CN114314770A - Electroplating comprehensive wastewater high-efficiency treatment device for multistage continuous electric flocculation - Google Patents
Electroplating comprehensive wastewater high-efficiency treatment device for multistage continuous electric flocculation Download PDFInfo
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- CN114314770A CN114314770A CN202111410157.8A CN202111410157A CN114314770A CN 114314770 A CN114314770 A CN 114314770A CN 202111410157 A CN202111410157 A CN 202111410157A CN 114314770 A CN114314770 A CN 114314770A
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- multistage
- cone
- cell body
- water
- electric flocculation
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- 238000005189 flocculation Methods 0.000 title claims abstract description 26
- 230000016615 flocculation Effects 0.000 title claims abstract description 26
- 239000002351 wastewater Substances 0.000 title claims abstract description 20
- 238000009713 electroplating Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002893 slag Substances 0.000 claims abstract description 24
- 238000007790 scraping Methods 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000009297 electrocoagulation Methods 0.000 claims abstract description 9
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 210000005056 cell body Anatomy 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000013049 sediment Substances 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000011133 lead Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000010865 sewage Substances 0.000 abstract description 13
- 238000005868 electrolysis reaction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011651 chromium Substances 0.000 abstract description 6
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052804 chromium Inorganic materials 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 239000011701 zinc Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a multistage continuous electrocoagulation electroplating comprehensive wastewater high-efficiency treatment device, which belongs to the technical field of wastewater treatment and comprises three cone-bottom multistage tank bodies which are sequentially connected, wherein a rectification power supply and a copper bar are fixedly installed on the outer wall of the top of each cone-bottom multistage tank body, the rectification power supply is electrically connected with the copper bar, a motor plate group is arranged in each cone-bottom multistage tank body, a water baffle is fixed between the cone-bottom multistage tank bodies, and a multistage electrocoagulation region and a buffering slag scraping region are arranged in each cone-bottom multistage tank body; the invention can effectively remove the heavy metal ions such as chromium, nickel, copper, zinc and the like in the water by flocculation, the removal rate can reach 80-99% according to different water qualities, the sewage can be controlled to flow uniformly and reasonably as much as possible, the full electrolysis is ensured, and no dead angle is left. The result of the repeated circulation is to promote the electric flocculation to exert the maximum efficacy, ensure the best effect of electrolytic flocculation deslagging and have high use quality.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a high-efficiency treatment device for electroplating comprehensive wastewater by multistage continuous electric flocculation.
Background
In the comprehensive treatment process of electroplating wastewater, the wastewater needs to be subjected to necessary pretreatment, and finally the standard-reaching discharge of the wastewater treatment is realized through a series of application of membrane technology and other technologies. The pretreatment of the wastewater in the process is the most important treatment link and also is a necessary primary link, and the good pretreatment directly influences whether the subsequent work can be normally carried out. The general pretreatment methods are: chemical precipitation, electrolytic flocculation, air flotation, ion exchange, drug flocculation, resin adsorption, and the like.
The electric flocculation is a main mode of the prior wastewater pretreatment, but various defect problems are generated in the process of treating the electroplating wastewater. Is mainly provided with
(1) The efficiency of the plate is not guaranteed. Because the waste water contains various heavy metal ions, acid, alkali, organic substances and the like, the components are complex, and the content of harmful heavy metal components generated during treatment is high, and the harmful heavy metal components are easily adsorbed on the polar plate, so that the polar plate efficiency is seriously reduced.
(2) The maintenance cost of the polar plate is high. Because a large amount of metal ions are attached to the surface of the polar plate, the polar plate needs to be disassembled and polished for repair after being used for a period of time, and a large amount of manpower and material resources are consumed for repairing the polar plate, so that the use and maintenance cost is increased. The normal operation of production can be affected if no spare electrode plate is available, but the spare electrode plate needs to occupy certain funds.
(3) The loss of the electrode plate is unbalanced. Due to the action characteristics of the current, the anode and cathode electrode plates are not uniformly worn, and finally the electrode plate on one side is worn and the electrode plate on the other side can be used, so that the electrode plate on the other side can be used, and the electrode plate can be thrown away after being replaced by a new electrode plate, and great waste is generated.
