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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.12 [2005] >
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
polyacrylonitrile
polyethylenimine
sorbent
sorption |
| Issue Date: | Mar-2005 |
| Publisher: | CSIR |
| IPC Code: | B01D 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.
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| Page(s): | 156-163 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.12(2) [March 2005]
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