CN220449880U - Novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acid waste water - Google Patents
Novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acid waste water Download PDFInfo
- Publication number
- CN220449880U CN220449880U CN202321953451.8U CN202321953451U CN220449880U CN 220449880 U CN220449880 U CN 220449880U CN 202321953451 U CN202321953451 U CN 202321953451U CN 220449880 U CN220449880 U CN 220449880U
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- membrane
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- film
- alloy
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- 239000012528 membrane Substances 0.000 title claims abstract description 63
- 239000002351 wastewater Substances 0.000 title claims abstract description 18
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 16
- 239000002912 waste gas Substances 0.000 title claims abstract description 15
- 239000002253 acid Substances 0.000 title claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 45
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 44
- 238000005192 partition Methods 0.000 claims abstract description 9
- 230000002378 acidificating effect Effects 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 46
- 229910052742 iron Inorganic materials 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- VONLASUMRVUZLY-UHFFFAOYSA-N [Ir].[Ti].[Ta] Chemical compound [Ir].[Ti].[Ta] VONLASUMRVUZLY-UHFFFAOYSA-N 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- ULFQGKXWKFZMLH-UHFFFAOYSA-N iridium tantalum Chemical compound [Ta].[Ir] ULFQGKXWKFZMLH-UHFFFAOYSA-N 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 230000007774 longterm Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005341 cation exchange Methods 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water, and relates to the technical field of waste water recovery treatment. The utility model comprises a positioning structure and a membrane structure, wherein the membrane structure is fixed in the positioning structure; the membrane structure comprises an alloy cathode membrane, an alloy anode membrane, a conventional electrode membrane, a white electrode frame pad and a partition plate, wherein the white electrode frame pad, the conventional electrode membrane and the white electrode frame pad are sequentially arranged on one side, close to the porous plate, of the alloy cathode membrane, the white electrode frame pad, the conventional electrode membrane and the white electrode frame pad are sequentially arranged on one side, close to the porous plate, of the alloy anode membrane, and the alloy cathode membrane and the alloy anode membrane are separated by the partition plate. The utility model solves the problems of easy pollution and blockage to the membrane, body corrosion and high running cost in the treatment of high-concentration acid wastewater by the positioning structure and the membrane structure.
Description
Technical Field
The utility model belongs to the technical field related to wastewater recovery treatment, and particularly relates to a novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic wastewater.
Background
In the production process of the continuous spinning viscose fiber, a large amount of VOC waste gas can be produced, high-concentration acid waste water can be produced after the waste gas is treated by a biological method, the waste water is seriously polluted and blocked by the RO membrane treatment, pollution cleaning is required every day, the operating pressure is extremely high, the double-phase stainless steel 2205 is obviously corroded under the reducing acid condition, the pump body equipment is easily corroded, the operating time is seriously influenced, and the operating cost is increased.
Disclosure of Invention
The utility model aims to provide a novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acid waste water, which solves the problems of easy pollution and blockage to the membrane, body corrosion and high operation cost during high-concentration acid waste water treatment by arranging a positioning structure and a membrane structure.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a novel electrodialysis membrane device for treating VOC waste gas and treating and discharging acid waste water, which comprises a positioning structure and a membrane structure, wherein the membrane structure is fixed in the positioning structure;
the film structure comprises an alloy cathode film, an alloy anode film, a conventional anode film, a white anode frame pad and a partition plate, wherein the white anode frame pad, the conventional anode film and the white anode frame pad are sequentially arranged on one side of the alloy cathode film, which is close to the porous plate, of the porous plate; the iron clamp plate can be matched with the fixing screw rod to fix the membrane structure, the black buffer pad is used for isolating and buffering the iron clamp plate and the water distribution plate, the water distribution plate is used for supplementing electrolysis water, the tantalum iridium titanium plate is a titanium-based MMO coating DSA plate electrode, the conventional service life reaches more than a year, and the black electrode frame pad is used for isolating the tantalum iridium titanium plate from the porous plate.
Further, the positioning structure comprises two iron clamp plates, a water distribution plate, a tantalum iridium titanium plate and a porous plate, wherein the iron clamp plates are fixedly connected through eight fixing screws, and a black buffer pad, the water distribution plate, the tantalum iridium titanium plate, a black electrode frame pad and the porous plate are sequentially arranged between the two iron clamp plates from opposite surfaces to the center; because of the selective permeability of the alloy negative film and the alloy positive film, alternately arranged dilute chambers with reduced ion concentration and concentrated chambers with increased ion concentration are formed, and because only ions are allowed to permeate, no regeneration is needed, and long-term continuous operation can be realized; the conventional polar film plays an auxiliary role, the white polar frame pad is used for isolating the conventional polar film from the alloy cathode film and from the alloy anode film, and the diaphragm can effectively prevent the film stack from deforming, so that the film stack still maintains a good running state under the condition that the current density reaches 200A/m.
