JPH0596136A - Hollow-fiber membrane module and using method therefor - Google Patents
Hollow-fiber membrane module and using method thereforInfo
- Publication number
- JPH0596136A JPH0596136A JP3257954A JP25795491A JPH0596136A JP H0596136 A JPH0596136 A JP H0596136A JP 3257954 A JP3257954 A JP 3257954A JP 25795491 A JP25795491 A JP 25795491A JP H0596136 A JPH0596136 A JP H0596136A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- membrane module
- pipe
- module
- 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.)
- Granted
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液体の濾過操作を行な
うための中空糸膜モジュールおよびその使用方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow fiber membrane module for performing a liquid filtration operation and a method of using the same.
【０００２】[0002]
【従来の技術】一般の工業用水中には、多くのＳＳ成
分、微粒子、ゴミ、細菌類、藻類、などが含まれてお
り、このまま使用されると、用水配管の詰まり、細菌の
増殖、ライン中のスケール堆積などのトラブルを生じる
原因となりやすい。従来、これらの水中混入成分を除去
するために、砂濾過、凝集濾過、凝集沈殿処理、カート
リッジフィルター濾過などの各種の方法が用途に応じて
使用されてきた。これらの一般濾過法に変わる新規な手
法として、最近は多孔質の中空糸膜による濾過が実用化
され始めつつある。中空糸膜による水処理、濾過は、近
年急速に普及され、その適用分野も年々広くなりつつあ
る。2. Description of the Related Art General industrial water contains many SS components, fine particles, dust, bacteria, algae, etc. If used as is, clogging of water pipes, bacterial growth, lines It is easy to cause troubles such as scale accumulation inside. Conventionally, various methods such as sand filtration, coagulation filtration, coagulation sedimentation treatment, and cartridge filter filtration have been used in order to remove these water-mixed components, depending on the application. As a new method replacing these general filtration methods, recently, filtration using a porous hollow fiber membrane has begun to be put into practical use. Water treatment and filtration using hollow fiber membranes have been rapidly spread in recent years, and their fields of application are also expanding year by year.
【０００３】中空糸膜の濾過において、中空糸膜は何千
〜何万本をひと束に束ねた後に端部を接着剤で固定した
形状の商品形態に加工される。そして、これらの商品形
態に加工されたものは、中空糸膜モジュールまたはモジ
ュールと呼ばれている。液体の濾過が可能な中空糸膜モ
ジュールとしては従来から多くの形態のものが提案され
ている。特に初期のものとしては、適度な前処理手段と
組み合わせて使用される濾過モジュール、逆浸透濾過を
目的としたもの、透析用途を目的としたものなどがあ
り、これらの用途を主目的として、多くのモジュール形
態が提案されており、その主なものを挙げると、特公昭
４８−２８３８０号公報、特開昭４９−６９５５０号公
報、特開昭５３−１００１７６号公報、などに記載され
ているものがある。これらは、全て、液体の濾過を実施
するにあたり、使い捨て、あるいは、汚れが一定量以上
付着した段階において、清澄水または薬液水による洗浄
やフラッシング処理を実施するのが普通であった。In filtration of hollow fiber membranes, the hollow fiber membranes are processed into a product form in which thousands to tens of thousands are bundled into a bundle and the ends are fixed with an adhesive. The products processed into these product forms are called hollow fiber membrane modules or modules. Many types of hollow fiber membrane modules capable of filtering liquid have been proposed in the past. Especially, the initial ones include a filtration module used in combination with an appropriate pretreatment means, one for the purpose of reverse osmosis filtration, one for the purpose of dialysis, etc. The module forms have been proposed, and the main ones thereof are described in JP-B-48-28380, JP-A-49-69550, JP-A-53-110076, and the like. There is. In all of these processes, when performing liquid filtration, it was usual to carry out cleaning or flushing treatment with clear water or chemical liquid water at the stage of being disposable or at a stage where a certain amount of dirt adheres.
