Nitrate Removal from Waste-Water Using Silica Nanoparticles

Table 3

Adsorption isotherm parameters for nitrate ion removal.

	Maximum adsorption capacity Pmax (mg·g^−1)	Isotherm coefficients
		EF (mg·g^−1)	I	EL (L·mg^−1)	R^2
Freundlich isotherm		0.49	0.75		0.97
Langmuir isotherm	14.22			4.85	0.96