Che 324 Fluid and Particle Processes
Chapter 6 Sedimentation
(B) Continuous settlers
Continuous settlers are used to treat a stream for
clarification or slurry to be thickened. The fluid flow
through and the overflow from the thickener are
continuous, however, the solids removal may be either
continuous or intermittent. The geometry of continuous
settlers may be vertical, inclined or horizontal.
Horizontal continuous settlers are usually used for
clarification operations. Feed enters at one end and
clarified liquid overflows at the other. The settled sludge
is removed intermittently from the bottom of the vessel.