AWWA WQTC71402

This powerpoint presentation begins by providing a brief overview of disinfection byproducts (DBPs) and halogenated DBP toxicity. The study objective was to examine potassium permanganate (KMnO₄), chlorine dioxide (ClO₂), and hydrogen peroxide (H₂O₂) as preoxidants for reducing I-THM formation from preformed monochloramine. Two source waters with varying natural organic matter (NOM) characteristics were spiked with bromide and iodide at four bromide and iodide levels, and pH was adjusted and buffered at pH 7.5. Treatment scenarios are presented in detail, along with major findings. Includes tables, figures.