(4) The electric flocculation is not thorough and is difficult to control effectively. Because the tank body is generally in a square structure, electrolysis is insufficient in certain areas, and particularly different harmful components can be treated only in a general way and cannot be treated differently.
(5) Dosing regulation is required. Because of insufficient electrolysis and insufficient effect, the electrolysis solution must be supplemented by a chemical adding mode, so that the treatment cost is increased, and great difficulty is brought to subsequent treatment.
In conclusion, a multi-stage continuous electric flocculation electroplating comprehensive wastewater high-efficiency treatment device is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for efficiently treating electroplating comprehensive wastewater by multi-stage continuous electric flocculation, which overcomes the defects of the prior art and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multistage continuous electroflocculation's electroplating wastewater high-efficiency processing device that synthesizes, includes the multistage cell body at the bottom of the three awl that connects gradually, the top outer wall fixed mounting of the multistage cell body at the bottom of the awl has rectification power and copper bar, the rectification power with the copper bar electricity is connected, be provided with motor plate group in the multistage cell body at the bottom of the awl, be fixed with between the multistage cell body at the bottom of the awl the breakwater, be equipped with multistage electroflocculation district and buffering in the multistage cell body at the bottom of the awl and scrape the sediment district, multistage electroflocculation district with the buffering is scraped the sediment district and is located respectively the both sides of breakwater, the top fixed mounting of the multistage cell body at the bottom of the awl has the sediment device of scraping, install aeration equipment in the multistage electroflocculation district, it is three run through between the multistage cell body at the bottom of the awl and be provided with the water distribution device.
As a preferred technical scheme, the water distribution device further comprises a water inlet and a water outlet, and the water inlet and the water outlet are respectively arranged at two ends of the water distribution device.
As a preferable technical solution of the present invention, the slag scraping device is installed above the buffer slag scraping area.
As a preferred technical scheme of the invention, the bottom of the cone bottom multistage groove body is provided with a sewage draining exit, and a valve is arranged on the sewage draining exit.
As a preferable aspect of the present invention, the motor plate group is made of any one of iron, aluminum, titanium, graphite, and lead.
As a preferred technical scheme of the invention, a slag discharging groove for slag discharging of the slag scraping device is arranged on the cone bottom multi-stage groove body.
The invention has the beneficial effects that:
the electric flocculation can effectively remove heavy metal ions such as chromium, nickel, copper, zinc and the like in water, the removal rate can reach 80-99% according to different water qualities, the sewage can be controlled to flow uniformly and reasonably as much as possible, the full electrolysis is ensured, and no dead angle is left. The result of the repeated circulation is to promote the electric flocculation to exert the maximum efficacy, ensure the best effect of electrolytic flocculation deslagging and have high use quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the present invention.
In the figure: 1. a rectified power supply; 2. copper bars; 3. a motor plate group; 4. a buffer slag scraping area; 5. a slag scraping device; 6. a water inlet; 7. an aeration device; 8. an ozone unit; 9. a cone bottom multi-stage groove body; 10. a sewage draining outlet; 11. a slag discharge groove; 12. a water distribution device; 13. a multi-stage electroflocculation zone; 14. a buffer slag scraping area; 15. and (7) a water outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a multi-stage continuous electrocoagulation electroplating comprehensive wastewater high-efficiency treatment device comprises three cone bottom multi-stage tank bodies 9 which are connected in sequence, wherein a rectification power supply 1 and a copper bar 2 are fixedly arranged on the outer wall of the top of the cone bottom multi-stage tank body 9, the rectification power supply 1 is electrically connected with the copper bar 2, a motor plate group 3 is arranged in the cone bottom multi-stage tank body 9, a water baffle plate 4 is fixed between the cone bottom multi-stage tank bodies 9, a multi-stage electrocoagulation region 13 and a buffering slag scraping region 14 are arranged in the cone bottom multi-stage tank body 9, the multi-stage electrocoagulation region 13 and the buffering slag scraping region 14 are respectively arranged at two sides of the water baffle plate 4, a slag scraping device 5 is fixedly arranged at the top of the cone bottom multi-stage tank body 9, a slag discharge groove 11 for slag discharge of the slag scraping device 5 is arranged on the cone bottom multi-stage tank body 9, an aeration device 7 is arranged in the bottom of the multi-stage electrocoagulation region 13, an ozone device 8 is arranged in the multi-stage electrocoagulation region 13, a water distribution device 12 is arranged between the three cone bottom multi-stage groove bodies 9 in a penetrating way.
