There is provided a ballast water treatment system and method that allows ballast water which is to be purified to receive a prescribed dose of ultraviolet rays even when the ballast water varies in transmittance. A ballast water treatment system (10) includes an ultraviolet irradiation device (23) which irradiates ballast water flowing through a treatment line (a pipe (34, 36)) with ultraviolet rays, and a control unit (100). The ultraviolet irradiation device (23) includes a light source which emits ultraviolet rays, and an illuminance sensor sensing an illuminance of ultraviolet rays received by the ballast water. The control unit (100) controls the ultraviolet irradiation device (23) to maintain at a prescribed dose a dose calculated using an illuminance (I) sensed by the illuminance sensor and a flow rate of ballast water which flows through the ultraviolet irradiation device (23). When the sensed dose cannot be maintained at the prescribed dose by controlling the ultraviolet irradiation device (23), the control unit (100) reduces a treatment flow rate of the ballast water which flows through the treatment line.


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    Titel :

    BALLAST WATER TREATMENT SYSTEM AND BALLAST WATER TREATMENT METHOD


    Weitere Titelangaben:

    BALLASTWASSERBEHANDLUNGSSYSTEM UND BALLASTWASSERBEHANDLUNGSVERFAHREN
    SYSTÈME DE TRAITEMENT D'EAUX DE BALLAST ET PROCÉDÉ DE TRAITEMENT D'EAUX DE BALLAST


    Beteiligte:
    HARADA RYOJI (Autor:in) / UEYAMA MUNETSUGU (Autor:in) / MIYATAKE KENICHIRO (Autor:in) / HAHAKURA SHUJI (Autor:in)

    Erscheinungsdatum :

    14.02.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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