JPH0725278Y2 - Electric regeneration type deionized water production equipment - Google Patents
Electric regeneration type deionized water production equipmentInfo
- Publication number
- JPH0725278Y2 JPH0725278Y2 JP11794689U JP11794689U JPH0725278Y2 JP H0725278 Y2 JPH0725278 Y2 JP H0725278Y2 JP 11794689 U JP11794689 U JP 11794689U JP 11794689 U JP11794689 U JP 11794689U JP H0725278 Y2 JPH0725278 Y2 JP H0725278Y2
- Authority
- JP
- Japan
- Prior art keywords
- exchange resin
- anion
- deionized water
- ion
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 67
- 239000008367 deionised water Substances 0.000 title claims description 16
- 229910021641 deionized water Inorganic materials 0.000 title claims description 16
- 238000011069 regeneration method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 230000008929 regeneration Effects 0.000 title claims description 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 30
- 238000002242 deionisation method Methods 0.000 claims description 23
- 239000003456 ion exchange resin Substances 0.000 claims description 17
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 17
- 239000003957 anion exchange resin Substances 0.000 claims description 13
- 239000003729 cation exchange resin Substances 0.000 claims description 13
- 238000005341 cation exchange Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 11
- 239000003011 anion exchange membrane Substances 0.000 claims description 9
- 150000001450 anions Chemical class 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- 230000001172 regenerating effect Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は樹脂再生用の薬品を用いない電気再生式の脱イ
オン水製造装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of an electrically regenerative deionized water producing apparatus that does not use a chemical for regenerating resin.
カチオン交換樹脂に水素イオンを保持させておいて、被
処理水中に含まれている他の陽イオン、たとえばナトリ
ウムイオンやカルシウムイオンやマグネシウムイオンと
入れ替わりに水素イオンを出させると共に、アニオン交
換樹脂に水酸イオンを保持させておいて、被処理水中の
他の陰イオン、たとえば塩化物イオンや重炭酸イオンや
硫酸イオンなどと入れ替わりに水酸イオンを出させる作
用をなすイオン交換樹脂は、不純物イオンが飽和状態と
なると、それ以上イオン交換を行わなくなるため、再生
する必要が生ずる。While holding hydrogen ions in the cation exchange resin, hydrogen ions are generated by replacing other cations contained in the water to be treated, such as sodium ions, calcium ions, and magnesium ions. Impurity ions are retained in the ion exchange resin that retains the acid ions and replaces them with other anions in the water to be treated, such as chloride ions, bicarbonate ions and sulfate ions. When it becomes saturated, it is necessary to regenerate it because the ion exchange is no longer performed.
この飽和状態となったイオン交換樹脂の再生方法とし
て、酸やアルカリの薬品を用いる薬品再生法と、薬品を
用いずに直流電流の通電作用によって樹脂に負荷したイ
オンを脱離させる電気再生方法とが知られている。As a method of regenerating the ion exchange resin in a saturated state, a chemical regenerating method using an acid or alkali chemical, and an electric regenerating method of desorbing ions loaded on the resin by the action of passing a direct current without using a chemical are used. It has been known.
このうち本考案が対象とするのは、後者の電気再生式の
脱イオン水製造装置であって、第３図は従来型の電気再
生式脱イオン水製造装置の概略を示す。Of these, the present invention is directed to the latter electric regeneration type deionized water producing apparatus, and FIG. 3 shows the outline of a conventional electric regeneration type deionized water producing apparatus.