【０００４】これに対して、最近は、中空糸膜モジュー
ル形状に工夫をこらし、エアーにより中空糸膜面の付着
物を定期的に脱落させて中空糸膜の性能回復を実施する
方法が試みられている。特開昭６１−２６３６０５号公
報は、中空糸膜をＵ字型に組み込み、容器に収納して使
用をするものであり、定期的に容器の下部に設けられた
エアー導入口からエアーを導入させてエアーバブリング
により中空糸膜を振動させ、膜面の堆積物の除去を試み
るものである。また、特開昭６０−２０６４１５号公報
は、中空糸膜を中心パイプの回りに配列させた両端固定
型モジュールであり、前記同様に容器に組み込み、エア
ーバブリングにより中空糸膜膜面の堆積物を除去するも
のである。これらの技術は、既に実用化の検討が開始さ
れている。On the other hand, recently, a method has been attempted in which the shape of the hollow fiber membrane module is devised, and the adhered substances on the surface of the hollow fiber membrane are regularly removed by air to recover the performance of the hollow fiber membrane. ing. Japanese Unexamined Patent Publication No. 61-263605 discloses that a hollow fiber membrane is incorporated in a U shape and is used by being housed in a container, and air is regularly introduced from an air introduction port provided at the bottom of the container. The hollow fiber membrane is vibrated by air bubbling to try to remove the deposits on the membrane surface. Further, JP-A-60-206415 is a fixed-end type module in which hollow fiber membranes are arranged around a central pipe, which is incorporated into a container in the same manner as described above, and a deposit on the surface of the hollow fiber membranes is removed by air bubbling. To remove. These technologies have already been studied for practical use.
【０００５】[0005]
【発明が解決しようとする課題】中空糸膜モジュールに
よる水処理において、中空糸膜表面の堆積物をエアーに
より除去するのは良い方法ではあるが、現状のモジュー
ルにおいては、下記の課題が残されている。すなわち、
実際の濾過処理においては、中空糸膜モジュールの本数
を多数使用する場合が多くなり、モジュールのコストダ
ウンが要求されてくる。モジュールの使用においては、
現状のモジュールは一般に容器組み込み型になっている
ので、モジュール本体の他に容器が必要となり、この容
器もある程度の圧力に耐え、かつ、モジュール本体の取
り付け、取り外しに適したものでなければならない。よ
って、モジュール容器の別製作により、モジュールコス
トが高くなり、実用化への障害となっている。また、容
器とモジュールを一体型にすると、従来のモジュール形
状では、エアーを中空糸膜の束の内部に均一に導入する
ことが難しくなり、中空糸膜表面の堆積物除去効果が小
さくなり、トータルのモジュール寿命が短くなるという
欠点があった。In the water treatment by the hollow fiber membrane module, it is a good method to remove the deposits on the surface of the hollow fiber membrane by air, but in the current module, the following problems remain. ing. That is,
In the actual filtration process, a large number of hollow fiber membrane modules are used in many cases, which requires cost reduction of the modules. In using the module,
Since the current module is generally of a container built-in type, a container is required in addition to the module main body, and this container must be able to withstand a certain amount of pressure and be suitable for mounting and removing the module main body. Therefore, the module cost is increased due to the separate production of the module container, which is an obstacle to practical use. In addition, if the container and module are integrated, it becomes difficult to uniformly introduce air into the bundle of hollow fiber membranes with the conventional module shape, and the effect of removing deposits on the surface of the hollow fiber membranes is reduced, resulting in total However, it had the drawback of shortening the module life.
【０００６】[0006]
【課題を解決するための手段】本発明の目的は、側面に
細孔を有するパイプの回りに多数の多孔質の中空糸膜が
配列された状態で外筒の中に充填され、該パイプの少な
くとも一方の端部および該中空糸膜束の両端部が接着剤
で外筒の端部に固定され、かつ一方の該中空糸膜束の固
定された端部が切断により中空糸膜内部を開孔状態とさ
れている中空糸膜モジュールにおいて、該パイプ側面の
細孔が、該中空糸膜モジュールの長さ方向の中心よりも
一方の固定された端部側に位置していることを特徴とす
る中空糸膜モジュールにより基本的に達成される。SUMMARY OF THE INVENTION The object of the present invention is to fill a large number of porous hollow fiber membranes around a pipe having pores on its side surface in an outer cylinder, At least one end and both ends of the hollow fiber membrane bundle are fixed to the end of the outer cylinder with an adhesive, and one fixed end of the hollow fiber membrane bundle is cut to open the inside of the hollow fiber membrane. In the hollow fiber membrane module in the hole state, the pores on the side surface of the pipe are located on one fixed end side with respect to the center in the length direction of the hollow fiber membrane module. It is basically achieved by the hollow fiber membrane module.
