| 颗粒活性炭改进阳极提升微生物燃料电池性能的研究 |
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| 引用本文： | 李凤祥,周启星,Baikun Li.颗粒活性炭改进阳极提升微生物燃料电池性能的研究[J].应用基础与工程科学学报,2010,18(6). |
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| 作者姓名： | 李凤祥 周启星 Baikun Li |
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| 作者单位： | 南开大学环境科学与工程学院环境污染过程与基准教育部重点实验室; |
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| 基金项目： | 863重点项目，美国University of Connecticut Large Research Grant资助项目 |
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| 摘 要： | 微生物燃料电池(MFCs)的阳极是产电菌降解有机污染物并产电的场所,是微生物燃料电池性能提升的限制性因素之一,本研究通过改进阳极提升微生物燃料电池产电性能.试验采用了两种类型的微生物燃料电池,用作对比的常规炭布阳极微生物燃料电池(Carbon-MFCs)和用颗粒活性炭(GAC)改进阳极的微生物燃料电池(GAC-MFCs),对比实验结果表明用GAC改进阳极可以有效提高微生物燃料电池功率输出:Carbon-MFCs在一个星期驯化后,输出电压稳定在300mV,最大功率密度到达200mW/m2;GAC-MFCs需要较长驯化期,在一个星期驯化后,输出电压100mV,但在2000h后,输出电压稳定在380mV,阳极的改进使输出电压提高26.7%,最大输出功率密度达到560mW/m2,提高了180%;颗粒活性炭的巨大比表面积增加了生物膜载体面积,提高了产电菌和协同参与产电菌总量,使库伦效率提高了3.4倍;颗粒活性炭的物理和电学特性使电池内阻降低38%.结果显示:使用颗粒活性炭作阳极可有效提高微生物燃料电池功率输出.
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| 关 键 词： | 颗粒活性炭 生物产电 微生物燃料电池 废水处理 |
Increased Performance of Microbial Fuel Cells Using Granular Activated Carbon Anodes |
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| LI Fengxiang,ZHOU Qixing,Baikun Li.Increased Performance of Microbial Fuel Cells Using Granular Activated Carbon Anodes[J].Journal of Basic Science and Engineering,2010,18(6). |
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| Authors: | LI Fengxiang ZHOU Qixing Baikun Li |
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| Institution: | LI Fengxiang1,ZHOU Qixing1,Baikun Li2(1.Key Laboratory of Pollution Processes and Environmental Criteria at Ministry of Education,College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China,2.Department of Civil and Environmental Engineering,University of Connecticut,USA,06269) |
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| Abstract: | The objective of this study is to improve Microbial Fuel Cells(MFCs)power output by renovating anode with granular activated carbon(GAC),since anode is one of the key factors for power output improvement,where microorganisms oxidize organic pollutants and generate power.The comparisons of improvement effect were made between conventional MFCs and modified MFCs.The conventional MFCs with carbon cloth anodes(Carbon-MFCs)was used as reference and the other type of MFCs was modified MFCs with GAC anodes(GAC-MFC... |
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| Keywords: | granular activated carbon microbial power generation microbial fuel cell wastewater treatment |
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