C
0
(mg/L)
Pseudo-first order
Pseudo-second order
q
e
(mg/g)
k
1
(1/min)
R
2
q
e
(mg/g)
k
2
(g/mg.min)
R
2
50
1.158
0.0242
0.9376
9.033
0.0485
0.9999
100
5.040
0.0334
0.9848
18.832
0.0153
1.000
200
1.137
0.0256
0.9852
68.985
0.0522
1.000
Table 2:
Kinetic parameters for the adsorption of MB (initial concentration=50-200 mg/L, SMWS dosage=0.2 g/100 mL and temperature=298K) onto SMWS based on Lagergren rate equation.