Cation-exchange capacity of algae and cyanobacteria: A parameter of their metal sorption abilities
- 1 March 1995
- journal article
- Published by Oxford University Press (OUP) in Journal of Industrial Microbiology & Biotechnology
- Vol. 14 (3-4) , 319-322
- https://doi.org/10.1007/bf01569945
Abstract
The potential metal sorption abilities of algae and cyanobacteria were estimated as cation-exchange capacities, using a potentiometric titration method. Unicellular cyanobacteriaAnacystis nidulans, Synechocystis aquatilis, and the green microalgaStichococcus bacillaris revealed a higher maximal capacity (205–825 μeq g−1 dry wt) than filamentous macroalgaVaucheria sp. (Xanthophyceae, 41 μeq g−1 dry wt). The cation-exchange capacity decreased when external pH decreased. Different ion-exchange properties of cell surfaces of cyanobacteria and algae were observed.Keywords
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