JP3243051B2 - Membrane module - Google Patents
Membrane moduleInfo
- Publication number
- JP3243051B2 JP3243051B2 JP09117593A JP9117593A JP3243051B2 JP 3243051 B2 JP3243051 B2 JP 3243051B2 JP 09117593 A JP09117593 A JP 09117593A JP 9117593 A JP9117593 A JP 9117593A JP 3243051 B2 JP3243051 B2 JP 3243051B2
- Authority
- JP
- Japan
- Prior art keywords
- module
- water
- membrane
- membrane module
- solution
- 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
- 239000012528 membrane Substances 0.000 title claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 239000000243 solution Substances 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 230000035699 permeability Effects 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 239000003761 preservation solution Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- -1 for example Polymers 0.000 description 3
- 239000012510 hollow fiber Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 239000012498 ultrapure water Substances 0.000 description 3
- 206010007269 Carcinogenicity Diseases 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 239000003899 bactericide agent Substances 0.000 description 2
- 230000007670 carcinogenicity Effects 0.000 description 2
- 231100000260 carcinogenicity Toxicity 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、保存液を注入したモジ
ュールに関する。The present invention relates to a character that was injected save solution
About the rule .
【０００２】[0002]
【従来の技術】従来、逆浸透膜や限外濾過膜や精密濾過
膜や透析膜を用いたモジュールで、膜を乾燥させると膜
の透過性能が低下する様なモジュールでは、モジュール
内に保存液を充填して保存、輸送されていた。このモジ
ュール用保存液としては、保存中に細菌やカビの発生を
防ぐためホルマリンや次亜塩素酸ナトリウム等の殺菌剤
が添加されていたが、保存液の廃液処理や発ガン性や長
期保存時の殺菌力の低下といった問題があった。また、
過酸化水素やオゾン等の薬品を殺菌剤として利用した場
合には、膜物性の低下をもたらすといった問題がおこり
使用できなかった。更には、寒冷地や冬期での保存、輸
送においては、保存液として水を利用した場合には、モ
ジュールが凍結してしまい、膜物性の低下やモジュール
の破壊といった問題がおこるため、保存液として水にグ
リセリンやエチレングリコールやプロピレングリコール
を添加して凍結を防止する事が行なわれているが、グリ
セリン等が添加された場合には、細菌やカビの発生を防
ぐための殺菌剤として利用出来るものがなく、人工腎臓
用透析モジュール等では、ガンマー線による殺菌方法が
利用されているが、装置が高価なためコストが高くなる
という問題があった。2. Description of the Related Art Conventionally, in a module using a reverse osmosis membrane, an ultrafiltration membrane, a microfiltration membrane, or a dialysis membrane, in which the permeation performance of the membrane is reduced when the membrane is dried, the storage solution is contained in the module. Was stored and transported. As a storage solution for this module, a bactericide such as formalin or sodium hypochlorite was added to prevent the generation of bacteria and mold during storage.However, wastewater treatment of the storage solution, carcinogenicity, and long-term storage However, there was a problem that the sterilization power of the oil was reduced. Also,
When a chemical such as hydrogen peroxide or ozone was used as a germicide, it could not be used due to a problem that the physical properties of the film were deteriorated. Furthermore, in the case of storage and transportation in cold regions or winter, if water is used as a storage solution, the module will freeze, causing problems such as deterioration of membrane physical properties and destruction of the module. Although glycerin, ethylene glycol and propylene glycol are added to water to prevent freezing, when glycerin etc. is added, it can be used as a bactericide to prevent the generation of bacteria and mold. In a dialysis module for an artificial kidney, etc., a sterilization method using gamma rays is used, but there is a problem that the cost is high because the apparatus is expensive.
【０００３】[0003]
【発明が解決しようとする課題】本発明の課題は、保存
時や輸送時に細菌やカビの発生がなく、廃液処理や発ガ
ン性に問題がなく、膜物性を低下させず、かつ、寒冷時
に凍結しない様なモジュールを提供することを目的とす
るものである。SUMMARY OF THE INVENTION An object of the present invention is to prevent generation of bacteria and mold during storage and transportation, no problem in waste liquid treatment and carcinogenicity, not to decrease film physical properties, and it is an object to provide a module such as not freeze.
【０００４】[0004]
【発明を解決するための手段】本発明者らは、上記問題
を解決するためにモジュール用保存液について鋭意研究
を重ねた結果、本発明をなすに至った。すなわち、本発
明は、グリセリンと一価アルコールと水が封入されてな
る膜モジュールである。グリセリンの濃度は、２０〜８
０重量％、好ましくは、３０〜７０重量％である。濃度
が低すぎると、保存液の凍結がおこり、高すぎる場合
は、粘度が高くモジュールへの充填に時間がかかる。Means for Solving the Problems The present inventors have conducted intensive studies on a preservation solution for modules in order to solve the above problems, and as a result, have accomplished the present invention. That is, the present invention is a membrane module in which glycerin, a monohydric alcohol, and water are sealed. The concentration of glycerin is 20 to 8
0% by weight, preferably 30 to 70% by weight. If the concentration is too low, the preservation solution will freeze, and if it is too high, the viscosity will be high and it will take time to fill the module.
