JPH10328659A - Sterilization process for hollow fiber membrane water purifier and hollow fiber membrane water purifier with antibacterial function - Google Patents
Sterilization process for hollow fiber membrane water purifier and hollow fiber membrane water purifier with antibacterial functionInfo
- Publication number
- JPH10328659A JPH10328659A JP16047097A JP16047097A JPH10328659A JP H10328659 A JPH10328659 A JP H10328659A JP 16047097 A JP16047097 A JP 16047097A JP 16047097 A JP16047097 A JP 16047097A JP H10328659 A JPH10328659 A JP H10328659A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- water
- water purifier
- waterway
- 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.)
- Pending
Links
Landscapes
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、中空糸膜で水を
濾過する浄水器の殺菌方法、及び抗菌機能を有する中空
糸膜浄水器に属する。この殺菌方法は、家庭用浄水器の
菌繁殖防止及び処理特性維持に役立つ。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for sterilizing a water purifier for filtering water with a hollow fiber membrane, and a hollow fiber membrane water purifier having an antibacterial function. This sterilization method is useful for preventing the growth of bacteria and maintaining the treatment characteristics of the domestic water purifier.
【０００２】[0002]
【従来の技術】家庭用の中空糸膜浄水器の濾過部は、図
４に示すようにカートリッジＣの注型部Ｄに中空糸膜Ｅ
が固定され、その中空糸膜Ｅの原水供給側に活性炭Ｆが
収納された構造を有している。濾過機構は、全量濾過方
式により注型部Ｄの反対側から注水し、活性炭Ｆにて脱
塩素及び消臭した後、中空糸膜Ｅによって微粒子及び混
入物などを除去し浄水を得るものである。2. Description of the Related Art As shown in FIG. 4, a hollow fiber membrane E is provided in a casting part D of a cartridge C as a filtration part of a domestic hollow fiber membrane water purifier.
Is fixed, and the hollow fiber membrane E has a structure in which activated carbon F is stored on the raw water supply side. The filtration mechanism is a method of injecting water from the opposite side of the casting part D by a total filtration method, dechlorinating and deodorizing with activated carbon F, and removing fine particles and contaminants with the hollow fiber membrane E to obtain purified water. .
【０００３】[0003]
【発明が解決しようとする課題】しかし、カートリッジ
Ｃ内は、活性炭Ｆにより脱塩素された状態にあるため、
嫌気性菌である硫酸塩還元菌等の菌が繁殖しやすい。菌
自体は中空糸膜Ｅに付着して水から分離されるものの、
臭いが浄水に残る。また、中空糸膜Ｅに活性炭Ｆが接し
ているので、中空糸膜Ｅに付着した菌を除去することが
できず、永続的に菌が残留し、不衛生である。それ故、
この発明の目的は、中空糸膜浄水器を衛生的に保ち、無
臭の浄水を得る方法を提供することにある。However, since the inside of the cartridge C is in a state of being dechlorinated by the activated carbon F,
Bacteria such as sulfate-reducing bacteria, which are anaerobic bacteria, easily grow. Although the bacteria themselves adhere to the hollow fiber membrane E and are separated from water,
The smell remains in the purified water. Moreover, since the activated carbon F is in contact with the hollow fiber membrane E, the bacteria attached to the hollow fiber membrane E cannot be removed, and the bacteria remain permanently, which is unsanitary. Therefore,
An object of the present invention is to provide a method for keeping a hollow fiber membrane water purifier sanitary and obtaining odorless purified water.
【０００４】[0004]
【課題を解決するための手段】その目的を達成するため
に、本発明は、中空糸膜で水を濾過する浄水器におい
て、その中空糸膜を塩素によって殺菌することを特徴と
する殺菌方法である。この特徴を備えることにより、中
空糸膜に菌が付着しても中空糸膜浄水器が衛生的に保た
れる。In order to achieve the object, the present invention provides a water purifier for filtering water through a hollow fiber membrane, which comprises sterilizing the hollow fiber membrane with chlorine. is there. With this feature, the hollow fiber membrane water purifier can be kept hygienic even when bacteria adhere to the hollow fiber membrane.
