b and m are two characteristic constants relating to the
reaction kinetics and oxidation capacities. By plotting t/(1
Ct/Co) versus t, a straight line with an intercept of m and a
slope of b was obtained.
The obtained parameters for DB71 are given in Table 1 and
Fig 8. As it can be seen from Table 2, the values of correlation
coefficient values for BMG model are mostly higher than those
of the first-order and the second-order models. Generally, calculated
regression coefficients (R2) of the BMG kinetic model
were higher than 0.99. Therefore, BMG kinetic model is the
best model to describe the decolorization of DB71 by the Fenton’s
process (Tunc et al., 2012).