【０００７】[0007]
【作用】本発明にかかる実施例を図１および図２に示
す。1 and 2 show an embodiment according to the present invention.
【０００８】濾過される供給水は、モジュールの原水供
給ノズル８から中空糸膜モジュール内部の中空糸膜束内
部に供給される。あらかじめ、ドレンノズル７とエアー
入り口バルブ１３は近傍のバルブによって閉じられてお
り、また、初めにモジュール内部にあったエアーは、エ
アー抜きノズル６から系外へ除去されている。中空糸膜
束内部に供給された供給水は、圧力と温度に応じた中空
糸膜性能に応じて、中空糸膜内部に透過濾過され、濾過
水として濾過水集水部１４を通じて出口１１から取り出
される。長時間この濾過運転を継続していると、中空糸
膜の膜表面に、除去された水中の懸濁成分、細菌類、ご
み類などが堆積し、中空糸膜の濾過抵抗を増加させ、同
一の運転条件における中空糸膜モジュールの透過水量が
低下する。よって、この段階において、原水供給ノズル
８に通じるバルブを閉じて中空糸膜モジュールへの供給
水の供給を一時停止し、エアー抜きノズル６を開く。そ
して、エアー入り口バルブ１３を開き調節することによ
り、モジュールの中心パイプにエアーを供給して該パイ
プの下部側面に開いている細孔９からエアーをバブリン
グさせ、一定時間の間中空糸膜をエアーにより揺らし、
膜面の付着物を振動除去させる。しかして、膜面の付着
物、堆積物等を除去した後は、ドレンバルブ７を開いて
汚れた水を捨て、モジュール系内の水洗を行ったあと
で、再度濾過運転を実施することができる。The supply water to be filtered is supplied from the raw water supply nozzle 8 of the module into the hollow fiber membrane bundle inside the hollow fiber membrane module. In advance, the drain nozzle 7 and the air inlet valve 13 are closed by a nearby valve, and the air initially inside the module is removed from the air vent nozzle 6 to the outside of the system. The supply water supplied to the inside of the hollow fiber membrane bundle is permeated and filtered into the inside of the hollow fiber membrane according to the performance of the hollow fiber membrane according to the pressure and the temperature, and is taken out from the outlet 11 as filtered water through the filtered water collecting section 14. Be done. If this filtration operation is continued for a long time, suspended components in water, bacteria, and debris that have been removed accumulate on the surface of the hollow fiber membrane, increasing the filtration resistance of the hollow fiber membrane, and The amount of permeated water of the hollow fiber membrane module under the operating conditions of 1. Therefore, at this stage, the valve leading to the raw water supply nozzle 8 is closed to temporarily stop the supply of the supply water to the hollow fiber membrane module, and the air vent nozzle 6 is opened. Then, by opening and adjusting the air inlet valve 13, air is supplied to the central pipe of the module so that air is bubbled through the pores 9 which are open on the lower side surface of the pipe, and the hollow fiber membrane is aired for a certain period of time. Shakes,
The deposits on the film surface are removed by vibration. Then, after removing the deposits and deposits on the film surface, the drain valve 7 is opened to discard the dirty water, the module system is washed, and then the filtration operation can be performed again. ..
