JPH0929232A - Device for removing dissolved trihalomethane in bathtub water - Google Patents
Device for removing dissolved trihalomethane in bathtub waterInfo
- Publication number
- JPH0929232A JPH0929232A JP7202693A JP20269395A JPH0929232A JP H0929232 A JPH0929232 A JP H0929232A JP 7202693 A JP7202693 A JP 7202693A JP 20269395 A JP20269395 A JP 20269395A JP H0929232 A JPH0929232 A JP H0929232A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- trihalomethane
- water
- space
- 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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- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、入浴浴槽水中に溶存す
るトリハロメタンの除去装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing trihalomethane dissolved in bathtub water.
【０００２】[0002]
【従来の技術】近年、河川水中の有機物濃度の増加に伴
い、水道水として供するため殺菌剤として塩素を多量に
用いる傾向にあり、有機物と塩素との反応により生成す
る発癌性或いは変異原性原因物質といわれるトリハロメ
タンの濃度が増加し水道水中に微量ながら溶存すること
が問題となっている。更に、水道水は、その温度を上げ
ると、未反応の有機物と塩素との反応が促進され、クロ
ロホルム等のトリハロメタンが生成し高濃度の溶液とな
り、例えば、入浴浴槽水においては、浴槽水から揮発し
たトリハロメタンが浴室内に充満し、入浴者がトリハロ
メタンガスに曝されることの危険性が指摘されている。2. Description of the Related Art In recent years, as the concentration of organic substances in river water has increased, there has been a tendency to use a large amount of chlorine as a bactericide for serving as tap water, which is a carcinogenic or mutagenic cause produced by the reaction between organic substances and chlorine. The concentration of trihalomethane, which is said to be a substance, is increasing and it is a problem that it is dissolved in tap water in a trace amount. Furthermore, when the temperature of tap water is raised, the reaction between unreacted organic matter and chlorine is promoted, and trihalomethane such as chloroform is produced to become a high-concentration solution.For example, in bath water, it volatilizes from the bath water. It has been pointed out that there is a risk that the bathers will be exposed to the trihalomethane gas when the bath is filled with trihalomethane.
【０００３】特に、終日入浴が可能な営業浴場や入浴可
能な状態を長時間保時するようにした家庭用風呂のよう
な随時入浴し得る環境下では、トリハロメタンガスによ
る危険性がある。[0003] In particular, there is a danger of trihalomethane gas in an environment where a bath can be taken at any time, such as a commercial bath that can be bathed all day or a domestic bath in which the bath can be kept for a long time.
【０００４】一方、従来より、水中に溶存する揮発性有
機物を除去する方法として、中空糸膜を用い、その膜壁
を介して水中に溶存する揮発性有機物をガスとして除去
する方法が特開平５−１６９０５１号公報、特開平６−
６３５３６号公報等で提案されている。On the other hand, conventionally, as a method of removing volatile organic substances dissolved in water, a method of using a hollow fiber membrane and removing the volatile organic substances dissolved in water as a gas through the membrane wall thereof is disclosed in Japanese Patent Laid-Open No. Hei 5 (1999) -5. -169051 Publication, JP-A-6-
It is proposed in Japanese Patent No. 63536.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、特定
の中空糸膜を用い、長時間加温状態にある入浴浴槽水か
ら直接トリハロメタンを効率よく除去し得る入浴浴槽水
の溶存トリハロメタン除去装置を提供することにある。DISCLOSURE OF THE INVENTION An object of the present invention is to remove a dissolved trihalomethane in bath tub water, which can efficiently remove trihalomethane directly from bath tub water which has been heated for a long time by using a specific hollow fiber membrane. To provide.
【０００６】[0006]
【課題を解決するための手段】本発明は、筒状容器内に
均質層含有複合中空糸膜をその両端部を開口状態で固定
して収納し、中空糸膜壁によって膜内の空間と膜外の空
間を形成し、一方の空間に連通する浴槽水の導入口及び
導出口、他方の空間と連通するガスの排出口を容器にそ
れぞれ設けた中空糸膜モジュールと、ガスを排出する換
気装置とからなる入浴浴槽水の溶存トリハロメタン除去
装置にある。According to the present invention, a homogeneous layer-containing composite hollow fiber membrane is housed in a tubular container with both ends fixed in an open state, and the hollow fiber membrane wall allows the space inside the membrane and the membrane. A hollow fiber membrane module in which a container is provided with an inlet and an outlet for forming bath water that communicates with one space and an outlet for gas that communicates with the other space, and a ventilation device that discharges the gas. It is a device for removing dissolved trihalomethanes from bathtub water.
