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Removal of Pharmaceuticals during Drinking Water Treatment

Ternes, Thomas A., Meisenheimer, Martin, McDowell, Derek, Sacher, Frank, Brauch, Heinz-Jürgen, Haist-Gulde, Brigitte, Preuss, Gudrun, Wilme, Uwe, Zulei-Seibert, Ninette·2002·Environmental Science & Technology

Abstract

The elimination of selected pharmaceuticals (bezafibrate, clofibric acid, carbamazepine, diclofenac) during drinking water treatment processes was investigated at lab and pilot scale and in real waterworks. No significant removal of pharmaceuticals was observed in batch experiments with sand under natural aerobic and anoxic conditions, thus indicating low sorption properties and high persistence with nonadapted microorganisms. These results were underscored by the presence of carbamazepine in bank-filtrated water with anaerobic conditions in a waterworks area. Flocculation using iron(III) chloride in lab-scale experiments (Jar test) and investigations in waterworks exhibited no significant elimination of the selected target pharmaceuticals. However, ozonation was in some cases very effective in eliminating these polar compounds. In lab-scale experiments, 0.5 mg/L ozone was shown to reduce the concentrations of diclofenac and carbamazepine by more than 90%, while bezafibrate was eliminated by 50% with a 1.5 mg/L ozone dose. Clofibric acid was stable even at 3 mg/L ozone. Under waterworks conditions, similar removal efficiencies were observed. In addition to ozonation, filtration with granular activated carbon (GAC) was very effective in removing pharmaceuticals. Except for clofibric acid, GAC in pilot-scale experiments and waterworks provided a major elimination of the pharmaceuticals under investigation.

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Metadata

Authors
Ternes, T. A., Meisenheimer, M., McDowell, D., Sacher, F., Brauch, H.-J., Haist-Gulde, B., Preuss, G., Wilme, U., & Zulei-Seibert, N.
Venue
Environmental Science & Technology
Published
2002-07-25
Volume
36
Issue
17
Pages
3855-3863
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W2064942505
Cited by
1,293
References
9
FWCI
32.42
Type
journal article
Language
en
Open access
closed

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