摘要
将双室微生物燃料电池(MFC)置于不同方向(与阳极垂直、平行)、不同强度(0,100,200,300mT)的稳恒磁场下,考察阳极加载稳恒磁场对MFC产电特性的影响。结果发现,一定强度的磁场能够强化MFC的产电,但不同磁场方向和强度对MFC的影响有差异。当磁场方向与阳极垂直时,产电效果较好,MFC的最大输出功率更高。MFC在加载200mT磁场强度时,性能达到最佳,其最大功率密度为1.09 W/m2。一定强度的磁场还能够提高MFC的库仑效率和COD去除率,并且加速微生物对COD的降解。
Two-chambered microbial fuel cells （MFC） were exposed under static magnetic field （SMF） of different directions （vertical and parallel to the anode） and field strengths （0, 100, 200, and 300 roT） to investigate the influence of SMF loaded anode on the performance of MFC. The results showed that SMF with a certain intensity improved the MFC electricity production, but the effect changed with the direction and intensity of the SMF applied. When the magnetic field direction was vertical to the anode, the electric- ity production was improved and on higher maximum power density was obtained. The electricity produc- tion performance field strength of for 200 mT was the best among MFCs loaded with SMF of different field strengths, and the maximum power density was 1.09 W/m2. The presence of certain intensity of magnetic field also improved the coulombic and COD removal efficiency of MFC, and accelerated the COD degrada- tion by microorganisms.
出处
《化学世界》
CAS
CSCD
北大核心
2014年第2期92-97,105,共7页
Chemical World
基金
国家自然科学基金项目(51078144)
关键词
微生物燃料电池
稳恒磁场
产电
库仑效率
COD去除率
microbial fuel cell
static magnetic field
electricity production
coulombic efficiency
COD re moval efficiency
