ASTIM - Degritors Used After Central Driven Grit Removal Systems
Degritor is mostly used after central driven grit removal systems. It is consisting of a reciprocating multi-rake mechanism which is working in an inclined narrow channel. Here reciprocating rakes move the grit up the tank incline with a rolling action that releases entrained organics. The organics are kept suspended and returned to grit chamber by an organics return pump. The inclined channel in which the degritor is installed, generally fed by means of airlifts or submersible pumps but it can also be directly mounted to one side of square grit chamber.