JP2001009215A - Device for separating/removing underwater suspended solid such as red tide and vessel for purifying water quality - Google Patents
Device for separating/removing underwater suspended solid such as red tide and vessel for purifying water qualityInfo
- Publication number
- JP2001009215A JP2001009215A JP11185063A JP18506399A JP2001009215A JP 2001009215 A JP2001009215 A JP 2001009215A JP 11185063 A JP11185063 A JP 11185063A JP 18506399 A JP18506399 A JP 18506399A JP 2001009215 A JP2001009215 A JP 2001009215A
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- JP
- Japan
- Prior art keywords
- water
- red tide
- filter medium
- underwater
- separating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Image Processing (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、海、湖沼、河川
などの開放水面および水面近くの水中懸濁物を除去する
ための赤潮等水中懸濁物の分離除去装置およびこの装置
を搭載した赤潮等水中懸濁物の水質浄化処理船に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating and removing an underwater suspension such as a red tide for removing an underwater suspension near or near an open water surface such as a sea, a lake or a river, and a red tide equipped with the apparatus. The present invention relates to a water purification treatment vessel for suspended water in water.
【０００２】[0002]
【従来の技術】海、湖沼、河川などの開放水面または水
面近くに滞留する懸濁物としては、赤潮と呼ばれる大量
に発生したプランクトンや火山灰その他の懸濁性のある
有機質または無機質の粒子が想定される。これらの懸濁
物は、水面近くに長時間漂って養殖場内または自然界に
生息する魚介類に被害を与えたり、生態系に悪影響を及
ぼす恐れがあるので、早急に除去することが好ましい。2. Description of the Related Art A large amount of plankton, volcanic ash and other suspended organic or inorganic particles, called red tide, are assumed to be suspended in the open water surface or near the water surface of the sea, lakes, marshes and rivers. Is done. These suspensions may float near the water surface for a long time and damage fish and shellfishes living in the farm or in the natural world, or may adversely affect the ecosystem. Therefore, it is preferable to remove these suspensions immediately.
【０００３】従来の赤潮等水中懸濁物の分離除去装置と
しては、赤潮プランクトンを含む海水をポンプで汲み上
げ、これに凝集剤を添加してプランクトンを沈澱させる
か、遠心分離して除去する装置、またはプランクトンに
付着性のある磁性粒子を混合し、これらを磁気フィルタ
に通過させて分離除去する装置が知られている。As a conventional apparatus for separating and removing underwater suspensions such as red tide, a seawater containing red tide plankton is pumped by a pump, and a flocculant is added thereto to precipitate plankton, or a centrifugal separator is used to remove the same. Alternatively, there is known an apparatus which mixes plankton with adherent magnetic particles and passes them through a magnetic filter to separate and remove them.
【０００４】上記したような従来の装置は、赤潮等水中
懸濁物を開放水面から除去する工程と、プランクトンと
水分の分離工程が全く別の操作でなされるものであり、
水質浄化処理船（清掃船とも称される。）の設備として
処理効率のよい簡単な機構であるとはいえない。In the conventional apparatus as described above, the step of removing suspended matter such as red tide from the open water surface and the step of separating plankton and water are performed by completely different operations.
It is not a simple mechanism with high treatment efficiency as a facility for a water purification treatment boat (also called a cleaning boat).
【０００５】また、比較的簡単な機構により処理効率の
高い方法としては、糸状体で紐を形成し、この紐で無端
環状のベルトを形成し、この無端環状ベルトが水面、水
中および水上を順に通過するように低速で回転させ、そ
の間に糸状体に赤潮、水の華、重油などを吸着させ、そ
の後に、前記ベルトから吸着物を掻き取って分離するよ
うにした水質浄化のための清掃船が知られている（特開
昭５３−１４２７９０号公報。）。[0005] In addition, as a method having a high processing efficiency by a relatively simple mechanism, a string is formed by a thread-like body, and an endless annular belt is formed by the string. A cleaning boat for water purification, which is rotated at a low speed so as to pass therethrough, during which red tide, water blossoms, heavy oil, etc. are adsorbed on the filament, and then the adsorbed material is scraped off from the belt and separated. Is known (JP-A-53-142790).
【０００６】[0006]
【発明が解決しようとする課題】ところで、上記従来の
赤潮等水中懸濁物の分離除去装置のうち、水質浄化処理
船に積み込み可能なものとしては、無端環状のベルトを
糸状体で形成したものがあるが、このものは単に毛管現
象を利用して吸着能力を高めたものであり、濾過によっ
て赤潮等水中懸濁物を付着させてこれを収集するもので
はない。Among the above-mentioned conventional apparatus for separating and removing suspended matter such as red tide, which can be loaded on a water purification treatment vessel, an apparatus in which an endless annular belt is formed of a thread is used. However, this is merely an enhancement of the adsorption capacity by utilizing the capillary phenomenon, and is not a method of attaching a suspension in water such as red tide by filtration to collect the suspension.
【０００７】また、赤潮等水中懸濁物を収集する場合、
濾材（フィルタ）の濾過面積は一定であり、濾過効率の
調整はできない。Further, when collecting underwater suspensions such as red tide,
The filtration area of the filter medium (filter) is constant, and the filtration efficiency cannot be adjusted.
【０００８】すなわち、水質浄化処理船が移動しながら
連続して濾過を行なうためには、赤潮等水中懸濁物が濃
厚な密度で存在する水域でも濾過を効率良く短時間に行
なう必要があるが、船上の濾過装置に濾過面積を広くし
て余裕をもたせることは困難であり、コンパクトな濾過
装置で効率よく連続濾過を行なえるものがなかった。That is, in order for the water purification treatment vessel to continuously perform filtration while moving, it is necessary to perform filtration efficiently and in a short time even in a water area where a suspended substance such as red tide is present at a high density. However, it is difficult to increase the filtration area of the on-board filtration device to provide a margin, and there has been no compact filtration device capable of performing continuous filtration efficiently.
【０００９】また、被処理水の濾過を効率よく行なうた
めには、濾材に付着した物を効率よく分離除去する必要
があるが、付着物を確実に効率よく除去することは容易
でなく、例えばスクレーパなどの物理的な除去手段は、
濾材表面を痛めやすいので好ましくない。Further, in order to efficiently filter the water to be treated, it is necessary to efficiently separate and remove the substances adhering to the filter medium. However, it is not easy to surely and efficiently remove the adhering substances. Physical removal means such as a scraper
It is not preferable because the surface of the filter medium is easily damaged.
