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

Table 5

Dubinin-Radushkevich parameters for cadmium and lead sorption by CAB.

Parameter	Cd			Pb
	25°C	35°C	50°C	25°C	35°C	50°C
𝑋𝑚 (mg/g)	20.45	21.75	26.6	138.38	159.17	267.73
𝐾𝑚	0.4547	0.0824	0.0675	1.94	0.824	0.0475
𝐸 (kJ/mol)	2.96	6.96	7.69	1.43	2.2	9.17
𝑅^2	0.951	0.912	0.901	0.961	0.903	0.902