Swan Guide To Chlorine And Other Disinfectants

At every stage of the drinking water treatment process, Swan offers essential instruments to measure and record key water quality parameters. From raw water intake, to purification, storage and distribution Swan’s analytical instruments provide easy operation, low maintenance and rapid plant integration. Whether required for regulatory compliance or simply for optimizing treatment procedures, Swan has the right solution at each point.

Chlorine measurement is used at multiple points in the process. In the past, Chlorine was added and measured at the water intake. However, with growing concern with DBPs this is not as common.

Today chlorine is typically added in the clarification and treated water steps. Depending on contact times, there may be traces added prior to flocculation to control algae, but even this can increase disinfection byproducts (DBPs) if not managed properly.