Inactivation of Cryptosporidium parvum oocysts and Clostridium perfringens spores by a mixed-oxidant disinfectant and by free chlorine

An alternative disinfection system composed of an electrochemically produced mixed-oxidant solution was examined for inactivation of both Cryptosporidium parvum oocysts and Clostridium perfringens spores. The disinfection efficacy of the mixed-oxidant solution was compared to that of free chlorine. Findings showed that the mixed-oxidant solution was considerably more effective than free chlorine in inactivating both microorganisms. Free chlorine produced no quantifiable inactivation of C. parvum oocysts and C. perfringens spores.