【０００９】本発明の中空糸膜モジュールは、中心パイ
プの回りに中空糸膜を配列させた構造であるが、中心パ
イプとしては、エアーの通り道になる機能を満足してお
れば、長さおよび外径、内径に限定はない。中心パイプ
からエアーが出ていく細孔については、モジュールを縦
型に配置させた状態で、該中空糸膜モジュールの長さ方
向の中心よりも、下方の端板側に細孔が位置しているこ
とが必要である。エアーバブリングにおいてエアーは中
空糸膜束をできるだけ均一に揺らすことが望ましく、こ
のためには、エアー出口である中心パイプの細孔が中空
糸膜モジュールの中心よりも下部の位置にあることが望
ましい。中心パイプの細孔の位置がモジュール中心より
上方の端板側にあると、エアーバブリング用のエアーが
中空糸膜束内部に均一に分配、導入されず、中空糸を揺
らす効果が不十分となる。また、特に好ましくは、モジ
ュールの、下方の端板部から細孔の一番遠い位置までの
距離が、モジュールの全長の２５％である範囲内に収ま
っていることが好ましい。なお、モジュールの中心とい
う意味は、モジュールの中空糸膜有効部分の縦方向中
心、即ち、該上方の端板の中空糸膜束の付け根から、下
方の端板の中空糸膜付け根部分までの距離の中心の点を
示す。The hollow fiber membrane module of the present invention has a structure in which the hollow fiber membranes are arranged around the central pipe, but if the central pipe satisfies the function of air passage, the length and The outer diameter and inner diameter are not limited. Regarding the pores from which air flows out from the central pipe, the pores are located on the end plate side below the center in the longitudinal direction of the hollow fiber membrane module in a state where the module is arranged vertically. Need to be present. In the air bubbling, it is desirable that the air shakes the hollow fiber membrane bundle as uniformly as possible. For this purpose, it is desirable that the pores of the central pipe, which is the air outlet, be located below the center of the hollow fiber membrane module. When the position of the pores of the central pipe is on the end plate side above the center of the module, air for air bubbling is not evenly distributed and introduced into the hollow fiber membrane bundle, and the effect of shaking the hollow fiber becomes insufficient. .. Further, particularly preferably, it is preferable that the distance from the lower end plate portion of the module to the farthest position of the pore is within a range of 25% of the total length of the module. The center of the module means the vertical center of the hollow fiber membrane effective portion of the module, that is, the distance from the root of the hollow fiber membrane bundle of the upper end plate to the hollow fiber membrane root of the lower end plate. Indicates the center point of the.
【００１０】中空糸膜束の両端部は、接着剤で固定され
ており、通常はモジュールを縦型に配置した時の上部と
なる方の接着剤固定部のみ、接着後に切断により中空糸
膜の内部を開孔した状態になっている。中空糸膜の上方
の端板面側の中心パイプの端は、接着剤や栓状のもので
目止めされている。通常は下部にあたる中空糸膜の非開
孔端板部分は中空糸膜の端部は接着剤で封止されてお
り、この下方の端板部分の中心パイプは目止めされず、
中空状態を維持している。なお、上方の端板部におい
て、必ずしも中心パイプの端が接着剤固定部に到達して
いる必要は無く、中心パイプが図２のように途中で止ま
っていても良い。Both ends of the bundle of hollow fiber membranes are fixed with an adhesive. Normally, only the adhesive fixing portion which is the upper part when the module is vertically arranged is cut by the adhesive to fix the hollow fiber membranes. The inside is open. The end of the central pipe on the end plate surface side above the hollow fiber membrane is sealed with an adhesive or a plug-like material. Normally, the non-opened end plate portion of the hollow fiber membrane, which corresponds to the lower portion, is sealed with an adhesive at the end portion of the hollow fiber membrane, and the center pipe of the lower end plate portion is not stopped,
It remains hollow. In the upper end plate portion, the end of the central pipe does not necessarily have to reach the adhesive fixing portion, and the central pipe may stop halfway as shown in FIG.
