Effect of H2O2 Addition on Phenol Removal from Wastewater Using TiO2/Al2O3 as Photocatalyst
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Department of Environmental Chemistry, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
Pol. J. Environ. Stud. 2009;18(6):989–993
The photocatalytic oxidation of phenol in water in the band reactor with supported TiO2 catalysts was investigated. Modified anatase/Al2O3 catalysts were used as the photocatalysts. The main aim of these studies was to determine catalytic activity of TiO2/Al2O3 and V-TiO2/Al2O3 in the removal of phenol from water. The effectiveness was measured in the configurations: TiO2/UV/O2/H2O2, TiO2/O2/H2O2, TiO2/UV/O2, and TiO2/O2. It was found that 2 hours of water treatment is enough to obtain a significant COD reduction, and that prolonging treatment time to 8 hours does not result in total phenol removal.