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dc.contributor.authorLaBarge, Nicole
dc.contributor.authorYilmazel, Yasemin Dilsad
dc.contributor.authorHong, Pei-Ying
dc.contributor.authorLogan, Bruce E.
dc.date.accessioned2017-01-02T08:42:36Z
dc.date.available2017-01-02T08:42:36Z
dc.date.issued2016-09-09
dc.identifier.citationLaBarge N, Yilmazel YD, Hong P-Y, Logan BE (2017) Effect of pre-acclimation of granular activated carbon on microbial electrolysis cell startup and performance. Bioelectrochemistry 113: 20–25. Available: http://dx.doi.org/10.1016/j.bioelechem.2016.08.003.
dc.identifier.issn1567-5394
dc.identifier.pmid27622557
dc.identifier.doi10.1016/j.bioelechem.2016.08.003
dc.identifier.urihttp://hdl.handle.net/10754/622190
dc.description.abstractMicrobial electrolysis cells (MECs) can generate methane by fixing carbon dioxide without using expensive catalysts, but the impact of acclimation procedures on subsequent performance has not been investigated. Granular activated carbon (GAC) was used to pre-enrich electrotrophic methanogenic communities, as GAC has been shown to stimulate direct transfer of electrons between different microbial species. MEC startup times using pre-acclimated GAC were improved compared to controls (without pre-acclimation or without GAC), and after three fed batch cycles methane generation rates were similar (P > 0.4) for GAC acclimated to hydrogen (22 ± 9.3 nmol cm− 3 d− 1), methanol (25 ± 9.7 nmol cm− 3 d− 1), and a volatile fatty acid (VFA) mix (22 ± 11 nmol cm− 3 d− 1). However, MECs started with GAC but no pre-acclimation had lower methane generation rates (13 ± 4.1 nmol cm− 3 d− 1), and MECs without GAC had the lowest rates (0.7 ± 0.8 nmol cm− 3 d− 1 after cycle 2). Microbes previously found in methanogenic MECs, or previously shown to be capable of exocellular electron transfer, were enriched on the GAC. Pre-acclimation using GAC is therefore a simple approach to enrich electroactive communities, improve methane generation rates, and decrease startup times in MECs. © 2016 Elsevier B.V.
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1567539416301062
dc.subjectBioelectricity
dc.subjectElectrotroph
dc.subjectHydrogen
dc.subjectMethane
dc.titleEffect of pre-acclimation of granular activated carbon on microbial electrolysis cell startup and performance
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalBioelectrochemistry
dc.contributor.institutionDepartment of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA, United States
kaust.personHong, Pei-Ying
dc.date.published-online2016-09-09
dc.date.published-print2017-02


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