Title: Simultaneous Control of Bromate Ion and Chlorinous Odor in Drinking Water Using an Advanced Oxidation Process (O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>)
Abstract: Abstract Simultaneous control of chlorinous odor and bromate ion formation was attempted by using an advanced oxidation process (AOP, O3/H2O2). Also, the relationship between trichloramine (NCl3, a suspected odor compound in drinking water) and chlorinous odor in drinking water was studied through a headspace GC-MS analysis and the triangle sensory test. Odor strength after chlorination decreased by more than 50% for the samples pretreated with conventional ozonation and AOP. The change of hydroxyl radical exposure (•OH-ct) when AOP was applied did not show the clear difference in terms of the removal of chlorinous odor compared with conventional ozonation, but AOP was better for the control of bromate ion. Trichloramine seemed not to be a major odor compound in the chlorinated water of this experiment. The change of ammonium ion, bromide ion, and ozone dose did not clearly affect the efficiency of odor removal. Keywords: OzoneDisinfection Byproducts (DBPs)Advanced Oxidation Processes (AOP)Bromate IonThreshold Odor Number (TON)TrichloramineChlorinous OdorDrinking Water ACKNOWLEDGMENTS This work is a part of a research project financial supported by the Department of Waterworks of the Osaka Prefectural Government. Also, we would like to acknowledge to people who devoted their time to be a panel.
Publication Year: 2011
Publication Date: 2011-03-23
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 13
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