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Heterotrophic Anodic Denitrification in Microbial Fuel Cells

Author

Listed:
  • Jakub Drewnowski

    (Faculty of Civil and Environmental Engineering, Gdansk University of Technology, ul. Narutowicza 11/12, 80-233 Gdansk, Poland)

  • Francisco Jesus Fernandez-Morales

    (Department of Chemical Engineering, University of Castilla-La Mancha, Avda. Camilo José Cela S/N, 13071 Ciudad Real, Spain)

Abstract

Nowadays, pollution caused by energy production systems is a major environmental concern. Therefore, the development of sustainable energy sources is required. Amongst others, the microbial fuel cell (MFC) seems to be a possible solution because it can produce clean energy at the same time that waste is stabilized. Unfortunately, mainly due to industrial discharges, the wastes could contain nitrates, or nitrates precursors such ammonia, which could lead to lower performance in terms of electricity production. In this work, the feasibility of coupling anodic denitrification process with electricity production in MFC and the effect of the nitrates over the MFC performance were studied. During the experiments, it was observed that the culture developed in the anodic chamber of the MFC presented a significant amount of denitrificative microorganisms. The MFC developed was able to denitrify up to 4 ppm, without affecting the current density exerted, of about 1 mA/cm 2 . Regarding the denitrification process, it must be highlighted that the maximum denitrification rate achieved with the culture was about 60 mg·NO 3 − ·L −1 ·h −1 . Based on these results, it can be stated that it is possible to remove nitrates and to produce energy, without negatively affecting the electrical performance, when the nitrate concentration is low.

Suggested Citation

  • Jakub Drewnowski & Francisco Jesus Fernandez-Morales, 2016. "Heterotrophic Anodic Denitrification in Microbial Fuel Cells," Sustainability, MDPI, vol. 8(6), pages 1-10, June.
    • Handle: RePEc:gam:jsusta:v:8:y:2016:i:6:p:561-:d:72205
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    References listed on IDEAS

    as
    1. Gonzalez del Campo, A. & Lobato, J. & Cañizares, P. & Rodrigo, M.A. & Fernandez Morales, F.J., 2013. "Short-term effects of temperature and COD in a microbial fuel cell," Applied Energy, Elsevier, vol. 101(C), pages 213-217.
    2. Chin-Tsan Wang & Yao-Cheng Lee & Fan-Ying Liao, 2015. "Effect of Composting Parameters on the Power Performance of Solid Microbial Fuel Cells," Sustainability, MDPI, vol. 7(9), pages 1-10, September.
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    Cited by:

    1. Adrián Hernández-Fernández & Eduardo Iniesta-López & Yolanda Garrido & Ioannis A. Ieropoulos & Francisco J. Hernández-Fernández, 2023. "Microbial Fuel Cell Using a Novel Ionic-Liquid-Type Membrane-Cathode Assembly with Heterotrophic Anodic Denitrification for Slurry Treatment," Sustainability, MDPI, vol. 15(20), pages 1-18, October.
    2. Irene Bavasso & Daniele Montanaro & Elisabetta Petrucci & Luca Di Palma, 2018. "Shortcut Biological Nitrogen Removal (SBNR) in an MFC Anode Chamber under Microaerobic Conditions: The Effect of C/N Ratio and Kinetic Study," Sustainability, MDPI, vol. 10(4), pages 1-14, April.

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