JP2525033B2 - Membrane separation device - Google Patents
Membrane separation deviceInfo
- Publication number
- JP2525033B2 JP2525033B2 JP63094983A JP9498388A JP2525033B2 JP 2525033 B2 JP2525033 B2 JP 2525033B2 JP 63094983 A JP63094983 A JP 63094983A JP 9498388 A JP9498388 A JP 9498388A JP 2525033 B2 JP2525033 B2 JP 2525033B2
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- JP
- Japan
- Prior art keywords
- membrane
- separation device
- container
- stock solution
- water
- 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
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- Separation Using Semi-Permeable Membranes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、純水生産プロセス、、超純水生産プロセ
ス、医薬品製造プロセス、発酵・醸造プロセス、食品製
造プロセス等において用いられる逆浸透膜モジュール、
限外濾過膜モジュール、精密濾過膜モジュール等の膜分
離装置で、詳しくは、容器内に、その容器内を原液室と
処理液室とに仕切って原液室に供給された原液中の透過
対象を選択透過させるための透過膜を設けてある膜分離
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a reverse osmosis membrane module used in a pure water production process, an ultrapure water production process, a pharmaceutical production process, a fermentation / brewing process, a food production process and the like. ,
A membrane separation device such as an ultrafiltration membrane module or a microfiltration membrane module. Specifically, in a container, the container is partitioned into a stock solution chamber and a processing solution chamber, and the permeation target in the stock solution supplied to the stock solution chamber is selected. The present invention relates to a membrane separation device provided with a permeable membrane for selective permeation.
この種の膜分離装置は、透過膜の形式によって、スパ
イラル型、ホロファイア型、チューブ型、平面膜型に分
離されるが、いずれの形式のものであっても、透過膜の
支持部材への取付けや支持部材の容器への接合のために
液が停滞し易い箇所が容器内に存在する。ところが、そ
のような液の停滞箇所は、生菌の温床となる。そして、
生菌が膜分離装置内で繁殖すると、膜による分離性能が
低下し、特に限外濾過や精密濾過にあっては、処理水中
に生菌が多く含まれることになる。This type of membrane separation device is separated into a spiral type, a holofire type, a tube type, and a flat membrane type depending on the type of the permeable membrane. There are locations in the container where the liquid is likely to stagnate due to attachment and joining of the support member to the container. However, such a stagnant portion of the liquid becomes a hotbed for live bacteria. And
When viable bacteria propagate in the membrane separation device, the separation performance by the membrane deteriorates, and particularly in ultrafiltration and microfiltration, the treated water contains a large amount of viable bacteria.
従って、膜分離装置においては内部を殺菌する必要が
ある。Therefore, it is necessary to sterilize the inside of the membrane separation device.
その殺菌手段として、従来では、過酸化水素等の薬品
や熱水を膜分離装置に流す手段が採用されていた。As the sterilization means, conventionally, a means for flowing a chemical such as hydrogen peroxide or hot water to the membrane separation device has been adopted.
しかし、薬品や熱水による殺菌にあたっては、膜分離
装置の運転を停止する必要があるという欠点があるのみ
ならず、次のような欠点がある。However, in sterilization with chemicals or hot water, there is not only the drawback that the operation of the membrane separation device must be stopped, but also the following drawbacks.
つまり、熱水による殺菌の場合には、殺菌後、徐冷す
る必要があって膜分離装置の運転の再開が遅れる。ま
た、薬品による殺菌の場合には、薬品を膜分離装置から
流し出すのにかなりの時間と洗浄水が必要である。That is, in the case of sterilization with hot water, it is necessary to gradually cool after sterilization, which delays the restart of the operation of the membrane separation device. Further, in the case of sterilization with a chemical, it takes a considerable amount of time and washing water to flush the chemical from the membrane separation device.
