Evaluation of ultrafiltration and multimedia filtration as pretreatmeprocess for forward osmosis

Hawari, AH; Hafiz, M; Yasir, AT; Alfahel, R; Altaee, A

Evaluation of ultrafiltration and multimedia filtration as pretreatmeprocess for forward osmosis

Hawari, AH Hafiz, M Yasir, AT Alfahel, R Altaee, A

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Publisher:: Desalination Publications
Publication Type:: Journal Article
Citation:: Desalination and Water Treatment, 2020, 196, pp. 84-92
Issue Date:: 2020-08-01

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Field	Value	Language
dc.contributor.author	Hawari, AH
dc.contributor.author	Hafiz, M
dc.contributor.author	Yasir, AT
dc.contributor.author	Alfahel, R
dc.contributor.author	Altaee, A https://orcid.org/0000-0001-9764-3974
dc.date.accessioned	2021-03-10T09:58:06Z
dc.date.available	2021-03-10T09:58:06Z
dc.date.issued	2020-08-01
dc.identifier.citation	Desalination and Water Treatment, 2020, 196, pp. 84-92
dc.identifier.issn	1944-3994
dc.identifier.issn	1944-3986
dc.identifier.uri	http://hdl.handle.net/10453/146996
dc.description.abstract	© 2020 Desalination Publications. All rights reserved. In order to reduce scaling in a multistage flash (MSF) desalination plant, the brine reject can be diluted using forward osmosis (FO) before recycling. In this FO process, the brine is used as the draw solution (DS) and seawater is used as the feed solution (FS). However, the FO process suffers from low water flux owing to membrane fouling. The water flux in FO can be enhanced by reduc-ing the foulant concentration in the FO feed solution (FS). Thus, in this paper seawater, multimedia sand filtered seawater, and ultrafiltrated seawater is being used as feed solution for the FO process. The flowrate of the feed solution was kept constant at 2.0 L/min. However, the flowrate of the draw solution (DS) were tested at 2.0 and 0.8 L/min. When the flowrate of the DS was 0.8 L/min, the highest initial flux of 44.1 L/m2 h were obtained using ultrafiltrated seawater as FS. After the initial run, the membrane was cleaned and during the second run, 83% of the initial flux was recovered using the ultrafiltrated seawater as FS. For ultrafiltrated seawater, the water recovery rate and specific energy consumption was 36.2% and 0.065 kWh/m3, respectively.
dc.language	en
dc.publisher	Desalination Publications
dc.relation.ispartof	Desalination and Water Treatment
dc.relation.isbasedon	10.5004/dwt.2020.25941
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0905 Civil Engineering, 0907 Environmental Engineering
dc.title	Evaluation of ultrafiltration and multimedia filtration as pretreatmeprocess for forward osmosis
dc.type	Journal Article
utslib.citation.volume	196
utslib.for	0904 Chemical Engineering
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2021-03-10T09:58:03Z
pubs.publication-status	Published
pubs.volume	196

Abstract:

© 2020 Desalination Publications. All rights reserved. In order to reduce scaling in a multistage flash (MSF) desalination plant, the brine reject can be diluted using forward osmosis (FO) before recycling. In this FO process, the brine is used as the draw solution (DS) and seawater is used as the feed solution (FS). However, the FO process suffers from low water flux owing to membrane fouling. The water flux in FO can be enhanced by reduc-ing the foulant concentration in the FO feed solution (FS). Thus, in this paper seawater, multimedia sand filtered seawater, and ultrafiltrated seawater is being used as feed solution for the FO process. The flowrate of the feed solution was kept constant at 2.0 L/min. However, the flowrate of the draw solution (DS) were tested at 2.0 and 0.8 L/min. When the flowrate of the DS was 0.8 L/min, the highest initial flux of 44.1 L/m2 h were obtained using ultrafiltrated seawater as FS. After the initial run, the membrane was cleaned and during the second run, 83% of the initial flux was recovered using the ultrafiltrated seawater as FS. For ultrafiltrated seawater, the water recovery rate and specific energy consumption was 36.2% and 0.065 kWh/m3, respectively.

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http://hdl.handle.net/10453/146996