【０００１】[0001]
【産業上の利用分野】本発明は、粉末状の活性炭を用い
て水処理を行う活性炭吸着装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an activated carbon adsorption device for treating water with powdered activated carbon.
【０００２】[0002]
【従来の技術】従来、水処理において被処理水中のＣＯ
Ｄ，色度等を除去するために、例えば、図３に示すよう
な活性炭吸着装置を用いていた。図３の構成において
は、吸着槽１の上部に開口する供給管２から被処理水３
を槽内に供給し、被処理水３を槽内に設けた活性炭層４
を通して流下させており、活性炭層４を通過する際に被
処理水３中のＣＯＤ，色度等を活性炭層２に充填した粒
状活性炭により吸着処理していた。そして、活性炭層４
を通過した被処理水５を槽底部に開口する排出管６を通
して取り出していた。2. Description of the Related Art Conventionally, in water treatment, CO in treated water
In order to remove D, chromaticity, etc., for example, an activated carbon adsorption device as shown in FIG. 3 was used. In the configuration of FIG. 3, the water to be treated 3 is supplied from the supply pipe 2 that opens at the top of the adsorption tank 1.
Activated carbon layer 4 in which water to be treated 3 is provided in the tank
And the COD, chromaticity and the like in the water to be treated 3 were adsorbed by the granular activated carbon filled in the activated carbon layer 2 when passing through the activated carbon layer 4. And activated carbon layer 4
The water to be treated 5 which had passed through was taken out through the discharge pipe 6 opening at the bottom of the tank.
【０００３】[0003]
【発明が解決しようとする課題】一般に活性炭はその粒
子径が小さいほど吸着速度や吸着容量が向上することが
知られており、粉末活性炭の使用が望ましい。しかし、
上記した従来の構成においては、活性炭層４で保持可能
な粒子径には限界があり、活性炭層４に粉末活性炭を充
填した場合には、処理水５とともに粉末活性炭が槽外に
流出して短期間に吸着効率が低下する問題があった。こ
のため、従来の構成においては、粒状活性炭を使用せざ
るを得ず、処理能力を引き上げるためには、活性炭層４
の容積を増大するとともに、吸着槽１を大型化する必要
があり、用地の確保や費用の点から問題があった。It is generally known that the smaller the particle size of activated carbon is, the higher the adsorption rate and adsorption capacity are. Therefore, it is desirable to use powdered activated carbon. But,
In the above-mentioned conventional configuration, there is a limit to the particle size that can be retained in the activated carbon layer 4, and when the activated carbon layer 4 is filled with powdered activated carbon, the activated carbon powder flows out of the tank together with the treated water 5 for a short period of time. In the meantime, there was a problem that the adsorption efficiency was lowered. For this reason, in the conventional structure, the granular activated carbon must be used.
It is necessary to increase the capacity and the size of the adsorption tank 1 and there is a problem in terms of securing a site and cost.
【０００４】本発明は上記課題を解決するもので、吸着
槽内に粉末活性炭を投入し、粉末活性炭の槽外への流出
を阻止しながら水処理を行うことができる活性炭吸着装
置を提供することを目的とする。The present invention solves the above problems and provides an activated carbon adsorbing apparatus capable of performing water treatment while charging activated carbon powder into an adsorption tank and preventing the activated carbon powder from flowing out of the tank. With the goal.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明の活性炭吸着装置は、被処理水と粉末活性炭
との混合スラリーを貯留する吸着槽と、吸着槽に被処理
水を供給する供給管と、吸着槽に浸漬して設けた膜分離
ユニットと、膜分離ユニットに連通する吸引管に介装し
た吸引ポンプと、吸着槽の底部側に配設した散気管と、
散気管に送気管を介して連通するブロアーとを備えた構
成としたものである。In order to solve the above problems, an activated carbon adsorbing apparatus of the present invention provides an adsorption tank for storing a mixed slurry of water to be treated and powdered activated carbon, and the water to be treated is supplied to the adsorption tank. A supply pipe, a membrane separation unit immersed in the adsorption tank, a suction pump interposed in the suction pipe communicating with the membrane separation unit, and an air diffusing pipe arranged on the bottom side of the adsorption tank,
The blower communicates with the air diffuser via the air supply pipe.
