PROBLEM TO BE SOLVED: To provide a ballast water treatment system comprising a plurality of ballast water treatment apparatuses, which can reduce cost of pressurizing means in backwash water feeding means for feeding backwash water to two kinds of backwash water jet nozzles.SOLUTION: A ballast water treatment system 100 comprises a plurality of ballast water treatment apparatuses 1 (1A, 1B) comprising: a filter for filtering inflow water W1 to be treated and allowing it to flow out to the outside as filtered water W2; first backwash water jet nozzles and second backwash water jet nozzles for jetting backwash water W2, W5 toward an outer peripheral surface of the filter; and backwash water feeding means 7 for selectively pressurizing the filtered water W2 flowing out from the filter during an operation of ballast water treatment or water W5 other than the filtered water as backwash water, and selectively feeding the pressurized water to the first backwash water jet nozzles or the second backwash water jet nozzles. A part or whole of the backwash water feeding means 7 is provided so as to be shared by the plurality of ballast water treatment apparatuses 1 (1A, 1B).SELECTED DRAWING: Figure 1

    【課題】バラスト水処理装置を複数備えるバラスト水処理システムにおいて、2種類の逆洗水噴射ノズルに供給する逆洗水供給手段における加圧手段のコストを削減できるシステムを提供する。【解決手段】流入した被処理水W1を濾過して濾過処理水W2として外部へ流出させるフィルタと、フィルタの外周面に向かって逆洗水W2,W5を噴射する第1逆洗水噴射ノズル及び第2逆洗水噴射ノズルと、バラスト水処理運転中のフィルタから流出する濾過処理水W2又は濾過処理水以外の水W5を、逆洗水として選択的に加圧して、第1逆洗水噴射ノズル又は第2逆洗水噴射ノズルに選択的に供給する逆洗水供給手段7と、を有するバラスト水処理装置1(1A,1B)を、複数備えるバラスト水処理システム100であって、逆洗水供給手段7の一部又は全体は、複数のバラスト水処理装置1(1A,1B)において共用されるように設けられる。【選択図】図1


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    Titel :

    BALLAST WATER TREATMENT SYSTEM


    Weitere Titelangaben:

    バラスト水処理システム


    Beteiligte:
    TANGE TOMOAKI (Autor:in)

    Erscheinungsdatum :

    2016-12-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B01D SEPARATION , Trennen



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