CN101108309A - EDI electric deioninzing dialyzator - Google Patents
EDI electric deioninzing dialyzator Download PDFInfo
- Publication number
- CN101108309A CN101108309A CNA2007100354612A CN200710035461A CN101108309A CN 101108309 A CN101108309 A CN 101108309A CN A2007100354612 A CNA2007100354612 A CN A2007100354612A CN 200710035461 A CN200710035461 A CN 200710035461A CN 101108309 A CN101108309 A CN 101108309A
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- CN
- China
- Prior art keywords
- exchange resin
- anion
- cation
- exchange
- exchange membrane
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 claims abstract description 37
- 238000005341 cation exchange Methods 0.000 claims abstract description 31
- 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 abstract description 27
- 239000003011 anion exchange membrane Substances 0.000 claims abstract description 25
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 24
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 24
- 239000003957 anion exchange resin Substances 0.000 claims abstract description 17
- 239000003729 cation exchange resin Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011324 bead Substances 0.000 claims abstract description 5
- 238000011033 desalting Methods 0.000 claims description 12
- 238000009296 electrodeionization Methods 0.000 claims description 10
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 125000000129 anionic group Chemical group 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses an EDI machine, which comprises a cathode compartment and an anode compartment, a desalt chamber and a condense chamber arranged cross between the cathode compartment and the anode compartment, each desalt chamber is separated with two neighboring condense chambers by an anionite membrane and a cation membrane; each desalt chamber is filled with cation exchange resin and anionite exchange resin forming a mixed bed, a separate space of the cathode compartment is filled with a current-conduction bead and an ion exchange resin. The invention is characterized in that: a cation-exchange membrane is added between the anode plate and anion exchange membrane in the anode compartment, which separates the anode compartment into two compartments, cation exchange resin and ion exchange resin of mixed bed are arranged between the anode plate and the cation exchange resin, anion exchange resin and ion exchange resin of mixed bed are arranged between the cation-exchange membrane and the anionite membrane. The invention can increase the service life of the anode plate and the filled ion exchange resin, and has simple process and low cost.
Description
Technical field
The present invention relates to a kind of EDI electrodeionization dialyzer that is used to produce high purity water.
Background technology
Existing electrodeionization dialyzer generally includes cathode chamber and anode chamber, be arranged alternately in desalting chamber and enriched chamber between cathode chamber and the anode chamber, each desalting chamber separates by anion-exchange membrane and cation-exchange membrane and two adjacent enriched chambers respectively, each desalting chamber is filled with cationic ion-exchange resin and the anion exchange resin that forms mixed bed, and the chamber compartment that forms negative electrode is filled with conductive bead or ion exchange resin.Existing anode chamber be by positive plate, anionic membrane and between the chamber compartment constitute, cation-exchange membrane is not established in the centre, chlorion can see through anionic membrane and separate out chlorine on positive plate, strong oxidation reaction can take place with positive plate and the ion exchange resin of being filled in these chlorine, thereby reduced the service life of the ion exchange resin of positive plate and filling greatly; The chamber compartment of the anode chamber that also has is that the dividing plate by web form constitutes, and processing is complicated, and cost is higher.
Summary of the invention
The objective of the invention is to overcome above shortcoming, a kind of service life of the ion exchange resin that can increase positive plate and filling and the electrodeionization dialyzer that processing is simple, cost is low are provided.
Technical scheme of the present invention comprises cathode chamber and anode chamber, be arranged alternately in desalting chamber and enriched chamber between cathode chamber and the anode chamber, each desalting chamber separates by anion-exchange membrane and cation-exchange membrane and two adjacent enriched chambers respectively, each desalting chamber is filled with cationic ion-exchange resin and the anion exchange resin that forms mixed bed, the chamber compartment of cathode chamber is filled with conductive bead or ion exchange resin, it is characterized in that the anode chamber increases a cation-exchange membrane between positive plate and anion-exchange membrane, the anode chamber is separated into two compartments, being filled with the ion exchange resin of cationic ion-exchange resin or mixed bed between positive plate and cation-exchange membrane, is best with the cationic ion-exchange resin; Being filled with the ion exchange resin of anion exchange resin or mixed bed between cation-exchange membrane and anion-exchange membrane, is best with anion exchange resin.
