JP3942307B2 - Flow separator for carrier - Google Patents

Flow separator for carrier Download PDF

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Publication number
JP3942307B2
JP3942307B2 JP12689099A JP12689099A JP3942307B2 JP 3942307 B2 JP3942307 B2 JP 3942307B2 JP 12689099 A JP12689099 A JP 12689099A JP 12689099 A JP12689099 A JP 12689099A JP 3942307 B2 JP3942307 B2 JP 3942307B2
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Japan
Prior art keywords
carrier
filter
water
flow
tank
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JP2000317482A (en
Inventor
美穂 富田
良宏 鍋島
勝美 藤田
佳宏 神谷
重浩 鈴木
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日本碍子株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Description

【0001】
【発明の属する技術分野】
本発明は、担体を添加して生物処理する処理システムにおいて、処理水の攪拌、散気などを行いながら、担体を分離した処理水を取り出すことができる担体の流動、分離装置の改良に関するものである。
【0002】
【従来の技術】
従来、BODやSSの除去、あるいは脱窒、脱燐処理などの汚水処理において、処理水に担体を添加した生物処理が行われている。この生物処理では、図5に例示するように、処理槽1をフィルタスクリーン11によって区画し、処理水をこのフィルタスクリーン11に通過させて、担体12を堰き止め分離した流出水を取り出すようにしている。すなわち、槽内の処理水は、曝気装置(図示せず)から生じた気泡13の上昇運動に伴う上昇水流となって、フィルタスクリーン11の近傍を流動することになり、その一部はフィルタスクリーン11を通過して、流出水14として取り出されるのである。
【0003】
この場合、図6の拡大図に示すように、処理水中の担体12は、曝気によって生じた水流10に乗って流動しながら循環するのであるが、処理水がウエッジワイヤなどで形成されるスクリーンバー11aからなるフィルタスクリ−ン11を通過するときに、担体12は所定の目開きのスクリーンバー11aによって堰き止められ、流出水14として流出することはない。そして、堰き止められた担体12は、流動する曝気の気泡や水流10によって押し流されるので、フィルタスクリーン目を閉塞することなく、流出水から分離され循環して槽内で繰り返し使用されるものである。
そして、このフィルタスクリーン11の閉塞を確実に防止するには、相当な強さの水流が必要なところから、処理槽内においてできるだけ強い水流が安定して得られる場所にフィルタスクリーンを設置するのが望ましく、設置位置、設置角度やバッフル板の設置などを含め種々のタイプが実用化されている。
【0004】
しかしながら、従来の曝気による気泡の浮力に依存した方法では、反応槽の形状によっては十分な強さの水流が得られにくく、その場合には担体による閉塞を起こし易いという問題があった他、以下に示す解決課題もあった。
(1)嫌気槽への応用が難しかった。
基本的に空気を吹き込む曝気を行わない嫌気槽では、水中攪拌機などにより槽内の攪拌を行っているものの、好気槽のような強い槽内水流が得られなかった。また、フィルタスクリーン近傍に洗浄専用の曝気装置を設けることも考えられたが、この曝気が全体の嫌気状態に悪影響を及ぼすことになり、実用的でなかった。
【0005】
(2)メンテナンスが容易ではない。
フィルタスクリーン自体を水中深く水没させた状態で設置していることから、点検や掃除などのメンテナンス時には、運転処理を一時的に停止し、槽内の水を抜き出す必要があり、メンテナンスの手間がかかるという不具合があった。
【0006】
(3)機械攪拌式曝気装置の利用も困難。
散気板などのディフューザを用いた従来の曝気装置に代えて、電動モータなどで駆動される羽根車を備えた機械攪拌式曝気装置の適用が考えられるが、この場合もフィルタスクリーン部分に強い水流を生じさせるのは困難であるので、結局、フィルタスクリーン洗浄のためにバッフル板を配置し、専用のブロアーを設けて強い水流を部分的に発生させるなど、複雑な構造を付加させなければならず、適切なものとは言いがたかった。
【0007】
【発明が解決しようとする課題】
本発明は、上記の問題点を解決するためになされたものであり、フィルタの閉塞を確実に防止できるとともに、嫌気槽または好気槽のいずれにも適用でき、メンテナンスも容易であり、また、処理槽の構造自体も簡単な構造で済ませることのできる、担体の流動、分離装置を提供する。
【0008】
【課題を解決するための手段】
