Removal of Chromium (VI) and Lead (II) from Aqueous Solution Using Domestic Rice Husk Ash- (RHA-) Based Zeolite Faujasite

Table 2

Parametric values of Langmuir and Freundlich isotherm data.

Isotherm model	Parameters	Values
		Cr(VI)	Pb(II)
Langmuir isotherm	(L/mg)	0.0784	1.7391
	(mg/g)	3.95	342.46
		0.991	0.999
Freundlich isotherm	(mg/g)	1.3269	324.31
		0.2146	0.0092
		0.971	0.896