Table 2. Parameters of the model of in vitro methanogenesis.
The value reported μmax for each methanogen is the mean value obtained from three heat flux-time curves.
| Parameter | Definition | Value | ||
|---|---|---|---|---|
| kLa (h-1) | Liquid–gas transfer constant | 8.33 | ||
| (M/bar) | Henry’s law coefficient of carbon dioxide | 0.0246 | ||
| kd (h-1) | Death cell rate constant | 8.33x10-4 | ||
| M. smithii | M. ruminantium | M. formicium | ||
| Ks (mol/L) | Affinity constant | 0.028 | 0.042 | 0.011 |
| μmax (h-1) | Maximum specific growth rate constant | 0.12 | 0.07 | 0.046 |
| Y (mol biomass /mol H2) | Microbial biomass yield factor | 0.006 | 0.006 | 0.007 |