Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/96461
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dc.contributor.authorWang, Penghuaen
dc.contributor.authorLim, Teik-Thyeen
dc.date.accessioned2013-06-12T04:11:27Zen
dc.date.accessioned2019-12-06T19:31:05Z-
dc.date.available2013-06-12T04:11:27Zen
dc.date.available2019-12-06T19:31:05Z-
dc.date.copyright2012en
dc.date.issued2012en
dc.identifier.citationWang, P. & Lim, T.-T. (2012). Membrane vis-LED photoreactor for simultaneous penicillin G degradation and TiO2 separation. Water Research, 46(6), 1825-1837.en
dc.identifier.issn0043-1354en
dc.identifier.urihttps://hdl.handle.net/10356/96461-
dc.identifier.urihttp://hdl.handle.net/10220/10240en
dc.description.abstractThe hybrid membrane photoreactor (MPR) combining a photoreactor irradiated with visible-light-emitting diode (vis-LED) and a cross-flow microfiltration (MF) membrane module was investigated in both closed-loop and continuous flow-through modes for the simultaneous degradation of penicillin G (PG) and separation of visible-light responsive TiO2 particles, namely C-sensitized-N-doped TiO2 (T300) and C–N–S tridoped TiO2 (T0.05-450). The turbidity of permeate water was <0.2 NTU for both T300 and T0.05-450 suspensions in the MPR system operated at different transmembrane pressures (TMPs) and cross-flow velocities (CFVs), indicating effective separation of TiO2 particles by the MF membrane. The operations at a higher TMP or lower CFV were more prone to induce TiO2 deposition on the membrane surface without backwashing, which resulted in the membrane fouling, the loss of TiO2 from the photoreactor and the decrease of PG photocatalytic degradation efficiency. 75% and 84% of PG were degraded in the closed-loop MPR without backwashing operated at 10 kPa and 0.15 m s−1 after 4 h of vis-LED irradiation using 1.0 g L−1 of T300 and T0.05-450, respectively. With backwashing of the membrane, the PG photocatalytic degradation efficiencies in the closed-loop MPR could be significantly enhanced to achieve 93% and 95% using 1.0 g L−1 of T300 and T0.05-450, respectively, which were almost comparable to those achieved in the batch photoreactor. Due to its shorter hydraulic residence time in the photoreactor, the PG degradation efficiency in the continuous flow-through MPR with backwashing was lower than that achieved in the closed-loop MPR.en
dc.language.isoenen
dc.relation.ispartofseriesWater researchen
dc.rights© 2012 Elsevier Ltd.en
dc.titleMembrane vis-LED photoreactor for simultaneous penicillin G degradation and TiO2 separationen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.identifier.doihttp://dx.doi.org/10.1016/j.watres.2011.12.057en
item.grantfulltextnone-
item.fulltextNo Fulltext-
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