CN220485487U - A high-efficient Fenton reaction equipment for sewage treatment - Google Patents
A high-efficient Fenton reaction equipment for sewage treatment Download PDFInfo
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- CN220485487U CN220485487U CN202321669714.2U CN202321669714U CN220485487U CN 220485487 U CN220485487 U CN 220485487U CN 202321669714 U CN202321669714 U CN 202321669714U CN 220485487 U CN220485487 U CN 220485487U
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- dosing device
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 72
- 239000010865 sewage Substances 0.000 title claims abstract description 31
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 51
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims abstract description 20
- 238000005345 coagulation Methods 0.000 claims abstract description 15
- 230000015271 coagulation Effects 0.000 claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 9
- 239000011790 ferrous sulphate Substances 0.000 claims description 7
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
- 238000005189 flocculation Methods 0.000 claims description 7
- 230000016615 flocculation Effects 0.000 claims description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003020 moisturizing effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 18
- 239000003814 drug Substances 0.000 abstract description 14
- 238000005273 aeration Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 6
- 230000001112 coagulating effect Effects 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000009965 odorless effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000033116 oxidation-reduction process Effects 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses high-efficiency Fenton reaction equipment for sewage treatment, which comprises four functional areas of an acid regulating tank, a reaction tank, a neutralization tank and a coagulating sedimentation tank. The acid regulating tank is communicated with the reaction tank, the reaction tank is communicated with the neutralization tank, the neutralization tank is communicated with the coagulation tank, and the coagulation and sedimentation tank are communicated. The utility model optimizes and improves the original equipment, firstly, the metering pump is controlled by the threshold value through the real-time monitoring data of the instrument; secondly, the mixing effect of the reaction tank is enhanced by optimizing the water passing of the reaction tank and adding a mixing lift pump; thirdly, aeration stirring is added at the bottom of the neutralization tank, so that the hydrogen peroxide removal efficiency is increased, and the addition amount of sodium hydroxide is reduced; fourthly, an odor collection system is additionally arranged, so that odor gas dissipation is reduced; the optimizing improvement item of equipment can effectively reduce medicament use cost, and instrument control adds the medicine and can practice thrift the human cost, makes fortune dimension more convenient, and odor collection makes whole device odorless give off, promotes whole environment clean effect.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to efficient Fenton reaction equipment for sewage treatment.
Background
The advanced oxidation technology is a common high-efficiency pretreatment and advanced treatment process technology for industrial wastewater, and can effectively improve the biodegradability of the nondegradable sewage in a pretreatment section. Fenton is used as a high-grade oxidation water treatment technology, high-activity OH (hydroxyl radical) can be generated in the reaction process, and the OH can almost react with all electron-rich organic compounds in a non-selective and rapid way, so that the organic compounds are degraded into inorganic compounds such as water, carbon dioxide, inorganic salts and the like.
Aiming at the advanced treatment process, the existing Fenton system mainly comprises an acid regulating tank, a reaction tank, a neutralization tank and a coagulating sedimentation tank, and four functional areas are all fed with water through overflow. The acid regulating tank is matched with a concentrated sulfuric acid dosing device, the reaction tank is matched with a ferrous sulfate and hydrogen peroxide dosing device, the neutralization tank is matched with a sodium hydroxide dosing device, and the coagulating sedimentation tank is matched with a PAC (programmable logic controller) and PAM dosing device. The dosing device consists of a storage tank and a dosing metering pump, and the medicament is conveyed to each pool through a pipeline. The acid regulating tank and the neutralization tank are provided with PH meters for controlling the adding amount of the concentrated sulfuric acid and the sodium hydroxide. The Fenton treatment process is that firstly, the PH of incoming water is controlled to be 3-4 by adding concentrated sulfuric acid, the PH requirements of different waste water are different, sewage with the PH adjusted enters a reaction tank, the adding amount of ferrous sulfate and hydrogen peroxide is calculated according to the concentration of pollutant in the incoming water, and then the ferrous sulfate and the hydrogen peroxide are added into the reaction tank to react by a metering pump, so that the pollutants such as COD in the sewage are reduced to be within the discharge standard requirements. After the reaction, the sewage enters a neutralization tank, and the PH is adjusted back to about 7.5 by adding sodium hydroxide. The wastewater automatically flows into a coagulation reaction tank after neutralization, small-particle iron mud is flocculated into larger particles by adding PAC and PAM, and the larger particles enter a sedimentation tank for solid-liquid separation, and finally reach the discharge standard.
