The generated OH radical is a powerful oxidant and starts
a cascade of oxidation reactions that can convert the organic
matter in solution completely into water, carbon dioxide,
and inorganic compounds (Han et al., 2011). By tailoring the
conditions of the reaction, OH radicals which possess powerful
oxidizing potential up to +2.8 V can attack a wide variety
of toxic contaminants (Soon and Hameed, 2011).
The main objective of this work is to determine the influences
of various parameters on the degradation of DB71 dye
by the Fenton process in aqueous solution. The effect of pH,
the concentration of H2O2, Fe2+ and dye and the temperature
were investigated to determine the optimal operating conditions
for a better performance of the degradation. COD of
the mixture was determined.