JPH1157691A - In-line type water purification facility - Google Patents
In-line type water purification facilityInfo
- Publication number
- JPH1157691A JPH1157691A JP22763697A JP22763697A JPH1157691A JP H1157691 A JPH1157691 A JP H1157691A JP 22763697 A JP22763697 A JP 22763697A JP 22763697 A JP22763697 A JP 22763697A JP H1157691 A JPH1157691 A JP H1157691A
- Authority
- JP
- Japan
- Prior art keywords
- water
- silver
- water purification
- purification facility
- chlorine
- 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.)
- Withdrawn
Links
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- Water Treatment By Sorption (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、一般家庭や飲食店、清
涼飲料水工場などに使用される浄水装置のうち、塩素を
除去する機能を持ち、配管の途中に切り込んで設置する
インライン型浄水装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-line type water purifier which has a function of removing chlorine among water purifiers used in ordinary households, restaurants, soft drink factories, etc., and is cut and installed in the middle of piping. Related to the device.
【０００２】[0002]
【従来の技術】近年、水道水の汚染の進行により、異味
異臭のもとになる塩素臭やかび臭の除去、あるいは発ガ
ン性のあるトリハロメタンの除去のために浄水器が多用
されるようになっている。一般家庭を例に取ると、蛇口
直結型やトップシンク型、あるいはアンダーシンク型な
ど蛇口に近い位置で浄水装置が使用されているが、使用
者の多くからは瞬間通水量が少ないこと、フィルターの
寿命が極めて短いことなどなどがこれら浄水装置に関す
る不満として挙げられている。そこでこれらの使用者の
不満を解決するために、浄水装置を大型化し、瞬間の通
水量や総濾過流量を大きくした浄水装置が考えられる
が、大型の浄水装置を蛇口近くの屋内に設置することは
住環境を考えた場合極めて困難である。そこで、これら
大型の浄水装置は一般に屋外に設置し、配管途中に切り
込んで使用する、いわゆるインライン型浄水装置となる
ことになる。2. Description of the Related Art In recent years, with the progress of tap water contamination, water purifiers have been frequently used to remove chlorine and mold odors, which cause unpleasant odors, or to remove trihalomethane, which has carcinogenic properties. ing. In general households, for example, water purifiers are used near the faucet, such as the faucet direct connection type, the top sink type, and the undersink type. The extremely short service life and the like are cited as dissatisfaction with these water purification devices. In order to solve these users' dissatisfaction, it is conceivable to increase the size of the water purifier and increase the instantaneous water flow and total filtration flow rate.However, install a large water purifier indoors near the faucet. Is extremely difficult considering the living environment. Therefore, these large-sized water purifiers are generally installed outdoors and cut into the middle of a pipe for use, so-called in-line type water purifiers.
【０００３】ところで、浄水装置の多くは水道水中に殺
菌浄化を目的として注入されている塩素を除去するの
で、浄水装置を通過した後の水は塩素を取り除かれて殺
菌性能が無くなる。蛇口までの配管が極めて短い蛇口直
結型、トップシンク型、アンダーシンク型などの浄水装
置では、塩素除去後の配管中の滞留水は毎朝の放流時間
を定めるなどし、この水を捨てて使用することで配管の
滞留水中で増加する細菌の処置を行ってきた。ところ
が、屋外に設置するインライン型浄水装置では、浄水装
置の設置場所から蛇口までが数メートル以上離れること
もあり、この配管中の滞留水を例えば毎朝使用者が放流
する様に取扱説明書等で規定しても、使用者が必ずしも
十分な放流を行うとは限らない。そこで、何らかの方法
で浄水装置の下流側配管の滞留水に対して制菌機能もし
くは殺菌機能を持たせる必要が生じるが、ビルなどに設
置されている上質水供給システムでは浄水装置通過後の
浄水に対して人間が感じにくい濃度の塩素を添加するこ
とで、これらの制菌性能を維持してきた。しかしなが
ら、塩素を添加するこの方法では、一度塩素を除去して
浄化した水が塩素臭で味覚を低下させる問題があり、ま
た、塩素の含まれた水を加熱して飲用する場合には、水
中に含まれる有機物と塩素が高温領域で反応し、発ガン
性のあるトリハロメタンを多く生成する可能性があるの
で、危険な水に戻る可能性がある。[0003] By the way, many water purifiers remove chlorine injected into tap water for the purpose of sterilization and purification, so that water after passing through the water purifier removes chlorine and loses sterilization performance. In water purifiers such as faucet direct connection type, top sink type and under sink type where the piping to the faucet is extremely short, the remaining water in the piping after chlorine removal is determined by setting the discharge time every morning, and this water is discarded and used As a result, the bacteria that increase in the residence water in the piping have been treated. However, in the case of an in-line type water purifier installed outdoors, the distance from the installation location of the water purifier to the faucet may be several meters or more.For example, in the instruction manual, etc. Even if it is stipulated, the user does not always release the water sufficiently. Therefore, it is necessary to provide a bacteriostatic function or a sterilizing function to the stagnant water in the downstream pipe of the water purification device by some method.However, in the high-quality water supply system installed in buildings, etc., the purified water after passing through the water purification device is required. On the other hand, these bacteriostatic properties have been maintained by adding chlorine at a concentration that is hardly felt by humans. However, in this method of adding chlorine, there is a problem that water purified by removing chlorine once reduces taste due to chlorine odor, and when drinking water by heating chlorine-containing water, The organic matter and chlorine contained in the water may react in a high-temperature region and generate a large amount of carcinogenic trihalomethane, which may return to dangerous water.
