Use of Activated Clinoptilolite for Direct Dye-Contained Wastewater Treatment
Viktoria Kochubei, Svitlana Yaholnyk, Marianа Bets, Мyroslav Malovanyy
Abstract
This work reveals a method of complex thermal and chemical activation of natural clinoptilolite from Sokyrnytsky deposit. The chemical activation of a mineral was carried out by HCl solutions treatment at various ratios of liquid-to-solid phases. With the use of thermal and infrared (IR) spectroscopic analyses, the adsorption property of a natural and activated clinoptilolite has been examined for water vapor. The ability of complexly activated clinoptilolite to adsorb direct dyes from their aqua solutions has been investigated. The constants of isotherms of monomolecular adsorption by Langmuir have been determined. Activated clinoptilolite has been suggested to be used for the treatment of wastewater containing organic impurities.