Treating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurations

Handle URI:
http://hdl.handle.net/10754/600083
Title:
Treating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurations
Authors:
Zhang, Fang; Ahn, Yongtae; Logan, Bruce E.
Abstract:
The effectiveness of refinery wastewater (RW) treatment using air-cathode, microbial fuel cells (MFCs) was examined relative to previous tests based on completely anaerobic microbial electrolysis cells (MECs). MFCs were configured with separator electrode assembly (SEA) or spaced electrode (SPA) configurations to measure power production and relative impacts of oxygen crossover on organics removal. The SEA configuration produced a higher maximum power density (280±6mW/m2; 16.3±0.4W/m3) than the SPA arrangement (255±2mW/m2) due to lower internal resistance. Power production in both configurations was lower than that obtained with the domestic wastewater (positive control) due to less favorable (more positive) anode potentials, indicating poorer biodegradability of the RW. MFCs with RW achieved up to 84% total COD removal, 73% soluble COD removal and 92% HBOD removal. These removals were higher than those previously obtained in mini-MEC tests, as oxygen crossover from the cathode enhanced degradation in MFCs compared to MECs. © 2013 Elsevier Ltd.
Citation:
Zhang F, Ahn Y, Logan BE (2014) Treating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurations. Bioresource Technology 152: 46–52. Available: http://dx.doi.org/10.1016/j.biortech.2013.10.103.
Publisher:
Elsevier BV
Journal:
Bioresource Technology
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
Jan-2014
DOI:
10.1016/j.biortech.2013.10.103
PubMed ID:
24275025
Type:
Article
ISSN:
0960-8524
Sponsors:
The authors thank David Jones for help with the analytical measurements, and Lijiao Ren for useful discussions. This research was supported by Chevron, and an Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Fangen
dc.contributor.authorAhn, Yongtaeen
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2016-02-28T06:35:41Zen
dc.date.available2016-02-28T06:35:41Zen
dc.date.issued2014-01en
dc.identifier.citationZhang F, Ahn Y, Logan BE (2014) Treating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurations. Bioresource Technology 152: 46–52. Available: http://dx.doi.org/10.1016/j.biortech.2013.10.103.en
dc.identifier.issn0960-8524en
dc.identifier.pmid24275025en
dc.identifier.doi10.1016/j.biortech.2013.10.103en
dc.identifier.urihttp://hdl.handle.net/10754/600083en
dc.description.abstractThe effectiveness of refinery wastewater (RW) treatment using air-cathode, microbial fuel cells (MFCs) was examined relative to previous tests based on completely anaerobic microbial electrolysis cells (MECs). MFCs were configured with separator electrode assembly (SEA) or spaced electrode (SPA) configurations to measure power production and relative impacts of oxygen crossover on organics removal. The SEA configuration produced a higher maximum power density (280±6mW/m2; 16.3±0.4W/m3) than the SPA arrangement (255±2mW/m2) due to lower internal resistance. Power production in both configurations was lower than that obtained with the domestic wastewater (positive control) due to less favorable (more positive) anode potentials, indicating poorer biodegradability of the RW. MFCs with RW achieved up to 84% total COD removal, 73% soluble COD removal and 92% HBOD removal. These removals were higher than those previously obtained in mini-MEC tests, as oxygen crossover from the cathode enhanced degradation in MFCs compared to MECs. © 2013 Elsevier Ltd.en
dc.description.sponsorshipThe authors thank David Jones for help with the analytical measurements, and Lijiao Ren for useful discussions. This research was supported by Chevron, and an Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectBiodegradabilityen
dc.subjectMicrobial fuel cellsen
dc.subjectRefinery wastewateren
dc.subjectSeparator electrode assemblyen
dc.titleTreating refinery wastewaters in microbial fuel cells using separator electrode assembly or spaced electrode configurationsen
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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