A Stochastic Model for Adsorption Kinetics

Table 5

Estimated values of the parameters of the TOU model and goodness-of-fit measures for the adsorption of Cd(II) by reed leaves for initial Cd(II) concentrations of 1, 2, 4, and 6 mg/L.

	Cadmium removal
(mg/L)	1	2	4	6
(mg/g)	0.0476	0.0995	0.1995	0.2994
	1.8456	2.7386	2.8269	3.8792
((mg/g)/min)	0.7568	8.8618	1.6844	1.2885
	0.0488	0.2788	0.1618	0.1152
(1/min)	0.0577	0.1604	0.0886	0.04
(mg/g)	0.0021	0.0016	0.0037	0.0104
(mg/g)^–1	0.0063	0.0028	0.0087	0.0368
Half-life (min)	16.3429	8.381	15.7408	55.2008
Median (min)	139.23	3437.19	3890.12	11370.4
Log-likelihood	10.577	12.439	10.141	7.616
	0.9727	0.996	0.9890	0.9051
MSE (mg/g)^2	<10^−4	<10^−4	<10^−4	<10^−4
(%)	28.77	2.476	5.188	18.07