Optimization of Mixing and Mass Transfer in In-line Multi-Jet Ozone Contactors Using Computational Fluid Dynamics

Typical ozone mixing and mass transfer calculations are lumped approaches based on ideal operating conditions and can misrepresent behavior in real-life installations. This article models the effect of local hydrodynamics and mixing on the overall mass transfer of ozone into water with the aid of mu...

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Bibliographic Details
Published in:Ozone: science & engineering 2016-07, Vol.38 (4), p.245-252
Main Authors: Pathapati, Srikanth S., Mazzei, Angelo L., Jackson, James R., Overbeck, Paul K., Bennett, Justin P., Cobar, Cece M.
Format: Article
Language:English
Subjects:
Basin Nozzle Manifold
Computational Fluid Dynamics
Contactors
Drinking Water Treatment
Fine Bubble Diffusion
Injection
Mass transfer
Mathematical models
Multi-Phase
Nozzles
Optimization
Ozonation
Ozone
Pipelines
Reactor Design
Retrofit
Side-Stream Venturi Injection
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Summary:Typical ozone mixing and mass transfer calculations are lumped approaches based on ideal operating conditions and can misrepresent behavior in real-life installations. This article models the effect of local hydrodynamics and mixing on the overall mass transfer of ozone into water with the aid of multiphase computational fluid dynamics (CFD). CFD models were validated with measured data from a pipeline ozone contactor installation which was optimized for more rapid, uniform mixing and mass transfer. Results emphasize the sensitivity of mixing quality to nozzle placement, size, orientation and spacing relative to main pipeline diameter and flows.
ISSN:0191-9512
1547-6545
DOI:10.1080/01919512.2016.1188682