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A study on Surfactants for Electrokinetic Soil Remediation  

이현호 (LG 환경안전연구원)
박지연 (한국과학기술원 생명화학공학과)
김상준 (한국과학기술원 생명화학공학과)
이유진 (한국과학기술원 생명화학공학과)
양지원 (한국과학기술원 생명화학공학과)
Publication Information
Journal of Soil and Groundwater Environment / v.8, no.1, 2003 , pp. 1-8 More about this Journal
Abstract
Three different surfactants, APG, Brij30, and SDS, were tested to study the characteristics of sorption on soil surfaces, washing ability, biodegradability, and electrokinetic removal. Kaolinite and phenanthrene were selected as a model soil and a representative HOC, respectively. Phenanthrene was sorbed on kaolinite up to 2,200 mg/kg dry soil. The APG, Brij30, and SDS were sorbed on soil to 40, 7, and 4g/kg soil, respectively. The washing ability of phenanthrene was in order of Brij30＆gt;SDS＆gt;APG. The biodegradability tested with sludge was in order of APG＆gt;Brij30＆gt;SDS. In the electrokinetic test, the highest removal efficiency was obtained with APG that exhibited the highest electroosmotic flow. To increase the removal efficiency of HOC in the electrokinetic remediation, the most important factor was the selection of surfactant which maximized the electroosmotic flow.
Keywords
electrokinetic remediation; surfactant; phenanthrene; biodegradability;
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