UV design: comparison of probabilistic and deterministic design approaches

Abstract

Deterministic and probabilistic approaches to the design of ultraviolet (UV) disinfection systems are reviewed and discussed. Field data that must be collected to apply each method are identified. An empirical model to predict UV disinfection performance is presented and discussed. The advantage of the probabilistic approach is that the variability in the wastewater characteristics, the variability in the field test data, and the statistical nature of the discharge requirements are reflected in the in design of the UV system.