Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

Table 4

Characteristics of maximum for response Y.

Response	Lower limit	Target value	Weight	dmin (%)	dmax (%)	Cal. value	Exp. value
Y = MB adsorption (mg·g^−1)	180	280	1	88.11	92.78	271.56	260

d: desirability of response Y; d_min: minimal desirability of response Y; d_max: maximal desirability of response Y; Cal. value: calculated value; Exp. value: experimental value.