CN214031845U - Capacitive deionization electrode and capacitive deionization device - Google Patents
Capacitive deionization electrode and capacitive deionization device Download PDFInfo
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- CN214031845U CN214031845U CN202022275998.XU CN202022275998U CN214031845U CN 214031845 U CN214031845 U CN 214031845U CN 202022275998 U CN202022275998 U CN 202022275998U CN 214031845 U CN214031845 U CN 214031845U
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Abstract
本实用新型涉及一种电容去离子电极及电容去离子装置。该电容去离子电极，包括电极片、壳体、离子交换树脂、以及透水膜或者离子交换膜；所述壳体与所述电极片接触部分的上下表面为格网结构；所述电极片封装于所述壳体内并紧贴所述壳体的上下表面；所述壳体的上下表面填充有所述离子交换树脂，所述离子交换树脂的表面覆盖有所述透水膜或者所述离子交换膜。该电容去离子装置，包括多个上述电容去离子电极和两个板框；多个所述电容去离子电极中的正负电极交替固定于两个所述板框之间。该装置可进一步延长电极使用寿命、确保电极接触电阻低的同时强化去除不同类型离子的能力。
The utility model relates to a capacitance deionization electrode and a capacitance deionization device. The capacitive deionization electrode includes an electrode sheet, a casing, an ion exchange resin, and a water-permeable membrane or an ion exchange membrane; the upper and lower surfaces of the contact part of the casing and the electrode sheet are in a grid structure; the electrode sheet is packaged in a The casing is in close contact with the upper and lower surfaces of the casing; the upper and lower surfaces of the casing are filled with the ion exchange resin, and the surface of the ion exchange resin is covered with the water permeable membrane or the ion exchange membrane. The capacitive deionization device includes a plurality of the above capacitive deionization electrodes and two plate frames; the positive and negative electrodes in the plurality of the capacitive deionization electrodes are alternately fixed between the two plate frames. The device can further extend the life of the electrode, ensure low contact resistance of the electrode, and enhance the ability to remove different types of ions.
Description
Technical Field
The utility model relates to an electric capacity deionization field especially relates to an electric capacity deionization electrode and electric capacity deionization device.
Background
The electric double layer is a positive charge and negative charge distribution layer generated at the interface between two phases with different properties in aqueous solution, and directional arrangement of electrons and ions (dipoles) or charged particles is generated at the interface of an electrode/electrolyte to form a charged positive plate and a charged negative plate similar to a plate capacitor, namely the so-called electric double layer capacitor is formed. When a low-voltage direct current Electric field is applied to the electrodes, the electrodes are forced by the Electric field to strengthen the adsorption of charged ions or particles in the water solution, so that Electric Double Layer Capacitors (EDLCs) on the surfaces of the electrodes are formed, and the purpose of removing the ions or charged particles in the water is achieved, thereby purifying the water quality. When the amount of ions adsorbed on the electrode tends to saturation, electrons and ions (dipoles) arranged in an interface orientation mode can be separated from the electrode by powering off, short-circuiting the positive electrode and the negative electrode or applying reverse voltage to the positive electrode and the negative electrode respectively, and the electric double layer capacitance disappears.
However, the existing capacitive deionization device has the problems of high electrode contact resistance or weak deionization capability caused by simply depending on the electrodes to remove ions.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: how to ensure that the contact resistance of the electrode is low and simultaneously strengthen the capability of the electrode for removing different types of ions.
In order to solve the technical problem, the utility model provides an electric capacity deionization electrode and electric capacity deionization device.
A capacitive deionization electrode comprises an electrode plate, a shell, ion exchange resin and a permeable membrane or an ion exchange membrane;
the upper surface and the lower surface of the contact part of the shell and the electrode plate are of grid structures;
the electrode plate is packaged in the shell and clings to the upper surface and the lower surface of the shell;
the upper surface and the lower surface of the shell are filled with the ion exchange resin, and the surface of the ion exchange resin is covered with the water permeable membrane or the ion exchange membrane.
Further, the bottom end and/or the top end of the shell are/is provided with a first through hole.
Furthermore, a partition plate is arranged on the upper surface of the grid structure of the shell.
