Inactivation of Cryptosporidium parvum oocysts with sequential application of ozone and combined chlorine.
Single-step inactivation experiments with ozone and monochloramine revealed the presence of a CT lag followed by pseudo-first order inactivation kinetics. Sequential disinfection experiments with ozone followed by monochloramine revealed that ozone pretreatment resulted in the removal of a more prominent CT lag observed for monochloramine. In addition, the rate of inactivation for ozone-pretreated oocysts was approximately 2.5x greater than that observed for the post-lag phase portion of the monochloramine primary inactivation curve.
Rennecker
J L
JL
Dept of Civil and Environmental Engineering, University of Illinois, Urbana, IL 61801, USA.
Corona-Vasquez
B
B
Driedger
A M
AM
Rubin
S A
SA
Mariñas
B J
BJ
D000818:Animals; D002713:Chlorine / Q000494:pharmacology*; D016785:Cryptosporidium parvum; D004202:Disinfectants / Q000494:pharmacology*; D007700:Kinetics; D010083:Oxidants, Photochemical / Q000494:pharmacology*; D010126:Ozone / Q000494:pharmacology*; D016019:Survival Analysis; D018508:Water Purification / Q000379:methods*; D014881:Water Supply
D004202:Disinfectants; D010083:Oxidants, Photochemical; D002713:Chlorine; D010126:Ozone