Microbial fuel cell - a novel self-powered wastewater electrolyser for electrocoagulation of heavy metals

Gajda, I., Stinchcombe, A., Greenman, J., Melhuish, C. and Ieropoulos, I. (2017) Microbial fuel cell - a novel self-powered wastewater electrolyser for electrocoagulation of heavy metals. International Journal of Hydrogen Energy, 42 (3). pp. 1813-1819. ISSN 0360-3199 Available from: http://eprints.uwe.ac.uk/29180

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Publisher's URL: http://dx.doi.org/10.1016/j.ijhydene.2016.06.161

Abstract/Description

This paper describes the suitability of the Microbial Fuel Cell (MFC) for generation of electrical power with a simultaneous synthesis of active catholyte in the form of caustic solution. The active solution was a product of self-powered wastewater electrolysis inside a terracotta based MFC reactor, utilizing i) wastewater with a sodium acetate as a carbon source and ii) neat urine. Catholyte solution that has been actively synthesized was harvested and used for precipitation of heavy metals such as: iron, copper and zinc showing its suitability for use in electro-coagulation (electro-flocculation).This proposed alternative approach to self-powered electrocoagulation is based on electrochemically formed caustic catholyte within the inner cathode chamber of the MFC and then used ex situ to form metal hydroxides that precipitate out from a heavy metal solution.

Item Type:Article
Uncontrolled Keywords:microbial fuel cell, electrolysis, electro-flocculation, metal removal, metal hydroxides
Faculty/Department:Faculty of Environment and Technology > Department of Engineering Design and Mathematics
ID Code:29180
Deposited By: I. Gajda
Deposited On:20 Jun 2016 11:05
Last Modified:04 Apr 2017 05:58

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