Submerged microfiltration coupled with physcio-chemical processes as pretreatment to sea water desalination

Zhang, R; Khorshed, C; Vigneswaran, S; Kandasamy, J

Submerged microfiltration coupled with physcio-chemical processes as pretreatment to sea water desalination

Zhang, R Khorshed, C Vigneswaran, S

Kandasamy, J

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Publication Type:: Journal Article
Citation:: Desalination and Water Treatment, 2009, 11 (1-3), pp. 52 - 57
Issue Date:: 2009-01-01

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Field	Value	Language
dc.contributor.author	Zhang, R	en_US
dc.contributor.author	Khorshed, C	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.date.issued	2009-01-01	en_US
dc.identifier.citation	Desalination and Water Treatment, 2009, 11 (1-3), pp. 52 - 57	en_US
dc.identifier.issn	1944-3994	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9241
dc.description.abstract	In this study, the critical flux of the submerged membrane system was experimentally evaluated when it was used for seawater with and without pre-treatment. In this study, different processes such as flocculation with ferric chloride (FeCl3) and different doses of PAC adsorption were used as a pre-treatment. The pretreatment of flocculant of 2 mg/L of FeCl3 and adsorption with the dose of 1 g/L PAC showed an improvement in the critical flux from 5 L/m2.h to 6.7 L/m2.h and 13.3 L/m2.h respectively. The performance of these pretreatments was also determined in terms of modified fouling index using ultrafilter membrane (UF-MFI). UF-MFI and SDI indicated that PAC adsorption was a better pretreatment than flocculation for the seawater used in this study. Molecular weight distribution (MWD) of seawater organic matter was also examined after different pretreatments. MWD of the raw seawater was mainly in the range from 1510 to 130 Da. It is observed that FeCl3 flocculation and PAC adsorption as pretreatments partially removed the organic matter of 1510 Da and 130Da respectively. © 2009 Desalination Publications.	en_US
dc.relation.ispartof	Desalination and Water Treatment	en_US
dc.relation.isbasedon	10.5004/dwt.2009.842	en_US
dc.title	Submerged microfiltration coupled with physcio-chemical processes as pretreatment to sea water desalination	en_US
dc.type	Journal Article
utslib.citation.volume	1-3	en_US
utslib.citation.volume	11	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0905 Civil 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/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access
pubs.issue	1-3	en_US
pubs.publication-status	Published	en_US
pubs.volume	11	en_US

Abstract:

In this study, the critical flux of the submerged membrane system was experimentally evaluated when it was used for seawater with and without pre-treatment. In this study, different processes such as flocculation with ferric chloride (FeCl3) and different doses of PAC adsorption were used as a pre-treatment. The pretreatment of flocculant of 2 mg/L of FeCl3 and adsorption with the dose of 1 g/L PAC showed an improvement in the critical flux from 5 L/m2.h to 6.7 L/m2.h and 13.3 L/m2.h respectively. The performance of these pretreatments was also determined in terms of modified fouling index using ultrafilter membrane (UF-MFI). UF-MFI and SDI indicated that PAC adsorption was a better pretreatment than flocculation for the seawater used in this study. Molecular weight distribution (MWD) of seawater organic matter was also examined after different pretreatments. MWD of the raw seawater was mainly in the range from 1510 to 130 Da. It is observed that FeCl3 flocculation and PAC adsorption as pretreatments partially removed the organic matter of 1510 Da and 130Da respectively. © 2009 Desalination Publications.

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http://hdl.handle.net/10453/9241