Table 3 Nitrification and denitrification rates and TN removal efficiencies of both SF1 and SF2
| WWTP | Influent COD:N ratio (g COD g−1 N) |
Nitrification rate (g NH4+-N g− 1 VSS d− 1) |
Denitrification rate (g NO3−-N g− 1 VSS d− 1) | TN removal (%) |
|---|---|---|---|---|
| SF1 | 4:1 | 0.55 ± 0.02 | 0.047 ± 0.003 | 48 ± 10 |
| SF2 | 10:1 | 1.23 ± 0.15 | 0.12 ± 0.03 | 59 ± 2 |