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dc.contributor.authorLay, Winson Chee Loongen
dc.contributor.authorZhang, Jinsongen
dc.contributor.authorTang, Chuyang Y.en
dc.contributor.authorWang, Rongen
dc.contributor.authorLiu, Yuen
dc.contributor.authorFane, Anthony Gordonen
dc.identifier.citationLay, W. C., Zhang, J., Tang, C., Wang, R., Liu, Y., & Fane, A. G. (2012). Factors affecting flux performance of forward osmosis systems. Journal of Membrane Science, (394-395), 151-168.en
dc.description.abstractThe performance of a forward osmosis (FO) system may be characterised by the assessment parameters: FO–RO flux ratio (Jw/Jw(RO)), apparent FO water permeability (Jw/(πds − πml)), and the newly developed flux efficiency factor (Jw,ob/Jw,re). The former two parameters offer information on extent of internal concentration polarisation and driving force utilisation, respectively. The Jw,ob/Jw,re factor has practical relevance, and reveals the inevitable trade-off between flux and recovery (φ) for a FO system. The derived Jw,ob/Jw,re factors corresponded well to experimental observations. High water permeability, low salt-to-water permeability ratio, and large mass transfer coefficient improve the performance of a FO system, but these may also be influenced by operational and fouling effects, such as draw solute transmission, fouling resistance and cake-enhanced concentration polarisation. It was shown that membrane properties also play a significant role in fouling behaviour. Fouling amelioration factors include aeration and osmotic backwash. A thin-film composite membrane showed potential for FO application with favourable intrinsic transport parameters. It was demonstrated that a FO system could achieve stable water production with both relatively high flux efficiency (Jw,ob/Jw,re = 0.8) and high recovery (φ = 95.8%), which attested to the technology potential.en
dc.relation.ispartofseriesJournal of membrane scienceen
dc.subjectDRNTU::Engineering::Civil engineering::Water resourcesen
dc.titleFactors affecting flux performance of forward osmosis systemsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.contributor.researchSingapore Membrane Technology Centreen
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