【０００５】本発明に用いられる一価アルコールとして
は、脂肪族アルコールが用いられ、好ましくは、メタノ
ール、エタノール、プロパノール、イソプロパノール等
である。一価アルコールの濃度は、０．１〜４０重量
％、好ましくは、０．５〜３０％である。一価アルコー
ル濃度が低すぎると、殺菌効果が少なく、濃度が高すぎ
ても殺菌効果は変わらない。As the monohydric alcohol used in the present invention, an aliphatic alcohol is used, and preferably, methanol, ethanol, propanol, isopropanol and the like are used. The concentration of the monohydric alcohol is 0.1 to 40% by weight, preferably 0.5 to 30%. If the monovalent alcohol concentration is too low, the bactericidal effect is low, and if the concentration is too high, the bactericidal effect does not change.
【０００６】本発明に使用されるモジュールの膜種とし
ては、逆浸透膜、限外濾過膜、精密濾過膜等が挙げられ
る。膜の形態としては、中空糸膜、管状膜、平膜等に使
用される。膜の素材としては、合成高分子からなるも
の、例えば、ポリエチレン、ポリプロピレン、ポリアク
リロニトリル、ポリスルホン、ポリエーテルスルホン、
ポリふっ化ビニリデン、ポリイミド、ポリエーテルイミ
ド、セルロース、ポリビニルアルコール、ポリアミド等
が使用できる。[0006] The membrane type of the module used in the present invention includes a reverse osmosis membrane, an ultrafiltration membrane and a microfiltration membrane. The form of the membrane is used for a hollow fiber membrane, a tubular membrane, a flat membrane, and the like. As the material of the membrane, those composed of synthetic polymers, for example, polyethylene, polypropylene, polyacrylonitrile, polysulfone, polyethersulfone,
Polyvinylidene fluoride, polyimide, polyetherimide, cellulose, polyvinyl alcohol, polyamide and the like can be used.
【０００７】本発明に使用される保存液は、モジュール
内にいっぱいに充填した状態でもよいし、保存液をタレ
きりにして、膜が湿潤状態にしておいてもよい。The preservation solution used in the present invention may be in a state of being completely filled in the module, or the preservation solution may be dripped to keep the membrane wet.
【０００８】[0008]
【実施例】次に実施例、及び、比較例によって本発明を
さらに詳細に説明する。なお、透水量は、２５℃の超純
水を用いモジュール平均膜差圧が１ｋｇ／ｃｍ2 のもと
で測定した。エアーリークは、原水側、濾水ともに水を
満水にした後、濾水側から１ｋｇ／ｃｍ2 の清澄圧縮空
気を送り込み、中空糸内、及び、切断面からの気泡の発
生の有無を水槽中で目視した。生菌の確認は、原水側の
保存液をサンプリングしミリポア社ウオーターテスター
ＴＯＴＡＬ ＣＯＵＮＴ（登録商標）を用いて生菌数を
数えた。初期においては、透水量測定のみを実施した。
保存後は、生菌検査、エアーリーク検査、透水量測定の
順で行なった。Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. The water permeability was measured using ultrapure water at 25 ° C. and an average membrane differential pressure of 1 kg / cm 2 . For air leak, after filling both the raw water side and the filtered water with water, 1 kg / cm 2 of clear compressed air is sent from the drained water side, and the presence or absence of air bubbles in the hollow fiber and the cut surface is checked in the water tank. Was visually observed. To check for viable bacteria, the stock solution on the raw water side was sampled, and the number of viable bacteria was counted using a water tester TOTAL COUNT (registered trademark) manufactured by Millipore. Initially, only the water permeability measurement was performed.
After storage, a live bacteria test, an air leak test, and a measurement of water permeability were performed in this order.
