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Electrokinetic-Fenton Process for Removal of Phenanthrene  

양지원 (한국과학기술원 생명화학공학과)
박지연 (한국과학기술원 생명화학공학과)
김상준 (한국과학기술원 생명화학공학과)
이유진 (한국과학기술원 생명화학공학과)
기대정 (한국과학기술원 생명화학공학과)
Publication Information
Journal of Soil and Groundwater Environment / v.9, no.1, 2004 , pp. 47-53 More about this Journal
Abstract
Feasibility of electrokinetic process combined with Fenton-like reaction was investigated for the removal of phenanthrene from contaminated soil. Transport of hydrogen peroxide by electroosmosis and decomposition of phenanthrene by Fenton-like reaction were observed in a model system. Electrical potential gradient and electroosmotic flow (EOF) at 10 mA were higher than those at 5 mA. High accumulated EOF resulted in high removal efficiency of phenanthrene because the large amount of hydrogen peroxide was transfered through the soil. Removal efficiency of phenanthrene by water washing was 8.5% for 7 days. The highest removal efficiency including phenanthrene decomposition was 95.6% for 14 days. After the operation, soil samples with removal efficiency of 95.6% showed low concentrations of phenanthrene and its intermediates. From this result, it was presumed that phenanthrene was decomposed to small molecules or mineralized to water and carbon dioxide due to continuous supply of hydrogen peroxide by electroosmotic flow.
Keywords
Electrokinetic remediation; Fenton-like reaction; Hydroxyl radical; Hydrogen peroxide;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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