【０００４】[0004]
【発明が解決しようとする課題】そこで本発明は、イン
ライン型浄水装置において、味覚の低下を招いたり昇温
により発ガン性物質を生成する危険性のある塩素を添加
することなく、浄水装置の下流側配管の滞留水に対して
安全で効果的な制菌方法を提供することを目的とするも
のである。SUMMARY OF THE INVENTION Accordingly, the present invention provides an in-line type water purifier without adding chlorine, which may cause a decrease in taste or generate a carcinogenic substance due to a rise in temperature. It is an object of the present invention to provide a safe and effective bacteriostatic method for accumulated water in a downstream pipe.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、浄水装置の下流側配管に銀を１０μｇ／
リットル以上添加する銀添加装置を付加した浄水装置に
することとした。また、浄水装置の下流側配管に添加す
る銀の量を、１０μｇ／リットル以上１００μｇ／リッ
トル以下に制御する銀添加装置を付加した浄水装置にす
ることとした。また、浄水装置から浄水装置の下流側配
管に銀を１０μｇ／リットル以上添加する機構を備えた
浄水装置にすることとした。また、、浄水装置から浄水
装置の下流側配管に銀を１０μｇ／リットル以上１００
μｇ／リットル以下に制御した浄水装置にすることとし
た。In order to solve the above-mentioned problems, the present invention provides a method in which 10 μg / g of silver is supplied to a downstream pipe of a water purification device.
It was decided to use a water purifier equipped with a silver addition device for adding liters or more. Further, the water purification device was provided with a silver addition device for controlling the amount of silver added to the downstream pipe of the water purification device to be 10 μg / L or more and 100 μg / L or less. In addition, a water purifier equipped with a mechanism for adding silver of 10 μg / liter or more from the water purifier to the downstream pipe of the water purifier is adopted. In addition, silver of 10 μg / liter or more is supplied from the water purification device to the downstream piping of the water purification device.
It was decided to use a water purification device controlled to not more than μg / liter.
