Development of a simulator for ozone/UV reactor based on CFD analysis

A new CFD (Computational Fluid Dynamics) simulator for an O3/UV reactor where ozone dissolved water flows under the irradiation of UV, has been developed by combining a fluid dynamics model with a complex radical reaction model. The radical reaction model used in this simulator was found to be reaso...

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Bibliographic Details
Published in:Water science and technology 2002-01, Vol.46 (11-12), p.13-19
Main Authors: KAMLMURA, M, FURUKAWA, S, HIROTSUJI, J
Format: Article
Language:English
Subjects:
Applied sciences
Computational fluid dynamics
Computer applications
Computer Simulation
Drinking water and swimming-pool water. Desalination
Dynamics
Exact sciences and technology
Fluid dynamics
Hydrodynamics
Hydrogen peroxide
Hydroxyl Radical - analysis
Hydroxyl Radical - chemistry
Hydroxyl radicals
Irradiation
Mathematical models
Models, Theoretical
Organic carbon
Oxidants - analysis
Oxidants - chemistry
Oxidants, Photochemical - chemistry
Ozone
Ozone - chemistry
Pollution
Reactors
Simulation
Simulators
Total organic carbon
Ultraviolet radiation
Ultraviolet Rays
Waste Disposal, Fluid - methods
Water flow
Water Movements
Water Purification - methods
Water treatment and pollution
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Summary:A new CFD (Computational Fluid Dynamics) simulator for an O3/UV reactor where ozone dissolved water flows under the irradiation of UV, has been developed by combining a fluid dynamics model with a complex radical reaction model. The radical reaction model used in this simulator was found to be reasonable, because the results obtained from the simulation of a completely stirred tank reactor (CSTR) system were in good agreement with the experimental results, e.g., the concentrations of total organic carbon (TOC), hydrogen peroxide and dissolved ozone obtained from a lab-scale CSTR. Furthermore, by using this CFD simulator, the distributions of substances such as hydroxyl radical (OH*) and hydrogen peroxide in the O3/UV reactor have been investigated. These distributions showed that this CFD simulator was considered to be reasonable. In addition, the simulation results suggested that conventional reactors were not optimized.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2002.0710