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Evaluation of esterification and membrane based solvent extraction as methods for the recovery of short chain volatile fatty acids from slaughterhouse blood anaerobic mixed fermentation

Evaluation of esterification and membrane based solvent extraction as methods for the recovery of short chain volatile fatty acids from slaughterhouse blood anaerobic mixed fermentation
Evaluation of esterification and membrane based solvent extraction as methods for the recovery of short chain volatile fatty acids from slaughterhouse blood anaerobic mixed fermentation
Two routes, esterification and membrane based solvent extraction, were tested for their efficiency to extract volatile fatty acids (VFA) (acetic, propionic, butyric, iso-butyric, iso-valeric and valeric acids) produced from the anaerobic-mixed fermentation of slaughterhouse blood. A range of operational parameters and reagents were assessed to optimize each system. Esterification recovered VFA as methyl esters with the production of ammonium sulphate as a value-added by-product of the esterification reaction. A membrane extraction system, comprised of a hydrophobic membrane and extractant using octanol/TOA (trioctylamine), was efficient to separate butyric and iso-valeric acids in favour of acetic acid from the fermentation broth. These results provided important information for the development of a carboxylate-platform bio-refinery using high-protein wastes as substrate.
1877-2641
1767-1777
Plácido, Jersson
ea879e6c-acb1-484c-a44a-655145e70b0a
Zhang, Yue
69b11d32-d555-46e4-a333-88eee4628ae7
Plácido, Jersson
ea879e6c-acb1-484c-a44a-655145e70b0a
Zhang, Yue
69b11d32-d555-46e4-a333-88eee4628ae7

Plácido, Jersson and Zhang, Yue (2018) Evaluation of esterification and membrane based solvent extraction as methods for the recovery of short chain volatile fatty acids from slaughterhouse blood anaerobic mixed fermentation. Waste and Biomass Valorization, 9 (10), 1767-1777. (doi:10.1007/s12649-017-9952-7).

Record type: Article

Abstract

Two routes, esterification and membrane based solvent extraction, were tested for their efficiency to extract volatile fatty acids (VFA) (acetic, propionic, butyric, iso-butyric, iso-valeric and valeric acids) produced from the anaerobic-mixed fermentation of slaughterhouse blood. A range of operational parameters and reagents were assessed to optimize each system. Esterification recovered VFA as methyl esters with the production of ammonium sulphate as a value-added by-product of the esterification reaction. A membrane extraction system, comprised of a hydrophobic membrane and extractant using octanol/TOA (trioctylamine), was efficient to separate butyric and iso-valeric acids in favour of acetic acid from the fermentation broth. These results provided important information for the development of a carboxylate-platform bio-refinery using high-protein wastes as substrate.

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Evaluation of esterification and membrane based solvent extraction for VFA recovery - Accepted Manuscript
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More information

Accepted/In Press date: 6 April 2017
e-pub ahead of print date: 11 May 2017
Published date: 2018
Organisations: Water & Environmental Engineering Group

Identifiers

Local EPrints ID: 408171
URI: https://eprints.soton.ac.uk/id/eprint/408171
ISSN: 1877-2641
PURE UUID: 35ebb1ee-b2d9-4fef-9bc6-47f810e0d933
ORCID for Yue Zhang: ORCID iD orcid.org/0000-0002-5068-2260

Catalogue record

Date deposited: 16 May 2017 04:01
Last modified: 03 Dec 2019 06:06

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