Metals

Pseudo First-Order

Experimental

Pseudo Second-Order

qe(mg/g)

k1(min-1)

R2

qe(mg/g)

qe(mg/g)

k2(min-1)

R2

Lead

5.60

0.086

0.24

5.68

5.59

4.20

0.99

Cadmium

3.68

0.022

0.73

3.69

3.68

45.45

0.99

Copper

3.01

0.212

0.78

3.01

3.02

1.41

0.99
Table 3: Comparison of rate constants, qe and correlation coefficients of pseudo first-order and pseudo second-order kinetic models.
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