title: Simultaneous electricity generation and microbially-assisted electrosynthesis in ceramic MFCs.
abstract: 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 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.
authors: Bristol BioEnergy Centre, Bristol Robotics Laboratory, Block T, UWE, Bristol, Coldharbour Lane, Bristol BS16 1QY, UK.
authors: Iwona
authors: I
authors: Gajda
authors: Bristol BioEnergy Centre, Bristol Robotics Laboratory, Block T, UWE, Bristol, Coldharbour Lane, Bristol BS16 1QY, UK; Health and Applied Sciences, UWE, Bristol, Coldharbour Lane, Bristol BS16 1QY, UK.
authors: John
authors: J
authors: Greenman
authors: Bristol BioEnergy Centre, Bristol Robotics Laboratory, Block T, UWE, Bristol, Coldharbour Lane, Bristol BS16 1QY, UK.
authors: Chris
authors: C
authors: Melhuish
authors: Bristol BioEnergy Centre, Bristol Robotics Laboratory, Block T, UWE, Bristol, Coldharbour Lane, Bristol BS16 1QY, UK; Health and Applied Sciences, UWE, Bristol, Coldharbour Lane, Bristol BS16 1QY, UK. Electronic address: ioannis.ieropoulos@brl.ac.uk.
authors: Ioannis
authors: I
authors: Ieropoulos
mesh_terms: D001674:Bioelectric Energy Sources / Q000382:microbiology*; D002244:Carbon / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry*; D003956:Dialysis; D004560:Electricity; D004563:Electrochemistry; D004566:Electrodes; D004867:Equipment Design; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; D002244:Carbon
keywords: Catholyte generation; Microbially assisted electrosynthesis; Terracotta MFC; Water recovery; Wet scrubbing