This paper is focused on the influence of granulated activated carbon (GAC) and zeolite as catalysts as well as influences of temperature and pH on the ozonation process. From obtained results it can be concluded that the addition of granulated activated carbon and zeolite to model wastewater has a positive effect on the efficiency and degradation rate of methylene blue oxidation with ozone. The highest oxidation efficiency was observed in the alkaline pH range for which radical reaction mechanism of ozone is characteristic. From the results obtained during the study of the effect of temperature on the ozonation process it follows that both the efficiency and the rate of oxidation of methylene blue grow with increasing temperature.
Alvarez PM, Beltran FJ, Masa FJ, Pocostales JP (2009): A comparison between catalytic ozonation and activated carbon adsorption/ozone-regeneration processes for wastewater treatment. Appl. Catal. B, 92, 393-400.
Arslan - Alaton. (2003): The effect of pre-ozonation on the biocompatibility of reactive dye hydrolysates. Chemosphere, 51 (9), 825-833.
Derco J, Mencakova A, Almasiova B (2009): Využitie ozonu na čistenie priesakovej vody zo skladky komunalneho odpadu. Chem. Listy, 103, 581-588.
Dřimal J (1997): Ozonove technologie, sučasny stav a aplikacie. Ozonia Switzerland, 1-16.
Peixoto ALC, Silvia MB, Izario Filho HJ (2009): Leachate treatment process at a municipial stabilized landfi ll by catalytic ozonation: An exploratory study from taguchi orthogonal array. Brazilian Journal of ChemicalEngineering, 26, No. 3, 481-492.
Zhang J, Lee K-H, Cui L, Jeong T (2009): Degradation of methylene blue in aqueous solution by ozonebased processes. Journal of Industrial and EngineeringChemistry, 15, 185-189.