Long-term cathode performance and the microbial communities that develop in microbial fuel cells fed different fermentation endproducts

Handle URI:
http://hdl.handle.net/10754/598230
Title:
Long-term cathode performance and the microbial communities that develop in microbial fuel cells fed different fermentation endproducts
Authors:
Kiely, Patrick D.; Rader, Geoffrey; Regan, John M.; Logan, Bruce E.
Abstract:
To better understand how cathode performance and substrates affected communities that evolved in these reactors over long periods of time, microbial fuel cells were operated for more than 1year with individual endproducts of lignocellulose fermentation (acetic acid, formic acid, lactic acid, succinic acid, or ethanol). Large variations in reactor performance were primarily due to the specific substrates, with power densities ranging from 835±21 to 62±1mW/m3. Cathodes performance degraded over time, as shown by an increase in power of up to 26% when the cathode biofilm was removed, and 118% using new cathodes. Communities that developed on the anodes included exoelectrogenic families, such as Rhodobacteraceae, Geobacteraceae, and Peptococcaceae, with the Deltaproteobacteria dominating most reactors. Pelobacter propionicus was the predominant member in reactors fed acetic acid, and it was abundant in several other MFCs. These results provide valuable insights into the effects of long-term MFC operation on reactor performance. © 2010 Elsevier Ltd.
Citation:
Kiely PD, Rader G, Regan JM, Logan BE (2011) Long-term cathode performance and the microbial communities that develop in microbial fuel cells fed different fermentation endproducts. Bioresource Technology 102: 361–366. Available: http://dx.doi.org/10.1016/j.biortech.2010.05.017.
Publisher:
Elsevier BV
Journal:
Bioresource Technology
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
Jan-2011
DOI:
10.1016/j.biortech.2010.05.017
PubMed ID:
20570144
Type:
Article
ISSN:
0960-8524
Sponsors:
The authors would like to thank Elodie Lalaurette for assisting in the maintenance of the MFCs and Deb Grove at the Penn State Genomics Core Facility - University Park, PA, for DNA sequencing. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST) and the National Renewable Energy Laboratory (RFH-7-77623-01).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorKiely, Patrick D.en
dc.contributor.authorRader, Geoffreyen
dc.contributor.authorRegan, John M.en
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2016-02-25T13:40:03Zen
dc.date.available2016-02-25T13:40:03Zen
dc.date.issued2011-01en
dc.identifier.citationKiely PD, Rader G, Regan JM, Logan BE (2011) Long-term cathode performance and the microbial communities that develop in microbial fuel cells fed different fermentation endproducts. Bioresource Technology 102: 361–366. Available: http://dx.doi.org/10.1016/j.biortech.2010.05.017.en
dc.identifier.issn0960-8524en
dc.identifier.pmid20570144en
dc.identifier.doi10.1016/j.biortech.2010.05.017en
dc.identifier.urihttp://hdl.handle.net/10754/598230en
dc.description.abstractTo better understand how cathode performance and substrates affected communities that evolved in these reactors over long periods of time, microbial fuel cells were operated for more than 1year with individual endproducts of lignocellulose fermentation (acetic acid, formic acid, lactic acid, succinic acid, or ethanol). Large variations in reactor performance were primarily due to the specific substrates, with power densities ranging from 835±21 to 62±1mW/m3. Cathodes performance degraded over time, as shown by an increase in power of up to 26% when the cathode biofilm was removed, and 118% using new cathodes. Communities that developed on the anodes included exoelectrogenic families, such as Rhodobacteraceae, Geobacteraceae, and Peptococcaceae, with the Deltaproteobacteria dominating most reactors. Pelobacter propionicus was the predominant member in reactors fed acetic acid, and it was abundant in several other MFCs. These results provide valuable insights into the effects of long-term MFC operation on reactor performance. © 2010 Elsevier Ltd.en
dc.description.sponsorshipThe authors would like to thank Elodie Lalaurette for assisting in the maintenance of the MFCs and Deb Grove at the Penn State Genomics Core Facility - University Park, PA, for DNA sequencing. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST) and the National Renewable Energy Laboratory (RFH-7-77623-01).en
dc.publisherElsevier BVen
dc.subjectBiocathodesen
dc.subjectCathodesen
dc.subjectMicrobial communityen
dc.subjectMicrobial fuel cellsen
dc.titleLong-term cathode performance and the microbial communities that develop in microbial fuel cells fed different fermentation endproductsen
dc.typeArticleen
dc.identifier.journalBioresource Technologyen
dc.contributor.institutionPennsylvania State University, State College, United Statesen
kaust.grant.numberKUS-I1-003-13en
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