上記の問題は、次に詳述するところの、垂直に配置されたドラフトチューブと、その下部に設けられた水流発生手段と、その内部に設けられたフィルタ手段を具備し、そのドラフトチューブ内を流通させた処理水から前記フィルタ手段によって担体を分離して得た担体を含まない処理水を前記ドラフトチューブから取り出す手段を備えた担体の流動分離装置であって、前記水流発生手段が電動機で回転駆動されるインペラ装置であって、前記フィルタ手段が円筒形フィルタであり、担体を含む処理水をその円筒形フィルタの外側を流通させ、担体を含まない処理水をその円筒形フィルタの内側から取り出すようにしたことを特徴とする本発明の担体の流動分離装置によって解決することができる。
【0009】
さらに、これらの担体の流動分離装置は、好ましくは、前記フィルタ手段の少なくともフィルタ部分のみを単独に反応槽中の処理水中から引き上げることができるよう昇降可能に設けられたり、前記インペラ装置の上流側に空気供給手段を併設した形態に具体化できるものである。
【0010】
本発明によれば、インペラ装置のような水流発生手段によって、ドラフトチューブとフィルタとの間の限られた空間に処理水の水流を流通させるから、フィルタの外側から担体を分離して処理水を内側に取り込み、担体を含まない流出水として取り出すことができる。そして、同時に、ドラフトチューブ内では水流が分散することがないから、フィルタに沿って所望の流速、流量の水流を流動させることができる。従って、フィルタに堰き止められた担体を確実に押し流すことができ、担体の閉塞を効果的に防止できるのである。
【0011】
さらに本発明では、空気供給手段を併設して好気槽に好適に用いられるが、水流発生手段として必ずしも曝気装置に依存しないので、酸素の供給を行わない嫌気槽への応用が容易になり、適用範囲が広がることになる。また、流動分離装置のフィルタ部分を単独に引き上げることができる昇降装置を付加すれば、フィルタ部分の点検や掃除などのメンテナンスが容易になるという利点も得られる。
【0012】
【発明の実施の形態】
次に、本発明の担体の流動分離装置に係る実施形態について、図1〜4を参照しながら説明する。
図1において、本発明の担体の流動分離装置は、担体を用いて生物処理を行う好気槽または嫌気槽に適用される担体の流動分離装置であって、垂直に配置された中空円筒形状のドラフトチューブ2の下部に、電動機31で回転駆動される羽根車32を備えたインペラ装置3が配置され、処理水をドラフトチューブ2に送り込む、またはそこから吐出できるよう設けられている。そして、その上方には、ウエッジワイヤなどで形成された有底円筒形のフィルタ4を配置し、さらに、前記フィルタ4の内側から流出水を取り出す流出配管5を設けている。
【0013】
ここで、前記ドラフトチューブ2は、合成樹脂材あるいは耐食金属材からなる中空筒状体であり、後記のフィルタ4やインペラ装置3と組み付けるに適した断面形状、好ましくは円筒状に形成されているものである。そして、その下部には、水流発生手段としては、図示の電動機で回転駆動される羽根車32を備えたインペラ装置3が設けられている。この目的の水流発生手段には、図3に例示するような、処理槽上方に配置した電動機31aで回転駆動される水中羽根車32aを備えた装置に変形することも含まれる。
【0014】
そして、このドラフトチューブ2の内部に設けられたフィルタ手段としては、筒体に形成された外周壁をウエッジワイヤタイプのスクリーンバーで構成した有底円筒形のフィルタ4が適当であるが、本発明はこれに限定されず、網体、有孔板などで形成される円筒状フィルタや、平板フィルタエレメントを組み合わせた断面多角形のフィルタ手段でも、要は、担体12を堰き止める目開きのフィルタであれば適宜に適用され得る。
さらに、この円筒形のフィルタ4の内部から担体12を分離した流出水を取り出す流出手段として流出配管5が取り付けられ、担体を分離して含まない処理水が流出するよう設けられている。
【0015】
図1に示す担体の流動分離装置では、インペラ装置3を運転すると、その吐出口33から処理水が吐出され、一方、処理水はドラフトチューブ2の上端から吸入されることになり、ドラフトチューブ2とフィルタ4との間の限られた空間に処理水の下向水流が生じることになり、吸い込まれる担体12はフィルタ4の外周側で堰き止められ、担体12を分離した処理水は内側に流れ込み、担体12を含まない流出水として流出配管5によって取り出われる。
【0016】
そして、同時に、インペラ装置3によって吸入されて生じるドラフトチューブ2内水流は、分散することがないから、フィルタ4に堰き止められた担体を確実に押し流すことができるような、所望の流速、流量に設定することができ、担体の閉塞を効果的に防止できることになる。
【0017】
また、本発明では、図2に示すように、電動機31bによって駆動される羽根車32bに基づく水流の方向を、このインペラ装置から処理水を吸い込み、ドラフトチューブ2の上端口から吐出するように設定しても、先の実施形態とは水流の方向は逆向きになるが同様に機能させることができる。
【0018】
