Schreiber’s Model SFB Grit & Grease Removal System consists of a rectangular concrete channel with two (2) parallel chambers. The rectangular design provides efficient removal over a wide range of flows. The deeper chamber is for the settling of grit and in the other chamber grease floats to the surface for removal. The operation is automated with a PLC control for maximum operating efficiency.
Flow enters the grit channel where coarse bubble diffusers located near the bottom create a continuous and adjustable roll in the liquid. The spiral roll rate is controlled by air volume resulting in efficient grit removal. The spiral circulation scours, washes, and deposits the grit into the bottom trough of the channel. A grit pump mounted to a traveling bridge removes settled grit from the channel and discharges into an elevated grit trough above the water level. The grit slurry then flows to a grit classifier for further washing and dewatering before disposal.