JP2002346568A - Electric regeneration type pure water production apparatus - Google Patents

Electric regeneration type pure water production apparatus

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Publication number
JP2002346568A
JP2002346568A JP2001158968A JP2001158968A JP2002346568A JP 2002346568 A JP2002346568 A JP 2002346568A JP 2001158968 A JP2001158968 A JP 2001158968A JP 2001158968 A JP2001158968 A JP 2001158968A JP 2002346568 A JP2002346568 A JP 2002346568A
Authority
JP
Japan
Prior art keywords
exchanger
exchange membrane
chamber
mixture
anion
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Withdrawn
Application number
JP2001158968A
Other languages
Japanese (ja)
Inventor
Hajime Uchino
肇 内野
Naoya Kanazawa
直也 金澤
Keiichiro Hirakawa
圭一郎 平川
Original Assignee
Nippon Rensui Co Ltd
日本錬水株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Rensui Co Ltd, 日本錬水株式会社 filed Critical Nippon Rensui Co Ltd
Priority to JP2001158968A priority Critical patent/JP2002346568A/en
Publication of JP2002346568A publication Critical patent/JP2002346568A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an electric regeneration type pure water production apparatus, which is electrically stable, therefore stabilizing the water quality of treated water without deteriorating the water quality, and is improved so as to reduce the amount of power consumption. SOLUTION: This electric regeneration type pure water production apparatus is composed of a plurality of sets of demineralization chambers (81), or the like, and concentration chambers (91), or the like, which are sequentially formed between a positive electrode chamber (3) with a positive electrode (2) and a negative electrode chamber (5) with a negative electrode (4) by alternately arranging an anion-exchange membrane and a cation-exchange membrane. A mixture of a cation exchanger and an anion exchanger is housed in the demineralization chamber. The anion exchanger is exclusively housed between the mixture of the ion exchangers and the anion exchange membrane. The cation exchanger is exclusively housed between the mixture of the ion exchangers and the cation exchange membrane.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、電気再生式純水製
造装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric regeneration type pure water producing apparatus.
【0002】[0002]
【従来の技術】従来より、イオン交換体とイオン交換膜
を組み合わせ且つ電気透析の作用を利用した電気再生式
純水製造装置が提案されている。この装置は、含水状態
のイオン交換体が良好な導電体であることに着目して発
明されたものであり、基本的には、電気透析装置の陰イ
オン交換膜と陽イオン交換膜とで挟まれた脱塩室にイオ
ン交換体を充填して構成される。そして、脱塩室に電圧
を印可しながら脱塩されるべき被処理水を流通させて純
水を得る。電気再生式純水製造装置によれば、イオン交
換樹脂を使用した純水の製造方法の場合に必要な再生剤
が不要となる利点がある。
2. Description of the Related Art Hitherto, an electric regeneration type pure water producing apparatus which combines an ion exchanger and an ion exchange membrane and utilizes the action of electrodialysis has been proposed. This device was invented by paying attention to the fact that a water-containing ion exchanger is a good conductor, and is basically sandwiched between an anion exchange membrane and a cation exchange membrane of an electrodialysis device. The deionization chamber is filled with an ion exchanger. Then, the water to be desalinated is circulated while applying a voltage to the desalination chamber to obtain pure water. According to the electric regeneration type pure water production apparatus, there is an advantage that a regenerating agent required in the case of a pure water production method using an ion exchange resin is not required.
【0003】[0003]
【発明が解決しようとする課題】本発明の目的は、電気
的に安定であり、従って、処理水の水質を低下させない
で安定化させ、しかも、消費電力量を低減させることが
出来る様に改良された電気再生式純水製造装置を提供す
ることにある。
SUMMARY OF THE INVENTION It is an object of the present invention to improve the stability of the treated water so that the quality of the treated water can be stabilized without deteriorating and the power consumption can be reduced. An object of the present invention is to provide an electric regeneration type pure water producing apparatus.