【０００７】本発明の浴槽水のトリハロメタン除去装置
は、中空糸膜モジュールとガス排出の換気装置からな
り、中空糸膜モジュールは、均質層含有複合中空糸膜と
筒状容器から構成されるが、筒状容器内に中空糸膜をそ
の両端部を開口状態で固定して収納し、中空糸膜壁によ
って膜内の空間と膜外の空間を形成し、一方の空間に連
通する浴槽水の導入口及び導出口を筒状容器の端部と側
壁のいずれか一方の部位に、他方の空間と連通するガス
の排気口を他方の部位にそれぞれ設けてある。The device for removing trihalomethanes from bath water of the present invention comprises a hollow fiber membrane module and a gas exhaust ventilation device. The hollow fiber membrane module comprises a homogeneous layer-containing composite hollow fiber membrane and a tubular container. A hollow fiber membrane is housed in a cylindrical container with both ends fixed in an open state, the hollow fiber membrane wall forms a space inside the membrane and a space outside the membrane, and the introduction of bath water that communicates with one space The mouth and the outlet are provided at either one of the end portion and the side wall of the cylindrical container, and the gas exhaust port communicating with the other space is provided at the other portion.
【０００８】従って、本発明の浴槽水のトリハロメタン
除去装置における中空糸膜モジュールとしては、均質層
含有複合中空糸膜が収納された筒状容器の一方の端部に
浴槽水の導入口、他方の端部に浴槽水の導出口を設け、
容器側壁にガスの排出口をまたは更に送風口を設けた中
空糸膜モジュールであってもよく、また、均質層含有複
合中空糸膜収納の筒状容器の側壁に浴槽水の導入口及び
導出口を設け、筒状容器の端部にガスの排出口をまたは
更に他方の端部に送風口を設けた中空糸膜モジュールで
あってもよい。Therefore, as the hollow fiber membrane module in the bath water trihalomethane removal apparatus of the present invention, one end of the cylindrical container accommodating the homogeneous layer-containing composite hollow fiber membrane is provided with an inlet for bath water and the other is provided. A bath water outlet is provided at the end,
It may be a hollow fiber membrane module in which a gas outlet or a blower is further provided on the side wall of the container, and the inlet and outlet of bath water are provided on the side wall of the cylindrical container containing the homogeneous layer-containing composite hollow fiber membrane. The hollow fiber membrane module may be a hollow fiber membrane module in which a gas outlet is provided at the end of the tubular container or a blower is provided at the other end.
【０００９】本発明で中空糸膜モジュールを構成する均
質層含有複合中空糸膜は、膜厚８μｍ以下のガス分離機
能を備えた均質層を補強機能を有する多孔質層で挟み込
んだ三層構造を有し、１×１０-3ｃｍ3（ＳＴＰ）／ｃ
ｍ2／ｓｅｃ／ｃｍＨｇ以上のクロロホルム透過速度を
有する三層構造中空糸膜が好ましく用いられる。均質層
含有複合中空糸膜においては、均質層が存在するため多
孔質層の微細孔からの長時間使用による水漏れを起こす
ことはない。また、クロロホルム透過速度が１×１０-3
ｃｍ3（ＳＴＰ）／ｃｍ2／ｓｅｃ／ｃｍＨｇ未満の中空
糸膜では、浴槽水中に溶存するトリハロメタンの透過速
度が遅く、効率的に浴槽水よりトリハロメタンを除去す
ることが困難である。The homogeneous layer-containing composite hollow fiber membrane constituting the hollow fiber membrane module of the present invention has a three-layer structure in which a homogeneous layer having a gas separation function of 8 μm or less in thickness is sandwiched by porous layers having a reinforcing function. Available, 1 × 10 -3 cm 3 (STP) / c
A three-layer hollow fiber membrane having a chloroform permeation rate of m 2 / sec / cmHg or more is preferably used. In the homogeneous layer-containing composite hollow fiber membrane, the presence of the homogeneous layer does not cause water leakage from the fine pores of the porous layer due to long-term use. The chloroform transmission rate is 1 × 10 -3.
