Removal of Heavy Metals from Multicomponent Metal Mixtures by Polymer Enhanced Ultrafiltration: Effects of pH, Ionic Strength and Conformational Changes in Polymer Structure

Fractional separation of industrially important heavy metals (cadmium, nickel, zinc) from binary and ternary metal mixtures by continuous mode polymer enhanced ultrafiltration was studied. Polyethyleneimine (PEI) was used as a complexation polymer. Effects of pH and ionic strength on process efficie...

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Bibliographic Details
Published in:Separation science and technology 2010-06, Vol.45 (10), p.1363-1373
Main Authors: Kadioglu, Sezin Islamoglu, Yilmaz, Levent, Aydogan, Nihal, Onder Ozbelge, H.
Format: Article
Language:English
Subjects:
Binding
heavy metal
Heavy metals
light scattering
Polyetherimides
polyethyleneimine
polymer
Separation
Strength
ultra filtration
Ultrafiltration
Zinc
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Summary:Fractional separation of industrially important heavy metals (cadmium, nickel, zinc) from binary and ternary metal mixtures by continuous mode polymer enhanced ultrafiltration was studied. Polyethyleneimine (PEI) was used as a complexation polymer. Effects of pH and ionic strength on process efficiency were investigated. To gain insight about the characteristics of binding between highly branched PEI and metal ions and effect of salt concentration on this binding were investigated by performing dynamic and static light scattering measurements. It was observed that with optimum pH and salt concentration, fractional separation of metals can be achieved.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496391003674274