Full Description

Drinking water treatment customarily includes chlorination for disinfection. Naturalorganic matter (NOM) in surface water is a precursor for organohalogen byproductsproduced by reaction by chlorine that may produce adverse human health effects. In orderto reduce the amount of these chlorination byproducts in finished drinking waters, ozonecan be used for primary oxidation but this is always followed by terminal chlorination orchloramination. However, the ozone/chlorine or ozone/chloramine combination in adrinking water treatment plant may produce new disinfection byproducts (DBPs).Discovering their identity is the first step in determining the existence of a publichealth threat from their formation and persistence.Known ozone byproducts were reacted with chlorine. The chlorine byproducts werederivatized and extracted from the aqueous samples by various approaches that permittedtheir identity to be identified by gas chromatographic separation and ion trap massspectrometry detection. Stability tests were performed to establish optimal stabilization ofthe byproducts in samples prior to analysis. Includes 12 references, table, figures.

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Edition: Vol. - No. Published: 11/02/2003 Number of Pages: 8File Size: 1 file , 330 KB