【０００５】本発明の殺菌方法と関連する中空糸膜浄水
器は、中空糸膜及び脱塩素剤を備えた浄水器において、
中空糸膜と脱塩素剤とを離して配置し、供給水が脱塩素
剤を通過して中空糸膜に達する第一水路の外に、脱塩素
剤を経ずに中空糸膜に達する第二水路を設けたことを特
徴とする。脱塩素剤は好ましくは活性炭である。[0005] A hollow fiber membrane water purifier related to the sterilization method of the present invention is a water purifier provided with a hollow fiber membrane and a dechlorinating agent.
The hollow fiber membrane and the dechlorinating agent are arranged apart from each other, and the supply water passes through the dechlorinating agent and reaches the hollow fiber membrane outside the first channel, and reaches the hollow fiber membrane without passing through the dechlorinating agent. A waterway is provided. The dechlorinating agent is preferably activated carbon.
【０００６】この中空糸膜浄水器によれば、通常は原水
を第一水路に通して脱塩素剤で脱塩素した後、中空糸膜
を透過させて微粒子を除去し浄水を得ることができる。
脱塩素剤が活性炭であるときは、脱塩素とともに消臭も
なされる。一方、中空糸膜の殺菌洗浄を必要とするとき
は、塩素を含む洗浄水を第二水路に通して中空糸膜に接
触させて塩素で中空糸膜の供給側を殺菌することができ
る。洗浄水の流量によっては同時に中空糸膜の供給側に
蓄積した懸濁物質を除去することもできる。洗浄水は水
道水で十分である。水道水中には微量の塩素が含まれて
いるからである。従って、水道水を原水且つ洗浄水とす
ることができる。その場合、第一水路と第二水路とは、
同一の原水供給ライン、例えば水道の蛇口に直結する配
管から分岐したものとし、分岐点にいずれかの水路を選
択できる切り替え弁を設けると良い。こうして一般家庭
で安価に簡単に且つ永続的に浄水器を利用できる。According to this hollow fiber membrane water purifier, usually, after raw water is passed through the first water channel to be dechlorinated with a dechlorinating agent, fine particles can be removed through the hollow fiber membrane to obtain purified water.
When the dechlorinating agent is activated carbon, deodorization is performed together with dechlorination. On the other hand, when it is necessary to sterilize and clean the hollow fiber membrane, the cleaning water containing chlorine can be passed through the second water channel and brought into contact with the hollow fiber membrane to sterilize the supply side of the hollow fiber membrane with chlorine. Depending on the flow rate of the washing water, it is also possible to simultaneously remove suspended substances accumulated on the supply side of the hollow fiber membrane. Tap water is sufficient for washing water. This is because tap water contains trace amounts of chlorine. Therefore, tap water can be used as raw water and cleaning water. In that case, the first waterway and the second waterway,
It is preferable to branch off from the same raw water supply line, for example, a pipe directly connected to a water tap, and to provide a switching valve at the branch point to select any one of the water paths. Thus, the water purifier can be easily and permanently used at low cost in ordinary households.
【０００７】また、中空糸膜に達した供給水が中空糸膜
を透過せずに外部に出ることのできる開閉可能な排出口
を更に設けることで、流量及び水圧の調節が容易とな
る。[0007] Further, by providing an openable discharge port through which the supply water that has reached the hollow fiber membrane can pass outside without passing through the hollow fiber membrane, the flow rate and the water pressure can be easily adjusted.
【０００８】[0008]
【発明の実施の形態】本発明の中空糸膜浄水器の実施形
態を図面とともに説明する。図１は実施形態の中空糸膜
浄水器を示す断面図、図２は図１のＡ部詳細図、図３は
図１のＢ部詳細図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the hollow fiber membrane water purifier of the present invention will be described with reference to the drawings. 1 is a cross-sectional view showing a hollow fiber membrane water purifier of an embodiment, FIG. 2 is a detailed view of a part A of FIG. 1, and FIG. 3 is a detailed view of a part B of FIG.
