Table 7.
An analyses of variance analysis of malathion degradation.
| Source | Sum of Squares | df | Mean Square | F-Value | p-Value | Status |
|---|---|---|---|---|---|---|
| Model | 11014.18 | 9 | 1223.80 | 79.73 | <0.0001 | Significant |
| A: pH | 8978.00 | 1 | 8978.00 | 54.89 | <0.0001 | |
| B: Photocatalyst dose | 136.12 | 1 | 136.12 | 8.87 | 0.0309 | |
| C: Contact time | 171.12 | 1 | 171.12 | 11.15 | 0.0206 | |
| A.B | 42.25 | 1 | 42.25 | 2.75 | 0.0158 | |
| A.C | 0.2500 | 1 | 0.2500 | 0.0163 | 0.0403 | |
| B.C | 1.0000 | 1 | 1.0000 | 0.0651 | 0.8087 | |
| A2 | 1667.31 | 1 | 1667.31 | 108.62 | 0.0101 | |
| B2 | 0.0030 | 1 | 0.0030 | 0.0010 | 1.0000 | |
| C2 | 33.23 | 1 | 33.23 | 2.16 | 0.2012 | |
| Residual | 76.75 | 5 | 15.35 | - | - | |
| Lack of Fit | 76.75 | 3 | 25.58 | 5.36 | 0.75 | Not significant |
| Pure Error | 0.0030 | 2 | 0.0030 | - | - | |
| Cor Total | 11090.93 | 14 | - | - | - |
R2 = 0.99, R2adjusted = 0.98, Adequate Precision = 25.55.