In combination with a cylindrical perforated plate and a rotating hydrofoil, for the centrifugal-based screen, the radial force puts smaller stuff through screen. The hydrofoil breaks up the mat so the unit doesn't clog up. Good removal efficiencies requires a high reject rate so a cascade arrangement is typically used. Liquid cyclone, hydrocyclone, vortex cleaner, centricleaner. Removes contaminants by centrifugal force and fluid shear.
Pump is the power source.
Pulp suspension is introduced radially. As diameter narrows the flow is forced inward increasing the centrifugal force. Plugging is a problem. Typically a cascade design. C. Several processes available.