JP3094406B2 - Sludge concentration equipment - Google Patents
Sludge concentration equipmentInfo
- Publication number
- JP3094406B2 JP3094406B2 JP06157952A JP15795294A JP3094406B2 JP 3094406 B2 JP3094406 B2 JP 3094406B2 JP 06157952 A JP06157952 A JP 06157952A JP 15795294 A JP15795294 A JP 15795294A JP 3094406 B2 JP3094406 B2 JP 3094406B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- stock solution
- air
- filtrate
- 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 - Fee Related
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Sludge (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、汚泥等の濃縮装置の
改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an apparatus for concentrating sludge and the like.
【０００２】[0002]
【従来の技術】従来、中空糸状に構成した（中空糸膜）
を束ねて汚濁水中に浸漬して汚濁水をろ過し、中空内管
からろ液を取出すことは知られている。そして、この汚
濁水をろ過濃縮するに当たって、中空糸膜の周辺で汚濁
水を流動させて、中空糸膜が目詰まりするのを防止する
ことも知られている。2. Description of the Related Art Conventionally, a hollow fiber is formed (hollow fiber membrane).
It is known to bundle and immerse them in polluted water to filter the polluted water and take out the filtrate from the hollow inner tube. It is also known that, when the contaminated water is filtered and concentrated, the contaminated water is caused to flow around the hollow fiber membrane to prevent the hollow fiber membrane from being clogged.
【０００３】[0003]
【発明が解決しようとする課題】然しながら、従来の装
置では、束ねた中空糸膜が汚濁水中に浸漬してあるのみ
であるので、中空糸膜の周辺で汚泥濁水が流動しにく
く、目詰まりし易く、また、目詰まりして逆洗するにあ
たっても剥離したケーキを除去し難い。However, in the conventional apparatus, since the bundled hollow fiber membranes are only immersed in the polluted water, the sludge suspended water hardly flows around the hollow fiber membranes and becomes clogged. Also, it is difficult to remove the peeled cake upon clogging and backwashing.
【０００４】[0004]
【課題を解決するための手段】この発明は、中空糸膜を
用いた汚濁水のろ過あるいは濃縮するに際して、中空糸
膜が目詰まりしにくく、また、目詰まりしたときでもケ
ーキを容易に剥離除去することができるようにしたもの
であって、その要旨とするところは、周部に多数の微細
通孔を設けた散気管の周りに、多数の中空糸膜を並列し
てその上端および下端を散気管の上端部分および下端部
分で集束して固定し、その中空糸膜の上端をろ液室内に
開口させ、その中空糸膜の下端を止金で閉塞して中空糸
膜のモジュールを構成し、この中空糸膜モジュールを原
液槽中に浸漬させて設置し、散気管の上端を高圧空気源
に接続し、さらに、止金をバブリング用の空気源に接続
したものである。According to the present invention, when filtering or concentrating polluted water using a hollow fiber membrane, the hollow fiber membrane is hardly clogged, and even when clogged, the cake is easily peeled and removed. The point of the gist is that a number of hollow fiber membranes are arranged in parallel around an air diffuser with a number of fine through holes in the periphery, and the upper and lower ends thereof are arranged in parallel. A bundle is fixed at the upper end and the lower end of the air diffuser, the upper end of the hollow fiber membrane is opened into the filtrate chamber, and the lower end of the hollow fiber membrane is closed with a stopper to form a hollow fiber membrane module. The hollow fiber membrane module was immersed in a stock solution tank and installed. The upper end of the air diffuser was connected to a high-pressure air source, and the stopper was connected to an air source for bubbling.
【０００５】[0005]
【作用】この発明に係る装置は上述のように構成してあ
り、中空糸膜のモジュールを原液槽中に浸漬させて、バ
ブリングエヤーを送りつつ、ろ液室を吸引する（大気開
放槽の場合）と、原液を中空糸膜によってろ過してろ液
を取出すことができ、原液槽中に液分が分離された濃縮
液を得ることができる。密閉槽の場合は、槽内を加圧す
ることによって中空糸膜を経たろ液を取出し、槽内に濃
縮液を得ることができる。The apparatus according to the present invention is constructed as described above. The hollow fiber membrane module is immersed in the stock solution tank, and the filtrate chamber is sucked while sending the bubbling air (in the case of the atmosphere open tank). ), The filtrate can be taken out by filtering the stock solution through the hollow fiber membrane, and a concentrated solution in which the liquid component is separated in the stock solution tank can be obtained. In the case of a closed tank, the filtrate passing through the hollow fiber membrane is taken out by pressurizing the inside of the tank, and a concentrated liquid can be obtained in the tank.
