摘要
采用不锈钢金属丝阳极构建了管状单室无质子交换膜空气阴极微生物燃料电池(MFC),并以葡萄糖为唯一电子供体,研究了该MFC的性能.分别以含葡萄糖、葡萄糖+硝酸钾、葡萄糖+硫酸钠、葡萄糖+氯化铁的培养液注入MFC,分析和检测MFC外接电阻上的电压与各底物的起止浓度.结果表明,MFC室内的电子受体氧化还原势越高,对固体电极接受和传输电子的影响越大,固体电极接受电子的能力介于NO3-和SO42-之间,接近Fe3+.
An air-cathode tube-form single chamber microbial fuel cell （MFC） without proton exchange membrane was established by using stainless steel mesh as the anode and glucose as the sole substrate （fuel） , and its performance was studied. Culture medium solutions containing glucose, glucose and nitrate, glucose and sulfate or glucose and iron chloride were individually added into the anodic chamber in corresponding treatments. Voltage output of the MFC and the initial and terminal concentrations of each substrate were monitored. Results demonstrate that higher oxidation and reduction potential of the electron acceptor in MFC will greatly influence electron acceptance and transmission by the anode. Data from this study suggest that the affinity to electrons for the stainless steel anode in an MFC is probably between that of nitrate and sulfate, close to ferric iron.
出处
《环境科学研究》
EI
CAS
CSCD
北大核心
2010年第1期90-93,共4页
Research of Environmental Sciences
基金
国家水体污染控制与治理科技重大专项(2008ZX07316-003)
关键词
阳极
微生物燃料电池
电子受体
竞争
废水处理
anode
microbial fuel cell
electron acceptor
competition
wastewater treatment
