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Device and method for repairing contaminated soil through combination of focusing type hierarchical electric method and injected solution

A focused technology for polluted soil, applied in the field of devices for repairing polluted soil by the focused layered electrokinetic method combined with injection fluid, can solve the problems of secondary pollution, high cost, large engineering volume, etc., achieve fast repair speed and save energy consumption , Improve the effect of repair rate

Inactive Publication Date: 2015-01-07
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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AI Technical Summary

Problems solved by technology

This method can effectively isolate the polluted soil from the ecological system and reduce the impact on the environment. The technical principle is relatively simple, but the engineering volume is large, the cost is high, and secondary pollution is likely to be caused during transportation.

Method used

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  • Device and method for repairing contaminated soil through combination of focusing type hierarchical electric method and injected solution
  • Device and method for repairing contaminated soil through combination of focusing type hierarchical electric method and injected solution
  • Device and method for repairing contaminated soil through combination of focusing type hierarchical electric method and injected solution

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Embodiment 1

[0027] A device for remediating polluted soil by a focused hierarchical electrokinetic method combined with injection fluid, such as figure 1 with 2As shown, the shown device includes a focused hierarchical electric processing device and an automatic liquid injection processing device. In the focused hierarchical electrokinetic treatment device, the electrode chamber is placed in three layers. Firstly, a cathode chamber 1 is horizontally placed on the soil surface, a cathode 4 is placed in the cathode chamber 1, a PRB reaction wall 9 is placed on the outer layer of the cathode chamber 1, and then two primary anode chambers 2-1 are horizontally placed in the polluted soil middle layer. , 2-2, place the primary anodes 5-1, 5-2 horizontally in two primary anode chambers respectively, and place three secondary anode chambers 3-1, 3-2, 3-3. Place the secondary anodes 6-1, 6-2, and 6-3 horizontally in the three secondary anode chambers respectively. The cathode chamber 1, the pri...

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Abstract

The invention discloses a device and method for repairing contaminated soil through the combination of a focusing type hierarchical electric method and an injected solution. The repairing device comprises a focusing type hierarchical electric treatment system and an automatic injection control treatment system; a chemical agent is injected into the soil by using the automatic injection control treatment system so as to completely decompose various combination states of radioactive element-strontium; in the focusing type electrode repairing, contaminants in the deep soil is gradually focused to a central region of a surface layer at a certain angle, so that the containment area is reduced; the hierarchical electrode repairing not only can transport and enrich the containments to the surface layer, but also can lower the energy consumption, shorten the treatment time and improve the processing efficiency. The device and the method can increase the repairing speed, has the good repairing effect and is capable of effectively removing strontium containments.

Description

technical field [0001] The invention belongs to the field of in-situ remediation of strontium-contaminated soil, and in particular relates to a device and method for remediating polluted soil by a focused hierarchical electrokinetic method combined with injection liquid. Background technique [0002] With the rapid development of global industrialization, radioactive pollution is becoming more and more serious. Many activities such as nuclear testing, nuclear weapon manufacturing, nuclear energy production and nuclear accidents, production and application of radioisotopes, mining, smelting and application of minerals have brought radioactive pollution to the environment. After radionuclides enter the soil, they not only cause serious harm to human health through the food chain, but also cause serious difficulties for people to repair these nuclides. Radioactive pollutants can produce radiation through radioactive decay, and radiation generally has strong carcinogenic and te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/08
Inventor 何理董焕焕卢宏玮申婧
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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