【摘要】 为探究不同接种物来源下MEC产气效能与阳极膜形成的关系,本实验对云南不同海拔的四地淤泥接种物在单室反应器下的运行效能和阳极微生物群落结构进行了研究。结果表明,来自高海拔的纳帕海草地淤泥作为接种物时,微生物电解池的总体运行效能优于其他三地,表现为较高的产气性能,平均日产气量达到177.5 mL,峰值电流达到-33.99 mA,阳极高频电阻为4.0Ω。16srRNA测序结果显示四种反应器的阳极微生物群落之间显示出巨大差异,高海拔的纳帕海草地淤泥接种物的生物多样性优于其他三地,其优势菌群含有约20%的厚壁菌门(Firmicutes)和30%的变形菌门(Proteobacteria)。更多还原

【Abstract】 To investigate the contribution of inoculum to the performance of MEC and the formation of anodic biofilms,the analysis of operating efficiency and microbial community of MEC under different inoculum sources was conducted.The MEC-ZD(Napahai grassland silt MECs) was shown to be in its excellent gas production performance,with an average daily gas production of 177.5mL/m~3/day.The current showed a significant ripple,with a peak of-33.99 mA/m~2,accompanied by a high-frequency anode resistance of 4.0 Ω.The biodiversity of the MEC-ZD inoculum exceeded that of the other three inocula.The dominant anode microorganisms consisted of approximately 20% Firmicutes and 30% Proteobacteria,and both two electrogenic bacteria had excellent gas-producing properties.更多还原