JP3408692B2 - Water treatment equipment - Google Patents
Water treatment equipmentInfo
- Publication number
- JP3408692B2 JP3408692B2 JP12758896A JP12758896A JP3408692B2 JP 3408692 B2 JP3408692 B2 JP 3408692B2 JP 12758896 A JP12758896 A JP 12758896A JP 12758896 A JP12758896 A JP 12758896A JP 3408692 B2 JP3408692 B2 JP 3408692B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- circulating water
- membrane modules
- water flow
- membrane
- 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.)
- Expired - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、処理槽の内部に複
数台の浸漬型膜モジュールを配設した水処理装置に関す
る。
【０００２】
【従来の技術】浄水や下排水などを処理する水処理装置
として、処理槽の内部に複数台の浸漬型膜モジュールを
配設したものがある。
【０００３】たとえば図２〜図５に示した水処理装置で
は、膜モジュール１は、透過水吸引室２を形成したケー
シング３の内部に複数本の管状セラミック分離膜４を配
列することにより直方体形状に構成されている。そし
て、このような膜分離装置１が、処理槽５の内部に複数
段かつ複数列（ここでは６段２列）配設され、各膜モジ
ュール１の透過水吸引室２に連通する透過水吸引管６が
設けられ、積層した膜モジュール１の下方に散気装置７
が設けられている。透過水吸引管６には吸引ポンプ８が
介装され、散気装置７はブロワ９に接続している。１０
は被処理水である。
【０００４】このような構成において、吸引ポンプ８を
駆動して、透過水吸引管６と透過水吸引室２を通じて分
離膜４の内側すなわち透過水流路４ａに吸引圧を作用さ
せることにより、分離膜４によって被処理水１０を濾過
し、膜面を透過して透過水流路４ａ内に流入した透過水
を透過水吸引室２と透過水吸引管６を通じて槽外へ取り
出している。このとき、ブロワ９より散気装置７を通じ
て散気する空気の気泡によって、各膜モジュール１の内
部を上昇する槽内循環水流１１を生起し、この気泡を含
んだ循環水流１１により分離膜４の表面を洗浄するよう
にしている。
【０００５】
【発明が解決しようとする課題】上記したような水処理
装置を設計する場合、処理量が１００ｍ3 ／日程度の中
小規模のものでは、膜分離装置を１〜３列程度配設すれ
ばよいので、槽内循環水流や槽内空間の利用効率は問題
にならなかったが、近年は処理量が１０００ｍ3／日以
上の大規模の需要もあり、槽内循環水流や槽内空間を効
率的に利用できる処理槽形状や膜モジュールの配置方法
の検討が必要とされている。
【０００６】本発明は上記課題を解決するもので、処理
槽の内部に複数台の浸漬型膜モジュールを配設するに際
し、槽内循環水流や槽内空間を効率的に利用できるよう
に配置することを目的とするものである。
【０００７】
【課題を解決するための手段】上記課題を解決するため
に、本発明の水処理装置は、一つの処理槽の内部に複数
台の浸漬型膜モジュールを配設し、各膜モジュールに槽
内循環水流を供給する循環水流供給手段を設けた水処理
装置において、前記複数台の膜モジュールは、槽の上下
方向に積層するとともに、相対向する１組の槽壁のそれ
ぞれから離れた位置に、前記槽壁に沿う方向の側面が互
いに隣接するように並列に配置し、それにより、並列に
配置した膜モジュールの両側に槽内循環水流の流路を形
成し、並列に配置した各膜モジュールの列ごとに互いの
流れを妨害しない循環水流を形成するものである。
【０００８】上記した構成によれば、各膜モジュールの
内部を上昇（または下降）した水流は、隣接する膜モジ
ュールが存在しない方向、すなわち流路に向かう方向に
流れ、次いでその流路において下降（または上昇）し、
次いで各膜モジュールの内部に流入する循環水流とな
る。すなわち、膜モジュールの列ごとに、互いの流れを
妨害しない循環水流が形成することができ、この循環水
流により、効率的に膜面洗浄を行える。
【０００９】また、循環水流供給手段などを容易に設置
および組み立てできるとともに、その設置空間を低減す
ることができ、槽内空間を有効に利用できる。
【００１０】
【発明の実施の形態】以下、本発明の実施形態を図面を
用いて説明する。図１は本発明の一実施形態の水処理装
置を示し、この水処理装置は、図２〜図５を用いて説明
した従来のものと同様の構成を有しており、処理槽５の
内部に複数台の浸漬型膜モジュール１を配設し、各膜モ
