Centrifugal Grit Chamber

Wastewater contains a certain amount of inorganic, relatively heavy material. This includes sand, bits of hard plastic, glass, pebbles, etc. These materials are abrasive and can prematurely wear pumps and other equipment.

There are several common methods of removing grit. This facility uses a centrifugal grit seperator. The wastewater enters a small, circular tank at a tangent. This produces a circular flow pattern. Centrifugal force causes the heavier matter to move to the center bottom of the chamber. There they through an opening into a temporary holding tank. The grit is periodically pumped out, dewatered, disposed of at the landfill.