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Ecological Systems and Devices Annotation << Back
Termodinamic and kinetic aspects
of biosorption ions Pb (II), Cd (II)
and Cu (II) from aqueous solutions by cell
wall of brewing yeast |
Aronbaev C.D.
Nasimov A.M.
Aronbaev D.M.
We study thermodynamic and kinetic of aspects biosorption ions Pb (II), Cd (II) and Cu (II) from aqueous solutions by the cell walls of brewing yeast Saccharomyces cerevisiae. It was established that the adsorption kinetics of these ions is described by velocity of pseudosecond order. The values of thermodynamic parameters – Gibbs’s free energy ΔG0, enthalpy ΔH0 and entropy ΔS0 biosorption. The endothermic nature of the sorption of ions studied yeast cell walls and implementation mainly physical sorption of heavy metal ions their surface is shown.
Keywords: yeast cell walls; cellulose materials; heavy metal ions; Biosorption kinetics; reaction order; thermodynamics of biosorption; free energy; enthalpy; entropy.
Contacts: E-mail: diron51@mail.ru
Pp. 39-47. |
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