ABSTRACT
This chapter summarizes experiments and modeling conducted with several different advanced oxidation process (AOP) in which ultraviolet light with hydrogen peroxide, or titanium oxide have been used to oxidize butyrate and propionate ions at pH 7 or 2.2. It aims to characterize the principal oxidant(s) in AOPs through relative reactivity measurements; to develop detailed kinetic models which accurately describe rates of loss of oxidants, B and P; and the effect of system variables on rates and efficiencies. Kinetic models, which can simulate kinetic features of AOPs, are useful for optimization and for predicting the efficiencies of AOPs. Kinetic models to describe the time dependence of the AOP reactions have been developed for peroxide and ozone AOPs and are shown to be reliable predictors of the rates and concentrations of the oxidants and organic compounds in the systems. The selection and optimization of an AOP for a specific treatment depends on many factors that affect cost efficiency, but not chemical efficiency.
