Oxidized Renewable Materials for the Removal of Cobalt(II) and Copper(II) from Aqueous Solution Using in Batch and Fixed-Bed Column Adsorption

Table 6

ANOVA for 2² experimental design for adsorption of Cu²⁺ and Co²⁺ on SBox in a fixed-bed column adsorption at 25°C.

Response
Factor	Effect	SS	dF	MS			Effect	SS	dF	MS
(1)	−0.075	0.006	1	0.006	18.536	0.050	0.12	0.014	1	0.014	3.402	0.206
(2)	0.242	0.058	1	0.058	192.608	0.005	0.890	0.792	1	0.792	187.110	0.005
1 by 2	−0.051	0.003	1	0.003	8.622	0.099	−0.210	0.044	1	0.044	10.417	0.084
Lack of fit		0.002	1	0.002	6.528	0.125		0.610	1	0.610	144.166	0.007
Pure error		0.001	2	0.000				0.008	2	0.004
Total SS		0.069	6					1.469	6
Response
Factor	Effect	SS	dF	MS			Effect	SS	dF	MS
(1)	−0.004	0.000	1	0.000	0.387	0.597	0.745	0.555	1	0.555	4.145	0.179
(2)	0.132	0.017	1	0.017	465.534	0.002	0.605	0.366	1	0.366	2.734	0.240
1 by 2	−0.001	0.000	1	0.000	0.011	0.927	0.155	0.024	1	0.024	0.179	0.713
Lack of fit		0.003	1	0.003	75.858	0.013		1.427	1	1.427	10.660	0.082
Pure error		0.000	2	0.000				0.268	2	0.134
Total SS		0.020	6					2.640	6