Table 1 Effect of OLs on stability parameters of digesters
From: Effect of inoculum type and organic loading on biogas production of sunflower meal and wheat straw
| Reactors | pH | VFA (mg L−1) | TA (mg L− 1) | VFA/TA | ||||
|---|---|---|---|---|---|---|---|---|
| Initial | Final | Initial | Final | Initial | Final | Initial | Final | |
| SM-OL2 | 7.1 | 6.9 | 390 | 598 | 1011 | 1750 | 0.38 | 0.34 |
| SM-OL6 | 7.3 | 6.8 | 370 | 688 | 1014 | 2128 | 0.36 | 0.32 |
| SM-OL10 | 7.3 | 6.2 | 331 | 1422 | 1141 | 3610 | 0.29 | 0.39 |
| SM-OL14 | 7.2 | 3.9 | 389 | 2150 | 1112 | 1924 | 0.34 | 1.11 |
| WS-OL2 | 7.4 | 7.1 | 289 | 360 | 1014 | 1155 | 0.28 | 0.31 |
| WS-OL6 | 7.2 | 6.9 | 280 | 712 | 1014 | 1955 | 0.27 | 0.36 |
| WS-OL10 | 7.4 | 6.3 | 261 | 958 | 1024 | 2405 | 0.25 | 0.39 |
| WS-OL14 | 7.3 | 4.6 | 270 | 2055 | 988 | 1611 | 0.27 | 1.27 |