【００１０】また、赤潮の存在する水域を自動的に認識
して接近し自動浄化処理する水質浄化処理船は、未だ開
発されていない。[0010] Further, there has not yet been developed a water purification treatment vessel for automatically recognizing and approaching a water area where a red tide is present and performing automatic purification treatment.
【００１１】そこで、この発明の課題は、上記した問題
点を解決して、赤潮等水中懸濁物を収集して分離除去す
る場合に、濾材の濾過効率を高め、または濾過効率を適
宜に変更できるようにし、赤潮等水中懸濁物の存在状況
に合わせて収集効率の調整を行ない得る赤潮等水中懸濁
物の分離除去装置とすることである。Therefore, an object of the present invention is to solve the above-mentioned problems and to increase the filtration efficiency of a filter medium or to change the filtration efficiency as appropriate when collecting and separating and removing suspensions in water such as red tide. It is an object of the present invention to provide an apparatus for separating and removing underwater suspensions such as red tide so that the collection efficiency can be adjusted according to the presence of underwater suspensions such as red tide.
【００１２】また、この発明の他の課題としては、濾材
に付着したものを分離除去する工程を濾材を傷めずに効
率よく行うことができる赤潮等水中懸濁物の分離除去装
置とすることである。Another object of the present invention is to provide an apparatus for separating and removing suspensions in water such as red tide which can efficiently perform a step of separating and removing substances attached to the filter medium without damaging the filter medium. is there.
【００１３】さらに、この発明の他の課題は、赤潮を自
動的に清掃可能な水質浄化処理船を提供することであ
る。Still another object of the present invention is to provide a water purification treatment boat capable of automatically cleaning red tide.
【００１４】[0014]
【課題を解決するための手段】上記の課題を解決するた
め、この発明においては、水槽に被処理水の取水口を設
け、前記水槽は前記取水口に対して直通する区域と帯状
の濾材を介して間接的に通じる区域に区分し、前記帯状
の濾材は無端環状に形成して水上および水中に配置され
た複数の回転ローラに巻き掛けて設けると共に、これら
の回転ローラに案内される濾材の回転駆動装置を設け、
前記水中の回転ローラに巻き掛けられて水面下で対向す
る２枚の濾材間にポンプの吸水口を配置し、前記濾材に
付着した赤潮等水中懸濁物含有の付着物層を剥離する剥
離装置を設けてなる赤潮等水中懸濁物の分離除去装置と
したのである。In order to solve the above-mentioned problems, according to the present invention, a water tank is provided with an intake port for water to be treated, and the water tank is provided with an area directly connected to the intake port and a band-shaped filter medium. The belt-shaped filter medium is formed in an endless annular shape and wound around a plurality of rotating rollers disposed on and in the water, and the filter medium is guided by these rotating rollers. Provide a rotary drive,
A peeling device that disposes a water-absorbing port of a pump between two filter media that are wound around the underwater rotating roller and face below the water surface, and peels off an adhering material layer containing an aqueous suspension such as red tide that adheres to the filter media. And a separation and removal device for suspended matter in water such as red tide.
【００１５】前記した剥離装置は、濾材表面の付着物層
に密接して回転可能な転写ドラムを有し、この転写ドラ
ムの周面に接するスクレーパを設けたものを採用するこ
とが付着物の分離除去効率を高めるために好ましい。The above-mentioned peeling device has a transfer drum which can rotate in close contact with the deposit layer on the surface of the filter medium, and employs a device provided with a scraper in contact with the peripheral surface of the transfer drum. It is preferable to increase the removal efficiency.
【００１６】また、上記した赤潮等水中懸濁物の分離除
去装置において、上昇する（すなわち上方へ移送され
る）濾材の表面に接する水面と、前記濾材の裏面に接す
る水面との水位差を検出するセンサーを設け、このセン
サーの指示により濾材の回転駆動装置の回転速度もしく
はポンプの吸水速度または両速度を調整する調整装置を
設けることが、濾過効率を安定させるために好ましい。Further, in the above-described apparatus for separating and removing suspended matter in water such as red tide, a water level difference between a water surface in contact with the surface of the ascending (that is, transported upward) filter material and a water surface in contact with the back surface of the filter material is detected. In order to stabilize the filtration efficiency, it is preferable to provide a sensor for adjusting the rotation speed of the filter drive and / or the water absorption speed of the pump according to the instruction of the sensor.
【００１７】また、前記の課題を解決するために、前記
した赤潮等水中懸濁物質の分離除去装置を搭載した赤潮
等水中懸濁物の水質浄化処理船としたのである。Further, in order to solve the above-mentioned problems, a water purification treatment vessel for red tide or other underwater suspended matter equipped with the above-described apparatus for separating and removing red tide and other suspended matter in water is provided.
【００１８】この発明の赤潮等水中懸濁物の分離除去装
置は、取水口に対して直通する区域とシート状の濾材を
介して間接的に通じる区域に水槽を区分しているので、
取水口に直通する区域には、赤潮等水中懸濁物を含む被
処理水が収容される。そして、シート状の濾材を介して
取水口に間接的に通じる区域の水圧をポンプの排水によ
って低くすることにより、赤潮等の懸濁物を含む水が濾
材を通過し、濾材の表面に赤潮等水中懸濁物が付着す
る。In the apparatus for separating and removing underwater suspensions such as red tide of the present invention, the water tank is divided into an area directly communicating with the intake port and an area indirectly communicating with the sheet-like filter medium.
In the area directly connected to the intake port, the water to be treated including underwater suspensions such as red tide is stored. Then, by lowering the water pressure of the area indirectly communicating with the water intake through the sheet-like filter medium by the drainage of the pump, water containing suspended matter such as red tide passes through the filter medium and the surface of the filter medium, such as red tide, A suspension in water adheres.
【００１９】また、帯状の濾材を無端環状に形成して複
数の回転ローラに巻き掛けているので、濾材の長さや幅
および回転ローラの数や配置を適宜に変更することによ
り、簡単に濾過面積を変更して濾過効率を調整すること
ができる。Further, since the belt-shaped filter medium is formed in an endless ring and wound around a plurality of rotating rollers, the filtering area can be easily changed by appropriately changing the length and width of the filter medium and the number and arrangement of the rotating rollers. Can be changed to adjust the filtration efficiency.
