Archaea / 2013 / Article / Fig 6

Research Article

A Single-Culture Bioprocess of Methanothermobacter thermautotrophicus to Upgrade Digester Biogas by CO2-to-CH4 Conversion with H2

Figure 6

Microscopy view of the M. thermautotrophicus culture. The filamentous morphology of the methanogens remained vastly abundant; however, small microbial contaminants were observed. The bar is equal to 50 μm.