JPH1066847A - Porous filter membrane and membrane module using the same - Google Patents
Porous filter membrane and membrane module using the sameInfo
- Publication number
- JPH1066847A JPH1066847A JP22836596A JP22836596A JPH1066847A JP H1066847 A JPH1066847 A JP H1066847A JP 22836596 A JP22836596 A JP 22836596A JP 22836596 A JP22836596 A JP 22836596A JP H1066847 A JPH1066847 A JP H1066847A
- Authority
- JP
- Japan
- Prior art keywords
- porous
- membrane
- filtration membrane
- reinforcing member
- synthetic resin
- 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.)
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、多孔性濾過膜及び
該濾過膜を用いた膜モジュールに関し、更に詳しくは、
排水処理などの膜分離用途に適した多孔性濾過膜及び該
濾過膜を用いた膜モジュールに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous filtration membrane and a membrane module using the filtration membrane.
The present invention relates to a porous filtration membrane suitable for membrane separation applications such as wastewater treatment, and a membrane module using the filtration membrane.
【０００２】[0002]
【従来の技術】従来、排水処理などのフィルターとし
て、種々の多孔性濾過膜が用いられ、それらの多孔性濾
過膜は、枠体に展設して用いられている。なかでも、高
分子量ポリエチレンからなる多孔性膜は、気孔率が高
く、濾過性に優れており、しかも安価であるため、広く
用いられるようになってきている（例えば、特開平２―
２３２２４２号、特開平５―９８０６５号、特開平５―
２３９２４６号、特開平５―２４５９２３号参照）。2. Description of the Related Art Conventionally, various types of porous filtration membranes have been used as filters for wastewater treatment and the like, and these porous filtration membranes have been used by being extended on a frame. Above all, porous membranes made of high molecular weight polyethylene have been widely used because they have high porosity, excellent filtration properties, and are inexpensive.
No. 232242, JP-A-5-98065, JP-A-5-980
239246, JP-A-5-245923).
【０００３】しかしながら、このような高気孔率、薄膜
の多孔性濾過膜を用いて濾過を行う場合、特に排水処理
などのように多量の液体を濾過処理するような場合は、
濾過膜の強度が不足し、短期間のうちに濾過膜が破損し
てしまい、実用的でないという問題があった。[0003] However, when filtration is performed using such a high-porosity, thin-film porous filtration membrane, particularly when a large amount of liquid is subjected to filtration treatment such as wastewater treatment,
There is a problem that the strength of the filtration membrane is insufficient and the filtration membrane is damaged in a short period of time, which is not practical.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、かかる従来
の多孔性濾過膜の問題点を解消し、排水処理などのよう
に多量の液体を濾過処理するような場合でも、濾過膜が
破損するようなことがなく、長期間にわたって濾過処理
を安定に行うことができる耐久性に優れた多孔性濾過膜
及び該濾過膜を用いた膜モジュールを提供することを課
題とするものである。SUMMARY OF THE INVENTION The present invention solves the problems of the conventional porous filtration membrane, and breaks the filtration membrane even when a large amount of liquid is filtered as in wastewater treatment. An object of the present invention is to provide a porous filtration membrane having excellent durability, which can stably perform a filtration treatment for a long period of time, and a membrane module using the filtration membrane.