【０００６】[0006]
【作用】図２に、厚生省の指定する指定検査機関に依頼
して行った大腸菌に対する銀の殺菌性能の測定結果を示
す。図２より、銀の濃度が１０μｇ／リットル以上であ
れば２４時間を経過した滞留水に対しても十分な殺菌性
能を示すことがわかる。また、銀は古くから食器やスプ
ーンなどに使用されており、安全性が高く、味覚に与え
る影響もほとんど皆無である。長年にわたって愛用者が
多い仁丹が大量の銀をコーティングして製造されている
ことからも安全性については明らかであるが、規制の観
点から見ると、米国環境保護局（ＥＰＡ）では、水道水
中に含まれる銀濃度が第２種基準において１００μｇ／
リットル以下と規定している。望ましくは、この基準に
従うことが安全を確保する意味で有意義であると考え
る。前述のごとく銀の殺菌性能、味覚変化、安全性につ
いては問題がないので、インライン型浄水装置におい
て、インライン型浄水装置の下流側配管に銀を１０μｇ
／リットル以上添加する銀添加装置を付加もしくは浄水
装置内にそのような機構を組み込めば、インライン浄水
装置下流の配管内でも制菌効果を得ることができ、安全
で味覚の優れた浄水を提供することができる。加えて、
望ましくは、米国環境保護局（ＥＰＡ）で規定されてい
る水道水中の銀濃度１００μｇ／リットル以下の範囲で
銀濃度を制御すれば、浄水装置の安全性はより高まるこ
ととなる。FIG. 2 shows the results of a measurement of the sterilizing performance of silver against Escherichia coli, which was performed at a designated laboratory designated by the Ministry of Health and Welfare. From FIG. 2, it can be seen that if the silver concentration is 10 μg / liter or more, sufficient sterilization performance is exhibited even for staying water after 24 hours. Silver has been used for tableware and spoons for a long time, has high safety, and has almost no effect on taste. The safety is clear from the fact that Nittan, which has been a favorite for many years, is manufactured by coating a large amount of silver, but from a regulatory perspective, the United States Environmental Protection Agency (EPA) states that The contained silver concentration is 100 μg /
It is specified as liters or less. Desirably, it is considered that following this standard is meaningful in terms of ensuring safety. As described above, there is no problem in the sterilizing performance, taste change, and safety of silver.
If a silver addition device for adding water / liter or more is added or such a mechanism is incorporated in the water purification device, a bacteriostatic effect can be obtained even in the piping downstream of the in-line water purification device, and safe and excellent taste can be provided. be able to. in addition,
Desirably, if the silver concentration is controlled within the range of 100 μg / liter or less in tap water specified by the United States Environmental Protection Agency (EPA), the safety of the water purification device will be further enhanced.
【０００７】[0007]
【実施例】図１に本発明の第１の実施例の構成概要を示
し、以下第１の実施例について述べる。塩素やかび臭、
トリハロメタンなどの有害物質を含んだ１０水道水は、
先ず１浄水器を通過する。浄水器には通常活性炭や不織
布、あるいは中空糸膜などが使用されており、水中の濁
度成分や塩素などの化学物質を分解あるいは除去する。
１浄水器により浄化された１０水道水は、１浄水器の下
流側で銀溶出システムへと導かれる系とそのまま蛇口ま
で流れる系の２方向に分けられる。銀溶出システムは全
体を９制御ユニットが制御する。９制御ユニットには、
８流量計にて計測した蛇口方向へと流れる１１浄化水の
瞬時流量が与えられ、制御ユニットは４銀溶出タンクに
蓄えられた１４銀溶液の添加量を決定して７定量吐出ポ
ンプに１４銀溶液の吐出量を指令し、７定量吐出ポンプ
から１４銀溶液が浄水側に吐出されて１１浄化水中に適
度な銀を添加する。本例では、１４銀溶液の銀濃度を検
出するセンサーを付加していないので、１１浄化水中の
銀濃度は１４銀溶液の濃度を一定値とみなし、１１浄化
水の流量のみに応じた１４銀溶液の添加による制御方式
になっている。また、４銀溶出タンクには５水位検出装
置が取り付けられており、４銀溶出タンクの水位情報を
９制御ユニットに送っている。９制御ユニットは、４銀
溶出タンクの水位が一定値以下になると２電磁弁に指令
を与え、２電磁弁は自動的に弁を調整して４銀溶出タン
クに浄水を補給する。FIG. 1 shows a schematic configuration of a first embodiment of the present invention, and the first embodiment will be described below. Chlorine and musty odor,
10 tap water containing harmful substances such as trihalomethane,
First, pass through one water purifier. Activated carbon, nonwoven fabric, or hollow fiber membranes are usually used in water purifiers to decompose or remove chemical substances such as turbidity components and chlorine in water.
