Multi-dimensional comparison and selection of high-quality drinking water renovation project schemes for communities

In order to respond to the “Water Pollution Prevention Action Plan” promulgated by the State Council and achieve the goal of direct drinking of municipal tap water in 2035, this article uses EPANET software to conduct a hydraulic simulation of the secondary water supply network of an old community in Shanghai. According to the current pipeline network layout, three other different pipeline network layout schemes were proposed, which are simulated to compare the water age, pressure, flow rate and other hydraulic conditions at each point. Choose a more appropriate transformation plan: the current situation and plan one, and optimize the water level of the pool and the diameter of the pipe network respectively. The simulation results show that the water level optimization and pipe diameter optimization of the pool can significantly shorten the water age, and the pressure and flow velocity are in a more appropriate range. According to the simulation results, the multi-dimensional comparison and selection are finally selected based on the current situation of the optimization of the water level of the pool and the pipe diameter. Pipe Network. After testing, all water quality indicators were up to standard after the renovation, and the residual chlorine attenuation coefficient was reduced by 53.3%.