Further, the shell is made of ABS plastic, polypropylene or polyethylene.
Furthermore, two sides of two ends of the shell are respectively provided with a first bulge and a first mounting hole.
The utility model also provides a capacitive deionization device, which comprises the capacitive deionization electrode and two plate frames;
and positive and negative electrodes in the capacitive deionization electrodes are alternately fixed between the two plate frames.
Furthermore, the two ends of the plate frame are provided with second through holes.
Furthermore, a plurality of water distribution grooves are formed in the side wall, close to the capacitive deionization electrode, of the plate frame, and the two ends of the plurality of water distribution grooves are communicated with the second through holes and the surface of the capacitive deionization electrode.
Furthermore, a second bulge and a second mounting hole are formed in the inner side wall, opposite to the capacitive deionization electrode, of the plate frame; two sides of two ends of the capacitive deionization electrode are respectively provided with a first bulge and a first mounting hole; the plate frame and the adjacent capacitive deionization electrode are connected with the first mounting hole in a matched mode through the second bulge, or connected with the first bulge in a matched mode through the second mounting hole; and the adjacent capacitive deionization electrodes are matched and connected with the first mounting holes through the first bulges.
Furthermore, sealing gasket grooves are formed in the plate frame and the shell of the capacitive deionization electrode, and the sealing gaskets are fixed in the sealing gasket grooves to realize the sealing connection of the adjacent capacitive deionization electrodes, or the adjacent plate frame is in sealing connection with the capacitive deionization electrodes.
Further, the distance between the adjacent capacitive deionization electrodes is 2.5mm-6 mm.
Further, the two plate frames are fixedly connected through bolts.
The utility model discloses beneficial effect with the prior art contrast includes: in the capacitive deionization electrode, the upper surface and the lower surface of the contact part of the shell and the electrode plate are of a grid structure, the electrode plate is packaged in the shell and tightly attached to the upper surface and the lower surface of the shell, the electrode plate material in the electrode plate and the collector electrode can be perfectly compacted together, contact between the electrode plate material and the collector electrode is fully guaranteed, after the capacitive deionization electrode is electrified, low contact resistance between the electrode active material and the collector electrode is guaranteed, meanwhile, close contact between the electrode active material and the collector electrode can be guaranteed, stripping is not prone to occurring, and the service life of the electrode is prolonged. When the capacitive deionization electrode is used for capacitive deionization treatment of a capacitive deionization device, ion exchange resin is ingeniously filled on the upper surface and the lower surface of the shell, and the ion exchange capacity of the ion exchange resin is utilized, so that the capacity of removing ions of different types can be further enhanced besides the capacity of removing ions by the electrode plates; the permeable membrane or the ion exchange membrane is covered on the surface of the ion exchange resin, so that the ion exchange resin can be separated from water, the ion exchange resin is prevented from being washed away by water, the contact between the water and the ion exchange resin can be ensured, the ion exchange is realized, and the capability of removing ions of different types by the electrode is enhanced. When the ion exchange resin surface is covered with ion exchange resin, a Membrane Capacitive Deionization (MCDI) filled with ion exchange resin can be formed.
The utility model discloses an electric capacity deionization electrode's electric capacity deionization device, graticule mesh structure in the casing can separate adjacent electrode slice, and after electric capacity deionization device intake water, can prevent the electrode plate short circuit that the electrode deformation that leads to under the water pressure effect arouses, extension electrode life, and the device can further ensure that electrode contact resistance is low in the time of extension electrode life, strengthens the ability of getting rid of different grade type ion simultaneously.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
fig. 1 is a cross-sectional view of a capacitive deionization electrode according to an embodiment of the present invention.
Fig. 2 is an exploded view of a capacitive deionization electrode according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a capacitive deionization apparatus according to an embodiment of the present invention.
Fig. 4 is a side view of a capacitive deionization apparatus according to embodiment 1 of the present invention.
Fig. 5 is a side view of a capacitive deionization apparatus according to embodiment 2 of the present invention.
Fig. 6 is a side view of a capacitive deionization apparatus according to embodiment 3 of the present invention.
