Modeling the kinetics of UV/H2O2 oxidation of dichloroacetic acid

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

WATER SCIENCE AND TECHNOLOGY

IWA

Año: 2007 vol. 55 p. 31 - 35

0273-1223

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.