図中20はアニオン交換膜21とカチオン交換膜22の間に形
成される処理室内に、カチオン交換樹脂とアニオン交換
樹脂との混合イオン交換樹脂23を充填してなる脱イオン
モジュール、24はこの脱イオンモジュール20の複数枚を
連通状態にして並列させ、そのアニオン交換膜21側にカ
チオン交換膜22を介して付設した陽電極、25は前記同様
脱イオンモジュール20のカチオン交換膜22側に付設した
陰電極を示し、被処理水は抑え板26に設けた被処理水入
口部27より第一段目の脱イオンモジュール20の処理室内
に入り、イオン交換されて順次後段の脱イオンモジュー
ル20を通って、白丸付矢印で示す方向で抑え板26に設け
た処理水出口部28より処理水として系外の各種用途先に
送られていく。In the figure, 20 is a deionization module in which a treatment chamber formed between an anion exchange membrane 21 and a cation exchange membrane 22 is filled with a mixed ion exchange resin 23 of a cation exchange resin and an anion exchange resin, and 24 is a deionization module. A plurality of ion modules 20 are placed in communication with each other and arranged in parallel, and the positive electrode is attached to the anion exchange membrane 21 side via the cation exchange membrane 22, and 25 is attached to the cation exchange membrane 22 side of the deionization module 20 as described above. A negative electrode is shown, and the water to be treated enters the treatment chamber of the first-stage deionization module 20 through the treatment-water inlet 27 provided on the restraining plate 26, and is ion-exchanged to sequentially pass through the deionization module 20 at the subsequent stage. Then, the treated water is sent from the treated water outlet 28 provided on the restraining plate 26 to the various destinations outside the system in a direction indicated by an arrow with a white circle.
その際、陽電極24と陰電極25の間に直流電流を通ずる
と、混合イオン交換樹脂23に吸着された不純物イオン中
の陽イオンは陰電極25に引かれて各カチオン交換膜22を
透過すると共に、陰イオンは陽電極24に引かれて各アニ
オン交換膜21を透過し、濃縮水通路31を通流する濃縮水
と一緒になって黒丸付矢印で示す方向に流れ、抑え板26
に設けた濃縮水出口部32より系外に排出されていくもの
である。At that time, when a direct current is passed between the positive electrode 24 and the negative electrode 25, the cations in the impurity ions adsorbed by the mixed ion exchange resin 23 are attracted to the negative electrode 25 and permeate each cation exchange membrane 22. At the same time, the anions are drawn by the positive electrode 24 and permeate each anion exchange membrane 21, and together with the concentrated water flowing through the concentrated water passage 31, flow in the direction indicated by the arrow with a black circle, and the restraining plate 26
It is discharged to the outside of the system from the concentrated water outlet 32 provided in the.
なお、両電極に隣接する電極水通路29に入った不純物イ
オンは、三角付矢印で示す方向に電極水と一緒になって
流れて電極水出口部30より系外に排出される。The impurity ions that have entered the electrode water passages 29 adjacent to both electrodes flow together with the electrode water in the direction indicated by the arrow with triangles and are discharged from the electrode water outlet 30 to the outside of the system.
このような脱イオンモジュールの両側に配設した電極間
に直流電流を通ずるようになした脱イオン水製造装置に
よった場合は、酸やアルカリ等の再生用薬品を使用する
必要がないので、薬品再生法に伴う諸種の不具合点を解
消することができるのであるが、前記した従来型の電気
再生式脱イオン水製造装置の場合は、本考案者らの実験
したところによると、第２図に示すように処理開始後約
３時間経過時点で5.7MΩ・cm（比抵抗）の値を示すもの
の、24時間経過すると2.6〜3.0MΩ・cm程度に低下して
しまい、以後この状態が続いて用途先で強い要望のある
10MΩ・cm以上の値を得ることは従来型装置では到底で
きないことが判明した。In the case of the deionized water production apparatus configured to pass a direct current between the electrodes arranged on both sides of such a deionization module, it is not necessary to use a regenerating chemical such as acid or alkali, Although various inconveniences associated with the chemical regeneration method can be solved, in the case of the conventional electric regeneration type deionized water producing apparatus described above, according to the experiments conducted by the present inventors, FIG. As shown in, the value of 5.7MΩ ・ cm (resistivity) is shown about 3 hours after the start of the treatment, but after 24 hours, it decreases to about 2.6 to 3.0MΩ ・ cm, and this state continues after that. There is a strong demand at the destination
It has been found that it is impossible to obtain a value of 10 MΩ · cm or more with conventional equipment.