The water distributor also comprises a water inlet 6 and a water outlet 15, wherein the water inlet 6 and the water outlet 15 are respectively arranged at two ends of the water distribution device 12.
The slag scraping device 5 is arranged above the buffer slag scraping area 14.
A sewage draining exit 10 is arranged at the bottom of the cone bottom multi-stage tank body 9, and a valve is arranged on the sewage draining exit 10.
The motor plate group 3 is made of any one of iron, aluminum, titanium, graphite and lead.
In this embodiment, during the electrical reaction process of the multi-stage tank 9 with a conical bottom, OH ions can be generated in the water to generate strong flocculation, strong oxidation, strong reduction, strong air flotation, etc., and the divalent Fe generated by electrolysis is used as a reducing agent to fully convert the high-valence Cr in the water into low-valence Cr, and then the Cr is neutralized with the OH generated by the reaction to generate a precipitate. The electrocoagulation can effectively remove heavy metal ions such as chromium, nickel, copper, zinc and the like in water, and the removal rate can reach 80-99% according to different water qualities.
According to different sewage qualities, the electrode plate group 3 of each stage in the device can be made of any one of iron, aluminum, titanium, graphite, lead and rare earth, so as to achieve the optimal pretreatment effect of the electric flocculation.
Through the setting of water distribution device 12, the electric flocculation in-process, the multistage cell body 9 of three awl end can adopt the same or different voltage, current value, generates different electric field effect to different harmful components in the adaptation sewage, including various suspended solids, bacterium virus etc. all can effectually get rid of, thereby accomplish thorough, the abundant processing of sewage. Water is distributed from the bottom, water is discharged from the upper part, then flows back to the bottom of the next stage of electric flocculation for water distribution, and is repeated to the last stage of electric flocculation module. Thereby controlling the sewage to flow uniformly and reasonably as much as possible, ensuring full electrolysis and no dead angle. The result of such repeated circulation is to promote the electric flocculation to exert the maximum efficacy and ensure the best effect of electrolytic flocculation deslagging.
Each stage of electrolysis separates out harmful substances in water through the exchange effect of electrons, and separated dirt is taken out and floats to the water surface through micro bubbles and is removed through a slag scraping device 5.
The bottom of each cone bottom multistage tank body 9 is provided with an aeration device 7, scum is driven to float up through aeration bubbles, and dirt attached to the electrode plate can be stripped, so that the cleanness of the surface of the electrode plate group 3 is ensured, and the high-efficiency consistency of the electrolytic performance is ensured.
According to the sewage composition, an ozone exposure device 8 is arranged at the bottom of the cone-bottom multi-stage tank body 9, and harmful substances such as COD (chemical oxygen demand), ammonia nitrogen and the like can be effectively reduced under the action of ozone.
The scum scraping mechanism 5 is arranged to remove scum brought out by floating of electrolytic bubbles, so that the scum of the current level does not enter the next level, and interference influence on the effect of the next level is avoided.
The lower part of the cone bottom multistage tank body 9 is designed to be a cone bottom, and relatively heavy dirt can sink to the cone bottom in the electrode action process to form sludge water which is discharged through the sewage outlet 10.
