Removal of thorium from simulated acid process streams by fungal biomass

G. M. Gadd (Lead / Corresponding author), C. White

    Research output: Contribution to journalArticlepeer-review

    106 Citations (Scopus)

    Abstract

    Biomass from several fungal species removed thorium from solution in 1M HNO3, pH 0–1. Thorium uptake was saturable with increasing thorium concentration, although the equilibria did not correspond to a simple ad sorption isotherm. Thorium uptake was altered by the biomass concentration, the uptake per unit biomass being reduced at high biomass concentrations. The presence of Al3+ and Fe3+ only slightly inhibited uptake of thorium while Ca2+, Mg2+, and Na+ had no effect. Thus fungal biomass appears capable of removing thorium from solution under chemical conditions existing in acid waste liquors. Thorium uptake was increased by pretreatment using detergent and also, in the case of filamentous fungi, varied with the culture conditions, which implies that the thorium uptake characteristics of fungal biomass are able to be manipulated by these or similar means for optimum performance.

    Original languageEnglish
    Pages (from-to)592-597
    Number of pages6
    JournalBiotechnology and Bioengineering
    Volume33
    Issue number5
    DOIs
    Publication statusPublished - 25 Jan 1989

    ASJC Scopus subject areas

    • Biotechnology
    • Bioengineering
    • Applied Microbiology and Biotechnology

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