そのうえ、両者ともに言えるのであるが、停滞箇所が
本来的に液の流動が生じにくいため、熱水や薬品をその
停滞箇所に流すこと自体が非常にむずかしく、殺菌に非
常な手間と時間を要する割りには信頼生が低いのてあ
る。Moreover, it can be said that both of them can be said, but since the liquid at the stagnation point is inherently hard to flow, it is very difficult to flow hot water or chemicals to the stagnation point itself, and sterilization requires a lot of time and labor. The credibility is low.
本発明の目的は、薬品や熱水による殺菌を不要化する
点にある。An object of the present invention is to eliminate the need for sterilization with chemicals or hot water.
本発明の膜分離装置は、前記原液室内の前記透過膜の
支持部材の表面に、金属イオンが結合したイオン交換体
を、原液に接する状態で配置してある点に特徴を有す
る。The membrane separation device of the present invention is characterized in that an ion exchanger to which metal ions are bound is placed in contact with the stock solution on the surface of the support member for the permeable membrane in the stock solution chamber.
銀や動、錫、亜鉛等の金属イオンが結合したイオン交
換体には、菌との接触によってその接触した菌を死滅あ
るいはその増殖を抑制する抗菌作用があることが今日で
は広く知られており、またイオン交換体に結合する金属
イオンは、それよりもイオン化傾向の小なるイオンでな
ければ交換せずに、安定していることがイオン交換体の
技術分野では周知の事実として知られている。It is widely known today that ion exchangers to which metal ions such as silver, metal, tin, and zinc are bound have an antibacterial action that kills the bacteria in contact with them or suppresses their growth. It is known in the technical field of ion exchangers that the metal ion bound to the ion exchanger is stable without being exchanged unless it has an ionization tendency smaller than that. .
他方、純水や超純水はもちろんのこと、飲料水のよう
にイオン含有量が多い水であっても、イオン交換体に結
合させた金属イオンよりもイオン化傾向の小なるイオン
を含んでいることは非常に少なく、また、イオン交換体
に結合させる金属イオンとしては、銀等、イオン化傾向
の非常に小さなものがある。On the other hand, not only pure water and ultrapure water, but also water with a high ion content, such as drinking water, contains ions having a smaller ionization tendency than the metal ions bound to the ion exchanger. This is very rare, and as the metal ion to be bound to the ion exchanger, there are those having a very small ionization tendency such as silver.
従って、原液中の菌は、原液室内に設けたイオン交換
体に接触することにより、死滅したり増殖が抑制された
りする。Therefore, the bacteria in the stock solution are killed or suppressed in growth by coming into contact with the ion exchanger provided in the stock solution chamber.
従って、金属イオンが結合したイオン交換体を原液室
内の透過膜の支持部材の表面に、原液に接する状態で配
置する結果、本発明によれば、液が停滞しがちな透過膜
支持部材の表面付近において増殖する菌を、その透過膜
支持部材と接触させることにより死滅させるため、殺菌
の効率が良くなるとともに、前記液停滞箇所が菌の温床
となることが防止され、その結果、膜分離装置内での生
菌の繁殖を抑えて膜による分離性能を高く維持し易くな
る。Therefore, as a result of disposing the ion exchanger to which the metal ions are bound on the surface of the support member of the permeable membrane in the stock solution chamber in a state of being in contact with the stock solution, according to the present invention, the surface of the permeable membrane support member in which the solution tends to be stagnant. Bacteria that grow in the vicinity are killed by bringing them into contact with the permeable membrane supporting member, so that the efficiency of sterilization is improved and the liquid stagnation site is prevented from becoming a hotbed of bacteria, and as a result, a membrane separation device is provided. It becomes easy to maintain the high separation performance of the membrane by suppressing the growth of live bacteria inside.
〔実施例〕 次に本発明の実施例を示す。[Example] Next, an example of the present invention will be described.
