Utilization in alginate beads for Cu(II) and Ni(II) adsorption of an exopolysaccharide produced by <Emphasis Type="Italic">Chryseomonas luteola</Emphasis> TEM05 |
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| Authors: | Email author" target="_blank">Guven?OzdemirEmail author N?Ceyhan E?Manav |
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| Institution: | (1) Faculty of Science, Department of Biology, Ege University, Izmir, 35100, Turkey;(2) Faculty of Science and Letters, Department of Biology, Mugla University, Mugla, 48147, Turkey;(3) Faculty of Engineering, Department of Bioengineering, Ege University, Izmir, 35100, Turkey |
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| Abstract: | Copper and nickel adsorption onto calcium alginate, sodium alginate with an extracellular polysaccharide (EPS) produced by the activated sludge bacterium Chryseomonas luteola TEM05 and the immobilized C. luteola TEM05 from aqueous solutions were studied. After that, the multi metal ions containing these ions together were prepared and partial competitive adsorptions of these mixtures were also investigated. The metal adsorption of gel beads were carried out at pH 6.0, 25 °C. The maximum adsorption capacities in Langmuir isotherm for calcium alginate, calcium alginate + EPS, calcium alginate + C. luteola TEM05 and calcium alginate + EPS + C. luteola TEM05 were 1.505, 1.989, 1.976, 1.937 mmol/g dry weight for Cu(II) and 0.996, 1.224, 1.078, 1.219 mol/g dry weight for Ni(II), respectively.The competitive biosorption capacities of the carrier for all metal ions were lower than single conditions. |
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| Keywords: | Alginate biosorption Chryseomonas luteola copper extracellular polysaccharide nickel |
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