Coagulation behavior of polyferric chloride for removing NOM from surface water with low concentration of organic matter and its effect on chlorine decay model

Additionally, delivery of safe and potable water throughout a distribution system requires free chlorine residuals to be maintained at acceptable levels. In order to comply with DBPs regulations, higher levels of NOM removal should be achieved which can change the water quality and in turn affect the chlorine decay kinetics. In this paper, the relationship between dosage and chlorine decay process was also discussed. The values of chlorine demand for organic compounds were calculated through a chlorine model to estimate the formation of DBPs.