In situ water electrolyzer stack for an electrobioreactor

Georgy Givirovskiy (Corresponding Author), Vesa Ruuskanen, Leo S. Ojala, Petteri Kokkonen, Jero Ahola

    Research output: Contribution to journalArticleScientificpeer-review

    16 Citations (Scopus)


    Hydrogen-oxidizing bacteria provide a sustainable solution for microbial protein production. Renewable electricity can be used for in situ water electrolysis in an electrobioreactor. The use of cultivation medium as the electrolyte enhances the hydrogen dissolution to the medium. This paper proposes a stack structure for in situ water electrolysis to improve the productivity of the electrobioreactor. The hydrogen production rate and the energy efficiency of the prototype stack are analyzed.
    Original languageEnglish
    Article number1904
    Issue number10
    Publication statusPublished - 2019
    MoE publication typeA1 Journal article-refereed


    Funding: Financial support was given by the Technology Industries of Finland Centennial Foundation and Jane and Aatos Erkko Foundation for the project “Feed and food from carbon dioxide and electricity—research and piloting of the future protein production.”


    • Electrobioreactor
    • Hydrogen-oxidizing bacteria
    • In situ water electrolysis
    • Microbial protein


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