CN1184005A - Electrical ion exchange resin regenerating method and equipment - Google Patents
Electrical ion exchange resin regenerating method and equipment Download PDFInfo
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- CN1184005A CN1184005A CN96120791A CN96120791A CN1184005A CN 1184005 A CN1184005 A CN 1184005A CN 96120791 A CN96120791 A CN 96120791A CN 96120791 A CN96120791 A CN 96120791A CN 1184005 A CN1184005 A CN 1184005A
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- resin
- ion exchange
- water
- exchange resin
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Abstract
The present invention relates to the regeneration of deactivated ion exchange resin it features that the said method and equipment consume electricity power and the hydrogen ions and the hydroxide radical ions in the regeneration come from common water rather than acid, alkali and other chemical. Compared with available technology, the present invention exhausts no waste acid, alkali and water to pollute environment and this results in great economic and environment utility.
Description
The present invention relates to inefficacy regeneration of ion-exchange resin method and apparatus in the ion-exchange water treatment desalting technology.Be particularly related to a kind of ion-exchange and mix used regeneration of ion-exchange resin method of bed and device.
At present, ion-exchange mix bed be still that fuel-burning power plant and electronic industry produce must obligato equipment in pure water and the ultrapure water technological process.In mixing bed, H type storng-acid cation exchange resin and OH type strongly basic anion exchange resin are housed generally.They can carry out ion-exchange with institute's saliniferous yin, yang ion in the water, thereby make the salt ion in the water be obtained pure water by resin absorption.Regenerate through learning solution with acid, alkalization after the yin, yang resin inefficacy of exchange, make it recover exchange capacity.There is following shortcoming in this soda acid chemical agent method of reproduction:
1. the regenerative agent utilization ratio is very low, and the ion that accounts for very big weight percent in the chemical agent does not obtain utilizing;
2. a large amount of spent acid spent caustic solutions and Cleaning Wastewater discharging, corrosion water drain, and polluted-water destroy the eubiosis;
3. regenerative operation is various, and workman's labor condition is poor;
4. regeneration system rapidly complexity, and require anticorrosion.
Calculate that according to relevant data the year acid consumption that China is used to produce de-salted water is about 2,000 ten thousand tons, a year alkali consumption is about 5,000,000 tons.Because most of unemployed medicament ion discharging and fuel-burning power plant distribution are wide in the resin regeneration process, the result causes large-area water body severe contamination.Thereby people take other free of contaminationly to produce pure water processes or seek a kind of renovation process without soda acid trying hard to seek.
Purpose of the present invention and task are exactly deficiency and the defective that exists at prior art, a kind of electric regeneration method and device thereof of ion exchange resin are provided, this kind method and device not only not consumption acids alkalization learn medicament, the no waste discharging, not polluted-water and environment, but also have simple to operate, easy to use, advantage such as working cost is low.
The electric regeneration method of ion exchange resin of the present invention is realized according to the following steps:
(1) in the class of being made up of cavity block, anode membrane, dense, freshwater room and cathode compartment and anolyte compartment is intended the container of electrodialyzer, switches on, form DC electric field;
(2) after the energising, make the water generation polarized action in the freshwater room, make a spot of water power from the H that goes out q.s
+And OH
-
(3) exhausted resin and ortho-water are constantly joined in the freshwater room, make the H that is produced
+And OH
-With exhausted resin resin regeneration reaction taking place in the resin boundary layer, at this moment, under the effect of extra electric field, substitute the electrolyte ion that gets off from exhausted resin, carry out selective migration in time, sees through the yin, yang film respectively and drain to dense water;
(4) resin in the freshwater room constantly flows, and regenerating resin is continuously outflowed.
The principle of aforesaid method is to be based upon water power from product H
+And OH
-On the basis of ion regeneration exhausted resin.Only when electrodialysis process generation polarized action, ionization just takes place in the water of minute quantity in the freshwater room, and ionization goes out the H of q.s
+And OH
-Ion does not also wait them to move out of freshwater room, the overwhelming majority just in resin surrounding edge interlayer with exhausted resin generation regenerative response, they are adsorbed by exhausted resin respectively, thereby exhausted resin is regenerated voluntarily.And substitute the electrolyte ion that gets off from exhausted resin, and under the effect of extra electric field, carry out selective migration at once, see through the yin, yang film respectively to dense water, to drain, exhausted resin has obtained electric regeneration like this.Therefore, as long as continuously exhausted resin is input in the freshwater room that is similar to electrodialyzer, just can obtain abundant regenerated ion exchange resin from wherein flowing out slowly.
