JPS63158104A - Desalting equipment by electrodialysis method - Google Patents
Desalting equipment by electrodialysis methodInfo
- Publication number
- JPS63158104A JPS63158104A JP30579986A JP30579986A JPS63158104A JP S63158104 A JPS63158104 A JP S63158104A JP 30579986 A JP30579986 A JP 30579986A JP 30579986 A JP30579986 A JP 30579986A JP S63158104 A JPS63158104 A JP S63158104A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- electrodialysis
- water
- fresh water
- fed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title abstract description 7
- 238000011033 desalting Methods 0.000 title abstract 3
- 239000013505 freshwater Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 14
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 23
- 238000010612 desalination reaction Methods 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 39
- 239000005708 Sodium hypochlorite Substances 0.000 abstract description 14
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract description 14
- 239000000460 chlorine Substances 0.000 abstract description 13
- 229910052801 chlorine Inorganic materials 0.000 abstract description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 12
- 230000001954 sterilising effect Effects 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000000502 dialysis Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 chlorine ions Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電気透析法淡水化装置に係り、特に該装置に
より発生する塩素で、該装置により生成された淡水を殺
菌処理する淡水造水装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electrodialysis desalination device, and particularly to a freshwater desalination device that sterilizes fresh water produced by the device using chlorine generated by the device. Regarding equipment.
電気透析法淡水化装置は、原水に微生物を有する溶液を
用いる場合、透析処理過程においてこの微生物が死滅し
ないため生成淡水にはこの微生物が含まれる。このため
この生成淡水を飲料水として用いる場合は殺菌処理が必
要であり、従来の電気透析法淡水化装置は、第３図に示
すように次亜塩素酸ソーダを注入し、生成淡水を殺菌す
る方法を採用しているが、この方法では次亜塩素酸ソー
ダ供給装置を淡水化装置に追加して設ける必要がありコ
スト高になるという欠点を有していた。以下第、３図を
用いて従来装置を説明する。なお、第３図は回分処理方
式の電気透析法淡水化装置を示すが、本発明は処理方式
に関係なくいずれの処理方式についても適用できる。When an electrodialysis desalination device uses a solution containing microorganisms in raw water, the microorganisms are not killed during the dialysis treatment process, so the produced fresh water contains the microorganisms. Therefore, if this produced fresh water is to be used as drinking water, sterilization treatment is required, and conventional electrodialysis desalination equipment injects sodium hypochlorite to sterilize the produced fresh water, as shown in Figure 3. However, this method had the disadvantage of requiring a sodium hypochlorite supply device to be added to the desalination device, resulting in high costs. The conventional device will be explained below with reference to FIG. Although FIG. 3 shows a batch treatment type electrodialysis desalination apparatus, the present invention can be applied to any treatment method regardless of the treatment method.
第３図は従来の電気透析法淡水化装置のフローを示し、
その構成機器は、陽極室２３を有する電気透析槽１１．
循環タンク１２、濃縮水タンク１３、取水ポンプ１４１
．循環ポンプ１５、濃縮水循環ポンプ１６．淡水タンク
１８、次亜塩素酸ソ−ダタンク４１および次亜塩素酸ソ
ーダポンプ４３等からなる次亜塩素酸ソーダ注入装置４
０から構成される装
置
水１９は脱塩水用と濃縮水用に分けられ、それぞれ循環
タンク１２、濃縮水循環タンク１３へ供給される。循環
タンク１２に供給された原水は電気透析槽１１、循環タ
ンク１２、循環ポンプ１５で形成される循環ラインを循
環し脱塩されて淡水２２となる。濃縮水タンク１３に供
給された原水は電気透析槽１１、濃縮水タンク１３、濃
縮水循環ポンプ１６により形成される濃縮水循環ライン
を循環して濃縮される。Figure 3 shows the flow of a conventional electrodialysis desalination device.
Its components include an electrodialysis tank 11 having an anode chamber 23.
