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- Publisher Website: 10.1021/es062052f
- Scopus: eid_2-s2.0-33947403943
- PMID: 17410798
- WOS: WOS:000244855100039
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Article: Effect of flux (transmembrane pressure) and membrane properties on fouling and rejection of reverse osmosis and nanofiltration membranes treating perfluorooctane sulfonate containing wastewater
Title | Effect of flux (transmembrane pressure) and membrane properties on fouling and rejection of reverse osmosis and nanofiltration membranes treating perfluorooctane sulfonate containing wastewater |
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Authors | |
Issue Date | 2007 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/est |
Citation | Environmental Science And Technology, 2007, v. 41 n. 6, p. 2008-2014 How to Cite? |
Abstract | Perfluorooctane sulfonate (PFOS) is an emergent contaminant of substantial environmental concerns. In this study, reverse osmosis (RO) and nanofiltration (NF) membranes were used to remove this toxic and persistent compound from PFOS-containing wastewater. Five RO membranes and three NF membranes were tested at a feed concentration of 10 ppm PFOS over 4 days, and the PFOS rejection and permeate flux performances were systematically investigated. PFOS rejection was well correlated to sodium chloride rejection. The rejection efficiencies for the RO membranes were >99%, and those for the NF membranes ranged from 90-99%. Improvement in PFOS rejection, together with mild flux reduction (<16%), was observed at longer filtration time. Such shifts in rejection and flux performance were probably due to the increased PFOS accumulation at longer duration, as shown by X-ray photoelectron spectroscopy and liquid chromatograph and tandem mass spectrometry results. A fraction of PFOS molecules might be entrapped in the polyamide layer of the composite membranes, which hindered the further passage of both water and other PFOS molecules. In a similar fashion, PFOS rejection and fouling were enhanced for greater initial flux and/or applied pressure, where PFOS accumulation was promoted probably due to increased hydrodynamic permeate drag. Flux reduction was also shown to correlate to membrane roughness, with the rougher membranes tend to experience more flux reduction than the smoother ones. © 2007 American Chemical Society. |
Persistent Identifier | http://hdl.handle.net/10722/185377 |
ISSN | 2023 Impact Factor: 10.8 2023 SCImago Journal Rankings: 3.516 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Tang, CY | en_US |
dc.contributor.author | Fu, QS | en_US |
dc.contributor.author | Criddle, CS | en_US |
dc.contributor.author | Leckie, JO | en_US |
dc.date.accessioned | 2013-07-30T07:32:03Z | - |
dc.date.available | 2013-07-30T07:32:03Z | - |
dc.date.issued | 2007 | en_US |
dc.identifier.citation | Environmental Science And Technology, 2007, v. 41 n. 6, p. 2008-2014 | en_US |
dc.identifier.issn | 0013-936X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/185377 | - |
dc.description.abstract | Perfluorooctane sulfonate (PFOS) is an emergent contaminant of substantial environmental concerns. In this study, reverse osmosis (RO) and nanofiltration (NF) membranes were used to remove this toxic and persistent compound from PFOS-containing wastewater. Five RO membranes and three NF membranes were tested at a feed concentration of 10 ppm PFOS over 4 days, and the PFOS rejection and permeate flux performances were systematically investigated. PFOS rejection was well correlated to sodium chloride rejection. The rejection efficiencies for the RO membranes were >99%, and those for the NF membranes ranged from 90-99%. Improvement in PFOS rejection, together with mild flux reduction (<16%), was observed at longer filtration time. Such shifts in rejection and flux performance were probably due to the increased PFOS accumulation at longer duration, as shown by X-ray photoelectron spectroscopy and liquid chromatograph and tandem mass spectrometry results. A fraction of PFOS molecules might be entrapped in the polyamide layer of the composite membranes, which hindered the further passage of both water and other PFOS molecules. In a similar fashion, PFOS rejection and fouling were enhanced for greater initial flux and/or applied pressure, where PFOS accumulation was promoted probably due to increased hydrodynamic permeate drag. Flux reduction was also shown to correlate to membrane roughness, with the rougher membranes tend to experience more flux reduction than the smoother ones. © 2007 American Chemical Society. | en_US |
dc.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/est | en_US |
dc.relation.ispartof | Environmental Science and Technology | en_US |
dc.subject.mesh | Chromatography, Liquid | en_US |
dc.subject.mesh | Filtration | en_US |
dc.subject.mesh | Fluorocarbons - Analysis | en_US |
dc.subject.mesh | Membranes, Artificial | en_US |
dc.subject.mesh | Osmotic Pressure | en_US |
dc.subject.mesh | Spectrum Analysis | en_US |
dc.subject.mesh | Tandem Mass Spectrometry | en_US |
dc.subject.mesh | Waste Disposal, Fluid - Methods | en_US |
dc.subject.mesh | Water Pollutants, Chemical - Analysis | en_US |
dc.subject.mesh | Water Purification - Methods | en_US |
dc.title | Effect of flux (transmembrane pressure) and membrane properties on fouling and rejection of reverse osmosis and nanofiltration membranes treating perfluorooctane sulfonate containing wastewater | en_US |
dc.type | Article | en_US |
dc.identifier.email | Tang, CY: tangc@hku.hk | en_US |
dc.identifier.authority | Tang, CY=rp01765 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/es062052f | en_US |
dc.identifier.pmid | 17410798 | - |
dc.identifier.scopus | eid_2-s2.0-33947403943 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33947403943&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 41 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.spage | 2008 | en_US |
dc.identifier.epage | 2014 | en_US |
dc.identifier.isi | WOS:000244855100039 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Tang, CY=35489259800 | en_US |
dc.identifier.scopusauthorid | Fu, QS=13606617700 | en_US |
dc.identifier.scopusauthorid | Criddle, CS=7004173112 | en_US |
dc.identifier.scopusauthorid | Leckie, JO=7006717360 | en_US |
dc.identifier.issnl | 0013-936X | - |