Water reclamation using a ceramic nanofiltration membrane and surface flushing with ozonated water

Fujioka, T; Hoang, AT; Okuda, T; Takeuchi, H; Tanaka, H; Nghiem, LD

Water reclamation using a ceramic nanofiltration membrane and surface flushing with ozonated water

Fujioka, T Hoang, AT Okuda, T Takeuchi, H Tanaka, H Nghiem, LD

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Publication Type:: Journal Article
Citation:: International Journal of Environmental Research and Public Health, 2018, 15 (4)
Issue Date:: 2018-04-19

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Field	Value	Language
dc.contributor.author	Fujioka, T	en_US
dc.contributor.author	Hoang, AT	en_US
dc.contributor.author	Okuda, T	en_US
dc.contributor.author	Takeuchi, H	en_US
dc.contributor.author	Tanaka, H	en_US
dc.contributor.author	Nghiem, LD https://orcid.org/0000-0002-9039-5792	en_US
dc.date.available	2018-04-13	en_US
dc.date.issued	2018-04-19	en_US
dc.identifier.citation	International Journal of Environmental Research and Public Health, 2018, 15 (4)	en_US
dc.identifier.issn	1661-7827	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131225
dc.description.abstract	© 2018 by the authors. Licensee MDPI, Basel, Switzerland. A new membrane fouling control technique using ozonated water flushing was evaluated for direct nanofiltration (NF) of secondary wastewater effluent using a ceramic NF membrane. Experiments were conducted at a permeate flux of 44 L/m2h to evaluate the ozonated water flushing technique for fouling mitigation. Surface flushing with clean water did not effectively remove foulants from the NF membrane. In contrast, surface flushing with ozonated water (4 mg/L dissolved ozone) could effectively remove most foulants to restore the membrane permeability. This surface flushing technique using ozonated water was able to limit the progression of fouling to 35% in transmembrane pressure increase over five filtration cycles. Results from this study also heighten the need for further development of ceramic NF membrane to ensure adequate removal of pharmaceuticals and personal care products (PPCPs) for water recycling applications. The ceramic NF membrane used in this study showed approximately 40% TOC rejection, and the rejection of PPCPs was generally low and highly variable. It is expected that the fouling mitigation technique developed here is even more important for ceramic NF membranes with smaller pore size and thus better PPCP rejection.	en_US
dc.relation.ispartof	International Journal of Environmental Research and Public Health	en_US
dc.relation.isbasedon	10.3390/ijerph15040799	en_US
dc.subject.classification	Toxicology	en_US
dc.subject.mesh	Ozone	en_US
dc.subject.mesh	Ceramics	en_US
dc.subject.mesh	Filtration	en_US
dc.subject.mesh	Water Purification	en_US
dc.subject.mesh	Nanoparticles	en_US
dc.subject.mesh	Recycling	en_US
dc.subject.mesh	Waste Water	en_US
dc.title	Water reclamation using a ceramic nanofiltration membrane and surface flushing with ozonated water	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	15	en_US
utslib.for	091201 Ceramics	en_US
utslib.for	0502 Environmental Science and Management	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	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	15	en_US

Abstract:

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. A new membrane fouling control technique using ozonated water flushing was evaluated for direct nanofiltration (NF) of secondary wastewater effluent using a ceramic NF membrane. Experiments were conducted at a permeate flux of 44 L/m2h to evaluate the ozonated water flushing technique for fouling mitigation. Surface flushing with clean water did not effectively remove foulants from the NF membrane. In contrast, surface flushing with ozonated water (4 mg/L dissolved ozone) could effectively remove most foulants to restore the membrane permeability. This surface flushing technique using ozonated water was able to limit the progression of fouling to 35% in transmembrane pressure increase over five filtration cycles. Results from this study also heighten the need for further development of ceramic NF membrane to ensure adequate removal of pharmaceuticals and personal care products (PPCPs) for water recycling applications. The ceramic NF membrane used in this study showed approximately 40% TOC rejection, and the rejection of PPCPs was generally low and highly variable. It is expected that the fouling mitigation technique developed here is even more important for ceramic NF membranes with smaller pore size and thus better PPCP rejection.

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http://hdl.handle.net/10453/131225