Recent progress in biohydrometallurgy and microbial characterisation

Anna H. Kaksonen, Naomi J. Boxall, Yosephine Gumulya, Himel N. Khaleque, Christina Morris, Tsing Bohu, Ka Yu Cheng, Kayley M. Usher, Aino-Maija Lakaniemi

    Research output: Contribution to journalArticleScientificpeer-review

    48 Citations (Scopus)

    Abstract

    Since the discovery of microbiological metal dissolution, numerous biohydrometallurgical approaches have been developed to use microbially assisted aqueous extractive metallurgy for the recovery of metals from ores, concentrates, and recycled or residual materials. Biohydrometallurgy has helped to alleviate the challenges related to continually declining ore grades by transforming uneconomic ore resources to reserves. Engineering techniques used for biohydrometallurgy span from above ground reactor, vat, pond, heap and dump leaching to underground in situ leaching. Traditionally biohydrometallurgy has been applied to the bioleaching of base metals and uranium from sulfides and the biooxidation of sulfidic refractory gold ores and concentrates before cyanidation. More recently the interest in using bioleaching for oxide ore and waste processing, as well as extracting other commodities such as rare earth elements has been growing. Bioprospecting, adaptation, engineering and storing of microorganisms has increased the availability of suitable biocatalysts for biohydrometallurgical applications. Moreover, the advancement of microbial characterisation methods has increased the understanding of microbial communities and their capabilities in the processes. This paper reviews recent progress in biohydrometallurgy and microbial characterisation.

    Original languageEnglish
    Pages (from-to)7-25
    Number of pages19
    JournalHydrometallurgy
    Volume180
    DOIs
    Publication statusPublished - 1 Sep 2018
    Publication typeA1 Journal article-refereed

    Keywords

    • Biohydrometallurgy
    • Bioleaching
    • Biooxidation
    • Characterisation
    • Microbiology

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Industrial and Manufacturing Engineering
    • Metals and Alloys
    • Materials Chemistry

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