Adsorption Property of Pb(II) by the Laterite-Bentonite Mixture Used as Waste Landfill Liner

Table 5

Parameters of the Langmuir and Freundlich isotherm models.

ωb (%)	T (K)	Langmuir adsorption model			Freundlich adsorption model
		qmax (mg·g^−1)	bL (L·mg^−1)	R^2	KF (mg^1−1/n·L^1/n·g^−1)	1/n	R^2
0	298	3.07	0.28	1.000	1.67	0.13	0.639
10	298	9.13	0.12	0.997	3.83	0.16	0.985
20	298	14.18	0.14	0.996	6.94	0.12	0.981
100	298	51.87	0.13	0.999	14.14	0.20	0.903
0	323	6.26	2.76	1.000	4.19	0.10	0.508
10	323	13.59	0.09	0.990	6.59	0.11	0.902
20	323	19.44	0.67	1.000	10.75	0.11	0.692
100	323	66.09	0.21	0.999	26.35	0.14	0.846