Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
584418 | Journal of Hazardous Materials | 2007 | 4 Pages |
Abstract
Biosorption of Cr(VI) using native strains of cyanobacteria from metal contaminated soil in the premises of textile mill has been reported in this paper. Biosorption was studied as a function of pH (1-5), contact time (5-180Â min) and initial chromium ion concentration (5-20Â mg/l) to find out the maximum biosorption capacity of alginate immobilized Nostoc calcicola HH-12 and Chroococcus sp. HH-11. The optimum conditions for Cr(VI) biosorption are almost same for the two strains (pH 3-4, contact time 30Â min and initial chromium concentration of 20Â mg/l) however, the biomass of Chroococcus sp. HH-11 was found to be more suitable for the development of an efficient biosorbent for the removal of Cr(VI) from wastewater, as it showed higher values of qm and Kf, the Langmuir and Freundlich isotherm parameters. Both the isotherm models were suitable for describing the biosorption of Cr(VI) by the cyanobacterial biosorbents.
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Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Health and Safety
Authors
Kamra Anjana, Anubha Kaushik, Bala Kiran, Rani Nisha,