The rotary screen consists of a perforated cylinder. The diameter of the holes determines the level of screening. It can be much less than 1 mm. There are two types of equipment:
In one case, the effluents arrive from the outside of the cylinder and the solid particles are recovered outwardly parallel to the axis of rotation.
In the other case, the effluent arrives from the inside of the cylinder and the solid elements are perpendicular to the axis of rotation by means of a worm or a slight inclination.
For this type of scrubber, cleaning is provided by a washing ramp and / or by brushes.
Urban :
Wastewater at the inlet of a sewage treatment plant or downstream of a pre-segregation.
Purified water at the outlet of a sewage treatment plant before rejection.
Wastewater at the entrance to the lagoon.
Industrial environment:
Process water, wash water, wastewater.
Other effluents: valuation of co-products