Advances in Chemistry

Research Article

Adsorption Studies of Lead by Enteromorpha Algae and Its Silicates Bonded Material

Table 9

Statistical evaluation of parameters of a column loaded with 1 gm (EM) and eluted with 1000 ppm lead using linear and nonlinear fit of breakthrough data to Thomas, Yoon-nelson, and Yan and Clark kinetic models.


	Adsorbent	Linear approach				Nonlinear approach

		mL·(mg·min)⁻¹	(mg·g⁻¹)		SD	mL·(mg·min)⁻¹	(mg·g⁻¹)		SSE
Thomas model	(E)	1.72 10⁻⁴	69.25	0.8305	0.8988	3.1 10⁻⁴	76.18	0.9720	0.07145	3.8 10⁻³
	(ER)	1.32 10⁻⁴	72.14	0.9677	0.3529	1.4 10⁻⁴	71.08	0.9827	0.0496	0.0022
	(EM)	7.15 10⁻⁶	375.9	0.6994	0.2715	6.0 10⁻⁶	396.78	0.7422	0.0397	0.0023

		(min⁻¹)	(min) (mg·g⁻¹)		SD	(min⁻¹)	(min) (mg·g⁻¹)		SSE
Yoon-Nelson model	(E)	0.0344	138.50 69.26	0.8305	0.8988	0.0615	152.35 76.18	0.9720	0.07145	0.0038
	(ER)	0.0264	144.18 72.10	0.9651	0.3529	0.0280	142.10 71.05	0.9819	0.04839	0.0022
	(EM)	0.0072	187.96 375.92	0.6994	0.2715	0.0061	198.40 396.80	0.7422	0.03969	0.0023

		L·(mg·min)⁻¹	(mg·g⁻¹)			L·(mg·min)⁻¹	(mg·g⁻¹)		SSE
Yan’s model	(E)	4.0 10⁻⁵	21.83	0.6412	1.709	1.2 10⁻⁴	7.58	0.9658	0.0874	0.0046
	(ER)	3.3 10⁻⁵	23.73	0.8525	0.0526	5.0 10⁻⁵	17.16	0.9818	0.0484	0.0022
	(EM)	1.5 10⁻⁶	817.34	0.9365	0.0156	1.0 10⁻⁶	982.46	0.9387	0.0094	5.5 10⁻⁴