Reaction-Reactor Modeling and Kinetics of Anthraquinone Dye Oxidation using Ozone and UV Radiation

LOVATO MARÍA; C.A: MARTÍN

Florianopolis

Congreso; LET 2017- The 14th IWA Leading Edge Conference on Water and Wastewater Technologies; 2017

Abstract: Decolorization and mineralization of an anthraquinone dye, Reactive Blue 19 (RB19), by ozonation, UV radiation and ozonation combined with UV radiation (O3/UV) was carried out. O3/UV treatment resulted more effective for RB19 mineralization than the other two methods. The effect of several operational parameters, including initial dye concentration, pH, ozone dose, and UV was investigated. Major intermediates of RB19 degradation were identified by gas chromatography/mass spectrometry (GC/MS). A detailed reaction-reactor model of the kinetics of RB19 degradation was developed and the mass balances are reported. Upon estimation of the kinetic constants for RB19, simulation results were in agreement with experimental data.