XIAO Fan,YU Hong-jing,LIU Xiao-dong,et al.Influence of Valve Tightness on Operation of V-type Filters in Waterworks[J].China Water & Wastewater,2020,36(15 15):41-45.
Influence of Valve Tightness on Operation of V-type Filters in Waterworks
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
15 15
Page:
41-45
Column:
Date of publication:
2020-08-01
- Keywords:
- V-type filter; valve; tightness; water quality safety
- Abstract:
- The water purification process of a waterworks in Guangming District of Shenzhen City is regular “coagulation-sedimentation-filtration-chlorine disinfection”, and the filters are V-type filters. Influence of the tightness of all kinds of valves on the operation of the V-type filters was investigated. All kinds of valves in the V-type filters were of great significance to backwashing strength, backwashing effect, effluent turbidity and total bacterial count of the filters, especially for effect of outlet regulating valve on effluent turbidity and total bacterial count. During the operation and maintenance of the waterworks, the tightness of all kinds of valves in the V-type filters should be checked regularly, the closeness of the outlet regulating valve should be strictly controlled, the management should be strengthened, and the devices should be changed in time. These measures are helpful to reduce the risk of abnormal turbidity and total bacterial count to ensure the safety of effluent quality.
Last Update:
2020-08-01