【００１１】本発明の中空糸膜モジュールを構成する中
空糸膜としては、多孔質の中空糸膜であれば、特に限定
しないが、ポリエチレン、ポリプロピレン、ポリスルホ
ン、ポリエーテルスルホン、ポリビニルアルコール、セ
ルロースアセテート、ポリアクリロニトリル、その他の
材質を選択することができる。この中で特に好ましい中
空糸膜素材としては、アクリロニトリルを少なくとも一
成分とする重合体からなる中空糸膜が適当である。アク
リロニトリル系重合体の中でも最も好ましいものとして
は、アクリロニトリルを少なくとも５０モル％以上、好
ましくは６０モル％以上と該アクリロニトリルに対して
共重合性を有するビニル化合物一種または二種以上を５
０％以下、好ましくは０〜４０モル％とからなるアクリ
ロニトリル系共重合体である。また、これらアクリロニ
トリル系重合体二種以上、さらに他の重合体との混合物
でも良い。上記ビニル化合物としては、アクリロニトリ
ルに対して共重合性を有する公知の化合物であれば良
く、特に限定されないが、好ましい共重合成分として
は、アクリル酸、イタコン酸、アクリル酸メチル、メタ
クリル酸メチル、酢酸ビニル、アリルスルホン酸ソーダ
ー、ｐ−スチレンスルホン酸ソーダー等を例示すること
ができる。The hollow fiber membrane constituting the hollow fiber membrane module of the present invention is not particularly limited as long as it is a porous hollow fiber membrane, but polyethylene, polypropylene, polysulfone, polyether sulfone, polyvinyl alcohol, cellulose acetate, Polyacrylonitrile and other materials can be selected. Among these, a particularly preferable hollow fiber membrane material is a hollow fiber membrane made of a polymer containing at least one component of acrylonitrile. The most preferable acrylonitrile-based polymer is at least 50 mol% or more, preferably 60 mol% or more of acrylonitrile and one or more vinyl compounds having copolymerizability with the acrylonitrile.
It is an acrylonitrile-based copolymer composed of 0% or less, preferably 0 to 40 mol%. Also, a mixture of two or more kinds of these acrylonitrile-based polymers and a mixture with another polymer may be used. The vinyl compound may be any known compound having copolymerizability with acrylonitrile, and is not particularly limited, but preferable copolymerization components include acrylic acid, itaconic acid, methyl acrylate, methyl methacrylate, acetic acid. Examples thereof include vinyl, sodium allyl sulfonate, sodium p-styrene sulfonate, and the like.
【００１２】本発明の中空糸膜モジュールを構成する容
器外筒としては、金属、プラスチック類等の適当な材質
のものから適宜選定することができる。また、特に好ま
しくはアクリル樹脂、塩化ビニル樹脂、ポリスルホン、
変性ポリフェニレンオキサイド、ポリカーボネート樹脂
などが適当である。The outer cylinder of the container constituting the hollow fiber membrane module of the present invention can be appropriately selected from those made of appropriate materials such as metals and plastics. Further, particularly preferably, acrylic resin, vinyl chloride resin, polysulfone,
Modified polyphenylene oxide, polycarbonate resin and the like are suitable.
【００１３】中空糸膜外筒と中空糸膜モジュールの本体
は通常は図１のように一体として固定されているのが普
通であるが、Ｏリングを始めとする適当なシール材や継
ぎ手部材などを使用して組み立てられている構造であっ
ても、差支えない。The hollow fiber membrane outer cylinder and the body of the hollow fiber membrane module are usually fixed as a unit as shown in FIG. 1, but a suitable sealing material such as an O-ring or a joint member, etc. It does not matter even if the structure is assembled using.
【００１４】[0014]
実施例１ 外径４００μｍ、内径３００μｍ、平均ポアサイズ０．
０１μｍのポリアクリロニトリル多孔質中空糸膜８，０
００本からなる中空糸膜束を、外径２２ｍｍ、内径１６
ｍｍの硬質塩化ビニルパイプの回りに均等に配列させた
状態で外径１１４ｍｍ、内径１０４ｍｍの透明硬質塩化
ビニルパイプの外筒内部に挿入して、両端を接着剤で固
定した。次に、接着固定部の片端を切断し、中空糸膜の
内部孔を開孔させた後に、フランジを接着して、図１に
示す形状の、長さ１．２ｍ、中空糸膜有効長８５ｃｍの
中空糸膜モジュールを製作した。中心パイプは切断され
た端板側の端は接着剤を埋めることにより封止されてお
り、非切断端板側では該パイプは貫通されている。ま
た、該パイプには非切断端板側の中空糸膜の付け根から
３０ｍｍ、５０ｍｍ、７０ｍｍ、９０ｍｍ、の点のパイ
プ側面に、直径３ｍｍの貫通孔を円周上に均等に４点づ
つ、合計１６個の細孔を設けている。Example 1 Outer diameter 400 μm, inner diameter 300 μm, average pore size 0.