実施例１ 純水や超純水を脱イオン化するスパイラル型の逆浸透
膜装置であって、第１図に示すように、容器（１）内
に、その容器（１）内を原液室（1A）と処理液室（1B）
とに仕切って原液室（1A）に供給された原液（イオンを
含む純水や超純水）中の透過対象（水）を処理質（1B）
に選択透過させるための逆浸透膜（２）をスパイラル状
に配設し、原液室（1A）内および処理室（1B）内のそれ
ぞれに、前記逆浸透膜（２）をスパイラル状に保持する
ためのスペーサ（３）（支持部材の一例）を設けて構成
されている。（４）は透過水集水管である。Example 1 A spiral-type reverse osmosis membrane device for deionizing pure water or ultrapure water, wherein, as shown in FIG. 1, the inside of the container (1) is a stock solution chamber (1A). ) And processing liquid chamber (1B)
Treatment target (1B) for the permeation target (water) in the undiluted solution (pure water or ultrapure water containing ions) that is partitioned into
A reverse osmosis membrane (2) for selective permeation is arranged in a spiral shape, and the reverse osmosis membrane (2) is spirally held in each of the stock solution chamber (1A) and the processing chamber (1B). A spacer (3) (an example of a support member) for the purpose is provided. (4) is a permeate water collecting pipe.
前記容器（１）およびスペーサ（３）は、銀や銅、亜
鉛等の金属イオンが結合したイオン交換体を含有した樹
脂から構成されている。The container (1) and the spacer (3) are made of a resin containing an ion exchanger to which metal ions such as silver, copper and zinc are bound.
前記イオン交換体は、天然ゼオライト、合成ゼオライ
ト、強酸性や弱酸性のカチオン交換樹脂である。The ion exchanger is a natural zeolite, a synthetic zeolite, or a strongly acidic or weakly acidic cation exchange resin.
そして、前記のよな金属イオンが結合したイオン交換
体には、それに菌が接触することにより、その菌を死滅
あるいは増殖を抑制するといった抗菌作用があることが
判明している。It has been found that the above-mentioned ion exchanger to which a metal ion is bound has an antibacterial action such that when the bacterium comes into contact with the ion exchanger, the bacterium is killed or growth is suppressed.
従って、樹脂製の容器（１）の内面およびスペーサ
（１）の表面は、前記のイオン交換体が分散しているこ
とで抗菌性を持つことになり、そのため、容器（１）と
スペーサ（３）との接合部付近やスペーサ（３）の付近
に生菌の増殖を促す原水や処理水の停滞部が生じていて
も、その生菌は容器（１）やスペーサ（３）に接触する
ことで死滅あるいは増殖抑制され、結果として、容器１
（）内の全体に生菌か介在しなくなるのである。Therefore, the inner surface of the resin-made container (1) and the surface of the spacer (1) have antibacterial properties due to the dispersion of the ion exchanger, and therefore the container (1) and the spacer (3). ) Even if there is a stagnant part of raw water or treated water that promotes the growth of viable bacteria near the joint with (1) and the spacer (3), the viable bacteria must contact the container (1) and spacer (3). Are killed or suppressed in growth by the
There is no viable bacterium in the whole of the parentheses.