【００２０】そして、無端環状のシート状濾材のうち、
水中の回転ローラに巻き掛けられて水面下で対向する２
枚の濾材間にポンプの吸水口を配置しているので、前記
ポンプの吸水口から強制的に排水されると、前記２枚の
濾材間の水圧が減少し、その圧力差で取水口から流入し
濾材を透過する水量が増して濾過効率を向上させること
ができる。And among the endless annular sheet-like filter media,
It is wrapped around a rotating roller underwater and faces under the water surface 2
Since the water inlet of the pump is arranged between the two filter media, if the water is forcibly drained from the water inlet of the pump, the water pressure between the two filter media will decrease, and the pressure difference will cause the water to flow in from the water intake. The amount of water permeating through the filter medium is increased, and the filtration efficiency can be improved.
【００２１】ポンプの吸水速度が２枚の濾材間の濾過速
度を越えるようにすると、前記２枚の濾材の間の水位が
２枚の濾材より外側の水位に比べて低くなり、２枚の濾
材の外側に接する水面近くの水が２枚の濾材の間に流入
するので、水面近くの赤潮等水中懸濁物が効率よく濾材
に付着する。When the water absorption rate of the pump exceeds the filtration rate between the two filter media, the water level between the two filter media becomes lower than the water level outside the two filter media, and the two filter media become lower. Since the water near the water surface in contact with the outside of the water flows between the two filter media, the suspended material such as red tide near the water surface efficiently adheres to the filter media.
【００２２】そして、上昇する濾材の表面に接する水面
と、前記濾材の裏面に接する水面との水位差を検出する
センサーの指示により、濾材の回転駆動装置の回転速度
もしくはポンプの吸水速度または両速度を調整装置で調
節すると、２枚の濾材の内側と外側の水圧差を一定に保
って濾過効率を安定させ、常に適量の付着物層を濾材表
面に堆積させることができる。Then, according to an instruction of a sensor for detecting a water level difference between a water surface in contact with the surface of the ascending filter medium and a water surface in contact with the back surface of the filter medium, the rotation speed of the rotation drive device for the filter medium, the water absorption speed of the pump, or both speeds Is adjusted by the adjusting device, the difference in water pressure between the inside and the outside of the two filter media is kept constant to stabilize the filtration efficiency, and an appropriate amount of the deposit layer can always be deposited on the surface of the filter media.
【００２３】このようにして、水上の濾材表面に効率よ
く安定した厚さに形成される赤潮等水中懸濁物含有の付
着物層は、次に剥離装置によって剥離されて船内のタン
クなどに収集される。The adhering layer containing the suspended matter in water such as red tide, which is efficiently formed to a stable thickness on the surface of the filter medium above water, is then separated by a separating device and collected in a tank or the like on the ship. Is done.
【００２４】剥離装置の最も好ましい例は、濾材表面の
付着物層をその粘着性によって転写ドラムに転写し、こ
の転写ドラムの周面からスクレーパではぎ取るものであ
り、このものは、スクレーパが直接に濾布等の柔らかい
濾材表面に接しないので、濾材が傷まず、しかも効率よ
く付着物を剥離できる。The most preferable example of the peeling device is a device in which the deposit layer on the surface of the filter medium is transferred to a transfer drum by its adhesiveness, and is peeled off from the peripheral surface of the transfer drum by a scraper. Since it does not come into contact with the surface of a soft filter medium such as a filter cloth, the filter medium is not damaged, and the attached matter can be efficiently removed.
【００２５】また、水中懸濁物に赤潮プランクトンの含
有率が高い場合は、プランクトンの体表面に滲み出す粘
着性物質が凝集剤または粘着剤として作用し、転写ドラ
ムに効率よく付着物層を転写することができる。When the content of red tide plankton in the suspension in water is high, the sticky substance oozing on the body surface of plankton acts as a coagulant or an adhesive, and the adhered substance layer is efficiently transferred to the transfer drum. can do.
【００２６】以上のような赤潮等水中懸濁物質の分離除
去装置は、水質浄化処理船に搭載されて稼働することに
より、効率よく船外の被処理水を取り入れて赤潮等水中
懸濁物を効率よく分離しかつ除去することができる。The above-described apparatus for separating and removing suspended substances such as red tide is mounted on a water purification treatment vessel and operates to efficiently take in the water to be treated outside the vessel to remove suspended substances such as red tide. It can be separated and removed efficiently.
【００２７】上記水質浄化処理船においては、濾過効率
向上のための吸水に使用したポンプから排水される濾過
水を船体から水中に噴射する噴射装置を設け、この噴射
装置の水流を船体の推進または姿勢制御に有効利用し、
水質浄化処理船を駆動するための動力を節減することが
できる。In the above-mentioned water purification treatment vessel, an injection device for injecting filtered water drained from a pump used for water absorption for improving filtration efficiency from the hull into the water is provided, and the water flow of the injection device is used to propel the hull. Effectively used for attitude control,
The power for driving the water purification treatment vessel can be saved.
【００２８】上記の水質浄化処理船に、自動航行装置を
取り付けると共に、複数台のデジタルビデオカメラおよ
びこのデジタルビデオカメラで撮影された画像データの
処理装置を設け、この画像データの処理装置で認識され
た赤潮水域の方角および距離の情報を推進装置制御シス
テムを介して前記自動航行装置に伝達するようにすれ
ば、自動的に赤潮発生域で効率よく稼働する赤潮等水中
懸濁物の水質浄化処理船になる。An automatic navigation device is mounted on the water purification treatment vessel, and a plurality of digital video cameras and a processing device for image data photographed by the digital video camera are provided. If the information on the direction and distance of the red tide water area is transmitted to the automatic navigation device via the propulsion device control system, the water purification processing of the red tide or other underwater suspension that automatically operates efficiently in the red tide generation area is automatically performed. Become a ship.
【００２９】[0029]
【発明の実施の形態】この発明の実施形態を以下に添付
図面に基づいて説明する。図１〜５に示した第１実施形
態は、赤潮等水中懸濁物の分離除去装置１を搭載した赤
潮等水中懸濁物の水質浄化処理船２に関するものであ
る。Embodiments of the present invention will be described below with reference to the accompanying drawings. The first embodiment shown in FIGS. 1 to 5 relates to a water purification treatment boat 2 equipped with an apparatus 1 for separating and removing underwater suspensions such as red tide.
