated soil area. The biological ventilation enhanced in-situ multi-phase extraction system further comprises a contaminant double-pump extraction unit, agroundwater treatment unit, an unsaturated zone gas treatment unit and extraction wells. The extraction wells are arranged under the ground of the contaminated soil area. The contaminant double-pump extraction unit is arranged on the ground of the contaminated soil area. The contaminant double-pump extraction unit is connected with the groundwater treatment unit and the unsaturated zone gas treatment unit. According to the biological ventilation enhanced in-situ multi-phase extraction system, the efficiency and effect of in-situ multi-phase extraction remediation of the soil and groundwater contaminated by organic matter can be enhanced through biological ventilation, and remediation of the contaminated soil and remediation of groundwater are achieved at the same time by separately extracting the groundwater and soil gas through the double-pump system.

Description

Technical field [0001] The invention belongs to the technical field of environmental restoration, and specifically relates to a biological ventilation enhanced in-situ multiphase extraction system. Background technique [0002] Multiphase extraction is an environmentally friendly soil and groundwater remediation technology. It has the advantages of high remediation efficiency, large affected area, and suitable for high-concentration contaminated soil remediation. Multiphase extraction technology uses vacuum extraction and other means to simultaneously extract soil gas, groundwater and oil slicks from underground contaminated areas to the ground for phase separation and treatment to control and repair soil and groundwater organic matter pollution. Multiphase extraction technology is an in-situ remediation technology, which has less disturbance to the ground environment. It is suitable for gas stations, petrochemical companies and chemical companies and other types of contaminated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00C02F1/44C02F103/06
Inventor 张虎成吴俊峰雍正
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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