Further, the method comprises the steps of, the iron clamp plate is subjected to plastic dipping treatment.
Further, the surface of the tantalum iridium titanium plate is a tantalum iridium coating.
Further, the length and width of the opening frame openings of the black electrode frame pad and the white electrode frame pad are the same as the maximum length and the maximum width of the distribution range of the through holes of the porous plate.
Further, the membrane structure is fixed between two porous plates.
The utility model has the following beneficial effects:
the novel electrodialysis membrane device utilizes the coordination of the alloy negative membrane and the alloy positive membrane with the tantalum iridium titanium plate to desalt, concentrate, refine and recycle ionic substances in the solution, thereby effectively solving the problem that the long-term operation is affected due to the fouling of the membrane and the frequent cleaning of equipment;
and through the piled-up arrangement of the membrane structure, the acid resistance and the alkali resistance are stronger, the cleaning period is longer, the equipment operation is stable, and the operation cost can be greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a structural exploded view of the present utility model;
FIG. 3 is a schematic view of an iron clip of the present utility model;
FIG. 4 is a schematic view of a water distribution plate and perforated plate of the present utility model;
FIG. 5 is a schematic view of the membrane structure of the present utility model.
Reference numerals:
1. a positioning structure; 101. an iron splint; 1011. a fixed screw; 1012. a black cushion pad; 102. a water distribution plate; 103. tantalum iridium titanium plate; 1031. a black electrode frame pad; 104. a porous plate; 2. a membrane structure; 201. alloy negative film; 202. an alloy positive film; 203. a conventional polar film; 204. a white electrode frame pad; 205. a partition board.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-5, the utility model discloses a novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water, which comprises a positioning structure 1 and a membrane structure 2, wherein the membrane structure 2 is fixed in the positioning structure 1;
the positioning structure 1 comprises two iron clamp plates 101 subjected to plastic dipping treatment, a water distribution plate 102, a tantalum iridium titanium plate 103 and a perforated plate 104, wherein the iron clamp plates 101 are fixedly connected through eight fixing screws 1011, and a black buffer pad 1012, the water distribution plate 102, the tantalum iridium titanium plate 103, a black electrode frame pad 1031 and the perforated plate 104 are sequentially arranged between the two iron clamp plates 101 from the opposite center facing positions;
the iron clamp plate 101 is a positioning plate on two sides of the membrane structure 2, can be matched with the fixing screw 1011 to fix the membrane structure 2, the black buffer pad 1012 is positioned between the iron clamp plate 101 and the water distribution plate 102 and used for isolating and buffering the iron clamp plate 101 and the water distribution plate 102, water pipes for water distribution are arranged on the upper side and the lower side of the water distribution plate 102 and used for supplementing water for electrolysis, the tantalum iridium titanium plate 103 is a titanium-based MMO coating DSA plate electrode, a coating formula is adjusted according to various material characteristics, the whole plate is one-plate, no binding post fracture risk exists, the whole body is detachable, the conventional service life is more than 5 years, the black electrode frame pad 1031 is made of ethylene propylene rubber materials and arranged between the tantalum iridium titanium plate 103 and the porous plate 104 and used for isolating the tantalum iridium titanium plate 103 from the porous plate 104;
the film structure 2 comprises an alloy cathode film 201, an alloy Yang Mo 202, a conventional electrode film 203, a white electrode frame pad 204 and a partition 205 which are arranged between two porous plates 104, wherein the white electrode frame pad 204, the conventional electrode film 203 and the white electrode frame pad 204 are sequentially arranged on one side of the alloy cathode film 201, close to the porous plates 104, of the porous plates 104, the white electrode frame pad 204, the conventional electrode film 203 and the white electrode frame pad 204 are sequentially arranged on one side of the alloy anode film 202, close to the porous plates 104, of the porous plates 104, and the alloy cathode film 201 and the alloy anode film 202 are separated by the partition 205;
the alloy anion-exchange membrane 201 and the alloy cation-exchange membrane 202 are homogeneous ion-exchange membranes, are selectively permeable to ions, and have good electrochemical performance, wherein the alloy cation-exchange membrane 202 only has cations permeable and anions are repelled by negative charges and cannot permeate due to the fixed negative charge exchange groups; the alloy cathode 201 is the opposite. After the electrodes at the two ends are connected with a direct power supply, anions and cations in water migrate to the anode and the cathode respectively, and due to the selective permeability of the alloy cathode film 201 and the alloy anode film 202, a dilute chamber with reduced ion concentration and a concentrated chamber with increased ion concentration which are alternately arranged are formed, and due to the fact that ions only permeate, no regeneration needs exist, and long-term continuous operation can be realized; the conventional polar film 203 is a common exchange film and plays an auxiliary role, the white polar frame pad 204 is made of PE material and is used for isolating the conventional polar film 203 from the alloy cathode film 201 and the alloy anode film 202, the partition plate 205 is made of a high polymer soft alloy material, and the frame widening design can effectively prevent the deformation of a film stack, so that the film stack still maintains a good running state under the current density of 200A/m;
in summary, the novel electrodialysis membrane device utilizes the coordination of the alloy negative membrane 201 and the alloy positive membrane 202 with the tantalum iridium titanium plate 103 to desalt, concentrate, refine and recycle ionic substances in the solution, effectively solves the problem that long-term operation is affected due to membrane fouling and frequent cleaning of equipment, and has the advantages of acid resistance, alkali resistance, long cleaning period, stable equipment and low operation cost.
