Features of adsorption processes for wastewater treatment from zinc ions

Date

2021-06-01

Journal Title

Journal ISSN

Volume Title

Publisher

Видавництво Львівської політехніки
Lviv Politechnic Publishing House

Abstract

The results of adsorption properties of complex natural sorbents in relation to the neutralization of zinc ions from wastewater are presented. The adsorption isotherm of Zn2+ ions on complex sorbents (clinoptilolite-shungite) (1:1) according to Langmuir and Freundlich models is constructed, the type of adsorption isotherms according to S. Brunauer classification is established. The value of the maximum sorption capacity of Gmax complex sorbents for Zn2+ ions is calculated. The peculiarities of the sorption process of zinc ions with the formation of a monomolecular layer based on the calculated coefficients of the Langmuir and Freundlich were found. The optimal conditions for the dependence of the degree of absorption of Zn2+ ions by complex sorbents on the duration of the sorption process are determined. The ratio “solid (complex sorbent) – liquid” was determined experimentally.

Description

Keywords

ecological safety, natural sorbents, sorption isoterma, wastewater adsorption

Citation

Petrushka I. Features of adsorption processes for wastewater treatment from zinc ions / Ihor Petrushka, Oksana Bratus, Kateryna Petrushka // Environmental Problems. — Lviv : Lviv Politechnic Publishing House, 2021. — Vol 6. — No 2. — P. 64–68.