【０００５】[0005]
【課題を解決するための手段】本発明によれば、（１）
多孔性合成樹脂膜と補強部材とからなることを特徴とす
る多孔性濾過膜、（２）多孔性合成樹脂膜の気孔率が、
６０〜９０％である上記（１）記載の多孔性濾過膜、
（３）多孔性合成樹脂膜が、孔径が０．１〜２．０μｍ
の微細孔を多数有する多孔性膜である上記（１）又は
（２）記載の多孔性濾過膜、（４）多孔性合成樹脂膜
が、分子量が５×１０５ 〜７×１０６ の超高分子量
ポリエチレンからなる上記（１）〜（３）のいずれかに
記載の多孔性濾過膜、（５）多孔性合成樹脂膜の一部
に、補強部材としてフィルムを配設した上記（１）〜
（４）記載の多孔性濾過膜、（６）多孔性合成樹脂膜と
通気性補強部材とが積層されている上記（１）〜（４）
記載の多孔性濾過膜、（７）多孔性合成樹脂膜と通気性
補強部材とが、ドット状、線状又は網目状に接着されて
いる上記（６）記載の多孔性濾過膜、（８）通気性補強
部材の通気度が、０．５〜３．０ｃｃ／ｃｍ２ ／秒で
ある上記（６）又は（７）記載の多孔性濾過膜、（９）
通気性補強部材が、繊維布帛である上記（８）記載の多
孔性濾過膜、（１０）繊維布帛が、織物である上記
（９）記載の多孔性濾過膜、（１１）織物が、ポリエス
テル織物である上記（１０）記載の多孔性濾過膜、（１
２）補強部材が、孔あきフィルムである上記（８）記載
の多孔性濾過膜、（１３）穴あきフィルムが、ポリエス
テルフィルムである上記（１２）記載の多孔性濾過膜、
（１４）上記（１）〜（１３）のいずれかに記載の多孔
性濾過膜を、枠体の両面に配設したことを特徴とする膜
モジュール、（１５）枠体内に、貫通孔を有する補強用
桟を設けた上記（１４）記載の膜モジュール、（１６）
枠体内の空隙に、充填部材を充填した上記（１４）又は
（１５）記載の膜モジュール、及び（１７）充填部材
が、独立気泡を有する発泡体である上記（１６）記載の
膜モジュールが提供される。According to the present invention, (1)
A porous filtration membrane comprising a porous synthetic resin membrane and a reinforcing member, (2) a porous synthetic resin membrane having a porosity of:
The porous filtration membrane according to the above (1), which is 60 to 90%,
(3) The porous synthetic resin membrane has a pore size of 0.1 to 2.0 μm
And (4) the ultra-high molecular weight polyethylene having a molecular weight of 5 × 10 5 to 7 × 10 6, wherein the porous filtration membrane according to (1) or (2) above is a porous membrane having a large number of micropores. (5) The porous filtration membrane according to any one of (1) to (3) above, wherein (5) a film is provided as a reinforcing member on a part of the porous synthetic resin membrane.
(4) The porous filtration membrane according to (4), wherein (6) the porous synthetic resin membrane and the air-permeable reinforcing member are laminated.
(7) The porous filtration membrane according to (6), wherein the porous synthetic resin membrane and the air-permeable reinforcing member are adhered in a dot shape, a line shape, or a mesh shape. (9) The porous filtration membrane according to the above (6) or (7), wherein the air permeability of the air-permeable reinforcing member is 0.5 to 3.0 cc / cm 2 / sec.
The porous filtration membrane according to the above (8), wherein the breathable reinforcing member is a fiber cloth; and (10) the porous filtration membrane according to the above, wherein the fiber cloth is a woven fabric.
(9) the porous filtration membrane according to (10), wherein the woven fabric is a polyester woven fabric;
2) The porous filtration membrane according to the above (8), wherein the reinforcing member is a perforated film; (13) the porous filtration membrane according to the above (12), wherein the perforated film is a polyester film;
(14) A membrane module in which the porous filtration membrane according to any of (1) to (13) is disposed on both sides of a frame, and (15) a through-hole in the frame. (16) The membrane module according to (14), further comprising a reinforcing bar.
(17) The membrane module according to (14) or (15), wherein the filling member is filled in the space in the frame body, and (17) the membrane module according to (16), wherein the filling member is a foam having closed cells. Is done.
【０００６】[0006]
【発明の実施の形態】本発明において用いられる多孔性
合成樹脂膜としては、例えば、ポリテトラフルオロエチ
レン、ポリスルフォンや高分子量ポリエチレンなどから
なる種々の多孔性膜が挙げられるが、気孔率が６０〜９
０％であることが好ましい。ここで、気孔率は、出発原
料の密度（ρ０ ）と成型後のフィルム密度（ρ）とか
ら、下記の式に基づいて算出する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the porous synthetic resin membrane used in the present invention include various porous membranes made of polytetrafluoroethylene, polysulfone, high molecular weight polyethylene, etc. ~ 9
It is preferably 0%. Here, the porosity is calculated from the density (ρ0) of the starting material and the film density (ρ) after molding based on the following equation.
