Modeling of heavy metal sorption onto hydroxides in presence of EDTA
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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References
1. Nowack B. Environmental Chemistry of Aminopolycarboxylate Chelatin
Agents//Environ. Sci.Technol. 2002. V. 36. № 19. P. 4009-4015.
2. Knepper T.P. Synthetic chelating agents and compounds exhibiting complexing
properties in the aquatic environment// Trends Anal. Chem. 2003. V.22. № 10. P. 708-724.
3. Leštan D., Luo Chun-ling, Li Xiang-dong. The use of chelating agents in the
remediation of metal-contaminated soils: A review // Environ. Pollut. 2008.V. 153, № 1.
P.3-13.
4. Dermont G., Bergeron M., Mercier G. et all. Soil washing for metal removal: A review
of physical/chemical technologies and field applications// J. Hazard Mater. 2008. V.152, №
1. P.1-31.
5. Nowack B., Lutzenkirchen J., Behra P. et al. Modelling the Adsorption of Metal-
EDTA Complexes onto Oxides// Environ. Sci.Technol. 1996. V.30. № 7. P. 2397-2405.
6.Nowack B., Sigg L. Adsorption of EDTA and metal-EDTA Complexes onto
Goethite//J. Colloid Interf. Sci. 1996.V.177, № 1. P.106-129.
7.Кропачева Т.Н., Корнев В.И. Моделирование ремобилизации тяжелых металлов
под действием ЭДТА// Вода: химия и экология. 2012. № 5. С. 92-98.
8.http://www2.lwr.kth.se/English/OurSoftware/vminteq/
9. NIST Standard Reference Database 46. Critically Selected Stability Constants of
Metal Complexes.
Agents//Environ. Sci.Technol. 2002. V. 36. № 19. P. 4009-4015.
2. Knepper T.P. Synthetic chelating agents and compounds exhibiting complexing
properties in the aquatic environment// Trends Anal. Chem. 2003. V.22. № 10. P. 708-724.
3. Leštan D., Luo Chun-ling, Li Xiang-dong. The use of chelating agents in the
remediation of metal-contaminated soils: A review // Environ. Pollut. 2008.V. 153, № 1.
P.3-13.
4. Dermont G., Bergeron M., Mercier G. et all. Soil washing for metal removal: A review
of physical/chemical technologies and field applications// J. Hazard Mater. 2008. V.152, №
1. P.1-31.
5. Nowack B., Lutzenkirchen J., Behra P. et al. Modelling the Adsorption of Metal-
EDTA Complexes onto Oxides// Environ. Sci.Technol. 1996. V.30. № 7. P. 2397-2405.
6.Nowack B., Sigg L. Adsorption of EDTA and metal-EDTA Complexes onto
Goethite//J. Colloid Interf. Sci. 1996.V.177, № 1. P.106-129.
7.Кропачева Т.Н., Корнев В.И. Моделирование ремобилизации тяжелых металлов
под действием ЭДТА// Вода: химия и экология. 2012. № 5. С. 92-98.
8.http://www2.lwr.kth.se/English/OurSoftware/vminteq/
9. NIST Standard Reference Database 46. Critically Selected Stability Constants of
Metal Complexes.
Published
2019-11-21
How to Cite
Kropacheva, T. N., Didik, M. V., & Kornev, V. I. (2019). Modeling of heavy metal sorption onto hydroxides in presence of EDTA. Sorbtsionnye I Khromatograficheskie Protsessy, 13(3). Retrieved from https://journals.vsu.ru/sorpchrom/article/view/1640
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