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An adsorption-photocatalysis hybrid process using multi-functional-nanoporous materials for wastewater reclamation

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dc.contributor.authorVimonses, V.
dc.contributor.authorJin, B.
dc.contributor.authorChow, C.
dc.contributor.authorSaint, C.
dc.date.issued2010
dc.description.abstractIn this study, two of our recently developed laboratory scale wastewater treatment systems, fluidised-bed reactor (FBR) using formulated clay mixture absorbents (clay-FBR adsorption) and an annular slurry photoreactor (ASP) using TiO2 impregnated kaolin catalysts (TiO2-K-ASP) were integrated as an adsorptionephotocatalysis hybrid process to treat municipal wastewater as alternative secondary and tertiary treatment for wastewater reclamation. Primary effluent from sewage and secondary effluent from a membrane bioreactor treatment process were used to assess chemical removal capabilities of the FBR and ASP systems, and the hybrid process. The formulated clays-FBR system demonstrated the prevailing removal efficiency toward PO4 3 , NO3 and suspended solids. The TiO2-K-ASP showed superior degradation of dissolved organic content; while the presence of inorganic ions caused a detrimental effect on its performance. The integration of the adsorption and degradation system as a hybrid treatment process resulted in a synergetic enhancement for the chemical removal efficiency. Complete elimination of PO4 3 content was obtained in the adsorption stage; while 30% and 65% NO3 removal were obtained from the hybrid treatment of the primary and secondary effluents, respectively. The corresponding COD reduction during the photodegradation was further investigated by the high-performance size exclusion chromatography technique, where it revealed the shift of apparent molecular weight of the dissolved organic contaminants toward the smaller region. This present study demonstrated that this adsorptionephotocatalysis hybrid technology can be used as a feasible alternative treatment process for wastewater reclamation.
dc.description.statementofresponsibilityVipasiri Vimonses, Bo Jin, Christopher W.K. Chow, Christopher Saint
dc.identifier.citationWater Research, 2010; 44(18):5385-5397
dc.identifier.doi10.1016/j.watres.2010.06.033
dc.identifier.issn0043-1354
dc.identifier.issn1879-2448
dc.identifier.urihttp://hdl.handle.net/2440/61685
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.granthttp://purl.org/au-research/grants/arc/LP0562076
dc.rightsCopyright © 2010 Elsevier Ltd. All rights reserved.
dc.source.urihttps://doi.org/10.1016/j.watres.2010.06.033
dc.subjectAdsorption–photocatalysis hybrid treatment process
dc.subjectDegradation
dc.subjectClay adsorbent
dc.subjectTiO2
dc.subjectWastewater reclamation
dc.titleAn adsorption-photocatalysis hybrid process using multi-functional-nanoporous materials for wastewater reclamation
dc.typeJournal article
pubs.publication-statusPublished

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