The enriched chamber that each is alternately arranged, respectively by two cation-exchange membranes and cationic ion-exchange resin of filling between them or mixed bed resin, add two anion-exchange membranes and anion exchange resin of filling between them or mixed bed resin, add the mixed bed exchange resin of filling between above cation-exchange membrane and the anion-exchange membrane and constitute.Add the complex rare-earth element in this mixed bed exchange resin, the ion exchange resin of its mixed bed is 100 with the ratio of complex rare-earth element: 1-1000000: 1.
Each enriched chamber of alternately arranging increases a bipolar mould between cation-exchange membrane and anion-exchange membrane, filling male ion-exchange resin or mixed bed resin between cation-exchange membrane and bipolar mould are filled anion exchange resin or mixed bed resin between bipolar mould and anion-exchange membrane.
After the present invention is separated into two compartments with the anode chamber, can overcome chlorion effectively and on positive plate, separate out chlorine through anionic membrane, strong oxidation reaction takes place in the ion exchange resin having avoided chlorine and positive plate and filled, thus can strengthen service life of ion exchange resin of positive plate and filling and processing simply, cost is low.
Description of drawings
Fig. 1 is embodiment 1 structural representation;
Fig. 2 is embodiment 2 structural representations.
The specific embodiment
Embodiment 1:
The present invention includes cathode chamber 1 and anode chamber 2, be arranged alternately in desalting chamber 3 and enriched chamber 4 between cathode chamber 1 and the anode chamber 2, each desalting chamber separates by anion-exchange membrane 5 and cation-exchange membrane 6 and two adjacent enriched chambers respectively, each desalting chamber is filled with cationic ion-exchange resin and the anion exchange resin that forms mixed bed, and the chamber compartment of cathode chamber 1 is filled with conductive bead or ion exchange resin 7.
The anode chamber increases a cation-exchange membrane 6-1 between positive plate 8 and anion-exchange membrane 5-1, the anode chamber is separated into two compartments.Between positive plate 8 and cation-exchange membrane 6-1, be filled with cationic ion-exchange resin, between cation-exchange membrane 6-1 and anion-exchange membrane 5-1, be filled with anion exchange resin.
The concentrated compartment 4 that each is alternately arranged, respectively by two cation-exchange membranes 6 and the cationic ion-exchange resin of filling between them and two anion-exchange membranes 5 and the anion exchange resin of filling between them, and the ion exchange resin of the mixed bed of filling between cation-exchange membrane 6 between their two packed beds and the anion-exchange membrane 5, add complex rare-earth element 9 in filling formation mixed bed anion exchange resin, its mixed-bed ion exchange resin is 100 with the ratio of complex rare-earth element: 1-1000000: 1.
Embodiment 2:
Present embodiment is as different from Example 1: each enriched chamber of alternately arranging is at cation-exchange membrane 6, and increased a bipolar mould 10 between the anion-exchange membrane 5, filling male ion-exchange resin or mixed bed resin between cation-exchange membrane 6 and bipolar mould 10 are filled anion exchange resin or mixed bed resin between bipolar mould 10 and anion-exchange membrane 5.
Claims (6)
1. EDI electrodeionization dialyzer, comprise cathode chamber and anode chamber, be arranged alternately in desalting chamber and enriched chamber between cathode chamber and the anode chamber, each desalting chamber separates by anion-exchange membrane and cation-exchange membrane and two adjacent enriched chambers respectively, each desalting chamber is filled with cationic ion-exchange resin and the anion exchange resin that forms mixed bed, the chamber compartment of cathode chamber is filled with conductive bead or ion exchange resin, it is characterized in that the anode chamber increases a cation-exchange membrane between positive plate and anion-exchange membrane, the anode chamber is separated into two compartments, between positive plate and cation-exchange membrane, be filled with cationic ion-exchange resin or mixed-bed ion exchange resin, between cation-exchange membrane and anion-exchange membrane, be filled with anion exchange resin or mixed-bed ion exchange resin.
