Table 5.
Denitrification rates during anoxic react phase for treatment of slaughterhouse wastewater in SBR.
| Initial NH4
+-N (mg/L as N) |
Initial SCOD (mg/L) |
React period combination (Aerobic/Anoxic) | Avg. anoxic SCOD utilization rate (q
SCOD) (mg SCOD/gm MLVSS. hr) |
Specific denitrification rate (q DN) (mg N/gm MLVSS. hr) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.0 hr | 2.0 hr | 3.0 hr | 4.0 hr | 5.0 hr | Avg. (3.0 hrly) |
Avg. (4.0 hrly) |
Avg. (5.0 hrly) |
||||
| 185.24 | 1028.55 | (4+4) | 26.25 | 4.49 | 5.57 | 5.85 | 3.89 | — | 5.30 | 4.95 | — |
| 173.88 | 1023.22 | (5+3) | 34.87 | 4.27 | 5.51 | 4.16 | — | — | 4.64 | — | — |
| 176.85 | 1042.52 | (3+5) | 38.15 | 4.57 | 5.55 | 6.16 | 7.24 | 6.23 | 5.42 | 5.88 | 5.95 |