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Preparation and characterization of polysulfone and polyethersulfone membranes for calcium (Ca2+) and magnesium (Mg2+) separation by complexation ultrafiltration

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Title Preparation and characterization of polysulfone and polyethersulfone membranes for calcium (Ca2+) and magnesium (Mg2+) separation by complexation ultrafiltration
 
Creator GHOSH, AK
RAMACHANDHRAN, V
SINGH, SP
HANRA, MS
TRIVEDI, MK
MISRA, BM
 
Subject polymer-metal complexes
performance
phase
ions
ultrafiltration
polyethyleneglycol
polyethyleneimine
separation
polysulfone
polyethersulfone
 
Description Asymmetric ultrafiltration membranes were synthesized from locally available polysulfone and polyethersulfone polymers using aprotic solvents and organic additives by the phase inversion method. The membranes were characterized in terms of pure water permeability, separation behavior with respect to polyethylene glycols of various molecular weights and electrolytes. The suitability of using polyethyleneimine (PEI) for selective removal of calcium and magnesium salts by an ultrafiltration process was studied in terms of optimum polymer loading at reasonable permeate flux, irreversible adsorptive fouling of the macromolecular ligand on the polymer as functions of solution pH and ionic strength, and metal ion separation as a function of concentration and pressure. Direct electron microscopic observation of fresh, as well as fouled, membranes are presented.
 
Publisher MARCEL DEKKER INC
 
Date 2011-08-18T11:55:29Z
2011-12-26T12:55:44Z
2011-12-27T05:42:11Z
2011-08-18T11:55:29Z
2011-12-26T12:55:44Z
2011-12-27T05:42:11Z
2002
 
Type Article
 
Identifier JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, 39(6), 557-572
1060-1325
http://dx.doi.org/10.1081/MA-120004247
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10004
http://hdl.handle.net/10054/10004
 
Language en