Circulation tank 12, concentrated water tank 13, water intake pump 141
．． Circulation pump 15, concentrated water circulation pump 16. Sodium hypochlorite injection device 4 consisting of a freshwater tank 18, a sodium hypochlorite tank 41, a sodium hypochlorite pump 43, etc.
The device water 19 made up of water is divided into desalinated water and concentrated water, and is supplied to the circulation tank 12 and concentrated water circulation tank 13, respectively. The raw water supplied to the circulation tank 12 is circulated through a circulation line formed by the electrodialysis tank 11, the circulation tank 12, and the circulation pump 15, and is desalinated to become fresh water 22. The raw water supplied to the concentrated water tank 13 is concentrated by circulating through a concentrated water circulation line formed by the electrodialysis tank 11, the concentrated water tank 13, and the concentrated water circulation pump 16.
生成された淡水２２には，微生物を殺菌するため次亜塩
素酸ソーダ注入装置４０により次亜塩素酸ソーダが注入
される。Sodium hypochlorite is injected into the generated fresh water 22 by a sodium hypochlorite injection device 40 in order to sterilize microorganisms.
上記従来技術は、電気透析法淡水化装置によって生成し
た淡水を殺菌処理するために次亜塩素酸ソーダ注入装置
を備えており、このた・め電気透析法淡水化装置が複雑
となり、コス１も上昇し、しかも電気透析槽１１の陽極
室２３において生成する塩素ガスは有効に利用されず捨
てられていた。The above-mentioned conventional technology is equipped with a sodium hypochlorite injection device to sterilize the fresh water produced by the electrodialysis desalination device, which makes the electrodialysis desalination device complicated and reduces the cost. The chlorine gas that rises and is generated in the anode chamber 23 of the electrodialyzer 11 is not effectively used and is thrown away.
本発明の目的は、電気透析槽１１の陽極室２３において
発生する塩素ガスで，前記電気透析槽１１によって生成
した淡水２２を殺菌処理することにより、従来電気透析
法談水化装置に別個に設けられている次亜塩酸ソーダ注
入装置４０を不用とし、経済的な電気透析法淡水化装置
を提供することにある。An object of the present invention is to sterilize the fresh water 22 produced by the electrodialysis tank 11 using chlorine gas generated in the anode chamber 23 of the electrodialysis tank 11, thereby eliminating the need for a separate installation in the conventional electrodialysis water conversion equipment. The objective of the present invention is to provide an economical electrodialysis desalination device that eliminates the need for the conventional sodium hypochlorite injection device 40.
上記問題点は、陽極室を有する電気透析槽により電気透
析を行う電気透析法淡水化装置において、前記陽極室で
生成する陽極液を気液分離する気液分′離器と、該気液
分離器により分離された塩素ガスを前記電気透析槽によ
り生成された淡水に注入する塩素注入装置を備えること
により解決される。In an electrodialysis desalination apparatus that performs electrodialysis using an electrodialysis tank having an anode chamber, the above problem is caused by a gas-liquid separator that separates the anolyte produced in the anode chamber into gas and liquid, and a gas-liquid separator that separates the anolyte produced in the anode chamber. This problem is solved by providing a chlorine injection device for injecting chlorine gas separated by the electrodialysis tank into the fresh water produced by the electrodialysis tank.
塩素イオンを含む原水は電気透析槽の陽極室において、
塩素イオン２ＣＱ−が電子２ｅ−を放出して塩素ガスＣ
Ω２を生成し、この塩素ガスＣＱ，は一部が陽極液に溶
けるが、残りは気泡状態にある。Raw water containing chlorine ions is stored in the anode chamber of the electrodialysis tank.
Chlorine ion 2CQ- releases electron 2e- to form chlorine gas C
A part of this chlorine gas CQ, dissolves in the anolyte, but the rest remains in the form of bubbles.
