Seasonal Determination and Investigation of Disinfection by Product Formation Potentials (DBPFPs) of Surface Waters, İstanbul Ömerli and Büyükçekmece Case Study

All surface and ground waters include natural organic matter (NOM). During the disinfection NOM reacts with chlorine and forms various types of halogenated disinfection by-products (DBPs). There are lots of study in the literature about these possible carcinogenic effects on human. Trihalomethanes (THMs) and haloacetic acids (HAAs) are the most widely known and most produced DBPs. But there lots of different types of DBPs occurred after the disinfection and sometimes absorbable organic halogens (AOX) measurement can be used for determining the total amount of DBPs. In this study raw water samples were taken from Büyükçekmece (BC) and Ömerli (OM) surface water sources in the seasonal basis. At the first stage water quality parameters were analysed and then samples were chlorinated. After 7 days reaction period THMs, HAAs, haloasetonitrilles (HANs), chloral hydrate (CH), chloropicrin (CP) and AOX measurements were conducted and according to these results undefined DBPs percentage of AOX was calculated. In terms of OM and BC raw water undefined portion of AOX was averagely calculated as 59.4% and 58% respectively.

Keywords:

NOM Chlorination, Dbp,

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