Parameter | Raw vinasse | After pre-treatment | After bioprocessing | ||
---|---|---|---|---|---|
25% pre-treated | 50% pre-treated | 25% pre-treated | 50% pre-treated | ||
pH | 3.5 ± 0.5 | 4.0 ± 0.5 | 4.0 ± 0.5 | 8.2 ± 0.5 | 8.1 ± 0.5 |
BOD5 (mg/l) | 78170 ± 120 | 8467 ± 35 | 15275 ± 38 | 1800 ± 27 | 2250 ± 45 |
COD (mg/l) | 90837 ± 45 | 13950 ± 84 | 23134 ± 62 | 2690 ± 17 | 3850 ± 27 |
Salinity (mS/cm) | 28.5 ± 0.4 | 7.2 ± 0.2 | 13.5 ± 0.5 | 415 ± 11 | 445 ± 20 |
Total organic carbon (mg/l) | 16540 ± 35 | 2764 ± 35 | 6860 ± 54 | 305 ± 29 | 359 ± 43 |
Total carbohydrate (mg/l) | 112581 ± 125 | 22637 ± 87 | 32935 ± 71 | 409.5 ± 25.5 | 604.5 ± 55 |
Total Kjeldahl nitrogen (mg/l) | 471 ± 15 | 97 ± 18 | 175.5 ± 22 | 14 ± 1.5 | 17 ± 2 |
Phosphate (mg/l) | 2875 ± 10 | 468 ± 31 | 938 ± 91 | 154 ± 12 | 195 ± 9 |
Total polyphenolic compounds (mg/l) | 667 ± 10 | 21 ± 0.5 | 48 ± 1.5 | 16 ± 2 | 39 ± 5 |