As shown in fig. 2, the length and width of the open frame openings of the black electrode frame pad 1031 and the white electrode frame pad 204 are the same as the maximum length and maximum width of the distribution range of the through holes of the porous plate 104.
One specific application of this embodiment is: the structure of the novel electrodialysis membrane device comprises an iron clamping plate 101 and a membrane structure 2, wherein the iron clamping plate 101 comprises an iron clamping plate 101, a water distribution plate 102, a tantalum iridium titanium plate 103 and a perforated plate 104, the membrane structure 2 comprises an alloy cathode membrane 201, an alloy Yang Mo, a conventional polar membrane 203, a white polar frame pad 204 and a separator 205, the structure effectively solves the problem that the long-term operation is influenced by the fouling of the membrane and the frequent cleaning of equipment according to the iron clamping plate 101, the water distribution plate 102, the tantalum iridium titanium plate 103, the perforated plate 104, the white polar frame pad 204, the conventional polar membrane 203, the white polar frame pad 204, the perforated plate 104, the tantalum iridium titanium plate 103, the water distribution plate 102 and the iron clamping plate 101, and the ionic substances in the solution are desalted, concentrated, refined and recycled by the cooperation of the alloy cathode membrane 201 and the alloy anode membrane 202 and the tantalum iridium titanium plate 103, and the membrane has the advantages of acid resistance, long cleaning period, stable equipment and low operation cost.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.
Claims (6)
1. Novel electrodialysis membrane device for treating VOC waste gas and treating and discharging acid waste water comprises a positioning structure (1) and a membrane structure (2), and is characterized in that: a membrane structure (2) is fixed in the positioning structure (1);
the film structure (2) comprises an alloy cathode film (201), an alloy anode film (202), a conventional anode film (203), a white anode frame pad (204) and a partition plate (205), wherein the alloy cathode film (201) is close to the porous plate (104), the white anode frame pad (204), the conventional anode film (203) and the white anode frame pad (204) are sequentially arranged on one side of the alloy cathode film (201) close to the porous plate (104), the white anode frame pad (204), the conventional anode film (203) and the white anode frame pad (204) are sequentially arranged on one side of the alloy anode film (202) close to the porous plate (104), and the alloy cathode film (201) and the alloy anode film (202) are separated by the partition plate (205).
2. The novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water according to claim 1, wherein: the positioning structure (1) comprises two iron clamp plates (101), a water distribution plate (102), tantalum iridium titanium plates (103) and a porous plate (104), wherein the iron clamp plates (101) are fixedly connected through eight fixing screws (1011), and a black buffer pad (1012), the water distribution plate (102), the tantalum iridium titanium plates (103), a black electrode frame pad (1031) and the porous plate (104) are sequentially arranged between the iron clamp plates (101) from opposite surfaces to the center.
3. The novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water according to claim 2, wherein: the iron clamp plate (101) is subjected to plastic dipping treatment.
4. The novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water according to claim 2, wherein: the surface of the tantalum iridium titanium plate (103) is a tantalum iridium coating.
5. The novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water according to claim 2, wherein: the length and width of the opening frame openings of the black electrode frame pad (1031) and the white electrode frame pad (204) are the same as the maximum length and the maximum width of the distribution range of the through holes of the porous plate (104).
6. The novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acidic waste water according to claim 2, wherein: the membrane structure (2) is fixed between two perforated plates (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321953451.8U CN220449880U (en) | 2023-07-24 | 2023-07-24 | Novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acid waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321953451.8U CN220449880U (en) | 2023-07-24 | 2023-07-24 | Novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acid waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220449880U true CN220449880U (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321953451.8U Active CN220449880U (en) | 2023-07-24 | 2023-07-24 | Novel electrodialysis membrane device for treating VOC waste gas to treat and discharge acid waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220449880U (en) |
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2023
- 2023-07-24 CN CN202321953451.8U patent/CN220449880U/en active Active
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