Practice of Upgrading and Efficiency Improvement in Sewage System Based on External Water Investigation and Reconstruction
The invasion of external water in the diversion sewage pipeline network is one of the main reasons for the high water level operation and low sewage concentration of the network.In response to the phenomenon of a decrease in the concentration of influent water and significant fluctuations in the total amount of sewage treatment in wastewater treatment plant(WWTP)A and B of a certain sewage system,we adhere to systematic water management.Based on a comprehensive inspection of the pipeline network,we use material balance and water balance methods to preliminarily determine the amount and area of external water entering the system,such as mountains,rivers,lakes,and rainwater.Then,we conduct actual exploration,monitoring,and verification of external water points,and trace the source of external water,accurately quantify and locate it.Combining the characteristics and basic conditions of the four types of water,a series of projects have been implemented to effectively reduce external water intrusion and improve the concentration of influent water in the WWTP.The above research results have explored an implementation path for promoting the improvement of sewage system quality and efficiency,and creating a healthy urban drainage guarantee system in the future.
external waterconcentrationupgrading and efficiencymaterial balancewater balancehigh water level