Electric regeneration method according to above-mentioned ion exchange resin, the electric regenerating unit of the ion exchange resin that the present invention is alleged is achieved through the following technical solutions: it mainly comprises electrode device, replace the anion and cation exchange membrane of arranging, dense, diluted gasket, it is characterized in that this device is the garden cylindricality, its upper end is the inlet of exhausted resin stream, the lower end is the outlet of regenerating resin stream, its skin is an electrode layer, its center is an electrode vessel, both form the two poles of the earth of DC electric field, and the two poles of the earth intermediary film and dividing plate core are pressed the mode of spiral wound on the central electrode chamber.
Accompanying drawing 1 is the synoptic diagram of electric regeneration of ion exchange resin process.
Accompanying drawing 2 is the structural representation of electric regeneration of ion exchange resin device.
Accompanying drawing 3 launches synoptic diagram for transverse wall.
Accompanying drawing 4 launches synoptic diagram for vertical clapboard.
Describe principle of the present invention, structure and most preferred embodiment in detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is one and alternately arranges the container that a class that forms is intended electrodialyzer by the yin, yang film, and 1 be cavity block, and 2 is anode membrane, the ion exchange resin 4 of the inefficacy of packing in freshwater room 3.After the energising, the water generation polarization phenomena of the minute quantity in the freshwater room, ionization goes out the H of sufficient amount
+And OH
-Ion does not also wait them to move out of freshwater room, the overwhelming majority just in resin surrounding edge interlayer with exhausted resin generation regenerative response, they are adsorbed by exhausted resin respectively, thereby resin is regenerated.And substitute the electrolyte ion (Na that gets off from exhausted resin
+And Cl
-), under the effect of extra electric field, carry out selective migration at once, see through the negative and positive film respectively and to dense hydroecium, discharge.Therefore, the regenerative response of the zwitterion exchanger that takes place in freshwater room only is the regenerative response that generally takes place with the acid-alkali regeneration exchanger, promptly
NaR+H
+ HR+Na
+
R’Cl+OH
- R’OH+Cl
-
In the formula: R is the cationite precursor skeleton, and R ' is the anionite precursor skeleton.
As seen, H in reaction this moment
+And OH
-Ion does not come in the chemical agent soda acid, but comes in common water.This regenerative response only carries out in freshwater room, and it is not an electrode reaction, and only is ordinary acid-alkali regeneration reaction.What only this method of reproduction consumed is electric energy, and the impellent that regenerative process is carried out is an electric power, so claim that it is electric method of reproduction.
Accompanying drawing 2 is electric regenerating units of the ion exchange resin that designs according to such scheme.This device is the garden cylindricality, and its upper end is the inlet of exhausted resin stream, and the lower end is the outlet of regenerating resin stream, and skin is an electrode layer, and the center is an electrode vessel 7, and both form the two poles of the earth of DC electric field jointly.Electrode is made with the titanium silk that is coated with ruthenium, and establishes the electrode frame dividing plate, and is logical for utmost point current.The central electrode chamber outer wall is an anode membrane, and outer again each layer is vertical clapboard, cavity block, transverse wall, and each layer just so arranged later on.Film and dividing plate be by the helical coil method on the central electrode chamber.Like this, anode membrane-vertical clapboard-cavity block is formed freshwater room; Cavity block-transverse wall-anode membrane is just formed dense hydroecium.Therefore, outside from the central electrode chamber, each hydroecium is to be arranged in order down by light-dense-light order.Freshwater room is that the effect of indoor vertical clapboard is that resin flow and freshet can be circulated, and two films are close together for the passage of resin flow and freshet circulation, and their flow direction is from top to bottom.Dense hydroecium is for the moving passage of concentrated stream, and indoor effect of putting transverse wall is that dense water is thickened gradually except that plaing a part two films are not close to.Transverse wall has runner with dense water by the multilayered structure that is divided into several sections up and down.Generally be divided into three layers, can be with the runner of dense water by being divided into four sections up and down, it is to flow from outside to inside by helical coil that two sections current are arranged, it is from inside to outside to flow by helical coil that two sections current are arranged.