【０００７】[0007]
【数１】 (Equation 1)
【０００８】また、孔径が０．１〜２．０μｍの微細孔
を多数有していることが好ましい。孔径が小さすぎる
と、目詰りが起り易く十分な耐久性が得られず、大きす
ぎると、濾過性能が不良となる。Further, it is preferable to have many fine pores having a pore diameter of 0.1 to 2.0 μm. If the pore size is too small, clogging is likely to occur and sufficient durability cannot be obtained. If the pore size is too large, the filtration performance becomes poor.
【０００９】特に、分子量が５×１０５ 〜７×１０６
の超高分子量ポリエチレンからなる多孔性膜が好まし
く用いられる。分子量が高すぎると、フィルムへの成形
が困難になり、低すぎると、フィルム強度が低下して、
濾過性能に優れた高気孔率の多孔性膜が得られ難くな
る。Particularly, the molecular weight is 5 × 10 5 to 7 × 10 6
Is preferably used. If the molecular weight is too high, molding into a film becomes difficult, and if it is too low, the film strength decreases,
It becomes difficult to obtain a high porosity porous membrane having excellent filtration performance.
【００１０】また、該ポリエチレンは、少量の、好まし
くは５モル％以下のプロピレン、ブテン、ペンテン、ヘ
キサン、４―メチルペンテン―１、オクテンなどを共重
合したものでもよく、更に、少量の、例えば２５重量％
以下のポリプロピレン、ポリブチレン、エチレン―プロ
ピレンコポリマーなどを含んでいてもよい。また、該ポ
リエチレンは、安定剤、着色剤、難燃剤、帯電防止剤な
どの通常用いられる添加剤を含んでいてもよい。The polyethylene may be a copolymer of a small amount, preferably 5 mol% or less, of propylene, butene, pentene, hexane, 4-methylpentene-1, octene or the like. 25% by weight
The following polypropylene, polybutylene, ethylene-propylene copolymer and the like may be contained. In addition, the polyethylene may contain commonly used additives such as a stabilizer, a colorant, a flame retardant, and an antistatic agent.
【００１１】このような微細孔を多数有する多孔性ポリ
エチレン膜を製造するには、例えば、ポリエチレンをデ
カリン等の溶媒に溶解した溶液（濃度２〜３０重量％）
を、スリット状ダイから押し出して、ゲルフィルムを形
成し、次いでゲルフィルム中の溶媒を蒸発させた後、延
伸する方法などが用いられる。In order to produce a porous polyethylene membrane having many such micropores, for example, a solution in which polyethylene is dissolved in a solvent such as decalin (concentration of 2 to 30% by weight)
Is extruded from a slit die to form a gel film, and then the solvent in the gel film is evaporated and then stretched.
【００１２】このような超高分子量ポリエチレンからな
る多孔性膜及びその製造方法については、例えば、特開
平２―２３２２４２号公報、特開平５―９８０６５号公
報、特開平５―２３９２４６号公報などに記載されてお
り、公知である。[0012] Such a porous membrane made of ultrahigh molecular weight polyethylene and a method for producing the same are described in, for example, JP-A-2-232242, JP-A-5-98065, JP-A-5-239246, and the like. And are known.
【００１３】かかる多孔性膜は、通常、フィブリル化し
た不織布状を呈し、その目付は７〜１５ｇ／ｍ２ 程
度、通気度（ＪＩＳ１０７６―７９Ａ法に準拠して測
定）は０．２〜３．０ｃｃ／ｃｍ２ ／秒程度が好まし
い。更には、熱カレンダー加工により、フィブリル化し
た不織布状の層間強度を向上させることが、耐久性向上
の面で好ましい。Such a porous membrane usually has a fibrillated nonwoven fabric shape, a basis weight of about 7 to 15 g / m 2, and an air permeability (measured according to JIS 1076-79A method) of 0.2 to 3.0 cc. / Cm 2 / sec is preferred. Further, it is preferable to improve the interlayer strength of the fibrillated non-woven fabric by thermal calendering from the viewpoint of improving durability.