The 10 tap water purified by one water purifier is divided into two directions, a system guided to the silver elution system downstream of the one water purifier and a system directly flowing to the faucet. The silver elution system is totally controlled by 9 control units. 9 control units include:
The instantaneous flow rate of purified water flowing in the direction of the faucet measured by the flow meter is given, and the control unit determines the amount of the 14 silver solution stored in the 4 silver elution tank and sends the 14 silver solution to the 7 constant discharge pump. The discharge amount of the solution is commanded, and the 14 silver solution is discharged from the 7 fixed-rate discharge pump to the purified water side to add an appropriate amount of silver to the 11 purified water. In this example, since a sensor for detecting the silver concentration of the 14 silver solution is not added, the silver concentration in the 11 purified water is regarded as a constant value of the 14 silver solution, and the silver concentration in the 11 purified water is determined according to only the flow rate of the 11 purified water. It is controlled by adding a solution. Further, a 5 silver level detector is attached to the 4 silver elution tank, and the water level information of the 4 silver elution tank is sent to 9 control units. The 9 control unit gives a command to the 2 electromagnetic valves when the water level of the 4 silver elution tank falls below a certain value, and the 2 electromagnetic valves automatically adjust the valves to supply purified water to the 4 silver elution tank.
【０００８】ここで、銀溶出の仕組みを詳述する。４銀
溶出タンクの内部には微細化された固形の酸化銀と浄水
が入っている。固形の銀化合物は極めて長い時間水中に
浸漬すると水中にその飽和溶解度相当の銀を溶出するこ
とができる。しかしながら、本例では先に述べたように
４銀溶出タンクに貯えられた１４銀溶液を１１浄化水に
添加するので、使用者の使用状況によっては１４銀溶液
が短時間の間に使われ、１４銀溶液を作るための浄水が
補給されて１４銀溶液の濃度が低下することがある。本
例では、先に述べたように１４銀溶液の銀濃度を検知す
る手段を講じていないので、１４銀溶液の銀濃度を一定
とみなせることが必要である。従って、１４銀溶液の銀
濃度を比較的早い時間で安定させることが必要であり、
そのためには、飽和溶解度相当まで銀を早急に溶解する
ことが必要になる。そこで、この固形銀化合物と浄水が
入った４銀溶出タンクに超音波を与え強制的に振動させ
て、効率よく銀を溶解させる。４銀溶出タンク内の１４
銀溶液の銀濃度は酸化銀の飽和溶解度に達すると振動を
与えてもそれ以上上昇することがなく、一定の上限値濃
度で銀の濃度は安定する。従って、本例で示すシステム
においても銀濃度の安定した１４銀溶液を１１浄化水に
添加することができる。Here, the mechanism of silver elution will be described in detail. The inside of the 4 silver elution tank contains finely divided solid silver oxide and purified water. When a solid silver compound is immersed in water for an extremely long time, silver equivalent to its saturated solubility can be eluted in water. However, in this example, since the 14 silver solution stored in the 4 silver elution tank is added to the 11 purified water as described above, the 14 silver solution is used in a short time depending on the use situation of the user, Purified water to make the 14 silver solution may be replenished and reduce the concentration of the 14 silver solution. In this example, since the means for detecting the silver concentration of the 14 silver solution is not taken as described above, it is necessary that the silver concentration of the 14 silver solution can be regarded as constant. Therefore, it is necessary to stabilize the silver concentration of the 14 silver solution in a relatively early time,
For that purpose, it is necessary to dissolve silver quickly to the saturation solubility. Therefore, ultrasonic waves are applied to the 4-silver elution tank containing the solid silver compound and purified water to forcibly vibrate, thereby dissolving silver efficiently. 14 in the 4 silver elution tank
When the silver concentration of the silver solution reaches the saturation solubility of silver oxide, it does not further increase even if vibration is applied, and the silver concentration is stabilized at a certain upper limit concentration. Therefore, also in the system shown in this example, a 14 silver solution having a stable silver concentration can be added to 11 purified water.
