Table 5 ANOVA results for the Thionine removal % quadratic model.
Source | DF | Adj SS | Adj MS | F-Value | P-Value |
|---|---|---|---|---|---|
Model | 14 | 6678.66 | 477.05 | 22.92 | 0.000 |
Linear | 4 | 6034.26 | 1508.56 | 72.47 | 0.000 |
A: Adsorbent dose | 1 | 801.97 | 801.97 | 38.53 | 0.000 |
B: pH | 1 | 896.83 | 896.83 | 43.08 | 0.000 |
C: Temperature | 1 | 3312.03 | 3312.03 | 159.11 | 0.000 |
D: Time | 1 | 1023.42 | 1023.42 | 49.17 | 0.000 |
Square | 4 | 303.12 | 75.78 | 3.64 | 0.031 |
A: Adsorbent dose*A: Adsorbent dose | 1 | 12.57 | 12.57 | 0.60 | 0.450 |
B: pH*B: pH | 1 | 224.22 | 224.22 | 10.77 | 0.005 |
C: Temperature*C: Temperature | 1 | 29.86 | 29.86 | 1.43 | 0.251 |
D: Time*D: Time | 1 | 0.01 | 0.01 | 0.00 | 0.983 |
2-Way Interaction | 6 | 341.29 | 56.88 | 2.73 | 0.057 |
A: Adsorbent dose*B: pH | 1 | 47.89 | 47.89 | 2.30 | 0.152 |
A: Adsorbent dose*C: Temperature | 1 | 106.61 | 106.61 | 5.12 | 0.040 |
A: Adsorbent dose*D: Time | 1 | 6.33 | 6.33 | 0.30 | 0.590 |
B: pH*C: Temperature | 1 | 9.73 | 9.73 | 0.47 | 0.505 |
B: pH*D: Time | 1 | 164.61 | 164.61 | 7.91 | 0.014 |
C: Temperature*D: Time | 1 | 6.13 | 6.13 | 0.29 | 0.596 |
Error | 14 | 291.42 | 20.82 | ||
Lack-of-Fit | 10 | 232.45 | 23.25 | 1.58 | 0.350 |
Pure Error | 4 | 58.97 | 14.74 | ||
Total | 28 | 6970.09 |