実施例２ 第２図に示すように、上下姿勢の筒状容器（１）内
に、上下姿勢の多数の中空糸（２）を配設し、前記中空
糸（２）の上下両端をそれぞれ、筒状容器（１）の上下
の端部開口を閉塞する状態に取付けた蓋状の支持部材
（３）に貫通させて取付け、前記筒状容器（１）の下端
部に、前菊支持部材（３）のうちの下端側のものとで中
空糸（２）内に原水を分配供給する分配室（５）を形成
するヘッダ部材（６）を連設し、前記筒状容器（１）の
上端部に、前記支持部材（３）のうちの上端側のものと
で中空糸（２）からのブロー水を集合排出する集合室
（７）を形成するヘッダ部材（８）を連設し、中空糸
（２）内を原液室（1A）に、筒状容器（１）内の中空糸
（２）外周部を処理液室（1B）とする状態に構成された
限外濾過用や精密濾過用のホロファイバ型の膜分離装置
において、前記筒状容器（１）および上下の支持部材
（３）を、銀、銅、亜鉛等の金属イオンが結合したイオ
ン交換体を含有した樹脂から構成する。（４′）は透過
水取出口である。なお、前記中空糸（２）が濾過膜であ
って、限外濾過用のものでは、原外濾過膜が、精密濾過
用のものでは精密濾過膜が夫々、用いられる。Example 2 As shown in FIG. 2, a large number of hollow fibers (2) having a vertical posture are arranged in a cylindrical container (1) having a vertical posture, and the upper and lower ends of the hollow fiber (2) are respectively placed at the upper and lower ends. The cylindrical container (1) is attached by penetrating through a lid-shaped support member (3) mounted so as to close the upper and lower end openings of the cylindrical container (1). A header member (6) forming a distribution chamber (5) for distributing and supplying raw water into the hollow fiber (2) together with the lower end of 3) is connected to the upper end of the cylindrical container (1). A header member (8) forming a collecting chamber (7) for collecting and discharging blow water from the hollow fiber (2) is connected to the upper part of the supporting member (3), Ultrafiltration or precision filtration configured such that the inside of the yarn (2) is the stock solution chamber (1A) and the outer peripheral portion of the hollow fiber (2) in the tubular container (1) is the treatment liquid chamber (1B). In a hollow fiber type membrane separator for use in a container, the cylindrical container (1) and the upper and lower support members (3) are made of a resin containing an ion exchanger to which metal ions such as silver, copper and zinc are bound. . (4 ') is a permeated water outlet. If the hollow fiber (2) is a filtration membrane for ultrafiltration, an ultrafiltration membrane is used, and if it is for microfiltration, a microfiltration membrane is used.
前記ホロファイバー型の膜分離装置にあっては、中空
糸（２）の支持部材（３）への取付部において水が停滞
して生菌の増殖が発生し易いのであるが、上記の構成に
よれば、支持部材（３）が抗菌性を有するために、殺菌
および菌増殖の抑制を行なわれる。In the above-mentioned hollow fiber type membrane separation device, water stagnates at the attachment part of the hollow fiber (2) to the support member (3), and the growth of viable bacteria easily occurs. According to this, since the support member (3) has antibacterial properties, sterilization and suppression of bacterial growth are performed.
次に金属イオンが結合したイオン交換体の抗菌作用を
確認するために本発明者が行なった実験例を示す。Next, an example of an experiment conducted by the present inventor to confirm the antibacterial action of the ion exchanger to which metal ions are bound will be shown.
実験例 天然ゼオライトに銀イオンおよび亜鉛イオンを1:3の
比率で2.5〜３％付加した粒径が１〜5mmの粒状体、合成
ゼオライトに銀イオンおよび亜鉛イオン１を1:3の比率
で2.5〜３％付加したものを１〜２μｍに粉砕し、その
粉砕物をポリエチレン樹脂中に重量比で20％分散させて
2mm径、3mm軸長程度の円柱状に形成した粒状体、Na型強
酸性カチオン交換樹脂にAgNo3を50g/の割合でイオン
交換させた粒が0.3〜1.2mmの粒状体を用意し、第３図に
示すように、それら各粒状体のそれぞれを空容積が7.7
のイオン交換樹脂充填用のFRPタンク（９）に５充
填して３種類の供試体（Ａ），（Ｂ），（Ｃ）を作成す
る。そして、各供試体（Ａ），（Ｂ），（Ｃ）に、水温
20℃、生菌数20個/cc以上を含む脱イオン水を各種の流
速で粒状層（10）を通過するように供給パイプ（11）か
ら供給し、粒状体層（10）を通過した水を取出パイプ
（12）から取出してその取出水中の生菌数を調べた。な
お、菌は、シュードモナス（Psevdomonas）である。結
果を第４図に示す。第４図は原水の供給流速、つまり、
原水が粒状体に接して処理時間と生菌数との関係を示し
ている。Experimental example Granular particles with a particle size of 1 to 5 mm obtained by adding 2.5 to 3% of silver ion and zinc ion to natural zeolite at a ratio of 1: 3, and silver ion and zinc ion 1 to synthetic zeolite at a ratio of 1: 3 to 2.5. Add ~ 3% and crush it to 1-2 μm, and disperse the crushed product in polyethylene resin by 20% by weight.
