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Grit Chamber Design Example. In case of hdpe and pvc pipeline, the material of the wall does not succumb to erosion as long as velocities are between 1 m/s and 3 m/s and moderate grit. Grit chambers will be des igned for a controlled velocity of 1 foot per second (at the average rate of flow) in order to prevent settling of organic soli ds (at low rates of flow) and scouring (at high rates of flow).
KD01.5 Vortex Grit Chamber KD GROUP from www.kd-group.dk
Geometry of grit chamber 1. 4.2.4 configuration, number of grit chambers and method of degritting grit shall be removed at the sps to safeguard the same from causing wear to the pump impeller and inside of especially rcc pumping mains. 7.5 to 20 m width :
KD01.5 Vortex Grit Chamber KD GROUP
0.15 to 0.45 (0.3 typical) figure 15.6 aerated grit chamber (first figure showing the helical flow pattern of the. Grit is removed by maintaining a constant upstream velocity of 0.3 m/s (1 ft/s). Example •design an aerated grit chamber for the treatment of municipal waste water. Dimensions of each unit 8.
