Table 2 Effect of operational parameters on volatile fatty acids production
From: Tequila vinasses acidogenesis in a UASB reactor with Clostridium predominance
HRT (h) | Acetica (mg L−1) | Propionica (mg L−1) | Butyrica (mg L−1) | Valerica (mg L−1) | Isovalerica (mg L−1) |
|---|---|---|---|---|---|
6 | 921.37 ± 18.62 (12) | 783.03 ± 18.92 (12) | 1,460.81 ± 19.09 (12) | 375.78 ± 12.32 (12) | 575.13 ± 21.46 (12) |
12 | 866.94 ± 12.00 (29) | 702.55 ± 12.19 (29) | 1,131.95 ± 12.31 (29) | 367.74 ± 7.94 (29) | 536.30 ± 13.83 (29) |
24 | 629.38 ± 23.95 (11) | 453.61 ± 24.32 (11) | 898.34 ± 24.56 (24) | 265.73 ± 15.85 (11) | 318.63 ± 27.60 (11) |
36 | 593.57 ± 26.70 (5) | 434.07 ± 27.12 (5) | 722.87 ± 27.38 (5) | 222.63 ± 17.67 (5) | 211.95 ± 30.77 (5) |
OLR (g COD L−1 d−1) | |||||
5 | 700.11 ± 10.58 (31) | 515.23 ± 10.75 (31) | 970.73 ± 10.85 (31) | 319.32 ± 7.00 (31) | 421.89 ± 12.20 (31) |
10 | 716.13 ± 29.65 (4) | 560.87 ± 30.12 (4) | 1,038.39 ± 30.40 (4) | 313.63 ± 19.62 (4) | 393.10 ± 34.17 (4) |
15 | 873.36 ± 29.32 (7) | 752.59 ± 29.78 (7) | 1,123.09 ± 30.06 (7) | 342.90 ± 19.40 (7) | 588.47 ± 33.79 (7) |
20 | 725.39 ± 20.51 (9) | 587.44 ± 20.82 (9) | 1,004.84 ± 21.02 (9) | 276.83 ± 13.57 (9) | 361.65 ± 23.63 (9) |
30 | 749.08 ± 25.43 (6) | 550.45 ± 25.83 (6) | 1,130.41 ± 26.07 (6) | 287.18 ± 16.83 (6) | 287.40 ± 29.30 (6) |