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Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids

Myrto-panagiota Zacharof, Stephen J. Mandale, Paul Williams Orcid Logo, Robert Lovitt

Journal of Cleaner Production, Volume: 112, Pages: 4749 - 4761

Swansea University Authors: Myrto-panagiota Zacharof, Paul Williams Orcid Logo, Robert Lovitt

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DOI (Published version): 10.1016/j.jclepro.2015.07.004

Abstract

Synthetic solutions of varying concentrations of carboxylic acids, namely acetic and butyric acids (50 mM, 100 mM) and treated digested agricultural wastewater with a carboxylic acids concentration of 21.08 mM of acetic acid and 15.81 mM of butyric acid were processed with a range of nanofiltration...

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Published in: Journal of Cleaner Production
ISSN: 0959-6526
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa28826
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first_indexed 2016-06-10T18:26:37Z
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spelling 2017-07-11T14:56:32.5753963 v2 28826 2016-06-10 Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids 58dbbe00d55ca29ad8b9fb78ba86fe46 Myrto-panagiota Zacharof Myrto-panagiota Zacharof true false 3ed8f1e5d997e0fcb256fb6501605cec 0000-0003-0511-4659 Paul Williams Paul Williams true false 130c3c35f45826bb0f4836305e8e51c7 Robert Lovitt Robert Lovitt true false 2016-06-10 Synthetic solutions of varying concentrations of carboxylic acids, namely acetic and butyric acids (50 mM, 100 mM) and treated digested agricultural wastewater with a carboxylic acids concentration of 21.08 mM of acetic acid and 15.81 mM of butyric acid were processed with a range of nanofiltration membranes and enrichment schemes to concentrate carboxylic acids. The study was conducted with the scope of platform chemicals recovery from complex effluents, investigating the feasibility of nanofiltration as a method of choice. Membrane filtration is easily scalable into various arrangements, allowing versatility in operation and enrichment treatments, which other recovery practices such as liquid extraction do not allow. Among the five nanofiltration membranes used (NF270 (Dow Chemicals, USA), HL, DL, DK (Osmonics, USA), LF10 (Nitto Denko, Japan)) the DK, DL and NF270 were identified as the best candidates for carboxylic acids separation and concentration from these complex effluents, both in terms of retention and permeate flux. These membranes achieved retention ratios, up to 75% giving retentates up to 53.94 mM acetate and 28.38 mM butyrate for the agricultural wastewater. Effluents were modified by the addition of alkali and salts (sodium chloride and sodium bicarbonate), and it was found that highest productivity, retention and flux was achieved at pH 7 but at higher pH there was a significant reduction in flux. Journal Article Journal of Cleaner Production 112 4749 4761 0959-6526 20 1 2016 2016-01-20 10.1016/j.jclepro.2015.07.004 COLLEGE NANME COLLEGE CODE Swansea University 2017-07-11T14:56:32.5753963 2016-06-10T15:34:15.1327665 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Myrto-panagiota Zacharof 1 Stephen J. Mandale 2 Paul Williams 0000-0003-0511-4659 3 Robert Lovitt 4
title Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
spellingShingle Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
Myrto-panagiota Zacharof
Paul Williams
Robert Lovitt
title_short Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
title_full Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
title_fullStr Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
title_full_unstemmed Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
title_sort Nanofiltration of treated digested agricultural wastewater for recovery of carboxylic acids
author_id_str_mv 58dbbe00d55ca29ad8b9fb78ba86fe46
3ed8f1e5d997e0fcb256fb6501605cec
130c3c35f45826bb0f4836305e8e51c7
author_id_fullname_str_mv 58dbbe00d55ca29ad8b9fb78ba86fe46_***_Myrto-panagiota Zacharof
3ed8f1e5d997e0fcb256fb6501605cec_***_Paul Williams
130c3c35f45826bb0f4836305e8e51c7_***_Robert Lovitt
author Myrto-panagiota Zacharof
Paul Williams
Robert Lovitt
author2 Myrto-panagiota Zacharof
Stephen J. Mandale
Paul Williams
Robert Lovitt
format Journal article
container_title Journal of Cleaner Production
container_volume 112
container_start_page 4749
publishDate 2016
institution Swansea University
issn 0959-6526
doi_str_mv 10.1016/j.jclepro.2015.07.004
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description Synthetic solutions of varying concentrations of carboxylic acids, namely acetic and butyric acids (50 mM, 100 mM) and treated digested agricultural wastewater with a carboxylic acids concentration of 21.08 mM of acetic acid and 15.81 mM of butyric acid were processed with a range of nanofiltration membranes and enrichment schemes to concentrate carboxylic acids. The study was conducted with the scope of platform chemicals recovery from complex effluents, investigating the feasibility of nanofiltration as a method of choice. Membrane filtration is easily scalable into various arrangements, allowing versatility in operation and enrichment treatments, which other recovery practices such as liquid extraction do not allow. Among the five nanofiltration membranes used (NF270 (Dow Chemicals, USA), HL, DL, DK (Osmonics, USA), LF10 (Nitto Denko, Japan)) the DK, DL and NF270 were identified as the best candidates for carboxylic acids separation and concentration from these complex effluents, both in terms of retention and permeate flux. These membranes achieved retention ratios, up to 75% giving retentates up to 53.94 mM acetate and 28.38 mM butyrate for the agricultural wastewater. Effluents were modified by the addition of alkali and salts (sodium chloride and sodium bicarbonate), and it was found that highest productivity, retention and flux was achieved at pH 7 but at higher pH there was a significant reduction in flux.
published_date 2016-01-20T03:35:11Z
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score 11.013686

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