anaerobic digester metagenome Targeted loci

Biogas is a renewable energy source than can be generated from biomass via anaerobic digestion. A complex microbial consortium carries out the process, of which the feedstock composition is of importance for the microbial performance. The aim of this study was to investigate the microbial structure of co-digestion of food waste and cow manure under meso- and thermophilic temperatures. The microbial structure of the co-digestion process was further compared to digestion of food waste alone, to determine how the co-digestion process influences the microbial communities. All digestion processes were carried out in continuous stirred tank reactors (CSTRs) with a working volume of 6L.

沼气是一种可再生能源，可通过厌氧消化（anaerobic digestion）工艺从生物质中制备得到。该过程由复杂的微生物群落（microbial consortium）驱动，原料组成对微生物的代谢性能至关重要。本研究旨在探究中温与高温条件下，食物残渣与牛粪共厌氧消化过程中的微生物群落结构。研究进一步将共厌氧消化的微生物群落结构与单一食物残渣厌氧消化的群落结构进行对比，以明确共消化工艺对微生物群落的影响机制。所有厌氧消化实验均在有效容积为6升的连续搅拌釜式反应器（CSTRs）中完成。