Table 3.
Kinetic and thermodynamic parameters for the biological agents in the anaerobic system.
| Anaerobic system | ||||
|---|---|---|---|---|
| Functional group | Kinetic parameters | |||
| qmax (mol · L−1 h−1) | Ks (mol · L−1) | kdecay (h−1) | ||
| Glucose fermenter | 0.208 | 1.44·10−3 | 0.033 | Batstone et al., 2006 |
| Anabolic reaction | 0.175 C6H12O6 + 0.2 NH3 → CH1.8O0.5N0.2 + 0.05 HCO3−+ 0.4 H2O + 0.05 H+ | |||
| Catabolic reaction | C6H12O6 + 4 H2O → 2 CH3COO−+ 2 HCO3−+ 4 H2 + 4 H+ | |||
| Hydrogenmethanogen | 0.063 | 8.65·10−4 | 0.0125 | Batstone et al., 2006 |
| Anabolic reaction | HCO3−+ 0.2 NH3 + 2.1 H2 + H+ → CH1.8O0.5N0.2 + 2.5 H2O | |||
| Catabolic reaction | 0.25 HCO3−+ H2 + 0.25 H+ → 0.25 CH4 + 0.75 H2O | |||
| Acetatemethanogen | 0.100 | 5 · 10−5 | 0.0021 | Batstone et al., 2006 |
| Anabolic reaction | 0.525 CH3COO−+ 0.2 NH3 + 0.475 H+ → CH1.8O0.5N0.2 + 0.4 H2O + 0.05 HCO3− | |||
| Catabolic reaction | CH3COO− + H2O → CH4 + HCO3− | |||
| Functional group | Thermodynamic parameters | |||
| ΔG formation (kJ/Cmole-X) | ΔG dissipation (kJ/C-mole-X) | Calculated yield (moleX/moleDonor) | ||
| Glucose fermenter | –67 | 236 | 0.656 | Heijnen et al., 1992 |
| Hydrogenmethanogen | –67 | 700 | 0.109 | von Stockar, 2014 |
| Acetatemethanogen | –67 | 500 | 0.064 | von Stockar, 2014 |