微生物燃料电池中高效产电菌解析  

ANALYSIS OF THE ELECTROCHEMICALLY ACTIVE BACTERIA IN MICROBIAL FUEL CELLS

作　　者：孙寓姣[1,2] 左剑恶[2] 崔龙涛[2] 党岩[2] 王勇[2] 

机构地区：[1]北京师范大学水科学研究院,北京100875 [2]清华大学环境科学与工程系,北京100084

出　　处：《太阳能学报》2010年第11期1402-1407,共6页Acta Energiae Solaris Sinica

基　　金：国家重点实验室专项基金(08K07ESPCT);环境模拟与污染控制国家重点联合实验室专项经费;国家自然科学基金(50708008)

摘　　要：以厌氧处理的淀粉工艺废水出水为基质,成功地实现了无介体MFC连续产电,同时系统中COD去除率达到70%,电池的输出电压为475mV。采用构建16S rRNA基因文库、随机测序的方法,分别对开放和闭合电路的阳极表面的微生物群落结构进行研究。结果表明:系统中出现的已知高效产电细菌只占6%(分别为地杆菌Geobacter和梭菌Clostridium)。通过对开放和闭合电路的阳极表面的微生物群落结比对,提出几类可能存在的高效产电相关细菌Alcaligenes monasteriensis,Comamonas denitrificans,Dechloromonas sp.,为高效产电细菌的研究提供了新的研究思路和理论依据。A small microbial fuel cell （MFC） was operated continuously with the substrate of effluent from an anaerobic reactor, in which the COD was removed efficiently of 70% and exported voltages were about 475mV. With 16S rRNA genomic library construction and random sequencing, the diversity of microbes on anodes surface were detected from close circuit and open circuit respectively. The results indicated that only 6% bacterial sequences are detected affiliated with the reported electrochemically active bacteria of Geobacter and Clostridium in close circuit anode. In order to detect more potential electrochemically active bacteria in MFC, community structures of two anodes bacteria in open and close circus were compared and we put forward three kinds of possible high electrochemically active bacteria of Alcaligenes monaste- riensis, Comamonas denitrificans, Dechloromonas sp. belonging to Proteobacteria β which are worthy of studying deeply in MFC.

关 键 词：微生物燃料电池(MFC) 产电细菌 电路 阳极 群落结构 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]