Understanding the risk of scaling and fouling in hollow fiber forward osmosis membrane application

Majeed, T; Phuntsho, S; Jeong, S; Zhao, Y; Gao, B; Shon, HK

Understanding the risk of scaling and fouling in hollow fiber forward osmosis membrane application

Majeed, T Phuntsho, S

Jeong, S Zhao, Y Gao, B Shon, HK

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Publication Type:: Journal Article
Citation:: Process Safety and Environmental Protection, 2016, 104 pp. 452 - 464
Issue Date:: 2016-11-01

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Field	Value	Language
dc.contributor.author	Majeed, T	en_US
dc.contributor.author	Phuntsho, S https://orcid.org/0000-0002-3917-3916	en_US
dc.contributor.author	Jeong, S	en_US
dc.contributor.author	Zhao, Y	en_US
dc.contributor.author	Gao, B	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.date.available	2020-05-25T19:14:27Z
dc.date.issued	2016-11-01	en_US
dc.identifier.citation	Process Safety and Environmental Protection, 2016, 104 pp. 452 - 464	en_US
dc.identifier.issn	0957-5820	en_US
dc.identifier.uri	http://hdl.handle.net/10453/69648
dc.description.abstract	© 2016 Institution of Chemical Engineers Fouling studies of forward osmosis (FO) were mostly conducted based on fouling evaluation principals applied to pressure membrane processes such as reverse osmosis (RO)/nanofiltration (NF)/microfiltration (MF)/ultrafiltration (UF). For RO/NF/MF/UF processes, the single flux driving force (hydraulic pressure) remains constant, thus the fouling effect is easily evaluated by comparing flux data with the baseline. Whilst, the scenario of fouling effects for FO process is entirely different from RO/NF/MF/UF processes. Continuously changing driving force (osmotic pressure difference), the changes in concentration polarization associated with the varying draw solution/feed solution concentration and the fouling layer effects collectively influence the FO flux. Thus, usual comparison of the FO flux outcome with the baseline results cannot exactly indicate the real affect of membrane fouling, rather presents a misleading cumulative effect. This study compares the existing FO fouling technique with an alternate fouling evaluation approach using two FO set-ups. Scaling and fouling risk for hollow fiber FO was separately investigated using synthetic water samples and model organic foulants as alginate, humic acid and bovine serum albumin. Results indicated that FO flux declines up to 5% and 49% in active layer-feed solution and active layer-draw solution orientations respectively.	en_US
dc.relation.ispartof	Process Safety and Environmental Protection	en_US
dc.relation.isbasedon	10.1016/j.psep.2016.06.023	en_US
dc.subject.classification	Strategic, Defence & Security Studies	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Understanding the risk of scaling and fouling in hollow fiber forward osmosis membrane application	en_US
dc.type	Journal Article
utslib.citation.volume	104	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
utslib.for	0102 Applied Mathematics	en_US
utslib.for	0911 Maritime Engineering	en_US
pubs.embargo.period	Not known	en_US
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	open_access
pubs.publication-status	Published	en_US
pubs.volume	104	en_US

Abstract:

© 2016 Institution of Chemical Engineers Fouling studies of forward osmosis (FO) were mostly conducted based on fouling evaluation principals applied to pressure membrane processes such as reverse osmosis (RO)/nanofiltration (NF)/microfiltration (MF)/ultrafiltration (UF). For RO/NF/MF/UF processes, the single flux driving force (hydraulic pressure) remains constant, thus the fouling effect is easily evaluated by comparing flux data with the baseline. Whilst, the scenario of fouling effects for FO process is entirely different from RO/NF/MF/UF processes. Continuously changing driving force (osmotic pressure difference), the changes in concentration polarization associated with the varying draw solution/feed solution concentration and the fouling layer effects collectively influence the FO flux. Thus, usual comparison of the FO flux outcome with the baseline results cannot exactly indicate the real affect of membrane fouling, rather presents a misleading cumulative effect. This study compares the existing FO fouling technique with an alternate fouling evaluation approach using two FO set-ups. Scaling and fouling risk for hollow fiber FO was separately investigated using synthetic water samples and model organic foulants as alginate, humic acid and bovine serum albumin. Results indicated that FO flux declines up to 5% and 49% in active layer-feed solution and active layer-draw solution orientations respectively.

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http://hdl.handle.net/10453/69648