Print Email Facebook Twitter Drinking water pellet softening Title Drinking water pellet softening: prediction the terminal settling velocity of natural particles Author Kramer, O.J.I. (TU Delft Sanitary Engineering; Waternet; Hogeschool Utrecht) de Moel, P.J. (TU Delft Sanitary Engineering; Waternet; Omnisys) Baars, E.T. (Waternet) van Vugt, W.H. (Hogeschool Utrecht) van der Hoek, J.P. (TU Delft Sanitary Engineering; Waternet) Date 2017 Abstract Natural particles are frequently applied in drinking water treatment in up-flow fluidisation processes. Additionally, sedimentation processes are applied to clarify water and to concentrate solids. To estimate the terminal settling velocity of single solid particles in a liquid system, a comprehensive collection of equations is available. For perfectly round spheres, settling velocity can be calculated accurately. For naturally imperfect particles, however, experimentally measured settling velocity shows considerable deviation compared to calculated values. This article discusses a number of experiments demonstrating this deviation and the applicability of commonly used drag-coefficient equation by Brown-Lawler. Subject drinking waterterminal settling velocitycalcium carbonate pelletspellet softeninggarnet sandgrained calcite seeding materialdrag coefficient To reference this document use: http://resolver.tudelft.nl/uuid:9381dbcd-b77a-4f07-aa81-df65514c0c74 Source 5th IWA Young Water Professionals BeNeLux conference: Ghent, Belgium Event 5th IWA Young Water Professionals BeNeLux conference, 2017-07-05 → 2017-07-07, Ghent, Belgium Part of collection Institutional Repository Document type conference paper Rights © 2017 O.J.I. Kramer, P.J. de Moel, E.T. Baars, W.H. van Vugt, J.P. van der Hoek Files PDF YWP_BeNeLux2017_Paper_OJI ... mer_v3.pdf 347.54 KB Close viewer /islandora/object/uuid:9381dbcd-b77a-4f07-aa81-df65514c0c74/datastream/OBJ/view