【０００９】浄水器１は、カートリッジ２と、カートリ
ッジ２の一端に設けられた中空糸膜注型部３と、中空糸
膜注型部３に固定された中空糸膜４と、カートリッジ２
の他端に中空糸膜４と離して収納された活性炭５とを備
える。中空糸膜４と活性炭５とは、水が通過する開口６
を有する仕切り７で仕切られている。開口６には活性炭
５側から中空糸膜４側へのみ水を一方通過させるゴム製
の逆流防止弁８が設けられている。The water purifier 1 comprises a cartridge 2, a hollow fiber membrane casting part 3 provided at one end of the cartridge 2, a hollow fiber membrane 4 fixed to the hollow fiber membrane casting part 3,
At the other end thereof, a hollow fiber membrane 4 and an activated carbon 5 housed separately. The hollow fiber membrane 4 and the activated carbon 5 are connected to an opening 6 through which water passes.
Are divided by a partition 7 having The opening 6 is provided with a rubber check valve 8 that allows water to pass through only one side from the activated carbon 5 side to the hollow fiber membrane 4 side.
【００１０】この浄水器を家庭で水道水の浄化に利用す
る場合、水道水は、原水供給ライン９から活性炭５収納
部分に連結する第一配管１０、又は活性炭５収納部分を
経ずに中空糸膜４ゾーンに連結する第二配管１１を通っ
てカートリッジ２内に入る。第一配管１０と第二配管１
１の分岐点には三方弁１２が配されて両配管のいずれか
にのみ水道水が流れるようにされている。第二配管１１
とカートリッジ２の中空糸膜４ゾーンとの連結部にもゴ
ム製の逆流防止弁１３が設けられている。一方、この逆
流防止弁１３と対角位置に、中空糸膜４ゾーンに流入し
た水が中空糸膜４を透過せずに排出できるように排出口
１４が設けられている。排出口１４には、内側に向かっ
てスプリングが付勢するスプリング弁１５が設けられて
いる。When this water purifier is used for purifying tap water at home, the tap water is supplied to the first pipe 10 connected from the raw water supply line 9 to the activated carbon 5 storage portion or the hollow fiber without passing through the activated carbon 5 storage portion. It enters the cartridge 2 through the second pipe 11 connected to the membrane 4 zone. First pipe 10 and second pipe 1
A three-way valve 12 is provided at the first branch point so that tap water flows only to one of the two pipes. Second pipe 11
A check valve 13 made of rubber is also provided at the connection between the cartridge and the hollow fiber membrane 4 zone of the cartridge 2. On the other hand, a discharge port 14 is provided at a position diagonal to the check valve 13 so that water flowing into the hollow fiber membrane 4 zone can be discharged without passing through the hollow fiber membrane 4. The outlet 14 is provided with a spring valve 15 that is biased inward by a spring.
【００１１】この中空糸膜浄水器１によれば、通常は三
方弁１２が第一配管１０側に開いている。従って、水道
の蛇口を開くと、水道水は第一配管１０を通って活性炭
５で脱塩素及び消臭された後、中空糸膜４で微粒子が除
去され浄水１６となる。スプリング弁１５はスプリング
の弾力に勝る水圧で閉じられている。一方、中空糸膜４
の殺菌洗浄を必要とするときは、三方弁１２を切り換え
るとともに水道水の流量を少なくする。水道水は第二配
管１１を通って中空糸膜４に接触した後、排出口１４よ
り排出される。そして、水道水中の塩素で中空糸膜４の
供給側が殺菌されるとともに、蓄積した懸濁物質が流水
にのって排出される。According to the hollow fiber membrane water purifier 1, the three-way valve 12 is normally open to the first pipe 10 side. Therefore, when the tap is opened, the tap water passes through the first pipe 10 and is dechlorinated and deodorized by the activated carbon 5, and then the fine particles are removed by the hollow fiber membrane 4 to become purified water 16. The spring valve 15 is closed with a water pressure exceeding the elasticity of the spring. On the other hand, the hollow fiber membrane 4
When the sterilization cleaning is required, the three-way valve 12 is switched and the flow rate of tap water is reduced. The tap water is discharged from the outlet 14 after coming into contact with the hollow fiber membrane 4 through the second pipe 11. Then, the supply side of the hollow fiber membrane 4 is sterilized by chlorine in the tap water, and the accumulated suspended substances are discharged by flowing water.
