Biosorption of Chromium(VI) and Lead(II): Role ofSpirulina platensisin the Treatment of Industrial Effluent

Autor:	R. L. Babu, M. Naveen Kumar, E. Vijayalakshmi, K. S. Devaraju, Rajeshwari H. Patil, S. Chidananda Sharma
Rok vydání:	2013
Předmět:	Aqueous solution Waste management Biosorption chemistry.chemical_element Resorcinol Industrial effluent law.invention chemistry.chemical_compound Chromium Bioremediation chemistry law Environmental chemistry Spirulina (dietary supplement) Atomic absorption spectroscopy General Environmental Science
Zdroj:	Bioremediation Journal. 17:231-239
ISSN:	1547-6529 1088-9868
DOI:	10.1080/10889868.2013.827619
Popis:	Biosorption is the process of removal of any chemical molecules by the treatment of biological material. Industrialization resulted in the discharge of various toxic heavy metals into water bodies, which poses serious health hazards to humans and animals. In the present study, live Spirulina platensis was used as a biosorbent for the removal of the heavy metals chromium (Cr(VI)) and lead (Pb(II)) from the aqueous samples. S. platensis were cultured in the presence of different concentrations of heavy metals. The growth of the algal cells was found to be decreased by 59% and 36% in media containing 50 ppm Cr(VI) and Pb(II), respectively. To assess the biosorption of heavy metals, at different time intervals, the spent culture media were used to detect Cr(VI) by atomic absorption spectroscopy method and Pb(II) by 4-(2-pyridylazo)resorcinol indicator method. Results suggested that there was a significant uptake of Cr(VI) and Pb(II) from the medium by S. platensis, with corresponding decrease of meta...
Databáze:	OpenAIRE
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