Particle Concentration Predictions in Settling Basins
Publication: Journal of Environmental Engineering
Volume 109, Issue 3
Abstract
The equation governing the concentration field for a dilute suspension of particles is presented for flow in circular and rectangular primary settling basins. The formulation is valid for two‐dimensional, mean steady, isothermal, turbulent flow conditions. Basin flow velocities are obtained from a hydrodynamic model which determines the turbulent diffusion coefficients for mass transport as part of the overall solution. A numerical solution to the mathematical model is formulated by application of the Galerkin finite element method to the equation residuals. The resulting linear, algebraic equation set is solved by a standard elimination scheme. Results include contour plots of particle concentration fields for rectangular and circular basins and removal efficiencies for these tanks. The effect of partial resuspension at the bed (deposition retarded) is included in the analysis.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 109 • Issue 3 • June 1983
Pages: 753 - 764
Copyright
Copyright © 1983 ASCE.
History
Published online: Jun 1, 1983
Published in print: Jun 1983
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