Batch sedimentation hindered settling

The thickener is the industrial unit in which the concentration of a suspension is increased by sedimentation, with the formation of a clear liquid. In most cases, the concentration of the suspension is high and hindered settling takes place. Thickeners may operate as batch or continuous units, and consist of tanks from which the clear liquid is taken off at the top and the thickened liquor at the bottom. 

Figure 5.4.4 Interface positions as a function of time in batch sedimentation with hindered settling of the suspension.

Figure 5.4.5 Flux curve for batch sedimentation with hindered settling.

Figure 5.4.6 Simple concave downward flux curve with a maximum and no inflection point for batch sedimentation with hindered settling.

---