そこで、本考案者らは電気再生式脱イオン水製造装置の
処理水純度を向上させるべく種々研究した結果、脱イオ
ンモジュールの処理室内に充填するイオン交換樹脂を、
従来のように混合して使用していたのを改め、カチオン
交換樹脂とアニオン交換樹脂とに分離し、カチオン交換
樹脂とアニオン交換樹脂を対にして交互に処理室内に充
填するようにすると処理水純度が飛躍的に向上すること
を見出し本考案を完成するに到ったものである。Therefore, as a result of various studies by the present inventors to improve the purity of the treated water of the electric regeneration type deionized water manufacturing device, as a result, the ion exchange resin filled in the treatment chamber of the deionization module was
If the cation exchange resin and the anion exchange resin are separated and the cation exchange resin and the anion exchange resin are paired and alternately filled in the treatment chamber, the treated water is treated again. The inventors have found that the purity is dramatically improved and have completed the present invention.
従って、本考案の目的は薬品再生法に伴う不具合点を解
消することのできる電気再生式の脱イオン水製造装置の
処理水純度を向上させ、各種用途先の要求に充分応じ得
る電気再生式脱イオン水製造装置を提供することにあ
る。Therefore, an object of the present invention is to improve the purity of treated water in an electric regeneration type deionized water production apparatus capable of solving the problems associated with the chemical regeneration method, and to sufficiently meet the requirements of various application destinations. An object is to provide an ion water production device.
上記目的を達成するための本考案の構成を詳述すれば、
アニオン交換膜とカチオン交換膜の間に形成される処理
室内にイオン交換樹脂を充填してなる脱イオンモジュー
ルの複数枚を連通状態にして並列させ、その両側に陽電
極と陰電極を配設し、両電極間に直流電流を通ずること
により処理室内のイオン交換樹脂を連続的に再生するよ
うになした電気再生式の脱イオン水製造装置において、
前記各モジュールの処理室内に充填するイオン交換樹脂
を、カチオン交換樹脂とアニオン交換樹脂とに分離し、
カチオン交換樹脂とアニオン交換樹脂を対にして交互に
処理室内に充填するようにしたことを特徴とする電気再
生式脱イオン水製造装置であり、本考案者らによる実験
の結果、処理開始後約９時間経過時点で10.8MΩ・cmに
達し、その状態が以後も断続することが確認された。な
お、このようにイオン交換樹脂を、カチオン交換樹脂と
アニオン交換樹脂とに分離し、脱イオンモジュールの処
理室内にゼブラ状に充填することによって処理水純度が
向上したのは、従来の混合イオン交換樹脂を用いるもの
と異なり、脱離したイオンの方向性が一定となって移動
に要する距離と時間が短縮されるためと考えられる。The configuration of the present invention for achieving the above object will be described in detail below.
A plurality of deionization modules filled with ion-exchange resin in the processing chamber formed between the anion-exchange membrane and the cation-exchange membrane are connected in parallel, and a positive electrode and a negative electrode are arranged on both sides. In an electric regeneration type deionized water production apparatus that continuously regenerates the ion exchange resin in the processing chamber by passing a direct current between both electrodes,
The ion exchange resin to be filled in the processing chamber of each module is separated into a cation exchange resin and an anion exchange resin,
It is an electric regenerative deionized water production device characterized in that a cation exchange resin and an anion exchange resin are paired and alternately filled in the treatment chamber. It was confirmed that the value reached 10.8 MΩ · cm after 9 hours, and that the state was intermittent thereafter. By separating the ion-exchange resin into a cation-exchange resin and an anion-exchange resin and filling the deionization module in the treatment chamber in a zebra-like manner, the treated water purity was improved because the conventional mixed ion-exchange resin was used. It is considered that, unlike the case where a resin is used, the directionality of the desorbed ions becomes constant and the distance and time required for movement are shortened.
以下、本考案装置の具体的構成を図示の実施例に基づき
詳細に説明する。Hereinafter, a specific configuration of the device of the present invention will be described in detail with reference to the illustrated embodiment.
第１図は本考案脱イオン水製造装置の一実施例を示す概
略図、第２図は本考案装置と従来装置によった場合の処
理水の比抵抗（ＭΩ・cm）の違いを示すグラフである。FIG. 1 is a schematic view showing an embodiment of the deionized water producing apparatus of the present invention, and FIG. 2 is a graph showing the difference in the specific resistance (MΩ · cm) of treated water between the apparatus of the present invention and the conventional apparatus. Is.