さらに、前記図1〜3に示す装置の場合、担体の流動分離に曝気装置を応用していないから、酸素を供給しない嫌気槽に好ましく適用できる。また、この水流発生手段に空気供給手段を併設して、好気槽に好ましく適用できるようにすることができる。例えば、図4に示すように、インペラ装置に空気供給管6によって空気を供給するようにすれば、供給された気泡を羽根車の回転力によって細かい気泡13として槽内に送り出すことができ、曝気効果を向上させることもできる。このように、外部から空気を供給する場合、空気供給管6の出口をインペラ装置の上流側に配設するのがよく、分散効果を高めることができる。
【0019】
また、本発明の担体の流動分離装置は、フィルタ部分を単独で反応槽中から引き上げるよう昇降装置を付設するのが特に好ましい。本発明では、装置自体はドラフトチューブ、インペラ装置およびフィルタ装置により構成されるが、フィルタ部分を着脱自在とし、昇降可能なものとすれば、流動分離装置全体を処理槽から引き上げることなく、フィルタ部分の点検や掃除などのメンテナンスが可能になるという利点が得られる。また、本発明では、装置自体を処理槽の構造から分離して独立した機構に構成できるので、処理槽自体の構造をシンプルなものにできるという利点も得られる。
【0020】
【発明の効果】
本発明の担体の流動分離装置は、以上に説明したように構成されているので、スクリーン近傍において強い水流を発生させることができるから、フィルタの閉塞を効果的に防止できる他、次のような優れた効果が得られた。
(1)適用範囲が広がった。
好気槽は勿論のこと、脱窒反応槽や脱燐反応槽のような嫌気処理槽にも適用できるようになった。この結果、それらの処理槽でも担体を利用できるようになるので、処理システムの効率をさらに向上させることも可能になり、処理能力のアップや装置のコンパクト化まで期待できるようになった。
【0021】
(2)好気槽の場合も、処理槽の構造が簡単になった。
処理水の攪拌と散気処理が同時に行えるから、好気槽に好適に適用でき、従来のような、槽構造に付属したフィルタスクリーン装置が不要となるから、処理槽自体の構造がシンプルに形成できる、また、処理槽のメンテナンスも容易になる利点が得られる。
【0022】
(3)メンテナンスが容易となった。
処理槽のメンテナンスが容易になる他、フィルタ部分を槽から引き上げてメンテナンスを行えるので、従来のような処理水を抜き取るといった手間がかからなくなった。
よって本発明は従来の問題点を解消した担体の流動分離装置として、その工業的価値は極めて大なるものがある。
【図面の簡単な説明】
【図1】本発明の実施形態を説明するための断面略図。
【図2】他の実施形態を説明するための断面略図。
【図3】他の実施形態を説明するための断面略図。
【図4】他の実施形態を説明するための断面略図。
【図5】フィルタスクリーンの機能を説明するために断面略図。
【図6】フィルタスクリーンの部分拡大図。
【符号の説明】
12 担体、13 気泡、2 ドラフトチューブ、3 インペラ装置、31 電動機、31a、31b 電動機、32 羽根車、32a、32b 羽根車、4 フィルタ、5 流出配管、6 空気供給管。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a carrier flow and separation apparatus that can take out treated water from which a carrier has been separated while stirring and aeration of the treated water in a biological treatment system by adding a carrier. is there.
[0002]
[Prior art]
Conventionally, biological treatment in which a carrier is added to treated water has been performed in sewage treatment such as removal of BOD and SS, or denitrification and dephosphorization treatment. In this biological treatment, as illustrated in FIG. 5, the treatment tank 1 is partitioned by a filter screen 11, the treated water is passed through the filter screen 11, the carrier 12 is dammed and separated and the effluent water separated is taken out. Yes. That is, the treated water in the tank becomes an ascending water flow accompanying the ascending movement of the bubbles 13 generated from the aeration apparatus (not shown), and flows in the vicinity of the filter screen 11, and a part thereof is the filter screen. 11 is taken out as effluent water 14.
