Table 1

Rates and potential energy gain from AOM with different electron acceptors.

ReactionRate (μmole/year/cm3sed)Potential energy gain (J/year/cm3sed)
SO42- + CH4 → HCO3- + HS- + H2O520.7
CH4 + 4MnO2 + 7H+ → HCO3- + 4Mn2+ + 5H2O147.8
CH4 + 8 Fe(OH)3 +15H+ → HCO3- + 8Fe2+ +21H2O61.6