図中１はアニオン交換膜２とカチオン交換膜３の間に形
成した処理室内にカチオン交換樹脂16とアニオン交換樹
脂17を分離した状態で充填してなる脱イオンモジュール
を示し、４は連通状態にして並列させた脱イオンモジュ
ール１の複数枚を外側から抑え付ける抑え板を示す。５
は脱イオンモジュール１同志の間に形成した濃縮水通
路、６は前記連通状態にして並列させた複数枚の脱イオ
ンモジュール1,1・・・のアニオン交換膜２側にカチオ
ン交換膜３を介して付設した陽電極、７はカチオン交換
膜３側に付設した陰電極を示す。８は被処理水の供給源
を示し、９は被処理水入口部、10は濃縮水入口部、11は
電極水入口部、12は処理水出口部、13は濃縮水出口部、
14は電極水出口部で、これら入口部9,10,11及び出口部1
2,13,14はいずれも前記抑え板４に設けられている。In the figure, 1 denotes a deionization module in which a cation exchange resin 16 and an anion exchange resin 17 are separately filled in a processing chamber formed between an anion exchange membrane 2 and a cation exchange membrane 3, and 4 is a communication state. 1 shows a pressing plate for pressing a plurality of deionization modules 1 arranged in parallel from the outside. 5
Is a concentrated water passage formed between the deionization modules 1 and 6 is a cation exchange membrane 3 on the side of the anion exchange membrane 2 of a plurality of deionization modules 1, 1 ... And a negative electrode 7 attached to the side of the cation exchange membrane 3. Reference numeral 8 denotes a source of treated water, 9 is an inlet for treated water, 10 is an inlet for concentrated water, 11 is an inlet for electrode water, 12 is an outlet for treated water, 13 is an outlet for concentrated water,
14 is an electrode water outlet, and these inlets 9, 10, 11 and outlet 1
2, 13, 14 are all provided on the pressing plate 4.
なお、図中に示された白丸付矢印は処理水の流れ、黒丸
付矢印は濃縮水の流れ、三角付矢印は電極水の流れをそ
れぞれ示すものである。The arrows with white circles in the figure show the flow of treated water, the arrows with black circles show the flow of concentrated water, and the arrows with triangles show the flow of electrode water.
供給源８から供給される被処理水は、被処理水入口部９
から第一段目の脱イオンモジュール１内に入り、イオン
交換樹脂によってイオン交換されながら、第二段目の脱
イオンモジュール１内に入り、順次イオン交換樹脂層を
通流して脱イオン処理され、処理水出口部12より流出す
る処理水は各種用途先に送られる。そして、その過程で
陽電極６と陰電極７の間に直流電流を通ずると、イオン
交換樹脂に吸着された陽イオンは陰電極７に引かれて各
カチオン交換膜３を透過すると共に、陰イオンは陽電極
６に引かれて各アニオン交換膜２を透過し、濃縮水通路
５を通流する濃縮水と一緒になって濃縮水出口部13より
系外に排出される。一方、両電極に隣接する電極水通路
15に入った不純物イオンは、電極水と一緒になって電極
水出口部14より系外に排出される。The treated water supplied from the supply source 8 is the treated water inlet 9
Into the first-stage deionization module 1, and while being ion-exchanged by the ion-exchange resin, enters into the second-stage deionization module 1 and sequentially flows through the ion-exchange resin layer for deionization treatment, The treated water flowing out from the treated water outlet 12 is sent to various destinations. Then, when a direct current is passed between the positive electrode 6 and the negative electrode 7 in the process, the cations adsorbed on the ion exchange resin are attracted to the negative electrode 7 and permeate through each cation exchange membrane 3, Is drawn by the positive electrode 6, permeates each anion exchange membrane 2, and is discharged from the system through the concentrated water outlet 13 together with the concentrated water flowing through the concentrated water passage 5. On the other hand, the electrode water passage adjacent to both electrodes
The impurity ions that have entered 15 are discharged from the system through the electrode water outlet 14 together with the electrode water.
