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Effect of lithium chloride additive on forward osmosis membranes performance

Nawaf Bin Darwish, Abdullah Alkhudhiri, Hamad AlRomaih, Abdulrahman Alalawi, Mark C. Leaper, Nidal Hilal

Journal of Water Process Engineering, Volume: 33, Start page: 101049

Swansea University Author: Nidal Hilal

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DOI (Published version): 10.1016/j.jwpe.2019.101049

Abstract

The research efforts on the development of ideal forward osmosis membranes with high water flux and low reverse salt flux have been devoted in the recent years. In this study, thin film composite polyamide forward osmosis membranes were prepared. The porous polysulfone (PSU), polyphenylsulfone (PPSU...

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Published in: Journal of Water Process Engineering
ISSN: 2214-7144
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa52645
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spelling 2020-11-18T15:45:55.0211910 v2 52645 2019-11-04 Effect of lithium chloride additive on forward osmosis membranes performance 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2019-11-04 FGSEN The research efforts on the development of ideal forward osmosis membranes with high water flux and low reverse salt flux have been devoted in the recent years. In this study, thin film composite polyamide forward osmosis membranes were prepared. The porous polysulfone (PSU), polyphenylsulfone (PPSU), and polyethersulfone (PESU) substrates used in this study were prepared by the phase inversion process, and the active rejection layer was prepared by interfacial polymerization. All the membranes showed highly asymmetric porous structures with a top dense upper layers and finger-like porous substrates with macro voids in the bottom layer. The addition of 3 % lithium chloride (LiCl) to the membrane substrates resulted in an increase in both the water flux and reverse salt flux. PSU and PESU showed the highest water flux when the active layer faced the feed solution (AL-FS), while the largest water flux was obtained when the active layer faced the draw solution (AL-DS). For all the membranes, the water flux under the AL-DS orientation was higher than that under the AL-FS orientation. Journal Article Journal of Water Process Engineering 33 101049 Elsevier BV 2214-7144 Additives, Thin film composite, Interfacial polymerization, Phase inversion, Reverse salt flux 1 2 2020 2020-02-01 10.1016/j.jwpe.2019.101049 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-11-18T15:45:55.0211910 2019-11-04T18:42:30.7898554 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Nawaf Bin Darwish 1 Abdullah Alkhudhiri 2 Hamad AlRomaih 3 Abdulrahman Alalawi 4 Mark C. Leaper 5 Nidal Hilal 6 52645__15795__be7b5288471141afaf71b8693686d007.pdf Revised.pdf 2019-11-06T04:12:38.3541405 Output 1337956 application/pdf Accepted Manuscript true 2020-11-13T00:00:00.0000000 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Effect of lithium chloride additive on forward osmosis membranes performance
spellingShingle Effect of lithium chloride additive on forward osmosis membranes performance
Nidal Hilal
title_short Effect of lithium chloride additive on forward osmosis membranes performance
title_full Effect of lithium chloride additive on forward osmosis membranes performance
title_fullStr Effect of lithium chloride additive on forward osmosis membranes performance
title_full_unstemmed Effect of lithium chloride additive on forward osmosis membranes performance
title_sort Effect of lithium chloride additive on forward osmosis membranes performance
author_id_str_mv 3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Nidal Hilal
author2 Nawaf Bin Darwish
Abdullah Alkhudhiri
Hamad AlRomaih
Abdulrahman Alalawi
Mark C. Leaper
Nidal Hilal
format Journal article
container_title Journal of Water Process Engineering
container_volume 33
container_start_page 101049
publishDate 2020
institution Swansea University
issn 2214-7144
doi_str_mv 10.1016/j.jwpe.2019.101049
publisher Elsevier BV
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 1
active_str 0
description The research efforts on the development of ideal forward osmosis membranes with high water flux and low reverse salt flux have been devoted in the recent years. In this study, thin film composite polyamide forward osmosis membranes were prepared. The porous polysulfone (PSU), polyphenylsulfone (PPSU), and polyethersulfone (PESU) substrates used in this study were prepared by the phase inversion process, and the active rejection layer was prepared by interfacial polymerization. All the membranes showed highly asymmetric porous structures with a top dense upper layers and finger-like porous substrates with macro voids in the bottom layer. The addition of 3 % lithium chloride (LiCl) to the membrane substrates resulted in an increase in both the water flux and reverse salt flux. PSU and PESU showed the highest water flux when the active layer faced the feed solution (AL-FS), while the largest water flux was obtained when the active layer faced the draw solution (AL-DS). For all the membranes, the water flux under the AL-DS orientation was higher than that under the AL-FS orientation.
published_date 2020-02-01T04:05:08Z
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score 11.013731

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