Method for remedying organic contaminated soil through electric diffusion-electric heating coupling

A technology for soil and organic pollution remediation, applied in the restoration of polluted soil and other directions, can solve problems such as low utilization rate, and achieve the effect of rapid migration, in-situ controllable and efficient activation
CN107570532AInactive Publication Date: 2018-01-12陆隽鹤 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
陆隽鹤
Publication Date
2018-01-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for remedying organic contaminated soil through electric diffusion-electric heating coupling. According to the method, a direct-current electric field is applied to achieve directed migration of persulfate molecules in the contaminated soil; and after persulfate migrates to a target contaminated area, an alternating-current electric field is adopted, and heat generated by currents is used for in-situ activation of the persulfate, so that sulfate radical anions with the strong oxidizing property are generated to degrade pollutants. By adoption of the method, directed and rapid migration of an oxidizing agent, namely the persulfate, in soil can be achieved, and meanwhile, controllable efficient in-situ activation of the persulfate in soil can also be achieved.
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Description

Technical field:

[0001] The invention belongs to the technical field of environmental protection, relates to the restoration of soil organic pollution, and in particular relates to a method for repairing soil organic pollution coupled with electrodynamic diffusion and electric heating. Background technique:

[0002] Soil pollution caused by industrial emissions, mining, transportation, etc. has become an important factor restricting the sustainable development of my country's economy and society. Treatment methods for contaminated soil include landfill, incineration, high-temperature desorption, soil leaching, chemical oxidation, and microbial remediation, among which the in-situ chemical oxidation (ISCO) technology has become a Main methods of groundwater and soil remediation. In-situ chemical oxidation remediation technology is a contaminated soil remediation technology mainly through the oxidation reaction between chemical oxidants mixed into the soil and pollutants to d...

Claims

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