Spatial uniformity of microbial diversity in a continuous bioelectrochemical system

Dennis, Paul G., Guo, Kun, Imelfort, Michael, Jensen, Paul, Tyson, Gene W. and Rabaey, Korneel (2012) Spatial uniformity of microbial diversity in a continuous bioelectrochemical system. Bioresource Technology, 129 10: 599-605. doi:10.1016/j.biortech.2012.11.098

Author Dennis, Paul G.
Guo, Kun
Imelfort, Michael
Jensen, Paul
Tyson, Gene W.
Rabaey, Korneel
Title Spatial uniformity of microbial diversity in a continuous bioelectrochemical system
Journal name Bioresource Technology   Check publisher's open access policy
ISSN 0960-8524
Publication date 2012-12-01
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.biortech.2012.11.098
Open Access Status Not Open Access
Volume 129
Issue 10
Start page 599
End page 605
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Subject 1502 Bioengineering
2305 Environmental Engineering
2311 Waste Management and Disposal
Abstract Bioelectrochemical systems (BESs) are emerging as a technology with diverse future applications. Anode-associated microbial diversity and activity are known to change over time, but the consequences of these dynamics on BES functioning are poorly understood. A novel BES with exchangeable anodic electrodes that facilitates characterisation of microbial communities over time was constructed. The BES, received a mixture of volatile fatty acids and produced 0.13 mA cm−2 of anodic electrode surface, leading to the removal of 14 g chemical oxygen demand per m2 electrode per day at a coulombic efficiency of 76%. Pyrosequencing of 16S rRNA genes revealed no differences in the diversity of microbial communities associated with different electrodes within a single time point. This finding validates the design for temporal studies as changes in microbial diversity observed over time can be related to community development rather than spatial variation within the reactor.
Keyword Bioelectrochemical system
Microbial fuel cell
Microbial communities
Electroactive biofilms
Spatial variation
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID ARC DP0879245
Institutional Status UQ
Additional Notes Available online: 4 December 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Chemistry and Molecular Biosciences
Advanced Water Management Centre Publications
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Created: Sat, 19 Jan 2013, 00:01:58 EST by Mrs Louise Nimwegen on behalf of School of Chemistry & Molecular Biosciences