With a hollow fiber membrane having a density of less than cm 3 (STP) / cm 2 / sec / cmHg, the permeation rate of trihalomethane dissolved in bath water is slow, and it is difficult to efficiently remove trihalomethane from bath water.
【００１０】複合中空糸膜の均質層を構成するポリマー
としては、セグメント化ポリウレタン、ポリジメチルシ
ロキサン等のシリコン系ポリマー、ポリ−４−メチルペ
ンテン−１、低密度ポリエチレン等のポリオレフィン系
ポリマー、ポリアクリルアミド等トリハロメタンと親和
性の高いポリマーであることが好ましい。As the polymer constituting the homogeneous layer of the composite hollow fiber membrane, segmented polyurethane, silicone-based polymer such as polydimethylsiloxane, poly-4-methylpentene-1, polyolefin-based polymer such as low-density polyethylene, polyacrylamide, etc. It is preferable that the polymer has a high affinity with trihalomethane.
【００１１】また、複合中空糸膜の多孔質層を構成する
ポリマーとしては、ポリエチレン、ポリ−３−メチルブ
テン−１、ポリ−４−メチルペンテン−１等のポリオレ
フィン系ポリマー、ポリフッ化ビニリデン、ポリテトラ
フルオロエチレン等のフッ素系ポリマー、ポリスルフォ
ン、ポリエーテルエーテルケトン、ポリエーテルケトン
等のポリマーが挙げられるが、容易に多孔質形成が可能
であることからポリオレフィン系ポリマーであることが
好ましい。As the polymer constituting the porous layer of the composite hollow fiber membrane, polyethylene, poly-3-methylbutene-1, poly-4-methylpentene-1, etc. polyolefin polymers, polyvinylidene fluoride, polytetra Examples thereof include fluoropolymers such as fluoroethylene, and polymers such as polysulfone, polyetheretherketone, and polyetherketone. Among them, polyolefin-based polymers are preferable because they can easily form a porous structure.
【００１２】複合中空糸膜を構成する均質層形成用ポリ
マーと多孔質層形成用ポリマーとの組み合わせは、特に
限定はなく、異種のポリマー或いは同種のポリマーの組
み合わせであってもよい。本発明で用いる均質層含有複
合中空糸膜は、均質層を有し、好ましくは均質層を多孔
質層で挟んだ三層構造、即ち均質層を間にし両側から多
孔質層で挟んだサンドイッチ構造であるので、そのハン
ドリング性が良好であり、トリハロメタンの除去特性に
優れたものである。The combination of the polymer for forming a homogeneous layer and the polymer for forming a porous layer forming the composite hollow fiber membrane is not particularly limited and may be a different kind of polymer or a combination of the same kind of polymers. The composite hollow fiber membrane containing a homogeneous layer used in the present invention has a homogeneous layer, and preferably has a three-layer structure in which the homogeneous layer is sandwiched between porous layers, that is, a sandwich structure in which the homogeneous layer is sandwiched between the porous layers from both sides. Therefore, the handling property is good and the trihalomethane removal property is excellent.
【００１３】かかる均質層含有複合中空糸膜は、例え
ば、特公平３−４４８１１号公報等に開示された方法に
より、多重円筒形の紡糸ノズルを用い、均質層を形成す
るポリマーと多孔質層を形成するポリマーとを交互に配
置させて紡糸し、均質層を多孔質化することなく、多孔
質層となる層のみを多孔質化する条件で延伸する方法に
より製造される。Such a homogeneous layer-containing composite hollow fiber membrane is prepared, for example, by the method disclosed in Japanese Patent Publication No. 3-44811 and the like, using a multi-cylindrical spinning nozzle to form a polymer and a porous layer forming a homogeneous layer. It is produced by a method in which the polymer to be formed is alternately arranged and spun, and stretching is carried out under the condition that only the layer to be the porous layer is made porous, without making the homogeneous layer porous.
