Kinetic, Equilibrium and Thermodynamic Study of the Adsorption of Pb (II) and Cd (II) Ions from Aqueous Solution by the Leaves Biomass of Guava and Cashew Plants

Table 3.

Kinetic Parametersof Guava Plant Leave (GPL)

Absorbates

Pseudo first Order

Pseudo Second Order

 

K1

qe

R2

K2

qe

R2

Pb2+

0.0003

7.5950

0.9221

0.4525

7.4794

1

Cd2+

0.0648

2.6960

0.9461

1.2336

5.9691

0.9992

Zn2+

0.0313

0.3399

0.9235

0.2571

7.1633

1