PROBLEM TO BE SOLVED: To provide a blast water treatment apparatus capable of properly performing filtration treatment of ballast water while reducing load on a filter of a filtration device.SOLUTION: The ballast water treatment apparatus is provided that comprises a filtration device performing filtration treatment of ballast water flowed from the outside of a system and ultraviolet irradiation means killing microorganism contained in the filtration-treated ballast water with ultraviolet. The ballast water treatment apparatus further comprises transmittance measurement means measuring a transmittance of light in the ballast water and control means for adjusting flow rate of the ballast water caused to flow to the filtration device, the transmittance measurement means is configured to measure transmittance of a plurality of wavelength band including first and second wavelength in the ballast water, the control means conducts flow rate control for adjusting the flow rate based on transmittance of the plurality of wavelength bands.SELECTED DRAWING: Figure 1

    【課題】濾過装置のフィルタにかかる負担を小さくしつつ且つ適切にバラスト水を濾過処理することができるバラスト水処理装置を提供すること。【解決手段】本発明によれば、系外から流入したバラスト水を濾過処理する濾過装置と、前記濾過処理されたバラスト水に含有される微生物を紫外線により殺滅処理する紫外線照射手段とを備えたバラスト水処理装置であって、前記バラスト水における光の透過率を測定する透過率測定手段と、前記濾過装置に流通させる前記バラスト水の流量を調節する制御手段とを備え、前記透過率測定手段は、前記バラスト水における第1及び第2波長を含む複数の波長帯の透過率を測定するように構成され、前記制御手段は、前記複数の波長帯の透過率に基づいて前記流量を調節する流量制御を実行する、バラスト水処理装置が提供される。【選択図】図1


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    Title :

    BALLAST WATER TREATMENT APPARATUS


    Additional title:

    バラスト水処理装置


    Contributors:

    Publication date :

    2017-12-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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