【００３０】図１〜４に示すように、赤潮等水中懸濁物
の収集装置１は、船内の水槽３に被処理水（船外水）の
取水口４を設け、水槽３は取水口４に対して直通する区
域と帯状の濾材５を介して間接的に通じる区域に区分
し、帯状の濾材５は、水槽を仕切る所定幅に形成すると
共に、無端環状に形成して水上および水中に配置された
複数の回転ローラ６に巻き掛け、これらの回転ローラ６
を駆動する回転駆動装置（図示せず。）を設けている。
そして、水中の回転ローラ６に巻き掛けられて水面下で
対向する２枚の濾材５ａ、５ｂ間にポンプ７に通じる吸
水口８を配置し、水上の濾材５に接してこれに付着した
赤潮等水中懸濁物含有の付着物層９を転写して剥離する
剥離装置１０を設けている。As shown in FIGS. 1 to 4, the apparatus 1 for collecting underwater suspensions such as red tide has an intake 4 for water to be treated (outboard water) in a water tank 3 in the ship, and the water tank 3 has an intake 4 Is divided into an area that directly communicates with the area and an area that indirectly communicates through the band-shaped filter medium 5, and the band-shaped filter medium 5 is formed to have a predetermined width for partitioning the water tank, and is formed in an endless annular shape and arranged on water and in water. Are wound around the plurality of rotating rollers 6, and these rotating rollers 6
Is provided with a rotary drive device (not shown) for driving.
Then, a water inlet 8 communicating with the pump 7 is disposed between the two filter media 5a and 5b which are wound around the underwater rotary roller 6 and face below the surface of the water. A peeling device 10 is provided for transferring and peeling off the adhesion layer 9 containing the suspension in water.
【００３１】前記した取水口４には、船外の被処理水を
船体の前進時に取り入れやすいように、舳先に設け、水
槽で収集不可能な大きな物体を取り込まないように、多
数の縦棒を並列させたバースクリーンを付設している。The water intake 4 is provided at the bow so that the water to be treated outside the boat can be easily taken in when the hull is moving forward, and a number of vertical rods are provided so as not to take in large objects that cannot be collected in the water tank. Bar screens are provided side by side.
【００３２】帯状の濾材５は、各種の編織物などからな
る濾布または合成樹脂製ネット等からなり、濾布の材質
の例としては、ポリプロピレン繊維やナイロン繊維など
の合成繊維、天然繊維、ガラス繊維等からなる編織布が
挙げられる。また、濾材５の目合いは、分離除去処理の
対象とする懸濁物質の種類（粒径）に応じて、ある程度
特定したものを採用することが好ましく、赤潮生物（主
としてペリディニウム属、プロロセントルム属やエクス
ビエラ属などの渦鞭毛藻類その他の植物プランクトン）
を主な処理対象物とする場合には、数十μｍ（例えば２
０〜６０μｍ）の目合いの濾布が好ましい。また、赤潮
生物以外の懸濁物質としては、火山灰などの多孔質性の
無機質微細粒子、粒子状の動・植物体その他の有機質粒
子が想定される。The band-shaped filter medium 5 is made of a filter cloth made of various knitted fabrics or a net made of a synthetic resin. Examples of the material of the filter cloth include synthetic fibers such as polypropylene fibers and nylon fibers, natural fibers, and glass. Knitted fabrics made of fibers and the like are included. Also, it is preferable to employ a filter medium 5 that has been specified to some extent in accordance with the type (particle size) of the suspended substance to be subjected to the separation / removal treatment, and a red tide organism (mainly a genus Peridinium or Prolocentrum). Dinoflagellates and other phytoplankton, such as genus Exviera
Is the main processing object, several tens μm (for example, 2
(0 to 60 μm) is preferable. In addition, as suspended substances other than red tide organisms, porous inorganic fine particles such as volcanic ash, particulate animals and plants, and other organic particles are assumed.
【００３３】濾材５の回転駆動装置は、電動モータ等の
原動機とその回転力を回転ローラ６に伝達する伝動機構
とからなり、伝動機構において変速ギア装置で適当な速
度に設定される。The rotation driving device for the filter medium 5 is composed of a prime mover such as an electric motor and a transmission mechanism for transmitting its rotational force to the rotary roller 6, and the transmission mechanism is set to an appropriate speed by a transmission gear device.
【００３４】図３および図４に示すように、濾材５を案
内する回転ローラ６は、濾材５が水中に複数回出没する
ように上下に複数対（図３では２対）となるように適当
に配置され、そのうち水面下で対向する２枚一組の濾材
５ａ、５ｂで仕切られた区域には、ポンプ７に通じる配
管１１の吸水口８を配置している。As shown in FIG. 3 and FIG. 4, the rotating rollers 6 for guiding the filter medium 5 are appropriately arranged such that the filter medium 5 is formed in plural pairs (two pairs in FIG. 3) up and down so that the filter medium 5 appears and disappears plural times in water. In a section partitioned by a pair of filter media 5a and 5b facing each other below the water surface, a water inlet 8 of a pipe 11 leading to the pump 7 is arranged.
【００３５】そして、２枚の濾材５のうち、上昇する濾
材５ａの表面に接する水面と、濾材５ａの裏面に接する
水面に向けて超音波または水圧で所定の水位差を感知す
るセンサー１２を設け、このセンサー１２の指示により
回転駆動装置の回転速度もしくはポンプ７の吸水速度ま
たは両速度を調整する調整装置１３を設けている。A sensor 12 for detecting a predetermined water level difference by ultrasonic waves or water pressure is provided between the water surface in contact with the surface of the rising filter material 5a and the water surface in contact with the back surface of the filter material 5a. An adjusting device 13 is provided for adjusting the rotational speed of the rotary driving device, the water absorption speed of the pump 7, or both speeds in accordance with instructions from the sensor 12.
【００３６】回転駆動装置の回転速度を調整する場合に
は、剥離装置１０の転写ドラム１４などの回転速度を検
出し、この回転速度を増減させて前記水位差が所定数値
に近づくように制御装置を動作させて回転駆動装置を制
御し、回転速度を調整するようにしている。When adjusting the rotation speed of the rotation drive device, the rotation speed of the transfer drum 14 of the peeling device 10 is detected, and the rotation speed is increased or decreased so that the water level difference approaches a predetermined value. Is operated to control the rotation driving device to adjust the rotation speed.
