期刊
OZONE-SCIENCE & ENGINEERING
卷 33, 期 2, 页码 136-142出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01919512.2011.547370
关键词
Ozone; Disinfection Byproducts (DBPs); Advanced Oxidation Processes (AOP); Bromate Ion; Threshold Odor Number (TON); Trichloramine; Chlorinous Odor; Drinking Water
资金
- Department of Waterworks of the Osaka Prefectural Government
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 (center dot 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.
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