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Effect of temperature on the performance of microbial fuel cells

机译：温度对微生物燃料电池性能的影响

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摘要

Single and double chamber microbial fuel cells (MFCs) were tested in batch mode at different temperatures ranging from 4 to 35 ℃; results were analysed in terms of efficiency in soluble organic matter removal and capability of energy generation. Brewery wastewater diluted in domestic wastewater (initial soluble chemical oxygen demand of 1200 and 492 mg L~(-1) of volatile suspended solids) was the source of carbon and inoculum for the experiments. Control reactors (sealed container with support for biofilm formation) as well as baseline reactors (sealed container with no support) were run in parallel to the MFCs at each temperature to assess the differences between water treatment including electrochemical processes and conventional anaerobic digestion (in the presence of a biofilm, or by planktonic cells). MFCs showed improvements regarding rate and extent of COD removal in comparison to control and baseline reactors at low temperatures (4,8 and 15 ℃), whilst differences became negligible at higher temperatures (20,25, 30 and 35 ℃). Temperature was a crucial factor in the yield of MFCs both, for COD removal and electricity production, with results that ranged from 58% final COD removal and maximum power of 15.1 mW m~(-3) reactor (8.1 mW m~(-2) cathode) during polarization at 4 ℃, to 94% final COD removal and maximum power of 174.0 mWm~(-3) reactor (92.8 mWm~(-2) cathode) at 35 °C for single chamber MFCs with carbon cloth-based cathodes. Bioelectrochemical processes in these MFCs were found to have a temperature coefficient, Q10 of 1.6. A membrane-based cathode configuration was tested and gave promising results at 4 ℃, where a maximum power output of 294.6 mW m~(-3) reactor (98.1 mW m~(-2) cathode) was obtained during polarization and a maximum Coulombic efficiency (Y_Q) of 25% was achieved. This exceeded the performance at 35 ℃ with cloth-based cathodes (174.0 mWrn~(-3); V_Q 1.76%).
机译：单室和双室微生物燃料电池（MFCs）在4至35℃的不同温度下以批处理模式进行了测试；根据去除可溶性有机物的效率和产生能量的能力来分析结果。在生活废水中稀释的啤酒废水（初始可溶性化学需氧量为1200和492 mg L〜（-1）的挥发性悬浮固体）是实验的碳源和接种物。在每个温度下，将对照反应器（带有支持生物膜形成的密封容器）和基线反应器（没有支持的密封容器）与MFC并联运行，以评估包括电化学过程在内的水处理与常规厌氧消化（在是否存在生物膜或浮游细胞）。与低温（4,8和15℃）的对照反应器和基线反应器相比，MFCs在COD去除率和程度方面均有改进，而在较高温度（20,25、30和35℃）下，差异可以忽略不计。温度对于MFC的产率和生产过程中的MFC都是至关重要的因素，其最终COD去除率为58％，反应器的最大功率为15.1 mW m〜（-3）（8.1 mW m〜（-2 ）阴极）在4℃极化期间，最终COD去除率达到94％，对于碳纤维基单腔MFC，在35°C时最大功率为174.0 mWm〜（-3）反应器（92.8 mWm〜（-2）阴极）阴极。发现这些MFC中的生物电化学过程的温度系数Q10为1.6。测试了基于膜的阴极配置，并在4℃下给出了令人鼓舞的结果，其中极化过程中获得的最大功率输出为294.6 mW m〜（-3）反应器（98.1 mW m〜（-2）阴极），最大库仑效率（Y_Q）达到25％。这超过了布基阴极在35℃下的性能（174.0 mWrn〜（-3）； V_Q 1.76％）。

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  • 来源
    《Fuel》 |2010年第12期|p.3985-3994|共10页
  • 作者

    A. Larrosa-Guerrero; K. Scott; I.M. Head; F. Mateo; A. Ginesta; C. Godinez;

  • 作者单位

    Departamento de Ingenieria Quimica y Ambiental, Universidad Politecnica de Cartagena, 30200 Cartagena, Spain,School of Chemical Engineering and Advanced Materials, Newcastle University, NE1 7RU Newcastle upon Tyne, UK;

    rnSchool of Chemical Engineering and Advanced Materials, Newcastle University, NE1 7RU Newcastle upon Tyne, UK;

    rnSchool of Civil Engineering, Newcastle University, NE1 7RU Newcastle upon Tyne, UK;

    rnDepartamento de Ingenieria Quimica y Ambiental, Universidad Politecnica de Cartagena, 30200 Cartagena, Spain;

    rnDepartamento de Ingenieria Quimica y Ambiental, Universidad Politecnica de Cartagena, 30200 Cartagena, Spain;

    rnDepartamento de Ingenieria Quimica y Ambiental, Universidad Politecnica de Cartagena, 30200 Cartagena, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    microbial fuel cell; anaerobic digestion; temperature; fouling;

    机译：微生物燃料电池厌氧消化;温度;结垢;

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