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首页> 外文期刊>Environmental Science & Technology >Electricity Production Coupled to Ammonium in a Microbial Fuel Cell
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Electricity Production Coupled to Ammonium in a Microbial Fuel Cell

机译：微生物燃料电池中与氨耦合的发电

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摘要

The production of electricity from ammonium was examined using a rotating-cathode microbial fuel cell (MFC). The addition of ammonium chloride, ammonium sulfate, or ammonium phosphate (monobasic) resulted in electricity generation, while adding sodium chloride, nitrate, or nitrite did not cause any increase in current production. The peak current increased with increasing amount of ammonium addition up to 62.3 mM of ammonium chloride, suggesting that ammonium was involved in electricity generation either directly as the anodic fuel or indirectly as substrates for nitrifiers to produce organic compounds for heterotrophs. Adding nitrate or nitrite with ammonium increased current production compared to solely ammonium addition. Using 16S rRNA-linked molecular analyses, we found ammonium-oxidizing bacteria and denitrifying bacteria on both the anode and cathode electrodes, whereas no anammox bacteria were detected. The dominant ammonium-oxidizing bacteria were closely related to Nitrosomonas europaea. The present MFC achieved an ammonium removal efficiency of 49.2 ± 5.9 or 69.7 ± 3.6%, depending on hydraulic retention time, but exhibited a very low Coulombic efficiency.
机译：使用旋转阴极微生物燃料电池（MFC）检查了铵的电产生。添加氯化铵，硫酸铵或磷酸铵（一元）可发电，而添加氯化钠，硝酸盐或亚硝酸盐不会增加当前产量。峰值电流随着铵添加量的增加而增加，最高达到62.3 mM氯化铵，这表明铵直接作为阳极燃料或间接作为硝化作用的底物参与发电，以生产用于异养生物的有机化合物。与仅添加铵相比，向铵中添加硝酸盐或亚硝酸盐可增加电流产生。使用16S rRNA链接的分子分析，我们在阳极和阴极电极上都发现了铵氧化细菌和反硝化细菌，而没有检测到厌氧氨氧化细菌。占优势的铵氧化细菌与欧洲硝化单胞菌密切相关。根据水力停留时间，本发明的MFC实现了49.2±5.9或69.7±3.6％的铵去除效率，但是展现出非常低的库仑效率。

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  • 来源
    《Environmental Science & Technology》 |2009年第9期|3391-3397|共7页
  • 作者

    ZHEN HE; JINJUN KAN; YANBING WANG; YUELONG HUANG; FLORIAN MANSFELD; KENNETH H. NEALSON;

  • 作者单位

    Department of Earth Sciences, University of Southern California, Los Angeles, California 90089 Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089;

    Department of Earth Sciences, University of Southern California, Los Angeles, California 90089;

    Department of Earth Sciences, University of Southern California, Los Angeles, California 90089;

    Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089;

    Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089;

    Department of Earth Sciences, University of Southern California, Los Angeles, California 90089;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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