【００１４】本発明における中空糸膜モジュールの筒状
容器としては、特に限定はないが、ＡＢＳ等の合成樹
脂、ステンレススチール等の金属から構成され、減圧或
いは加圧に耐える構造であることが好ましい。The cylindrical container of the hollow fiber membrane module in the present invention is not particularly limited, but it is preferably composed of synthetic resin such as ABS and metal such as stainless steel, and has a structure capable of withstanding reduced pressure or pressure. .
【００１５】本発明のトリハロメタン除去装置において
は、中空糸膜モジュールのガス排出口より中空糸膜で浴
槽水より気液分離されたトリハロメタンガスが排出され
るが、ガスを排出する換気装置は、容器に更に設けた送
風口に接続され、送風口からの加圧エアーの送風により
ガスをガス排出口より排出する送風装置であってもよい
が、ガス排出口に接続され、ガス排出口からガスを吸引
して排出する吸引装置であることが好ましい。In the trihalomethane removing device of the present invention, the trihalomethane gas separated from the water in the bath by the hollow fiber membrane is discharged from the gas discharge port of the hollow fiber membrane module. Although it may be a blower connected to the air outlet further provided to discharge the gas from the gas outlet by blowing the pressurized air from the air outlet, it is connected to the gas outlet to discharge the gas from the gas outlet. A suction device that sucks and discharges is preferable.
【００１６】吸引装置としては、装置の小型化が可能
で、水蒸気を含んだトリハロメタンガスを吸引すること
から、減圧装置、特に水封式真空ポンプであることが好
ましく、更に、真空ポンプの水封タンク内に紫外線ラン
プが取り付けられていることが、封水に溶解したトリハ
ロメタンを分解し低濃度の廃液として廃棄し得ることか
ら好ましい。容器には、必要により吸気口を設けてガス
の排気を容易にすることもできるが、吸引装置を真空ポ
ンプのような減圧装置とするときは、吸気口は必ずしも
設けなくてもよい。As the suction device, it is preferable to use a depressurizing device, especially a water-sealed vacuum pump, since the device can be downsized and sucks trihalomethane gas containing water vapor. It is preferable that an ultraviolet lamp is installed in the tank because trihalomethane dissolved in the sealing water can be decomposed and discarded as a low-concentration waste liquid. If necessary, the container can be provided with an intake port to facilitate the exhaust of gas, but when the suction device is a decompression device such as a vacuum pump, the intake port is not necessarily provided.
【００１７】[0017]
【実施例】以下、本発明を実施例により具体的に説明す
るが、図１及び図２は、本発明のトリハロメタン除去装
置の例の模式図であり、図１において、ＡＢＳ樹脂製の
筒状容器１内に均質層含有中空糸膜５を中空糸膜両端部
を開口状態でポッティング剤により固定して支持固定部
４を形成して収納し、中空糸膜内の空間と中空糸膜外の
空間を中空糸膜壁によって隔離して形成してある。EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples. FIGS. 1 and 2 are schematic views of an example of the trihalomethane removing apparatus of the present invention. In FIG. The homogeneous layer-containing hollow fiber membrane 5 is fixed in the container 1 with potting agent at both ends of the hollow fiber membrane in an open state to form the support fixing portion 4, which is housed in a space inside the hollow fiber membrane and outside the hollow fiber membrane. The space is formed by the hollow fiber membrane wall.
【００１８】なお、均質層含有中空糸膜５としては、次
のようにして得た複合中空糸膜を用いた。即ち、内層と
外層にＨｉｚｅｘ２２００ｊ（三井石油化学工業（株）
製高密度ポリエチレン）を、中間層にＴｅｃｏｆｌｅｘ
ＥＧ８０Ａ（Ｔｅｒｍｅｄｉｃｓ Ｉｎｋ．製セグメン
ト化ポリウレタン）を用い、吐出温度１６５℃、捲き取
り速度１８０ｍ／ｍｉｎで中空複合紡糸し、得られた中
空糸未延伸糸を１００℃で１時間アニール処理し、次い
で室温下で８０％延伸し、更に１０５℃の加熱炉中で延
伸倍率１３０％になるまで熱延伸して複合中空糸膜を得
た。As the homogeneous layer-containing hollow fiber membrane 5, a composite hollow fiber membrane obtained as follows was used. That is, Hizex 2200j (Mitsui Petrochemical Industry Co., Ltd.)
