Miniaturised ceramic-based microbial fuel cell for efficient power generation from urine and stack development

Gajda, I., Stinchcombe, A., Merino-Jimenez, I., Pasternak, G., Sanchez-Herranz, D., Greenman, J. and Ieropoulos, I. (2018) Miniaturised ceramic-based microbial fuel cell for efficient power generation from urine and stack development. Frontiers in Energy Research, 6 (84). ISSN 2296-598X Available from: http://eprints.uwe.ac.uk/37329

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Publisher's URL: https://doi.org/10.3389/fenrg.2018.00084

Abstract/Description

One of the challenges in Microbial Fuel Cell (MFC) technology is the improvement of the power output and the lowering of the cost required to scale up the system to achieve usable energy levels for real life applications. This can be achieved by stacking multiple MFC units in modules and using cost effective ceramic as a membrane/chassis for the reactor architecture. The main aim of this work is to increase the power output efficiency of the ceramic based MFCs by compacting the design and exploring the ceramic support as the building block for small scale modular multi-unit systems. The comparison of the power output showed that the small reactors outperform the large MFCs by improving the power density reaching up to 21 mW/m3. This can be related to the increased surface-area-to-volume ratio of the ceramic vessel, which also acts as a membrane with decreased electrode distance. The miniaturised design implemented in 560 MFC unit stack shown an output up to 245 mW of power and it benefits from increased power density that then would allow to utilise the energy locked in the urine more efficiently, making MFCs more applicable in industrial and municipal wastewater treatment facilities, and scale-up-ready for real world implementation.

Item Type:Article
Uncontrolled Keywords:microbial fuel cell, urine, ceramic membrane, stacking, usable power, bioenergy, modular stack
Faculty/Department:Faculty of Environment and Technology > Department of Engineering Design and Mathematics
ID Code:37329
Deposited By: Dr I. Gajda
Deposited On:06 Aug 2018 16:03
Last Modified:13 Oct 2018 16:49

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