【０００９】図３に、本発明の第２の実施例の構成概要
断面図を示す。図３はいわゆるアウトインタイプの浄水
器で、１５筐体の内部に濾材として１８銀添着活性炭が
入れられている。１６水道水入口から入った被処理水
（必ずしも水道水である必要はない）は１５筐体と２０
仕切の間を通過しながら１８銀添着活性炭内部へと進
み、中央に設けられた２１中央水路から１７浄化水出口
を経て使用者に供給される。従来、銀添着活性炭は浄水
器内部、特に微生物の発生しやすい活性炭部に制菌作用
をもたせるために使用されている。従って、通常は銀を
活性炭に担持し、活性炭との重量比０．１％程度の銀を
活性炭部に混入しているが、この状態では浄水器の下流
側配管に溶解できる銀はせいぜい１〜３μｇ／リットル
でしかない。従って、従来から行われている銀の混入量
では浄水器下流側配管に対して十分な制菌作用を持たせ
ることができない。本実施例では、活性炭部に対する銀
の混入量を増加し、活性炭との重量比で４％以上の銀
を、活性炭に担持したものを用いて混入した。その結
果、浄水器下流側配管内において従来１〜３μｇ／リッ
トルの銀を溶出していた状態から、通水直後には１２０
μｇ／リットルの銀濃度を検出し、その後徐々に銀濃度
は低下してほぼ２０μｇ／リットルの値で安定して通水
できることが確認できた。FIG. 3 shows a schematic sectional view of the structure of a second embodiment of the present invention. FIG. 3 shows a so-called out-in type water purifier, in which 18 silver-impregnated activated carbon is put as a filter material in 15 cases. 16 The water to be treated (not necessarily tap water) entered from the tap water inlet is 15 casings and 20
While passing between the partitions, it proceeds into the 18-silver impregnated activated carbon, and is supplied to the user via the 17 purified water outlet from the 21 central water channel provided at the center. Conventionally, activated carbon impregnated with silver has been used to impart a bacteriostatic action to the inside of a water purifier, particularly to an activated carbon portion where microorganisms are easily generated. Therefore, usually, silver is supported on activated carbon, and silver having a weight ratio of about 0.1% to activated carbon is mixed in the activated carbon part. In this state, silver that can be dissolved in the downstream pipe of the water purifier is at most 1 to 1. Only 3 μg / liter. Therefore, the conventional amount of silver cannot provide a sufficient bacteriostatic effect on the piping downstream of the water purifier. In the present example, the amount of silver mixed into the activated carbon part was increased, and 4% or more of silver by weight with respect to the activated carbon was mixed with the activated carbon. As a result, from the state in which silver of 1 to 3 μg / liter was conventionally eluted in the downstream pipe of the water purifier, immediately after passing the water, 120
A silver concentration of μg / liter was detected, and thereafter, it was confirmed that the silver concentration gradually decreased and water could be stably passed at a value of approximately 20 μg / liter.
【００１０】ここで、通水直後であっても１２０μｇ／
リットルの銀の溶出は、米国ＥＰＡが推奨する１００μ
ｇ／リットル以下を越えている。望ましくは通水直後か
ら１００μｇ／リットル以下の銀濃度を溶出させること
であり、その方法として、活性炭との重量比で４％以上
の銀を、活性炭に担持したものを浄水器に充填する前の
段階で清浄な水を用いて洗浄し、乾燥してから充填し
た。その結果、通水直後から浄水器の下流側配管内では
８０μｇ／リットルの銀濃度であることを確認した。更
に、活性炭充填前の銀を担持した活性炭の洗浄に要する
時間を短縮し、あるいは通水開始直後の銀濃度を制御す
る方法として、洗浄に用いる浄水を昇温することも有効
な手段であることを確認した。Here, even immediately after passing water, 120 μg /
The elution of one liter of silver is 100 μm as recommended by the US EPA.
g / liter or less. Desirably, a silver concentration of 100 μg / liter or less is eluted immediately after the water is passed. As a method, silver having a weight ratio of 4% or more with activated carbon loaded on activated carbon before filling into a water purifier is used. The steps were washed with clean water, dried and filled. As a result, it was confirmed that the silver concentration was 80 μg / liter in the downstream pipe of the water purifier immediately after the passage of water. Further, as a method of shortening the time required for washing the activated carbon carrying silver before filling with activated carbon or controlling the silver concentration immediately after starting the passage of water, raising the temperature of purified water used for washing is also an effective means. It was confirmed.
【００１１】[0011]
【発明の効果】以上述べたように、本発明によればイン
ライン型浄水装置において、味覚の低下を招いたり昇温
により発ガン性物質を生成する危険性のある塩素を添加
することなく、浄水装置の下流側配管の滞留水に対して
安全で効果的な制菌方法を提供することができる。As described above, according to the present invention, in an in-line type water purification apparatus, water purification can be performed without adding chlorine which may cause a decrease in taste or generate a carcinogenic substance due to an increase in temperature. It is possible to provide a safe and effective bacteriostatic method for stagnant water in the downstream piping of the device.