The existing Fenton technology has the problems of inaccurate dosing, insufficient reaction mixing and low hydrogen peroxide utilization rate, so that ton water treatment cost is increased. Meanwhile, the oxidation state of the reaction tank is difficult to control, and excessive hydrogen peroxide is added to easily cause the problem of foam expansion, so that the stable operation and the water outlet effect of the system are affected.
Disclosure of Invention
The utility model aims to provide high-efficiency Fenton reaction equipment for sewage treatment, which is characterized in that firstly, the dosage is controlled in a linkage way through a meter and a metering pump, then the mixing effect is improved through circulation lifting and stirring, and the reaction efficiency is improved. The equipment is additionally provided with an odor collection system, so that malodorous gas is not dissipated.
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
a high efficiency Fenton reaction apparatus for wastewater treatment, comprising:
an acid regulating tank, a reaction tank, a neutralization tank and a coagulating sedimentation tank. The acid regulating tank is communicated with the reaction tank, the reaction tank is communicated with the neutralization tank, the neutralization tank is communicated with the coagulation tank, and the coagulation and sedimentation tank are communicated, all of which are fed with water through overflow. The acid regulating tank is matched with a concentrated sulfuric acid dosing device, the reaction tank is matched with a ferrous sulfate and hydrogen peroxide dosing device, the neutralization tank is matched with a sodium hydroxide dosing device, and the coagulation tank is matched with PAC and PAM dosing devices. The dosing device consists of a storage tank and a dosing metering pump, and the medicament is conveyed to each pool through a pipeline.
The efficient Fenton reaction equipment for sewage treatment is characterized in that the water inlet of the acid regulating tank is lifted by the lifting pump, and the electromagnetic flowmeter and the control valve are additionally arranged on the water inlet pipeline and used for metering and controlling the water inlet of the system, so that a reference basis is provided for controlling the adding of the following medicaments;
above-mentioned a high-efficient Fenton reaction equipment for sewage treatment, wherein, the PH (PH value) apparatus is installed to the accent sour pond, through the PH threshold value that sets for, links with the dosing metering pump in the concentrated sulfuric acid dosing device.
The efficient Fenton reaction device for sewage treatment is characterized in that an ORP (oxidation-reduction potential) tester is installed in the reaction tank and is linked with a dosing metering pump in the hydrogen peroxide dosing device through a set oxidation-reduction potential threshold.
Above-mentioned a high-efficient Fenton reaction equipment for sewage treatment, wherein, the reaction tank sets up to baffling water to supporting corrosion-resistant pipeline circulating pump, can promote the terminal sewage of reaction tank to the reaction tank front end, also increased the mixed effect of sewage and hydrogen peroxide solution oxidant when increasing sewage dwell time, thereby improve the utilization ratio of medicament and the removal effect of pollutant.
Above-mentioned high-efficient Fenton reaction equipment for sewage treatment, wherein, the neutralization pond is installed the PH apparatus, through the PH threshold value that sets for, links with the dosing metering pump in the sodium hydroxide dosing device. Besides adding sodium hydroxide to accelerate the decomposition of hydrogen peroxide, an aeration pipeline is arranged at the bottom of the neutralization tank, so that the dissolution of sodium hydroxide is accelerated, and meanwhile, the stripping and removing effects of hydrogen peroxide are also improved.
Above-mentioned a high-efficient Fenton reaction equipment for sewage treatment, wherein, reaction tank and neutralization pond top all add and are equipped with sealed apron to offer the foul smell at the lateral wall on equipment liquid level upper portion and collect the mouth, discharge up to standard after deodorizing device handles.
The utility model has at least the following beneficial effects:
1. according to the utility model, the efficient Fenton reaction equipment for sewage treatment is realized, the metering pump is controlled by the threshold value through the real-time monitoring data of the instrument, so that the dosing is more accurate, and the medicament and labor cost are saved.
2. According to the utility model, the mixing effect of the reaction tank is enhanced by optimizing the water passing of the reaction tank and adding the mixing lift pump.
3. In the utility model, aeration stirring is added at the bottom of the neutralization tank, so that the hydrogen peroxide removal efficiency is increased, and the addition amount of sodium hydroxide is reduced.
4. In the utility model, an odor collecting system is additionally arranged, so that malodorous gas is not dissipated; the optimization improvement item can effectively reduce medicament use cost, and instrument control dosing can practice thrift the human cost, makes fortune dimension more convenient, and the odor is collected and is made whole device odorless give off, promotes whole environment clean effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic diagram of a high efficiency Fenton reaction apparatus for wastewater treatment according to the present utility model;
fig. 2 is a schematic structural diagram of a dosing device in the efficient Fenton reaction equipment for sewage treatment.
