CONGXue-zhi,JIAOWen-hai,YANGHong-hong,et al.Application of Submerged Ultrafiltration in the Retrofit Project of a Short Process Waterworks[J].China Water & Wastewater,2023,39(10):111-114.
Application of Submerged Ultrafiltration in the Retrofit Project of a Short Process Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第10期
Page:
111-114
Column:
Date of publication:
2023-05-17
- Keywords:
- waterworks; short process; sand filter; submerged ultrafiltration
- Abstract:
- A waterworks in Jinan City, with the treatment capacity of 5×104 m3/d, adopted traditional short process of micro-flocculation, sand filtration, and disinfection originally. In order to adapt to changes in raw water quality and meet water quality requirements specified in the Standards for Drinking Water Quality (GB 5749-2006), the waterworks was retrofitted technically based on full use of the existing facilities. The sand filter was transformed into submerged ultrafiltration membrane tank, and the Densadeg and sludge treatment facilities were also built, thus the treatment capacity reached 7×104 m3/d after reconstruction. The design idea and experience are introduced, and the water purification efficiency before and after the reconstruction are analyzed. The operation data show that since commissioning and production, the effluent quality is better than the requirements specified in the Standards for Drinking Water Quality (GB 5749-2006). The effluent turbidity, aerobic plate count and other indicators have been greatly improved compared with those before retrofit, which could provide technical reference to transform sand filter into submerged ultrafiltration membrane tank. The investment of the retrofit project is about 65 million yuan, and the unit operating cost is increased by only 0.57 yuan/m3.
Last Update:
2023-05-17