[0003]
In this case, as shown in the enlarged view of FIG. 6, the carrier 12 in the treated water circulates while flowing on the water flow 10 generated by aeration, but the screen water is formed by a wedge wire or the like. When passing through the filter screen 11 made of 11 a, the carrier 12 is blocked by the screen bar 11 a having a predetermined opening and does not flow out as the effluent water 14. The dammed carrier 12 is swept away by the flowing aeration bubbles and the water flow 10, so that it is separated from the effluent water and circulated and repeatedly used in the tank without closing the filter screen. .
In order to reliably prevent the filter screen 11 from being clogged, it is necessary to install the filter screen in a place where a strong water flow can be stably obtained in the treatment tank from a place where a water flow of a considerable strength is required. Desirably, various types have been put into practical use, including the installation position, installation angle, and baffle plate installation.
[0004]
However, in the conventional method that relies on the buoyancy of bubbles by aeration, it is difficult to obtain a sufficiently strong water flow depending on the shape of the reaction tank, and in that case, there is a problem that clogging by the carrier is likely to occur, and the following There was also a problem to be solved.
(1) It was difficult to apply to an anaerobic tank.
Basically, in an anaerobic tank that does not perform aeration in which air is blown, the water in the tank as strong as an aerobic tank cannot be obtained, although stirring in the tank is performed with an underwater stirrer or the like. In addition, it has been considered to provide a cleaning-use aeration device in the vicinity of the filter screen, but this aeration has an adverse effect on the entire anaerobic state, and is not practical.
[0005]
(2) Maintenance is not easy.
Since the filter screen itself is deeply submerged in the water, it is necessary to temporarily stop the operation process and remove water from the tank during maintenance such as inspection and cleaning. There was a problem that.
[0006]
(3) It is difficult to use a mechanical stirring aeration device.
Instead of a conventional aeration device using a diffuser such as a diffuser plate, a mechanical agitating aeration device equipped with an impeller driven by an electric motor or the like can be considered. In the end, it is difficult to create a baffle plate for cleaning the filter screen, and it is necessary to add a complicated structure such as providing a dedicated blower to partially generate a strong water flow. It was hard to say that it was appropriate.
[0007]
[Problems to be solved by the invention]
The present invention has been made to solve the above problems, and can reliably prevent the clogging of the filter, can be applied to either an anaerobic tank or an aerobic tank, is easy to maintain, Provided is a carrier flow / separation device in which the structure of a treatment tank itself can be a simple structure.
[0008]
[Means for Solving the Problems]
The above-mentioned problem includes a vertically arranged draft tube, a water flow generating means provided in the lower part thereof, and a filter means provided therein, as described in detail below. A flow separation device for a carrier comprising means for removing treated water containing no carrier obtained by separating the carrier from the circulated treated water by the filter means from the draft tube , wherein the water flow generating means is rotated by an electric motor. An impeller device to be driven, wherein the filter means is a cylindrical filter, the treated water containing the carrier is allowed to flow outside the cylindrical filter, and the treated water not containing the carrier is taken out from the inside of the cylindrical filter. that the the so can be solved by the flow separation device of the carrier according to the invention, characterized in.
[0009]
Further, the flow separation device of these carriers is preferably provided so as to be able to be lifted and lowered so that only at least the filter portion of the filter means can be pulled up from the treated water in the reaction tank alone, or upstream of the impeller device. It can be embodied in a form in which an air supply means is additionally provided.
[0010]
According to the present invention, since the water flow of the treated water is circulated in the limited space between the draft tube and the filter by the water flow generating means such as the impeller device, the carrier is separated from the outside of the filter to remove the treated water. It can be taken inside and taken out as effluent without carrier. At the same time, since the water flow is not dispersed in the draft tube, the water flow having a desired flow rate and flow rate can be flowed along the filter. Therefore, the carrier blocked by the filter can be surely washed away, and the blockage of the carrier can be effectively prevented.
[0011]
Furthermore, in the present invention, it is preferably used in an aerobic tank with an air supply means, but it does not necessarily depend on an aeration apparatus as a water flow generation means, so it can be easily applied to an anaerobic tank in which oxygen is not supplied, The scope of application will be expanded. Further, if an elevating device that can pull up the filter portion of the flow separation device is added, there is an advantage that maintenance such as inspection and cleaning of the filter portion is facilitated.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the carrier flow separation device of the present invention will be described with reference to FIGS.
