Prediction of the terminal settling velocity of drinking water pellet softening particles

Conference paper (2017)

Authors

O.J.I. Kramer Sanitary Engineering - CEG
P.J. de Moel Waternet, Omnisys
E.T. Baars Waternet
W.H. van Vugt Hogeschool Utrecht
Jan Van Der Hoek Waternet, Sanitary Engineering - CEG
Research Group
Sanitary Engineering (CEG) (TU Delft)
Copyright: © 2017 O.J.I. Kramer, P.J. de Moel, E.T. Baars, W.H. van Vugt, J.P. van der Hoek
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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Water Management

Research Group

Sanitary Engineering

Abstract

The literature provides a comprehensive collection of equations to estimate the
terminal settling velocity of single solid particles in a liquid system. The settling velocity for perfectly round spheres can accurately be calculated. In the contrary for natural imperfect particles the experimentally measured settling velocity deviates considerably compared the calculated value. In drinking water treatment processes natural particles are frequently applied in up flow fluidisation processes and in addition sedimentation processes are applied to clarify water and to concentrate solids.

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