Open Access
Table 2
Evolution of biogas production.
| Gross biogas production (L) | Biogas volume (L) per kg substrate | Digestion time or hydraulic residence time (day) | ||
|---|---|---|---|---|
| Cow purse | B1 (1/1) | 1381 | 92 | 42 |
| B2 (1/2) | 1719 | 171 | 42 | |
| B3 (1/3) | 1316 | 175 | 42 | |
| Poultry manure | F1 (1/3) | 414 | 55.2 | 25 |
| F2 (1/4) | 341 | 45 | 25 | |
| F3 (1/5) | 265 | 35 | 25 | |
| Mixed | BF1 (1/1) | 1051 | 70 | 40 |
| BF2 (1/3) | 1347 | 179 | 40 | |
| BF3 (1/5) | 1228 | 245 | 40 | |
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