【００３７】剥離装置１０は、水面から上昇する濾材５
が搬送する赤潮等懸濁物の付着物層９に圧接するように
配置される転写ドラム１４と、その外周面に接するよう
に板状のスクレーパ（はぎ取り板）１５を固定して設け
たものであり、前記転写ドラム１４の外周面はゴムまた
はステンレス鋼で形成している。図４に示すように、多
量の植物性プランクトンを含む付着物層９の付着力は、
多孔質で粗面の濾材５に対するよりも金属等の緻密な材
質からなる転写ドラム１４の外周面に対する方が大きく
付着物９は転写ドラム１４に確実に転写される。このと
き、植物性プランクトンに特有の粘着性も漉し取られた
濾材５上で高まっているために転写ドラムに対する付着
（移着）性は高まると考えられる。そして、転写ドラム
１４は、表面が緻密なものであればよく、金属やセラミ
ックス等の硬質材料その他の摩耗損傷し難い材料で形成
でき、スクレーパ１５を表面に接するように配置すれば
確実に付着物９をはぎ取ることができる。スクレーパ１
５は、金属、ゴム、木材、プラスチックなどからなり、
所要強度を有する板状の部品である。The peeling device 10 is provided with a filter medium 5 rising from the water surface.
The transfer drum 14 is disposed so as to be in pressure contact with the adhering material layer 9 of suspended matter such as red tide, and the plate-shaped scraper (stripping plate) 15 is fixed so as to be in contact with the outer peripheral surface thereof. The outer peripheral surface of the transfer drum 14 is formed of rubber or stainless steel. As shown in FIG. 4, the adhesion of the deposit layer 9 containing a large amount of phytoplankton is
The attached matter 9 is reliably transferred to the transfer drum 14 on the outer peripheral surface of the transfer drum 14 made of a dense material such as metal, more than on the porous and rough filter medium 5. At this time, it is considered that the adhesiveness (transfer) to the transfer drum is increased because the adhesiveness specific to phytoplankton is also increased on the filtered filter medium 5. The transfer drum 14 only needs to have a dense surface, and can be formed of a hard material such as metal or ceramics, or any other material that is unlikely to be damaged by abrasion. 9 can be stripped off. Scraper 1
5 is made of metal, rubber, wood, plastic, etc.
It is a plate-shaped part having the required strength.
【００３８】剥離装置１０を通過した後の濾材５の表面
には、少量の付着物が残存するが、これは濾材５の裏面
から別途設けた水の噴出装置１６で洗浄（逆洗）するこ
とが濾過効率を高めるために好ましい。Although a small amount of adhered substance remains on the surface of the filter medium 5 after passing through the peeling device 10, it is necessary to wash (backwash) the water from the back surface of the filter medium 5 with a water jetting device 16 provided separately. Is preferred for increasing the filtration efficiency.
【００３９】図５に示すように、ポンプ７で吸引された
水を船上で有効に利用するためには、船体の左右両舷側
から水中に噴射する噴射装置１７を設け、この噴射装置
１７の噴射水流を船体の推進または姿勢制御に利用す
る。As shown in FIG. 5, in order to effectively use the water sucked by the pump 7 on the ship, an injection device 17 for injecting water into the water from both sides of the hull is provided. The water flow is used for hull propulsion or attitude control.
【００４０】図示した配置・配管図では、水槽３からポ
ンプ７で吸引された水は、背圧調整用の絞り弁１８を介
して船尾から空中に放出されるか、または水流調整用サ
ーボ弁１９を介して適当な水圧で左右両舷側の噴射装置
１７の後進用ノズルまたは前進用ノズルに送られる。な
お、図中番号２０は、左右独立した主スラスター、図中
番号２１は制御装置を示しており、図中番号２２は、水
質浄化の作業を行わずに水質浄化処理船を推進させる場
合の濾過水と船外の被処理水（原水）の切り替え弁を示
している。In the illustrated arrangement / pipe diagram, the water sucked by the pump 7 from the water tank 3 is discharged into the air from the stern through the throttle valve 18 for adjusting the back pressure, or the servo valve 19 for adjusting the water flow. Through the jetting device 17 on both the left and right sides at an appropriate water pressure. In the drawing, reference numeral 20 denotes a left and right independent main thruster, reference numeral 21 denotes a control device, and reference numeral 22 denotes a filter for propelling a water purification treatment vessel without performing water purification work. A switching valve for switching between water and treated water (raw water) outside a ship is shown.
【００４１】また、図６に示した第２実施形態は、第１
実施形態で説明した水上および水中に配置される対の回
転ローラ６を複数対（５対）設け、無端環状で水槽を仕
切る所定幅で帯状の濾材５の５箇所で濾過機能を作用さ
せるものである。Further, the second embodiment shown in FIG.
A plurality of (five) pairs of rotating rollers 6 arranged above and below the water described in the embodiment are provided, and the filtering function is applied to five places of the endless annular band-shaped filter medium 5 having a predetermined width and partitioning the water tank. is there.
【００４２】このようにして、回転ローラ６の数や配置
を適宜に変更して、濾過面積を適当に変更し、分離除去
装置の濾過機能を簡単に変更することができる。In this way, the number and arrangement of the rotating rollers 6 can be changed appropriately, the filtering area can be changed appropriately, and the filtering function of the separation and removal device can be easily changed.
【００４３】また、図７に示した第３実施形態は、第１
実施形態で説明した分離除去装置において、水面下で対
向する２枚の濾材間にバイパスを配置すると共に、船尾
に開放された水槽２３の後部にスクリュー式のスラスタ
ー２４を設けたものである。Further, the third embodiment shown in FIG.
In the separation and removal apparatus described in the embodiment, a bypass is arranged between two filter media facing each other below the water surface, and a screw type thruster 24 is provided at a rear portion of a water tank 23 opened to the stern.
【００４４】このようにすると、スラスター２４が吸水
ポンプの作用をするので、複数枚の濾材を介して多面濾
過を行うことができ、濾材の目合を捕捉対象の赤潮等懸
濁物質の粒径より比較的大きくしても処理を効率よく行
うことができる。In this case, since the thruster 24 functions as a water absorption pump, multi-sided filtration can be performed through a plurality of filter media, and the size of the filter media is determined by the particle size of the suspended substance such as red tide to be captured. Even if the size is relatively large, the processing can be performed efficiently.
【００４５】この発明におけるデジタルビデオカメラと
画像データ処理装置と自動航行装置の制御経路につい
て、以下に説明する。The control paths of the digital video camera, the image data processing device and the automatic navigation device according to the present invention will be described below.