【0004】[0004]
【課題を解決するための手段】本発明者らは、種々検討
を重ねた結果、意外にも、脱塩室に陽イオン交換体およ
び陰イオン交換体の混合物を収容し且つ当該イオン交換
体の混合物とイオン交換膜との間に同一イオンのイオン
交換体を収容させることにより、上記の目的を容易に達
成し得るとの知見を得た。
As a result of various studies, the present inventors have surprisingly put a mixture of a cation exchanger and an anion exchanger in a desalting chamber, and It has been found that the above object can be easily achieved by accommodating an ion exchanger of the same ion between the mixture and the ion exchange membrane.
【0005】本発明は、上記の知見に基づき達成された
ものであり、その要旨は、陽極を備えた陽極室と陰極を
備えた陰極室との間に陰イオン交換膜および陽イオン交
換膜を交互に配列して順次形成される複数組の脱塩室お
よび濃縮室から構成され、脱塩室には陽イオン交換体お
よび陰イオン交換体の混合物が収容されて成る電気再生
式純水製造装置であって、上記のイオン交換体の混合物
と陰イオン交換膜との間には単独の陰イオン交換体を収
容し、上記のイオン交換体の混合物と陽イオン交換膜と
の間には単独の陽イオン交換体を収容して成ることを特
徴とする電気再生式純水製造装置に存する。
The present invention has been achieved based on the above findings, and the gist of the present invention is to provide an anion exchange membrane and a cation exchange membrane between an anode chamber having an anode and a cathode chamber having a cathode. An electric regeneration type pure water production apparatus comprising a plurality of sets of a desalination chamber and a concentration chamber which are formed alternately and sequentially and in which a mixture of a cation exchanger and an anion exchanger is accommodated. A single anion exchanger is accommodated between the mixture of the ion exchangers and the anion exchange membrane, and a single anion exchanger is accommodated between the mixture of the ion exchangers and the cation exchange membrane. An electric regeneration type pure water production apparatus characterized by comprising a cation exchanger.
【0006】[0006]
【発明の実施の形態】以下、本発明の実施例を添付図面
に基づいて説明する。図1は、本発明の電気再生式純水
製造装置の一例の垂直縦断正面略図である。
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic vertical vertical sectional front view of an example of the electric regeneration type pure water production apparatus of the present invention.
【0007】本発明の気再生式純水製造装置(1)の基
本的構成は、従来のものと同じであり、陽極(2)を備
えた陽極室(3)と陰極(4)を備えた陰極室(5)と
の間に陰イオン交換膜(61)及び陽イオン交換膜(7
1)を交互に配列して順次形成される複数組の脱塩室
(81)、(82)・・・及び濃縮室(91)、(9
2)・・・から構成される。
The basic configuration of the gas regeneration type pure water producing apparatus (1) of the present invention is the same as that of the conventional apparatus, and comprises an anode chamber (3) having an anode (2) and a cathode (4). An anion exchange membrane (61) and a cation exchange membrane (7) between the cathode chamber (5).
A plurality of sets of the desalting chambers (81), (82),...
2)...
【0008】すなわち、陰イオン交換膜(61)と陽イ
オン交換膜(71)とに挟まれて脱塩室(81)が構成
され、同様にして陰イオン交換膜(62)と陽イオン交
換膜(72)とに挟まれて第2の脱塩室(82)が形成
される。この様にして図示の装置の場合は5個の脱塩室
が形成されている。一方、陽イオン交換膜(71)と陰
イオン交換膜(62)とに挟まれて第1濃縮室(91)
が形成され、同様にして陽イオン交換膜(72)と陰イ
オン交換膜(63)とに挟まれて第2濃縮室(92)が
形成される。この様にして図示の装置の場合は4個の濃
縮室が形成されている。そして、上記の5個の脱塩室に
は陽イオン交換体および陰イオン交換体の混合物(A)
がそれぞれ収容されている。
That is, a desalting chamber (81) is formed between the anion exchange membrane (61) and the cation exchange membrane (71). Similarly, the anion exchange membrane (62) and the cation exchange membrane are formed. A second desalting chamber (82) is formed sandwiched between (72). Thus, in the case of the illustrated apparatus, five desalination chambers are formed. On the other hand, the first concentration chamber (91) is sandwiched between the cation exchange membrane (71) and the anion exchange membrane (62).
