Wastewater source | N (mg/L) | P (mg/L) | N:P ratio (molar) |
---|---|---|---|
Domestic | 20 to 85 | 5 to 20 | 11 to 13 |
Pigs | 800 to 2300 | 50 to 320 | 12 to 17 |
Beef cattle | 63 | 14 | 10 |
Dairy cattle | 185 | 30 | 4 |
Poultry | 800 | 50 | 32 |
Coke production | 757 | 0.5 | 3000 |
Tannery | 273 | 21 | 29 |
Paper mill | 11 | 0.6 | 41 |
Textile | 90 | 18 | 11 |
Winery | 110 | 52 | 5 |
Anaerobic digestion food waste | 1600 to 1900 | 300 | – |
Olive mill | 530 | 182 | 2.9 |