For this reason, only AD of the pentose-rich stream, which has a higher content of COD and requires 98 hours residence time to reach 96% of the maximum biogas production with a yield of 0.116 gCH4/gCOD, was included in the final simulations.
It opens new perspectives for a better substrate utilization, resulting in increased hydrogen production rates and/or yield [ 45]. a Maximum biogas production rate.
a Maximum biogas production rate.
The maximum biogas production of 623 mL/g VS was observed at 0.06%.
The optimal pH was defined as the value corresponding to the maximum biogas production rate.
However, the maximum biogas production rate (0.42 L of biogas /h) was significantly lower than that for the other three pure strain cultures (Table 3).
In single enzyme treatment with lipase, biogas production followed same pattern across all samples except the samples with 0.02%, 0.04% and 0.06% lipase wherein the maximum biogas production was faster.
In single enzyme treatment with protease, biogas production followed same pattern across all samples except the samples with 0.08% and 0.5% protease wherein the maximum biogas production was faster.
Maximum VS reduction and biogas yield was estimated 44.83% and 0.420 l·g-1 VSadded-1d-1.
Specific biogas yield [mL/(gVS*d)].
