AWWA ACE60073

AWWA ACE60073 Dual Inactivation of Emerging Pathogens by UV and Chlorine
Conference Proceeding by American Water Works Association, 06/17/2004

Kashinkunti, Ramesh D.; Metz, Deborah H.; Linden, Karl G.; Shin, Gwy-Am; Samuelson, Amy M.; Moran, Melissa; Sobsey, Mark D.

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This slide presentation outlines information on developing ultraviolet (UV) dose response curves forcarbon-filtered water spiked with"emerging microbes." Topics covered include:adenovirus;toxoplasma gondii oocysts;mycobaterium terrae;V-1 phage as an additional viral indicator; and,determine synergistic effects between UVand chlorine for the above microbes. Results include these observations: Cryptosporidium was (target protozoa forLT2ESWTR) effectively inactivated;UV followed by chlorine effectively inactivated ALLthe microbes/surrogated tested;there were no significant byproducts formation atthe doses tested (40-140 mJ/cm2) for both LP andMP; and,synergistic effect between UV and chlorine was notapparent.