Made of high density polyethylene) with Tecoflex in the middle layer
Using EG80A (segmented polyurethane manufactured by Termedics Ink.), Hollow composite spinning was performed at a discharge temperature of 165 ° C. and a winding speed of 180 m / min, and the obtained undrawn hollow fiber was annealed at 100 ° C. for 1 hour, and then at room temperature. The composite hollow fiber membrane was stretched at 80% under a heating furnace at 105 ° C. until it reached a stretching ratio of 130%.
【００１９】得られた複合中空糸膜は、内層が多孔質
層、中間層が均質層、外層が多孔質層の三層構造であ
り、内径が２００μｍ、内層の多孔質層、中間層の均質
層、外層の多孔質層の厚さがそれぞれ２５μｍ、１μ
ｍ、３０μｍの複合中空糸膜であった。この複合中空糸
膜の表面を走査型電子顕微鏡で観察したところ、幅０．
０６〜０．０９μｍ、長さ０．１〜０．５μｍのスリッ
ト状の微細孔を有し、また、この複合中空糸膜のクロロ
ホルム透過速度は２．０×１０-3ｃｍ3（ＳＴＰ）／ｃ
ｍ2／ｓｅｃ／ｃｍＨｇである。The resulting composite hollow fiber membrane has a three-layer structure in which the inner layer is a porous layer, the intermediate layer is a homogeneous layer, and the outer layer is a porous layer. The inner diameter is 200 μm, the inner porous layer and the intermediate layer are homogeneous. The thickness of the outer layer and the outer layer is 25μm and 1μ, respectively
It was a composite hollow fiber membrane of m and 30 μm. When the surface of this composite hollow fiber membrane was observed with a scanning electron microscope, it had a width of 0.
The composite hollow fiber membrane has a slit-like fine hole of 06 to 0.09 μm and a length of 0.1 to 0.5 μm, and the chloroform permeation rate of this composite hollow fiber membrane is 2.0 × 10 −3 cm 3 (STP) / c
m 2 / sec / cmHg.
【００２０】この容器１の端部では中空糸膜内の空間に
それぞれ連通するが、容器１の一方の端部に浴槽水の導
入口２及び容器１の他方の端部に浴槽水の導出口３を設
け、容器１の側壁に中空糸膜外の空間に連通するガスの
排出口６及び吸気口７を設けた中空糸膜モジュールと
し、この中空糸膜モジュールのガス排出口６に吸引装置
として水封式真空ポンプ８が接続され、ガスが吸引され
るよう構成されており、真空ポンプ８の封水タンク９内
には紫外線ランプ１０が取り付けられている。図２にお
いては、吸気口７を設けず、ガス排出口６に水封式真空
ポンプ８が接続され、ガスが減圧吸引される。The ends of the container 1 communicate with the spaces in the hollow fiber membrane, respectively, and one end of the container 1 has a bath water inlet 2 and the other end of the container 1 has a bath water outlet. 3 is provided, and a side wall of the container 1 is provided with a gas discharge port 6 communicating with the space outside the hollow fiber membrane and an intake port 7, and the gas discharge port 6 of this hollow fiber membrane module serves as a suction device. A water-sealed vacuum pump 8 is connected and configured to suck gas, and an ultraviolet lamp 10 is installed in a water tank 9 of the vacuum pump 8. In FIG. 2, the suction port 7 is not provided, and the water discharge type vacuum pump 8 is connected to the gas discharge port 6 to suck gas under reduced pressure.
