Characterization and Analysis of Argania spinosa Shells from Souss-Massa Area: Application in the Adsorption of Methylene Blue in Aqueous Solution

Table 6

Determination of kinetics constants for first and pseudosecond order.

	First order			Pseudosecond order
	(min^-1)	calc. (mg/g)		(g.min/mg)	calc. (mg/g)
50 mg.L^-1	0.01886	17.82	0.757	0.00214	27.77	0.9919	298 K
100 mg.L^-1	0.02369	26.04	0.762	0.00172	86.21	0.9999
260 mg.L^-1	0.01104	60.97	0.7078	0.00045	217.39	0.9994
50 mg. L^-1	0.03082	20.13	0.9374	0.00154	31.75	0.9944	308 K
100 mg.L^-1	0.02507	21.66	0.7287	0.00231	89.29	0.9998
260 mg.L^-1	0.03059	85.45	0.91	0.00052	212.77	0.9997
50 mg.L^-1	0.03611	3.90	0.7068	0.0213	37.59	1	318 K
100 mg.L^-1	0.0253	13.96	0.6241	0.00422	90.09	0.9999
260 mg.L^-1	0.01656	100.95	0.8325	0.000274	222.22	0.9956