この陽極液を気液分離器を通すと塩素ガスを分離できる
ので、この塩素ガスを注入装置により電気透析槽によっ
て生成された淡水に注入して殺菌処理する。When this anolyte is passed through a gas-liquid separator, chlorine gas can be separated, so this chlorine gas is injected into the fresh water produced by the electrodialysis tank using an injection device for sterilization treatment.
以下本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
第１図は本発明による電気透析法淡水化装置のフローを
示し、本装置は、原水１９をくみ上げる取水ポンプ，原
水１９を循環して脱塩する電気透析槽１１、循環する溶
液を受ける循環タンク１２およびこの溶液を循環する循
環ポンプ１５、電気透析槽１１の陽極室２３で生成する
陽極液より塩素ガスを分離する気液分離器１７、気液分
離器１７で分離された塩素ガス２７を調整して生成した
淡水に注入する流量調整弁２９および淡水の塩素濃度を
計測する塩素濃度計２８よりなる塩素ガス注入装置３０
、淡水タンク１８，濃縮水循環タンク１３、濃縮水循環
ポンプ１６等から植成される。FIG. 1 shows the flow of an electrodialysis desalination apparatus according to the present invention, which includes a water intake pump that pumps raw water 19, an electrodialysis tank 11 that circulates and desalinates the raw water 19, and a circulation tank that receives the circulating solution. 12, a circulation pump 15 that circulates this solution, a gas-liquid separator 17 that separates chlorine gas from the anolyte produced in the anode chamber 23 of the electrodialysis tank 11, and a gas-liquid separator 17 that adjusts the chlorine gas 27 separated by the gas-liquid separator 17. A chlorine gas injection device 30 consisting of a flow rate adjustment valve 29 for injecting fresh water into the fresh water produced by the process and a chlorine concentration meter 28 for measuring the chlorine concentration of the fresh water.
, a freshwater tank 18, a concentrated water circulation tank 13, a concentrated water circulation pump 16, etc.
本装置の動作について説明すると、くみ上げられた原水
１９は、従来装置と同様に、脱塩水用と濃縮水用に分け
られ，それぞれ循環タンク１２、濃縮水循環タンク１３
へ供給される。循環タンク１２に供給された原水１９は
、循環ポンプ１５により電気透析槽１１を循環して脱塩
され、淡水２２となり淡水タンク１８へ送られる。一方
濃縮水タンク１３に供給された原水は、濃縮水循環ポン
プ１６により吸引され、更に、陽極液２５、濃縮水２１
、陰極液２６に分けられ、それぞれ電気、透析槽１１の
陽極室２３、濃縮室、陰極室２４へ供給される。濃縮水
２１は電気透析槽１１を循環して濃縮され、陽極液２５
は陽極室２３へ入り、気液分離器１７で塩素ガス２７を
分離した後外部へ排出され、陰極液２６は陰極室２４と
濃縮水循環タンク１３の間を循環する。To explain the operation of this device, the pumped raw water 19 is divided into desalinated water and concentrated water, as in the conventional device, and a circulation tank 12 and a concentrated water circulation tank 13, respectively.
supplied to The raw water 19 supplied to the circulation tank 12 is circulated through the electrodialysis tank 11 by the circulation pump 15 to be desalinated, becomes fresh water 22, and is sent to the fresh water tank 18. On the other hand, the raw water supplied to the concentrated water tank 13 is sucked by the concentrated water circulation pump 16, and is further supplied to the anolyte 25 and the concentrated water 21.
, catholyte 26, and electricity is supplied to the anode chamber 23, concentration chamber, and cathode chamber 24 of the dialysis tank 11, respectively. The concentrated water 21 is circulated through the electrodialysis tank 11 and concentrated, and the anolyte 25
enters the anode chamber 23, separates chlorine gas 27 in the gas-liquid separator 17, and then discharges it to the outside, and the catholyte 26 circulates between the cathode chamber 24 and the concentrated water circulation tank 13.
