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Simultaneous electricity generation and microbially-assisted electrosynthesis in ceramic MFCs

Gajda, Iwona; Greenman, John; Melhuish, Chris; Ieropoulos, Ioannis

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Authors

Iwona Serruys Iwona.Gajda@uwe.ac.uk
Senior Lecturer in Engineering Management

Chris Melhuish Chris.Melhuish@uwe.ac.uk
Professor of Robotics & Autonomous Systems

Yannis Ieropoulos Ioannis2.Ieropoulos@uwe.ac.uk
Professor in Bioenergy & Director of B-B



Abstract

© 2015 Elsevier B.V. To date, the development of microbially assisted synthesis in Bioelectrochemical Systems (BESs) has focused on mechanisms that consume energy in order to drive the electrosynthesis process. This work reports - for the first time - on novel ceramic MFC systems that generate electricity whilst simultaneously driving the electrosynthesis of useful chemical products. A novel, inexpensive and low maintenance MFC demonstrated electrical power production and implementation into a practical application. Terracotta based tubular MFCs were able to produce sufficient power to operate an LED continuously over a 7day period with a concomitant 92% COD reduction. Whilst the MFCs were generating energy, an alkaline solution was produced on the cathode that was directly related to the amount of power generated. The alkaline catholyte was able to fix CO2 into carbonate/bicarbonate salts. This approach implies carbon capture and storage (CCS), effectively capturing CO2 through wet caustic 'scrubbing' on the cathode, which ultimately locks carbon dioxide.

Citation

Gajda, I., Greenman, J., Melhuish, C., & Ieropoulos, I. (2015). Simultaneous electricity generation and microbially-assisted electrosynthesis in ceramic MFCs. Bioelectrochemistry, 104, 58-64. https://doi.org/10.1016/j.bioelechem.2015.03.001

Journal Article Type Article
Publication Date Aug 1, 2015
Deposit Date Mar 24, 2015
Publicly Available Date Mar 18, 2016
Journal Bioelectrochemistry
Print ISSN 1567-5394
Electronic ISSN 1878-562X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 104
Pages 58-64
DOI https://doi.org/10.1016/j.bioelechem.2015.03.001
Keywords terracotta MFC, wet scrubbing, catholyte generation, water recovery, microbially assisted electrosynthesis
Public URL https://uwe-repository.worktribe.com/output/830398
Publisher URL http://www.sciencedirect.com/science/article/pii/S1567539415000250
Additional Information Additional Information : Article available online 18 March 2015.

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