Study and practice of improvement and efficiency enhancement strategies in the wastewater systems of typical cities along the Yangtze River Economic Belt
The Yangtze River Economic Belt,as a frontier area for China's high-quality devel-opment,has a high level of socio-economic development.However,some cities along the belt face environmental challenges due to inadequate sewage systems,such as low influent sewage concen-trations and sewage overflow.The improvement of urban sewage systems in the Yangtze River E-conomic Belt has received significant attention from both the government and society.This project,conducted in a wastewater treatment plant and its service area in Nanchang,employs a quantitative analysis method based on water quality and quantity monitoring to diagnose major issues and identi-fy key areas for inspection.Through on-site investigations,the project identifies specific problems in the drainage network and implements targeted municipal sewage pipeline defect repairs,cross-connection rectifications,and rainwater-sewage separation projects in drainage units.After the im-plementation of the project,the average daily influent sewage volume at the wastewater treatment plant reached 63,100 m3/d,an overall increase of 33.4％.The average influent concentrations of COD and BOD5 reached 140.39 mg/L and 73.41 mg/L,respectively,with overall increases of 30.37％and 79.31％,demonstrating significant improvements in the efficiency and effectiveness of the project.
Wastewater collection systemProblem diagnosisQuality and efficiency improve-mentYangtze River Economic Belt
NETL
NSTL
万方数据
