Table 2.
Operation conditions of the anoxic and oxic reactors
| Anoxic zone | Aerobic zone | total | |
|---|---|---|---|
| Volume reactor | 2.5 L | 2.5 L | 5 L | 
| Upflow velocity (mh−1) | 1.00 | 1.00 | 1.00 | 
| Flow rate (Ld−1) | 0.28 | 0.28 | 0.28 | 
| Total COD (mgL−1) | 300 | 300 | 300 | 
| HRT (h) | 24 | 24 | 24 | 
| pHinfluent | 4-8 | 4-8 | 4-8 |