Table 1 Estimated krapid, B0,rapid, Yrapid and kslow, B0,slow, Yslow, B0,total at different pre-treatment conditions using two-substrate model (with 95% confidence intervals).
Pre-treatment | krapid (d−1) | B0,rapid (L CH4/kgVS added) | Yrapid | kslow (d−1) | B0,slow (L CH4/kgVS added) | Yslow | B0,total (L CH4/kgVS added) |
|---|---|---|---|---|---|---|---|
Control | 0.97 ± 0.09 | 70 ± 3 | 0.13 ± 0.01 | 0.06 ± 0.01 | 94 ± 2 | 0.17 ± 0.01 | 164 ± 3 |
FNA | 0.63 ± 0.03 | 136 ± 4 | 0.25 ± 0.01 | 0.05 ± 0.01 | 124 ± 3 | 0.23 ± 0.01 | 260 ± 5 |
HP1 | 1.10 ± 0.11 | 77 ± 3 | 0.14 ± 0.01 | 0.06 ± 0.01 | 108 ± 2 | 0.20 ± 0.01 | 185 ± 4 |
HP2 | 1.13 ± 0.10 | 99 ± 3 | 0.18 ± 0.01 | 0.06 ± 0.01 | 102 ± 2 | 0.19 ± 0.01 | 201 ± 4 |
HP3 | 1.05 ± 0.08 | 95 ± 3 | 0.18 ± 0.01 | 0.06 ± 0.01 | 104 ± 2 | 0.20 ± 0.01 | 199 ± 3 |
HP4 | 0.90 ± 0.09 | 85 ± 4 | 0.16 ± 0.01 | 0.06 ± 0.01 | 108 ± 3 | 0.20 ± 0.01 | 193 ± 5 |
FNA + HP1 | 0.63 ± 0.03 | 141 ± 4 | 0.26 ± 0.01 | 0.05 ± 0.01 | 124 ± 2 | 0.23 ± 0.01 | 265 ± 4 |
FNA + HP2 | 0.53 ± 0.03 | 162 ± 5 | 0.30 ± 0.01 | 0.04 ± 0.01 | 117 ± 4 | 0.22 ± 0.01 | 279 ± 6 |
FNA + HP3 | 0.46 ± 0.02 | 185 ± 5 | 0.35 ± 0.01 | 0.04 ± 0.01 | 125 ± 4 | 0.24 ± 0.01 | 310 ± 6 |
FNA + HP4 | 0.48 ± 0.02 | 174 ± 6 | 0.33 ± 0.01 | 0.04 ± 0.01 | 122 ± 4 | 0.23 ± 0.01 | 296 ± 7 |