Effective Remediation of Lead Ions from Aqueous Solution by Chemically Carbonized Rubber Wood Sawdust: Equilibrium, Kinetics, and Thermodynamic Study

Table 1

Parameters of Langmuir, Freundlich, and Temkin adsorption isotherm constants for adsorption of lead onto CCRWSD.

Langmuir		Freundlich		Temkin		Dubinin-Radushkevich
(mg/g)	41.15	(mg/g)	27.63		8.16	(mg/g)	32.06
(L/mg)	2.73		2.44	(J/mol)	308.76	(mol^2 J^2)	0.0031
	0.859–0.960		0.988	(L/g)	34.1	(kJ/mol)	12.70
	0.992				0.993		0.954