【００１２】[0012]
【実施例】硫酸塩還元菌を１００コロニー／ｍｌ含む試
験水を調整した。図１に示した浄水器１を２つ準備し、
それぞれの原水供給ライン９に試験水を供給した。一方
の浄水器は、三方弁１２を第一配管１０側に開いたまま
に固定し、浄水を５Ｌ／分で８時間採集し１６時間静置
する操作を５日間繰り返した後、２日間放置した。他方
の浄水器は、浄水を５Ｌ／ｍｉｎ．で８時間採集する間
に２時間毎に三方弁１２を切り換えるとともに試験水に
代えて水道水を第二配管１１に約５００ｍｌ／分の流量
で３分間流した。こうして間欠的に８時間採集し、１６
時間静置する操作を５日間繰り返した後、２日間放置し
た。そして、中空糸膜４の原水供給側に溜まっていた試
験水の硫酸塩還元菌のコロニー数を計数した。EXAMPLES Test water containing 100 colonies / ml of sulfate-reducing bacteria was prepared. Prepare two water purifiers 1 shown in FIG.
Test water was supplied to each raw water supply line 9. One water purifier fixed the three-way valve 12 to the first pipe 10 while keeping it open, collected water at 5 L / min for 8 hours, and allowed to stand for 16 hours for 5 days, and then left for 2 days. . The other water purifier supplies purified water at 5 L / min. During the collection for 8 hours, the three-way valve 12 was switched every two hours, and tap water was supplied to the second pipe 11 at a flow rate of about 500 ml / min for 3 minutes instead of the test water. Thus, intermittently collecting for 8 hours, 16
The operation of standing still for 5 hours was repeated for 5 days, and then left for 2 days. Then, the number of colonies of sulfate reducing bacteria in the test water accumulated on the raw water supply side of the hollow fiber membrane 4 was counted.
【００１３】その結果、三方弁１２を切り換えない浄水
器から得られた浄水は異臭が検知された。また、溜まっ
ていた試験水から硫酸塩還元菌が２×１０3コロニー／
ｍｌ検出された。しかも浄水処理能力は、通水量にして
初期の８６％に低下していた。As a result, an unpleasant odor was detected in the purified water obtained from the water purifier in which the three-way valve 12 was not switched. Sulfate-reducing bacteria were 2 × 10 3 colonies /
ml was detected. Moreover, the water purification capacity was reduced to 86% of the initial amount in terms of water flow.
【００１４】これに対して、三方弁１２を切り換えた浄
水器から得られた浄水は異臭が無く、溜まっていた試験
水に硫酸塩還元菌の繁殖は認められなかった。しかも通
水量は初期の１００％が維持された。よって、間欠的に
三方弁１２を切り換えて水道水中の塩素で中空糸膜４を
殺菌することにより、膜の汚染が抑制されることが明ら
かである。On the other hand, purified water obtained from the water purifier in which the three-way valve 12 was switched had no off-flavor, and no sulfate-reducing bacteria propagated in the accumulated test water. Moreover, the flow rate was maintained at the initial 100%. Therefore, it is clear that the contamination of the membrane is suppressed by intermittently switching the three-way valve 12 and sterilizing the hollow fiber membrane 4 with chlorine in tap water.
【００１５】[0015]
【発明の効果】本発明によれば、中空糸膜に付着した菌
や懸濁物質を水道水で殺菌洗浄することができるので、
家庭において浄水器を永続的に安価に利用することがで
きる。また、操作が簡単であるから、機械操作の苦手な
使用者でも臆することなく使用できる。According to the present invention, bacteria and suspended substances adhered to the hollow fiber membrane can be sterilized and washed with tap water.
Water purifiers can be permanently and inexpensively used at home. In addition, since the operation is simple, even a user who is not good at machine operation can use it without hesitation.
【図１】 実施形態の中空糸膜浄水器を示す断面図であ
る。FIG. 1 is a sectional view showing a hollow fiber membrane water purifier of an embodiment.