In FIG. 1, the carrier flow separation apparatus of the present invention is a carrier flow separation apparatus applied to an aerobic tank or an anaerobic tank that performs biological treatment using a carrier, and has a hollow cylindrical shape arranged vertically. An impeller device 3 including an impeller 32 that is rotationally driven by an electric motor 31 is disposed below the draft tube 2, and is provided so that treated water can be fed into or discharged from the draft tube 2. Above that, a bottomed cylindrical filter 4 formed of a wedge wire or the like is disposed, and an outflow pipe 5 for taking out outflow water from the inside of the filter 4 is provided.
[0013]
Here, the draft tube 2 is a hollow cylindrical body made of a synthetic resin material or a corrosion-resistant metal material, and has a cross-sectional shape suitable for assembling with the filter 4 and the impeller device 3 described later, preferably a cylindrical shape. Is. And the impeller apparatus 3 provided with the impeller 32 rotated by the electric motor of illustration is provided in the lower part as a water flow generation means. The water flow generating means for this purpose includes a modification to a device including a submerged impeller 32a that is rotationally driven by an electric motor 31a disposed above the processing tank, as illustrated in FIG.
[0014]
As the filter means provided inside the draft tube 2, a bottomed cylindrical filter 4 in which the outer peripheral wall formed in the cylindrical body is constituted by a wedge wire type screen bar is suitable. However, the present invention is not limited to this, and even a cylindrical filter formed of a net body, a perforated plate, etc., or a filter means having a polygonal cross section combined with a flat plate filter element, is basically a filter with an opening that dams the carrier 12. It can be applied as appropriate.
Furthermore, an outflow pipe 5 is attached as an outflow means for taking out the outflow water from which the carrier 12 has been separated from the inside of the cylindrical filter 4 and is provided so that treated water that does not contain the carrier is separated out.
[0015]
In the carrier flow separation device shown in FIG. 1, when the impeller device 3 is operated, treated water is discharged from the discharge port 33, while the treated water is sucked from the upper end of the draft tube 2. The downflow of the treated water is generated in the limited space between the filter 4 and the filter 4, the sucked carrier 12 is dammed on the outer peripheral side of the filter 4, and the treated water separated from the carrier 12 flows into the inside. The effluent water that does not contain the carrier 12 is taken out by the effluent pipe 5.
[0016]
At the same time, since the water flow in the draft tube 2 generated by being sucked by the impeller device 3 does not disperse, the flow rate and flow rate are set to a desired value so that the carrier blocked by the filter 4 can be surely pushed away. It can be set, and the blockage of the carrier can be effectively prevented.
[0017]
In the present invention, as shown in FIG. 2, the direction of water flow based on the impeller 32b driven by the electric motor 31b is set so that treated water is sucked from the impeller device and discharged from the upper end port of the draft tube 2. Even so, although the direction of the water flow is opposite to that of the previous embodiment, it can function in the same manner.
[0018]
Furthermore, in the case of the apparatus shown in FIGS. 1 to 3, since the aeration apparatus is not applied to the flow separation of the carrier, it can be preferably applied to an anaerobic tank in which oxygen is not supplied. Moreover, an air supply means can be provided in addition to this water flow generation means so that it can be preferably applied to an aerobic tank. For example, as shown in FIG. 4, if air is supplied to the impeller device through the air supply pipe 6, the supplied bubbles can be sent into the tank as fine bubbles 13 by the rotational force of the impeller. The effect can also be improved. Thus, when air is supplied from the outside, the outlet of the air supply pipe 6 is preferably arranged on the upstream side of the impeller device, and the dispersion effect can be enhanced.
[0019]
In addition, it is particularly preferable that the flow separation device for the carrier of the present invention is provided with an elevating device so that the filter portion can be pulled up from the reaction tank alone. In the present invention, the device itself is composed of a draft tube, an impeller device, and a filter device. However, if the filter portion is detachable and can be raised and lowered, the filter portion can be removed without lifting the entire flow separation device from the processing tank. The advantage that maintenance such as inspection and cleaning becomes possible. Further, in the present invention, since the apparatus itself can be separated from the structure of the processing tank and configured as an independent mechanism, there is also an advantage that the structure of the processing tank itself can be simplified.
[0020]
【The invention's effect】
Since the flow separation device of the carrier of the present invention is configured as described above, a strong water flow can be generated in the vicinity of the screen, so that the filter can be effectively prevented from being clogged. Excellent effect was obtained.
(1) The application range has expanded.