【０００６】上述のようなろ過運転の場合、この発明に
係る装置では、バブリングエヤーが中空糸膜間に吹き込
まれるので、中空糸膜が目詰まりしにくく、長時間の連
続運転が可能でろ過効率が高いとともに、原液から分離
されたケーキが中空糸膜の集束外に洗い出されて均一に
混和された濃縮液を槽内に得ることができる。In the case of the above-mentioned filtration operation, in the apparatus according to the present invention, since the bubbling air is blown between the hollow fiber membranes, the hollow fiber membrane is hardly clogged, the continuous operation is possible for a long time, and the filtration efficiency is improved. And the cake separated from the undiluted solution is washed out of the bundle of the hollow fiber membranes to obtain a uniformly mixed concentrated liquid in the tank.
【０００７】そして、上述のような運転を継続して中空
糸膜が目詰まりしたときには、ろ液の取出口から高圧の
逆洗流体を送ることにより中空糸膜が逆洗され、その表
面のケーキを除去することができる。これと同時に中心
部の散気管に高圧空気を送ることによって、上述逆洗流
体によって剥離したケーキを中空糸膜の集束内から排出
することができる。このようにして、再生した中空糸膜
の外側周辺には、ケーキが滞留してないので次段の運転
に際して効率のよいろ過運転をすることができる。以
下、図面に基づいてこの発明を具体的に説明する。[0007] When the hollow fiber membrane is clogged by continuing the above operation, the hollow fiber membrane is backwashed by sending a high-pressure backwashing fluid from the filtrate outlet, and the cake on the surface is removed. Can be removed. At the same time, by sending high-pressure air to the central air diffuser, the cake separated by the backwash fluid can be discharged from the inside of the bundle of the hollow fiber membranes. In this way, the cake does not stay around the outer periphery of the regenerated hollow fiber membrane, so that an efficient filtration operation can be performed in the next operation. Hereinafter, the present invention will be specifically described with reference to the drawings.
【０００８】[0008]
【実施例】図１は、この発明に係る濃縮装置の模式正面
図であり、符号１は、密封式の原液槽、２は、原液槽１
の内部に多数並列した中空糸膜モジュール、３は原液の
供給管、４はろ液の取出管でその後位には、開閉弁５を
介してろ液の取出管６、逆洗エヤー管７、逆洗水管８が
接続してある。９は、バブリングエヤーの送入管、１０
は散気空気の供給管、１１は濃縮液の取出管である。FIG. 1 is a schematic front view of a concentration apparatus according to the present invention, wherein reference numeral 1 denotes a sealed stock solution tank, and reference numeral 2 denotes a stock solution tank 1.
A number of hollow fiber membrane modules are arranged in parallel inside, and 3 is a stock solution supply pipe, 4 is a filtrate take-out pipe, and a filtrate take-out pipe 6, a backwash air pipe 7, and a backwash air pipe 7 are provided at the subsequent position through an on-off valve 5. A water pipe 8 is connected. 9 is a bubbling air inlet pipe, 10
Is a supply pipe for diffused air, and 11 is a pipe for taking out concentrated liquid.
【０００９】次に、上記中空糸膜モジュールの構成につ
いて図２にしたがって説明する。図２において、符号１
２には、その周部に多数の微細通孔を有する散気管であ
って、セラミック等で構成されていてその下端は盲状と
し、その周辺には多数の中空糸膜２ａが配列してある。
この中空糸膜２ａの下端は止金１３で保持されており、
その上端は保持メタル１４で集束された上でろ液室１５
内に開口している。符号１６は、バブリング用のエヤー
の供給口金であり、止金に一体に取付けられていてその
上面が中空糸膜２ａの集束内に向けて開口させてある。
尚、符号１７は、補強リングであり、中空糸膜２ａの集
束内を洗浄する際に、これが大きく撓んで破損するのを
防止するために設けたものである。Next, the configuration of the hollow fiber membrane module will be described with reference to FIG. In FIG.
Reference numeral 2 denotes an air diffuser having a large number of fine through holes in its periphery, which is made of ceramic or the like, has a blind lower end, and has a number of hollow fiber membranes 2a arranged around it. .
