Physiology and methane productivity of Methanobacterium thermaggregans.

Accumulation of carbon dioxide (CO), associated with global temperature rise, and drastically decreasing fossil fuels necessitate the development of improved renewable and sustainable energy production processes. A possible route for CO recycling is to employ autotrophic and hydrogenotrophic methanogens for CO-based biological methane (CH) production (CO-BMP). In this study, the physiology and productivity of Methanobacterium thermaggregans was investigated in fed-batch cultivation mode.