Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 44, Issue 29, Pages 14715-14720Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.04.176
Keywords
Food waste; Hydrogen; Volatile fatty acids; Separation; Electrodialysis
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Funding
- British Council
- Ministry of Higher Education (MoHE) of Egypt (Newton-Mosharaffa Fund)
- FLEXIS research project [WEFO 80835]
- Resurbis research project [730349]
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The impact of continuous removal of volatile fatty acids on fermentative hydrogen production from food waste (FW) in a Continuously Stirred Tank Reactor (CSTR) was evaluated. Two experimental phases were conducted, a control phase and one in which volatile fatty acids were removed continuously from the reactor for the first time by electrodialysis (ED). Hydrogen yields were 64.7 cm(3) H-2/g VS and 227.3 cm(3) H-2/g VS for control phase, and ED phase respectively. Continuous removal of volatile fatty acids during fermentation not only increased H-2 yields but increased the production of volatile fatty acids (a valuable chemical feedstock) from 0.14 g/g VS to 0.34 g/g VS. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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