The SEDIVORTEX unit is installed in a circular concrete tank. The screened effluent enters into the tank by means of a suitable tangential inlet channel. A rotary paddle creates a vortex effect which settles the grit particles to the bottom of the grit trap. Air is blown through a pipe into the base of the airlift system. As this air rises through the central discharge pipe it carries the grit laden with liquid to a grit classifier. The effluent without grit goes out from the outlet channel situated in the upper chamber.
The Vortex Grit Removal can be supplied also with grit extraction pump installed out of the effluent instead of air lift grit extractor.