Experimental comparison of submerged membrane distillation configurations for concentrated brine treatment

Choi, Y; Naidu, G; Jeong, S; Vigneswaran, S; Lee, S; Wang, R; Fane, AG

Experimental comparison of submerged membrane distillation configurations for concentrated brine treatment

Choi, Y

Naidu, G

Jeong, S Vigneswaran, S

Lee, S

Wang, R Fane, AG

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Publication Type:: Journal Article
Citation:: Desalination, 2017, 420 pp. 54 - 62
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Choi, Y https://orcid.org/0000-0001-6267-1457	en_US
dc.contributor.author	Naidu, G https://orcid.org/0000-0002-6406-3444	en_US
dc.contributor.author	Jeong, S	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Lee, S https://orcid.org/0000-0002-1407-142X	en_US
dc.contributor.author	Wang, R	en_US
dc.contributor.author	Fane, AG	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Desalination, 2017, 420 pp. 54 - 62	en_US
dc.identifier.issn	0011-9164	en_US
dc.identifier.uri	http://hdl.handle.net/10453/123966
dc.description.abstract	© 2017 Elsevier B.V. Membrane distillation (MD) is an attractive technology for seawater reverse osmosis (SWRO) brine treatment. Submerged MD (S-MD) offers an additional advantage of a compact system compared to cross-flow MD. This study evaluated the performances of three different S-MD configurations; submerged direct contact membrane distillation (S-DCMD), submerged vacuum direct contact membrane distillation (S-VDCMD) and submerged vacuum membrane distillation (S-VMD) for SWRO brine treatment. A 13–77% higher water flux was obtained by S-MDs with vacuum incorporation (S-VMD and S-VDCMD) compared to S-DCMD, attributed to higher driving force. Evaluation on the influence of feed concentration and permeate temperature revealed that S-MD with high vacuum was significantly affected by feed concentration. Meanwhile S-DCMD was more severely affected by feed temperature losses, based on the tendency of membrane pore crystallization formation. The crystallization tendency on the membrane surface was influenced by the presence of vacuum pressure. A repeated cycle of S-DCMD with membrane air-backwashing was effective for flux recovery and to reduce membrane crystallization, enabling to concentrate SWRO brine by 2.8 times of volume concentration factor.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP150101377
dc.relation.ispartof	Desalination	en_US
dc.relation.isbasedon	10.1016/j.desal.2017.06.024	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Experimental comparison of submerged membrane distillation configurations for concentrated brine treatment	en_US
dc.type	Journal Article
utslib.citation.volume	420	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 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	closed_access
pubs.publication-status	Published	en_US
pubs.volume	420	en_US

Abstract:

© 2017 Elsevier B.V. Membrane distillation (MD) is an attractive technology for seawater reverse osmosis (SWRO) brine treatment. Submerged MD (S-MD) offers an additional advantage of a compact system compared to cross-flow MD. This study evaluated the performances of three different S-MD configurations; submerged direct contact membrane distillation (S-DCMD), submerged vacuum direct contact membrane distillation (S-VDCMD) and submerged vacuum membrane distillation (S-VMD) for SWRO brine treatment. A 13–77% higher water flux was obtained by S-MDs with vacuum incorporation (S-VMD and S-VDCMD) compared to S-DCMD, attributed to higher driving force. Evaluation on the influence of feed concentration and permeate temperature revealed that S-MD with high vacuum was significantly affected by feed concentration. Meanwhile S-DCMD was more severely affected by feed temperature losses, based on the tendency of membrane pore crystallization formation. The crystallization tendency on the membrane surface was influenced by the presence of vacuum pressure. A repeated cycle of S-DCMD with membrane air-backwashing was effective for flux recovery and to reduce membrane crystallization, enabling to concentrate SWRO brine by 2.8 times of volume concentration factor.

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http://hdl.handle.net/10453/123966