شماره ركورد كنفرانس :
4518
عنوان مقاله :
Biosorption of Radium onto Brown Algae: Equilibrium and Kinetic Studies
Author/Authors :
S Latimi Nuclear Science and Technology Research Institute - Atomic Energy Organization of Iran , Sh Shayestehfar Nuclear Science and Technology Research Institute - Atomic Energy Organization of Iran , A Taheri Nuclear Science and Technology Research Institute - Atomic Energy Organization of Iran
كليدواژه :
Radium , Biosorption , C. indica , Kinetics , Adsorption isotherm
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
The removal of radium ions from aqueous solutions by C. indica alga has been studied in a batch system. The biosorption efficiency was determined as a function of pH, contact time and initial metal ions concentration. The results revealed that the uptake of radium ions by C. indica was increased by increasing the metal ion concentration and the contact time, where as it was decreased by decreasing pH of the solution. The maximum biosorption efficiency of C. indica was 83% for radium, respectively. Batch kinetic and isotherm of biosorption metal ions were investigated. The biosorption equilibrium was described by Langmuir and Freundlich isotherm models. It was shown that the equilibrium data could be better fitted by Freundlich equation. It was also found that the biosorption follows pseudo-second-order kinetic model.
