Biotechnology and Bioengineering, Vol.96, No.6, 1051-1063, 2007
Bioremediation potential of live and dead spirulina: Spectroscopic, kinetics and SEM studies
Metal binding by algae has enormous potential for environmental bioremediation targeting towards detoxification of water bodies. The present work reports the use of live and dead Spiridina sp. for sorption of metals like Cr3+ Ni2+, Cu-2,Cu- and Cr6+ in form of Cr2O72-. Preliminary investigation shows that this biomass takes up substantial amount of metal ions indicated above. IR spectroscopic study, kinetics models, Langmuir and Freundlich adsorption isotherms, SEM analysis, and fluorescence microscopic study of Spirulina sp. and the Spirulina sp. treated with different metal ions have been employed to understand the sorption mechanism. It is hoped that live Spirulina sp. will be a strong candidate for management of industrial wastewater.