Simultaneous removal of nickel and cobalt from aqueous stream by cross flow micellar enhanced ultrafiltration

Nickel and cobalt were simultaneously removed from aqueous feed using cross flow micellar enhanced ultrafiltration. Twenty kiloDalton polysulfone membrane was used and the rejection more than 99% was obtained. The effect of operating variables like inlet flow rate, inlet pressure, feed metal ions co...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2008-09, Vol.157 (2), p.464-471
Main Authors: Karate, Vishal D., Marathe, K.V.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Cobalt
Cobalt - chemistry
Cobalt - isolation & purification
Cross flow
Equipment Design
Exact sciences and technology
Hydrogen-Ion Concentration
Industrial Waste
Membrane separation (reverse osmosis, dialysis...)
MEUF
Micelles
Nickel
Nickel - chemistry
Nickel - isolation & purification
Pollution
Solutions - chemistry
Surface-Active Agents - chemistry
Ultrafiltration
Ultrafiltration - methods
Water Purification - instrumentation
Water Purification - methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nickel and cobalt were simultaneously removed from aqueous feed using cross flow micellar enhanced ultrafiltration. Twenty kiloDalton polysulfone membrane was used and the rejection more than 99% was obtained. The effect of operating variables like inlet flow rate, inlet pressure, feed metal ions concentration, surfactant to metal ion (S/M) ratio and pH on the rejection of metal ions was investigated. Gel layer formation and concentration polarization was insignificant under the present experimental condition. Presence of salt in the aqueous feed results in drop in rejection from 99% to 88%. The distribution coefficient of solutes in the micellar phase and aqueous phase was estimated from ultrafiltration data. The loading of micelles was also estimated for both the nickel and cobalt ions which confirmed the reproducibility of the micellar enhanced ultrafiltration (MEUF) experiments.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2008.01.013