title: Inactivation of Cryptosporidium parvum oocysts with sequential application of ozone and combined chlorine.
abstract: 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.
authors.affiliation: Dept of Civil and Environmental Engineering, University of Illinois, Urbana, IL 61801, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Rennecker
authors.forename: B
authors.initials: B
authors.lastname: Corona-Vasquez
authors.forename: A M
authors.initials: AM
authors.lastname: Driedger
authors.forename: S A
authors.initials: SA
authors.lastname: Rubin
authors.forename: B J
authors.initials: BJ
authors.lastname: Mariñas
mesh_terms: 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
chemical_list: D004202:Disinfectants; D010083:Oxidants, Photochemical; D002713:Chlorine; D010126:Ozone