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Biosorption of copper(II) by pseudomonas aeruginosa
, Iyengar L., Venkobachar C.
Published in Inderscience Enterprises Ltd, Geneva Aeroport, Switzerland
Volume: 5
Issue: 1
Pages: 92 - 99
The mechanism of accumulation of copper(II) by Pseudomonas aeruginosa was investigated. Uptake consisted of a rapid process (likely to be extracellular binding) followed by a slow phase (possibly cellular uptake). The sorption capacity of the microbe was found to be 50 mg/g, and sorption followed the Langmuir isotherm. The presence of mild mineral acids (0.1 N HCl) led to destructive desorption of 95% of sorbed metal, whereas citrate buffer (pH 4) desorbed 80% of the accumulated metal ions non-destructively. Spectroscopic and microscopic studies indicated the accumulation of metal inside the cell, though the maximum uptake was by the cell wall.
About the journal
JournalInternational Journal of Environment and Pollution
PublisherInderscience Enterprises Ltd, Geneva Aeroport, Switzerland
Open AccessNo