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

Table 3

Parameter of intraparticle diffusion model for arsenite and fluoride adsorption at different initial concentrations.

(mg·L^–1)	Linear one-segment regression			Linear two-segment regression			Linear three-segment regression			Linear four-segments regression
	SSE		AIC	SSE		AIC	SSE		AIC	SSE		AIC
5	28.26	0.566	11.62	8.02	0.88	-7.62	4.20	0,94	-12.77	8.02	0.93	10.01
10	113.05	0.37	39.34	48.62	0.73	28.43	1.30	0,99	-36.23	1.30	0.99	-25.60
(mg·L^–1)	Linear one-segment regression			Linear two-segment regression			Linear three-segment regression			Linear four-segments regression
	SSE		AIC	SSE		AIC	SSE		AIC	SSE		AIC
5	13.99	0.51	-2.43	4.59	0.38	-18.76	0.44	0.98	-57.98	4.59	0.89	-0.34
10	41.82	0.53	19.46	11.56	0.87	-0.30	2.10	0.98	-26.61	2.10	0.98	-15.99