【００４６】図１および図２に示すように、水質浄化処
理船には、周知の自動航行装置（図示せず）、２台のＤ
−ＧＰＳ（差動位置表示システム：静止衛生を用いた高
精度位置表示システム）および蛍光光度計２５が取り付
けられており、２台またはそれ以上のデジタルビデオカ
メラ２６およびこれらのデジタルビデオカメラで撮影さ
れた画像データを処理する処理装置２７が取り付けられ
ている。画像データの処理装置２７は、コンピュータ内
部のシステムプログラムとして距離計算部、スペクトル
解析部、赤潮認識部、推進装置制御部を有しており、認
識された赤潮水域の方角および距離の情報を推進装置制
御部を介して前記自動航行装置に伝達する。なお、この
ようなシステムは、取水口４に取り付けた投げ込み式の
蛍光光度計（市販品）２５をセンサーに用いて適宜に起
動することができる。As shown in FIGS. 1 and 2, the water purification treatment vessel has a well-known automatic navigation device (not shown) and two D
-A GPS (differential position display system: high accuracy position display system using stationary hygiene) and a fluorimeter 25 are attached, and two or more digital video cameras 26 and images are taken by these digital video cameras A processing device 27 for processing the processed image data is attached. The image data processing device 27 has a distance calculation unit, a spectrum analysis unit, a red tide recognition unit, and a propulsion device control unit as system programs inside the computer, and transmits information on the direction and distance of the recognized red tide water area to the propulsion device. The information is transmitted to the automatic navigation device via the control unit. In addition, such a system can be suitably started using a throw-in type fluorometer (commercially available) 25 attached to the water intake 4 as a sensor.
【００４７】すなわち上記システムは、図８（図１、図
２も参照。）に示すように、左舷側と右舷側に配置され
た２台のデジタルビデオカメラ２６（比較側と基準側）
を用いて水質浄化処理船の周囲の水面を一定間隔で一定
角度毎に水平回転させながら撮影し、得られた一定区画
ごとの画像データの距離を画像データ処理装置（コンピ
ュータ）の距離計算部で算出する。そして、スペクトル
解析部で一定区画ごとのスペクトル情報を算出し、赤潮
認識部でこれらの色彩を判別して赤潮発生域を認識す
る。That is, as shown in FIG. 8 (see also FIGS. 1 and 2), the above system comprises two digital video cameras 26 (comparison side and reference side) arranged on the port side and the starboard side.
The water surface around the water purification treatment boat is photographed while rotating horizontally at regular intervals at regular intervals, and the distance of the obtained image data for each constant section is calculated by the distance calculation unit of the image data processing device (computer). calculate. Then, the spectrum analysis unit calculates the spectrum information for each fixed section, and the red tide recognition unit recognizes these colors to recognize the red tide occurrence area.
【００４８】前記距離計算部では、距離の算出を左右の
画像データからステレオ法によって算出する。すなわ
ち、一定区画に分割した左右の画像データを１区画毎に
ずらし、類似度の最も高い組み合わせを求めることによ
ってマッチング処理を行ない、三角測量法の原理で、そ
の区画の距離を算出する。The distance calculator calculates the distance from the left and right image data by the stereo method. That is, the left and right image data divided into a certain section are shifted for each section, a matching process is performed by obtaining a combination having the highest similarity, and the distance between the sections is calculated based on the principle of triangulation.
【００４９】前記赤潮認識部では、下記の手法によって
識別を行なう。すなわち、赤潮生物（プランクトン）で
懸濁した水は、赤褐色乃至茶褐色を呈して通常の水の色
とは異なった色調であるから、画像スペクトル解析によ
って赤潮発生水域と通常水域との識別が可能である。ス
ペクトル解析部では、一定区画ごとにスペクトル解析を
行ない、赤潮の発生場所と通常水域に区分する。また、
対象スペクトルの強度によって区画内の赤潮生物量を求
めることもできる。このようなシステムは、赤潮以外の
懸濁物質に対しても同様に機能させることができる。The red tide recognizing unit performs the following identification. That is, water suspended in red tide organisms (plankton) has a reddish brown or brownish color and a different color from ordinary water. Therefore, it is possible to discriminate red tide occurrence water areas from normal water areas by image spectrum analysis. is there. The spectrum analysis unit performs spectrum analysis for each fixed section and classifies the area into a red tide occurrence location and a normal water area. Also,
The red tide biomass in the plot can also be determined from the intensity of the target spectrum. Such a system can work for suspended matter other than red tide as well.
【００５０】船上に２台のＤ−ＧＰＳが搭載されている
場合、赤潮認識部において距離計算部およびスペクトル
解析部により算出された情報と、２台のＤ−ＧＰＳによ
り計算された船体（赤潮等懸濁物質の分離除去装置）の
位置座標および方位（向き）の情報とを総合し、赤潮発
生水域の範囲とその位置座標、さらには懸濁物質量など
を求める。When two D-GPSs are mounted on the ship, the information calculated by the distance calculation unit and the spectrum analysis unit in the red tide recognition unit and the hull calculated by the two D-GPSs (such as the red tide) The information of the position coordinates and the direction (direction) of the apparatus for separating and removing suspended matter is integrated to determine the range of the red tide generating water area and its position coordinates, and further, the amount of suspended matter and the like.
【００５１】なお、赤潮等懸濁物質の発生水域への水質
浄化処理船の移動は、簡略にＤ−ＧＰＳを使用すること
なく方角と距離情報からのみによって行なってもよく、
この場合には前記座標の算出を行なう必要がない。The movement of the water purification treatment vessel to the water area where suspended substances such as red tide are generated may be performed simply based on the direction and distance information without using D-GPS.
In this case, it is not necessary to calculate the coordinates.
【００５２】以上のようにして、赤潮認識部から得られ
た赤潮発生水域の位置情報を基にして、既成の自動航行
装置を起動させ、赤潮等懸濁物質の発生水域へ水質浄化
処理船を速やかにかつ自動的に移動させることができ
る。As described above, based on the position information of the red tide generating water area obtained from the red tide recognition unit, the existing automatic navigation device is activated, and the water purification treatment vessel is transferred to the water area where red tide and other suspended substances are generated. It can be moved quickly and automatically.