01 μm polyacrylonitrile porous hollow fiber membrane 8,0
Hollow fiber membrane bundle consisting of 00, outer diameter 22mm, inner diameter 16
mm rigid vinyl chloride pipes were evenly arranged and inserted into the outer cylinder of a transparent rigid vinyl chloride pipe having an outer diameter of 114 mm and an inner diameter of 104 mm, and both ends were fixed with an adhesive. Next, after cutting one end of the adhesive fixing portion and opening the inner hole of the hollow fiber membrane, a flange is adhered to the shape shown in FIG. 1 to have a length of 1.2 m and a hollow fiber membrane effective length of 85 cm. A hollow fiber membrane module was manufactured. The end of the central pipe on the side of the cut end plate is sealed by filling an adhesive, and the pipe is pierced on the side of the non-cut end plate. Further, in the pipe, four through holes having a diameter of 3 mm are evenly distributed on the circumference of the pipe at 30 mm, 50 mm, 70 mm, and 90 mm from the root of the hollow fiber membrane on the non-cut end plate side, and four through holes are evenly distributed on the circumference. 16 pores are provided.
【００１５】このモジュールにおいて、水道水を供給口
８から圧力 １ kg/cm2 で供給し、中空糸膜による濾過
処理を実施し、濾過液を濾過液出口１１から取り出し
た。この時、ノズル６、７およびバルブ１２は閉じられ
ている。この圧力における初期流量は毎分１０リットル
であった。In this module, tap water was supplied from the supply port 8 at a pressure of 1 kg / cm 2 to carry out a filtration treatment with a hollow fiber membrane, and the filtrate was taken out from the filtrate outlet 11. At this time, the nozzles 6 and 7 and the valve 12 are closed. The initial flow rate at this pressure was 10 liters per minute.
【００１６】次に２４時間経過後にこの濾過液の流量を
同じ圧力において測定したところ、流量は毎分４リット
ルまでに低下し、中空糸膜面は茶褐色に汚れている状態
が観察された。そこで、供給バルブ８を閉じ、エアー抜
き口６を開き、バルブ１２を調整してエアーを中心パイ
プから毎分８ノルマルリットル供給し、中空糸膜を揺ら
した。エアー供給を１５分継続した後バルブ１２を閉
じ、ドレンバルブ７を開き、中空糸膜モジュール内部の
水を排出した。次に、初期の運転状態を再度実施したと
ころ、圧力１ｋｇ／ｃｍ2 において、流量は毎分１０リ
ットルであることがわかった。また、中空糸膜の色は運
転初期と同等に白色になっていることが確認された。Next, after 24 hours, the flow rate of the filtrate was measured at the same pressure. The flow rate was reduced to 4 liters per minute, and it was observed that the hollow fiber membrane surface was stained dark brown. Therefore, the supply valve 8 was closed, the air vent port 6 was opened, and the valve 12 was adjusted to supply air at 8 normal liters per minute from the central pipe to shake the hollow fiber membrane. After continuing the air supply for 15 minutes, the valve 12 was closed, the drain valve 7 was opened, and the water inside the hollow fiber membrane module was discharged. Next, when the initial operation state was carried out again, it was found that the flow rate was 10 liters / min at a pressure of 1 kg / cm 2 . It was also confirmed that the color of the hollow fiber membrane was white, which was equivalent to that at the beginning of operation.
【００１７】[0017]
【発明の効果】本発明により、微粒子や懸濁物質を含ん
だ液体を連続濾過し、しかも定期的にエアーブローを行
なうことで中空糸膜の目詰まりを除去することが可能な
中空糸膜モジュールおよびその使用方法が提供され得
る。Industrial Applicability According to the present invention, a hollow fiber membrane module capable of removing clogging of a hollow fiber membrane by continuously filtering a liquid containing fine particles and a suspended substance and by periodically air-blowing. And methods of using the same can be provided.
【図１】本発明の中空糸膜モジュールの一例を示す断面
図である。FIG. 1 is a cross-sectional view showing an example of a hollow fiber membrane module of the present invention.
【図２】本発明の中空糸膜モジュールの一例を示す断面
図である。FIG. 2 is a sectional view showing an example of a hollow fiber membrane module of the present invention.