2mm diameter, 3mm axial length about the cylindrical formed granular body, Na-type strongly acidic cation exchange resin ion exchange AgNo 3 at a rate of 50g / granules 0.3 ~ 1.2mm granular particles prepared, As shown in Fig. 3, each of the granules has an empty volume of 7.7.
5 of the FRP tank (9) for filling the ion exchange resin is prepared to prepare three kinds of specimens (A), (B) and (C). The water temperature is then applied to each of the specimens (A), (B), (C)
Deionized water containing 20 viable cells / cc or more at 20 ° C is supplied from a supply pipe (11) at various flow rates so as to pass through the granular layer (10), and water that has passed through the granular layer (10). It was taken out from the take-out pipe (12) and the number of viable bacteria in the taken-out water was examined. The bacterium is Psevdomonas. Results are shown in FIG. Figure 4 shows the flow velocity of raw water, that is,
The raw water is in contact with the granular material to show the relationship between the treatment time and the viable cell count.
実験の結果、（Ａ），（ｂ），（Ｃ）いずれにおいて
も、抗菌作用が認められ、金属イオンが結合したイオン
交換体は、膜分離装置内の殺菌に有用であるか判明し
た。As a result of the experiment, an antibacterial action was observed in any of (A), (b), and (C), and it was clarified that the ion exchanger having metal ions bound thereto is useful for sterilization in the membrane separation device.
また、菌のイオン交換体との接触機会が多いほど抗菌
効果が高いため、実施するにあたっては、樹脂中に含有
されるイオン交換体の量を多くする方が望ましいことが
判明した。Further, it has been found that it is preferable to increase the amount of the ion exchanger contained in the resin when carrying out the method, because the antibacterial effect is higher as the chance of contact of the bacteria with the ion exchanger is higher.
以下、本発明の別実施例を示す。 Another embodiment of the present invention will be described below.
［１］本発明は、チューブラ型、平面膜型の膜分離装置
にも適用できる。[1] The present invention can also be applied to tubular type and planar membrane type membrane separators.
［２］上記実施例では、容器（１）の全体および支持部
材（３）の全体を、金属イオンが結合したイオン交換体
を含有した樹脂から構成したが、容器（１）の内面や支
持部材（３）の表面のみを前記樹脂から構成しても良
い。つまり、普通の材料からなる容器（１）の内面や支
持部材（３）の外面に前記の樹脂でコーティングして実
施しても良い。[2] In the above embodiment, the whole container (1) and the whole supporting member (3) were made of a resin containing an ion exchanger to which metal ions were bound. Only the surface of (3) may be composed of the resin. That is, the inner surface of the container (1) and the outer surface of the support member (3) made of a normal material may be coated with the above resin.
［３］上記実施例では、イオン交換体を、容器（１）の
内面や支持部材（３）の外面に配置させたが、イオン交
換体は、透過膜（２）の表面に分散させる、あるいは、
容器（１）の内面および支持部材（３）の表面以外の膜
分離装置の接液面に配置させても良く、また、抗菌剤と
して単独に容器（１）内に設けても良い。そし設置手段
としては、イオン交換体自体を粒状として容器（１）内
に多数、投入する手段や、イオン交換体の粉砕物を分散
させた粒状の樹脂製品として容器（１）内に多数、投入
する手段を挙げることができる。[3] In the above embodiment, the ion exchanger was placed on the inner surface of the container (1) or the outer surface of the support member (3), but the ion exchanger is dispersed on the surface of the permeable membrane (2), or ,
It may be disposed on the liquid contact surface of the membrane separation device other than the inner surface of the container (1) and the surface of the support member (3), or may be provided as an antibacterial agent alone in the container (1). As the installation means, a large number of particles of the ion exchanger itself are placed in the container (1), or a large number of granular resin products in which pulverized products of the ion exchanger are dispersed are placed in the container (1). The means for doing so can be mentioned.
