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Reactor conditions and effluent concentrations during the experimental period. Average values and standard deviation (SD). The influent (synthetic wastewater) contained 314 mg N L−1 as ammonium. HRT = hydraulic retention time; DO = dissolved oxygen.
| Flow (L h−1) | HRT (h) | Temp (°C) | pH | DO (mg L−1) | NH4+ (mg N L−1) | NO2− (mg N L−1) | NO3− (mg N L−1) | N removal | |
|---|---|---|---|---|---|---|---|---|---|
| Average | 1.2 | 6.3 | 28.3 | 7.8 | 3.6 | 71 | 14 | 25 | 66% |
| S.D. | 0.2 | 0.7 | 2.9 | 0.3 | 0.5 | 40 | 13 | 12 | 14% |
