Cost-Effective and Eco-Friendly Method for Decolorization of Malachite Green …
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Table 2 ANOVA for MG removal in continuous study
Source
Sum of squares DF Mean square F-value p-value
Model
12.13
14 0.87
131.61
<0.0001 Significant
A-Alginate
concentration
3.75E−03
1
3.75E−03
0.57
0.4621
B-Bed height 1.25
1
1.25
190.03
< 0.0001
C-Flow rate
0.17
1
0.17
25.31
0.0001
D-MG
concentration
0.12
1
0.12
18.29
0.0007
AB
0.017
1
0.017
2.57
0.13
AC
2.02
1
2.02
306.24
<0.0001
AD
2.25
1
2.25
341.71
< 0.0001
BC
0.13
1
0.13
19.14
0.0005
BD
0.73
1
0.73
111.02
<0.0001
CD
1.81
1
1.81
274.74
<0.0001
A 2
0.082
1
0.082
12.41
0.0031
B 2
0.084
1
0.084
12.79
0.0028
C 2
3.32
1
3.32
504.24
<0.0001
D 2
0.016
1
0.016
2.43
0.1397
Residual
0.099
15 6.58E−03
Lack of fit
0.078
10 7.85E−03
1.93
0.2416 Non-significant
Pure error
0.02
5
4.06E−03
Cor total
12.23
29
DF Degree of freedom
Fig. 2 Predicted versus
actual plots in continuous
study