【００１４】本発明の多孔性濾過膜は、その強度を高め
るために、上記多孔性合成樹脂膜に補強部材を設けたも
のである。補強部材としては、フィルム、布帛、糸条、
シート等、種々の材質、形態のものを用いることができ
るが、本発明では、フィルム及び布帛が好ましく用いら
れる。The porous filtration membrane of the present invention is obtained by providing a reinforcing member to the above-mentioned porous synthetic resin membrane in order to increase the strength. Reinforcing members include films, fabrics, yarns,
Although various materials and forms such as sheets can be used, films and fabrics are preferably used in the present invention.
【００１５】図１及び図２は、補強部材としてフィルム
を用いた多孔性濾過膜１の例を示す斜視図であり、図１
では、多孔性合成樹脂膜２とフィルム補強部材３とが一
体に成形されている。また、図２では、多孔性合成樹脂
膜２に格子状のフィルム補強部材３を貼り合わせて、多
孔性合成樹脂膜２を補強している。これらの場合、フィ
ルム補強部材３の多孔性濾過膜全体に占める割合が、１
０〜３０％であることが好ましい。FIGS. 1 and 2 are perspective views showing an example of a porous filtration membrane 1 using a film as a reinforcing member.
Here, the porous synthetic resin film 2 and the film reinforcing member 3 are integrally formed. In FIG. 2, the porous synthetic resin film 2 is reinforced by bonding a lattice-like film reinforcing member 3 to the porous synthetic resin film 2. In these cases, the ratio of the film reinforcing member 3 to the entire porous filtration membrane is 1
Preferably it is 0 to 30%.
【００１６】更に、補強部材として、通気性のある補強
部材を使用し、多孔性合成樹脂膜と通気性補強部材とを
積層、貼り合わせた多孔性濾過膜も、本発明の好ましい
実施態様である。この場合、多孔性合成樹脂膜の多孔部
分を接着によってできるだけ塞がないようにするため
に、接着部分が全積層面積に占める割合を３０〜６０％
とするのが好ましく、特に、ドット状、線状又は網目状
に接着するのが好ましい。このように、ドット状、線
状、網目状に接着するには、所定の形状に彫刻されたグ
ラビアロールで接着剤を塗布して接着する方法、ホット
メルト接着剤を糸状、粉状に噴射して、加熱圧着する方
法などを用いることができる。A preferred embodiment of the present invention is a porous filtration membrane in which a permeable reinforcing member is used as a reinforcing member, and a porous synthetic resin membrane and a permeable reinforcing member are laminated and bonded. . In this case, in order to prevent the porous portion of the porous synthetic resin film from being closed by bonding as much as possible, the ratio of the bonded portion to the total laminated area is 30 to 60%.
It is particularly preferable to adhere in a dot shape, a line shape or a mesh shape. As described above, in order to adhere in a dot shape, a line shape, and a mesh shape, a method of applying and bonding an adhesive with a gravure roll engraved in a predetermined shape, and spraying a hot melt adhesive in a thread shape or powder shape. Then, a method such as thermocompression bonding can be used.
【００１７】通気性補強部材の通気度は、０．５〜３．
０ｃｃ／ｃｍ２ ／秒（ＪＩＳ１０７６―７９Ａ法に準
拠して測定）であることが好ましい。The air permeability of the air-permeable reinforcing member is 0.5-3.
It is preferably 0 cc / cm2 / sec (measured in accordance with JIS 1076-79A method).
【００１８】通気性補強部材としては、穴あきフィルム
又は布帛が好ましく用いられる。穴あきフィルムの場
合、穴の直径は０．１〜２．０μｍ、開口率は５０〜９
０％、フィルムの厚さは５〜１００μｍ程度が適当であ
る。特に、穴あきフィルムとしてはポリエステルフィル
ムが好ましい。As the air-permeable reinforcing member, a perforated film or cloth is preferably used. In the case of a perforated film, the hole diameter is 0.1 to 2.0 μm, and the aperture ratio is 50 to 9.
0%, and the thickness of the film is suitably about 5 to 100 μm. In particular, a polyester film is preferable as the perforated film.