【００２１】図３は、本発明のトリハロメタン除去装置
を組み込んだトリハロメタン除去システムの例の構成図
であるが、入浴浴槽１１より給水された浴槽水は、フィ
ルター１２、本発明の除去装置１３、送液ポンプ１４、
加温装置１５、殺菌装置１６を順次経て入浴浴槽１１に
戻るフローで循環する。フィルター１２には、毛髪、垢
等を除去するためには、不織布等のメッシュが数百μｍ
〜数ｍｍのフィルターが用いられ、或いは更には細菌等
を除去するために、孔径１０μｍ 以下のフィルター、
好ましくは中空糸膜または平幕が用いられる。FIG. 3 is a block diagram of an example of a trihalomethane removal system incorporating the trihalomethane removal device of the present invention. The bath water supplied from the bath tub 11 is filtered by the filter 12, the removal device 13 of the present invention, and sent. Liquid pump 14,
It is circulated by the flow returning to the bath tub 11 through the heating device 15 and the sterilization device 16 in sequence. In order to remove hair, dirt, etc., the filter 12 has a mesh of non-woven fabric of several hundred μm.
A filter with a pore size of 10 μm or less is used to remove bacteria, etc.
Hollow fiber membranes or flat curtains are preferably used.
【００２２】送液ポンプ１４には、吸引圧が高いダイヤ
フラム型液送ポンプ、ギヤポンプが好ましく用いられ、
フィルター１２及びトリハロメタン除去装置１３では浴
槽水は吸引濾過することにより、濾過及び気液分離をそ
れぞれ容易にする。加温装置１５は、循環中に低下する
浴槽水の温度を少なくとも元の浴槽水の温度に復するよ
うな加熱装置であればよい。殺菌装置１６には、オゾン
発生装置、紫外線ランプ、銀や銅等の抗菌性金属含有フ
ィルター等が用いられる。As the liquid feed pump 14, a diaphragm type liquid feed pump having a high suction pressure or a gear pump is preferably used.
In the filter 12 and the trihalomethane removing device 13, the bath water is suction-filtered to facilitate filtration and gas-liquid separation, respectively. The heating device 15 may be a heating device that restores the temperature of the bath water that drops during circulation to at least the original temperature of the bath water. As the sterilizer 16, an ozone generator, an ultraviolet lamp, an antibacterial metal-containing filter such as silver or copper, or the like is used.
【００２３】[0023]
【発明の効果】本発明のトリハロメタン除去装置は、長
時間の加温状態にある入浴浴槽水に溶存するトリハロメ
タンを効率よく除去することができ、浴室内の空気が揮
発したトリハロメタンガスにより汚染されることを防ぐ
ことができる。従って、本発明のトリハロメタン除去装
置を任意の補助装置と組み合わせ浴槽に装着するなら
ば、終日入浴が可能な営業浴場や入浴可能な状態を長時
間保時するようにした家庭用風呂のような随時入浴し得
る浴室環境を改善し得るもので入浴者に安全で快適な入
浴を可能とする。INDUSTRIAL APPLICABILITY The trihalomethane removing apparatus of the present invention can efficiently remove trihalomethane dissolved in the bathtub water that has been heated for a long time, and the air in the bathroom is contaminated by the vaporized trihalomethane gas. Can be prevented. Therefore, if the trihalomethane removing apparatus of the present invention is combined with an optional auxiliary apparatus and attached to a bathtub, it can be used at any time such as a business bath that allows bathing all day or a bath for home use that keeps the bathable state for a long time. The bath environment that can be bathed can be improved to enable bathers to take a safe and comfortable bath.
【図１】本発明のトリハロメタン除去装置の例の模式図
である。FIG. 1 is a schematic view of an example of a trihalomethane removal device of the present invention.
【図２】本発明のトリハロメタン除去装置の他の例の模
式図である。FIG. 2 is a schematic view of another example of the trihalomethane removing apparatus of the present invention.
【図３】本発明のトリハロメタン除去装置を組み込んだ
トリハロメタン除去システムの例の構成図である。FIG. 3 is a configuration diagram of an example of a trihalomethane removal system incorporating the trihalomethane removal device of the present invention.