【００５３】[0053]
【発明の効果】この発明は、以上説明したように、帯状
の濾材を無端環状に形成して水上および水中に配置され
た複数の回転ローラに巻き掛けたので、濾材の長さや
幅、および回転ローラの数や配置を適宜に変更し、濾過
面積を変更して濾過効率を調整することができる赤潮等
水中懸濁物の分離除去装置になる。As described above, according to the present invention, a belt-shaped filter medium is formed in an endless annular shape and wound around a plurality of rotating rollers disposed on and in water, so that the length, width, and rotation of the filter medium can be improved. A device for separating and removing suspended matter in water such as red tide which can adjust the filtration efficiency by appropriately changing the number and arrangement of the rollers and changing the filtration area.
【００５４】また、水面下で対向する２枚の濾材間にポ
ンプの吸水口を配置したことにより、濾過効率に優れた
赤潮等水中懸濁物の分離除去装置になる。Further, by disposing the water suction port of the pump between the two filter media opposing each other below the water surface, the device for separating and removing suspended substances such as red tide in water having excellent filtration efficiency can be obtained.
【００５５】上昇する濾材の表面と裏面に接する水面の
水位差を検出するセンサーを設け、ポンプの吸水速度や
濾材の回転速度を調整した発明では、濾過効率が安定
し、赤潮等水中懸濁物の存在状況に合わせて処理効率の
調整を行なうことができる赤潮等水中懸濁物の分離除去
装置になる。In the invention in which a sensor for detecting a water level difference between the surface of the rising filter medium and the surface of the water in contact with the rear surface is provided, and the water absorption speed of the pump and the rotation speed of the filter medium are adjusted, the filtration efficiency is stabilized, It is a device for separation and removal of suspended matter such as red tide in the water, which can adjust the treatment efficiency according to the existence state of the water.
【００５６】剥離装置として、付着物層を転写ドラムか
らスクレーパではぎ取るものを採用すれば、濾材を傷め
ずに効率よく付着物を除去できる。If a device for stripping the deposit layer from the transfer drum with a scraper is adopted as the peeling device, the deposit can be removed efficiently without damaging the filter medium.
【００５７】上記したような種々の利点を有する赤潮等
水中懸濁物質の分離除去装置は、水質浄化処理船に搭載
された場合に、特に効率よく赤潮等水中懸濁物を分離除
去処理することができる。The above-described apparatus for separating and removing suspended substances such as red tide having various advantages as described above is particularly effective in separating and removing suspended substances such as red tide in water when mounted on a water purification treatment vessel. Can be.
【００５８】上記水質浄化処理船においては、分離除去
装置のポンプから排水される濾過水の水流を船体の推進
または姿勢制御に有効利用し、水質浄化処理船を駆動す
るための動力を節減することができる。In the water purification treatment vessel, the flow of the filtered water discharged from the pump of the separation and removal device is effectively used for propulsion or attitude control of the hull, and power for driving the water purification treatment vessel is reduced. Can be.
【００５９】上記の水質浄化処理船に、自動航行装置と
デジタルビデオカメラおよび画像データの処理装置を設
けた発明では、自動的に効率よく移動しかつ作動する赤
潮等水中懸濁物の水質浄化処理船となる。According to the invention in which the above-mentioned water purification treatment vessel is provided with an automatic navigation device, a digital video camera and a processing device for image data, the water purification treatment of suspended water such as red tide which automatically moves and operates efficiently. Become a ship.
【図１】第１実施形態の赤潮等水中懸濁物の水質浄化処
理船の概略側面図FIG. 1 is a schematic side view of a boat for purifying water suspended in water such as red tide according to a first embodiment.
【図２】第１実施形態の赤潮等水中懸濁物の水質浄化処
理船の概略平面図FIG. 2 is a schematic plan view of a water purification treatment boat for suspended matter in water such as red tide according to the first embodiment.
【図３】第１実施形態の赤潮等水中懸濁物の分離除去装
置の概略側面図FIG. 3 is a schematic side view of the apparatus for separating and removing suspended matter in water such as red tide according to the first embodiment;
【図４】第１実施形態の赤潮等水中懸濁物の分離除去装
置における剥離装置の概略側面図FIG. 4 is a schematic side view of a peeling device in the device for separating and removing underwater suspensions such as red tide according to the first embodiment;
【図５】第１実施形態の赤潮等水中懸濁物の水質浄化処
理船の推進又は姿勢制御機構の説明図FIG. 5 is an explanatory diagram of a propulsion or attitude control mechanism of the water purification treatment boat for water suspension such as red tide according to the first embodiment;
【図６】第２実施形態の赤潮等水中懸濁物の分離除去装
置の概略側面図FIG. 6 is a schematic side view of an apparatus for separating and removing suspensions in water such as red tide according to a second embodiment.
【図７】第３実施形態の赤潮等水中懸濁物の分離除去装
置の概略側面図FIG. 7 is a schematic side view of an apparatus for separating and removing suspended matter such as red tide according to a third embodiment.
【図８】デジタルビデオカメラと画像データ処理装置と
自動航行装置の制御経路の流れ図FIG. 8 is a flowchart of control paths of a digital video camera, an image data processing device, and an automatic navigation device.