ジュール１の内外を循環する槽内循環水流を生起する散
気装置７を設けている。
【００１１】ただし、複数台の膜モジュール１は、槽の
上下方向に積層するとともに、相対向する１組の槽壁５
ａ，５ｂのそれぞれから離れた位置に、槽壁５ａ，５ｂ
に沿う方向の側面が互いに隣接するように並列にかつ連
続して配置しており、ａ，ｂ各列の膜モジュール１と槽
壁５ａ，５ｂとの間にそれぞれ、循環水流のための流路
１２，１３を形成している。
【００１２】上記した構成によれば、図示したように、
ａ列の膜モジュール１では、散気装置７により生起され
る上昇流は、各膜モジュール１の内部を通過した後、隣
接する膜モジュールが存在しない方向、すなわち槽壁５
ａに向かう方向に流れ、次いで流路１２を下降し、次い
で各膜モジュール１の内部に流入する循環水流１１とな
る。
【００１３】同様に、ｂ列の膜モジュールでは、散気装
置７により生起される上昇流は、各膜モジュール１の内
部を通過した後、隣接する膜モジュールが存在しない方
向、すなわち槽壁５ｂに向かう方向に流れ、次いで流路
１３を下降し、次いで各膜モジュール１の内部に流入す
る循環水流となる。
【００１４】すなわち、ａ，ｂ各列の膜モジュール１ご
とに、互いの流れを妨害しない方向の循環水流１１が形
成されることになり、膜面洗浄効果や被処理液攪拌効果
や動力の点で効率がよい。
【００１５】このような膜モジュール１の配置によれ
ば、散気装置７や透過水吸引管（図示せず）、およびこ
れらに付随する装置の設置や組み立てが容易であり、ま
たその設置空間が少なくなるため、槽内空間を有効に利
用できる。したがって、数百台の膜モジュール１の設置
も可能である。
【００１６】なお、図２に示したように、複数台の膜モ
ジュールを上記と同様に並列に、かつ複数段に配置して
もよく、この場合、隣接する一方の段のｂ列の膜モジュ
ール１と、他方の段のａ列の膜モジュール１との間にも
循環水流のための流路１４が形成され、上記したのと同
様の効果が得られる。
【００１７】
【発明の効果】以上のように本発明によれば、処理槽の
内部に複数台の浸漬型膜モジュールを配設するに際し、
相対向する１組の槽壁に沿った方向に並列に膜モジュー
ルを配置して、各列の膜モジュールと各槽壁との間にそ
れぞれ循環水流の流路を形成するようにしたので、膜モ
ジュールの列ごとに、互いの流れを妨害しない循環水流
を形成することができ、この循環水流により効率的に膜
面洗浄や攪拌を行えるとともに、動力を低減できる。ま
た、循環水流供給手段などを容易に設置および組み立て
できるとともに、その設置空間を低減することができ、
槽内空間を有効に利用できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment apparatus in which a plurality of immersion type membrane modules are disposed inside a treatment tank. 2. Description of the Related Art As a water treatment apparatus for treating purified water or sewage, there is a water treatment apparatus in which a plurality of immersion type membrane modules are provided inside a treatment tank. For example, in the water treatment apparatus shown in FIGS. 2 to 5, the membrane module 1 has a rectangular parallelepiped shape by arranging a plurality of tubular ceramic separation membranes 4 inside a casing 3 in which a permeated water suction chamber 2 is formed. Is configured. Then, such a membrane separation device 1 is arranged in a plurality of stages and a plurality of rows (here, six rows and two rows) inside the processing tank 5, and the permeated water suction communicating with the permeated water suction chamber 2 of each membrane module 1. A tube 6 is provided, and an air diffuser 7 is provided below the laminated membrane module 1.
