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AWWA ACE70777

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AWWA ACE70777 Ozonation of Ciprofloxacin: Effect of Organic Matter on Treatment Efficiency, Intermediate Formation, and Antibiotic Activity

Conference Proceeding by American Water Works Association, 11/01/2009

Blaney, Lee; Lawler, Desmond F.; Katz, Lynn E.

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This powerpoint presentation begins by providing a brief overview of the increasing occurrence of pharmaceuticals in the water supply, in particular Ciprofloxacin. Research goals are presented and include: remove the pharmaceutically activecompound, ciprofloxacin, from drinkingwater;assess the residual pharmaceuticalactivity of treated water; and,determine the effects of organicmatter on treatment efficiency. Experimental materials and methods included: Ciprofloxacin; organic matter; ozone reactor; peroxone reactor; and, MIC assay. Ozonation results are presented, along with results for MIC assay. Conclusions indicate that: Ciprofloxacin was effectively removed via liquidaddition ozonation;organic matter affects ciprofloxacin oxidation andthe formation/destruction of intermediateproducts;residual antibiotic activity was successfullymonitored using a modified MIC assay; organic matter content affects antibiotic activity; intermediate oxidation products contribute toantibiotic activity; and,considering treatment efficiency in terms ofparent compound removal is not enough. Includes figures.

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Edition: Vol. - No. Published: 11/01/2009 Number of Pages: 36File Size: 1 file , 1.4 MB