Maintaining Distribution System Residuals Through Booster Chlorination
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چکیده
BACKGROUND: The practice of using disinfectants to safeguard against the acute effects of waterborne disease are well established and regulated in the United States. New regulations designed to minimize the risks associated with chronic exposure to disinfection by-products (DBPs), however, are changing the current regulatory framework. Changes in disinfection practices meant to comply with these new regulations may inadvertently increase risks associated with microbial contamination. These factors are pushing utilities to consider methods to deliver disinfectants wisely to safeguard against pathogens and minimize DBP formation. Booster disinfection provides significant new flexibility in how doses are distributed throughout the network, and thus can be an important part of a comprehensive residual maintenance strategy.
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