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Occurrence and reduction of pharmaceuticals in the water phase at Swedish wastewater treatment plants.

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Author

Summary, in English

During the last decade, several screening programs for pharmaceuticals at Swedish wastewater treatment plants (WWTPs) have been conducted by research institutes, county councils, and wastewater treatment companies. In this study, influent and effluent concentrations compiled from these screening programs were used to assess the occurrence and reduction of non-antibiotic pharmaceuticals for human usage. The study is limited to full-scale WWTPs with biological treatment. Based on the data compiled, a total of 70 non-antibiotic pharmaceuticals have been detected, at concentrations ranging from a few ng/L to several μg/L, in the influent water. The influent concentrations were compared with the sale volumes and for many pharmaceuticals it was shown that only a small fraction of the amount sold reaches WWTPs as dissolved parent compounds. Pharmaceuticals with low reduction degrees at traditional WWTPs were identified. Further comparison based on the biological treatment showed lower reduction degrees for several pharmaceuticals in trickling filter plants compared with activated sludge plants with nitrogen removal.

Publishing year

2012

Language

English

Pages

783-791

Publication/Series

Water Science and Technology

Volume

66

Issue

4

Document type

Journal article

Publisher

IWA Publishing

Topic

  • Chemical Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 0273-1223