【０００６】[0006]
【作用】上記した構成により、ブロアーにより送気管を
通して散気管に空気を供給し、散気管から吸着槽内の混
合スラリー中に空気を曝気する。曝気した空気のエアリ
フト作用により生起する上昇攪拌流によって吸着槽内の
混合スラリーを旋回させながら粉末活性炭によって被処
理水中のＣＯＤや色度を吸着除去する。With the above-described structure, air is supplied to the diffuser tube through the blower tube by the blower, and the mixed slurry in the adsorption tank is aerated from the diffuser tube. COD and chromaticity in the water to be treated are adsorbed and removed by the powdered activated carbon while the mixed slurry in the adsorption tank is swirled by the ascending stirring flow generated by the air lift action of the aerated air.
【０００７】一方、供給管から被処理水を連続的に吸着
槽内に供給しながら、膜分離ユニットにより混合スラリ
ーを固液分離し、濾過膜を透過した透過液を処理水とし
て吸引管を通して吸引ポンプで取り出す。このとき、膜
面に付着した粉末活性炭は槽内の上昇攪拌流により剥離
させ、再び混合スラリー中に混入させる。On the other hand, while the water to be treated is continuously supplied into the adsorption tank from the supply pipe, the mixed slurry is separated into solid and liquid by the membrane separation unit, and the permeated liquid that has passed through the filtration membrane is sucked through the suction pipe as treated water. Pump out. At this time, the powdered activated carbon adhering to the film surface is separated by the ascending stirring flow in the tank and mixed again in the mixed slurry.
【０００８】したがって、吸着槽内の粉末活性炭を濾過
することにより、粉末活性炭の槽外への流出を阻止して
処理水だけを槽外へ取り出すとができるので、粉末活性
炭の使用によって吸着速度および吸着容量の向上が図れ
るとともに、活性炭の吸着能を最大限に有効利用するこ
とができ、吸着効率を長期にわたって維持することがで
きる。Therefore, by filtering the powdered activated carbon in the adsorption tank, it is possible to prevent the powdered activated carbon from flowing out of the tank and to take out only the treated water to the outside of the tank. The adsorption capacity can be improved, and the adsorption capacity of the activated carbon can be utilized to the maximum extent, so that the adsorption efficiency can be maintained for a long period of time.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１から図２において、吸着槽１１の内部には
混合スラリー１２を貯留しており、混合スラリー１２は
供給管１３から供給する被処理水１４と別途に吸着槽１
に投入した粉末活性炭１５との混合物である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 2, the mixed slurry 12 is stored inside the adsorption tank 11, and the mixed slurry 12 is separated from the water to be treated 14 supplied from the supply pipe 13 and the adsorption tank 1 separately.
It is a mixture with the powdered activated carbon 15 charged in.
【００１０】吸着槽１１の内部には膜分離ユニット１６
を浸漬しており、膜分離ユニット１６は限外濾過膜等の
膜を有する複数の膜モジュール１７を膜面間に適当間隙
をおいて上下方向に平行に配置したものである。また、
各膜モジュール１７の透過液流路は吸引管１８に連通し
ており、吸引管１８は途中に介装した吸引ポンプ１９を
介して処理水槽２０に連通している。A membrane separation unit 16 is provided inside the adsorption tank 11.
The membrane separation unit 16 is a unit in which a plurality of membrane modules 17 having membranes such as ultrafiltration membranes are arranged in parallel in the vertical direction with appropriate gaps between the membrane surfaces. Also,
The permeate flow path of each membrane module 17 is in communication with a suction pipe 18, and the suction pipe 18 is in communication with a treated water tank 20 via a suction pump 19 provided midway.