Description of reference numerals: 1. a capacitive deionization electrode; 11. an electrode sheet; 12. a housing; 121. a first through hole; 122. a first protrusion; 123. a first mounting hole; 124. a partition plate; 125. a seal gasket groove; 13. an ion exchange resin; 14. a water permeable membrane or an ion exchange membrane; 2. a plate frame; 21. a bolt; 22. a second through hole; 3. a water inlet pipe; 4. a water outlet pipe; 5. a grid structure; 6. a water distribution tank.
Detailed Description
With reference to fig. 1 to 6, the present embodiment proposes a capacitive deionization electrode, which includes an electrode sheet 11, a housing 12, an ion exchange resin 13, and a water permeable membrane or ion exchange membrane 14;
the upper and lower surfaces of the contact part of the shell 12 and the electrode plate 11 are of a grid structure 5;
the electrode plate 11 is packaged in the shell 12 and clings to the upper surface and the lower surface of the shell 12;
the upper and lower surfaces of the casing 12 are filled with ion exchange resin 13, and the surface of the ion exchange resin 13 is covered with a water permeable membrane or ion exchange membrane 14. Wherein the pore diameter of the permeable membrane or ion exchange membrane 14 is smaller than the particle diameter of the ion exchange resin 13, and the resin is prevented from penetrating out of the membrane and leaking while permeating water.
On the basis of the above embodiments, the bottom end and/or the top end of the housing 12 of the present embodiment is provided with the first through hole 121. The first through-hole 121 serves to form an inlet passage or an outlet passage of the water to be treated.
In addition to the above embodiments, the partition plate 124 is provided on the partition net structure 5 of the case 12 according to the present embodiment. The separators 124 partition the upper and lower surfaces of the case into a plurality of regions, and the resin is filled into the plurality of regions, thereby preventing uneven filling of the resin when the surface area of the electrode is large.
In addition to the above embodiments, the material of the housing 12 of the present embodiment is ABS plastic, polypropylene or polyethylene. The housing 12 may be manufactured by using a mold injection molding process and a 3D printing process in the prior art. The ABS plastic is a terpolymer of three monomers, namely acrylonitrile (a), butadiene (B) and styrene (S).
On the basis of the above embodiment, the first protrusion 122 and the first mounting hole 123 are respectively disposed on two sides of the two ends of the housing 12 according to the embodiment. The first protrusion 122 is connected with the first mounting hole 123 in a matching manner, so that the connection of the adjacent capacitive deionization electrodes can be realized. In addition, the first protrusion 122 and the second mounting hole can be matched and connected, and the first mounting hole 123 and the second protrusion are matched and connected to realize the connection of the capacitive deionization electrode and the plate frame 2.
In addition to the above embodiments, the thickness of the ion exchange resin 13 filled in the housing 12 of the present embodiment is 0.5 to 0.9 mm.
The collector of the electrode sheet in the present embodiment may be made of graphite, titanium, nickel, stainless steel plate, aluminum, copper, silver, or other materials; the electrode plate 11 may be made of a mixture of one or more of activated carbon, activated carbon fiber, carbon nanotube, carbon aerogel, activated coke, and graphene as an active material, polyvinylidene fluoride (PVDF) and Polytetrafluoroethylene (PTFE) as a binder, and one or a mixture of two of conductive carbon black and carbon nanotube as a conductive agent.
The ion exchange resin 13 is an ion exchange resin such as a strong acid, a strong base resin, a weak acid, a weak base resin, a high temperature resistant resin, a nuclear-grade resin, a zirconium phosphate ion exchange resin, or a hydrous zirconium oxide.
With reference to fig. 3-5, the present embodiment further includes a capacitive deionization apparatus, which includes a plurality of capacitive deionization electrodes 1 and two plate frames 2;
the positive and negative electrodes in the multiple capacitive deionization electrodes 1 are alternately fixed between the two plate frames 2, and gaps are formed between the adjacent capacitive deionization electrodes 1. The gap between the capacitive deionization electrodes 1 is a partial channel of the flowing water.
On the basis of the above embodiments, the plate frame 2 of the present embodiment is provided with second through holes at two ends. The second through hole is a water inlet hole or a water outlet hole. The number of the second through holes may be 1 or more, and preferably 1 or 2.
