Summary
Immobilised Saccharomyces cerevisiae in batch reactors effectively removed copper from solution with a binding equilibrium of 70 % being attained within 20 minutes of contact. Maximum uptake was between pH 3 to 5 (Vmax = 24.1 μmol/g) and was substantially reduced at pH 2. Bound copper was readily recovered by addition of 1.0 M HCl (≤ % v/v). In adsorption-desorption studies metal removal and recovery was high, and uptake was increased with repeated use. Electron microscopy confirmed that no morphological changes occur to the cells during repeated adsorption-desorption.
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Wilhelm, B.S., Duncan, J.R. Reusability of immobilised Saccharomyces cerevisiae with successive copper adsorption-desorption cycles. Biotechnol Lett 18, 531–536 (1996). https://doi.org/10.1007/BF00140198
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DOI: https://doi.org/10.1007/BF00140198