Is formed, and similarly, a second concentration chamber (92) is formed between the cation exchange membrane (72) and the anion exchange membrane (63). Thus, in the case of the illustrated apparatus, four concentrating chambers are formed. Then, a mixture of a cation exchanger and an anion exchanger (A) is placed in the five desalting chambers.
Are accommodated respectively.
【0009】上記の脱塩室および濃縮室を形成するため
のイオン交換膜としては、通常の電気透析装置で採用さ
れているものが使用され、例えば、商品名「セレミオン
(旭硝子(株))」、「ネオセプタ(トクヤマ
(株))」、「アシプレックス(旭化成(株))」等の
市販品が挙げられる。
As the ion-exchange membrane for forming the above-mentioned desalting chamber and concentrating chamber, those used in ordinary electrodialysis equipment are used. For example, trade name "Selemion (Asahi Glass Co., Ltd.)" And commercially available products such as Neosepta (Tokuyama Corporation) and Aciplex (Asahi Kasei Corporation).
【0010】上記の脱塩室には、陽イオン交換体および
陰イオン交換体の混合物が収容される。斯かるイオン交
換体としては、通常の純水製造時の脱塩処理に使用され
ている陰イオン交換樹脂および陽イオン交換樹脂を使用
することも出来るが、比表面積が大きく且つイオン交換
反応が効率的であるイオン交換繊維を使用するのが有利
である。斯かるイオン交換繊維としては、具体的には、
ポリスチレン系繊維と補助剤との複合繊維にイオン交換
基を導入したもの、ポリビニルアルコールの繊維基体に
イオン交換基を導入したもの、ポリオレフィン系の繊維
に放射線を照射して放射線グラフト重合を利用してイオ
ン交換基を導入したもの等の市販品が利用できる。イオ
ン交換繊維を使用する場合、両イオン交換繊維を交換容
量で同当量混和し、これに不活性合成繊維を混合状態に
した後、不織布状にしたものが使用される。
[0010] The desalting chamber contains a mixture of a cation exchanger and an anion exchanger. As such an ion exchanger, an anion exchange resin and a cation exchange resin used in a desalination treatment at the time of ordinary pure water production can be used, but the specific surface area is large and the ion exchange reaction is efficient. It is advantageous to use a suitable ion exchange fiber. As such an ion exchange fiber, specifically,
Ion-exchange groups are introduced into a composite fiber of polystyrene-based fibers and auxiliary agents, ion-exchange groups are introduced into a polyvinyl alcohol fiber base, and radiation-irradiation is performed on polyolefin-based fibers using radiation graft polymerization. Commercial products such as those into which an ion exchange group is introduced can be used. In the case of using ion-exchange fibers, the same amount of both ion-exchange fibers is exchanged at the exchange capacity, and the mixture is mixed with inert synthetic fibers and then formed into a nonwoven fabric.
【0011】また、イオン交換樹脂は、通常の純水製造
に採用されているイオン交換樹脂から適宜選定される。
例えば、強酸性陽イオン交換樹脂としては、「ダイヤイ
オン(三菱化学(株)登録商標)SK1B」、「PK2
08」等、強塩基性陰イオン交換樹脂としては、「ダイ
ヤイオンSA10A」、「PA316」等が挙げられ
る。
[0011] The ion exchange resin is appropriately selected from ion exchange resins used in ordinary pure water production.
For example, as strongly acidic cation exchange resins, "Diaion (registered trademark of Mitsubishi Chemical Corporation) SK1B", "PK2
08 "and the like, and examples of the strongly basic anion exchange resin include" Diaion SA10A "," PA316 "and the like.