第１図は本発明の実施例１を示す断面図、第２図は本発
明の実施例２を示す断面図であり、第３図は実験装置の
断面図、第４図は実験結果を示すグラフである。 （１）……容器、（1A）……原液室、（1B）……処理液
室、（２）……透過膜。FIG. 1 is a sectional view showing a first embodiment of the present invention, FIG. 2 is a sectional view showing a second embodiment of the present invention, FIG. 3 is a sectional view of an experimental apparatus, and FIG. 4 shows experimental results. It is a graph. (1) ... Container, (1A) ... Stock solution chamber, (1B) ... Processing solution chamber, (2) ... Permeable membrane.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 益田 光信 京都府京都市南区久世殿城町600番地の １ 株式会社タクマ京都工場内 (72)発明者 白石 雅範 京都府京都市南区久世殿城町600番地の １ 株式会社タクマ京都工場内 (72)発明者 松元 信也 大阪府三島郡島本町若山台１―１―１ サントリー株式会社研究センター内 (56)参考文献 実開 昭60−124603（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsunobu Masuda 1 at 600, Kuze-Denjo-cho, Minami-ku, Kyoto-shi, Kyoto Prefecture 1. Takuma Kyoto Factory (72) Inventor Masanori Shiraishi 600, Kuse-Denjo-cho, Minami-ku, Kyoto-shi, Kyoto Address 1 Takuma Corporation, Kyoto Plant (72) Inventor Shinya Matsumoto 1-1-1 Wakayamadai, Shimamoto-cho, Mishima-gun, Osaka Suntory Co., Ltd. Research Center (56) Bibliography Sho 60-124603 (JP, U )
Claims (1)
室（1A）と処理液室（1B）とに仕切って原液室（1A）に
供給された原液中の透過対象を選択透過させるための透
過膜（２）を設けてある膜分離装置であって、前記原液
室（1A）内の前記透過膜（２）の支持部材（３）の表面
に、金属イオンが結合したイオン交換体を、原液に接す
る状態で配置してある膜分離装置。1. A container (1) is divided into a stock solution chamber (1A) and a processing solution chamber (1B) into a stock solution supplied to the stock solution chamber (1A). A membrane separation device provided with a permeable membrane (2) for selective permeation, wherein metal ions are bound to the surface of a support member (3) of the permeable membrane (2) in the stock solution chamber (1A). A membrane separation device in which an ion exchanger is placed in contact with the stock solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63094983A JP2525033B2 (en) | 1988-04-18 | 1988-04-18 | Membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63094983A JP2525033B2 (en) | 1988-04-18 | 1988-04-18 | Membrane separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01266807A JPH01266807A (en) | 1989-10-24 |
| JP2525033B2 true JP2525033B2 (en) | 1996-08-14 |
Family
ID=14125133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63094983A Expired - Lifetime JP2525033B2 (en) | 1988-04-18 | 1988-04-18 | Membrane separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525033B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001340734A (en) * | 2000-06-01 | 2001-12-11 | Hour Seishi Kk | Spacer used for separating membrane supporting body and separating membrane in lamination |
| GR1008677B (en) * | 2013-07-18 | 2016-02-03 | Δελτα Ανωνυμη Βιομηχανικη Και Εμπορικη Εταιρια Τροφιμων, | System of the production of multi-strained yogurt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60124603U (en) * | 1984-02-02 | 1985-08-22 | 三菱レイヨン株式会社 | Simple water purifier module |
-
1988
- 1988-04-18 JP JP63094983A patent/JP2525033B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01266807A (en) | 1989-10-24 |
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