Possibility of using a lithotrophic iron-oxidizing microbial fuel cell as a biosensor for detecting iron and manganese in water samples

Phuong Hoang Nguyen Tran, Tha Thanh Thi Luong, Thuy Thu Thi Nguyen, Huy Quang Nguyen, Hop Van Duong, Byung Hong Kim, Hai The Pham

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Iron-oxidizing bacterial consortia can be enriched in microbial fuel cells (MFCs) operated with ferrous iron as the sole electron donor. In this study, we investigated the possibility of using such lithotrophic iron-oxidizing MFC (LIO-MFC) systems as biosensors to monitor iron and manganese in water samples. When operated with anolytes containing only ferrous iron as the sole electron donor, the experimented LIO-MFCs generated electrical currents in response to the presence of Fe2+ in the anolytes. For the concentrations of Fe2+ in the range of 3-20 mM, a linear correlation between the current and the concentration of Fe2+ could be achieved (r2 = 0.98). The LIO-MFCs also responded to the presence of Mn2+ in the anolytes but only when the Mn2+ concentration was less than 3 mM. The presence of other metal ions such as Ni2+ or Pb2+ in the anolytes reduced the Fe2+-associated electricity generation of the LIO-MFCs at various levels. Organic compounds, when present at a non-excessive level together with Fe2+ in the anolytes, did not affect the generation of electricity, although the compounds might serve as alternative electron donors for the anode bacteria. The performance of the LIO-MFCs was also affected to different degrees by operational parameters, including surrounding temperature, pH of the sample, buffer strength and external resistance. The results proved the potential of LIO-MFCs as biosensors sensing Fe2+ in water samples with a significant specificity. However, the operation of the system should be in compliance with an optimal procedure to ensure reliable performance.

    Original languageEnglish
    Pages (from-to)1806-1815
    Number of pages10
    JournalEnvironmental Sciences: Processes and Impacts
    Volume17
    Issue number10
    DOIs
    Publication statusPublished - 1 Oct 2015

    Fingerprint

    Bioelectric Energy Sources
    Microbial fuel cells
    Biosensing Techniques
    fuel cell
    Manganese
    Biosensors
    manganese
    Iron
    iron
    Water
    Electricity
    water
    Electrons
    electron
    electricity generation
    Organic compounds
    Metal ions
    compliance
    organic compound
    Bacteria

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Public Health, Environmental and Occupational Health
    • Management, Monitoring, Policy and Law

    Cite this

    Nguyen Tran, P. H., Thi Luong, T. T., Thi Nguyen, T. T., Nguyen, H. Q., Duong, H. V., Kim, B. H., & Pham, H. T. (2015). Possibility of using a lithotrophic iron-oxidizing microbial fuel cell as a biosensor for detecting iron and manganese in water samples. Environmental Sciences: Processes and Impacts, 17(10), 1806-1815. https://doi.org/10.1039/c5em00099h

    Possibility of using a lithotrophic iron-oxidizing microbial fuel cell as a biosensor for detecting iron and manganese in water samples. / Nguyen Tran, Phuong Hoang; Thi Luong, Tha Thanh; Thi Nguyen, Thuy Thu; Nguyen, Huy Quang; Duong, Hop Van; Kim, Byung Hong; Pham, Hai The.

    In: Environmental Sciences: Processes and Impacts, Vol. 17, No. 10, 01.10.2015, p. 1806-1815.

    Research output: Contribution to journalArticle

    Nguyen Tran, Phuong Hoang ; Thi Luong, Tha Thanh ; Thi Nguyen, Thuy Thu ; Nguyen, Huy Quang ; Duong, Hop Van ; Kim, Byung Hong ; Pham, Hai The. / Possibility of using a lithotrophic iron-oxidizing microbial fuel cell as a biosensor for detecting iron and manganese in water samples. In: Environmental Sciences: Processes and Impacts. 2015 ; Vol. 17, No. 10. pp. 1806-1815.
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