Journal of Siberian Federal University. Engineering & Technologies / Deep Purification Technogenic Solutions of Nickel Ions (II) by the Modified Aluminosilicate

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2017 10 (3)
Authors
Pomazkina, Olga I.; Filatova, Elena G.; Lebedeva, Oksana V.; Pozhidaev, Yury N.
Contact information
Pomazkina, Olga I.: National Research Irkutsk State Technical University 83 Lermontov Str., Irkutsk, 664074, Russia; ; Filatova, Elena G.: National Research Irkutsk State Technical University 83 Lermontov Str., Irkutsk, 664074, Russia; ; Lebedeva, Oksana V.: National Research Irkutsk State Technical University 83 Lermontov Str., Irkutsk, 664074, Russia; Pozhidaev, Yury N.: National Research Irkutsk State Technical University 83 Lermontov Str., Irkutsk, 664074, Russia
Keywords
deep water purification; adsorption; modified aluminosilicates; nickel ion (II)
Abstract

There studied an adsorption method for purifying technological solutions of nickel (II) ions modified aluminosilicates. The obtained adsorption isotherms. Experimental data were processed using the models of Langmuir, Freundlich, BET and Dubinin-Radushkevich. Defined constants for these equations. It is shown that the adsorption on aluminosilicates modified poly-1-vinylimidazole best describes the model of Freundlich the adsorption on aluminosilicates modified poly-4- vinylpyridine – Langmuir. The model of Dubinin-Radushkevich is used to calculate the free energy of adsorption. For all modified aluminosilicates, the value of free energy of adsorption, indicates an ion exchange mechanism, and fixation the ions of Nickel (II) has a chemical nature

Pages
327-336
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/32626

Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).