Modeling of heavy metal sorption onto hydroxides in presence of EDTA

Authors

  • Tatyana N. Kropacheva candidate of science (сhemistry), associated professor, Chair of Inorganic and Analytical Chemistry, Udmurt State University, Izhevsk, е-mail: krop@uni.udm.ru
  • Marina V. Didik candidate of science (chemistry), associated professor, Chair of Inorganic and Analytical Chemistry, Udmurt State University, Izhevsk
  • Viktor I. Kornev doctor of science (chemistry), professor, Chair of Inorganic and Analytical Chemistry, Udmurt State University, Izhevsk

Keywords:

sorption, modeling, heavy metals, EDTA, remobilization.

Abstract

Theoretical modeling of equilibria in several heterogeneous systems: metal cation (Pb(II), Сu(II),
Zn(II), Cd(II))–EDTA–sorbent (hydroxides of Fe(III), Al (III), Mn(IV)) has been performed.
Competitive solution reactions of metal-EDTA complex formation lead to essential decrease in sorption
of all metals. The degree of desorption was influenced by the number of factors (the nature of metal and
sorbent, solution acidity, EDTA concentration). The ability of EDTA-induced heavy metals
remobilization in natural and technical systems and processes has been analyzed.

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Published

2019-11-21

Issue

Vol. 13 No. 3 (2013): Sorbtsionnye i Khromatograficheskie Protsessy

Section

Статьи

How to Cite

Modeling of heavy metal sorption onto hydroxides in presence of EDTA. (2019). Sorbtsionnye I Khromatograficheskie Protsessy, 13(3). https://journals.vsu.ru/sorpchrom/article/view/1640

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