【0012】上記のイオン交換体は、再生形および塩形
の何れの型で使用してもよいが、水質の立ち上がりを早
くするのには再生形を使用するのがよい。また、上記の
イオン交換体(不織布または樹脂充填物)は、イオン交
換膜と異なり、そのポーラス構造により、イオンのみな
らず、水をも自由に通過し得る。
The above-mentioned ion exchanger may be used in any of a regenerated form and a salt form, but it is preferable to use the regenerated form to speed up the rise of water quality. Moreover, unlike the ion-exchange membrane, the above-mentioned ion exchanger (non-woven fabric or resin-filled material) can freely pass not only ions but also water due to its porous structure.
【0013】脱塩室に収容される上記のイオン交換体の
混合物と陰イオン交換膜との間には単独の陰イオン交換
体を収容し、上記のイオン交換体の混合物と陽イオン交
換膜との間には単独の陽イオン交換体を収容する。斯か
るイオン交換体としては、前記と同様のものが使用され
る。また、前記と同様、イオン交換繊維に不活性合成繊
維を混合状態にした後、不織布状にしたものが使用され
る。
[0013] A single anion exchanger is accommodated between the mixture of the above-mentioned ion exchangers and the anion exchange membrane accommodated in the desalination chamber, and the mixture of the above-mentioned ion exchangers and the cation exchange membrane are provided. In between contains a single cation exchanger. As such an ion exchanger, the same one as described above is used. In the same manner as described above, a non-woven fabric obtained by mixing inert synthetic fibers with ion-exchange fibers is used.
【0014】脱塩室における単独の陰(陽)イオン交換
体/イオン交換体の混合物/単独の陽(陰)イオン交換
体の厚さ比は、通常1:0.1〜10:1、好ましくは
1:1〜10:1である。
The thickness ratio of a single anion (cation) ion exchanger / a mixture of ion exchangers / a single cation (anion) ion exchanger in the desalting chamber is usually from 1: 0.1 to 10: 1, preferably from 1: 0.1 to 10: 1. Is 1: 1 to 10: 1.
【0015】本発明の好ましい装置においては、濃縮室
および/または電極室にも陽イオン交換体および陰イオ
ン交換体の混合物を収容する。イオン交換体の混合物と
しては、脱塩室の場合と同様のものが使用される。ま
た、イオン交換体の混合物は、電極室よりも濃縮室に収
容した方が好ましい結果が得られる。勿論、両室に収容
してもよい。
In a preferred apparatus according to the invention, the enrichment compartment and / or the electrode compartment also contain a mixture of cation and anion exchangers. As the mixture of ion exchangers, the same mixture as in the case of the desalting chamber is used. In addition, a more preferable result is obtained when the mixture of the ion exchanger is housed in the concentration chamber than in the electrode chamber. Of course, it may be accommodated in both rooms.
【0016】本発明の装置は次の様に使用される。5個
の各脱塩室には、並行して被処理水(脱イオンされる
水)を流入管(131)から供給する。処理水(脱イオ
ンされた水)は流出管(132)から流出される。4個
の各濃縮室には、並行して被処理水を流入管(141)
から供給する。各濃縮室に供給された被処理水は、濃縮
されて濃縮水として流出管(142)から排出される。
また、濃縮室への供給と同時に被処理水を流入管(12
1)から陽極室(3)に、流入管(123)から陰極室
(5)にそれぞれ導入し、各々流出管(122)、流出
管(124)から排出させる。
The apparatus of the present invention is used as follows. To each of the five desalting chambers, water to be treated (deionized water) is supplied from an inflow pipe (131) in parallel. The treated water (deionized water) flows out of the outflow pipe (132). The water to be treated is supplied to the four concentrating chambers in parallel with the inflow pipe (141).
Supplied from The water to be treated supplied to each concentrating chamber is concentrated and discharged from the outlet pipe (142) as concentrated water.
The water to be treated is supplied to the inflow pipe (12
From 1), they are introduced into the anode chamber (3), from the inflow pipe (123) into the cathode chamber (5), and discharged from the outflow pipe (122) and the outflow pipe (124), respectively.