On the basis of the above-mentioned embodiments, a plurality of water distribution grooves 6 are provided on the side wall of the plate frame in the present embodiment, which is close to the capacitive deionization electrode, two ends of the plurality of water distribution grooves 6 communicate with the second through hole 22 and the capacitive deionization electrode 1, for introducing the water in the second through hole 22 into the capacitive deionization electrode 1, or introducing the water in the capacitive deionization electrode 1 into the second through hole 22, the plurality of water distribution grooves 22 disperse the water flowing into the capacitive deionization electrode from the second through hole into a plurality of branches, or disperse the water flowing into the second through hole from the capacitive deionization electrode into a plurality of branches, so as to slow down the flow rate of the water, avoid that the water pressure is too large to impact the ion exchange resin on the capacitive deionization electrode, further, the water distribution grooves 6 may be linear and/or curved, and the curved water distribution grooves may further extend the flow path of the water, and is more favorable for slowing down the flow speed of water.
On the basis of the above specific embodiment, the inner side wall of the plate frame 2 of the present specific embodiment, which is opposite to the capacitive deionization electrode 1, is provided with a second protrusion and a second mounting hole; two sides of two ends of the capacitive deionization electrode 1 are respectively provided with a first bulge 122 and a first mounting hole 123; the plate frame 2 and the adjacent capacitive deionization electrode 1 are connected with the first mounting hole 123 in a matched manner through the second protrusion, or connected with the first protrusion 122 in a matched manner through the second mounting hole; the adjacent capacitive deionization electrodes 1 are fittingly connected through the first protrusion 122 and the first mounting hole 123.
On the basis of the above embodiment, in the present embodiment, the two plate frames 2 are fixedly connected by the bolts 21. The plate frame 2 is firmly fixed.
On the basis of the foregoing specific embodiment, in this specific embodiment, the plate frame 2 and the capacitive deionization electrode 1 are both provided with the sealing gasket groove 125, the sealing gasket is fixed in the sealing gasket groove 125 to realize the sealing connection between the adjacent capacitive deionization electrodes 1, or the adjacent plate frame 2 is connected with the capacitive deionization electrode 1 in a sealing manner, as can be seen from fig. 1 and 2, the sealing gasket groove 125 on the deionization electrode is disposed on the upper surface of the housing 12 and located between the first through hole 121 and the first protrusion 122, or disposed on the lower surface of the housing 12 and located between the first through hole 121 and the first mounting hole 123.
On the basis of the foregoing specific embodiment, in this specific embodiment, the water inlet pipe 3 is disposed in the second through hole 22 at the bottom of the side surface of the plate frame 2, the water inlet pipe 3 is communicated with the first through hole 121 at the bottom end of the capacitive deionization electrode, so that water flows through the capacitive deionization electrode, the water outlet pipe 4 is disposed in the second through hole 22 at the top of the side surface of the plate frame 2, the water outlet pipe 4 is communicated with the first through hole 121 at the top end of the capacitive deionization electrode, and the water flows out of the plate frame 2 after flowing through the capacitive deionization electrode 1 through the water outlet pipe 4.
In this embodiment, the water treatment process is as follows:
water enters the second through hole 22 from the water inlet pipe 3 at the bottom of the plate frame 2 and flows through the plurality of water distribution grooves 6, the water is introduced into the first through hole 121 at the bottom of the capacitive deionization electrode through the plurality of water distribution grooves 6 and then enters the gap between the capacitive deionization electrodes, anions or cations in the water are removed by the capacitive deionization electrodes, the water flows out of the first through hole 121 at the top of the capacitive deionization electrodes, the water is introduced into the second through hole 22 at the top of the plate frame 2 through the plurality of water distribution grooves 6 and flows out of the water outlet pipe 4, and deionization treatment of the water is realized.
The detailed structural design of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, which form a part of this application and together with the embodiment of the invention serve to explain the principles of the invention and not to limit the scope of the invention.
