Heavy metal removal by ion exchanger based on hydroxyethyl cellulose

Abstract

ABSTRACT:In the present work, ion exchange resin based on hydroxyethyl cellulose has been synthesized to remove the heavy metals, such as iron, cobalt, copper, and zinc from their aqueous solutions. The conditions in the column and batch modes were investigated for this purpose. The resin, having an average swelling percentage of 75.94 and an exchange capacity of 2.57 meq g Ϫ1 resin, is being introduced as a new ion exchange resin in the heavy metal removal process. An investigation of the column operations using aqueous solutions of heavy metal ions indicated that the resin prepared has some advantages, including high total exchange capacity and good chemical stability.

Synthesisis And Applications of Natural Polysaccharide Based Ion Exchanger, Guar Gum 2-Amino-3(4-Imidazolyl) Propanoic Acid (Gaipa) Resin for Removal of Toxic Metal Ions From Industial Efflunt’s of Steel Industry, Jodhpur, Rajasthan.

“…GAIPA resin was used in the steel industry to remove metal ions from reference solutions. 3 S o m e f u n d a m e n t a l i s s u e s a r i s e in the manufacture of Guar gum derivatives or polysaccharide derivatives. Because of the abundance of crystalline and amorphous zones in Guar gum, a precise treatment with sodium hydroxide is required beforehand.…”

A Study on Magnetic Removal of Hexavalent Chromium from Aqueous Solutions Using Magnetite/Zeolite-X Composite Particles as Adsorbing Material

“…The use of nanomaterials in biomedicine and environmental technology has become a state-of-the-art object of research recently. Concerning environmental pollutant remediation and in order to reduce biohazardous effects, several technologies, including chemical precipitation [1,2], ion exchange [3][4][5][6], reverse osmosis [7][8][9] and adsorption [10][11][12][13][14][15], have been used to remove heavy metal ions from various aqueous solutions [16]. Among these methods, adsorption has increasingly received much attention in recent years due to its unique benefits, especially when wastewater with low metal ion concentration must be treated.…”