Abstract
Biomass of cyanobacterial bloom from Lake Dianchi was used as a biosorbent for copper removal from aqueous solution. The maximum capacity was found at conditions of pH 4, initial concentration of copper was 10 mg/l and initial dose of biomass was 1.0 g/l. HNO3 demonstrated the highest desorption efficiency compared with HCl, EDTA, and citric acid. Physical adsorption was assumed not to be the dominant mechanism of biosorption as revealed by scanning electron microscopy and surface area measurement of the biomass. Infrared ray spectra analysis of the biomass suggested that ion-exchange is the principal mechanism for biosorption. Considering the advantages—low cost, easy to collect, and huge in quantity—the Microcystis bloom biomass could be used as a sorbent for copper and other heavy metals removal.
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The study was supported jointly by the State Key Basic Research and Development Plan of China (2008CB418002) and the National Major Programs of Water Body Pollution Control and Remediation (2008ZX07103-004-01, 2008ZX07104-005-3).
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An erratum to this article can be found at http://dx.doi.org/10.1007/s00284-010-9805-0
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Wang, K., Liu, Y. & Li, D. Biosorption of Copper by Cyanobacterial Bloom-Derived Biomass Harvested from the Eutrophic Lake Dianchi in China. Curr Microbiol 61, 340–345 (2010). https://doi.org/10.1007/s00284-010-9617-2
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DOI: https://doi.org/10.1007/s00284-010-9617-2