The structure of the cone bottom multi-stage tank body 9 can avoid the sludge sediment caused by adding medicine from being increased in quantity.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a multistage continuous electroflocculation's electroplating comprehensive waste water high-efficiency processing apparatus, includes three awl end multistage cell body (9) that connect gradually, its characterized in that, the top outer wall fixed mounting of awl end multistage cell body (9) has rectifier power supply (1) and copper bar (2), rectifier power supply (1) with copper bar (2) electricity is connected, be provided with motor plate group (3) in the awl end multistage cell body (9), be fixed with between awl end multistage cell body (9) breakwater (4), be equipped with multistage electroflocculation district (13) and buffering in the awl end multistage cell body (9) and scrape sediment district (14), multistage electroflocculation district (13) with buffering scrape sediment district (14) and be located respectively the both sides of breakwater (4), the top fixed mounting of awl end multistage cell body (9) scrapes sediment device (5), install aeration equipment (7) in the bottom of multistage cell body (9) at the end of many awl, an ozone device (8) is arranged in the multi-stage electric flocculation area (13), and a water distribution device (12) penetrates through the three cone bottom multi-stage groove bodies (9).
2. The high-efficiency treatment device for electroplating comprehensive wastewater of multistage continuous electric flocculation according to claim 1, further comprising a water inlet (6) and a water outlet (15), wherein the water inlet (6) and the water outlet (15) are respectively installed at two ends of the water distribution device (12).
3. The electroplating integrated wastewater high-efficiency treatment device with multi-stage continuous electroflocculation according to claim 1, characterized in that the slag scraping device (5) is installed above the buffer slag scraping area (14).
4. The device for efficiently treating the electroplating comprehensive wastewater by the multistage continuous electric flocculation of claim 1, wherein a drain outlet (10) is arranged at the bottom of the conical-bottom multistage tank body (9), and a valve is arranged on the drain outlet (10).
5. The device for efficiently treating the electroplating comprehensive wastewater by the multistage continuous electric flocculation of claim 1, wherein the motor plate group (3) is made of any one of iron, aluminum, titanium, graphite and lead.
6. The high-efficiency treatment device for the electroplating comprehensive wastewater of the multistage continuous electrocoagulation as claimed in claim 1, characterized in that a slag discharge groove (11) for discharging slag from the slag scraping device (5) is arranged on the conical-bottom multistage tank body (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111410157.8A CN114314770A (en) | 2021-11-25 | 2021-11-25 | Electroplating comprehensive wastewater high-efficiency treatment device for multistage continuous electric flocculation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111410157.8A CN114314770A (en) | 2021-11-25 | 2021-11-25 | Electroplating comprehensive wastewater high-efficiency treatment device for multistage continuous electric flocculation |
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| CN114314770A true CN114314770A (en) | 2022-04-12 |
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| CN202111410157.8A Pending CN114314770A (en) | 2021-11-25 | 2021-11-25 | Electroplating comprehensive wastewater high-efficiency treatment device for multistage continuous electric flocculation |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983941A (en) * | 2010-12-06 | 2011-03-09 | 沈阳工业大学 | Electric flocculation-air flotation integrated waste water treatment equipment |
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| CN103304010A (en) * | 2013-06-19 | 2013-09-18 | 广东沃杰森环保科技有限公司 | High-efficiency electrocoagulation device for sewage treatment |
| CN205710017U (en) * | 2016-05-16 | 2016-11-23 | 上海和惠生态环境科技有限公司 | A kind of emulsifying wastewater electrolysis special flocculation plant |
| CN109133441A (en) * | 2018-08-31 | 2019-01-04 | 成都飞创科技有限公司 | ECFF type integration electric flocculation carwash waste water processing unit |
-
2021
- 2021-11-25 CN CN202111410157.8A patent/CN114314770A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201770561U (en) * | 2010-08-24 | 2011-03-23 | 卓剑锋 | Mixed electroplating waste water treatment recycling set device |
| CN101983941A (en) * | 2010-12-06 | 2011-03-09 | 沈阳工业大学 | Electric flocculation-air flotation integrated waste water treatment equipment |
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| CN109133441A (en) * | 2018-08-31 | 2019-01-04 | 成都飞创科技有限公司 | ECFF type integration electric flocculation carwash waste water processing unit |
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