Equilibrium, Kinetics, and Thermodynamics of the Biosorption of Zn(II) from Aqueous Solution Using Powdered Cow Hooves

Table 1

Kinetic parameters for the biosorption of zinc on CH.

Pseudo-first-order				Pseudo-second-order
𝑘1 (min^−1)	𝑞𝑒 (th) (mgg^−1)	𝑞𝑒 (ex) (mgg^−1)	𝑅^2	𝑘2 (gmg^−1 min^−1)	𝑞𝑒 (th) (mgg^−1)	𝑅^2
−0.00713	0.108	4.725	0.4472	2.565	4.68	0.999