Example 1
In the capacitive deionization electrode of the embodiment, a pure aluminum sheet is used as a collector, activated carbon fibers are used as an electrode active material, Polytetrafluoroethylene (PTFE) is used as a binder, and superconducting carbon black is used as a conductive agent, so that the thickness of the electrode sheet 11 is 1.0 mm. The injection molded material of the flexible housing 12 was ABS plastic, and the thickness of the capacitive deionization electrode was 3.0mm (without the protrusion thickness).
The resin filling thickness of the single surface of the capacitive deionization electrode is 0.8-0.9 mm. The two sides of the positive electrode are both filled with nuclear-grade cation exchange resin, and the two sides of the negative electrode are both filled with nuclear-grade anion exchange resin.
And after the resin is filled, covering a layer of permeable membrane, wherein the aperture of the permeable membrane is smaller than the particle size of the nuclear-grade ion exchange resin. The assembled capacitive deionization device filled with the ion exchange resin has the space between the adjacent capacitive deionization electrodes of 3.0 mm.
Referring to fig. 4, the top and the bottom of the capacitive deionization apparatus of this embodiment are respectively provided with two second through holes 22, and the plurality of water distribution channels are linear water distribution channels, that is, the water distribution channels are linear water distribution channels.
Example 2
The capacitive deionization electrode adopts foamed nickel as a collector, active coke powder as an electrode active material, polyvinylidene fluoride (PVDF) as a binder and superconducting carbon black as a conductive agent, and the thickness of the electrode plate 11 is 1.0 mm. The flexible shell 12 is integrally formed by injection molding of polypropylene (PP) plastics, the thickness of the capacitive deionization electrode is 2.5mm (the thickness of the capacitive deionization electrode does not contain a first bulge), and a curve-shaped water distribution flow channel is adopted in the optimized water distribution flow channel. The resin filling thickness of the single surface of the capacitive deionization electrode is 0.5-0.7 mm. Under the condition that the surface area of the electrode is large, in order to prevent uneven resin filling, two vertical partition plates 124 are oppositely arranged on the surface of the electrode to divide the surface of the electrode into 3 plates in combination with fig. 5, and the water distribution flow channel forms three channels for respectively feeding water into the three channels. Each plate can be filled with resin, two ends of the plate frame are respectively provided with a second through hole 22, and the plurality of water distribution grooves 6 are curved water distribution grooves, namely the water distribution channels adopt curved water distribution channels. The mixed nuclear-grade anion and cation exchange resin and anion and cation exchange resin are filled on the two sides of the positive electrode and the negative electrode in a ratio of 2: 1. And covering a layer of permeable membrane after the resin is filled, wherein the mesh aperture of the permeable membrane is smaller than the particle size of the nuclear-grade ion exchange resin.
The distance between the capacitive deionization electrodes of the assembled capacitive deionization device is 2.5 mm.
Example 3
The capacitive deionization electrode adopts a stainless steel sheet as a collector, active carbon powder as an electrode active material, polyvinylidene fluoride (PVDF) as a binder and superconducting carbon black as a conductive agent, and the thickness of the formed electrode is 1.0 mm. The integrally formed composite electrode injection molding material is Polyethylene (PE) plastic, the effective thickness of the composite electrode is 2.5mm (the thickness of the composite electrode does not contain the first bulge), and the optimized water distribution flow channel adopts a curve-shaped water distribution flow channel. The resin filling thickness of the single surface of the composite electrode is 0.5-0.7 mm. The two sides of the positive electrode and the negative electrode are filled with nuclear grade cation exchange resin. And after the positive electrode resin is filled, a layer of cation exchange membrane is covered, after the negative electrode resin is filled, a layer of anion exchange membrane is covered, and the mesh aperture of the anion exchange membrane and the mesh aperture of the cation exchange membrane are smaller than the particle size of the nuclear-grade ion exchange resin. Referring to fig. 6, two ends of the plate frame of the capacitive deionization apparatus are respectively provided with two second through holes 22, and the plurality of water distribution channels 6 are curved water distribution channels, that is, the water distribution channels are curved water distribution channels.
The distance between the capacitive deionization electrodes of the assembled capacitive deionization device is 2.5 mm.
Other beneficial effects are as follows:
1) the utility model provides a casing of integrated into one piece composite capacitor deionization electrode adopts grinding apparatus injection molding process or 3D printing process, and the shaping precision is high, can standardize batch industrial production.
