Optimal operation of multi-source water distribution system to evade source contamination introduction

Urban water distribution system(WDS) is an important infrastructure of a city , which plays an indispensable and significant role in people's life and social production. With the economic and social development, the safety of water supply is given more attention. However, the growth conditions of water contamination and many other uncertainties is leading to contingent water source contamination accidents frequently occurred, which has posed a severe challenge to the safety and reliability of water supply system. This paper aims to address the challenge to improve the safety and reliability of water supply system. An multi objective optimal operation model of multi-source water distribution system under the condition of water shortage with water source contaminated was developed and solved by an improved Non-dominated Sorting Genetic Algorithm (NSGA) , and applied and evaluated in the water distribution system of D city in North China. The evaluation results of the proposed optimal hydraulic model demonstrates that optimal operation of multi-source water distribution system can be efficiently solve the evade source contamination problem instead of traditional hydraulic model of water distribution system.