Electrochemical reduction of metal ions in dilute solution using hydrogen

I. Portegies Zwart, E.C.W. Wijnbelt, L.J.J. Janssen

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

    Abstract

    Reduction of metal ions in dilute solutions is of great interest for purification of waste waters and process liquids. A new electrochemical cell has been introduced. This cell - a GBC-cell - is a combination of a gasdiffusion electrode in direct contact with a packed bed of carbon particles. Hydrogen gas flows along the hydrophobic side of the gas-diffusion electrode and a chromate solution is pumped upwards through the bed. Experiments were carried out with H2S04 solutions initially containing 70 mol m'l chromate at various temperatures, solution flow rates, H2S04 concentrations and bed thicknesses. It has been concluded that the GBCcell is very attractive for the reduction of chromate in dilute solutions and for industrial applications on a large scale.
    Original languageEnglish
    Title of host publicationInternational Symposium on Electrochemical Science & Technology
    PagesL75-1/6
    Publication statusPublished - 1995
    EventHK international sympoium on electrochemical science and technology -
    Duration: 24 Aug 199524 Aug 1995

    Conference

    ConferenceHK international sympoium on electrochemical science and technology
    Period24/08/9524/08/95

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  • Cite this

    Portegies Zwart, I., Wijnbelt, E. C. W., & Janssen, L. J. J. (1995). Electrochemical reduction of metal ions in dilute solution using hydrogen. In International Symposium on Electrochemical Science & Technology (pp. L75-1/6)