Impact of giardia inactivation requirements on clo_2 By-Products

摘要

Chlorite, chlorate, and trihalomethane (THM) formation was measured following the disinfection of drinking water using chorine dioxide either alone, or followed by chlorine or monochloramine. Chlorine dioxide doses were selected to provide a range of Giardia inactivation levels as calculated using CT values (disinfectant concentration ×contact time) presented in the US Surface Water Treatment Rule. Experiments were conducted at bench-scale in batch reactors, using water obtained from Two river sources.