COMPARATIVE REMOVAL OF METHYLENE BLUE FROM AQUEOUS SOLUTION USING DIFFERENT ADSORBENTS

Journal of The Chilean Chemical Society

article

Ikhlass Marzouk Trifi¹  Beyram Trifi²  Houda Zendah³  Béchir Hamrouni¹ 

[1] Université de Tunis El Manar, Faculté des Sciences de Tunis, Laboratoire Dessalement et Traitement des Eaux;Laboratoire Matériaux, Traitement et Analyse, Institut National de Recherche et d’Analyse Physico-chimique;Laboratoire de Traitement des Eaux Naturelles, Centre de Recherches et des Technologies des Eaux

关键词: Activated orange peels;    isotherms;    kinetics;    magnetic alginate composite beads;    methylene blue;   

DOI  :  10.4067/S0717-97072021000305246

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

A comparative study for the adsorption of Methylene blue onto different prepared adsorbents was investigated. First, a comparative study was performed with different parameters between orange peels, orange peels activated with phosphoric acid, orange peels activated encapsulating in alginate and orange peels activated encapsulating in magnetic alginate. It can be concluded that the magnetic alginate composite beads were the best adsorbent. Then the isotherms, kinetics and regeneration studies for the removal of Methylene blue were studied onto magnetic alginate composite beads. The adsorption of Methylene blue on magnetic alginate composite beads was applied to isotherm models showed that the interaction of Methylene blue with magnetic alginate composite beads surface is localized monolayer adsorption. The kinetic process flow a pseudo-second-order kinetic. Finally, the removal efficiencies were maintained using HCl solution as desorbing agent after five cycles of adsorption-desorption.

【 授权许可】

Unknown