【図面の簡単な説明】[Brief description of the drawings]
【図１】銀添加装置を付加した浄水装置構成概要Fig. 1 Schematic of water purification system with silver addition device
【図２】銀による大腸菌の殺菌作用データFig. 2 Data on the bactericidal action of silver on Escherichia coli
【図３】銀添活性炭を用いた銀溶出機能付き浄水器の構
成概要Fig. 3 Outline of configuration of water purifier with silver elution function using silver-activated carbon
１ 浄水器 ２ 電磁弁 ３ 逆止弁 ４ 銀溶出タンク ５ 水位検出装置 ６ 超音波振動装置 ７ 定量吐出ポンプ ８ 流量計 ９ 制御ユニット １０ 水道水 １１ 浄化水 １２ 制御信号 １３ 検出信号 １４ 銀溶液 １５ 筐体 １６ 水道水入口 １７ 浄化水出口 １８ 銀添着活性炭 １９ 水流 ２０ 仕切 ２１ 中央水路 DESCRIPTION OF SYMBOLS 1 Water purifier 2 Solenoid valve 3 Check valve 4 Silver elution tank 5 Water level detection device 6 Ultrasonic vibration device 7 Metering discharge pump 8 Flow meter 9 Control unit 10 Tap water 11 Purified water 12 Control signal 13 Detection signal 14 Silver solution 15 Case Body 16 Tap water inlet 17 Purified water outlet 18 Activated carbon impregnated with silver 19 Water flow 20 Partition 21 Central waterway
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０２Ｆ 1/50 ５４０ Ｃ０２Ｆ 1/50 ５４０Ｆ ５５０ ５５０Ｃ ５５０Ｌ ５６０ ５６０Ｂ ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI C02F 1/50 540 C02F 1/50 540F 550 550C 550L 560 560B
Claims (4)
ち、配管の途中に切り込んで設置するインライン型浄水
装置において、浄水装置の下流側配管に銀を１０μｇ／
リットル以上添加する銀添加装置を付加したことを特徴
とする浄水装置。1. An in-line type water purifier installed in a water purifier having a function of removing chlorine, which is cut in the middle of a pipe and installed in a downstream pipe of the water purifier at a concentration of 10 μg / silver.
A water purifier characterized by adding a silver adding device for adding more than 1 liter.
流側配管に添加する銀を１０μｇ／リットル以上１００
μｇ／リットル以下に制御した浄水装置。2. The method according to claim 1, wherein the silver added to the downstream pipe of the water purification device is 10 μg / liter or more.
Water purifier controlled to less than μg / liter.
ち、配管の途中に切り込んで設置するインライン型浄水
装置において、浄水装置から浄水装置の下流側配管に銀
を１０μｇ／リットル以上添加する機構を備えた浄水装
置。3. In a water purifier having a function of removing chlorine, a mechanism for adding 10 μg / liter or more of silver from a water purifier to a downstream pipe of the water purifier in an in-line type water purifier installed by cutting in the middle of a pipe. Water purifier equipped with
流側に添加する銀を１０μｇ／リットル以上１００μｇ
／リットル以下に制御した浄水装置。4. The method according to claim 3, wherein the silver added to the downstream side of the water purification device is at least 10 μg / liter and at least 100 μg.
Water purifier controlled to less than / liter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22763697A JPH1157691A (en) | 1997-08-07 | 1997-08-07 | In-line type water purification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22763697A JPH1157691A (en) | 1997-08-07 | 1997-08-07 | In-line type water purification facility |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003286852A Division JP2004000989A (en) | 2003-08-05 | 2003-08-05 | Water purification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1157691A true JPH1157691A (en) | 1999-03-02 |
Family
ID=16864003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22763697A Withdrawn JPH1157691A (en) | 1997-08-07 | 1997-08-07 | In-line type water purification facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1157691A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100688388B1 (en) * | 2005-04-27 | 2007-03-02 | 위니아만도 주식회사 | water purifier and control method silver supply apparatus |
| JP2007054750A (en) * | 2005-08-25 | 2007-03-08 | Toray Ind Inc | Water purifier |
-
1997
- 1997-08-07 JP JP22763697A patent/JPH1157691A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100688388B1 (en) * | 2005-04-27 | 2007-03-02 | 위니아만도 주식회사 | water purifier and control method silver supply apparatus |
| JP2007054750A (en) * | 2005-08-25 | 2007-03-08 | Toray Ind Inc | Water purifier |
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