Principle of Operation
Influent to the drum is controlled by means of various inlet pipe designs, based on the concentration of influent and flow rate required, which distribute the influent over a large area of the drum to ensure efficient use of the drum open area. As the drum rotates, fluids pass through the perforations in the drum and fall into the water collection trough underneath the drum and are then discharged. Solids are retained and thickened within the drum and dewatered as they move to the elevated end of the drum by the internal screw auger. The thickened solids are then discharged.
- Sludge Thickening