底物浓度和缓冲液浓度对MFC性能影响研究  

Effects of Inlet Substrate and Buffer Concentrations on MFC Performance

作　　者：刘春梅[1] 刘磊[2] 徐斌[1] 刘建新[1] 

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003 [2]中色科技股份有限公司,河南洛阳471001

出　　处：《环境科学与技术》2015年第2期48-51,共4页Environmental Science & Technology

基　　金：河南科技大学博士启动基金

摘　　要：实验研究了阳极室进口底物浓度和缓冲溶液浓度对碳刷阳极微生物燃料电池产电性能的影响,并利用循环伏安法考察了不同条件下阳极生物膜的电化学活性。结果表明,电池的功率密度随进口底物浓度的增加而增大;在进口底物浓度为500 mg COD/L时,其达到饱和。随着缓冲液浓度的增加,电池的功率密度增大,这是由于缓冲液不仅维持了阳极室及阳极生物膜的p H,而且增强了阳极电解液的离子强度。循环伏安测试结果进一步证实了不同条件下电池的产电性能。Effects of inlet substrate and buffer concentration on the performance of microbial fuel cell （MFC） with graphite fiber brush as anodes, and the electrochemical activities of anodic biofilm by the method of cyclic voltammetry were studied. Results showed that with the increase in the inlet substrate concentration, the power density of MFC increased. When the inlet substrate concentration was 500 mg COD/L, the maximum power density was saturated. The higher buffer concentration, the power density of MFC was larger. This was because that buffer could not only maintain the pH of anodic chamber and biofilm, but also increase the ionic strength. The cyclic voltammetry results further confirmed the performance of MFC under the different conditions.

关 键 词：微生物燃料电池 底物浓度 缓冲液浓度 循环伏安法 电化学活性 

分 类 号：TK6[动力工程及工程热物理—生物能]