Improving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cells

Handle URI:
http://hdl.handle.net/10754/598584
Title:
Improving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cells
Authors:
Zhang, Fang; Xia, Xue; Luo, Yong; Sun, Dan; Call, Douglas F.; Logan, Bruce E.
Abstract:
In a separator electrode assembly microbial fuel cell, oxygen crossover from the cathode inhibits current generation by exoelectrogenic bacteria, resulting in poor reactor startup and performance. To determine the best approach for improving startup performance, the effect of acclimation to a low set potential (-0.2V, versus standard hydrogen electrode) was compared to startup at a higher potential (+0.2V) or no set potential, and inoculation with wastewater or pre-acclimated cultures. Anodes acclimated to -0.2V produced the highest power of 1330±60mWm-2 for these different anode conditions, but unacclimated wastewater inocula produced inconsistent results despite the use of this set potential. By inoculating reactors with transferred cell suspensions, however, startup time was reduced and high power was consistently produced. These results show that pre-acclimation at -0.2V consistently improves power production compared to use of a more positive potential or the lack of a set potential. © 2013 Elsevier Ltd.
Citation:
Zhang F, Xia X, Luo Y, Sun D, Call DF, et al. (2013) Improving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cells. Bioresource Technology 133: 74–81. Available: http://dx.doi.org/10.1016/j.biortech.2013.01.036.
Publisher:
Elsevier BV
Journal:
Bioresource Technology
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
Apr-2013
DOI:
10.1016/j.biortech.2013.01.036
PubMed ID:
23425580
Type:
Article
ISSN:
0960-8524
Sponsors:
The authors thank D.W. Jones for help with the analytical measurements, and Dr. Xiuping Zhu and Dr. Justin Tokash for useful discussions. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST).
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Fangen
dc.contributor.authorXia, Xueen
dc.contributor.authorLuo, Yongen
dc.contributor.authorSun, Danen
dc.contributor.authorCall, Douglas F.en
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2016-02-25T13:32:35Zen
dc.date.available2016-02-25T13:32:35Zen
dc.date.issued2013-04en
dc.identifier.citationZhang F, Xia X, Luo Y, Sun D, Call DF, et al. (2013) Improving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cells. Bioresource Technology 133: 74–81. Available: http://dx.doi.org/10.1016/j.biortech.2013.01.036.en
dc.identifier.issn0960-8524en
dc.identifier.pmid23425580en
dc.identifier.doi10.1016/j.biortech.2013.01.036en
dc.identifier.urihttp://hdl.handle.net/10754/598584en
dc.description.abstractIn a separator electrode assembly microbial fuel cell, oxygen crossover from the cathode inhibits current generation by exoelectrogenic bacteria, resulting in poor reactor startup and performance. To determine the best approach for improving startup performance, the effect of acclimation to a low set potential (-0.2V, versus standard hydrogen electrode) was compared to startup at a higher potential (+0.2V) or no set potential, and inoculation with wastewater or pre-acclimated cultures. Anodes acclimated to -0.2V produced the highest power of 1330±60mWm-2 for these different anode conditions, but unacclimated wastewater inocula produced inconsistent results despite the use of this set potential. By inoculating reactors with transferred cell suspensions, however, startup time was reduced and high power was consistently produced. These results show that pre-acclimation at -0.2V consistently improves power production compared to use of a more positive potential or the lack of a set potential. © 2013 Elsevier Ltd.en
dc.description.sponsorshipThe authors thank D.W. Jones for help with the analytical measurements, and Dr. Xiuping Zhu and Dr. Justin Tokash for useful discussions. This research was supported by Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectInoculumen
dc.subjectMicrobial fuel cellen
dc.subjectSeparator electrode assemblyen
dc.subjectSet anode potentialen
dc.subjectStartupen
dc.titleImproving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cellsen
dc.typeArticleen
dc.identifier.journalBioresource Technologyen
dc.contributor.institutionPennsylvania State University, State College, United Statesen
dc.contributor.institutionTsinghua University, Beijing, Chinaen
dc.contributor.institutionSun Yat-Sen University, Guangzhou, Chinaen
dc.contributor.institutionHarbin Institute of Technology, Harbin, Chinaen
dc.contributor.institutionSyracuse University, Syracuse, United Statesen
kaust.grant.numberKUS-I1-003-13en
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