Microbial fuel - cell A novel self-powered wastewater electrolyses for electrocoagulation of heavy metals
Microbial fuel - cell A novel self-powered wastewater electrolyses for electrocoagulation of heavy metals
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 formed inside a terracotta based MFC reactor was a product of self-powered wastewater electrolysis utilizing i) wastewater with added sodium acetate as a carbon source and ii) neat urine. The 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 heavy metal solutions.
Microbial fuel cell, Electrolysis, Electro-flocculation, Metal removal, Metal hydroxides
1813-1819
Gajda, I.
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Stinchcombe, A.
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Greenman, J.
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Methuish, C.
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Ieropoulos, Ioannis
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19 January 2017
Gajda, I.
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Stinchcombe, A.
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Greenman, J.
eb3d9b82-7cac-4442-9301-f34884ae4a16
Methuish, C.
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Ieropoulos, Ioannis
6c580270-3e08-430a-9f49-7fbe869daf13
Gajda, I., Stinchcombe, A., Greenman, J., Methuish, C. and Ieropoulos, Ioannis
(2017)
Microbial fuel - cell A novel self-powered wastewater electrolyses for electrocoagulation of heavy metals.
International Journal of Hydrogen Energy, 42 (3), .
(doi:10.1016/j.ijhydene.2016.06.161).
Abstract
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 formed inside a terracotta based MFC reactor was a product of self-powered wastewater electrolysis utilizing i) wastewater with added sodium acetate as a carbon source and ii) neat urine. The 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 heavy metal solutions.
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1-s2.0-S0360319916312642-main
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Published date: 19 January 2017
Keywords:
Microbial fuel cell, Electrolysis, Electro-flocculation, Metal removal, Metal hydroxides
Identifiers
Local EPrints ID: 454041
URI: http://eprints.soton.ac.uk/id/eprint/454041
ISSN: 0360-3199
PURE UUID: 8ed9d56d-98d7-4cee-8eec-7549675930d6
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Date deposited: 27 Jan 2022 19:17
Last modified: 17 Mar 2024 04:10
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Contributors
Author:
I. Gajda
Author:
A. Stinchcombe
Author:
J. Greenman
Author:
C. Methuish
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