2. EDI electrodeionization dialyzer according to claim 1, it is characterized in that the enriched chamber that each is alternately arranged, respectively by two cation-exchange membranes and cationic ion-exchange resin of filling between them or mixed bed resin, add two anion-exchange membranes and anion exchange resin of filling between them or mixed bed resin, add the mixed bed exchange resin of filling between above cation-exchange membrane and the anion-exchange membrane and constitute.
3. EDI electrodeionization dialyzer according to claim 1, it is characterized in that each enriched chamber of alternately arranging increases a bipolar mould between cation-exchange membrane and anion-exchange membrane, filling male ion-exchange resin or mixed bed resin between cation-exchange membrane and bipolar mould are filled anion exchange resin or mixed bed resin between bipolar mould and anion-exchange membrane.
4. must ask 2 described EDI electrodeionization dialyzers according to power, be added with the complex rare-earth element in the mixed bed exchange resin that it is characterized in that filling between cation-exchange membrane between described above two packed beds and the anion-exchange membrane, its mixed-bed ion exchange resin is 100 with the ratio of complex rare-earth element: 1-1000000: 1.
5. EDI electrodeionization dialyzer according to claim 1 and 2 is characterized in that being filled with cationic ion-exchange resin between described positive plate and the cation-exchange membrane.
6. EDI electrodeionization dialyzer according to claim 1 and 2 is characterized in that being filled with anion exchange resin between cation-exchange membrane and anion-exchange membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100354612A CN100493686C (en) | 2007-07-27 | 2007-07-27 | EDI electric deioninzing dialyzator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100354612A CN100493686C (en) | 2007-07-27 | 2007-07-27 | EDI electric deioninzing dialyzator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101108309A true CN101108309A (en) | 2008-01-23 |
| CN100493686C CN100493686C (en) | 2009-06-03 |
Family
ID=39040689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100354612A Active CN100493686C (en) | 2007-07-27 | 2007-07-27 | EDI electric deioninzing dialyzator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100493686C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153168A (en) * | 2010-12-01 | 2011-08-17 | 杭州水处理技术研究开发中心有限公司 | Method for adjusting quality of water produced by desalting sea water by reverse osmosis method by using bipolar membrane |
| CN104310543A (en) * | 2014-10-17 | 2015-01-28 | 山东奥美环境股份有限公司 | Method of separating complexing-form DTPA (diethylenetriamine pentaacetic acid) and hardness ions by electrodialysis process |
| CN113680211A (en) * | 2021-09-07 | 2021-11-23 | 湖南麦克尼斯水处理科技有限公司 | EDI electric deionizing dialyzer |
-
2007
- 2007-07-27 CN CNB2007100354612A patent/CN100493686C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153168A (en) * | 2010-12-01 | 2011-08-17 | 杭州水处理技术研究开发中心有限公司 | Method for adjusting quality of water produced by desalting sea water by reverse osmosis method by using bipolar membrane |
| CN102153168B (en) * | 2010-12-01 | 2012-10-31 | 杭州水处理技术研究开发中心有限公司 | Method for adjusting quality of water produced by desalting sea water by reverse osmosis method by using bipolar membrane |
| CN104310543A (en) * | 2014-10-17 | 2015-01-28 | 山东奥美环境股份有限公司 | Method of separating complexing-form DTPA (diethylenetriamine pentaacetic acid) and hardness ions by electrodialysis process |
| CN104310543B (en) * | 2014-10-17 | 2015-12-30 | 山东奥美环境股份有限公司 | Electroosmose process is separated the method for complex state DTPA and hardness ions |
| CN113680211A (en) * | 2021-09-07 | 2021-11-23 | 湖南麦克尼斯水处理科技有限公司 | EDI electric deionizing dialyzer |
| CN113680211B (en) * | 2021-09-07 | 2023-12-08 | 湖南麦克尼斯水处理科技有限公司 | EDI electrodeionization dialyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100493686C (en) | 2009-06-03 |
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