Table 2 Performance characteristics of Karbala WWTP.
Parameter | Inlet concentration | Outlet concentration | Removal efficiency (%) |
|---|---|---|---|
PH | 6.8–7.5 | 7–7.4 | – |
COD (mg/L) | 350–500 | 20–35 | 93 |
BOD5 (mg/L) | 150–250 | 4–10 | 97 |
TSS (mg/L) | 160–300 | 4–10 | 97 |
NO3 (mg/L) | 0–4 | 8–45 | – |
NH4+ (mg/L) | 20–28 | 0.5 | 98 |
PO4 (mg/L) | 22–28 | 0.5–3 | 93 |
H2S (mg/L) | 15–35 | 0.5 | 98 |
SO4 (mg/L) | 600–1000 | 500–600 | 45 |
Oil and grease (mg/L) | 40–60 | 1–4 | 95 |