【0017】上記の各流路により被処理水を流通させな
がら、陽極(2)及び陰極(4)から直流電流を通ずる
と、各脱塩室では被処理水中の不純物イオンが陽イオン
交換体および陰イオン交換体の混合物(Z)が有する陰
イオン交換基および陽イオン交換基により捕捉除去さ
れ、純水が製造されると共に、陽イオン交換体および陰
イオン交換体の混合物(Z)に捕捉された不純物イオン
は脱塩室の隔膜でもある陰イオン交換膜および陽イオン
交換膜により電気透析されて隣接する濃縮室に移動し、
濃縮され流出管(142)から排出される。
When a direct current is passed from the anode (2) and the cathode (4) while the water to be treated flows through each of the above channels, impurity ions in the water to be treated in each of the desalting chambers are converted into a cation exchanger and a cation exchanger. The mixture (Z) of the anion exchanger is trapped and removed by the anion exchange group and the cation exchange group, thereby producing pure water and being trapped by the mixture (Z) of the cation exchanger and the anion exchanger. The impurity ions were electrodialyzed by an anion exchange membrane and a cation exchange membrane, which are also diaphragms of a desalting chamber, and moved to an adjacent concentration chamber,
It is concentrated and discharged from the outlet pipe (142).
【0018】本発明の装置では、上記のイオン交換体の
混合物(Z)と陰イオン交換膜との間には単独の陰イオ
ン交換体(X)が収容され、上記のイオン交換体の混合
物(Z)と陽イオン交換膜との間には単独の陽イオン交
換体(Y)が収容されているため、各イオン交換膜
(X)及び(Y)とイオン交換体の混合物(Z)の境界
でのイオンの移動が円滑に行われ、その結果、本発明の
装置は、電気的に安定であり、従って、処理水の水質を
低下させないで安定化させ、しかも、消費電力量を低減
させることが出来る。また、斯かる作用効果は、濃縮室
および/または電極室にも陽イオン交換体および陰イオ
ン交換体の混合物(Z)を収容することによって助長さ
れる。なお。陰(陽)イオン交換膜/単独の陰(陽)イ
オン交換体/イオン交換体の混合物/単独の陽(陰)イ
オン交換体/陽(陰)イオン交換膜は、何れも相互に接
触している。
In the apparatus of the present invention, a single anion exchanger (X) is accommodated between the above-mentioned mixture of ion exchangers (Z) and the anion exchange membrane, and the mixture of the above-mentioned ion exchangers (X) is contained. Since a single cation exchanger (Y) is accommodated between Z) and the cation exchange membrane, the boundary between each ion exchange membrane (X) and the mixture (Z) of (Y) and the ion exchanger is present. As a result, the device of the present invention is electrically stable, and therefore, can stabilize the treated water without deteriorating the quality of the treated water and reduce the power consumption. Can be done. In addition, such an effect is promoted by containing the mixture (Z) of the cation exchanger and the anion exchanger also in the concentration chamber and / or the electrode chamber. In addition. The anion (cation) ion exchange membrane / single anion (cation) ion exchanger / mixture of ion exchangers / single cation (anion) ion exchanger / cation (anion) ion exchange membrane are all in contact with each other. I have.
【0019】[0019]
【実施例】次に、本発明を実施例により更に詳細に説明
するが、本発明は、その要旨を超えない限り以下の実施
例に限定されるものではない。
EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples unless it exceeds the gist.
【0020】実施例1〜6並びに比較例1及び2 図1に示す様な構造を有する電気再生式純水製造装置で
あって、脱塩室が45室および濃縮室が44室より成る
装置(A)と脱塩室が90室および濃縮室が89室より
成る装置(B)をそれぞれ使用して実験を行った。脱塩
室は、縦390mm、横130mm、厚さ2mmであ
り、濃縮室は、縦390mm、横130mm、厚さ2m
mである。
Examples 1 to 6 and Comparative Examples 1 and 2 This is an electric regeneration type pure water producing apparatus having a structure as shown in FIG. 1, wherein the apparatus comprises 45 desalination chambers and 44 enrichment chambers ( The experiment was carried out using the apparatus (A) and the apparatus (B) having 90 desalting chambers and 89 concentrating chambers, respectively. The desalting chamber is 390 mm long, 130 mm wide and 2 mm thick, and the enrichment chamber is 390 mm long, 130 mm wide and 2 m thick.
m.