【００１９】布帛としては、織物、編物、不織布等を用
いることができ、特に織物が好ましく、素材としては、
ポリエステル、ナイロン、ポリ塩化ビニルなどを適宜選
択できるが、好ましくはポリエステルである。布帛の場
合、目付は２５〜１５０ｇ／ｍ２ 程度が好ましい。As the fabric, a woven fabric, a knitted fabric, a non-woven fabric, or the like can be used, and a woven fabric is particularly preferable.
Polyester, nylon, polyvinyl chloride and the like can be appropriately selected, but polyester is preferable. In the case of a fabric, the basis weight is preferably about 25 to 150 g / m2.
【００２０】なお、補強部材として布帛を用いる場合、
キルティング加工を施したり、布帛の縦方向及び／又は
横方向に、所定の間隔を置いて、低伸度又は高モジュラ
スの糸条を挿入したり、あるいは、テープ状合成樹脂膜
を布帛に部分的に接着させておくのが好ましい。When using a cloth as the reinforcing member,
A quilting process is performed, low elongation or high modulus yarns are inserted at predetermined intervals in the longitudinal and / or lateral directions of the fabric, or a tape-like synthetic resin film is partially applied to the fabric. It is preferable that the adhesive be adhered to the substrate.
【００２１】図３は、多孔性合成樹脂膜２に、通気性補
強部材として、穴あきフィルム４を積層した多孔性濾過
膜１の例を示す斜視図であり、多孔性合成樹脂膜２と穴
あきフィルム４とは、接着剤６により線状に接着されて
いる。また、図４は、多孔性合成樹脂膜２に、通気性補
強部材として、布帛５を積層した多孔性濾過膜１の例を
示す斜視図であり、多孔性合成樹脂膜２と布帛５とは、
接着剤６によりドット状に接着されている。FIG. 3 is a perspective view showing an example of a porous filtration membrane 1 in which a perforated film 4 is laminated as a breathable reinforcing member on a porous synthetic resin membrane 2. The film 4 is linearly adhered to the perforated film 4 by an adhesive 6. FIG. 4 is a perspective view showing an example of a porous filtration membrane 1 in which a cloth 5 is laminated as a breathable reinforcing member on the porous synthetic resin membrane 2. ,
They are bonded in a dot shape by the adhesive 6.
【００２２】図５は、本発明の膜モジュールの一例を示
す斜視図、図６は、そのＡ―Ａ線矢視断面図であり、上
記本発明の多孔性濾過膜１を、枠体１１の両面に配設し
ている。１２は網体、１３はフェルト、１４は排出口で
ある。FIG. 5 is a perspective view showing an example of the membrane module of the present invention, and FIG. 6 is a cross-sectional view taken along the line AA of FIG. It is arranged on both sides. 12 is a net, 13 is felt, and 14 is an outlet.
【００２３】この膜モジュールを、複数個並べて膜分離
ユニット内に装着し、外側から排水などの処理しようと
する水を供給し、多孔性濾過膜１で濾過した後、吸引ポ
ンプ（図示せず）で吸引して、排出口１４から処理水を
排出する。A plurality of these membrane modules are arranged in a membrane separation unit, and water to be treated such as wastewater is supplied from the outside. After filtration through the porous filtration membrane 1, a suction pump (not shown) is used. To discharge the treated water from the outlet 14.
【００２４】この際、枠体１１内に、図７に示すよう
な、貫通孔１５を有する補強用桟１６を設けておくのが
好ましい。この補強用桟１６によって、多孔性濾過膜１
が保持、補強され、しかも、補強用桟１６には貫通孔１
５が設けられているので、多孔性濾過膜１で濾過された
水が枠体１１内をスムースに流れ、円滑な処理を行うこ
とができる。なお、図７において、１７は補強用桟１６
のスペース、１８は膜モジュールの排出口１４に連結さ
れる排出口である。At this time, it is preferable to provide a reinforcing bar 16 having a through hole 15 as shown in FIG. By this reinforcing bar 16, the porous filtration membrane 1 is provided.
Are held and reinforced, and the reinforcing bar 16 has a through hole 1.
Since the filter 5 is provided, the water filtered by the porous filtration membrane 1 flows smoothly in the frame 11 and smooth processing can be performed. In FIG. 7, reference numeral 17 denotes a reinforcing bar 16.
