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Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions

Wafa Suwaileh, Daniel Johnson Orcid Logo, Nidal Hilal

Desalination, Volume: 456, Pages: 53 - 63

Swansea University Authors: Daniel Johnson Orcid Logo, Nidal Hilal

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DOI (Published version): 10.1016/j.desal.2019.01.014

Abstract

Fertilizer drawn forward osmosis (FDFO) is a cost-effective technology for brackish water desalination. The diluted fertilizer draw solution can be used to supply nutrients to crops instead of separating it from the desalinated water. This work evaluates the performance of the FDFO using four fertil...

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Published in: Desalination
ISSN: 0011-9164
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa48257
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first_indexed 2019-01-16T14:02:01Z
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spelling 2019-09-27T14:50:33.8481002 v2 48257 2019-01-16 Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions 4bdcc306062428d2715b0dd308cc092f 0000-0001-6921-0389 Daniel Johnson Daniel Johnson true false 3acba771241d878c8e35ff464aec0342 Nidal Hilal Nidal Hilal true false 2019-01-16 Fertilizer drawn forward osmosis (FDFO) is a cost-effective technology for brackish water desalination. The diluted fertilizer draw solution can be used to supply nutrients to crops instead of separating it from the desalinated water. This work evaluates the performance of the FDFO using four fertilizer draw solutions with various concentrations (1.0, 1.5, 2.0 mol/L) and a polyamide thin film composite (TFC) FO membrane for brackish water desalination. The results revealed that KCl fertilizer draw solution achieved the highest water flux and adequate reverse salt flux as compared to other fertilizer draw solution. The mixture KCl + KNO3 and KH2PO4 fertilizer draw solution generated the lowest water permeation and reverse salt flux. KH2PO4 draw solute promoted the growth of salt scaling which affected the membrane productivity in terms of water flux. The negatively charge of the membrane surface was responsible for precipitation of salt on the selective layer. This influenced the performance and resulted in low water permeation and minimum loss of nutrients in the fertilizer draw solution. The advantage of FDFO is in not needing a recovery step to reconcentrate the draw solution, instead using diluted draw solution as a supplement to irrigation water via fertigation. Journal Article Desalination 456 53 63 0011-9164 Brackish water desalination, fertilizer drawn forward osmosis system, thin film composite membrane, draw solution, scaling 15 4 2019 2019-04-15 10.1016/j.desal.2019.01.014 COLLEGE NANME COLLEGE CODE Swansea University 2019-09-27T14:50:33.8481002 2019-01-16T06:45:45.3247237 Wafa Suwaileh 1 Daniel Johnson 0000-0001-6921-0389 2 Nidal Hilal 3 0048257-22012019135057.pdf suwaileh2019.pdf 2019-01-22T13:50:57.9670000 Output 1483190 application/pdf Accepted Manuscript true 2020-01-23T00:00:00.0000000 true eng
title Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
spellingShingle Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
Daniel Johnson
Nidal Hilal
title_short Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
title_full Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
title_fullStr Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
title_full_unstemmed Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
title_sort Brackish water desalination for agriculture: Assessing the performance of inorganic fertilizer draw solutions
author_id_str_mv 4bdcc306062428d2715b0dd308cc092f
3acba771241d878c8e35ff464aec0342
author_id_fullname_str_mv 4bdcc306062428d2715b0dd308cc092f_***_Daniel Johnson
3acba771241d878c8e35ff464aec0342_***_Nidal Hilal
author Daniel Johnson
Nidal Hilal
author2 Wafa Suwaileh
Daniel Johnson
Nidal Hilal
format Journal article
container_title Desalination
container_volume 456
container_start_page 53
publishDate 2019
institution Swansea University
issn 0011-9164
doi_str_mv 10.1016/j.desal.2019.01.014
document_store_str 1
active_str 0
description Fertilizer drawn forward osmosis (FDFO) is a cost-effective technology for brackish water desalination. The diluted fertilizer draw solution can be used to supply nutrients to crops instead of separating it from the desalinated water. This work evaluates the performance of the FDFO using four fertilizer draw solutions with various concentrations (1.0, 1.5, 2.0 mol/L) and a polyamide thin film composite (TFC) FO membrane for brackish water desalination. The results revealed that KCl fertilizer draw solution achieved the highest water flux and adequate reverse salt flux as compared to other fertilizer draw solution. The mixture KCl + KNO3 and KH2PO4 fertilizer draw solution generated the lowest water permeation and reverse salt flux. KH2PO4 draw solute promoted the growth of salt scaling which affected the membrane productivity in terms of water flux. The negatively charge of the membrane surface was responsible for precipitation of salt on the selective layer. This influenced the performance and resulted in low water permeation and minimum loss of nutrients in the fertilizer draw solution. The advantage of FDFO is in not needing a recovery step to reconcentrate the draw solution, instead using diluted draw solution as a supplement to irrigation water via fertigation.
published_date 2019-04-15T03:58:37Z
_version_ 1763752980296761344
score 11.036837

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