気液分雅器１７で陽極液２５中に含まれた塩素ガス２７
は分離され塩素ガス注入装置３０により、生成淡水２２
へ供給される。塩素ガス２７の供給量は淡水２２中の塩
素ガス濃度を塩素濃度計２８によって検出し、適量の塩
素ガス２７を流量調整弁２９によって調整する。なお気
液分離器１７は上部にガス室を有するシェル構造である
。Chlorine gas 27 contained in the anolyte 25 in the gas-liquid separator 17
is separated and produced fresh water 22 by the chlorine gas injection device 30.
supplied to The supply amount of chlorine gas 27 is determined by detecting the chlorine gas concentration in fresh water 22 with a chlorine concentration meter 28, and adjusting the appropriate amount of chlorine gas 27 with a flow rate regulating valve 29. Note that the gas-liquid separator 17 has a shell structure with a gas chamber in the upper part.
本実施例によれば、電気透析槽１１の陽極室２３で生成
する塩素ガス２７を生成淡水２２の殺菌に利用できるた
め経済的な電気透析法談水化装置とすることができ、さ
らに従来装置には、殺菌のために次亜塩素酸ソーダおよ
び薬注設備として次亜塩酸ソーダタンク、薬注ポンプ等
からなる次亜塩素酸注入装置が必要であったが、これら
が不用となるという効果がある。According to this embodiment, since the chlorine gas 27 generated in the anode chamber 23 of the electrodialysis tank 11 can be used to sterilize the fresh water 22 produced, it is possible to provide an economical electrodialysis water conversion apparatus, and furthermore, compared to the conventional method. , which required sodium hypochlorite for sterilization and a hypochlorous acid injection device consisting of a sodium hypochlorite tank, chemical injection pump, etc. as chemical injection equipment, but this has the effect of eliminating the need for these. be.
本発明の他の実施例を第２図により説明する。Another embodiment of the present invention will be described with reference to FIG.
第２図は本実施例のフローを示す、第１図に示す実施例
に対して水酸化ナトリウム水溶液タンク３１、水酸化ナ
トリウムポンプ３２、ｐＨ計３４から成る水酸化ナトリ
ウム注入装置３５が淡水２２ラインに追加され、ＰＨ計
３４が淡水２２のｐＨ値を検出し、所定のｐＨ値となる
よう水酸化ナトリウムを注入する１本実施例は、生成淡
水のｐＨ値が７以上１２以下の範囲と６るよう生成淡水
に水酸化ナトリウム等のアルカリ性物質を注入する。こ
れにより生成淡水への塩素ガスの吸収速度を増大させ殺
菌を素早く行なわせる効果がある。FIG. 2 shows the flow of this embodiment. In contrast to the embodiment shown in FIG. In this embodiment, the pH meter 34 detects the pH value of the fresh water 22 and injects sodium hydroxide to reach a predetermined pH value. An alkaline substance such as sodium hydroxide is injected into the fresh water produced. This has the effect of increasing the rate of absorption of chlorine gas into the produced fresh water and speeding up sterilization.
この場合の反応は次に示すように次亜塩素酸ソーダの生
成反応である。従って従来装置で薬注に使用していた次
亜塩素酸ソーダが本電気透析法淡水化装置で生成できる
効果がある。The reaction in this case is a reaction for producing sodium hypochlorite as shown below. Therefore, the present electrodialysis desalination device has the advantage that sodium hypochlorite, which was used for chemical injection in conventional devices, can be produced.
２ＮａＯＨ＋Ｃｆｌ、＝ＮａＯＣＱ＋ＮａＣＱ＋ＨｚＯ
〔発明の効果〕
本発明によれば、電気透析槽の陽極室から発生する塩素
ガスを用いて生成淡水を殺菌できるため１、従来装置に
使用されていた次亜塩素酸ソーダおよび同注入装置が不
用となり、これにより経済的な電″気透析法淡水化装置
を提供できる効果がある。2NaOH+Cfl,=NaOCQ+NaCQ+HzO
[Effects of the Invention] According to the present invention, the produced fresh water can be sterilized using the chlorine gas generated from the anode chamber of the electrodialysis tank. This has the effect of providing an economical electrodialysis desalination apparatus.