The space 18 is an outlet connected to the outlet 14 of the membrane module.
【００２５】更に、詰まりなどが生じて、膜モジュール
を交換する必要が生じた場合、膜モジュール内に多量の
水が残っていると、重くなって、膜分離ユニットから膜
モジュールを取り出すのに、多大の労力を要することに
なる。そこで、枠体１１内の空隙に、図８に示すような
充填部材１９を充填しておき、枠体内に水が残らないよ
うにするのが有効である。例えば、図７に示した補強用
桟１６のスペース１８内に充填部材１９を充填し、枠体
１１内に装着するようにすればよい。かかる充填部材１
９としては、独立気泡を有する発泡体が好ましく、例え
ば、発泡スチロールシートなどが好適に用いられる。Further, when the membrane module needs to be replaced due to clogging or the like, if a large amount of water remains in the membrane module, the membrane module becomes heavy, and the membrane module is taken out of the membrane separation unit. A lot of effort will be required. Therefore, it is effective to fill the space inside the frame 11 with a filling member 19 as shown in FIG. 8 so that water does not remain in the frame. For example, the filling member 19 may be filled in the space 18 of the reinforcing bar 16 shown in FIG. Such a filling member 1
As 9, a foam having closed cells is preferable. For example, a styrene foam sheet or the like is suitably used.
【００２６】[0026]
【発明の効果】本発明によれば、排水処理などのように
多量の液体を濾過処理するような場合でも、濾過膜が破
損するようなことがなく、長期間にわたって安定に濾過
処理を行うことができる耐久性に優れた多孔性濾過膜及
び該濾過膜を用いた膜モジュールを提供することができ
る。According to the present invention, even when a large amount of liquid is subjected to a filtration treatment such as a wastewater treatment, the filtration membrane is not damaged and the filtration treatment can be performed stably for a long period of time. The present invention can provide a porous filtration membrane having excellent durability and a membrane module using the filtration membrane.
【図１】補強部材としてフィルムを用いた本発明の多孔
性濾過膜の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of a porous filtration membrane of the present invention using a film as a reinforcing member.
【図２】補強部材としてフィルムを用いた本発明の多孔
性濾過膜の他の例を示す斜視図である。FIG. 2 is a perspective view showing another example of the porous filtration membrane of the present invention using a film as a reinforcing member.
【図３】通気性補強部材として、穴あきフィルムを積層
した本発明の多孔性濾過膜の一例を示す斜視図である。FIG. 3 is a perspective view showing an example of a porous filtration membrane of the present invention in which a perforated film is laminated as a breathable reinforcing member.
【図４】通気性補強部材として、布帛を積層した本発明
の多孔性濾過膜の一例を示す斜視図である。FIG. 4 is a perspective view showing an example of a porous filtration membrane of the present invention in which a cloth is laminated as a breathable reinforcing member.
【図５】本発明の膜モジュールの一例を示す斜視図であ
る。FIG. 5 is a perspective view showing an example of the membrane module of the present invention.
【図６】図５のＡ―Ａ線矢視断面図である。6 is a sectional view taken along line AA of FIG. 5;
【図７】本発明の膜モジュールに使用する補強用桟の一
例を示す斜視図である。FIG. 7 is a perspective view showing an example of a reinforcing bar used in the membrane module of the present invention.
【図８】本発明の膜モジュールに使用する充填部材の一
例を示す斜視図である。FIG. 8 is a perspective view showing an example of a filling member used for the membrane module of the present invention.
