Drum Screen / Micro Screen
Drum screen is installed behind the Bar Screen to remove the suspended materials for preventing the clogging and reduce the loadings in downstream.
Micro screen is designed to polish the effluent from secondary treatment for S.S removal.
Drum screen is a continuously screening equipment, consisted of fixed shaft and rotating drum which is covered by screening mesh. The screen mesh can be stainless steel or Polyvinyl Ester, the opening varied from 0.1 to 6.3mm. Raw water fed into the screen through the mesh and suspended solids retained in the drum screen. The retaining will be rotated to top and spray washed debris into trough. By continuously operation, the screen can handle large flow rate in small space.
The function of micro screen is same as the drum screen, but its screen mesh can be varied from 5μm to 100μm, and the material can be stainless steel or Polyvinyl Ester.