@article {10.3844/ajbbsp.2013.47.60, article_type = {journal}, title = {Biosorption of Ternary Cadmium, Nickel and Cobalt Ions from Aqueous Solution onto Saccharomyces cerevisiae Cells: Batch and Column Studies}, author = {Galedar, Maedeh and Younesi, Habibollah}, volume = {9}, number = {1}, year = {2013}, month = {Mar}, pages = {47-60}, doi = {10.3844/ajbbsp.2013.47.60}, url = {https://thescipub.com/abstract/ajbbsp.2013.47.60}, abstract = {The aim of this study was to remove cadmium, nickel and cobalt ions from aqueous solutions using yeast, Saccharomyces cerevisiae, pre-treated with ethanol. The cells are immobilized using polysulfone in both batch and continuous systems. To optimize the adsorption capacity of the yeast biomass, a batch system was used to investigate the effects of initial pH, initial biomass dose and initial metal ion concentration. Optimum conditions were obtained at pH 8 with a biomass of and ion concentrations of 8 and 100 mg L-1, respectively. Under these conditions, the maximum uptake capacity was 3.1 mg g-1 for cadmium, 1.2 mg g-1 for nickel and 0.68 mg g-1 for cobalt. To estimate the biomass uptake capacity of the ethanol pretreated S. cerevisiae, the isothermal Langmuir model was found to be a better fit with a correlation coefficient of R2 }, journal = {American Journal of Biochemistry and Biotechnology}, publisher = {Science Publications} }