１ 多孔性濾過膜 ２ 多孔性合成樹脂膜 ３ フィルム補強部材 ４ 通気性補強部材（穴あきフィルム） ５ 通気性補強部材（布帛） ６ 接着剤 １１ 枠体 １２ 網体 １３ フェルト １４ 排出口 １５ 貫通孔 １６ 補強用桟 １７ 補強用桟のスペース １８ 膜モジュールの排出口に連結される排出口 １９ 充填部材 DESCRIPTION OF SYMBOLS 1 Porous filtration membrane 2 Porous synthetic resin membrane 3 Film reinforcing member 4 Air permeable reinforcing member (perforated film) 5 Air permeable reinforcing member (fabric) 6 Adhesive 11 Frame 12 Network 13 Felt 14 Outlet 15 Through hole 16 Reinforcing Bar 17 Space for Reinforcing Bar 18 Outlet Connected to Outlet of Membrane Module 19 Filling Member
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｄ 71/26 Ｂ０１Ｄ 71/26 Ｃ０２Ｆ 1/44 Ｃ０２Ｆ 1/44 Ｋ ──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B01D 71/26 B01D 71/26 C02F 1/44 C02F 1/44 K
Claims (17)
ことを特徴とする多孔性濾過膜。1. A porous filtration membrane comprising a porous synthetic resin membrane and a reinforcing member.
０％である請求項１記載の多孔性濾過膜。2. The porosity of the porous synthetic resin film is 60 to 9
The porous filtration membrane according to claim 1, which is 0%.
２．０μｍの微細孔を多数有する多孔性膜である請求項
１又は２記載の多孔性濾過膜。3. The porous synthetic resin membrane having a pore size of 0.1 to
3. The porous filtration membrane according to claim 1, which is a porous membrane having a large number of 2.0 μm micropores.
５ 〜７×１０６の超高分子量ポリエチレンからなる請
求項１〜３のいずれか１項に記載の多孔性濾過膜。4. A porous synthetic resin membrane having a molecular weight of 5 × 10
The porous filtration membrane according to any one of claims 1 to 3, comprising 5 to 7 x 106 ultrahigh molecular weight polyethylene.
してフィルムを配設した請求項１〜４のいずれか１項に
記載の多孔性濾過膜。5. The porous filtration membrane according to claim 1, wherein a film is provided as a reinforcing member on a part of the porous synthetic resin membrane.
積層されている請求項１〜４のいずれか１項に記載の多
孔性濾過膜。6. The porous filtration membrane according to claim 1, wherein a porous synthetic resin membrane and a breathable reinforcing member are laminated.
が、ドット状、線状又は網目状に接着されている請求項
６記載の多孔性濾過膜。7. The porous filtration membrane according to claim 6, wherein the porous synthetic resin membrane and the air-permeable reinforcing member are bonded in a dot shape, a linear shape or a mesh shape.
３．０ｃｃ／ｃｍ２／秒である請求項６又は７記載の多
孔性濾過膜。8. The air-permeable reinforcing member has an air permeability of 0.5 to 0.5.
The porous filtration membrane according to claim 6 or 7, wherein the filtration rate is 3.0 cc / cm2 / sec.
項８記載の多孔性濾過膜。9. The porous filtration membrane according to claim 8, wherein the air-permeable reinforcing member is a fiber cloth.
の多孔性濾過膜。10. The porous filtration membrane according to claim 9, wherein the fiber fabric is a woven fabric.
項１０記載の多孔性濾過膜。11. The porous filtration membrane according to claim 10, wherein the woven fabric is a polyester woven fabric.
ある請求項８記載の多孔性濾過膜。12. The porous filtration membrane according to claim 8, wherein the air-permeable reinforcing member is a perforated film.
ルムである請求項１２記載の多孔性濾過膜。13. The porous filtration membrane according to claim 12, wherein the perforated film is a polyester film.
の多孔性濾過膜を、枠体の両面に配設したことを特徴と
する膜モジュール。14. A membrane module, wherein the porous filtration membrane according to claim 1 is disposed on both sides of a frame.
設けた請求項１４記載の膜モジュール。15. The membrane module according to claim 14, wherein a reinforcing bar having a through hole is provided in the frame.
請求項１４又は１５記載の膜モジュール。16. The membrane module according to claim 14, wherein the space inside the frame is filled with a filling member.