【0021】陰イオン交換膜としては、セレミオンAM
D[旭硝子(株)製、セレミオンは同社登録商標]を使
用し、その寸法は、縦390mm、横130mmであ
る。陽イオン交換膜としては、セレミオンCMD[旭硝
子(株)製]を使用し、その寸法は、縦390mm、横
130mmである。
As the anion exchange membrane, Selemion AM
D [manufactured by Asahi Glass Co., Ltd., Selemion is a registered trademark of the company] is used, and its dimensions are 390 mm long and 130 mm wide. As the cation exchange membrane, Selemion CMD (manufactured by Asahi Glass Co., Ltd.) is used, and its dimensions are 390 mm in length and 130 mm in width.
【0022】上記の脱塩室に収容するイオン交換体の混
合物としては、ポリビニルアルコールをマトリックスに
スチレン−ジビニルベンゼンのスルホン酸化物を均一に
分散させた強酸性陽イオン交換繊維(株式会社ニチビ製
「IEF−SC」)とポリビニルアルコールの主鎖にト
リメチルアンモニウム基を付加してなる強塩基性陰イオ
ン交換繊維(株式会社ニチビ製「IEF−SA」)の両
イオン交換繊維を交換容量で同当量混和し、これに不活
性合成繊維としてポリエステル繊維を50%の割合で混
合状態にした後、不織布状にしたものを使用した。
As the mixture of the ion exchanger contained in the desalting chamber, a strongly acidic cation exchange fiber ("Nichibi Co., Ltd.") in which a styrene-divinylbenzene sulfonate is uniformly dispersed in a matrix of polyvinyl alcohol. IEF-SC ") and a strongly basic anion exchange fiber obtained by adding a trimethylammonium group to the main chain of polyvinyl alcohol (" IEF-SA "manufactured by Nichibi Co., Ltd.). Then, a polyester fiber was mixed with the inert synthetic fiber at a ratio of 50% as a non-woven fabric.
【0023】上記の脱塩室において、上記のイオン交換
体の混合物と陰イオン交換膜との間に収容する陰イオン
交換体としては、上記の強塩基性陰イオン交換繊維(株
式会社ニチビ製「IEF−SA」)に不活性合成繊維と
してポリエステル繊維を50%の割合で混合状態にした
後、不織布状にしたものを使用した。
In the desalting chamber, as the anion exchanger housed between the mixture of the ion exchanger and the anion exchange membrane, the strongly basic anion exchange fiber ("Nichibi Co., Ltd.") IEF-SA ") was prepared by mixing polyester fibers as inert synthetic fibers at a ratio of 50% and then forming a nonwoven fabric.
【0024】上記の脱塩室において、上記のイオン交換
体の混合物と陽イオン交換膜との間に収容する陽イオン
交換体としては、上記の強酸性陽イオン交換繊維(株式
会社ニチビ製「IEF−SC」)に不活性合成繊維とし
てポリエステル繊維を50%の割合で混合状態にした
後、不織布状にしたものを使用した。
In the desalting chamber, as the cation exchanger contained between the mixture of the ion exchanger and the cation exchange membrane, the strongly acidic cation exchange fiber ("IEF" manufactured by Nichibi Co., Ltd.) may be used. -SC "), a polyester fiber was mixed at a ratio of 50% as an inert synthetic fiber and then formed into a nonwoven fabric.
【0025】上記の脱塩室における陰イオン交換体
(X)/イオン交換体の混合物(Z)/陽イオン交換体
(Y)の厚さ比は、1:4:1とした。
The thickness ratio of anion exchanger (X) / ion exchanger mixture (Z) / cation exchanger (Y) in the desalting chamber was 1: 4: 1.