１：中心パイプ ２：中空糸膜 ３：開孔端板 ４：非開孔端板 ５：外筒 ６：エアー抜きノズル ７：ドレンノズル ８：原水供給ノズル ９：細孔 １０：フランジ １１：濾過水出口 １２：エアー供給口 １３：エアー入り口バルブ １４：濾過水集水部 1: Central pipe 2: Hollow fiber membrane 3: Open end plate 4: Non-open end plate 5: Outer cylinder 6: Air bleed nozzle 7: Drain nozzle 8: Raw water supply nozzle 9: Pore 10: Flange 11: Filtered water Outlet 12: Air supply port 13: Air inlet valve 14: Filtered water collecting part
Claims (7)
多数の多孔質の中空糸膜が配列された状態で外筒の中に
充填され、該パイプの少なくとも一方の端部および該中
空糸膜束の両端部が接着剤で外筒の端部に固定され、か
つ一方の該中空糸膜束の固定された端部が切断により中
空糸膜内部を開孔状態とされている中空糸膜モジュール
において、該パイプ側面の細孔が、該中空糸膜モジュー
ルの長さ方向の中心よりも一方の固定された端部側に位
置していることを特徴とする中空糸膜モジュール。1. An outer cylinder filled with a large number of porous hollow fiber membranes arranged around a central pipe having side pores, and at least one end of the pipe and the hollow fiber. A hollow fiber membrane in which both ends of the membrane bundle are fixed to the ends of the outer cylinder with an adhesive, and one of the fixed ends of the hollow fiber membrane bundle is cut to open the inside of the hollow fiber membrane. In the module, the hollow fiber membrane module is characterized in that the pores on the side surface of the pipe are located closer to one fixed end than the center of the hollow fiber membrane module in the lengthwise direction.
れ、他方では固定されていないことを特徴とする請求項
１に記載の中空糸膜モジュール。2. The hollow fiber membrane module according to claim 1, wherein the central pipe is fixed at one end of the outer cylinder and is not fixed at the other end.
が、アクリロニトリルを少なくとも一成分とする重合体
からなることを特徴とする請求項１または２に記載の中
空糸膜モジュール。3. The hollow fiber membrane module according to claim 1 or 2, wherein the hollow fiber membranes constituting the hollow fiber membrane module are made of a polymer containing at least one component of acrylonitrile.
の多孔質の中空糸膜が配列された状態で外筒の中に充填
され、該パイプの少なくとも一方の端部および該中空糸
膜束の両端部が接着剤で外筒の端部に固定され、かつ一
方の該中空糸膜束の固定された端部が切断により中空糸
膜内部を開孔状態とされていることを特徴とする中空糸
膜モジュールの使用方法において、通常は原液は外筒の
外周部の一部から中空糸膜束に供給し、中空糸膜内部に
透過濾過させる濾過操作を行ない、間欠的に原液供給を
停止して中心パイプから空気を供給して中空糸膜束を振
動させ、膜面の付着物の除去を行なったあと、再度通常
の濾過操作を実施することを特徴とする中空糸膜モジュ
ールの使用方法。4. The outer cylinder is filled with a large number of porous hollow fiber membranes arranged around a pipe having pores on the side surface, and at least one end of the pipe and the hollow fiber membranes. Both ends of the bundle are fixed to the ends of the outer cylinder with an adhesive, and one of the fixed ends of the hollow fiber membrane bundle is cut to open the inside of the hollow fiber membrane. In the method of using the hollow fiber membrane module, normally, the stock solution is supplied to the hollow fiber membrane bundle from a part of the outer peripheral portion of the outer cylinder, and a filtration operation is performed to permeate and filter the hollow fiber membrane, and the stock solution is intermittently supplied. Use of the hollow fiber membrane module characterized in that after stopping and supplying air from the central pipe to vibrate the hollow fiber membrane bundle to remove the deposits on the membrane surface, the ordinary filtration operation is performed again. Method.
が、中空糸膜モジュールの長さ方向の中心よりも一方の
固定された端部側に位置していることを特徴とする請求
項４に記載の中空糸膜モジュールの使用方法。5. The hollow on the side surface of the pipe of the hollow fiber membrane module is located closer to one fixed end than the center of the hollow fiber membrane module in the lengthwise direction. A method of using the hollow fiber membrane module according to item 1.
