Behaviour of Silica and Florisil as Solid Supports in the Removal Process of As(V) from Aqueous Solutions

Table 2

Kinetic parameters for As(V) adsorption onto studied material.

Temperature; (K)	(µg/g)	Pseudo-first-order			Pseudo-second-order
		(1/min)	(µg/g)		(g/µg·min)	(µg/g)
Impregnated silica
298	17	0.0207	16.66	0.9730		20.12	0.9919
308	18.5	0.0141	11.25	0.9781		20.20	0.9950
318	19	0.0143	10.56	0.9895		20.32	0.9978
Impregnated florisil
298	2.5	0.0146	0.42	0.9887	0.077	2.53	0.9999
308	2.6	0.0081	0.33	0.9614	0.083	2.59	0.9998
318	2.7	0.0079	0.30	0.9634	0.090	2.69	0.9997