Is provided. A suction pump 8 is interposed in the permeated water suction pipe 6, and an air diffuser 7 is connected to a blower 9. 10
Is the water to be treated. In such a configuration, the suction pump 8 is driven to apply a suction pressure to the inside of the separation membrane 4, that is, the permeated water flow path 4 a through the permeated water suction pipe 6 and the permeated water suction chamber 2, whereby the separation membrane is separated. The water to be treated 10 is filtered by 4 and the permeated water that has passed through the membrane surface and flowed into the permeated water channel 4 a is taken out of the tank through the permeated water suction chamber 2 and the permeated water suction pipe 6. At this time, air bubbles diffused from the blower 9 through the air diffuser 7 generate a circulating water flow 11 in the tank that rises inside each membrane module 1, and the circulating water flow 11 containing the air bubbles causes the separation membrane 4 to flow. Try to clean the surface. [0005] In designing a water treatment apparatus as described above, in the case of a small- or medium-sized water treatment apparatus having a throughput of about 100 m 3 / day, about one to three rows of membrane separation devices are provided. Therefore, the circulating water flow in the tank and the efficiency of use of the space in the tank did not matter, but in recent years, there is a large-scale demand with a throughput of 1000 m 3 / day or more. It is necessary to study the shape of the processing tank and the method of arranging the membrane modules that can efficiently use the water. [0006] The present invention solves the above-mentioned problems, and when arranging a plurality of immersion-type membrane modules inside a processing tank, the immersion-type membrane modules are arranged so that the circulating water flow in the tank and the space in the tank can be used efficiently. The purpose is to do so. [0007] In order to solve the above-mentioned problems, a water treatment apparatus according to the present invention comprises a plurality of immersion-type membrane modules disposed in one treatment tank, and each of the membrane modules has a plurality of immersion-type membrane modules. In the water treatment apparatus provided with the circulating water flow supply means for supplying the circulating water flow in the tank, the plurality of membrane modules are stacked in the vertical direction of the tank and separated from each of a pair of opposed tank walls. Position, arranged in parallel so that the side surfaces in the direction along the tank wall are adjacent to each other, thereby forming a flow path of the circulating water flow in the tank on both sides of the membrane module arranged in parallel, and each arranged in parallel Each other in a row of membrane modules
It forms a circulating water flow that does not obstruct the flow . According to the above configuration, the water flow that has risen (or descended) inside each of the membrane modules flows in a direction in which there is no adjacent membrane module, that is, in a direction toward the flow path, and then descends (in the flow path). Or rise)
Next, the circulating water flows into each of the membrane modules. That is, a circulating water flow that does not hinder each other can be formed for each row of the membrane module, and the circulating water flow can efficiently clean the membrane surface. Further, the circulating water flow supply means and the like can be easily installed and assembled, the installation space can be reduced, and the space in the tank can be used effectively. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a water treatment apparatus according to an embodiment of the present invention. This water treatment apparatus has the same configuration as the conventional one described with reference to FIGS. Are provided with a plurality of immersion type membrane modules 1, and an air diffuser 7 for generating a circulating water flow in the tank circulating inside and outside each membrane module 1. However, a plurality of membrane modules 1 are stacked in the vertical direction of the tank and a pair of tank walls 5 opposed to each other.
a, 5b, the tank walls 5a, 5b
Are arranged in parallel and continuously so that the side surfaces in the direction along are adjacent to each other, and flow passages for the circulating water flow are respectively provided between the membrane modules 1 in each of the rows a and b and the tank walls 5a and 5b. 12 and 13 are formed. According to the above configuration, as shown in the figure,
In the membrane modules 1 in row a, the ascending flow generated by the air diffuser 7 passes through the inside of each membrane module 1, and then the direction in which there is no adjacent membrane module, that is, the tank wall 5.
a, and then descends the flow channel 12, and then becomes the circulating water flow 11 flowing into each membrane module 1. Similarly, in the membrane modules in row b, the ascending flow generated by the air diffuser 7 passes through the inside of each membrane module 1 and then flows in the direction in which there is no adjacent membrane module, ie, in the tank wall 5b. Then, the circulating water flows in the flow direction, then descends the flow path 13, and then flows into the inside of each membrane module 1. That is, a circulating water flow 11 is formed in each direction of the membrane modules 1 in each of the rows a and b so as not to hinder each other's flow. It is efficient. According to such an arrangement of the membrane module 1, it is easy to install and assemble the diffuser 7 and the permeated water suction pipe (not shown), and the devices associated therewith, and the installation space is small. The space inside the tank can be used effectively because it is reduced. Therefore, several hundred membrane modules 1 can be installed. As shown in FIG. 2, a plurality of membrane modules may be arranged in parallel and in a plurality of stages in the same manner as described above. A flow path 14 for circulating water flow is also formed between the membrane module 1 and the other row of the membrane modules 1 in row a, and the same effects as described above can be obtained. As described above, according to the present invention, when arranging a plurality of immersion-type membrane modules inside a processing tank,
Since the membrane modules are arranged in parallel in the direction along one set of opposed tank walls, and a flow path of a circulating water flow is formed between the membrane modules in each row and each tank wall, respectively. A circulating water flow that does not hinder each other's flow can be formed for each row of modules, and this circulating water flow can efficiently perform membrane surface cleaning and agitation and reduce power. In addition, circulating water flow supply means and the like can be easily installed and assembled, and the installation space can be reduced,
The space inside the tank can be used effectively.
