Research Article
Recovery of Bacillus licheniformis Alkaline Protease from Supernatant of Fermented Wastewater Sludge Using Ultrafiltration and Its Characterization
Table 3
Maximum values of protease activity, soluble protein, total solids, and suspended solids at optimum TMP and feed flux.
| | Parameters | Supernatant | Retentate | | Before UF | TMP (90 kPa) | Feed flux (714 L/h/m2) |
| | Protease (IU/mL) | 15 ± 0.72 | 69 ± 3.4 | 67.3 ± 3.3 | | Soluble protein (mg/mL) | 1.7 ± 0.08 | 7.8 ± 0.39 | 7.6 ± 0.37 | | Total solids (g/L) | 12 ± 0.6 | 55.2 ± 2.75 (9.9 g/180 mL | 54 ± 2.7 (9.72 g/180 mL) | | Suspended solids (g/L) | 0.6 ± 0.03 | 2.7 ± 0.13 (0.48 g/180 mL) | 2.52 ± 0.12 (0.45 g/180 mL |
|
|
