LIUYun-kui.Process Optimization and Technological Upgrading of Air Flotation Unit in a Waterworks[J].China Water & Wastewater,2024,40(16):101-105.
Process Optimization and Technological Upgrading of Air Flotation Unit in a Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第16期
Page:
101-105
Column:
Date of publication:
2024-08-17
- Abstract:
- The design scale of M waterworks in Shandong Province is 10×104 m3/d, and the raw water is from a reservoir. The air flotation process unit was added in 2003 include a static pipe mixer, the perforated swirl pools and the gas flotation pools. In view of the problems found during actual operation, the corresponding improvement measures were taken that the current pipeline mixing and perforation swirl processes were optimized to mechanical mixing and flocculation processes. The high speed air flotation technology is adopted to increase the surface loading from the original design of 5.6 m3/(m2·h) to 12.1 m3/(m2·h), thus shortening the length of the separation zone to 8.0 m, and changing the space saved into a straight plate flocculation zone and gas surface water zone. The layout of the dissolved gas tank is optimized and the length of the dissolved gas pipe is shortened. The high resistance water distribution plate with more uniform water collection and coupled with high speed air flotation technology is adopted to improve the air flotation water collection mode. The water level control mode of air float scraping slag is changed from electric regulating valve to electric weir gate with instant linkage and faster operation, which is more intuitive and convenient.
Last Update:
2024-08-17