Settling in Continuous Sedimentation Tanks

by J. Francisco Cordoba-Molina, Research Engr.; Dept. of Chemical Engrg., Univ. of Waterloo, Waterloo, Ontario, Canada,
Peter L. Silveston, Prof.; Dept. of Chemical Engrg., Univ. of Waterloo, Waterloo, Ontario, Canada,
Robert R. Hudgins, Prof.; Dept. of Chemical Engrg., Univ. of Waterloo, Waterloo, Ontario, Canada,


Serial Information: Journal of the Environmental Engineering Division, 1978, Vol. 104, Issue 6, Pg. 1261-1273


Document Type: Journal Paper

Discussion: Shiba Sadataka (See full record)
Closure: (See full record)

Abstract: The widely used empirical relation for the exponential decay of sediment as a function of the overflow rate is given theoretical justification. Using the approach of Camp, who extended quiescent settling theory to particles having a distribution of settling velocities, a model is proposed for turbulent settling. This model is compared with the quiescent model of Camp for data obtained in a laboratory model of a Dorr-Oliver circular clarifier and found superior as turbulence increases.

Subject Headings: Data processing | Particle size distribution | Particle velocity | Velocity distribution | Empirical equations | Decomposition | Sediment | Overflow

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