Occurrence and fate of pharmaceuticals and personal care products in drinking water in southern China

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)3097-3103
Journal / PublicationJournal of Environmental Monitoring
Volume13
Issue number11
Publication statusPublished - Nov 2011

Abstract

Occurrence and fate of pharmaceuticals and personal care products (PPCPs) in drinking water was investigated in southern China. Fifteen and twelve PPCPs were detected with concentrations of 0-36 ng L -1 in source water and of 0-20 ng L -1 in treated water, respectively. Four PPCPs were detected with concentrations of approximately 1 ng L -1 in drinking water of distribution network. Conventional water treatment processes removed the types and average concentrations of PPCPs by 30% and above 50%, respectively. Advanced water treatment processes were more efficient in the removal of most PPCPs, with the types and concentrations reduced by 50% and approximately 90%, respectively. Molecular properties of PPCPs had an important influence on their behaviors during water treatment. pK a (acidity coefficient) and K oc (organic carbon partition coefficient) of PPCPs appeared to have a combined effect on PPCPs removal during coagulation and oxidation. Adsorption and biodegradation were two possible mechanisms responsible for PPCPs removal during sand filtration. © The Royal Society of Chemistry 2011.