A filtering device includes, as a filter membrane, a pleated filter formed of a filter base having folds so as to repeat peak portions and valley portions, the pleated filter having a shape of a cylinder whose axial direction is a ridge line direction of the folds. In the filtering device, the pleated filter is rotatable about a cylindrical axis of the shape of the cylinder. The filtering device includes a nozzle that is provided so as to face an outer circumferential surface of the pleated filter and that ejects a liquid toward the outer circumferential surface. The relationships 4p ¤ W, and h/5 ¤ L ¤ h/2 are satisfied, where p represents a spacing between pleats and h represents a length in the ridge line direction, the length being effective for filtration, in the folds on the outer circumferential side of the pleated filter, and W represents an opening width in a direction perpendicular to the ridge line direction and L represents an opening length in the ridge line direction in an opening portion of the nozzle.


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    Title :

    FILTRATION DEVICE, BALLAST WATER TREATMENT METHOD, AND BALLAST WATER TREATMENT DEVICE USING SAID FILTRATION DEVICE


    Additional title:

    FILTRATIONSVORRICHTUNG, BALLASTWASSERBEHANDLUNGSVERFAHREN UND BALLASTWASSERBEHANDLUNGSVORRICHTUNG UNTER VERWENDUNG DER BESAGTEN FILTRATIONSVORRICHTUNG
    DISPOSITIF DE FILTRATION, PROCÉDÉ DE TRAITEMENT DE L'EAU D'UN BALLAST, ET DISPOSITIF DE TRAITEMENT DE L'EAU D'UN BALLAST UTILISANT LEDIT DISPOSITIF DE FILTRATION


    Contributors:

    Publication date :

    2017-01-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B01D SEPARATION , Trennen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63J Hilfsanlagen auf Schiffen , AUXILIARIES ON VESSELS / C02F Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm , TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE






    BALLAST WATER FILTRATION TREATMENT EQUIPMENT

    KANG JUNG IL / PARK YUN HA | European Patent Office | 2018

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    Ballast Water Treatment by Filtration

    Matheickal, J. T. / Waite, T. D. / Mylvaganam, S. T. et al. | British Library Conference Proceedings | 2003