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Computational Fluid Dynamics in Drinking Water Treatment

Series: KWR Watercycle Research Institute Series

By: Bas Wols(Author)

160 pages, b/w illustrations

IWA Publishing

Paperback | Oct 2011 | #206567 | ISBN-13: 9781780400310
Availability: Usually dispatched within 6 days Details
NHBS Price: £88.99 $114/€97 approx

About this book

Computational Fluid Dynamics (CFD) uses advanced numerical models to predict flow, mixing and (bio)-chemical reactions. In drinking water engineering, CFD is increasingly applied to predict the performance of treatment installations and to optimise these installations. A lack of understanding of the hydraulics in drinking water treatment systems has resulted in suboptimal design of installations. The formation of unwanted disinfection-by-products and the energy consumption or use of chemicals is therefore higher than necessary.

The aim of Computational Fluid Dynamics in Drinking Water Treatment is to better understand the hydraulic and (bio)-chemical processes in drinking water treatment installations using experimental and numerical techniques. By combining these techniques, CFD modelling is further developed as a tool to evaluate the performance of these installations. This leads to new insights in the applicability of models in ozone and UV systems, and new insights in design concepts of these systems. CFD modelling proves to be a powerful tool to understand the hydrodynamic and (bio)-chemical processes in drinking water systems. If applied properly, accounting for the complex turbulent motions and validated by experiments, this tool leads to a better design of UV reactors, ozone systems and other systems dictated by hydraulics.


- 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 advection, 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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