Particle and microorganism removal in floating plastic media coupled with microfiltration membrane for surface water treatment

Chiemchaisri, C; Chiemchaisri, W; Kornboonraksa, T; Dumrongsukit, C; Threedeach, S; Ngo, HH; Vigneswaran, S

Particle and microorganism removal in floating plastic media coupled with microfiltration membrane for surface water treatment

Chiemchaisri, C Chiemchaisri, W Kornboonraksa, T Dumrongsukit, C Threedeach, S Ngo, HH

Vigneswaran, S

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Publication Type:: Journal Article
Citation:: Water Science and Technology, 2005, 51 (10), pp. 93 - 100
Issue Date:: 2005-08-17

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Field	Value	Language
dc.contributor.author	Chiemchaisri, C	en_US
dc.contributor.author	Chiemchaisri, W	en_US
dc.contributor.author	Kornboonraksa, T	en_US
dc.contributor.author	Dumrongsukit, C	en_US
dc.contributor.author	Threedeach, 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	2005-08-17	en_US
dc.identifier.citation	Water Science and Technology, 2005, 51 (10), pp. 93 - 100	en_US
dc.identifier.issn	0273-1223	en_US
dc.identifier.uri	http://hdl.handle.net/10453/3949
dc.description.abstract	Floating plastic media followed by hollow fiber microfiltration membrane was applied for surface water treatment. The performance of the system in terms of particle and microorganisms was investigated. The floating filter was examined at different filtration rates of 5, 10 and 15 m3/m2 .h. Treated water was then fed into a microfiltration unit where different filtration rates were examined at 0.6, 1.0 and 1.4 m3/m2 .d. It was found that polyaluminum chloride was the best coagulant for the removal of particle, algae and coliform bacteria. Average turbidity in treated water from the floating plastic media filter was 3.3, 12.2 and 15.5 NTU for raw water of 80 NTU and 12.9, 11.7 and 31.2 NTU for raw water of 160 NTU after 6 hours at the filtration rates of 5, 10 and 15 m3/m2 .h, respectively. The microfiltration unit could further reduce the turbidity to 0.2-0.5 NTU with low transmembrane pressure development of 0.3-3.7 kPa. Microfiltration membrane could retain most of algae and coliform bacteria remaining in the effluent from the pretreatment unit. It was found that at higher turbidity, algae and coliform bacteria removal efficiencies were achieved at lower filtration rate of the system of 5 m3/m2.h whereas a higher filtration rate of 15 m3/m2 .h yielded better coliphage removal. © IWA Publishing 2005.	en_US
dc.relation.ispartof	Water Science and Technology	en_US
dc.subject.classification	Environmental Engineering	en_US
dc.subject.mesh	Enterobacteriaceae	en_US
dc.subject.mesh	Plastics	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Filtration	en_US
dc.subject.mesh	Materials Testing	en_US
dc.subject.mesh	Water Microbiology	en_US
dc.subject.mesh	Waste Disposal, Fluid	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Particle Size	en_US
dc.subject.mesh	Eukaryota	en_US
dc.title	Particle and microorganism removal in floating plastic media coupled with microfiltration membrane for surface water treatment	en_US
dc.type	Journal Article
utslib.citation.volume	10	en_US
utslib.citation.volume	51	en_US
utslib.for	0907 Environmental Engineering	en_US
dc.location.activity	San Francisco
dc.location.activity	Freemantle, AUSTRALIA
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	10	en_US
pubs.publication-status	Published	en_US
pubs.volume	51	en_US

Abstract:

Floating plastic media followed by hollow fiber microfiltration membrane was applied for surface water treatment. The performance of the system in terms of particle and microorganisms was investigated. The floating filter was examined at different filtration rates of 5, 10 and 15 m3/m2 .h. Treated water was then fed into a microfiltration unit where different filtration rates were examined at 0.6, 1.0 and 1.4 m3/m2 .d. It was found that polyaluminum chloride was the best coagulant for the removal of particle, algae and coliform bacteria. Average turbidity in treated water from the floating plastic media filter was 3.3, 12.2 and 15.5 NTU for raw water of 80 NTU and 12.9, 11.7 and 31.2 NTU for raw water of 160 NTU after 6 hours at the filtration rates of 5, 10 and 15 m3/m2 .h, respectively. The microfiltration unit could further reduce the turbidity to 0.2-0.5 NTU with low transmembrane pressure development of 0.3-3.7 kPa. Microfiltration membrane could retain most of algae and coliform bacteria remaining in the effluent from the pretreatment unit. It was found that at higher turbidity, algae and coliform bacteria removal efficiencies were achieved at lower filtration rate of the system of 5 m3/m2.h whereas a higher filtration rate of 15 m3/m2 .h yielded better coliphage removal. © IWA Publishing 2005.

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http://hdl.handle.net/10453/3949