第１図は本発明による電気透析法談水化装置の一実施例
を示すフロー図、第２図は本発明による電気透析法談水
化装置の他の実施例を示すフロー図、第３図は従来の電
気透析法談水化装置の一例を示すフロー図である。
１１・・・電気透析槽、 １７・・・気液分離器、２
２・・・淡水、 ２３・・・陽極室、２７・・
・塩素ガス、 ３０・・・塩素ガス注入装置、３５・
・・水酸化ナトリウム注入装置。FIG. 1 is a flow diagram showing one embodiment of the electrodialysis hydration device according to the present invention, FIG. 2 is a flow diagram showing another embodiment of the electrodialysis hydration device according to the present invention, and FIG. 1 is a flow diagram showing an example of a conventional electrodialysis hydration device. 11... Electrodialysis tank, 17... Gas-liquid separator, 2
2...Fresh water, 23...Anode chamber, 27...
・Chlorine gas, 30...Chlorine gas injection device, 35・
...Sodium hydroxide injection device.
Claims (2)
電気透析法淡水化装置において、前記陽極室で生成する
陽極液を気液分離する気液分離器と、該気液分離器によ
り分離された塩素ガスを前記電気透析槽により生成され
た淡水に注入する塩素ガス注入装置を備えたことを特徴
とする電気透析法淡水化装置。(1) In an electrodialysis desalination device that performs electrodialysis using an electrodialysis tank having an anode chamber, a gas-liquid separator separates the anolyte produced in the anode chamber into gas and liquid; An electrodialysis desalination apparatus characterized by comprising a chlorine gas injection device for injecting chlorine gas into the fresh water produced by the electrodialysis tank.
リ性物質を注入するアルカリ性物質注入装置を備えたこ
とを特徴とする特許請求の範囲第１項記載の淡水化装置
。(2) The desalination apparatus according to claim 1, further comprising an alkaline substance injection device for injecting an alkaline substance into the fresh water produced by the electrodialysis tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30579986A JPS63158104A (en) | 1986-12-22 | 1986-12-22 | Desalting equipment by electrodialysis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30579986A JPS63158104A (en) | 1986-12-22 | 1986-12-22 | Desalting equipment by electrodialysis method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63158104A true JPS63158104A (en) | 1988-07-01 |
Family
ID=17949498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30579986A Pending JPS63158104A (en) | 1986-12-22 | 1986-12-22 | Desalting equipment by electrodialysis method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63158104A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002126744A (en) * | 2000-10-19 | 2002-05-08 | Ngk Insulators Ltd | Method for sterilizing electric reproduction type deionizing pure water device |
| JP4833077B2 (en) * | 2003-11-13 | 2011-12-07 | シ−メンス ウォーター テクノロジーズ ホールディング コープ | Water treatment method |
| CN106749743A (en) * | 2017-01-23 | 2017-05-31 | 同舟纵横（厦门）流体技术有限公司 | A kind of celestial grass Polyose extraction system and extraction process |
-
1986
- 1986-12-22 JP JP30579986A patent/JPS63158104A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002126744A (en) * | 2000-10-19 | 2002-05-08 | Ngk Insulators Ltd | Method for sterilizing electric reproduction type deionizing pure water device |
| JP4480251B2 (en) * | 2000-10-19 | 2010-06-16 | 日本碍子株式会社 | Disinfection of electric regenerative deionized water purifier |
| JP4833077B2 (en) * | 2003-11-13 | 2011-12-07 | シ−メンス ウォーター テクノロジーズ ホールディング コープ | Water treatment method |
| CN106749743A (en) * | 2017-01-23 | 2017-05-31 | 同舟纵横（厦门）流体技术有限公司 | A kind of celestial grass Polyose extraction system and extraction process |
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