Inactivation of Cryptosporidium Parvum Oocysts With Free Chlorine and Monochloramine in Single-Step and Sequential Disinfection Schemes
游离氯和一氯胺对微小隐孢子虫卵囊的一步和序贯消毒灭活
The objective of this paper is the assessment of CT values required for the inactivation of C. parvum oocysts with free chlorine and monochloramine in single-step and sequential disinfection schemes. The primary disinfectant used for sequential disinfection is ozone. Oocyst viability was determined by a modified in-vitro excystation method demonstrated to be consistent with animal infectivity data. Experiments were performed to investigate single-step disinfection with ozone, free chlorine and monochloramine, and sequential inactivation with ozone/free chlorine and ozone/monochloramine. Inactivation and ozone pretreatment experiments were conducted with a semi-batch reactor and analytical components.