PROBLEM TO BE SOLVED: To provide a ballast water treatment apparatus capable of irradiating ballast water with sufficient ultraviolet rays for sterilization when switching a ballast water destination from a ballast tank to another ballast tank.SOLUTION: A ballast water treatment apparatus 1 includes destination switching means V121, V122, V123 for switching destination ballast tanks 62 based on a switching signal, an ultraviolet rays irradiation unit 61 for irradiating filtered water W2 and/or stored water W3 with ultraviolet rays, flow rate regulating means P1, V1, V11 in the ultraviolet rays irradiation unit for regulating a flow rate of water passing the ultraviolet rays irradiation unit 61, and flow rate control means 9 for controlling the flow rate regulating means P1, V1, V11 in the ultraviolet rays irradiation unit so as to reduce the flow rate of water passing the ultraviolet irradiation unit 61 based on the switching signal.SELECTED DRAWING: Figure 1

    【課題】一のバラストタンクから他のバラストタンクへバラスト水の流通先を切替えたときに、バラスト水に対して紫外線を十分に照射して殺菌を行う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】バラスト水処理装置1は、切替信号に基づいて、流通先のバラストタンク62を切り替える流通先切替手段V121、V122、V123と、濾過処理水W2及び/又は貯留処理水W3に対して紫外線の照射を行う紫外線照射部61と、紫外線照射部61を通過する水の流量を調整する紫外線照射部通過流量調整手段P1、V1、V11と、切替信号に基づいて、紫外線照射部61を通過する水の流量を減少させるように紫外線照射部通過流量調整手段P1、V1、V11を制御する流量制御手段9と、を備える。【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 :

    2017-06-08


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



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