Effects of Different Catalysts on the Ozonation of Pyruvic Acid in Water

Abstract

Removal of pyruvic acid from water has been studied through catalytic ozonation. Copper or cobalt impregnated MCM-41, Ru-Al₂O₃, Ru-CeO₂, FeO(OH) and LaTi_1-xCu_xO₃ and LaTi_1-xCo_xO₃ Perovskites have been used as catalysts. Only perovskites and Ru-CeO₂ catalysts did show significant catalytic activity to increase the ozonation of pyruvic acid.

Keywords:

• Ozone
• Catalytic Ozonation
• Pyruvic Acid
• Catalyst Activity and Stability
• Water Treatment

ACKNOWLEDGMENTS

This work has been supported by the CICYT of Spain and the European Region Development Funds of the European Commission (Project PPQ2003/00554). Mrs. Carbajo also thanks the Spanish Ministry of Science and Education for providing her a FPU grant.