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

Table 4

Isotherm model parameters and correlation coefficients (R) for lead biosorption by CAB.

𝑇 (°C)	Langmuir			Freundlich			Langmuir-Freundlich
	𝑞0 (mg/g)	𝑎𝐿 (L/mg)	𝑅	𝐾𝐹 (mg/g)(mg/L)^1/𝑛	𝑛	𝑅	𝐾𝐿𝐹 (mg/g)(mg/L)^1/𝑛	𝑎𝐿𝐹 (mg/L)	𝑛	𝑅
25	150.4	0.021	0.978	23.887	2.45	0.968	1.836	0.008	0.23	0.991
35	283.3	0.229	0.917	98.087	4.45	0.977	4.826	0.004	0.42	0.989
50	316.1	0.051	0.968	68.948	3.13	0.985	6.581	0.002	0.67	0.986