Sorption and precipitation of Mn2+ by viable and autoclaved Shewanella putrefaciens: effect of contact time

Natalia Chubar, Tom Visser, Cristina Avramut, Helen de Waard

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The sorption of Mn(II) by viable and inactivated cells of Shewanella putrefaciens, a non-pathogenic, facultative anaerobic, gram-negative bacterium characterised as a Mn(IV) and Fe(III) reducer, was studied under aerobic conditions, as a function of pH, bacterial density and metal loading. During a short contact time (3–24 h), the adsorptive behaviour of live and dead bacteria toward Mn(II) was sufficiently similar, an observation that was reflected in the studies on adsorption kinetics at various metal loadings, effects of pH, bacteria density, isotherms and drifting of pH during adsorption.
    Original languageEnglish
    Pages (from-to)232-250
    Number of pages19
    JournalGeochimica et Cosmochimica Acta
    Volume100
    DOIs
    Publication statusPublished - Jan 2013

    Keywords

    • environmental chemistry
    • bioremediation
    • biomaterials
    • biomineralisation
    • geochemistry

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