【0026】そして、以下の表1に示す様に、上記の様
に構成された装置の濃縮室および/または電極室に陽イ
オン交換体および陰イオン交換体の混合物を収容した。
イオン交換体の混合物としては、上記の脱塩室の場合と
同様に調製した不織布状のものを使用した。
Then, as shown in Table 1 below, a mixture of a cation exchanger and an anion exchanger was accommodated in the concentration chamber and / or the electrode chamber of the apparatus constructed as described above.
As the mixture of the ion exchangers, a nonwoven fabric prepared in the same manner as in the case of the desalting chamber was used.
【0027】[0027]
【表1】 [Table 1]
【0028】被処理水としては横浜市水のRO(逆浸透
膜)処理水(電気伝導度:20μS/cm)を使用し
た。流入管(131)から脱塩室にLV25m/hで被
処理水を通水した。同様に両電極室および濃縮室にも被
処理水を脱塩室への供給速度と同じ流速で供給した。通
水と同時に両電極室の電極板に600Vの直流電圧を印
可し、脱塩室より流出する処理水の抵抗率を測定した。
その結果を図2〜図4に示す。
As the water to be treated, RO (reverse osmosis membrane) treated water (electric conductivity: 20 μS / cm) of Yokohama City Water was used. Water to be treated was passed from the inflow pipe (131) to the desalination chamber at an LV of 25 m / h. Similarly, the water to be treated was supplied to both electrode chambers and the concentration chamber at the same flow rate as the supply rate to the desalination chamber. A DC voltage of 600 V was applied to the electrode plates of both electrode chambers simultaneously with the passage of water, and the resistivity of the treated water flowing out of the desalting chamber was measured.
The results are shown in FIGS.
【0029】[0029]
【発明の効果】以上説明した本発明によれば、電気的に
安定であり、従って、処理水の水質を一層低下させない
で安定化させ、しかも、消費電力量を一層低減させるこ
とが出来る様に改良された電気再生式純水製造装置が提
供され、本発明の工業的価値は大きい。
According to the present invention described above, it is electrically stable, so that the treated water can be stabilized without further lowering the water quality, and the power consumption can be further reduced. An improved electric regeneration type pure water production apparatus is provided, and the industrial value of the present invention is great.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の電気再生式純水製造装置の一例の垂直
縦断正面略図
FIG. 1 is a schematic vertical front view of an example of an electric regeneration type pure water production apparatus of the present invention.
【図2】実施例1及び2並びに比較例1及び2で得られ
た通水経過日数に対する処理水の比抵抗率(KMΩ・
m)の変化を示すグラフ
FIG. 2 shows the specific resistivity (KMΩ ··) of treated water with respect to the elapsed days of water passage obtained in Examples 1 and 2 and Comparative Examples 1 and 2.
Graph showing change in m)
【図3】実施例3及び4並びに比較例1及び2で得られ
た通水経過日数に対する処理水の比抵抗率(KMΩ・
m)の変化を示すグラフ
FIG. 3 shows the specific resistance (KMΩ ··) of treated water with respect to the elapsed days of water passage obtained in Examples 3 and 4 and Comparative Examples 1 and 2.
Graph showing change in m)
【図4】実施例5及び6並びに比較例1及び2で得られ
た通水経過日数に対する処理水の比抵抗率(KMΩ・m
K)の変化を示すグラフ
FIG. 4 shows the specific resistivity (KMΩ · m) of treated water with respect to the elapsed days of water passage obtained in Examples 5 and 6 and Comparative Examples 1 and 2.
