Physiology and methane productivity of Methanobacterium thermaggregans.

ABSTRACT: Accumulation of carbon dioxide (CO₂), 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 CO₂ recycling is to employ autotrophic and hydrogenotrophic methanogens for CO₂-based biological methane (CH₄) production (CO₂-BMP). In this study, the physiology and productivity of Methanobacterium thermaggregans was investigated in fed-batch cultivation mode. It is shown that M. thermaggregans can be reproducibly adapted to high agitation speeds for an improved CH₄ productivity. Moreover, inoculum size, sulfide feeding, pH, and temperature were optimized. Optimization of growth and CH_4<

SUBMITTER: Mauerhofer LM 

PROVIDER: S-EPMC6097776 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature