The inorganic impurities (sand, pebbles, clinker, and others) cause blocking of the pumps, diffusers and screens present during the biological and chemical treatment of the waste water. The grit separator is used for the separation of the inorganic matter bigger than 0,2 mm from the waste waters.
The water enters the grit remover where the sand and other bigger particles are separated. The accumulated inorganic particles are eliminated from the system with the screw grit separator.

The grit separator is made of AISI 314 or AISI 316 stainless steel according to the characteristics of the waste waters.