Modeling the formation of chlorination by-products during enhanced coagulation

Vedat Uyak*, Ismail Toroz

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18 Atıf (Scopus)


Because of increasing need to balance health risks for pathogen control and disinfection by-products (DBP) formation in drinking water supplies, water utilities are forced to closely examine and optimize their disinfection practices. This research was designed to investigate the effects of independent variables of dissolved organic carbon (DOC), ferric chloride dosage, chlorine dose, and reaction time on trihalomethanes (THMs) formation in Terkos Lake Water (TLW) of Istanbul City. A statistically-based empirical model was developed for predicting THM formation during enhanced coagulation. The R2 and F value of model were 0.762 and 460, respectively. The model was found to be statistically significant for all four variables, and model predictions appear to be most accurate for this study. A multiple linear model exhibited the best fit of data. It was observed that THM formation depended primarily on DOC removal. Model calibration, testing and validation were accomplished by using independent data set.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)501-515
Sayfa sayısı15
DergiEnvironmental Monitoring and Assessment
Basın numarası1-3
Yayın durumuYayınlandı - Eki 2006


The authors want to thank ISKI Water Quality Control Laboratory staffs especially Sahin Ozaydin for their collaboration and supplying raw water samples. Financial support of this project was provided by Turkish Government State Planning Organization (Grant no: 1998K121930) and ITU Scientific Research Foundation (Grant no: 30666).

FinansörlerFinansör numarası
ITU Scientific Research Foundation30666
Turkish Government State Planning Organization1998K121930

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