【００１１】吸着槽１１の底部には膜分離ユニット１６
の下方に位置して散気管２１を配置しており、散気管２
１には送気管２２を介してブロアー２３を接続してい
る。以下、上記構成における作用を説明する。ブロアー
２３により送気管２２を通して散気管２１に空気２４を
供給し、散気管２１から吸着槽１１の内部に滞留する混
合スラリー１２中に空気２４を曝気する。曝気した空気
２４のエアリフト作用により生起する上昇攪拌流は、膜
モジュール１７の相互の間隙を上昇し、膜分離ユニット
１６の内部を下方から上方に向けて流れる上向流と膜分
離ユニット１６の外部を上方から下方に向けて流れる下
向流とからなる循環流を槽内に作り出す。この循環流に
よって吸着槽１１内の混合スラリー１２を旋回させなが
ら粉末活性炭１５によって被処理水１４中のＣＯＤや色
度を吸着除去する。A membrane separation unit 16 is provided at the bottom of the adsorption tank 11.
The air diffuser 21 is located below the
A blower 23 is connected to 1 via an air supply pipe 22. The operation of the above configuration will be described below. Air 24 is supplied to the air diffuser 21 through the air blower 22 by the blower 23, and the air 24 is aerated from the air diffuser 21 into the mixed slurry 12 retained inside the adsorption tank 11. The ascending stirring flow generated by the air lift action of the aerated air 24 rises in the mutual gap of the membrane modules 17 and flows upward from inside the membrane separation unit 16 to outside the membrane separation unit 16. A circulating flow consisting of a downward flow that flows downward from above is created in the tank. While circulating the mixed slurry 12 in the adsorption tank 11 by this circulating flow, COD and chromaticity in the water 14 to be treated are adsorbed and removed by the powdered activated carbon 15.
【００１２】一方、供給管１３から被処理水１４を連続
的に吸着槽１１内に供給しながら、膜分離ユニット１６
により混合スラリー１２を固液分離する。そして、膜分
離ユニット１６の濾過膜を透過した透過液を処理水２５
として吸引管１８を通して吸引ポンプ１９で取り出し、
処理水槽２０に貯留する。また、各濾過膜モジュール１
７の膜面に付着した粉末活性炭１５は膜モジュール１７
の相互の間隙を流れる上昇攪拌流により剥離させ、再び
混合スラリー１２中に混入させる。On the other hand, while continuously supplying the water to be treated 14 from the supply pipe 13 into the adsorption tank 11, the membrane separation unit 16
The mixed slurry 12 is solid-liquid separated by. The permeated liquid that has passed through the filtration membrane of the membrane separation unit 16 is treated water 25.
As a suction pump 19 through the suction tube 18,
Stored in the treated water tank 20. In addition, each filtration membrane module 1
The powdered activated carbon 15 attached to the membrane surface of No. 7 is the membrane module 17
Are separated by an ascending stirring flow that flows through the mutual gaps, and mixed again in the mixed slurry 12.
【００１３】槽内の粉末活性炭１５が疲弊して吸着能が
低下した場合には、吸着槽１１内の混合スラリー１２を
抜取り、新しい粉末活性炭１５を投入する。したがっ
て、吸着槽１１内の粉末活性炭１５を膜分離ユニット１
６で濾過することにより、粉末活性炭１５の槽外への流
出を阻止して粉末活性炭１５を槽内に確実に保持する状
態で、処理水２５だけを槽外へ取り出すとができるの
で、粉末活性炭１５を使用して吸着速度および吸着容量
の向上を図れるとともに、装置のコンパクト化を図るこ
とができる。また、粉末活性炭１５の吸着能を最大限に
有効利用することができ、吸着効率を長期にわたって維
持することができ、活性炭使用量の削減によってランニ
ングコストを低減することができる。When the powdered activated carbon 15 in the tank is exhausted and the adsorption capacity is lowered, the mixed slurry 12 in the adsorption tank 11 is taken out and new powdered activated carbon 15 is charged. Therefore, the activated carbon powder 15 in the adsorption tank 11 is removed from the membrane separation unit 1.
By filtering at 6, the treated water 25 can be taken out of the tank in a state where the powdered activated carbon 15 is prevented from flowing out of the tank and the powdered activated carbon 15 is reliably held in the tank. By using 15, the adsorption rate and adsorption capacity can be improved and the apparatus can be made compact. Further, the adsorption capacity of the powdered activated carbon 15 can be effectively utilized to the maximum extent, the adsorption efficiency can be maintained for a long time, and the running cost can be reduced by reducing the amount of activated carbon used.
