An atomic-emission study of the removal and recovery of chromium from solution by an algal biomass (Chlorella vulgaris).
Inductively coupled plasma atomic-emission spectrometry has been used to study the removal of chromium, principally in the sexivalent oxidation state, from solution by an algal biomass, Chlorella vulgaris, and its subsequent recovery. Binding of the chromium at the 5-100 mug/ml level was maximal (75%) at pH 3 within 3 min, with 5 mg of algae. Quantitative recovery of chromium was achieved by lowering the pH. The algae could be used four times in removal/recovery cycles before losing their 75% removal efficiency.
Pappas
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Department of Chemistry, University of Lowell, Lowell, MA 01854, U.S.A.
Randall
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ST
Sneddon
J
J