Abstract:Abstract：The concentration of residual chlorine is an important factor indicates the water quality in drinking water distribution system. The monitoring equipments of the residual chlorine on the water distribution system are limited, so the general operational situation of the network can’t be reflected effectively. At present, the water quality model is static which is based on the hydraulic model. In the model, it assumes that the decay parameters of the residual chlorine of the pipes are assumed to be constant, so it is not fit for the multi-sources water distribution system whose chlorine decay parameters are different. In this paper, a new water quality model is established which corresponds with the real network more, solved by the Genetic Algorithm, and optimization result which satisfies the requirement of the residual chlorine concentration at each junction is obtained. The model is applied on the real network to obtain the valuable information on the water quality operation.
