Table 2.
Values of OUR and α- and β-factors.
| Aeration Method | Air Flowrate (LPM) | OUR (mg/s) | Maximum DO Achieved (mg/l) |
Alpha Factor | Beta Factor | |
|---|---|---|---|---|---|---|
| Clean water | Wastewater process | |||||
| MNB aeration, Wastewater | 0.5 | 0.0042 | 13.12 | 12.46 | 0.965 | 0.949 |
| MNB aeration, Wastewater | 2.5 | 0.0035 | 11.3 | 9.5 | 0.83 | 0.84 |
| MNB aeration, Wastewater | 5 | 0.002 | 11.3 | 9.4 | 0.834 | 0.831 |
| Diffuser aeration, Wastewater | 0.5 | – | ||||
| Diffuser aeration, Wastewater | 2.5 | 0.0028 | 9.1 | 8.2 | 0.894 | 0.90 |
| Diffuser aeration, Wastewater | 5 | 0.0031 | 9.3 | 8.43 | 0.947 | 0.906 |