You are here:
CRYPTOSPORIDIUM INACTIVATION AND REMOVAL RESEARCH
Citation:
Dugan*, N AND R J. Miltner*. CRYPTOSPORIDIUM INACTIVATION AND REMOVAL RESEARCH. Presented at WSWRD Peer Review, Cincinnati, OH, September 27 - 29, 2004.
Impact/Purpose:
To inform the public.
Description:
Bench- and pilot-scale tests were performed to assess the ability of conventional treatment, ozonation and chlorine dioxide to remove and inactivate Cryptosporidium oocysts. The impacts of coagulant type, coagulant dose, raw water quality, filter loading rates and filter media were evaluated for conventional treatment. Under optimal coagulation conditions, conventional treatment achieved greater than 4 log total Cryptosporidium removal. The impacts of CT, Cryptosporidium strain, Cryptosporidium lot and viability assay were evaluated for oxidation studies. Greater than 2 log Cryptosporidium inactivation was observed. The oocyst production lot and viability assays had a significant impact on the observed Cryptosporidium inactivation.