Dense water inlet 8 is positioned at outer eminence, and dense water out 9 is positioned at outer lower, and the diameter of this device is generally 1 meter, and high 2-3 rice can go out different specifications according to the capacity different designs.
The assembly two ends of film and dividing plate are respectively equipped with tapered cap 5 and tapered bottom 6, and purpose is to be convenient to resin flow to distribute each freshwater room of inflow, also is convenient to collect.For ease of observing, can adopt transparent plastics to make.
The present invention compared with prior art has the following advantages and beneficial effect: because the electric regeneration method of this kind ion exchange resin and device consumption is electric energy, namely lean on water power from product H+And OH-Ion regeneration was lost efficacy Resin replaces with the regeneration of soda acid chemical agent, thereby does not have a large amount of spent acid spent caustic solutions and clean discharge of wastewater, Thereby polluted-water not, environmental sound; Therefore very big economic benefit is not only arranged, and environmental benefit is non-Chang Xianzhu. The method is simple to operate, easy to use simultaneously, and operating cost is low.
Claims (4)
1, a kind of electric regeneration method of ion exchange resin is characterized in that:
(1) in the class of being made up of cavity block, anode membrane, dense, freshwater room and cathode compartment and anolyte compartment is intended the container of electrodialyzer, switches on, form DC electric field;
(2) after the energising, make the water generation polarized action in the freshwater room, make a spot of water power from the H that goes out q.s
+And OH
-
(3) exhausted resin and ortho-water are constantly joined in the freshwater room, make the H that is produced
+And OH
-With exhausted resin resin regeneration reaction taking place in the resin boundary layer, at this moment, under the effect of extra electric field, substitute the electrolyte ion that gets off from exhausted resin, carry out selective migration in time, sees through the negative and positive film respectively and drain to dense hydroecium;
(4) resin in the freshwater room constantly flows, and regenerating resin is continuously outflowed.
2, according to the electric regenerating unit of the ion exchange resin of the described method of claim 1, it mainly comprises electrode device, replace the yin, yang ion-exchange membrane of arranging, dense, diluted gasket is characterized in that this device is the garden cylindricality, its upper end is the inlet of exhausted resin stream, the lower end is the outlet of regenerating resin stream, and its skin is an electrode layer, and its center is an electrode vessel, both form the two poles of the earth of DC electric field, and the two poles of the earth intermediary film and dividing plate core are pressed the mode of spiral wound on the central electrode chamber.
3,, it is characterized in that transverse wall in the dense hydroecium has runner with dense water by the multilayered structure that is divided into several sections up and down according to the electric regenerating unit of the described ion exchange resin of claim 2.
