Modeling UV Disinfection Using Integrated Computational Fluid Dynamics and Discrete Ordinates Radiation Models

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Abstract:

This paper describes a computational approach to simulate water disinfection in UV reactors. The approach uses an integrated platform for both the hydraulic and radiation models, which allows for a consistent representation of features and surfaces that not only impact flow patterns in the hydraulic model but also contribute to shadowing and wall reflections in the radiation model. A commercial reactor is simulated using this approach and results are compared to data. The use of integrated hydraulic and radiation models, which honors a consistent representation of the geometry and features within the UV reactor, can provide a more rigorous assessment of the true UV-intensity field and the resulting dose distribution. Methods are also presented to demonstrate how CFD-based models can be used to assess the performance of installed UV reactors that have different piping configurations than the validated configuration.

Keywords: CFD modeling; UV disinfection; UVDGM; discrete ordinates

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864709793848103

Publication date: January 1, 2009

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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