Reaction Kinetics and Catalysis Letters, Vol.93, No.1, 35-42, 2008
Decolorization of CI Reactive Red 2 by ozonation catalyzed by Fe(II) and UV
This work evaluated the effects of pH on decolorization of C.I. Reactive Red 2 by O-3, O-3/Fe(II), UV/O-3 and UV/O-3/Fe(II) systems. At pH 4, the decolorization rate constants of O-3, O-3/Fe(II), UV/O-3 and UV/O-3/Fe(II) systems were 1.78, 3.11, 2.04 and 3.18 hr(-1), respectively. The decolorization rates and effective energy consumption constants of all systems were higher under basic conditions than under acidic conditions.