PURPOSE: To provide a cleaning waste water treatment device of marine waste gas which temporally preserves scrubber waste water and lowers a contaminant concentration to a degree capable of discharging in sea during a time zone when the scrubber waste water is not generated.CONSTITUTION: A cleaning waste water treatment unit has a cleaning part for cleaning marine waste gas with scrubber water, an exhaust gas recirculation unit 1 for recirculating a part of waste gas to an engine of a ship to reduce an amount of a nitrogen oxide in a waste gas, a buffer tank 5 for storing scrubber waste water generated during the operation from the start to the stop of the scrubber cleaning operation using the exhaust gas recirculation unit 1, an EGR drain tank 13 for receiving and storing the waste water increased in the scrubber washing operation of the scrubber waste water in the buffer tank 5, a centrifugal separator 15 for introducing the scrubber waste water in the EGR drain tank 13 to clean by solid liquid separation, and a membrane unit 27 for further cleaning the scrubber water cleansed by the centrifugal separator 15.SELECTED DRAWING: Figure 1

    【目的】スクラバ排水を一時的に貯留し、スクラバ排水が発生しない時間帯に、海洋投棄できる程度まで汚染物質濃度を低下する船舶排ガスの洗浄排水処理装置を提供すること。【構成】船舶排ガスをスクラバ水で洗浄する洗浄部を有し、船舶のエンジンに排ガスの一部を再循環して排ガス中の窒素酸化物の量を減少させる排ガス再循環ユニット1と、排ガス再循環ユニット1を用いたスクラバ洗浄運転の始動から停止までの運転稼働中に発生したスクラバ排水を貯留するバッファタンク5と、バッファタンク5内のスクラバ排水のうちスクラバ洗浄運転において増量した排水を受け入れて貯留するEGRドレインタンク13と、EGRドレインタンク13内のスクラバ排水を、導入して固液分離の浄化を行う遠心分離機15と、遠心分離機15で浄化されたスクラバ水を更に浄化する膜装置27と、を有することを特徴とする。【選択図】図1


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    Titel :

    CLEANING WASTE WATER TREATMENT DEVICE OF MARINE WASTE GAS


    Weitere Titelangaben:

    船舶排ガスの洗浄排水処理装置


    Beteiligte:
    SAKURAI SOICHIRO (Autor:in) / ITOYAMA TAKESHI (Autor:in) / YOSHIDA KATSUUMI (Autor:in) / ONZO KOTARO (Autor:in)

    Erscheinungsdatum :

    2022-08-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    C02F Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm , TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE / B01D SEPARATION , Trennen / B04B Zentrifugen , CENTRIFUGES / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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