A new desalination process consisting of air humidification by pervaporation through hydrophilic or microporous hydrophobic hollow fibers followed by dehumidification by cooling water was investigated. In this system hot water is passed through hollow fibers in a recycled air-sweep pervaporation process. The water is heated by waste heat or solar energy or by any other cheap source of energy. The flux of water through the hollow fibers is in the range of 1.5-3.0 l m-2 h-1, when water temperature is 45-65 deg C. The energy requirement for recycling hot water depends on water temperature as well as on the diameter and length of the hollow fibers. The energy requirement for air recycling depends on the air temperature and on the pressure drop of the system. The calculated energy requirement for pumping air and water in a pilot plant unit of a capacity of 6.3 l/h with 4 ml of anion-exchange hollow fibers was about 2 kWh/m3, when hot water temperature was 60 deg C.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Water desalination by pervaporation with hollow fiber membranes


    Additional title:

    Entsalzen von Wassser mit Hilfe des Wasserdampfdurchtritts durch Hohlfasermembranen


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

    Published in:

    Desalination ; 107 , 2 ; 121-129


    Publication date :

    1996


    Size :

    9 Seiten, 14 Bilder, 11 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Hydrophilic hollow fiber membranes for water desalination by the pervaporation method

    Korin, E. / Ladizhensky, I. / Korngold, E. | 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