Metal ion
Experimental
First-order model
Second-order model
q
e(exp)
K
1
(min
-1
)
q
e
(theor)(mg/g)
R
2
K
2
(g/mgmin)
q
e
(theor)(mg/g)
R
2
Fe(Ш)
0.85
3.67*10
-
1
0.273
0.81
2.08*10-1
0.87
1
Mn(П)
1.25
3.5*10
-
2
1.02
0.95
8.25*10-2
1.21
1
Table 3:
First-order and second-order constants for the adsorption of Fe (Ш) and Mn (П) by carbon C1.
