Table 1 Summary of the reactor performances at steady state before (phase I, 0 to 50 days) and after (phase II, 61 to 112 days) temperature disturbance
Parameter | A b | A a | B b | B a | C b | C a |
|---|---|---|---|---|---|---|
Methane yield (mLCH4/gVS) | 194 ± 7.3 | 220 ± 17.5 | 189 ± 14.5 | 213 ± 11.7 | 195 ± 6.9 | 214 ± 13.1 |
pH | 7.50 ± 0.06 | 7.64 ± 0.02 | 7.51 ± 0.04 | 7.66 ± 0.01 | 7.52 ± 0.04 | 7.60 ± 0.02 |
Total VFAs(mM) | 25.5 ± 3.9 | 3.3 ± 0.9 | 24.9 ± 1.7 | 5.3 ± 0.6 | 21.1 ± 1.9 | 7.8 ± 1.2 |