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Updated: Dec 15, 2025

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
Dynamic grit chamber modelling: dealing with particle settling velocity distributions
Queralt Plana1, Paul Lessard2, Peter A Vanrolleghem1
1modelEAU, Université Laval, 1065, Avenue de la Médecine, Québec, QC G1 V 0A6, Canada E-mail: queralt.plana.1@ulaval.ca; CentrEau, the Québec Water Research Center, Université Laval, 1065, Avenue de la Médecine, Québec, QC G1 V 0A6, Canada.
Abstract:
Grit chambers are meant to reduce the impact of inorganic particles on equipment and processes downstream. Despite their important role, characterization and modelling studies of these process units are scarce, leading to a lack of knowledge and suboptimal operation. Thus, this study presents the first dynamic model, based on mass balances and particle settling velocity distributions, for use in a water resource recovery facility (WRRF) simulator for design and optimization of grit removal units.
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