| Title: |
In Situ Oxidation Focus Area
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| Resource Type: |
web links
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| Producers or distributor |
US Environmental Protection Agency (US EPA)
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| Author / Producer Type: |
Agency, regulator or other governmental or inter-governmental body
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| Web link for product information: |
http://clu-in.org/isco
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EUGRIS Keyword(s): |
Contaminated land-->Remediation options-->In situ treatment technologies
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| Short description: |
. In situ chemical oxidation, also referred to as ISCO, is an aggressive remediation technology that has been applied to a wide range of volatile and semivolatile hazardous contaminants, including DNAPL source zones and the dissolved-phase chemicals emanating from the source zones. The 2010 Superfund Remedy Report (Thirteenth Edition) reports that ISCO was selected as a remedy at 36 Superfund sites during the period 2005 to 2008. Chemical oxidation typically involves reduction/oxidation (redox) reactions that chemically convert hazardous compounds to nonhazardous or less toxic compounds that are more stable, less mobile, or inert. Redox reactions involve the transfer of electrons from one compound to another. Specifically, one reactant is oxidized (loses electrons) and one is reduced (gains electrons). The oxidizing agents most commonly used for treatment of hazardous contaminants in soil and groundwater are hydrogen peroxide, catalyzed hydrogen peroxide, potassium permanganate, sodium permanganate, sodium persulfate, and ozone. Each oxidant has advantages and limitations, and while applicable to soil contamination and some source zone contamination, they have been applied primarily toward remediating groundwater
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Submitted By:
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Professor Paul Bardos WhoDoesWhat?
Last update: 01/12/2011
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