Electrokinetic remediation of fluorine-contaminated soil: Conditioning of anolyte

Title
Electrokinetic remediation of fluorine-contaminated soil: Conditioning of anolyte
Authors
김도형전칠성백기태고성환양중석
Keywords
electrokinetic; pH control; circulation; enhanced electrokinetic remediation; fluorine removal; anolyte conditioning
Issue Date
2009-01
Publisher
Journal of hazardous materials
Citation
VOL 161, NO 1, 565-569
Abstract
The feasibility of anolyte conditioning on electrokinetic remediation of fluorine-contaminated soil was investigated with a field soil. The initial concentration of fluorine, pH and water content in the soil were 414 mg/kg, 8.91 and 15%, respectively. Because the extraction of fluorine generally increased with the soil pH, the pH of the anode compartment was controlled by circulating strong alkaline solution to enhance the extraction of fluorine during electrokinetic remediation. The removal of fluorine increased with the concentration of the alkaline solution and applied current density and fluorine removed up to 75.6% within 14 days. Additionally, anolyte conditioning sharply increased the electro-osmotic flow, which enhanced the removal of fluorine in this study. In many respects, anolyte conditioning in electrokinetic remediation of fluorine-contaminated soil will be a promising technology.
URI
http://pubs.kist.re.kr/handle/201004/34797
ISSN
0304-3894
Appears in Collections:
KIST Publication > Article
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