Survey of CFD Simulation for Ultraviolet Water Disinfection Reactors

This article discusses the importance of ultraviolet for water disinfection and investigates benefits of Ultraviolet (UV) light relative to other disinfection methods. There are many parameters for design of UV reactors but there isn’t suitable method for their design. Recently many Computational Fluid Dynamics (CFD) simulations have been reported for this aim. To simulate UV reactors, three sets of equations, including hydrodynamics, radiation, kinetic and performance approach were solved simultaneously to obtain the velocity profile, fluence rate and mass fraction or path of microorganisms and the reactor design can be optimized. In this article, different approaches have been studied for hydrodynamic, radiation and kinetic in UV disinfection reactors and their advantages and disadvantages have been investigated.