【図面の簡単な説明】
【図１】本発明の一実施形態の水処理装置における膜モ
ジュールの配置を示した説明図である。
【図２】本発明の他の実施形態の水処理装置における膜
モジュールの配置を示した説明図である。
【図３】本発明の水処理装置または従来の水処理装置に
配設される従来よりある膜モジュールの全体構成を示し
た断面図である。
【図４】従来の水処理装置の平面図である。
【図５】図４に示した水処理装置のＡ−Ａ’断面図であ
る。
【図６】図４に示した水処理装置のＢ−Ｂ’断面図であ
る。
【符号の説明】
１ 膜モジュール
５ 処理槽
5a,5b 槽壁
７ 散気装置
11 循環水流
12,13 流路BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing an arrangement of a membrane module in a water treatment apparatus according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing an arrangement of a membrane module in a water treatment apparatus according to another embodiment of the present invention. FIG. 3 is a cross-sectional view showing the overall configuration of a conventional membrane module disposed in the water treatment apparatus of the present invention or a conventional water treatment apparatus. FIG. 4 is a plan view of a conventional water treatment apparatus. FIG. 5 is a sectional view taken along line AA ′ of the water treatment apparatus shown in FIG. 6 is a sectional view of the water treatment apparatus shown in FIG. 4, taken along line BB '. [Explanation of Signs] 1 Membrane module 5 Treatment tank 5a, 5b Tank wall 7 Air diffuser 11 Circulating water flow 12, 13 Channel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 尾崎 俊也 大阪府大阪市西淀川区西島２丁目１番地 ６号 株式会社クボタ 新淀川工場内 (72)発明者 塩山 昌彦 大阪府大阪市西淀川区西島２丁目１番地 ６号 株式会社クボタ 新淀川工場内 (56)参考文献 特開 平８−299979（ＪＰ，Ａ) 実開 平４−57202（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) C02F 1/44 B01D 63/06,65/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshiya Ozaki 2-1-1, Nishijima, Nishiyodogawa-ku, Osaka-shi, Osaka Inside Kubota Shin-Yodogawa Plant (72) Inventor Masahiko Shioyama 2-chome Nishijima, Nishiyodogawa-ku, Osaka-shi, Osaka No. 1 No. 6 Kubota Co., Ltd. Shin-Yodogawa Plant (56) References JP-A-8-299979 (JP, A) JP-A-4-57202 (JP, U) (58) Fields investigated (Int. Cl. 7) , DB name) C02F 1/44 B01D 63 / 06,65 / 00
Claims (1)
モジュールを配設し、各膜モジュールに槽内循環水流を
供給する循環水流供給手段を設けた水処理装置におい
て、前記複数台の膜モジュールは、槽の上下方向に積層
するとともに、相対向する１組の槽壁のそれぞれから離
れた位置に、前記槽壁に沿う方向の側面が互いに隣接す
るように並列に配置し、それにより、並列に配置した膜
モジュールの両側に槽内循環水流の流路を形成し、並列
に配置した各膜モジュールの列ごとに互いの流れを妨害
しない循環水流を形成することを特徴とする水処理装
置。(57) [Claims 1] A plurality of immersion type membrane modules are provided inside one processing tank, and a circulating water flow supply means for supplying a circulating water flow in the tank is provided for each membrane module. In the water treatment apparatus, the plurality of membrane modules are stacked in the vertical direction of the tank, and the side faces in the direction along the tank wall are adjacent to each other at a position apart from each of a pair of opposed tank walls. So that the channels of the circulating water flow in the tank are formed on both sides of the membrane modules arranged in parallel.
Block each other for each row of membrane modules placed in
A water treatment apparatus characterized by forming a circulating water flow .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12758896A JP3408692B2 (en) | 1996-05-23 | 1996-05-23 | Water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12758896A JP3408692B2 (en) | 1996-05-23 | 1996-05-23 | Water treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09314144A JPH09314144A (en) | 1997-12-09 |
| JP3408692B2 true JP3408692B2 (en) | 2003-05-19 |
Family
ID=14963793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12758896A Expired - Lifetime JP3408692B2 (en) | 1996-05-23 | 1996-05-23 | Water treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3408692B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0937494A3 (en) * | 1998-02-23 | 2000-03-01 | Kubota Corporation | Membrane separation system |
-
1996
- 1996-05-23 JP JP12758896A patent/JP3408692B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09314144A (en) | 1997-12-09 |
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