Biosorption of Pb(II) from Aqueous Solution Using Cow Hooves: Kinetics and Thermodynamics

Table 5

Kinetics’ parameters for the biosorption of Pb (II) onto CH at 298 K.

	𝑞𝑒(exp) (mgg^−1)	𝑞𝑒(cal) (mgg^−1)	𝑘1 (min^−1)	𝑘2 (g mg^−1min^−1)	𝑅^2
First order	4.81	1.9525	0.0145	—	0.6780
Second order	4.81	4.76	—	0.248	0.9983