Simultaneous electricity generation and microbially-assisted electrosynthesis in ceramic MFCs

Gajda, I., Greenman, J., Melhuish, C. and Ieropoulos, I. (2015) Simultaneous electricity generation and microbially-assisted electrosynthesis in ceramic MFCs. Bioelectrochemistry, 104. pp. 58-64. ISSN 1567-5394 Available from: http://eprints.uwe.ac.uk/25267

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Abstract/Description

To date, the development of microbially assisted synthesis in Bioelectrochemical Systems (BES) has focused on mechanisms that consume energy in order to drive the electrosynthesis process. This work reports - for the first time - 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 7 day 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.

Item Type:Article
Additional Information:Article available online 18 March 2015.
Uncontrolled Keywords:terracotta MFC, wet scrubbing, catholyte generation, water recovery, microbially assisted electrosynthesis
Faculty/Department:Faculty of Environment and Technology > Department of Computer Science and Creative Technologies
ID Code:25267
Deposited By: I. Gajda
Deposited On:24 Mar 2015 13:04
Last Modified:20 Jul 2016 05:51

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