biomethane

Effects of H2 : CO2 ratio and H2 supply fluctuation on methane content and microbial community composition during in-situ biological biogas upgrading

Background: Commercial biogas upgrading facilities are expensive and consume energy. Biological biogas upgrading may serve as a low-cost approach because it can be easily integrated with existing facilities at biogas plants. The microbial communities …

Feeding frequency influences process performance and microbial community composition in anaerobic digesters treating steam exploded food waste

In anaerobic digestion, studies of feeding frequency have produced conflicting results. Hence, the effect of feeding frequency on process variables and microbial community structure was investigated by comparing a laboratory-scale digester fed steam …

Microbial community characterization during anaerobic digestion of Scenedesmus spp. under mesophilic and thermophilic conditions

Microbial communities were thoroughly characterized in a mesophilic anaerobic membrane bioreactor (AnMBR) and a thermophilic continuous stirred tank reactor (CSTR), which were both treating recalcitrant microalgal biomass dominated by Scenedesmus. …

The effect of temperature and retention time on methane production and microbial community composition in staged anaerobic digesters fed with food waste