Table 1.
Comparison of physico-chemical parameters of raw SDW and treated SDW filtrates obtained after 10 days of aerobic fermentation by A. niger
| Physico-chemical parameters | Laboratory data | |
|---|---|---|
| Raw SDW (day 0) | Fermented SDW (day 10) | |
| pH | 4.6 | 5.4 |
| COD (g L−1) | 107 | 50 |
| TDS (g L−1) | 114 ± 12.8 | 89 ± 7.07 |
| TSSa (g L−1) | 8.13 ± 1.41 | 43.42 ± 1.2 |
| TN (g L−1) | 2.32 | 1.7 |
| Ashes (g L−1) | 38.5 ± 2.33 | 43.2 ± 1.94 |
| C/N | 11.8 | 11.3 |
| OD475nm | 34.5 | 25.2 |
SDW was incubated aerobically during 10 days with A. niger as explained in Methods section
TDS total dissolved solids, TSS total suspended solids, COD chemical oxygen demand, TN total nitrogen, C/N carbon/nitrogen, OD475nm optical density measured at 475 nm
aExcept for TSS that were measured on insoluble suspended solids