| 沉降时间(min) | COD含量(mg/L) | COD去除率(%) |
| 10 | 129 | 18.35 |
| 20 | 79 | 50.00 |
| 30 | 61 | 61.39 |
| 40 | 59 | 62.66 |
| 50 | 56 | 64.56 |
| 60 | 58 | 63.29 |
| 70 | 58 | 63.29 |
| 80 | 57 | 63.92 |
| 90 | 55 | 65.19 |
| 100 | 59 | 62.66 |
| 110 | 56 | 64.56 |
| 120 | 57 | 63.92 |