HUANG Meng-bin,WU Yang,WANG Mei-fang,et al.Application Practice of Grid Flocculation Tank Upgrading and Reconstruction in Shenzhen Changliupi Waterworks[J].China Water & Wastewater,2021,37(12 12):116-119.
Application Practice of Grid Flocculation Tank Upgrading and Reconstruction in Shenzhen Changliupi Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
12 12
Page:
116-119
Column:
Date of publication:
2021-06-17
- Keywords:
- waterworks; grid flocculation tank; hydrocyclone flocculator; investment cost; capacity enhancement
- Abstract:
- In order to cope with the contradiction between drinking water supply and demand brought by rapid urban development and improve the waterworks’ ability to guarantee water quality and safety, the fourth phase upgrading project of grid flocculation tank was carried out in Shenzhen Changliupi waterworks in August 2018. The hydrocyclone grid flocculator was added in different flocculation sections for technical upgrading and the tank functional transformation. The operation effect after transformation is remarkable, the actual production capacity of the waterworks is increased from 8×104 m3/d to 10×104 m3/d, and the water turbidity after sinking is kept at about 0.41 NTU. The unit investment for incremental water volume is 55 yuan/m3, and the unit water production cost of PAC has dropped by 0.005 yuan/m3. This project has few reconstruction contents, no additional construction land, low investment cost, obvious capacity improvement, and good water quality guarantee effect, which provides a reference for the improvement of similar waterworks with limited land use.
Last Update:
2021-06-17