The lower end of the hollow fiber membrane 2a is held by a stopper 13.
The upper end is collected by the holding metal 14 and then filtered.
Open inside. Reference numeral 16 denotes a bubbling air supply base, which is integrally attached to a stopper and has an upper surface opened toward the inside of the bundle of the hollow fiber membranes 2a.
Reference numeral 17 denotes a reinforcing ring, which is provided to prevent the hollow fiber membrane 2a from being largely bent and damaged when cleaning the inside of the bundle of the hollow fiber membranes 2a.
【００１０】この発明に係る装置は、上述のように構成
してあり、原液槽１内に原液を圧入するとともに送入管
９からバブリングエヤーを送入することによって、原液
は、中空糸膜２ａでろ過され、そのろ液は、取出管６か
ら槽外に取出され、そのケーキは、供給口金１６からの
バブリングエヤーによって中空糸膜２ａの集束外に拡散
し、槽内に濃縮液を得ることができる。The apparatus according to the present invention is configured as described above, and by feeding the stock solution into the stock solution tank 1 and sending bubbling air from the feed pipe 9, the stock solution becomes the hollow fiber membrane 2a. The filtrate is taken out of the tank through the take-out pipe 6, and the cake is diffused outside the convergence of the hollow fiber membrane 2 a by bubbling air from the supply mouthpiece 16 to obtain a concentrated liquid in the tank. Can be.
【００１１】すなわち、この発明では、ろ過運転時に中
空糸膜２ａの周辺の原液がパブリングエヤーによって流
動するので、原液から分離されたケーキが中空糸膜２ａ
の集束（モジュール）内に滞留することがなく、従っ
て、中空糸膜２ａが目詰まりすることなく効率のよいろ
過濃縮作業をすることができる。In other words, according to the present invention, the stock solution around the hollow fiber membrane 2a flows by the publishing air during the filtration operation, so that the cake separated from the stock solution becomes hollow fiber membrane 2a.
Therefore, efficient filtration and concentration can be performed without the hollow fiber membranes 2a being clogged.
【００１２】次に、このようなろ過濃縮運転を継続して
中空糸膜２ａが目詰まりしたときには、ろ液の取出管４
を閉止して逆洗エヤー管７および逆洗水管８から逆洗エ
ヤーおよび逆洗水を送ることによって、中空糸膜２ａの
表面のケーキを剥離することができる。同時に散気管１
２から高圧空気を噴出させることによって、上記剥離し
たケーキを中空糸膜２ａの集束外に拡散させることがで
きる。このとき、補強リング１７は、中空糸膜２ａが大
きく撓んで破損等するのを防止することができる。Next, when such a filtration and concentration operation is continued and the hollow fiber membrane 2a is clogged, the filtrate extraction pipe 4
Is closed and the backwash air and the backwash water are sent from the backwash air pipe 7 and the backwash water pipe 8, whereby the cake on the surface of the hollow fiber membrane 2a can be peeled off. Diffuser 1 at the same time
By ejecting high-pressure air from 2, the peeled cake can be diffused outside the convergence of the hollow fiber membrane 2 a. At this time, the reinforcing ring 17 can prevent the hollow fiber membrane 2a from being largely bent and damaged.
【００１３】すなわち、この発明に係る装置では、逆洗
後の中空糸膜２ａの集束内にケーキが滞留せず、槽内に
拡散しているので、このまま、ろ過濃縮運転を再開し、
さらに、濃縮された原液を得ることができる。尚、ろ過
濃縮運転を再開することなく、濃縮原液を取出し得るの
は勿論である。また、図例の原液槽１は密閉式である
が、この発明に係る中空糸膜モジュール２は大気に開放
された大型の原液槽に浸漬して用いることができる。こ
の場合の濃縮運転は、ろ液取出管を真空吸引するもので
ある。That is, in the apparatus according to the present invention, since the cake does not stay in the bundle of the hollow fiber membranes 2a after backwashing but diffuses into the tank, the filtration and concentration operation is resumed as it is,
Further, a concentrated stock solution can be obtained. It is needless to say that the concentrated undiluted solution can be taken out without restarting the filtration and concentration operation. Although the stock solution tank 1 in the illustrated example is a closed type, the hollow fiber membrane module 2 according to the present invention can be used by immersing it in a large stock solution tank open to the atmosphere. The concentration operation in this case is to suction the filtrate outlet tube under vacuum.