4,, it is characterized in that the two ends of this device are respectively equipped with tapered cap and tapered bottom according to the electric regenerating unit of claim 2 or 3 described ion exchange resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120791A CN1073466C (en) | 1996-11-29 | 1996-11-29 | Electrical ion exchange resin regenerating method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96120791A CN1073466C (en) | 1996-11-29 | 1996-11-29 | Electrical ion exchange resin regenerating method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1184005A true CN1184005A (en) | 1998-06-10 |
| CN1073466C CN1073466C (en) | 2001-10-24 |
Family
ID=5126590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96120791A Expired - Fee Related CN1073466C (en) | 1996-11-29 | 1996-11-29 | Electrical ion exchange resin regenerating method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1073466C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387345C (en) * | 2005-08-03 | 2008-05-14 | 邓佑 | Method an equipment for regenerating ion exchange resin by utilizing polarization effect |
| CN100413593C (en) * | 2006-12-22 | 2008-08-27 | 南京大学 | Process for regenerating of in-situ electricity of adsorption resin |
| CN100425346C (en) * | 2006-12-28 | 2008-10-15 | 大连交通大学 | Electric regeneration method for aluminium type hybrid resin |
| CN101880074A (en) * | 2010-06-28 | 2010-11-10 | 浙江大学 | Electric regenerating device for inactive ion exchange resin |
| CN102583655A (en) * | 2012-03-09 | 2012-07-18 | 山西太钢不锈钢股份有限公司 | Regeneration method for resin in continuous electric desalting membrane reactor |
| CN104888870A (en) * | 2014-03-06 | 2015-09-09 | 苏州华清水处理技术有限公司 | Apparatus for electrically regenerating mixed bed ion exchange resin through bipolar membrane method |
| CN107935132A (en) * | 2017-12-21 | 2018-04-20 | 兰州交通大学 | A kind of Electro Sorb coupled ion exchanges desalination regenerating unit and method |
| CN109908976A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative H-type cation bed failure cation exchange resin method of Bipolar Membrane method |
| CN109908979A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative OH type anion bed failure anion exchange resin method of Bipolar Membrane method |
| CN113955864A (en) * | 2021-11-23 | 2022-01-21 | 青岛理工大学 | System for reducing water hardness and method for reducing water hardness |
| CN114849795A (en) * | 2022-05-19 | 2022-08-05 | 西安热工研究院有限公司 | Cation resin dynamic electric regeneration device |
| CN115196724A (en) * | 2022-09-19 | 2022-10-18 | 欣格瑞（山东）环境科技有限公司 | Integrated desalting device adopting exchange electrode electrochemical composite ion replacement and implementation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5061387A (en) * | 1973-10-03 | 1975-05-26 | ||
| JPS5420964A (en) * | 1977-07-18 | 1979-02-16 | Kurita Water Ind Ltd | Regenerating method for ion exchange resin |
| JPS57201536A (en) * | 1981-06-05 | 1982-12-10 | Hitachi Ltd | Regenerating method of powdery ion exchange resin using ultrasonic wave |
-
1996
- 1996-11-29 CN CN96120791A patent/CN1073466C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387345C (en) * | 2005-08-03 | 2008-05-14 | 邓佑 | Method an equipment for regenerating ion exchange resin by utilizing polarization effect |
| CN100413593C (en) * | 2006-12-22 | 2008-08-27 | 南京大学 | Process for regenerating of in-situ electricity of adsorption resin |
| CN100425346C (en) * | 2006-12-28 | 2008-10-15 | 大连交通大学 | Electric regeneration method for aluminium type hybrid resin |
| CN101880074A (en) * | 2010-06-28 | 2010-11-10 | 浙江大学 | Electric regenerating device for inactive ion exchange resin |
| CN102583655A (en) * | 2012-03-09 | 2012-07-18 | 山西太钢不锈钢股份有限公司 | Regeneration method for resin in continuous electric desalting membrane reactor |
| CN104888870B (en) * | 2014-03-06 | 2017-04-12 | 苏州华清水处理技术有限公司 | Apparatus for electrically regenerating mixed bed ion exchange resin through bipolar membrane method |
| CN104888870A (en) * | 2014-03-06 | 2015-09-09 | 苏州华清水处理技术有限公司 | Apparatus for electrically regenerating mixed bed ion exchange resin through bipolar membrane method |
| CN109908976A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative H-type cation bed failure cation exchange resin method of Bipolar Membrane method |
| CN109908979A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative OH type anion bed failure anion exchange resin method of Bipolar Membrane method |
| CN107935132A (en) * | 2017-12-21 | 2018-04-20 | 兰州交通大学 | A kind of Electro Sorb coupled ion exchanges desalination regenerating unit and method |
| CN113955864A (en) * | 2021-11-23 | 2022-01-21 | 青岛理工大学 | System for reducing water hardness and method for reducing water hardness |
| CN114849795A (en) * | 2022-05-19 | 2022-08-05 | 西安热工研究院有限公司 | Cation resin dynamic electric regeneration device |
| CN115196724A (en) * | 2022-09-19 | 2022-10-18 | 欣格瑞（山东）环境科技有限公司 | Integrated desalting device adopting exchange electrode electrochemical composite ion replacement and implementation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1073466C (en) | 2001-10-24 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20011024 Termination date: 20131129 |