ECOnomical optimization of water distribution networks based on resilience index and free chlorine residual

Urban water distribution network WDN is one of the most important means which guarantees supply of water demands to different users with appropriate quantity and quality optimization of WDNs would be an effective step towards the proper use and management of water resources and meeting the growing water demands. in this article hanoi WDN has been optimized based on a quality and a quantity requirement .EPANET software was utilized along with the genetic algorithm to optimize the network. resilience index as a quantitative parameter and chlorine injection in a reservoir as a qualitative parameter were evaluated.