Reductive Dechlorination of Chlorinated Phenols in Bio-electrochemical Process Using an Electrode as Electron Donor
2007
Jeon, H.H. (Seoul National University of Technology, Seoul, Republic of Korea) | Pak, D.W. (Seoul National University of Technology, Seoul, Republic of Korea), E-mail: [email protected]
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 mg/ℓ was rapidly reduced within 5 hours. The maximum dechlorination rate using Monod equation was 5.95 mg/ℓ -h(㎠ (electrode surface area)) in the bio-electrochemical reactor.
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