Table 5.
The optimal conditions for maximum reduction rate of TPH in the oily sludge sample at Shiraz oil refinery
| Variables | Optimal level |
|---|---|
| H2O2 to sample mass ratio |
15 |
| H2O2 to Fe(II) molar ratio |
10 |
| Reaction time (hr) |
1 |
| pH | 5 |
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