Study on the chlorine decay model in the water distribution system

Tong Zhengong, Li Yani and Sha

Abstract

Maintaining some chlorine residual concentration in the water distribution system is the key step to the safety of water quality. In this text, it puts forward a new chlorine decay model after studying the chlorine spatial and temporal decay. Each decay coefficient to the model adopts the dynamic simulation of the computer to estimate. Also a modeling case is presented, it shows that the new model is more practicality and adaptability. On the basic of the water quality model, it builds the early-warning and prediction system, which will have great realistic meanings for improving the water quality and ensuring the safety of the water supply system.