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Numerical modelling of sedimentation processes

Authors
Journal
Chemical Engineering Science
0009-2509
Publisher
Elsevier
Publication Date
Volume
55
Issue
12
Identifiers
DOI: 10.1016/s0009-2509(99)00496-0
Keywords
  • Mathematical Modelling
  • Numerical Analysis
  • Sedimentation
  • Settler
  • Slurries
  • Waste Water
Disciplines
  • Design
  • Mathematics

Abstract

Abstract This paper considers the well-documented theory for the design of sedimentation tanks. The difference in this treatment is that a numerical model is used to do the necessary calculations for the limiting flux and the equations to do this are put in a dimensionless format. The model for a cylindrical settler is extended to the case of a conical settling geometry. It is shown that the conical settler can handle a wider range of solids loading. Finally, calculations are reported to estimate the characteristics of batch settling experiments for conical settlers and the results are compared with experimental data.

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