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KMID : 0380020060210030175
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Korean Journal of Biotechnology and Bioengineering
2006 Volume.21 No. 3 p.175 ~ p.180
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Bacterial Behavior in Soil under Electric Field and its Effect on Electrokientic Bioremediation
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Kim Sang-Joon
Park Ji-Yeon
Lee You-Jin
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Abstract
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In this study, it could be found that the microbial movement in soil under electric field mainly occurred by electrophoresis and electroosmosis. The contribution of electrophoresis on the microbial mobility and flux was generally higher than that of electroosmosis. In the electrokinetic (EK) bioremediation of a pentadecane-contaminated soil, the microbial population increased simultaneously at anode and cathode regions of the soil specimen because both electrophoresis and electroosmosis affected on the microbial movement. After initial operation, the microbial population was high in order of anode, middle, and cathode regions due to their negatively-charged surface and oxygen generation at anode. However, the uniform contaminant removal was achieved by the microbial movement with two-directionality.
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KEYWORD
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Electric field, microbial movement, electrokinetic bioremediation, electrophoresis, electroosmosis
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