Figure 1
From: A bacteria-based carbon sequestration and waste recycling system

Direct CO2 conversion by sulphur-oxidising bacteria and its application in different industries. (a) Optimised culture conditions at a laboratory scale. (b) CO2 conversion rate of sulphur-oxidising bacteria (SOB) in continuous stirred-tank reactor (CSTR). (c) A carbon cycle system proposed in petrochemical industry and (d) in the anaerobic digestion industry. Black arrows indicate the conventional system and green dotted arrows indicate the new processes.