YANGJing,ZHANGZhi,PANQing,et al.Analysis on Influence of WWTP, Pump Station and Reservoir Scheduling and Other Factors on Influent Concentration of a WWTP[J].China Water & Wastewater,2024,40(20):16-22.
Analysis on Influence of WWTP, Pump Station and Reservoir Scheduling and Other Factors on Influent Concentration of a WWTP
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第20期
Page:
16-22
Column:
Date of publication:
2024-10-17
- Keywords:
- WWTP-pump station-sewer network-reservoir; integrated scheduling; improvingquality and efficiency; water quality and quantity; quantitative analysis
- Abstract:
- In view of the observed decline in BOD5 concentration in the GS wastewater purificationplant (phase I and phase Ⅱ) following the allocation of the WWTP, pump station, and reservoir water in the H district of a city, an investigation and analysis of the “WWTP-pump station-sewer network-river(reservoir)” system in the H district is conducted. Through qualitative and quantitative analysis techniques, the key factors affecting the influent BOD5 concentration can be effectively identified. This is achieved by integrating the water quality indicators of the WWTP with the characteristics of the water level, flow, B/C ratio, and C/N ratio of the pipe network, both before and after the dispatching operation. The empirical data can be utilized to enhance the dispatching operation of WWTP and facilitate a more accurate prediction of the BOD5 concentration. The research results show that: ① The total wastewater volume of potential problems in this area is about 11.6×104 m3/d, total influent BOD5 concentration in H district decreased by 17.29 mg/L; ② The total influent BOD5 concentration has been reduced by 7.14 mg/L due to the scheduling of WWTP, pump station, and reservoir; ③ The impact of low-concentration industrial wastewater and tailwater of waterworks will reduce the total influent BOD5 concentration by 1.6 mg/L; ④ Affected by the epidemic, the water supply decreased by 1.52×104 m3/d compared with that before scheduling. Therefore, it is most important to prioritize addressing the backflow of river water and opening the main outlets in H district, followed by resolving the problem of rainwater entering the sewage system. In terms of scheduling of WWTP-pump station-sewer network-reservoir operation, the integrated operation and maintenance system of WWTP-pump station-reservoir should be further promoted.
Last Update:
2024-10-17