Table 4 Analysis of variance (ANOVA) for the average values of TOC percentage reduction in the photo-Fenton process based experiments as per L 9 orthogonal design of experiments
Factors | Sum of square | Degree of freedom | Average sum of square | F | p-value |
|---|---|---|---|---|---|
Temperature | 9.50 | 2 | 4.70 | 3.50 | 0.0763 |
pH | 0.10 | 2 | 0.03 | 0.02 | 0.9766 |
Fenton Concentration | 18.60 | 2 | 9.30 | 6.80 | 0.0156 |
Residual | 8.40 | 2 | 4.20 | 3.10 | 0.0962 |
UV | 12.30 | 9 | 1.40 | - | - |