Use of computational fluid dynamics for simulating hydrodynamics and mass transfer in industrial ozonation towers

摘要: Abstract Ozonation is often used for drinking water disinfection. tower usually to dissolve the ozonated gas in by mass transfer between two phases. In particular, bubbly flow chosen due its high interfacial area. The main objective of present paper upgrade industrial ozonation using computational fluid dynamics software ASTRID adapted such flows. Hydrodynamics simulated and numerical results are compared global measurements residence time distribution (RTD). Then ozone local concentration water. A more complete validation methodology choice closure relations has been done previously an airlift reactor (Cockx, Chemical Engineering Science, 1997, 52(21/22) 3787–3793). Numerical good agreement with experimental measurements. Accounting quality consumption phase, it possible simulate two-phase zones be able predict inactivation level micro-organisms. After validation, same method propose upgraded allowing double efficiency disinfection process.