PMID: 16509355Mar 3, 2006Paper

Behavior of fluoroquinolones and trimethoprim during mechanical, chemical, and active sludge treatment of sewage water and digestion of sludge

Environmental Science & Technology
Richard H LindbergBarbro A V Andersson

Abstract

The behavior and fate of three fluoroquinolones (norfloxacin, ofloxacin, and ciprofloxacin), one sulfonamide (sulfamethoxazole), and trimethoprim were investigated at a sewage treatment plant in Umeå, Sweden, in 2004. This plant uses conventional mechanical, chemical, and activated sludge methods to treat the sewage water and digest the sludge; the dewatered digested sludge is pelleted (dry weight > 90% of total weight). Raw sewage water and particles as well as effluents and sludge from specific treatment areas within the plant were sampled. In addition to quantifying the antibiotics within the plant, we characterized the sample matrixes to facilitate evaluation of the results. Of the five substances examined, only norfloxacin, ciprofloxacin, and trimethoprim were present in concentrations higher than their limits of quantification. Norfloxacin and ciprofloxacin sorbed to sludge in a manner that was independent of changes in pH during sewage treatment, and more than 70% of the total amount of these compounds passing through the plant was ultimately found in the digested sludge. The results suggest that fluoroquinolones undergo thermal degradation during pelleting, but more studies are needed to confirm this. Trimethoprim was f...Continue Reading

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Citations

Nov 11, 2011·Environmental Science and Pollution Research International·Jianhui SunYunqing Pi
Dec 14, 2011·Environmental Science and Pollution Research International·Manuel Garcia-KäuferVolker Mersch-Sundermann
Aug 15, 2013·Environmental Science and Pollution Research International·Hoang Thi Thanh Thuy, Tuan Dinh Nguyen
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Nov 7, 2013·Applied Microbiology and Biotechnology·Catarina L AmorimPaula M L Castro
Sep 26, 2012·Bulletin of Environmental Contamination and Toxicology·Te-San ChenJia-Long Chen
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Mar 30, 2013·The Science of the Total Environment·Li-Jun ZhouHua-Jie Lai
Aug 28, 2012·Chemosphere·Ulrika OlofssonPeter Haglund
Jul 6, 2012·Water Research·Ulrika OlofssonPeter Haglund
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Dec 14, 2011·Integrated Environmental Assessment and Management·Virginia L CunninghamNeil J Parke

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