AWWA WQTC71404

The presence of pharmaceuticals, endocrine disruptors, personal care products, and micropollutants in drinking water sources has led many drinking water treatment plants to consider additional barriers of treatment. One of these barriers shown to be successful at reducing the concentrations of these compounds is ultraviolet (UV) irradiation and advanced oxidation using UV and hydrogen peroxide (H₂O₂) to produce hydroxyl radicals. This paper discusses experiments performed to elucidate the change in regulated disinfection byproduct formation after UV and UV/H₂O₂ processes followed by the application of free chlorine to quench the peroxide and provide a residual disinfectant. Includes 8 references, table, figures.