本考案はこのような構造の脱イオン水製造装置におい
て、前記各脱イオンモジュール１の処理室内に充填する
イオン交換樹脂を、カチオン交換樹脂16と、アニオン交
換樹脂17とに分離し、カチオン交換樹脂16とアニオン交
換樹脂17を対にして交互に脱イオンモジュール１の処理
室内に充填したことを特徴とするものである。In the deionized water production apparatus having such a structure, the present invention separates the ion exchange resin filling the processing chamber of each of the deionization modules 1 into a cation exchange resin 16 and an anion exchange resin 17, 16 and anion exchange resin 17 are paired and alternately filled in the processing chamber of the deionization module 1.
なお、図示する実施例では各モジュール１内に４段の層
状をなすようにカチオン交換樹脂16とアニオン交換樹脂
17を交互に充填してなるが、これを２段あるいは６段に
形成するようにしてもよいものである。また、図示の実
施例では脱イオンモジュール１を４枚並列させている
が、これを２枚としてもよいし、あるいは４枚以上、た
とえば６枚としてもよいのは勿論である。In the illustrated embodiment, each module 1 has four layers of cation exchange resin 16 and anion exchange resin so as to form a layered structure.
Although 17 are alternately filled, they may be formed in two steps or six steps. Further, although four deionization modules 1 are arranged in parallel in the illustrated embodiment, it is of course possible to use two deionization modules 1 or four deionization modules 1 or more, for example, six.
本考案者らによる実験の結果、第２図に示すように処理
開始後約９時間経過時点で処理水出口部12における比抵
抗は10.8MΩ・cmに達し、以後もこの状態が断続するこ
とが確認された。As a result of an experiment by the present inventors, as shown in FIG. 2, the specific resistance at the treated water outlet 12 reaches 10.8 MΩ · cm about 9 hours after the start of treatment, and this state may be intermittent thereafter. confirmed.
従って、本考案によれば薬品再生法に伴う不具合点を解
消できるのは云うまでもなく、処理水純度が従来型のも
のより飛躍的に向上し、各種用途先の要求に充分応じ得
る電気再生式脱イオン水製造装置を提供することができ
るものである。Therefore, according to the present invention, it goes without saying that the problems associated with the chemical regeneration method can be solved, and the purity of treated water is dramatically improved as compared with the conventional type, and electric regeneration that can sufficiently meet the requirements of various application destinations. A deionized water producing apparatus can be provided.
第１図は本考案脱イオン水製造装置の一実施例を示す概
略図、第２図は本考案装置と従来装置によった場合の処
理水の比抵抗（ＭΩ・cm）の違いを示すグラフ、第３図
は従来の電気再生式脱イオン水製造装置の一例を示す概
略図である。 1:脱イオンモジュール、2:アニオン交換膜 3:カチオン交換膜、4:抑え板 5:濃縮水通路、6:陽電極 7:陰電極、8:供給源 9:被処理水入口部、10:濃縮水入口部 11:電極水入口部、12:処理水出口部 13:濃縮水出口部、14:電極水出口部 15:電極水通路 16:カチオン交換樹脂 17:アニオン交換樹脂FIG. 1 is a schematic view showing an embodiment of the deionized water producing apparatus of the present invention, and FIG. 2 is a graph showing the difference in the specific resistance (MΩ · cm) of treated water between the apparatus of the present invention and the conventional apparatus. FIG. 3 is a schematic view showing an example of a conventional electric regeneration type deionized water producing apparatus. 1: Deionization module, 2: Anion exchange membrane 3: Cation exchange membrane, 4: Suppression plate 5: Concentrated water passage, 6: Positive electrode 7: Negative electrode, 8: Supply source 9: Treated water inlet part, 10: Concentrated water inlet 11: Electrode water inlet, 12: Treated water outlet 13: Concentrated water outlet, 14: Electrode water outlet 15: Electrode water passage 16: Cation exchange resin 17: Anion exchange resin
Claims (1)
成される処理室内にイオン交換樹脂を充填してなる脱イ
オンモジュールの複数枚を連通状態にして並列させ、そ
の両側に陽電極と陰電極を配設し、両電極間に直流電流
を通ずることにより処理室内のイオン交換樹脂を連続的
に再生するようになした電気再生式の脱イオン水製造装
置において、前記各モジュールの処理室内に充填するイ
オン交換樹脂を、カチオン交換樹脂とアニオン交換樹脂
とに分離し、カチオン交換樹脂とアニオン交換樹脂を対
にして交互に処理室内に充填するようにしたことを特徴
