Optimized Removal of Hydroquinone and Resorcinol by Activated Carbon Based on Shea Residue (Vitellaria paradoxa): Thermodynamics, Adsorption Mechanism, Nonlinear Kinetics, and Isotherms
Table 6
Analysis of variance (ANOVA) of adsorbed quantity of hydroquinone and resorcinol by CAK-S.
Hydroquinone
Resorcinol
Source
Df
SS
MC
F value
value
SS
MC
F value
value
A
1
1509.91
1509.91
410.49
0.0000
385.03
385.03
31.83
0.0001
B
1
84.76
84.76
23.10
0.0003
290.08
290.08
23.98
0.0003
C
1
0.30
0.36
0.10
0.7577
60.97
60.97
05.04
0.0428
D
1
1471.71
1471.71
401.17
0.0000
188.89
18889
15.62
0.0017
A2
1
252.72
252.72
68.89
0.0000
10.87
10.87
0.90
0.3604
AB
1
53.73
53.73
14.05
0.0021
158.69
158.69
13.12
0.0031
AC
1
0.01
0.01
0.00
0.9800
4.55
4.55
038
0.5504
AD
1
181.31
181.31
49.42
0.0000
8.95
8.95
0.74
0.4051
B²
1
15.63
15.63
4.26
0.0595
47.52
47.52
3.93
0.0690
BC
1
3.36
3.36
0.92
0.3555
18.51
18.51
1.53
0.2379
BD
1
0.02
0.02
0.00
0.9400
13.86
13.86
1.15
0.3040
C²
1
8.65
8.65
2.36
0.1485
1.75
1.75
0.14
0.7101
CD
1
4.57
4.57
1.25
0.2841
27.85
27.85
2.30
0.1531
D²
1
2.19
2.19
0.60
0.4534
157.45
157.45
13.02
0.0032
R² = 98.69%, adjusted R² = 97.29%
R² = 90.55%, adjusted R² = 80.38%
Significant. D: degree of freedom; SS: sum of squares; MS: mean square; adjusted R2: adjusted R2.