【００１４】[0014]
【発明の効果】以上述べたように本発明によれば、膜分
離ユニットにより粉末活性炭を濾過して粉末活性炭の槽
外へ流出を阻止することにより、処理水だけを槽外へ取
り出して粉末活性炭を吸着槽内に確実に保持できるの
で、粉末活性炭の使用が可能となり、吸着速度および吸
着容量の向上を図れる。また、活性炭の吸着能を最大限
に有効利用することができ、吸着効率を長期にわたって
維持することができる。As described above, according to the present invention, the activated carbon powder is filtered by the membrane separation unit to prevent the activated carbon powder from flowing out of the tank, so that only the treated water is taken out of the tank. Since it can be reliably held in the adsorption tank, powdered activated carbon can be used, and the adsorption rate and adsorption capacity can be improved. Further, the adsorption capacity of the activated carbon can be effectively utilized to the maximum, and the adsorption efficiency can be maintained for a long time.
【図１】本発明の一実施例における活性炭吸着装置の全
体断面図である。FIG. 1 is an overall sectional view of an activated carbon adsorption device according to an embodiment of the present invention.
【図２】同実施例における膜分離ユニットの断面図であ
る。FIG. 2 is a cross-sectional view of a membrane separation unit according to the same embodiment.
【図３】従来の活性炭吸着装置の断面図である。FIG. 3 is a cross-sectional view of a conventional activated carbon adsorption device.
１１ 吸着槽 １２ 混合スラリー １４ 被処理水 １５ 粉末活性炭 １６ 膜分離ユニット １８ 吸引管 １９ 吸引ポンプ ２０ 処理水槽 ２１ 散気管 ２２ 送気管 ２３ ブロアー ２４ 空気 ２５ 処理水 11 Adsorption Tank 12 Mixed Slurry 14 Treated Water 15 Powdered Activated Carbon 16 Membrane Separation Unit 18 Suction Pipe 19 Suction Pump 20 Treatment Water Tank 21 Diffuser Pipe 22 Air Supply Pipe 23 Blower 24 Air 25 Treatment Water
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP965993AJPH06218361A (en) | 1993-01-25 | 1993-01-25 | Activated carbon adsorbing apparatus |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP965993AJPH06218361A (en) | 1993-01-25 | 1993-01-25 | Activated carbon adsorbing apparatus |
| Publication Number | Publication Date |
|---|---|
| JPH06218361Atrue JPH06218361A (en) | 1994-08-09 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP965993APendingJPH06218361A (en) | 1993-01-25 | 1993-01-25 | Activated carbon adsorbing apparatus |
| Country | Link |
|---|---|
| JP (1) | JPH06218361A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6964741B2 (en) | 1995-08-11 | 2005-11-15 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes |
| US7087173B2 (en) | 1995-08-11 | 2006-08-08 | Zenon Environmental Inc. | Inverted cavity aerator for membrane module |
| USRE39294E1 (en) | 1995-08-11 | 2006-09-19 | Zenon Environmental Inc. | Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
| JP2008532763A (en)* | 2005-08-30 | 2008-08-21 | エルジー・ケム・リミテッド | Method and apparatus for collecting powder from which soluble components have been removed |
| US7537701B2 (en) | 1995-08-11 | 2009-05-26 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
| US8852438B2 (en) | 1995-08-11 | 2014-10-07 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6964741B2 (en) | 1995-08-11 | 2005-11-15 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes |
| US7063788B2 (en) | 1995-08-11 | 2006-06-20 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US7087173B2 (en) | 1995-08-11 | 2006-08-08 | Zenon Environmental Inc. | Inverted cavity aerator for membrane module |
| USRE39294E1 (en) | 1995-08-11 | 2006-09-19 | Zenon Environmental Inc. | Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
| US7534353B2 (en) | 1995-08-11 | 2009-05-19 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US7537701B2 (en) | 1995-08-11 | 2009-05-26 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
| US7615157B2 (en) | 1995-08-11 | 2009-11-10 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
| US8852438B2 (en) | 1995-08-11 | 2014-10-07 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
| JP2008532763A (en)* | 2005-08-30 | 2008-08-21 | エルジー・ケム・リミテッド | Method and apparatus for collecting powder from which soluble components have been removed |
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