の一方の端部で固定され、他方の端部では固定されてい
ないことを特徴とする請求項４乃至５に記載の中空糸膜
モジュールの使用方法。6. The hollow fiber membrane module according to claim 4, wherein the center pipe of the hollow fiber membrane module is fixed at one end of the outer cylinder and is not fixed at the other end. How to use.
が、アクリロニトリルを少なくとも一成分とする重合体
からなることを特徴とする請求項４乃至６に記載の中空
糸膜モジュールの使用方法。7. The method of using a hollow fiber membrane module according to claim 4, wherein the hollow fiber membrane constituting the hollow fiber membrane module is made of a polymer containing at least one component of acrylonitrile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3257954A JP2622044B2 (en) | 1991-10-04 | 1991-10-04 | Hollow fiber membrane module and method of using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3257954A JP2622044B2 (en) | 1991-10-04 | 1991-10-04 | Hollow fiber membrane module and method of using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596136A true JPH0596136A (en) | 1993-04-20 |
| JP2622044B2 JP2622044B2 (en) | 1997-06-18 |
Family
ID=17313523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3257954A Expired - Fee Related JP2622044B2 (en) | 1991-10-04 | 1991-10-04 | Hollow fiber membrane module and method of using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2622044B2 (en) |
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| EP1180391A2 (en) * | 2000-08-18 | 2002-02-20 | SANYO ELECTRIC Co., Ltd. | Filter device |
| JP2002066266A (en) * | 2000-08-25 | 2002-03-05 | Yuasa Corp | Tubular membrane element and immersion type filtration system using the same |
| JP2002066267A (en) * | 2000-08-25 | 2002-03-05 | Yuasa Corp | Tubular membrane element and immersion type filtration system using the same |
| EP1317402A1 (en) * | 1999-09-22 | 2003-06-11 | SK Chemicals Co., Ltd. | Water treatment system using hollow fiber membrane module |
| WO2003095077A1 (en) * | 2002-05-10 | 2003-11-20 | Sfc Umwelttechnik Gmbh | Hollow-fibre membrane filtration device and use thereof for purifying waste water, in addition to membrane bioreactor |
| JP2006272336A (en) * | 1996-12-20 | 2006-10-12 | Us Filter Wastewater Group Inc | Scouring method |
| US7160463B2 (en) | 2002-06-18 | 2007-01-09 | U.S. Filter Wastewater Group, Inc. | Methods of minimizing the effect of integrity loss in hollow fibre membrane modules |
| US7198721B2 (en) | 1998-10-09 | 2007-04-03 | Zenon Technology Partnership | Cyclic aeration system for submerged membrane modules |
| JP2008502465A (en) * | 2004-06-17 | 2008-01-31 | コッホ・メンブラーネ・システムズ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Membrane module for immersion work |
| KR100813890B1 (en) * | 2004-02-02 | 2008-03-18 | 주식회사 코오롱 | A submerged hollow fiber membrane module |
| US7361274B2 (en) | 2002-08-21 | 2008-04-22 | Siemens Water Technologies Corp. | Aeration method |
| US8075776B2 (en) | 1995-08-11 | 2011-12-13 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US8840783B2 (en) | 2007-05-29 | 2014-09-23 | Evoqua Water Technologies Llc | Water treatment membrane cleaning with pulsed airlift pump |
| US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
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| WO2020194820A1 (en) * | 2019-03-27 | 2020-10-01 | 栗田工業株式会社 | Hollow fiber membrane module and method for cleansing same |
| KR20240009538A (en) | 2016-03-29 | 2024-01-22 | 쿠리타 고교 가부시키가이샤 | Method for washing hollow fiber membrane module and hollow fiber membrane filtration device |
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| JP2006272336A (en) * | 1996-12-20 | 2006-10-12 | Us Filter Wastewater Group Inc | Scouring method |
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| EP1317402A4 (en) * | 1999-09-22 | 2004-04-07 | Sk Chemicals Co Ltd | Water treatment system using hollow fiber membrane module |
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| JP2002066267A (en) * | 2000-08-25 | 2002-03-05 | Yuasa Corp | Tubular membrane element and immersion type filtration system using the same |
| JP2002066266A (en) * | 2000-08-25 | 2002-03-05 | Yuasa Corp | Tubular membrane element and immersion type filtration system using the same |
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|---|---|
| JP2622044B2 (en) | 1997-06-18 |
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