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The separation of alcohol–water mixtures by pervaporation has been preferentially carried out through hydrophobic membranes because it is more practical to permeate alcohol through the membrane. Nevertheless, most polymeric membranes are water permselective as th ...
Desalination 149 (2002)

The pervaporation performances of a series of functionalized syndiotactic poly(styrene-co-4-methylstyrene) (SPSM) membranes for various alcohol mixtures were investigated. The effect of functionalization on the thermal properties and polymer structure of the SPSM
Desalination 149 (2002)

New membranes have been prepared by the electropolymerization of a new pyrrole dibenzo-18-crown-6 monomer with the pyrrole. The results present th ...
Desalination 148 (2002)

Zeolite A membranes have been synthesised by secondary growth on the surface of macroporous "-alumina and stainless steel tubular supports, previously seeded wit ...
Desalination 147 (2002)

... resulting in development of a hierarchic system of mathematical models is presented. Different scales of ion transport are considered: 1) in the membrane, where two approaches are used, the irreversible thermodynamics and modelling of the membrane material, the last permits to link physicochemica ...
Desalination 147 (2002)

Separation of benzene and cyclohexane by a NaY zeolite membrane was studied via grand canonical molecular dynamics (GCMD). The GCMD technique was recently developed by simulation methods and effective for th ...
Desalination 147 (2002)

... of PE-1 polyelectrolyte were somewhat worse. The use of polyacrylamide as an inhibitor has been shown to increase the retentivity of the OPAM-KN membrane up to 0.90. An appearance of the CaSO4 nuclei at surplus of SO42– ion was established to occur at a CaSO4 concentration higher than 0.68 g/l ...
Desalination 147 (2002)

... sludge. It was found that activated sludge does adsorb the natural hormones and that activated sludge during ultrafiltration develops a dynamic membrane which enhances the retention of the hormones. The results indicate that particle —contaminate interactions are critical for trace contaminan ...
Desalination 147 (2002)

Three-dimensional particles deposition on a filter pore of a track-etched polycarbonate membrane was studied numerically by analyzing forces acting on the depositing particles. The simulation was applied to examine how the morphology of th ...
Desalination 146 (2002)

... (10, 20, 50 g/m3) or tannic acid (5, 10, 15, 20 g/m3) at a neutral pH. The ultrafiltration process involved a DS-GE polysulfone/polyamide membrane (Osmonics) and a transmembrane pressure of 0.1 and 0.3 MPa. The highest atrazine rejection coefficient (80%) was achieved at the organic matte ...
Desalination 147 (2002)

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