である請求項１６記載の膜モジュール。17. The membrane module according to claim 16, wherein the filling member is a foam having closed cells.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22836596A JPH1066847A (en) | 1996-08-29 | 1996-08-29 | Porous filter membrane and membrane module using the same |
| KR1019980701670A KR19990044425A (en) | 1996-07-09 | 1997-07-07 | Filtration member |
| CN97190869.9A CN1197409A (en) | 1996-07-09 | 1997-07-07 | Filter member |
| EP97929539A EP0862491A1 (en) | 1996-07-09 | 1997-07-07 | A filter member |
| PCT/JP1997/002340 WO1998001219A1 (en) | 1996-07-09 | 1997-07-07 | A filter member |
| IDP972358A ID20443A (en) | 1996-07-09 | 1997-07-08 | FILTER DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22836596A JPH1066847A (en) | 1996-08-29 | 1996-08-29 | Porous filter membrane and membrane module using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1066847A true JPH1066847A (en) | 1998-03-10 |
Family
ID=16875328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22836596A Pending JPH1066847A (en) | 1996-07-09 | 1996-08-29 | Porous filter membrane and membrane module using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1066847A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010087156A1 (en) * | 2009-01-28 | 2010-08-05 | ダイキン工業株式会社 | Air-conditioning indoor unit and method for producing a filter cleaning device |
| WO2011056598A2 (en) * | 2009-10-26 | 2011-05-12 | Ikonisys, Inc. | Membrane filter system and apparatus |
| JP2013126658A (en) * | 2011-12-13 | 2013-06-27 | Pall Corp | Membrane with localized asymmetries |
| WO2015122312A1 (en) * | 2014-02-12 | 2015-08-20 | 富士フイルム株式会社 | Composite gas separation membrane, gas separation module, gas separation apparatus, gas separation method and method for producing composite gas separation membrane |
| WO2023017783A1 (en) * | 2021-08-10 | 2023-02-16 | 帝人株式会社 | Laminated film |
| WO2023017785A1 (en) * | 2021-08-10 | 2023-02-16 | 帝人株式会社 | Laminated film |
-
1996
- 1996-08-29 JP JP22836596A patent/JPH1066847A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102292602A (en) * | 2009-01-28 | 2011-12-21 | 大金工业株式会社 | Air-conditioning indoor unit and method for producing a filter cleaning device |
| WO2010087154A1 (en) * | 2009-01-28 | 2010-08-05 | ダイキン工業株式会社 | Air-conditioning indoor unit |
| JP2010197034A (en) * | 2009-01-28 | 2010-09-09 | Daikin Ind Ltd | Air-conditioning indoor unit and method of manufacturing filter cleaning device |
| WO2010087156A1 (en) * | 2009-01-28 | 2010-08-05 | ダイキン工業株式会社 | Air-conditioning indoor unit and method for producing a filter cleaning device |
| EP2392871A4 (en) * | 2009-01-28 | 2013-12-18 | Daikin Ind Ltd | Air-conditioning indoor unit and method for producing a filter cleaning device |
| EP2392871A1 (en) * | 2009-01-28 | 2011-12-07 | Daikin Industries, Ltd. | Air-conditioning indoor unit and method for producing a filter cleaning device |
| WO2011056598A2 (en) * | 2009-10-26 | 2011-05-12 | Ikonisys, Inc. | Membrane filter system and apparatus |
| WO2011056598A3 (en) * | 2009-10-26 | 2011-10-06 | Ikonisys, Inc. | Membrane filter system and apparatus |
| JP2013126658A (en) * | 2011-12-13 | 2013-06-27 | Pall Corp | Membrane with localized asymmetries |
| WO2015122312A1 (en) * | 2014-02-12 | 2015-08-20 | 富士フイルム株式会社 | Composite gas separation membrane, gas separation module, gas separation apparatus, gas separation method and method for producing composite gas separation membrane |
| JP2015150474A (en) * | 2014-02-12 | 2015-08-24 | 富士フイルム株式会社 | Gas separation composite membrane, gas separation module, gas separator, gas separation method and production method of gas separation composite membrane |
| US10226743B2 (en) | 2014-02-12 | 2019-03-12 | Fujifilm Corporation | Gas separation composite membrane, gas separation module, gas separation device, gas separation method, and method of producing gas separation composite membrane |
| WO2023017783A1 (en) * | 2021-08-10 | 2023-02-16 | 帝人株式会社 | Laminated film |
| WO2023017785A1 (en) * | 2021-08-10 | 2023-02-16 | 帝人株式会社 | Laminated film |
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