Technology Overview
Wastewater enters the open end of the inclined screen drum and passes through the screen element. In operation, as the screen becomes blinded with floating and suspended materials (screenings), it creates an additional filtering effect that removes solids much smaller than the screen aperture.
As the blinding increases, the upstream water level in the channel rises, triggering the drum to rotate. During this rotation, the drum discharges the captured screenings into a screw conveyor, aided by an outer drum washing system.
The Rotating Drum Screw Screen is available in various sizes and capacities, with drum diameters ranging from 600 mm to 1600 mm to suit different channel widths. Customers can choose between screen elements with perforated holes (aperture range 1 to 5 mm) or wedge wire (aperture range 0.25 to 3 mm).
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Screening
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