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微生物燃料电池-零价铁耦合工艺的构建及除砷性能

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申中正, 赵华章, 薛安. 微生物燃料电池-零价铁耦合工艺的构建及除砷性能[J]. 环境工程学报, 2013, 7(5): 1646-1650.
引用本文: 申中正, 赵华章, 薛安. 微生物燃料电池-零价铁耦合工艺的构建及除砷性能[J]. 环境工程学报, 2013, 7(5): 1646-1650.
shu
Shen Zhongzheng, Zhao Huazhang, Xue An. Construction of a microbial fuel cell-zerovalent iron hybrid process and its application in arsenite removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1646-1650.
Citation: Shen Zhongzheng, Zhao Huazhang, Xue An. Construction of a microbial fuel cell-zerovalent iron hybrid process and its application in arsenite removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1646-1650.
shu

微生物燃料电池-零价铁耦合工艺的构建及除砷性能

  • 1.

    北京大学环境工程系,北京 100871

  • 2.

    教育部水沙科学重点实验室,北京 100871

  • 基金项目:

    国家自然科学基金资助项目(21077001)

    "十二五"国家科技支撑计划项目(2011BAJ07B04)

  • 中图分类号: X52

Construction of a microbial fuel cell-zerovalent iron hybrid process and its application in arsenite removal

  • 1.

    Department of Environmental Engineering, Peking University, Beijing 100871, China

  • 2.

    Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China

  • Fund Project:

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  • 摘要: 为了更为有效地利用微生物燃料电池(MFC)所产电能并提高零价铁(ZVI)去除污染物工艺的效率,构建了微生物燃料电池-零价铁(MFC-ZVI)耦合工艺,并将其应用在三价砷水溶液的处理中。实验结果表明,在该耦合系统中,ZVI直接利用了MFC所产生的低压电能,铁腐蚀速率和除砷效率因此得到显著提高。实验所用MFC的最高稳定产电电压为0.52 V,电解过程中MFC的库伦效率为4.59%,以二价铁离子计算的电流效率为72.74%。反应结束后,溶液的pH值由反应前的8.0升高到8.5。两体系中铁氧化物产生量的差异以及铁氧化物形态分布的不同可能是导致其除砷效果不同的主要原因。
    Abstract: To make a better use of the electricity generated by microbial fuel cell (MFC) and remove arsenite more efficiently by zerovalent iron (ZVI) technology, microbial fuel cell-zerovalent iron (MFC-ZVI) hybrid process was constructed and applied in arsenite removal process. The result showed that ZVI made a direct use of the low voltage electricity generated by MFC and the iron corrosion rate and arsenite removal rate greatly increased in MFC-ZVI system. The maximum steady voltage output was measured to be 0.52 V and the Columbic Efficiency was 4.59% during the power generation process. The current efficiency was found to be 72.74% and the pH of the MFC-ZVI system increased from 8.0 to 8.5. The amount difference of the generated hydrous ferric oxides (HFOs) and the species difference of the iron corrosion products in the two systems maybe the main reasons that contributed to the difference of arsenite removal efficiency.
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    [2] Liu H., Cheng S. A., Logan B. E. Production of electricity from acetate or butyrate using a single-chamber microbial fuel cell. Environ. Sci. Technol., 2005, 39 (2): 658-662
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    [5] Oh S. E., Logan B. E. Voltage reversal during microbial fuel cell stack operation. Journal of Power Sources, 2007, 167 (1): 11-17
    [6] Kim B. H., Chang I. S., Gil G. C., et al. Novel BOD (biological oxygen demand) sensor using mediator-less microbial fuel cell. Biotechnology Letters, 2003, 25 (7): 541-545
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  • 收稿日期:  2012-02-14
  • 刊出日期:  2013-05-22
申中正, 赵华章, 薛安. 微生物燃料电池-零价铁耦合工艺的构建及除砷性能[J]. 环境工程学报, 2013, 7(5): 1646-1650.
引用本文: 申中正, 赵华章, 薛安. 微生物燃料电池-零价铁耦合工艺的构建及除砷性能[J]. 环境工程学报, 2013, 7(5): 1646-1650.
shu
Shen Zhongzheng, Zhao Huazhang, Xue An. Construction of a microbial fuel cell-zerovalent iron hybrid process and its application in arsenite removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1646-1650.
Citation: Shen Zhongzheng, Zhao Huazhang, Xue An. Construction of a microbial fuel cell-zerovalent iron hybrid process and its application in arsenite removal[J]. Chinese Journal of Environmental Engineering, 2013, 7(5): 1646-1650.
shu

微生物燃料电池-零价铁耦合工艺的构建及除砷性能

  • 1.  北京大学环境工程系,北京 100871
  • 2.  教育部水沙科学重点实验室,北京 100871
  • 收稿日期:  2012-02-14
基金项目:

国家自然科学基金资助项目(21077001)

"十二五"国家科技支撑计划项目(2011BAJ07B04)

摘要: 为了更为有效地利用微生物燃料电池(MFC)所产电能并提高零价铁(ZVI)去除污染物工艺的效率,构建了微生物燃料电池-零价铁(MFC-ZVI)耦合工艺,并将其应用在三价砷水溶液的处理中。实验结果表明,在该耦合系统中,ZVI直接利用了MFC所产生的低压电能,铁腐蚀速率和除砷效率因此得到显著提高。实验所用MFC的最高稳定产电电压为0.52 V,电解过程中MFC的库伦效率为4.59%,以二价铁离子计算的电流效率为72.74%。反应结束后,溶液的pH值由反应前的8.0升高到8.5。两体系中铁氧化物产生量的差异以及铁氧化物形态分布的不同可能是导致其除砷效果不同的主要原因。

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