Assessment of pretreatment to microfiltration for desalination in terms of fouling index and molecular weight distribution

Chinu, K; Johir, AH; Vigneswaran, S; Shon, HK; Kandasamy, J

Assessment of pretreatment to microfiltration for desalination in terms of fouling index and molecular weight distribution

Chinu, K Johir, AH

Vigneswaran, S

Shon, HK

Kandasamy, J

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Publication Type:: Journal Article
Citation:: Desalination, 2010, 250 (2), pp. 644 - 647
Issue Date:: 2010-01-15

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Field	Value	Language
dc.contributor.author	Chinu, K	en_US
dc.contributor.author	Johir, AH https://orcid.org/0000-0001-6222-6943	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.contributor.author	Shon, HK https://orcid.org/0000-0002-3777-7169	en_US
dc.contributor.author	Kandasamy, J	en_US
dc.date.issued	2010-01-15	en_US
dc.identifier.citation	Desalination, 2010, 250 (2), pp. 644 - 647	en_US
dc.identifier.issn	0011-9164	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9204
dc.description.abstract	In this study, different processes such as flocculation with ferric chloride (FeCl3) and deep bed filtration (sand filtration and dual media filtration) as a pre-treatment to microfiltration (MF) were used for seawater desalination. The performance of these pre-treatments was determined in terms of silt density index (SDI) and modified fouling index (MFI) and flux decline in MF. Flux decline of MF with seawater was 45% without any pre-treatment, 42% after pre-treatment of FeCl3 flocculation, 24% after pre-treatment of sand filtration with in-line coagulation and 22% after pre-treatment of dual media filtration (sand and anthracite), respectively. MFI and SDI also indicated that deep bed filtration with in-line flocculation was better pre-treatment than flocculation alone. Detailed molecular weight distribution (MWD) of seawater organic matter was examined after different pretreatments. MWD of the initial seawater mainly ranged from 1510 Da to 130 Da. Deep bed filtration with in-line flocculation removed relatively large molecular weight of organic matter (1510-1180 Da), while the small molecular weights (less than 530 Da) were not removed. © 2009 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Desalination	en_US
dc.relation.isbasedon	10.1016/j.desal.2009.09.041	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Assessment of pretreatment to microfiltration for desalination in terms of fouling index and molecular weight distribution	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	250	en_US
utslib.for	0915 Interdisciplinary 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	open_access
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	250	en_US

Abstract:

In this study, different processes such as flocculation with ferric chloride (FeCl3) and deep bed filtration (sand filtration and dual media filtration) as a pre-treatment to microfiltration (MF) were used for seawater desalination. The performance of these pre-treatments was determined in terms of silt density index (SDI) and modified fouling index (MFI) and flux decline in MF. Flux decline of MF with seawater was 45% without any pre-treatment, 42% after pre-treatment of FeCl3 flocculation, 24% after pre-treatment of sand filtration with in-line coagulation and 22% after pre-treatment of dual media filtration (sand and anthracite), respectively. MFI and SDI also indicated that deep bed filtration with in-line flocculation was better pre-treatment than flocculation alone. Detailed molecular weight distribution (MWD) of seawater organic matter was examined after different pretreatments. MWD of the initial seawater mainly ranged from 1510 Da to 130 Da. Deep bed filtration with in-line flocculation removed relatively large molecular weight of organic matter (1510-1180 Da), while the small molecular weights (less than 530 Da) were not removed. © 2009 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/9204