Document Detail

Application of biocathode in microbial fuel cells: cell performance and microbial community.
MedLine Citation:
PMID:  18385994     Owner:  NLM     Status:  MEDLINE    
Instead of the utilization of artificial redox mediators or other catalysts, a biocathode has been applied in a two-chamber microbial fuel cell in this study, and the cell performance and microbial community were analyzed. After a 2-month startup, the microorganisms of each compartment in microbial fuel cell were well developed, and the output of microbial fuel cell increased and became stable gradually, in terms of electricity generation. At 20 ml/min flow rate of the cathodic influent, the maximum power density reached 19.53 W/m3, while the corresponding current and cell voltage were 15.36 mA and 223 mV at an external resistor of 14.9 Omega, respectively. With the development of microorganisms in both compartments, the internal resistance decreased from initial 40.2 to 14.0 Omega, too. Microbial community analysis demonstrated that five major groups of the clones were categorized among those 26 clone types derived from the cathode microorganisms. Betaproteobacteria was the most abundant division with 50.0% (37 of 74) of the sequenced clones in the cathode compartment, followed by 21.6% (16 of 74) Bacteroidetes, 9.5% (7 of 74) Alphaproteobacteria, 8.1% (6 of 74) Chlorobi, 4.1% (3 of 74) Deltaproteobacteria, 4.1% (3 of 74) Actinobacteria, and 2.6% (2 of 74) Gammaproteobacteria.
Guo-Wei Chen; Soo-Jung Choi; Tae-Ho Lee; Gil-Young Lee; Jae-Hwan Cha; Chang-Won Kim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-04-02
Journal Detail:
Title:  Applied microbiology and biotechnology     Volume:  79     ISSN:  0175-7598     ISO Abbreviation:  Appl. Microbiol. Biotechnol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-05-19     Completed Date:  2008-09-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406612     Medline TA:  Appl Microbiol Biotechnol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  379-88     Citation Subset:  IM    
Department of Environmental Engineering, Pusan National University, Busan, South Korea.
Data Bank Information
Bank Name/Acc. No.:
GENBANK/EU426926;  EU426927;  EU426928;  EU426929;  EU426930;  EU426931;  EU426932;  EU426933;  EU426934;  EU426935;  EU426936;  EU426937;  EU426938;  EU426939;  EU426940;  EU426941;  EU426942;  EU426943;  EU426944;  EU426945;  EU426946;  EU426947;  EU426948;  EU426949;  EU426950;  EU426951;  EU426952
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MeSH Terms
Acetates / metabolism
Bacteria / classification,  genetics,  isolation & purification,  metabolism*
Biodegradation, Environmental
Bioelectric Energy Sources* / microbiology
Bioreactors / microbiology
Electrodes / microbiology
Molecular Sequence Data
Nitrates / metabolism
Sewage / microbiology*
Reg. No./Substance:
0/Acetates; 0/Nitrates; 0/Sewage

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