Abstract
A mathematical model accounting for concurrent mass transfer and a series of chemical reactions under the breakpoint chlorination is developed to predict disinfectant concentration profiles in the drinking water distribution pipe. The model is validated by comparing its numerical solutions to experimental data in the literature. The impact of important parameters on the model performance is examined by a sensitivity analysis. Practical applications of the model to minimize water quality deterioration in the distribution system are discussed in view of the results. This work can provide insight into the factors that influence all of the fundamental reactions and disinfectant transport of the breakpoint reaction. Operational criteria for the chlorination of distributed water are derived.
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