Modeling the kinetics of UV/H2O2 oxidation of dichloroacetic acid

ZALAZAR, C.S.; LABAS, M.D.; LOVATO, M.E.; BRANDI, R.J.; CASSANO, A.E.

Clausthal-Zellerfeld

Conferencia; 4th Conference on Oxidation Technologies for Water and Wastewater Treatment; CUTEC; 2006

The intrinsic reaction kinetics of the decomposition of dichloroacetic acid (DCA) using UV/H2O2 was studied. A complete mathematical model, including the effect of the absorbed radiation intensities and H2O2 concentration was developed.  The results of the kinetic measurements were analyzed using a complete mathematical model of the experimental device that was used for the laboratory operation (a differential reactor inside a recycle). In this way it was expected to obtain intrinsic kinetic parameters. Experimental data agree well with theoretical predictions employing just two kinetic parameters derived from the proposed reaction mechanism.