Regional Symposium on Innovation in science and technology

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Competitive biosorption of Pb(II) and Cd(II) by live Dunaliella salina

Authors :

Somayyeh Ziaei¹ Hossein Ahmadzadeh² Zarrin Es’haghi³

1- دانشگاه فردوسی مشهد 2- دانشگاه فردوسی مشهد 3- دانشگاه پیام نور

Keywords :

bisorption،heavy metal ions،Dunaliella salina microalgae

Abstract :

The main aim of this study is continuous bioremoval of Pb(II) and Cd(II) ions in the aqueous conditions using live Dunaliella salina microalgae. For the selective Pb(II) uptake in the presence of Cd(II), single and binary systems of ions were chosen. The mutual effect of each heavy metal ion in all systems on the total uptake percentage was also examined. Both Langmuir and Freundlich isotherm models were suitable for describing multicomponent binary systems depending on the presence of competitive ions in the mixture.

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