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dc.contributor.authorChang, Sheng
dc.contributor.authorWaite, T. David
dc.contributor.authorOng, Peter E. A.
dc.contributor.authorSchäfer, Andrea
dc.contributor.authorFane, Anthony G.
dc.date.accessioned2010-11-16T14:16:28Z
dc.date.available2010-11-16T14:16:28Z
dc.date.issued2004
dc.identifier.citationChang, S. ; Waite, T.D. ; Ong, P.E.A. ; Schäfer, A.I. ; Fane, A.G. (2004) Assessment of Trace Estrogenic Contaminants Removal by Coagulant Addition, Powdered Activated Carbon Adsorption and Powdered Activated Carbon/Microfiltration Processes, ASCE Journal of Environmental Engineering, 130, 7, 736-742.en
dc.identifier.urihttp://dx.doi.org/10.1061/(ASCE)0733-9372(2004)130:7(736)
dc.identifier.urihttp://hdl.handle.net/1842/4317
dc.description.abstractIncreasing attention is being paid to health and environmental risk as a result of the presence of trace steroid estrogens in the effluent discharged from municipal sewage treatment plants. This paper focuses on assessment of removal of these trace compounds using 3H-labelled estrone as the model compound. Jar tests over a range of ferric chloride dosage and pH conditions showed that coagulation was ineffective in removal of estrone from secondary effluent. The experiments showed that the combination of PAC and microfiltration could be effective for removal of trace estrone from water. The rate and extent of estrone removal by PAC are functions of PAC dosage and retention time of PAC in the system. Mathematical analysis of the results using a homogeneous surface diffusion model (HSMD) indicates that the adsorption of estrone on PAC can be limited by film diffusion and internal surface diffusion. The surface and film mass transfer coefficients were determined to be 9.72 x 10-10 cm2/min and 1.963 cm/min, respectively, under the conditions used.en
dc.language.isoenen
dc.publisherAmerican Society of Civil Engineersen
dc.subjectEstrogenic compounden
dc.subjectAdsorptionen
dc.subjectCoagulationen
dc.subjectHybrid membrane processen
dc.titleAssessment of Trace Estrogenic Contaminants Removal by Coagulant Addition, Powdered Activated Carbon Adsorption and Powdered Activated Carbon/Microfiltration Processesen
dc.typeArticleen


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