Solvent-free membrane extraction of volatile fatty acids from acidogenic fermentation
Outram, Victoria LU
and Zhang, Yue
(2018)
In Bioresource Technology
270.
p.400-408
- Abstract
Diversification of anaerobic digestion into higher value products, namely volatile fatty acids (VFAs), is receiving interest. One of the biggest challenges with this is recovery of the VFAs. Membrane extraction can be used, and a novel process configuration using a non-porous silicone membrane and water for an extractant is proposed here. This process would enable the reduction in the number of downstream unit operations compared to other membrane extraction processes. Selective recovery in favour of longer chain VFAs was demonstrated. Testing with a synthetic solution resulted in an overall mass transfer coefficient of 0.088 μm s −1 for... (More)
Diversification of anaerobic digestion into higher value products, namely volatile fatty acids (VFAs), is receiving interest. One of the biggest challenges with this is recovery of the VFAs. Membrane extraction can be used, and a novel process configuration using a non-porous silicone membrane and water for an extractant is proposed here. This process would enable the reduction in the number of downstream unit operations compared to other membrane extraction processes. Selective recovery in favour of longer chain VFAs was demonstrated. Testing with a synthetic solution resulted in an overall mass transfer coefficient of 0.088 μm s −1 for butyric acid, and 0.157 μm s −1 when fermentation broth was used. This indicates this process is not hindered by fouling, but improved somehow. Although the preliminary economic analysis showed this process to require a larger membrane area compared to porous membrane alternatives, it also has a significantly reduced cost associated with the extractant.
(Less)
- author
- Outram, Victoria
LU
and Zhang, Yue
- publishing date
- 2018-12
- type
- Contribution to journal
- publication status
- published
- keywords
- Acidogenic fermentation, In situ product recovery, Membrane extraction, Volatile fatty acids
- in
- Bioresource Technology
- volume
- 270
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- pmid:30245308
- scopus:85053850877
- ISSN
- 0960-8524
- DOI
- 10.1016/j.biortech.2018.09.057
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2018 Elsevier Ltd
- id
- f699eb55-214b-481b-b0e6-7acd4882cf28
- date added to LUP
- 2023-05-04 14:17:22
- date last changed
- 2024-05-18 00:49:45
@article{f699eb55-214b-481b-b0e6-7acd4882cf28,
abstract = {{<p> Diversification of anaerobic digestion into higher value products, namely volatile fatty acids (VFAs), is receiving interest. One of the biggest challenges with this is recovery of the VFAs. Membrane extraction can be used, and a novel process configuration using a non-porous silicone membrane and water for an extractant is proposed here. This process would enable the reduction in the number of downstream unit operations compared to other membrane extraction processes. Selective recovery in favour of longer chain VFAs was demonstrated. Testing with a synthetic solution resulted in an overall mass transfer coefficient of 0.088 μm s <sup>−1</sup> for butyric acid, and 0.157 μm s <sup>−1</sup> when fermentation broth was used. This indicates this process is not hindered by fouling, but improved somehow. Although the preliminary economic analysis showed this process to require a larger membrane area compared to porous membrane alternatives, it also has a significantly reduced cost associated with the extractant.</p>}},
author = {{Outram, Victoria and Zhang, Yue}},
issn = {{0960-8524}},
keywords = {{Acidogenic fermentation; In situ product recovery; Membrane extraction; Volatile fatty acids}},
language = {{eng}},
pages = {{400--408}},
publisher = {{Elsevier}},
series = {{Bioresource Technology}},
title = {{Solvent-free membrane extraction of volatile fatty acids from acidogenic fermentation}},
url = {{http://dx.doi.org/10.1016/j.biortech.2018.09.057}},
doi = {{10.1016/j.biortech.2018.09.057}},
volume = {{270}},
year = {{2018}},
}