Hydrophilic ion-exchange membranes based on sulfonated polyethylene hollow fibers were manufactured, and their suitability for a water pervaporation process was studied for possible application in water desalination systems. The effects of the following parameters on the average water flux were determined: membrane properties (diameter (0.4 mm to 1.8 mm) and wall thickness (0.05 mm to 0.18 mm)); charge density (0.6 meq/g); and operating conditions (brine inlet temperature (30 degree C to 68 degree C), air sweep velocity (0 m/s to 6 m/s), and salt concentration in the feed brine (0 M to 3 M)). A water flux of 0.8 kg/m2h was obtained using this type of hollow fiber with an inlet brine temperature of 25 degree C to 65 degree C. It was found that, for our application, the optimal specifications for the ion-exchange hollow fibers were an outside diameter of 1.2 mm, a wall thickness of 0.1 mm, and an ion-charge density of about 1.0 meq/g. This information is required as basic data for the design of a prototype water desalination system based on a pervaporation system that uses this type of ion-exchange hollow fiber membrane.


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    Titel :

    Hydrophilic hollow fiber membranes for water desalination by the pervaporation method


    Weitere Titelangaben:

    Hydrophile Hohlfaser-Membranen zur Wasserentsalzung mittels Pervaporationsmethode


    Beteiligte:
    Korin, E. (Autor:in) / Ladizhensky, I. (Autor:in) / Korngold, E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1996


    Format / Umfang :

    7 Seiten, 8 Bilder, 10 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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