Continuous recovery and enhanced yields of volatile fatty acids from a continually-fed 100 L food waste bioreactor by filtration and electrodialysis
Abstract
A novel method to recover VFAs from a continually-fed 100 L food waste bioreactor was developed using industrially applicable methods. The in-situ recovery of VFAs increased production rates from 4 to 35 mg vfa g vs-1 day-1 by alleviating end-product inhibition and arresting methanogenesis, and electrodialysis was able to concentrate the recovered VFAs to 4000 mg L-1. There remains considerable scope to increase the production rates and concentrations further, and the VFAs were recovered in a form that made them suitable for use as platform chemicals with minimal refining. This is the first time that continuous VFA recovery from real-world food waste has been reported at this scale with continual feeding, and represents a promising means through which to produce sustainable platform chemicals. Furthermore the production of VFAs arrests methane production in bioreactors, which is a low value product around which there is a growing concern about fugitive emissions contributing to climate change.
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VFAs filtration inhibits methanogenesis of food waste in the bioreactor.
“VFAs filtration inhibits methanogenesis of food waste in the bioreactor [88].”
From Food Waste Biorefinery: Pathway towards Circular Bioeconomy (2021) · cites this paper as [88]
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Food Waste Biorefinery: Pathway towards Circular Bioeconomy
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- Authors
- Jones, R. J., Fernández-Feito, R., Massanet-Nicolau, J., Dinsdale, R., & Guwy, A.
- Affiliations
- University of South Wales (GB)
- Corresponding author
- Jones, Rhys Jon
- Venue
- Waste Management
- Publisher
- Elsevier BV
- Published
- 2021-03
- Volume
- 122
- Pages
- 81-88
- ISSN
- 0956-053X (ISSN-L)
- OpenAlex
- W3124290022
- Cited by
- 54
- References
- 27
- Citations by year
- 2026: 9 · 2025: 9 · 2024: 8 · 2023: 5 · 2022: 11 · 2021: 12
- FWCI
- 4.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Waste Management (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Horizon 2020
- Topics
- Physical Sciences › Engineering › Building and Construction › Anaerobic Digestion and Biogas Production
- Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Keywords
- volatile fatty acids, electrodialysis, filtration, product inhibition, methanogenesis inhibition, methane mitigation, platform chemicals, anaerobic digestion
- MeSH terms
- Anaerobiosis, Fatty Acids, Volatile, Fermentation, Food, Methane, Refuse Disposal, Bioreactors
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