Table 2.

Isotherm constants for the adsorption of PCP onto the modified montmorillonite

Isotherm models	Parameters	R2
Langmuir	qmax = 3.039 KL = 5.876	0.996
Freundlich	KF = 2.588 $\frac{1}{\mathrm{n}}=0.079$	0.889
Temkin	AT = 250,196.027 BT = 11,854.41	0.876