Journal article
Ammonium as a sustainable proton shuttle in bioelectrochemical systems
Bioresource Technology, Vol.102(20), pp.9691-9696
2011
Abstract
This work examines a pH control method using ammonium (NH4+) as a sustainable proton shuttle in a CEM-equipped BES. Current generation was sustained by adding NH3 or ammonium hydroxide (NH4OH) to the anolyte, controlling its pH at 7. Ammonium ion migration maintained the catholyte pH at approximately 9.25. Such NH4+/NH3 migration accounted for 90±10% of the ionic flux in the BES. Reintroducing the volatilized NH3 from the cathode into the anolyte maintained a suitable anolyte pH for sustained microbial-driven current generation. Hence, NH4+/NH3 acted as a proton shuttle that is not consumed in the process.
Details
- Title
- Ammonium as a sustainable proton shuttle in bioelectrochemical systems
- Authors/Creators
- R. Cord-Ruwisch (Author/Creator) - Murdoch UniversityY. Law (Author/Creator) - Murdoch UniversityK.Y. Cheng (Author/Creator) - CSIRO Land and Water
- Publication Details
- Bioresource Technology, Vol.102(20), pp.9691-9696
- Publisher
- Elsevier BV
- Identifiers
- 991005540103807891
- Copyright
- © 2011 Elsevier Ltd.
- Murdoch Affiliation
- School of Biological Sciences and Biotechnology
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.83 Bioengineering
- 3.83.1487 Microbial Fuel Cell
- Web Of Science research areas
- Agricultural Engineering
- Biotechnology & Applied Microbiology
- Energy & Fuels
- ESI research areas
- Biology & Biochemistry