Ozone Hydrogen Peroxide-UV Radiation
The addition of H2 O 2 to the O3/UV process accelerates the decomposition of ozone, which results in an increased rate of OH radical generation. In processes involving pollutants that are weak absorbers of UV radiation, it is more cost effective to add hydrogen peroxide externally at a reduced UV flux.
If direct photolysis of pollutants is not a major factor, O3/H2O2 should be considered as an alternative to photo-oxidation processes.
The capital and operating costs for the UV/O3 and/or H2O2 systems vary widely depending on the wastewater flow rate, types and concentrations of contaminants present, and the degree of removal required