【図２】 図１のＡ部詳細図である。FIG. 2 is a detailed view of a portion A in FIG.
【図３】 図２のＢ部詳細図である。FIG. 3 is a detailed view of a portion B in FIG. 2;
【図４】 従来の中空糸膜浄水器を示す断面図である。FIG. 4 is a sectional view showing a conventional hollow fiber membrane water purifier.
１ 中空糸膜浄水器 ２ カートリッジ ３ 中空糸膜注型部 ４ 中空糸膜 ５ 活性炭 ６ 開口 ７ 仕切り ８，１３ 逆流防止弁 ９ 原水供給ライン １０ 第一配管 １１ 第二配管 １２ 三方弁 １４ 排出口 １５ スプリング弁 １６ 浄水 DESCRIPTION OF SYMBOLS 1 Hollow fiber membrane water purifier 2 Cartridge 3 Hollow fiber membrane casting part 4 Hollow fiber membrane 5 Activated carbon 6 Opening 7 Partition 8,13 Backflow prevention valve 9 Raw water supply line 10 First pipe 11 Second pipe 12 Three-way valve 14 Discharge port 15 Spring valve 16 Purified water
Claims (5)
その中空糸膜を塩素によって殺菌することを特徴とする
中空糸膜浄水器の殺菌方法。1. A water purifier for filtering water through a hollow fiber membrane,
A method for sterilizing a hollow fiber membrane water purifier, comprising sterilizing the hollow fiber membrane with chlorine.
いて、 中空糸膜と脱塩素剤とを離して配置し、供給水が脱塩素
剤を通過して中空糸膜に達する第一水路の外に、脱塩素
剤を経ずに中空糸膜に達する第二水路を設けたことを特
徴とする抗菌機能を有する中空糸膜浄水器。2. A water purifier provided with a hollow fiber membrane and a dechlorinating agent, wherein the hollow fiber membrane and the dechlorinating agent are arranged separately, and the first feed water reaches the hollow fiber membrane through the dechlorinating agent. A hollow fiber membrane water purifier having an antibacterial function, wherein a second water channel that reaches the hollow fiber membrane without passing through a dechlorinating agent is provided outside the water channel.
中空糸膜浄水器。3. The hollow fiber membrane water purifier according to claim 2, wherein the dechlorinating agent is activated carbon.
ラインから分岐し、分岐点にいずれかの水路を選択でき
る切り替え弁を更に設けた請求項２又は３に記載の中空
糸膜浄水器。4. The hollow fiber according to claim 2, wherein the first water channel and the second water channel are branched from the same raw water supply line, and a switching valve for selecting one of the water channels is further provided at a branch point. Membrane water purifier.
せずに外部に出ることのできる開閉可能な排出口を更に
設けた請求項２〜４のいずれかに記載の中空糸膜浄水
器。5. The hollow fiber according to claim 2, further comprising an openable and closable outlet through which supply water reaching the hollow fiber membrane can flow out without passing through the hollow fiber membrane. Membrane water purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16047097A JPH10328659A (en) | 1997-06-02 | 1997-06-02 | Sterilization process for hollow fiber membrane water purifier and hollow fiber membrane water purifier with antibacterial function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16047097A JPH10328659A (en) | 1997-06-02 | 1997-06-02 | Sterilization process for hollow fiber membrane water purifier and hollow fiber membrane water purifier with antibacterial function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10328659A true JPH10328659A (en) | 1998-12-15 |
Family
ID=15715655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16047097A Pending JPH10328659A (en) | 1997-06-02 | 1997-06-02 | Sterilization process for hollow fiber membrane water purifier and hollow fiber membrane water purifier with antibacterial function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10328659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016019979A (en) * | 2003-10-29 | 2016-02-04 | イー・エム・デイー・ミリポア・コーポレイシヨン | Module for purifying fluid containing cleaning agent |
-
1997
- 1997-06-02 JP JP16047097A patent/JPH10328659A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016019979A (en) * | 2003-10-29 | 2016-02-04 | イー・エム・デイー・ミリポア・コーポレイシヨン | Module for purifying fluid containing cleaning agent |
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