Table 3.
Theoretical biomass production based general elemental composition of different sources and nitrogen content of various wastewaters.
| Wastewater | Nitrogen (mg/L) | Soybean∗ (g biomass) | Microalgae (g biomass)∗∗ | PPB (g biomass)∗∗∗ |
|---|---|---|---|---|
| Weak domestic | 20 | 0.1 | 0.1 | 0.2 |
| Medium domestic | 40 | 0.1 | 0.2 | 0.3 |
| Strong domestic | 85 | 0.3 | 0.3 | 0.6 |
| Beef cattle feedlot | 63 | 0.2 | 0.2 | 0.5 |
| Dairy | 185 | 0.6 | 0.7 | 1.4 |
| Poultry feedlot | 802 | 2.7 | 3.0 | 6.0 |
| Swine feedlot | 895 | 3.0 | 3.4 | 6.7 |
| Paper mill | 11 | 9.0 | 10.2 | 20.3 |
| Winery | 110 | 0.0 | 0.0 | 0.1 |
Elemental compositions for; soybean meal (C:H1.8:O0.5:N0.2:P0.006) (Osborn, 1977); microalgae (C:O0.48:H1.83:N0.1:P0.01) (Chisti, 2007); PPB (C:H1.6:O0.4:N0.2:P0.02) (Ormerod, 1983) and ∗30% (Matassa et al., 2015), ∗∗25% (García et al., 2000), and ∗∗∗90% conversion of supplied nitrogen (Hülsen et al., 2015).