City Of Rochester, Indiana

Purpose

Grit is the material in the wastewater that is composed of small, inorganic solids. Material like coffee grounds, sand, egg shells, and gravel. This material, like the larger screenings which were removed prior in the process, cannot be treated by the wastewater treatment process and can cause excessive wear on the pumps and settling tank drags.

Removal

The grit is removed by a grit cyclone, a pump system that pumps the wastewater in to a chamber with an auger where it is lifted out of the channel and deposited into a holding container.