Fluoride and Arsenite Removal by Adsorption on La₂O₃-CeO₂/Laterite

Table 6

Parameters of Langmuir’s and Freundlich’s isotherm models at 25°C.

		Langmuir’s isotherm model			Freundlich’s isotherm model
		(mg·g^–1)
La2O3	Arsenite	89.10	0.112	0.988	20.276	3.359	0.955
	Fluorite	67.83	0.020	0.997	3.761	1.851	0.992
CeO2	Arsenite	52.54	0.040	0.987	7.235	2.650	0.943
	Fluorite	28.17	0.204	0.991	7.443	3.696	0.964
Laterite	Arsenite	6.34	0.029	0.998	0.679	2.450	0.987
	Fluorite	4.27	0.055	0.998	0.764	3.056	0.985
LCL	Arsenite	67.08	0.063	0.996	11.400	2.873	0.965
	Fluorite	58.02	0.039	0.991	7.702	2.617	0.980