１ 筒状容器 ２ 浴槽水導入口 ３ 浴槽水導出口 ４ ポッティング剤支持固定部 ５ 均質層含有中空糸膜 ６ ガス排出口 ７ 吸気口 ８ 水封式真空ポンプ ９ 封水タンク １０ 紫外線ランプ １１ 入浴浴槽 １２ フィルター １３ 本発明のトリハロメタン除去装置 １４ 送液ポンプ １５ 加温装置 １６ 殺菌装置 1 Cylindrical container 2 Bath water inlet 3 Bath water outlet 4 Potting agent support fixing part 5 Homogeneous layer containing hollow fiber membrane 6 Gas outlet 7 Air inlet 8 Water-sealed vacuum pump 9 Sealed water tank 10 Ultraviolet lamp 11 Bath bath 12 Filter 13 Trihalomethane Removal Device of the Present Invention 14 Liquid Transfer Pump 15 Heating Device 16 Sterilization Device
───────────────────────────────────────────────────── 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 63/02 Ｃ０２Ｆ 1/32 Ｃ０２Ｆ 1/32 Ｂ０１Ｄ 35/02 Ｊ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B01D 63/02 C02F 1/32 C02F 1/32 B01D 35/02 J
Claims (4)
その両端部を開口状態で固定して収納し、中空糸膜壁に
よって膜内の空間と膜外の空間を形成し、一方の空間に
連通する浴槽水の導入口及び導出口、他方の空間と連通
するガスの排出口を容器にそれぞれ設けた中空糸膜モジ
ュールと、ガスを排出する換気装置とからなる入浴浴槽
水の溶存トリハロメタン除去装置。1. A homogeneous layer-containing composite hollow fiber membrane is housed in a tubular container with both ends fixed in an open state, and a hollow fiber membrane wall forms a space inside the membrane and a space outside the membrane. Of the bathtub water, which is composed of a hollow fiber membrane module in which an inlet and an outlet for the bath water communicating with the space and a gas outlet communicating with the other space are provided in the container, and a ventilation device for discharging the gas. Trihalomethane removal device.
質層で挟み込んだ三層構造を有し、１×１０-3ｃｍ
3（ＳＴＰ）／ｃｍ2／ｓｅｃ／ｃｍＨｇ以上のクロロホ
ルム透過速度を有する複合中空糸膜である請求項１記載
の入浴浴槽水の溶存トリハロメタン除去装置。2. The homogeneous layer-containing composite hollow fiber membrane has a three-layer structure in which the homogeneous layer is sandwiched by porous layers and has a density of 1 × 10 −3 cm 2.
The apparatus for removing trihalomethane dissolved in bathing bath water according to claim 1, which is a composite hollow fiber membrane having a chloroform permeation rate of 3 (STP) / cm 2 / sec / cmHg or more.
は請求項２記載の入浴浴槽水の溶存トリハロメタン除去
装置。3. The dissolved trihalomethane removing device according to claim 1, wherein the ventilation device is a suction device.
空ポンプの水封タンク内に紫外線ランプが取り付けられ
ている請求項１、請求項２または請求項３記載の入浴浴
槽水の溶存トリハロメタン除去装置。4. The dissolved trihalomethane of the bathtub water according to claim 1, 2 or 3, wherein the suction device is a water-sealed vacuum pump, and an ultraviolet lamp is installed in the water-sealed tank of the vacuum pump. Removal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7202693A JPH0929232A (en) | 1995-07-18 | 1995-07-18 | Device for removing dissolved trihalomethane in bathtub water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7202693A JPH0929232A (en) | 1995-07-18 | 1995-07-18 | Device for removing dissolved trihalomethane in bathtub water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0929232A true JPH0929232A (en) | 1997-02-04 |
Family
ID=16461598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7202693A Pending JPH0929232A (en) | 1995-07-18 | 1995-07-18 | Device for removing dissolved trihalomethane in bathtub water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0929232A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001526098A (en) * | 1997-12-22 | 2001-12-18 | セルガード，インコーポレイティド | Apparatus for removing gas bubbles and dissolved gas in liquid |
| US11883784B2 (en) | 2017-09-11 | 2024-01-30 | Fresenius Medical Care Holdings, Inc. | Microporous membrane and methods to make same |
-
1995
- 1995-07-18 JP JP7202693A patent/JPH0929232A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001526098A (en) * | 1997-12-22 | 2001-12-18 | セルガード，インコーポレイティド | Apparatus for removing gas bubbles and dissolved gas in liquid |
| US11883784B2 (en) | 2017-09-11 | 2024-01-30 | Fresenius Medical Care Holdings, Inc. | Microporous membrane and methods to make same |
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