Development of a model for predicting trihalomethanes propagation in water distribution systems.
The rate of Trihalomethanes (THM) formation was experimentally observed to be first-order with respect to chlorine, and first-order with respect to humic acid precursors, and the overall reaction order was second-order. THM formation rate expression was formulated as a function of the concentration of THM Formation Potential (THMFP), residual chlorine concentration, reaction time and reaction temperature. A model is developed to estimate THM in water distribution systems. Since the calculated results are close to the measured values in the distribution system, it is suggested that this model is applicable to actual water distribution systems.
Li
Xin
X
Department of Chemistry, Harbin Institute of Technology, P.O. Box 2508, Harbin 150090, China. lixin@hit.edu.cn
Zhao
Hong-bin
HB
D001205:Ascorbic Acid / Q000737:chemistry; D002713:Chlorine / Q000737:chemistry*; D006812:Humic Substances; D007700:Kinetics; D008962:Models, Theoretical; D022882:Trihalomethanes / Q000138:chemical synthesis*; D014874:Water Pollutants, Chemical; D014881:Water Supply
D006812:Humic Substances; D022882:Trihalomethanes; D014874:Water Pollutants, Chemical; D002713:Chlorine; D001205:Ascorbic Acid