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NUMERICAL MODELING OF PROCESS BEHAVIOR IN ULTRAVIOLET DISINFECTION SYSTEMS

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Abstract:

Recent advances in numerical methods and modeling approaches have made it possible to conduct detailed simulations of the physical phenomena that are believed to govern the process of ultraviolet (UV) disinfection systems. Of particular importance are the models that exist to describe the radiation intensity field and the hydrodynamic behavior of the system. Research has been conducted to combine predictions of these two system characteristics to develop a process model for UV disinfection. This paper presents the use of Line Source Integration (LSI) to characterize the Intensity field and a commercial Computational Fluid Dynamics (CFD) code, FIDAP (Fluent Inc., Evanston Illinois) to account for the hydrodynamic effects of the flow. Particle trajectories were also simulated using FIDAP and a trajectory-specific dose was then calculated. Dose distribution estimates were linked to measured values of intrinsic inactivation kinetics to yield predictions of process performance.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702785033879

Publication date: January 1, 2002

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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 These proceedings are not peer reviewed.

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