とする電気再生式脱イオン水製造装置。1. A plurality of deionization modules each having an ion exchange resin filled in a processing chamber formed between an anion exchange membrane and a cation exchange membrane are placed in a communication state and arranged in parallel, and a positive electrode and an anion are provided on both sides thereof. In an electric regeneration type deionized water production apparatus in which electrodes are arranged and a DC current is passed between both electrodes to continuously regenerate the ion exchange resin in the treatment chamber The ion-exchange resin to be filled is separated into a cation-exchange resin and an anion-exchange resin, and the cation-exchange resin and the anion-exchange resin are paired and alternately filled in the processing chamber. Water production equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11794689U JPH0725278Y2 (en) | 1989-10-09 | 1989-10-09 | Electric regeneration type deionized water production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11794689U JPH0725278Y2 (en) | 1989-10-09 | 1989-10-09 | Electric regeneration type deionized water production equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0359091U JPH0359091U (en) | 1991-06-10 |
| JPH0725278Y2 true JPH0725278Y2 (en) | 1995-06-07 |
Family
ID=31666141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11794689U Expired - Lifetime JPH0725278Y2 (en) | 1989-10-09 | 1989-10-09 | Electric regeneration type deionized water production equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725278Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284643B1 (en) * | 2012-04-12 | 2013-07-11 | 충남대학교산학협력단 | Electrolytic cell for flow throuth-continuous deionization |
-
1989
- 1989-10-09 JP JP11794689U patent/JPH0725278Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284643B1 (en) * | 2012-04-12 | 2013-07-11 | 충남대학교산학협력단 | Electrolytic cell for flow throuth-continuous deionization |
| WO2013154221A1 (en) * | 2012-04-12 | 2013-10-17 | 충남대학교산학협력단 | Electrolytic cell for ft-cdi |
| US9096941B2 (en) | 2012-04-12 | 2015-08-04 | The Industry & Academic Cooperation In Chungnam National University | Electrolytic cell for flow through-continuous deionization |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0359091U (en) | 1991-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4065664B2 (en) | Electric desalination equipment | |
| US2794777A (en) | Electrolytic deionization | |
| US9637400B2 (en) | Systems and methods for water treatment | |
| JP2865389B2 (en) | Electric deionized water production equipment and frame used for it | |
| CN103269777B (en) | Electrodeionization apparatus and method with improved scale inhibition | |
| TWI701218B (en) | Water treatment device and water treatment method | |
| JPH0757308B2 (en) | Electrodialysis tank | |
| JP3273707B2 (en) | Production method of deionized water by electrodeionization method | |
| WO1997046491A1 (en) | Process for producing deionized water by electrical deionization technique | |
| JP3512425B2 (en) | Electrochemical treatment of ion exchange materials | |
| JPH08150393A (en) | Production of deionized water by electrolytic deionization method | |
| JP4609924B2 (en) | Electric deionized water production equipment | |
| TWI517896B (en) | Electric deionized water manufacturing device | |
| JPH0725278Y2 (en) | Electric regeneration type deionized water production equipment | |
| JP5114307B2 (en) | Electric deionized water production equipment | |
| JP3729349B2 (en) | Electric regenerative desalination equipment | |
| JP6752932B2 (en) | Water treatment equipment and water treatment method | |
| JP3729347B2 (en) | Electric regenerative desalination equipment | |
| JP2002205071A (en) | Electric deionized water manufacturing apparatus and method of manufacturing deionized water | |
| JP2000061271A (en) | Pure water production and device therefor | |
| JP3729348B2 (en) | Electric regenerative desalination equipment | |
| JPH05277344A (en) | Electrodialysis machine | |
| US8529759B2 (en) | Electric deionized water production apparatus | |
| JP3726449B2 (en) | Electric deionized water production equipment | |
| JP2001321773A (en) | Apparatus and method for making electro-deionized water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |