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Repairing system and method for heavy metal-organic combined polluted soil and underground water

A technology for compound pollution and remediation system, applied in the field of remediation system of heavy metal-organic compound polluted soil and groundwater, can solve problems such as cumbersome, low remediation efficiency, complicated operation, etc., to strengthen remediation effect, improve remediation efficiency, and improve removal The effect of efficiency

Inactive Publication Date: 2016-02-10
BCEG ENVIRONMENTAL REMEDIATION CO LTD
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Problems solved by technology

[0008] At the same time, another technical problem to be solved by the present invention is to overcome the defects of complex and cumbersome operation and low repair efficiency of the heavy metal-organic pollutant compound polluted soil remediation method in the prior art, thereby providing a heavy metal-organic compound polluted soil and groundwater remediation methods

Method used

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  • Repairing system and method for heavy metal-organic combined polluted soil and underground water

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Embodiment

[0034] The remediation system of heavy metal-organic compound polluted soil and groundwater of the present invention, such as figure 1 shown, including:

[0035] An electrodynamic repair system, comprising a positive electrode 13 and a negative electrode 15 connected to the DC power supply 2; the positive electrode 13 and the negative electrode 15 are respectively arranged in the anode electrolytic cell 12 and the cathode electrolytic cell 14;

[0036] A resistance heating system comprising an anode electrode 13 and a cathode electrode 15 connected to an AC power source 17;

[0037] Soil vapor phase extraction system, comprises gas collection device 11, and described gas collection device 11 is sealed and covered and arranged on the surface of soil 16 to be repaired; Composition, the main pipeline is connected to the vacuum pump 9, the branch pipeline is connected to the main pipeline, and each of the branch pipelines is connected to the gas collection device 11;

[0038] The ...

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Abstract

The invention discloses a repairing system and method for heavy metal-organic combined polluted soil and underground water. The repairing system comprises an electric repairing system, a resistance heating system, a soil gas-phase extraction system, an extracted gas phase treatment system and a system switchover system. The electric repairing system comprises a positive electrode and a negative electrode connected with a direct current power source, and the positive electrode and the negative electrode are arranged in a positive electrode electrolytic cell and a negative electrode electrolytic cell respectively. The resistance heating system comprises a positive electrode and a negative electrode connected with an alternating current power source. The system switchover system comprises a control device which controls the switching-on and off of a first switch and a second switch through a temperature detector probe. According to the repairing system, the electrodes are applied to the resistance heating system and the electric repairing system, effective combination and unification of the electric repairing technology and the heat treatment technology are achieved, equipment of the system is simplified, the repairing effect is enhanced, and the removal efficiency is improved.

Description

technical field [0001] The invention relates to the field of contaminated soil remediation, in particular to a remediation system and method for heavy metal-organic compound polluted soil and groundwater. Background technique [0002] The rapid development of industry has highlighted the problem of environmental pollution, especially the pollution of soil and groundwater caused by unreasonable disposal of hazardous waste. Soil pollution has the characteristics of concealment and irreversibility, which will directly or indirectly endanger human health and cause other environmental problems. [0003] At present, common pollutants can be divided into four categories according to their properties: organic pollutants, heavy metals, radioactive elements and pathogenic microorganisms. Generally speaking, for different pollutants, remediation techniques are also different, as follows: [0004] For heavy metal pollution, electrodynamic remediation technology is commonly used. The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08
CPCB09C1/085
Inventor 张秋子李书鹏孙尧刘阳韦云霄李季卜凡阳
Owner BCEG ENVIRONMENTAL REMEDIATION CO LTD
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