EXPLORATION OF THE MUTUALITY AND VARIATION CORRELATING COMBINED CHLORINE CONCENTRATIONS WITH OTHER FACTORS IN THE WATER DISTRIBUTION SYSTEM

摘要

A mathematical model was used to simulate combined chlorine in a real full-scale drinking water distribution system by integrating the hydraulic characteristics in the pipe network with the variations in chlorine residuals. The hydraulic flows were validated using EPANET model numerical solutions; the combined chlorine simulations were verified using a single pipe system in a laboratory experiment. Field data for the water demand and hourly changes at each node were not easily accessible in this model application. This study therefore adopted three types (commercial, mixed, and residential) of water use around the nodes. The results were analyzed using a methodical generalization and classification accepted by the field measurements and model simulations. This model efficiently assures that the model could accurately simulate combined chlorine concentrations. Moreover, the time and space functional characteristics of a drinking water distribution system were accurately captured.