Thermodynamic, Kinetic, and Equilibrium Parameters for the Removal of Lead and Cadmium from Aqueous Solutions with Calcium Alginate Beads

Table 2

Kinetic parameters of lead sorption by calcium alginate beads at different temperatures.

Temperature (°C)	Pseudo-first-order (Lagergren)			Pseudo-second-order			Elovich
	𝐾𝐿 (min^−1)	𝑞𝑒 (mg/g)	𝑅^2	𝐾2 (min^−1)	𝑞𝑒 (mg/g)	𝑅^2	𝛼 (min^−1)	𝛽 (mg/g)	𝑅^2
25	0.092	12.434	0.918	0.009	13.663	0.992	22.711	0.582	0.973
35	21.279	15.595	0.918	0.031	15.716	0.998	9.261	1.767	0.971
50	20.231	15.921	0.919	0.057	15.921	0.999	4.429	3.307	0.975