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.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hydrophilic hollow fiber membranes for water desalination by the pervaporation method


    Additional title:

    Hydrophile Hohlfaser-Membranen zur Wasserentsalzung mittels Pervaporationsmethode


    Contributors:
    Korin, E. (author) / Ladizhensky, I. (author) / Korngold, E. (author)

    Published in:

    Publication date :

    1996


    Size :

    7 Seiten, 8 Bilder, 10 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Water desalination by pervaporation with hollow fiber membranes

    Korngold, E. / Korin, E. / Ladizhensky, I. | Tema Archive | 1996



    Hollow fine fiber vs. spiral-wound RO desalination membranes. Part 1: Pilot plant evaluation

    Butt, F.H. / Rahman, F. / Baduruthamal, U. | Tema Archive | 1997


    Water desalination by ion-echange hollow fibres

    Korngold, E. / Vofsi, D. | Tema Archive | 1991