2) The utility model discloses the concentration and the water yield size of ion in the aqueous solution that can handle as required expand electrode pair quantity wantonly to reach anticipated deionization effect.
3) The utility model provides an integrated into one piece composite capacitor deionization electrode, its electrode plate material and electrode frame graticule mesh in close contact with, can be perfect with electrode plate material and collecting electrode compaction together, fully guarantee the contact between the two, after the device circular telegram, guarantee that collecting electrode and electrode active material contact resistance between the two is low.
4) The utility model discloses fill ion exchange resin on integrated into one piece's composite capacitor deionization electrode, can strengthen the deionization ability of device. In addition, the removal of different types of ions can be directionally enhanced by the addition of resins that can be directionally ion exchanged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. A capacitive deionization electrode is characterized by comprising an electrode plate, a shell, ion exchange resin and a permeable membrane or an ion exchange membrane;
the upper surface and the lower surface of the contact part of the shell and the electrode plate are of grid structures;
the electrode plate is packaged in the shell and clings to the upper surface and the lower surface of the shell;
the upper surface and the lower surface of the shell are filled with the ion exchange resin, and the surface of the ion exchange resin is covered with the water permeable membrane or the ion exchange membrane.
2. The capacitive deionization electrode according to claim 1, wherein the bottom end and/or the top end of the housing is provided with a first through hole.
3. The capacitive deionization electrode of claim 1 wherein said housing is provided with a baffle.
4. The capacitive deionization electrode according to claim 1, wherein the housing is made of ABS plastic, polypropylene or polyethylene.
5. The capacitive deionization electrode according to claim 1, wherein both sides of both ends of the housing are respectively provided with a first protrusion and a first mounting hole.
6. A capacitive deionization unit comprising a plurality of capacitive deionization electrodes according to any one of claims 1 to 5 and two plate frames;
and positive and negative electrodes in the capacitive deionization electrodes are alternately fixed between the two plate frames.
7. The capacitive deionization apparatus as claimed in claim 6, wherein the plate frame is provided at both ends thereof with second through holes.
8. The capacitive deionization device according to claim 7, wherein a plurality of water distribution grooves are formed on the side wall of the plate frame close to the capacitive deionization electrode, and two ends of the plurality of water distribution grooves communicate with the second through holes and the surface of the capacitive deionization electrode.
9. The capacitive deionization device according to claim 6, wherein the inner side wall of the plate frame opposite to the capacitive deionization electrode is provided with a second protrusion and a second mounting hole; two sides of two ends of the capacitive deionization electrode are respectively provided with a first bulge and a first mounting hole; the plate frame and the adjacent capacitive deionization electrode are connected with the first mounting hole in a matched mode through the second bulge, or connected with the first bulge in a matched mode through the second mounting hole; and the adjacent capacitive deionization electrodes are matched and connected with the first mounting holes through the first bulges.
10. The capacitive deionization device according to claim 6, wherein the plate frame and the capacitive deionization electrode are provided with sealing gasket grooves, and sealing gaskets are fixed in the sealing gasket grooves to realize the sealing connection between adjacent capacitive deionization electrodes, or the adjacent plate frame and the capacitive deionization electrodes are in the sealing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022275998.XU CN214031845U (en) | 2020-10-12 | 2020-10-12 | Capacitive deionization electrode and capacitive deionization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022275998.XU CN214031845U (en) | 2020-10-12 | 2020-10-12 | Capacitive deionization electrode and capacitive deionization device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320903A (en) * | 2020-10-12 | 2021-02-05 | 江汉大学 | Capacitive deionization electrode and capacitive deionization device |
| CN116589051A (en) * | 2023-04-26 | 2023-08-15 | 西安热工研究院有限公司 | System and method for wastewater treatment |
-
2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320903A (en) * | 2020-10-12 | 2021-02-05 | 江汉大学 | Capacitive deionization electrode and capacitive deionization device |
| CN116589051A (en) * | 2023-04-26 | 2023-08-15 | 西安热工研究院有限公司 | System and method for wastewater treatment |
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