Kinetics and Functional Bacteria Analysis of Dichlorophenol Degradation by Electro-biological Reduction

doi:10.7503/cjcu20120632

Abstract

Abstract:

The reductive degradation of dichlorophenol(2,4-DCP) was studied in an electro-biological system(electric-assisted microbial system). The colony structure was analyzed by polymerase chain reaction-single strand conformational polymorphism(PCR-SSCP) and a phylogenetic tree was constructed by 16S rRNA gene clone library. The results show that the dichlorophenol degradation in the electro-biological system conforms to the kinetics characteristics of zero-order reaction. Enterococcus, Pseudomonas and Bacteroidales are the dominant bacteria and play a major role in the electron transfer for the electro-biological system. The reverse electron transfer exists between the electrode, cytochrome c, NAD and the pollutants. A long-range electron transfer process of the multiphase interfaces is achieved between the electrode, bacteria and pollutants.

Key words: Electro-biological system, Electronic reverse transfer, Microbial community, Dichlorophenol, Cytochrome c

CLC Number:

O646.54

TrendMD:

CAO Zhan-Ping, ZHANG Jing-Li, ZHANG Hong-Wei. Kinetics and Functional Bacteria Analysis of Dichlorophenol Degradation by Electro-biological Reduction[J]. Chem. J. Chinese Universities, 2013, 34(4): 964.

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