Devasahayam Mercy, Masih Sam A
Centre for Transgenic Studies, Sam Higginbottom Institute of Agriculture, Technology and Sciences (SHIATS), Naini, Allahabad 211007, India.
Indian J Exp Biol. 2012 Jun;50(6):430-8.
Microbial fuel cells (MFCs) convert biomass into electricity by the metabolic activity of microorganisms and are also used for remediation and water treatment. Power output was compared for a dual chambered membrane MFC using either E. coli or two Yamuna river samples, Yamuna (before the Sangam region)--slow flow (sample 1) and Sangam region--fast flow (sample 2). E. coli and the two river water samples 1 and 2 gave a maximum voltage of 779, 463 and 415 mV respectively. Using E. coli the maximum power density obtained with a 100 omega resistor was 220.66 mW/cm2 and the highest power generated 6068.41 mW. The results demonstrate E. coli, river sample 1 and river sample 2 have a comparable coulombic efficiency of 85.2, 71 and 77% respectively when using 0.4% sucrose as substrate. The decrease in chemical oxidative demand of all river water samples using MFC technology demonstrates efficient remediation of inland water.
微生物燃料电池（MFCs）通过微生物的代谢活动将生物质转化为电能，还用于修复和水处理。对使用大肠杆菌或两个亚穆纳河样本（亚穆纳河（在三河汇流区之前）——缓流（样本1）和三河汇流区——急流（样本2））的双室膜MFC的功率输出进行了比较。大肠杆菌以及两个河水样本1和2分别产生的最大电压为779、463和415毫伏。使用大肠杆菌时，在100欧姆电阻下获得的最大功率密度为220.66毫瓦/平方厘米，产生的最高功率为6068.41毫瓦。结果表明，当使用0.4%蔗糖作为底物时，大肠杆菌、河水样本1和河水样本2的库仑效率分别为85.2%、71%和77%，具有可比性。使用MFC技术后，所有河水样本的化学需氧量降低，表明对内陆水体进行了有效修复。
