用于产电纯菌研究的MFC反应器的开发

以纯菌为对象进行产电机理研究是微生物燃料电池(MFC)技术进一步提高输出功率、走向实用的重要基础之一,然而由于产电纯菌研究要求的无菌性、厌氧性较为苛刻,给此类反应器的搭建、运行造成诸多困难。基于此,设计搭建了一种可灭菌的组件式两瓶型MFC,对其各组件进行了比较研究,并考察了接种Geobacter sulfurreducens后MFC的运行情况。研究结果表明,该反应器在运行周期内可保持良好的灭菌状态;使用铁氰化钾可有效地降低阴极极化,并保持阳极室的厌氧状态;该反应器可以较好地满足MFC对纯菌研究的要求。

Development of Microbial Fuel Cell Reactor for Pure Electricigen Research

Further improvement of the microbial fuel cell(MFC) power output urges to better understand the interaction mechanism between the electricigen and the electrode.In order to accomplish this goal,pure culture study is a better approach.However,strict sterile and anaerobic requirements make such experiments difficult to carry out.Therefore,a sterile two bottle MFC was developed.The modules were compared,and the electricity generation performance of MFC inoculated with Geobacter sulfurreducens was investigated.It was shown that sterilized condition could be achieved in the two bottle MFC during operation.Using potassium ferricyanide could effectively reduce cathode polarization and maintain anaerobic condition in the anode chamber.Further applications of this MFC system should provide a fundament for pure electricigen research.