【００１４】[0014]
【発明の効果】このように、この発明に係るろ過濃縮装
置は、バブリングエヤーによって中空糸膜の表面部にケ
ーキが滞留しないので、効率のよいろ過濃縮運転が可能
であるとともに、逆洗時には散気管からの高圧空気によ
って中空糸膜モジュール内がブローされ、剥離されたケ
ーキを完全に除去することができ、中空糸膜の寿命の長
いろ過濃縮運転をすることが可能でランニングコストも
大巾に低減し得るものである。As described above, since the cake does not stay on the surface of the hollow fiber membrane due to the bubbling air, the filtration and concentration apparatus according to the present invention can perform an efficient filtration and concentration operation, and can perform dispersion during back washing. The inside of the hollow fiber membrane module is blown by high-pressure air from the trachea, the peeled cake can be completely removed, the filtration and concentration operation with a long life of the hollow fiber membrane can be performed, and the running cost is also large. It can be reduced.
【図面の簡単な説明】[Brief description of the drawings]
【図１】この発明に係る濃縮装置の概略の模式正面図で
ある。FIG. 1 is a schematic front view schematically showing a concentration device according to the present invention.
【図２】この発明に係る中空糸膜モジュールの縦断面図
である。FIG. 2 is a longitudinal sectional view of the hollow fiber membrane module according to the present invention.
１ 原液槽 ２ 中空糸膜モジュール ２ａ 中空糸膜 ４ ろ液の取出管 １２ 散気管 １３ 止金 １５ ろ液室 DESCRIPTION OF SYMBOLS 1 Undiluted solution tank 2 Hollow fiber membrane module 2a Hollow fiber membrane 4 Filtrate take-out tube 12 Aeration tube 13 Stopper 15 Filtrate chamber
Claims (1)
２の周りに多数の中空糸膜２ａを並列してその上端およ
び下端を散気管１２の上端部分および下端部分で集束固
定し、その中空糸膜の上端をろ液室１５内に開口させ、
その中空糸膜２ａの下端を止金１３で閉塞して中空糸膜
モジュール２を構成し、この中空糸膜モジュール２を原
液槽１中に浸漬させて設置し、前記ろ液室１５を原液槽
１外のろ液の取出管４に接続し、散気管１２の上端を高
圧空気源に接続し、さらに、止金１３をバブリング用の
空気源に接続してなる汚泥等の濃縮装置。1. An air diffuser 1 provided with a large number of fine through holes in a peripheral portion.
A number of hollow fiber membranes 2a are arranged in parallel around 2 and their upper and lower ends are focused and fixed at the upper and lower ends of the air diffuser 12, and the upper end of the hollow fiber membrane is opened into the filtrate chamber 15,
The lower end of the hollow fiber membrane 2a is closed by a stopper 13 to form a hollow fiber membrane module 2, and the hollow fiber membrane module 2 is immersed and installed in the stock solution tank 1, and the filtrate chamber 15 is set in the stock solution tank. (1) An apparatus for concentrating sludge and the like, wherein the apparatus is connected to the outside filtrate extraction pipe 4, the upper end of the diffuser pipe 12 is connected to a high-pressure air source, and the stopper 13 is connected to an air source for bubbling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06157952A JP3094406B2 (en) | 1994-06-15 | 1994-06-15 | Sludge concentration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06157952A JP3094406B2 (en) | 1994-06-15 | 1994-06-15 | Sludge concentration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07328396A JPH07328396A (en) | 1995-12-19 |
| JP3094406B2 true JP3094406B2 (en) | 2000-10-03 |
Family
ID=15661054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06157952A Expired - Fee Related JP3094406B2 (en) | 1994-06-15 | 1994-06-15 | Sludge concentration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3094406B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102593052B1 (en) | 2017-11-13 | 2023-10-25 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | Shell structure and mask including same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10045226B4 (en) * | 2000-09-13 | 2005-06-09 | Puron Ag | Process for producing fabric-reinforced capillary membranes, in particular for ultrafiltration |
| KR100877635B1 (en) * | 2002-06-19 | 2009-01-12 | 에치투엘 주식회사 | Wastewater treatment apparatus with composite separation membrane module |
-
1994
- 1994-06-15 JP JP06157952A patent/JP3094406B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102593052B1 (en) | 2017-11-13 | 2023-10-25 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | Shell structure and mask including same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07328396A (en) | 1995-12-19 |
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