Record nummer 2246108
Titel artikel Residence Time Distributions in Ozone Contactors
Auteur(s) Wols, B.A. ; Uijttewaal, W.S.J. ; Rietveld, L.C. ; Stelling, G.S. ; Dijk, J.C. van ; Hofman, J.A.M.H.
Tijdschrifttitel Ozone: science & engineering : the official journal of the International Ozone Association
Deel(Jaar)Nummer 30(2008)1
Paginering 49 - 57
Online full text
Publicatie type Artikel
Taal Engels
Toelichting (Engels) The hydraulics in ozone systems, characterized by the residence time distribution, are investigated numerically as well as experimentally. The complex geometry of the ozone contactors requires the application of computational fluid dynamics (CFD), which in combination with experimental results gives insight in the hydraulic processes. Particle tracking provides a distribution of CT-values (dissolved ozone concentration times residence time) to estimate disinfection precisely and points out dead zones that hamper disinfection. The CFD modeling predicts that small changes in geometry reducing the strength of the recirculation zone can significantly increase the inactivation of micro-organisms.
Betrokken instanties Technische Universiteit Delft
KWR, Watercycle Research Institute
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