Term: grit removal

grit removal

The goal of grit removal is to separate gravel and sand and other mineral materials down to a diameter between 0.2 and 0.1 mm. Grit chambers are provided to (a) protect downstream moving mechanical equipment from abrasion (b) reduce formation of heavy deposits in pipe line and (c) reduce the frequency of digester cleaning caused by excessive accumulation of grit.

There are three general types of grit chamber:

1. horizontal-flow – rectangular configuration
2. horizontal-flow – square configuration
3. aerated;