Chlorine and UV disinfection of ampicillin-resistant and trimethoprim-resistant <i>Escherichia coli</i>A paper submitted to the Journal of Environmental Engineering and Science.

Canadian Journal of Civil Engineering - Tập 36 Số 5 - Trang 889-894 - 2009
Michael R. Templeton1,2, Francine Oddy1,2, Wing-kit Leung1,2, Michael Rogers1,2
1Centre for Environmental Policy, Faculty of Natural Sciences, Imperial College London South Kensington Campus, London, SW7 2AZ, United Kingdom.
2Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom

Tóm tắt

This bench-scale study investigated whether strains of Escherichia coli that are resistant to two common types of antibiotics, ampicillin and trimethoprim, possess increased resistance to two common disinfectants in water and wastewater treatment, free chlorine and ultraviolet disinfection, relative to an antibiotic-sensitive strain of E. coli isolated from sewage sludge. Trimethoprim-resistant E. coli was slightly more resistant to chlorine than the antibiotic-sensitive isolate and the ampicillin-resistant E. coli under the study conditions (95% confidence), however this difference would not be important under normal chlorination conditions applied in practice. There were no statistically significant differences between the ultraviolet dose-response profiles of the antibiotic-resistant and antibiotic-sensitive E. coli strains over the ultraviolet dose range tested.

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