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Soilgas phase extracting monitoring system device and monitoring method

A gas phase extraction and monitoring system technology, which is used in measurement devices, restoration of polluted soil, instruments, etc., to achieve the effects of convenient and fast measurement, rapid installation and simple design

Inactive Publication Date: 2007-08-22
TIANJIN UNIV
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Problems solved by technology

[0005] Let's look at an example of an SVE device. The SVE device in US Patent No. 5,360,067 includes at least one gas extraction well and an injection well. It injects combustion gas into the polluted soil through the injection well. It is actually a thermally enhanced SVE system. Its application has Certain limitations, only suitable for the treatment of hydrocarbon pollutants with high bubble point

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  • Soilgas phase extracting monitoring system device and monitoring method

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Embodiment Construction

[0033] A kind of soil gas phase extraction device and its extraction and monitoring well system of the present invention, specifically comprise that the pollutants mainly in the gas phase and liquid phase in the field soil are extracted through the main well and monitored after passing through the soil gas phase extraction device. Auxiliary wells, pressure measuring points or injection points are finally extracted above the surface 18 to complete soil field tests or treatment goals. The system design, installation and monitoring methods have their own unique features:

[0034] 1) The suction port of the air pump in the soil gas phase extraction device is provided with a temporary valve to facilitate on-site measurement of the SVE system curve; the front end of the suction port of the air pump is connected to a pressure measurement system, which is convenient and quick to measure; the gas-liquid separator in the SVE device is provided with an elbow 13 and filled with The random ...

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Abstract

The invention relates to a kind of soil locale testing and in situ repair device and its system. It is composed of the soil gas phase extractive monitor system device and extractive well, monitor well, pressure testing point, the soil gas phase extractive device links the locale extractive well, the monitor well with the ground pipeline. The soil gas phase extractive device and its extractive well, monitor well, the ground extractive device and the pipeline such as measure as well as the underground raise part combined well to compose the locale soil testing and the idea, high-activity system. The invention can reach the anticipate aim of testing or reducing pollution in smaller device invest. The locale testing approves that, the invention has the soil and underground water in situ repair system, which is designed reasonable, the device is simple, the operation are convenience and feasible, it is easy to maintenance, the process of the locale testing and the pilot-plant is easy to control, it will have wide application foreground.

Description

technical field [0001] The invention relates to a soil field test and in-situ restoration device and its system, in particular to a monitoring method for soil restoration using a system consisting of a soil vapor extraction (SVE) device and its extraction, monitoring wells, and pressure measuring points . Background technique [0002] The soil and groundwater environment are the basis for human survival. With the process of global industrialization, organic pollution has surpassed heavy metal pollution and radioactive pollution and has leapt to the top. In particular, the leakage of underground oil storage tanks and the spillage accidents of volatile organic hydrocarbons have caused varying degrees of pollution to the soil in the unsaturated area. If the soil in this area is not treated in time, it will seriously cause groundwater pollution, and its treatment is difficult. And costs will multiply. Therefore, ex-situ and in-situ soil remediation techniques have emerged, amo...

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Application Information

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IPC IPC(8): G01N33/00G01N35/00B09C1/00
Inventor 杨乐巍黄国强姜斌李鑫钢
Owner TIANJIN UNIV
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