Cellulose Acetate and Sulfonated Polysulfone Blend Ultrafiltration Membranes. Part III. Application Studies

Ultrafiltration membranes are largely being applied for macromolecular and heavy metal ion separations from aqueous streams. Cellulose acetate and sulfonated polysulfone-based membranes prepared in the absence and presence of the polymeric additive poly(ethylene glycol) 600 in various compositions w...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2001-10, Vol.40 (22), p.4815-4820
Main Authors: Ramamoorthy, Malaisamy, Raju, Mohan Doraiswamy
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Exchange resins and membranes
Forms of application and semi-finished materials
Industrial wastewaters
Membrane separation (reverse osmosis, dialysis...)
Pollution
Polymer industry, paints, wood
Technology of polymers
Wastewaters
Water treatment and pollution
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Summary:Ultrafiltration membranes are largely being applied for macromolecular and heavy metal ion separations from aqueous streams. Cellulose acetate and sulfonated polysulfone-based membranes prepared in the absence and presence of the polymeric additive poly(ethylene glycol) 600 in various compositions were subjected to the separation of macromolecular proteins such as bovine serum albumin, egg albumin, pepsin, and trypsin. Toxic heavy metal ions such as copper, nickel, cadmium, and zinc were subjected to separation by the blend membranes by complexing them with the polymeric ligand polyethyleneimine. The effect of the polymer blend compositions and additive concentrations on the rejection and permeate flux of both proteins and metal ions is discussed. The separation and permeate flux efficiencies of the blend membranes are compared with those of pure cellulose acetate, sulfonated polysulfone, and polysulfone membranes.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie010150y