Table 2.
Influent, effluent and operational characteristics of HySAF pilot plant in Rishikesh, India used for validation. Value range provided where present in literature51.
| Parameter | Unit | 0.5 mg/L DO regime | 4.5 mg/L DO regime | ||
|---|---|---|---|---|---|
| Influent | Effluent | Influent | Effluent | ||
| pH | – | 7.2 ± 0.2 | 7.2 ± 0.2 | ||
| Temperature | °C | 26.5 ± 1.5 | 23 ± 2.0 | ||
| Chemical oxygen demand (COD) | mg/L | 455.6 ± 37.1 | 85.0 | 440.4 ± 25.7 | 25.5 |
| Biochemical oxygen demand (BOD) | mg/L | 232.8 ± 29.8 | 46.0 | 221.6 ± 18.4 | 9.0 |
| Total suspended solids (TSS) | mg/L | 316.6 ± 34.7 | 58.0 | 262.9 ± 27.6 | 15.0 |
| Ammonia (NH3) | mg/L | 40.8 ± 7.9 | 32.8 ± 14.3 | 34.5 ± 9.6 | 0.2 ± 0.2 |
| Total Kjeldahl nitrogen (TKN) | mg/L | 48.6 ± 7.6 | 35.6 | 42.5 ± 9.6 | 1.3 |
| Total nitrogen (TN) | mg/L | 50.7 ± 8.6 | 43.6 | 45.9 ± 11.6 | 14.2 |
| Hydraulic retention time (HRT) | h | 11.1 | 11.1 | ||
| Solids retention time (SRT) | days | 8 | 22 | ||
| Bulk dissolved oxygen (DO) | mg/L | ~ 0.5 | ~ 4.5 | ||
| Mixed liquor suspended solids (MLSS) | mg/L | 2000 ± 200 | 2000 ± 200 | ||
| (RAS) | x Q | 2.5 | 3.0 | ||