【０００９】[0009]
【実施例１〜３】内径０．８ｍｍ、外径１．４ｍｍのポ
リアクリロニトリル製中空糸状限外濾過膜２０００本よ
りなる直径９０ｍｍ、長さ約１１００ｍｍの円筒状モジ
ュールを作成した。このモジュールの透水量を測定した
ところ０．８３ｍ3 ／Ｈｒであった。モジュール内の水
を抜き出した後、表１に示す保存液を原水側から供給
し、原水側、濾水側ともに満水にしてすべての口に盲板
をはめ、クランプで固定した。これらのモジュールを室
温で３ケ月間放置した後、保存液を抜き、超純水で洗浄
後、能力を測定した。結果を表１に示す。Examples 1 to 3 A cylindrical module having a diameter of 90 mm and a length of about 1100 mm, comprising 2000 polyacrylonitrile hollow fiber ultrafiltration membranes having an inner diameter of 0.8 mm and an outer diameter of 1.4 mm, was prepared. The water permeability of this module was measured to be 0.83 m 3 / Hr. After draining the water from the module, the preservative solutions shown in Table 1 were supplied from the raw water side, the raw water side and the drainage side were filled with water, and blind holes were fitted in all the ports and fixed with clamps. After leaving these modules at room temperature for 3 months, the preservative solution was drained, washed with ultrapure water, and the performance was measured. Table 1 shows the results.
【００１０】[0010]
【比較例】実施例で使用したのと同じ仕様のモジュール
の透水量を測定した後、水を抜き出し、グリセリン４０
重量％、水６０重量％の保存液を原水側から供給し、原
水側、濾水側ともに満水にして、すべての口に盲板をは
め、クランプで固定した。このモジュールを室温で３ケ
月間放置した後、保存液を抜き、超純水で洗浄後、能力
を測定した。結果を表１に示す。Comparative Example After measuring the water permeability of a module having the same specifications as those used in the examples, water was extracted and glycerin 40 was extracted.
A stock solution containing 60% by weight of water and 60% by weight of water was supplied from the raw water side, the raw water side and the drainage side were filled with water, and blind holes were fitted to all the mouths and fixed with clamps. After leaving this module at room temperature for 3 months, the storage solution was drained, washed with ultrapure water, and the performance was measured. Table 1 shows the results.
【００１１】[0011]
【表１】 [Table 1]
【００１２】[0012]
【発明の効果】本発明により、室温で長期間放置してお
いても細菌やカビの繁殖がなく、モジュール性能を変化
させず、また、寒冷環境下でもモジュール性能を変化さ
せずに安定に保存することが出来た。According to the present invention, there is no growth of bacteria and mold even when left at room temperature for a long period of time, so that the module performance is not changed, and the module performance is stably stored even in a cold environment without changing the module performance. I was able to do it.
Claims (1)
ールと水が封入されていることを特徴とする膜モジュー
ル1. A glycerin and a monovalent alcohol having 1 to 3 carbon atoms.
Membrane module Lumpur and water characterized in that it is sealed
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09117593A JP3243051B2 (en) | 1993-04-19 | 1993-04-19 | Membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09117593A JP3243051B2 (en) | 1993-04-19 | 1993-04-19 | Membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06296838A JPH06296838A (en) | 1994-10-25 |
| JP3243051B2 true JP3243051B2 (en) | 2002-01-07 |
Family
ID=14019133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09117593A Expired - Lifetime JP3243051B2 (en) | 1993-04-19 | 1993-04-19 | Membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3243051B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5025041B2 (en) * | 2000-11-13 | 2012-09-12 | 日本ゴア株式会社 | Gas dissolving or degassing antistatic membrane module |
| FR2817769B1 (en) | 2000-12-08 | 2003-09-12 | Hospal Ind | APPARATUS FOR THE EXTRACORPOREAL TREATMENT OF BLOOD OR PLASMA COMPRISING A WET SEMI-PERMEABLE MEMBRANE AND METHODS OF MANUFACTURE |
| JP4961683B2 (en) * | 2004-06-22 | 2012-06-27 | 東洋紡績株式会社 | Fluid separation device and / or membrane element storage solution, fluid separation device and membrane element and storage method thereof |
| JP4863442B2 (en) * | 2005-09-01 | 2012-01-25 | 三菱レイヨン株式会社 | Separation membrane preservation solution, separation membrane module, and separation membrane preservation method |
| JP5176499B2 (en) * | 2007-11-22 | 2013-04-03 | 東洋紡株式会社 | Porous hollow fiber membrane and method for producing the same, and hollow fiber membrane module |
| JP2009241042A (en) * | 2008-03-31 | 2009-10-22 | Mitsui Eng & Shipbuild Co Ltd | Method and apparatus for refreshing membrane for preparing ballast water |
| JP2010088996A (en) * | 2008-10-07 | 2010-04-22 | Asahi Kasei Chemicals Corp | Reserved liquid for separative membrane |
| JP2011131173A (en) * | 2009-12-25 | 2011-07-07 | Sepa Sigma Inc | Flat membrane set for filtration separation, module, and method for preserving the same |
-
1993
- 1993-04-19 JP JP09117593A patent/JP3243051B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06296838A (en) | 1994-10-25 |
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