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IJCT Vol.12(2) [March 2005] >

Title: A novel fibre-coated sorbent for rapid removal of heavy metals from wastewater. Sorption of Zinc(II) from dilute aqueous solutions in the presence of high concentrations of common salts
Authors: Chanda, Manas
Pillay, S Arumugom
Keywords: Acrylic fibre
zinc ion
ion-exchange resin
Issue Date: Mar-2005
Publisher: CSIR
IPC CodeB01D 21/00; C02F 1/42
Abstract:  The commercial acrylic fibre “Cashmilon” was partially hydrolyzed to convert a fraction of its nitrile (-CN) groups to carboxylic acid (-COOH) groups and then coated with polyethylenimine (PEI) resin and cross-linked with glutaraldehyde to produce a novel gel-coated fibrous sorbent with multiple functionalities of cationic, anionic and chelating types, and significantly faster sorption kinetics than bead-form sorbents. The sorption properties of the fibrous sorbent were measured using Zn(II) in aqueous solution as the sorbate to determine the effects of pH and the presence of common ions in the solution on the sorption capacity. The rate of sorption on the gel-coated fibre was measured in comparison with that on Amberlite IRA-68 weak-base resin beads, to demonstrate the marked difference between fibre and bead-form sorbents in their kinetic behaviour.
Page(s): 156-163
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.12(2) [March 2005]

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