Copper adsorption by Rhizopus arrhizus, Cladosporium resinae and Penicillium italicum

Louise de Rome, Geoffrey M. Gadd

    Research output: Contribution to journalArticlepeer-review

    221 Citations (Scopus)

    Abstract

    Copper adsorption by Rhizopus arrhizus, Cladosporium resinae and Penicillium italicum was studied using a copper-selective electrode. Copper adsorption by C. resinae and P. italicum obeyed the Freundlich and Langmuir isotherms for single-layer adsorption whereas R. arrhizus followed the BET isotherm for multi-layer adsorption. Temperature had little effect on adsorption over the range 4-25°C. Mineral acids were effective for desorption of copper from preloaded biomass, the efficiency of desorption increasing with decreasing pH. Other cations were also capable of copper desorption with zinc showing the greatest efficiency and sodium the lowest.

    Original languageEnglish
    Pages (from-to)84-90
    Number of pages7
    JournalApplied Microbiology and Biotechnology
    Volume26
    Issue number1
    DOIs
    Publication statusPublished - Apr 1987

    Keywords

    • Sodium
    • Copper
    • Biomass
    • Zinc
    • Penicillium

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