１ 赤潮等水中懸濁物の分離除去装置 ２ 水質浄化処理船 ３、２３ 水槽 ４ 取水口 ５、５ａ、５ｂ 濾材 ６ 回転ローラ ７ ポンプ ８ 吸水口 ９ 付着物層 １０ 剥離装置 １１ 配管 １２ センサー １３ 調整装置 １４ 転写ドラム １５ スクレーパ １６ 水の噴出装置 １７ 噴射装置 １８ 絞り弁 １９ 水流調整用サーボ弁 ２０ 主スラスター ２１ 制御装置 ２２ 切り換え弁 ２４ スラスター ２５ 蛍光光度計 ２６ デジタルビデオカメラ DESCRIPTION OF SYMBOLS 1 Separation removal apparatus of underwater suspensions, such as red tide, etc. 2 Water purification treatment boat 3, 23 Water tank 4 Intake port 5, 5a, 5b Filter material 6 Rotary roller 7 Pump 8 Water intake port 9 Adhesion layer 10 Stripping device 11 Piping 12 Sensor 13 Adjustment Apparatus 14 Transfer drum 15 Scraper 16 Water ejection device 17 Injection device 18 Throttle valve 19 Water flow adjustment servo valve 20 Main thruster 21 Control device 22 Switching valve 24 Thruster 25 Fluorometer 26 Digital video camera
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小久保 鉄也 大阪市北区中之島３丁目３番22号 関西電 力株式会社内 (72)発明者 坂本 稔 大阪市北区中之島３丁目３番22号 関西電 力株式会社内 (72)発明者 池田 知司 奈良市帝塚山６丁目４番134号 (72)発明者 三木 眞弘 茨木市東太田３丁目５−Ａ403 (72)発明者 石川 住人 御所市大字元町420番地の９ Ｆターム(参考） 2D025 AA01 BA22 BA25 4D026 BA03 BB01 BC12 BF06 BF09 BF11 5B057 AA15 DA11 DB06 DC25 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuya Kokubo 3-3-22 Nakanoshima, Kita-ku, Osaka City Inside Kansai Electric Power Co., Inc. (72) Inventor Minoru Sakamoto 3-2-2, Nakanoshima, Kita-ku, Osaka Kansai (72) Inventor Tomoji Ikeda 6-4-134 Tezukayama, Nara City (72) Inventor Masahiro Miki 3-5-A403 5-Higashiota, Ibaraki City 9F term (reference) 2D025 AA01 BA22 BA25 4D026 BA03 BB01 BC12 BF06 BF09 BF11 5B057 AA15 DA11 DB06 DC25
Claims (6)
槽は前記取水口に対して直通する区域と帯状の濾材を介
して間接的に通じる区域に区分し、前記帯状の濾材は無
端環状に形成して水上および水中に配置された複数の回
転ローラに巻き掛けて設けると共に、これらの回転ロー
ラに案内される濾材の回転駆動装置を設け、前記水中の
回転ローラに巻き掛けられて水面下で対向する２枚の濾
材間にポンプの吸水口を配置し、前記濾材に付着した赤
潮等水中懸濁物含有の付着物層を剥離する剥離装置を設
けてなる赤潮等水中懸濁物の分離除去装置。A water tank is provided with an intake port for the water to be treated, and the water tank is divided into an area directly communicating with the intake port and an area indirectly communicating with the intake port through a belt-shaped filter medium, and the belt-shaped filter medium is endless. In addition to being provided in a ring shape and being wound around a plurality of rotating rollers disposed on and in the water, a rotation driving device for a filter medium guided by these rotating rollers is provided, and the filter medium is wound around the underwater rotating roller and provided on the water surface. A water suction port of a pump is disposed between two filter media opposing each other below, and a peeling device is provided for peeling off an adhering material layer containing an underwater suspension such as red tide attached to the filter media. Separation and removal equipment.
して転写可能な転写ドラムを有し、この転写ドラムの周
面に接するスクレーパを設けたものからなる請求項１記
載の赤潮等水中懸濁物の分離除去装置。2. The red tide or the like according to claim 1, wherein the peeling device has a transfer drum capable of transferring in close contact with the deposit layer on the surface of the filter medium, and is provided with a scraper in contact with the peripheral surface of the transfer drum. Separation and removal equipment for suspensions in water.
記濾材の裏面に接する水面との水位差を検出するセンサ
ーを設け、このセンサーの指示により濾材の回転駆動装
置の回転速度もしくはポンプの吸水速度または両速度を
調整する調整装置を設けた請求項１記載の赤潮等水中懸
濁物の分離除去装置。3. A sensor for detecting a water level difference between a water surface in contact with the surface of the ascending filter medium and a water surface in contact with the back surface of the filter medium is provided, and the rotation speed of the rotation drive device of the filter medium or the water absorption of the pump is designated by the sensor. The apparatus for separating and removing suspended matter such as red tide in water according to claim 1, further comprising an adjusting device for adjusting the speed or both speeds.
離除去装置を搭載した赤潮等水中懸濁物の水質浄化処理
船。4. A water purification treatment vessel for red tide or other underwater suspended matter equipped with the apparatus for separating and removing red tide or other suspended matter in water according to claim 1.
水中に噴射する噴射装置を設け、この噴射装置の水流を
船体の推進または姿勢制御に利用する請求項４記載の赤
潮等水中懸濁物の水質浄化処理船。5. An underwater suspension such as red tide according to claim 4, further comprising an injection device for injecting filtered water discharged from the pump from the hull into the water, and using a water flow of the injection device for propulsion or attitude control of the hull. Water purification boat.
船に、自動航行装置を取り付けると共に、複数台のデジ
タルビデオカメラおよびこのデジタルビデオカメラで撮
影された画像データの処理装置を設け、この画像データ
の処理装置で認識された赤潮水域の方角および距離の情
報を推進装置制御システムを介して前記自動航行装置に
伝達することにより自動浄化処理可能な赤潮等水中懸濁
物の水質浄化処理船。6. A water purification treatment boat according to claim 4, further comprising an automatic navigation device, a plurality of digital video cameras, and a processing device for processing image data captured by the digital video cameras. A water purification treatment vessel for red tide and other underwater suspensions that can be automatically purified by transmitting information on the direction and distance of the red tide water area recognized by the image data processing device to the automatic navigation device via a propulsion device control system. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11185063A JP2001009215A (en) | 1999-06-30 | 1999-06-30 | Device for separating/removing underwater suspended solid such as red tide and vessel for purifying water quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11185063A JP2001009215A (en) | 1999-06-30 | 1999-06-30 | Device for separating/removing underwater suspended solid such as red tide and vessel for purifying water quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001009215A true JP2001009215A (en) | 2001-01-16 |
Family
ID=16164166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11185063A Pending JP2001009215A (en) | 1999-06-30 | 1999-06-30 | Device for separating/removing underwater suspended solid such as red tide and vessel for purifying water quality |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001009215A (en) |
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| KR20150047193A (en) * | 2013-10-24 | 2015-05-04 | 현대중공업 주식회사 | Apparatus for crushing of marine organism |
| CN109339014A (en) * | 2018-11-20 | 2019-02-15 | 黄冬艳 | A kind of device for cleaning water surface rubbish |
| CN111827227A (en) * | 2020-07-17 | 2020-10-27 | 浙江水利水电学院 | Unmanned ship of collection is salvaged to intelligence blue alga |
| CN112425552A (en) * | 2020-11-19 | 2021-03-02 | 王柳兵 | Mechanical fish for cleaning waste in water based on wireless information transmission |
| WO2021203226A1 (en) * | 2020-04-07 | 2021-10-14 | 唐山哈船科技有限公司 | Marine litter collection and disposal device and method therefor |
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| CN112425552A (en) * | 2020-11-19 | 2021-03-02 | 王柳兵 | Mechanical fish for cleaning waste in water based on wireless information transmission |
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