It can be applied not only to an aerobic tank but also to an anaerobic treatment tank such as a denitrification reaction tank and a dephosphorization reaction tank. As a result, since the carrier can be used also in these treatment tanks, it is possible to further improve the efficiency of the treatment system, and it can be expected to increase the treatment capacity and downsize the apparatus.
[0021]
(2) In the case of an aerobic tank, the structure of the treatment tank is simplified.
Since the treatment water can be stirred and diffused at the same time, it can be suitably applied to an aerobic tank, and the conventional filter screen device attached to the tank structure is not required, so the structure of the treatment tank itself is simple. It is possible to obtain an advantage that the treatment tank can be easily maintained.
[0022]
(3) Maintenance is easy.
In addition to facilitating maintenance of the treatment tank, it is possible to perform maintenance by lifting the filter portion from the tank, so that it is no longer necessary to take out the treated water as in the prior art.
Therefore, the industrial value of the present invention is extremely large as a carrier flow separation device which has solved the conventional problems.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view for explaining an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view for explaining another embodiment.
FIG. 3 is a schematic cross-sectional view for explaining another embodiment.
FIG. 4 is a schematic cross-sectional view for explaining another embodiment.
FIG. 5 is a schematic cross-sectional view for explaining the function of a filter screen.
FIG. 6 is a partially enlarged view of a filter screen.
[Explanation of symbols]
12 carrier, 13 bubble, 2 draft tube, 3 impeller device, 31 motor, 31a, 31b motor, 32 impeller, 32a, 32b impeller, 4 filter, 5 outflow pipe, 6 air supply pipe.

Claims (3)

  1. 垂直に配置されたドラフトチューブと、その下部に設けられた水流発生手段と、その内部に設けられたフィルタ手段を具備し、そのドラフトチューブ内を流通させた処理水から前記フィルタ手段によって担体を分離して得た担体を含まない処理水を前記ドラフトチューブから取り出す手段を備えた担体の流動分離装置であって、前記水流発生手段が電動機で回転駆動されるインペラ装置であって、前記フィルタ手段が円筒形フィルタであり、担体を含む処理水をその円筒形フィルタの外側を流通させ、担体を含まない処理水をその円筒形フィルタの内側から取り出すようにしたことを特徴とする担体の流動分離装置。A vertically arranged draft tube, a water flow generating means provided in the lower part thereof, and a filter means provided therein are provided, and the carrier is separated by the filter means from the treated water circulated in the draft tube. A carrier flow separation device comprising means for taking out the treated water not containing the carrier from the draft tube , wherein the water flow generating means is an impeller device driven to rotate by an electric motor, wherein the filter means is A fluid separation device for a carrier which is a cylindrical filter, wherein treated water containing a carrier is allowed to flow outside the cylindrical filter, and treated water not containing the carrier is taken out from the inside of the cylindrical filter. .
  2. 前記担体の流動分離装置のフィルタ部分を昇降可能に設けた請求項1に記載の担体の流動分離装置。2. The carrier flow separation device according to claim 1, wherein a filter portion of the carrier flow separation device is provided to be movable up and down.
  3. 前記インペラ装置の上流側に空気供給手段を併設した請求項1または2に記載の担体の流動分離装置。The carrier flow separation device according to claim 1 , further comprising an air supply unit provided upstream of the impeller device.
JP12689099A 1999-05-07 1999-05-07 Flow separator for carrier Expired - Fee Related JP3942307B2 (en)

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JP4879925B2 (en) * 2008-02-25 2012-02-22 シャープ株式会社 Water treatment apparatus and water treatment method
JP4994265B2 (en) * 2008-02-25 2012-08-08 シャープ株式会社 Water treatment apparatus and water treatment method
JP4870707B2 (en) * 2008-03-26 2012-02-08 シャープ株式会社 Water treatment apparatus and water treatment method
JP4870708B2 (en) * 2008-03-26 2012-02-08 シャープ株式会社 Water treatment apparatus and water treatment method
JP2010284613A (en) * 2009-06-15 2010-12-24 Fujiyoshi Kogyo Kk Solid-liquid separator for sludge concentration and method for sludge concentration
DE102009045032A1 (en) * 2009-09-25 2011-03-31 Invent Umwelt-Und Verfahrenstechnik Ag Process and apparatus for the biological purification of wastewater
KR101238592B1 (en) * 2010-12-30 2013-02-28 주식회사 평화개발 Low electric power agitator for wastewater treatment and anaerobic digester of high efficiency using the same

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