Enhanced natural organic matter removal in floating media filter coupled with microfiltration membrane for river water treatment

Chiemchaisri, C; Passananon, S; Ngo, HH; Vigneswaran, S

Enhanced natural organic matter removal in floating media filter coupled with microfiltration membrane for river water treatment

Chiemchaisri, C Passananon, S Ngo, HH

Vigneswaran, S

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Publication Type:: Journal Article
Citation:: Desalination, 2008, 234 (1-3), pp. 335 - 343
Issue Date:: 2008-12-31

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Field	Value	Language
dc.contributor.author	Chiemchaisri, C	en_US
dc.contributor.author	Passananon, S	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Vigneswaran, S https://orcid.org/0000-0002-8117-4322	en_US
dc.date.issued	2008-12-31	en_US
dc.identifier.citation	Desalination, 2008, 234 (1-3), pp. 335 - 343	en_US
dc.identifier.issn	0011-9164	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9173
dc.description.abstract	This research work was carried out to determine natural organic matter (NOM) removal in floating media filter coupled with microfiltration membrane applied to the treatment of river water in Bangkok, Thailand. Polyaluminum chloride was found to be the most effective coagulant providing enhanced coagulation effect for NOM removal. Optimum filtration rate of floating media filter was 11 m3/m2 h at which highest NOM removal efficiencies of 82.2% was achieved. Subsequent treatment in microfiltration membrane unit operated at a filtration rate of 0.45 m3/m2 d provided total NOM removal of 85.7-86.6%. Periodical cleanings of floating media filter and microfiltration membrane were accomplished by using air scouring coupled with water flushing at every 8 and 24 h interval. As a result of NOM removal, the sum of trihalomethane (THM) ratio was reduced from 0.5-1.1 in raw water to 0.2-0.6 in treated water. Membrane fouling study revealed that both turbidity and NOM affected transmembrane pressure (TMP) built up but particulate fouling provided greater impact on TMP as compared to organic adsorption on the membrane surface. © 2008 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Desalination	en_US
dc.relation.isbasedon	10.1016/j.desal.2007.09.102	en_US
dc.subject.classification	Chemical Engineering	en_US
dc.title	Enhanced natural organic matter removal in floating media filter coupled with microfiltration membrane for river water treatment	en_US
dc.type	Journal Article
utslib.citation.volume	1-3	en_US
utslib.citation.volume	234	en_US
utslib.for	0907 Environmental Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
dc.location.activity	Taipei, TAIWAN
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.issue	1-3	en_US
pubs.publication-status	Published	en_US
pubs.volume	234	en_US

Abstract:

This research work was carried out to determine natural organic matter (NOM) removal in floating media filter coupled with microfiltration membrane applied to the treatment of river water in Bangkok, Thailand. Polyaluminum chloride was found to be the most effective coagulant providing enhanced coagulation effect for NOM removal. Optimum filtration rate of floating media filter was 11 m3/m2 h at which highest NOM removal efficiencies of 82.2% was achieved. Subsequent treatment in microfiltration membrane unit operated at a filtration rate of 0.45 m3/m2 d provided total NOM removal of 85.7-86.6%. Periodical cleanings of floating media filter and microfiltration membrane were accomplished by using air scouring coupled with water flushing at every 8 and 24 h interval. As a result of NOM removal, the sum of trihalomethane (THM) ratio was reduced from 0.5-1.1 in raw water to 0.2-0.6 in treated water. Membrane fouling study revealed that both turbidity and NOM affected transmembrane pressure (TMP) built up but particulate fouling provided greater impact on TMP as compared to organic adsorption on the membrane surface. © 2008 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/9173