Provided are a novel method and device for treating a liquid that are usable for treating ballast water used in a ship, etc. The liquid treatment method comprises: in supplying a liquid containing aquatic organisms, conducting an aquatic organism-inactivating treatment and/or a mechanical treatment using a centrifugal force, and storing the liquid in a storage means; and, in discharging the stored liquid, determining whether or not an aquatic organism-inactivating treatment is required, conducting the treatment on the basis of the determination result, and conducting a mechanical treatment using a centrifugal force. Due to this constitution, the liquid treatment method and device enable sufficient inactivation or separation of aquatic organisms that are contained in a liquid.


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    Title :

    Method for treating ballast water and device for treating ballast water used therefor



    Publication date :

    2015-07-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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    YAMAMOTO HIROSHI / EDAGAWA AKIYOSHI / SAKAKIBARA TAKASHI et al. | European Patent Office | 2018

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    METHOD FOR TREATING BALLAST WATER AND DEVICE FOR TREATING BALLAST WATER USED THEREFOR

    YAMAMOTO HIROSHI / EDAGAWA AKIYOSHI / SAKAKIBARA TAKASHI et al. | European Patent Office | 2019

    Free access

    Method for treating ballast water and device for treating ballast water used therefor

    YAMAMOTO HIROSHI / EDAGAWA AKIYOSHI / SAKAKIBARA TAKASHI et al. | European Patent Office | 2019

    Free access


    METHOD FOR TREATING BALLAST WATER AND DEVICE FOR TREATING BALLAST WATER USED THEREFOR

    YAMAMOTO HIROSHI / EDAGAWA AKIYOSHI / SAKAKIBARA TAKASHI et al. | European Patent Office | 2015

    Free access