From: Energetic and biochemical valorization of cork boiling wastewater by anaerobic digestion
Parameter | CBW | AD0 | AD3 | AD6 |
---|---|---|---|---|
pH | 7.20 ± 0.10 | 8.23 ± 0.09 | 7.67 ± 0.02 | 7.52 ± 0.06 |
VFA (kg m-3) | 0.215 ± 0.023 | 0.185 ± 0.036 | 0.178 ± 0.048 | 0.137 ± 0.013 |
Total phenols (mg mL-1) | 1.20 ± 0.02 | 0.05 ± 0.00 | 0.90 ± 0.00 | 1.41 ± 0.02 |
OD (254 nm) | 43.50 ± 0.22 | 8.41 ± 0.64 | 29.08 ± 0.66 | 43.96 ± 0.00 |
DPPH inhibition (%) | 74.00 ± 0.84 | 78.90 ± 0.42 | 76.07 ± 1.56 | 80.80 ± 1.06 |
ECa50 (antiradical activity) | 7.20 ± 0.11 | 2.22 ± 0.08 | 5.90 ± 0.08 | 8.74 ± 0.06 |
Conductivity (mS cm-1) | 1.50 ± 0.10 | 4.00 ± 0.11 | 4.60 ± 0.00 | 5.40 ± 0.11 |