Comparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge

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dc.contributor.authorNandy, Arpita
dc.contributor.authorSharma, Mohita
dc.contributor.authorVenkatesan, Senthil Velan
dc.contributor.authorTaylor, Nicole
dc.contributor.authorGieg, Lisa
dc.contributor.authorThangadurai, Venkataraman
dc.date.accessioned2020-02-28T22:21:59Z
dc.date.available2020-02-28T22:21:59Z
dc.date.issued2019-03-16
dc.description.abstractThis study aims to provide insight into the cost-effective catalyst on power generation in a microbial fuel cell (MFC) for treatment of municipal sludge. Power production from MFCs with carbon, Fe2O3, and Pt electrodes were compared. The MFC with no coating on carbon generated the least power density (6.72 mW·m?2) while the MFC with Fe2O3-coating on carbon anodes and carbon cathodes generated a 78% higher power output (30.18 mW·m?2). The third MFC with Fe2O3-coated carbon anodes and Pt on carbon as the cathode catalyst generated the highest power density (73.16 mW·m?2) at room temperature. Although the power generated with a conventional Pt catalyst was more than two-fold higher than Fe2O3, this study suggests that Fe2O3 can be investigated further as an efficient, low-cost, and alternative catalyst of Pt, which can be optimized for improving performance of MFCs. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) results demonstrated reduced resistance of MFCs and better charge transfer between biofilm and electrodes containing coated anodes compared to non-coated anodes. Scanning electron microscopy (SEM) was used to analyze biofilm morphology and microbial community analysis was performed using 16S rRNA gene sequencing, which revealed the presence of known anaerobic fermenters and methanogens that may play a key role in energy generation in the MFCs.
dc.identifier.citationNandy, A., Sharma, M., Venkatesan, S., Taylor, N., Gieg, L., & Thangadurai, V. (2019). Comparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge. Energies, 12(6), 1034. https://doi.org/10.3390/en12061034
dc.identifier.doi10.3390/en12061034
dc.identifier.issn1996-1073
dc.identifier.urihttp://hdl.handle.net/1880/111694
dc.identifier.urihttps://dx.doi.org/10.11575/PRISM/37613
dc.language.isoenen
dc.language.isoeng
dc.publisherMDPI AG
dc.publisher.departmentDepartment of Chemistry
dc.publisher.facultyScienceen
dc.publisher.hasversionpublishedVersion
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.policyhttps://doaj.org/
dc.rightsUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en
dc.rights© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectFe2O3
dc.subjectcatalyst coating
dc.subjectmicrobial fuel cell (MFC)
dc.subjectbioelectrochemistry
dc.subjectpower production
dc.subjectelectro-active biofilms
dc.subjectwastewater treatment
dc.subjectsustainable
dc.titleComparative Evaluation of Coated and Non-Coated Carbon Electrodes in a Microbial Fuel Cell for Treatment of Municipal Sludge
dc.typejournal article
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