Advanced Oxidation Processes Against Phenolic Compounds In Wastewater Treatment

Abstract Experimental research into the oxidative treatment of aqueous solutions and wastewaters containing phenolic compounds was undertaken. Ozone, supported by short wavelength UV-irradiation, hydrogen peroxide and titanium dioxide catalyst, was selected as an oxidant in the following combinations: O3, O3/H2O2, O3/UV, O3/TiO2, O3/UV/H2O2 and O3/UV/TiO2. 5-Methylresorcinol was chosen as a model compound for the experiments with synthetic phenolic solutions. The results obtained from these experiments were compared with the results of oxidative purification of wastewaters produced from the thermal treatment of oil shale in Estonia. Key Words: OzoneWastewater TreatmentOil Shale5-MethylresorcinolHydrogen PeroxideUVTitanium DioxideOzone/Hydrogen PeroxideOzone UV RadiationOzone/TitaniaOzone/UV/Hydrogen PeroxideOzone/UV/TitaniaBOD5/COD ratio