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KMID : 0380020070220030134
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Korean Journal of Biotechnology and Bioengineering
2007 Volume.22 No. 3 p.134 ~ p.138
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Reductive Dechlorination of Chlorinated Phenols in Bio-electrochemical Process using an Electrode as Electron Donor
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Jeon Hyun-Hee
Park Dae-Won
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Abstract
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It was investigated whether an electrode could serve as an electron donor for biological reductive dechlorination of chlorinated phenols in the bio-electrochemical process. There was no dechlorination in the absence of current and scanning electron microscope image showed that the electrode surface was covered with microorganisms. As a result, the electrode attached cells was responsible for reductive dechlorination. Also, initial high chlorinated phenol concentration such as 437 ㎎/ℓ was rapidly reduced within 5 hours. The maximum dechlorination rate using Monod equation was 5.95 ㎎/ℓ-h(㎠ (electrode surface area)) in the bio-electrochemical reactor.
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KEYWORD
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Electrode, electron donor, reductive dechlorination, bio-electrochemical process
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