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

Table 8

Effect of competing ions on arsenite and fluorite adsorption of LCL (; ; ; ).

Interferent ions	Arsenite adsorption		Fluoride adsorption
	Molar ratio^a	(mg·g^–1)	Molar ratio^a	(mg·g^–1)
Fe(III)	0	3.14	0	8.84
	1	3.18	1	9.1
	1.4	3.28	10	15.84
	2	3.38	20	16.2
Mn(II)	0	3.14	0	8.3
	1	3.16	1	8.42
	1.4	3.2	10	9.04
	2	3.22	20	10.08
Cl-	0	3.14	0	8.30
	10	2.76	1	8.30
	20	2.16	10	8.28
	50	1.84	20	8.30
SO4^2–	0	3.14	0	8.30
	10	2.88	1	8.26
	20	2.62	10	8.26
	40	2.04	40	8.26

“a” indicates the interferent/adsorbate molar ratio.