Graph showing change in K)
【符号の説明】[Explanation of symbols]
1:電気透析槽本体 2:陽極 3:陽極室 4:陰極 5:陰極室 61:陰イオン交換膜 71:陽イオン交換膜 81:脱塩室 91:濃縮室 121:陽極室側流入管 122:陽極室側流出管 123:陰極室側流入管 124:陰極室側流出管 131:脱塩室側流入管 132:脱塩室側流出管 141:濃縮室側流入管 142:濃縮室側流出管 X:陰イオン交換体 Z:イオン交換体の混合物 Y:陽イオン交換体 1: Electrodialysis tank body 2: Anode 3: Anode compartment 4: Cathode 5: Cathode compartment 61: Anion exchange membrane 71: Cation exchange membrane 81: Demineralization compartment 91: Concentration compartment 121: Anode compartment side inlet pipe 122: Anode room side outflow tube 123: Cathode room side inflow tube 124: Cathode room side outflow tube 131: Demineralization room side inflow tube 132: Demineralization room side outflow tube 142: Concentration room side inflow tube 142: Concentration room side outflow tube X : Anion exchanger Z: mixture of ion exchangers Y: cation exchanger
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平川 圭一郎 神奈川県横浜市青葉区鴨志田町1000番地 日本錬水株式会社研究所内 Fターム(参考) 4D006 GA17 HA41 HA44 HA47 HA77 JA30Z JA41Z JA43Z JA44Z KA26 KB01 MA03 MA13 MA14 PA01 PB02 PC04 4D061 DA02 DB13 EA02 EA09 EB04 EB13 FA08 FA13  ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Keiichiro Hirakawa 1000 Kamoshita-cho, Aoba-ku, Yokohama-shi, Kanagawa Prefecture F-term (reference) 4D006 GA17 HA41 HA44 HA47 HA77 JA30Z JA41Z JA43Z JA44Z KA26 KB01 MA03 MA13 MA14 PA01 PB02 PC04 4D061 DA02 DB13 EA02 EA09 EB04 EB13 FA08 FA13

Claims (2)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 陽極を備えた陽極室と陰極を備えた陰極
    室との間に陰イオン交換膜および陽イオン交換膜を交互
    に配列して順次形成される複数組の脱塩室および濃縮室
    から構成され、脱塩室には陽イオン交換体および陰イオ
    ン交換体の混合物が収容されて成る電気再生式純水製造
    装置であって、上記のイオン交換体の混合物と陰イオン
    交換膜との間には単独の陰イオン交換体を収容し、上記
    のイオン交換体の混合物と陽イオン交換膜との間には単
    独の陽イオン交換体を収容して成ることを特徴とする電
    気再生式純水製造装置。
    1. A plurality of sets of a desalting chamber and a concentrating chamber which are sequentially formed by alternately arranging an anion exchange membrane and a cation exchange membrane between an anode chamber having an anode and a cathode chamber having a cathode. Wherein the desalination chamber contains a mixture of a cation exchanger and an anion exchanger, and is a regenerated pure water producing apparatus, wherein the mixture of the above-mentioned ion exchanger and an anion exchange membrane are A single anion exchanger is accommodated between the mixture, and a single cation exchanger is accommodated between the mixture of the ion exchanger and the cation exchange membrane. Water production equipment.
  2. 【請求項2】 濃縮室および/または電極室に陽イオン
    交換体および陰イオン交換体の混合物を収容して成る請
    求項1に記載の装置。
    2. The apparatus according to claim 1, wherein the concentration chamber and / or the electrode chamber contain a mixture of a cation exchanger and an anion exchanger.
JP2001158968A 2001-05-28 2001-05-28 Electric regeneration type pure water production apparatus Withdrawn JP2002346568A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001158968A JP2002346568A (en) 2001-05-28 2001-05-28 Electric regeneration type pure water production apparatus

Publications (1)

Publication Number Publication Date
JP2002346568A true JP2002346568A (en) 2002-12-03

Family

ID=19002621

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2002346568A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101928054A (en) * 2010-09-03 2010-12-29 上海港申化工有限公司 Production equipment for purified water
CN103112931A (en) * 2013-02-26 2013-05-22 吴英 Electric ion replacement processing device for reducing liquid conductivity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101928054A (en) * 2010-09-03 2010-12-29 上海港申化工有限公司 Production equipment for purified water
CN103112931A (en) * 2013-02-26 2013-05-22 吴英 Electric ion replacement processing device for reducing liquid conductivity

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