• Table of Contents: Introduction; Hydraulics in drinking water engineering, Disinfection and oxidation treatment, Hydraulic processes, CFD modeling, Aim and outline of this thesis; Modelling tools for flow, mixing and reaction; Flow model, Tracer transport , Physical or chemical processes, Effects on water quality, Alternative disinfection models for ozone systems, UV parameter study; Particle tracking; Stochastic differential equations, Numerical implementation advocation, Numerical implementation diffusion,Test case: channel flow, Number of particles; Ozone systems; Experiments of Leiduin ozone contactor, CFD modelling of various ozone contactors, CFD results of hydraulic optimizations, Assessment of disinfection models, Sensitivity to kinetic parameters, Short-circuiting, Conclusions; Single cross-ow UV lamp systems; Experiments of various UV lamp shapes, CFD modelling of the reference cylinder, Comparison between LES model and k-" model, Conclusions; UV systems; Experiments of a bench-scale UV reactor, CFD modelling of a bench-scale UV reactor, Design of hydraulically optimised UV reactors, Conclusions; General conclusions; CFD modelling aspects, System design considerations, Outlook for CFD modelling in disinfection/oxidation processes, A Modelling approaches, B UV irradiation model

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• Table of Contents: Introduction; Hydraulics in drinking water engineering, Disinfection and oxidation treatment, Hydraulic processes, CFD modeling, Aim and outline of this thesis; Modelling tools for flow, mixing and reaction; Flow model, Tracer transport , Physical or chemical processes, Effects on water quality, Alternative disinfection models for ozone systems, UV parameter study; Particle tracking; Stochastic differential equations, Numerical implementation advocation, Numerical implementation diffusion,Test case: channel flow, Number of particles; Ozone systems; Experiments of Leiduin ozone contactor, CFD modelling of various ozone contactors, CFD results of hydraulic optimizations, Assessment of disinfection models, Sensitivity to kinetic parameters, Short-circuiting, Conclusions; Single cross-ow UV lamp systems; Experiments of various UV lamp shapes, CFD modelling of the reference cylinder, Comparison between LES model and k-" model, Conclusions; UV systems; Experiments of a bench-scale UV reactor, CFD modelling of a bench-scale UV reactor, Design of hydraulically optimised UV reactors, Conclusions; General conclusions; CFD modelling aspects, System design considerations, Outlook for CFD modelling in disinfection/oxidation processes, A Modelling approaches, B UV irradiation model

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• Table of Contents: Introduction; Hydraulics in drinking water engineering, Disinfection and oxidation treatment, Hydraulic processes, CFD modeling, Aim and outline of this thesis; Modelling tools for flow, mixing and reaction; Flow model, Tracer transport , Physical or chemical processes, Effects on water quality, Alternative disinfection models for ozone systems, UV parameter study; Particle tracking; Stochastic differential equations, Numerical implementation advocation, Numerical implementation diffusion,Test case: channel flow, Number of particles; Ozone systems; Experiments of Leiduin ozone contactor, CFD modelling of various ozone contactors, CFD results of hydraulic optimizations, Assessment of disinfection models, Sensitivity to kinetic parameters, Short-circuiting, Conclusions; Single cross-ow UV lamp systems; Experiments of various UV lamp shapes, CFD modelling of the reference cylinder, Comparison between LES model and k-" model, Conclusions; UV systems; Experiments of a bench-scale UV reactor, CFD modelling of a bench-scale UV reactor, Design of hydraulically optimised UV reactors, Conclusions; General conclusions; CFD modelling aspects, System design considerations, Outlook for CFD modelling in disinfection/oxidation processes, A Modelling approaches, B UV irradiation model

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