Table 2.
Characteristics of the whole, liquid and solid digestates
| AD effluent | Liquid digestate | Solid digestate | |
|---|---|---|---|
| Total solids (%) | 6.01 ± 0.13 | 1.83 ± 0.01 | 30.60 ± 2.13 |
| Volatile solids (% TS) | 77.63 ± 0.44 | NMa | 89.18 ± 0.29 |
| COD (mg/L) | 41950 ± 4450 | 17750 ± 354 | NM |
| Carbon (% TS) | 42.35 ± 0.54 | NM | 41.97 ± 0.98 |
| Nitrogen (% TS) | 1.48 ± 0.18 | NM | 1.40 ± 0.02 |
| Total phosphorus (mg/L) | 2217.5 ± 12.5 | 810.0 ± 7.1 | NM |
| Total nitrogen (mg/L) | 3075 ± 175 | 1900 ± 71 | NM |
| Cellulose (% TS) | 27.35 ± 0.51 | NM | 26.52 ± 0.71 |
| Xylan (% TS) | 13.82 ± 0.40 | NM | 13.31 ± 0.65 |
| Lignin (% TS) | 31.08 ± 0.76 | NM | 30.31 ± 0.70 |
| pH (20 °C) | 7.18 | 7.56 | NM |
Data are the average of three replicates with standard deviation
aNM stands for not measured. These NM numbers can be calculated from data of other two streams