Large Scale UV Disinfection System Treats Paris Drinking Water

摘要

Sedif supplies about four million people with drinking water. With little groundwater available in the Paris suburbs, 95% of the area's water must come from three different rivers: the Oise, the Marne and the Seine. UV technology offers an added sense of assurance that the surface water is microbially free and clear without the unpleasant taste and odor of chemical disinfectants or potential chemical disinfection by-products. Still, for waterworks utilizing UV technology, operators need to be sure the treatment is permanent. Existing research suggests medium pressure UV could provide better protection against photoreactivation than low pressure UV, especially if treatment occurs prior to any process units in which water is exposed to light.