Reference numerals illustrate:
1. an acid regulating tank; 2. a reaction tank; 3. a neutralization pond; 4. a coagulation pool; 5. a flocculation tank; 6. a sedimentation tank; 7. a PH detector; 8. ORP detector; 9. an odor collection port; 10. neutralizing the gas stirring inlet of the pool; 11. a water supplementing pipe; 12. a metering pump; 13. a medicine adding barrel; 14. a stirrer; 15. an anti-winding sleeve; 16. and a water outlet pipe.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.
Referring to fig. 1 to 2, an embodiment of the present utility model provides a high-efficiency Fenton reaction device for sewage treatment, which includes: an acid regulating tank 1, a reaction tank 2, a neutralization tank 3, a coagulation tank 4, a flocculation tank 5 and a sedimentation tank 6;
wherein the acid regulating tank 1 is communicated with the reaction tank 2, the reaction tank 2 is communicated with the neutralization tank 3, the neutralization tank 3 is communicated with the coagulation tank 4, the coagulation tank 4 is communicated with the flocculation tank 5, the flocculation tank 5 is communicated with the sedimentation tank 6, and water is fed between the tanks through overflow;
wherein, the acid regulating tank 1 is matched with a concentrated sulfuric acid dosing device, the reaction tank 2 is matched with a ferrous sulfate and hydrogen peroxide dosing device, the neutralization tank 3 is matched with a sodium hydroxide dosing device, and the coagulation tank 4 is matched with PAC and PAM dosing devices;
wherein, the PH detector 7 is arranged in the acid regulating tank 1 and the neutralization tank 3, the ORP detector 8 is arranged in the reaction tank 2, and the odor collecting port 9 and the neutralization tank air stirring inlet 10 are also arranged on the neutralization tank 3;
the dosing device comprises a water supplementing pipe 11, a metering pump 12, a dosing barrel 13, a stirrer 14, an anti-winding sleeve 15 and a water outlet pipe 16, wherein the stirrer 14 is arranged at the top of the dosing barrel 13, the water supplementing pipe 11 and the water outlet pipe 16 are both arranged at the top of the dosing barrel 13, the metering pump 12 is arranged on the water supplementing pipe 11, and the anti-winding sleeve 15 is arranged in the dosing barrel 13;
by adopting the technical scheme, the original equipment is optimized and improved, and firstly, the metering pump 12 is subjected to threshold control by monitoring data in real time through an instrument; secondly, the mixing effect of the reaction tank 2 is enhanced by optimizing the water passing of the reaction tank 2 and adding a mixing lift pump; thirdly, aeration stirring is added at the bottom of the neutralization tank 3, so that the hydrogen peroxide removal efficiency is increased, and the addition amount of sodium hydroxide is reduced; fourthly, an odor collection system is additionally arranged, so that odor gas dissipation is reduced; the optimizing improvement item of equipment can effectively reduce medicament use cost, and instrument control adds the medicine and can practice thrift the human cost, makes fortune dimension more convenient, and odor collection makes whole device odorless give off, promotes whole environment clean effect.
Wherein, the water inlet of the acid regulating tank 1 is lifted by a lifting pump, and an electromagnetic flowmeter for measuring the water inflow of the system and a control valve for controlling the water inflow of the system are additionally arranged on a water inlet pipeline of the lifting pump.
Wherein, the PH value tester is installed in the PH value regulating tank 1, and is linked with the dosing metering pump 12 in the concentrated sulfuric acid dosing device through the set PH threshold value.
Wherein, the reaction tank 2 is provided with an ORP oxidation-reduction potential measuring instrument which is linked with a dosing metering pump 12 in the hydrogen peroxide dosing device through a set oxidation-reduction potential threshold value.
Wherein, the reaction tank 2 is set to baffle water, and is matched with a corrosion-resistant pipeline circulating pump, so that the sewage at the tail end of the reaction tank 2 can be lifted to the front end of the reaction tank 2, the residence time of the sewage is prolonged, and meanwhile, the mixing effect of the sewage and the hydrogen peroxide oxidant is also increased, thereby improving the utilization rate of the medicament and the removal effect of pollutants.
Wherein, the neutralization tank 3 is provided with a PH measuring instrument which is linked with a dosing metering pump 12 in a sodium hydroxide dosing device through a set PH threshold value. Besides adding sodium hydroxide to accelerate the decomposition of hydrogen peroxide, an aeration pipeline is arranged at the bottom of the neutralization tank 3, so that the effect of blowing off and removing hydrogen peroxide is enhanced while the dissolution of sodium hydroxide is accelerated.
Wherein, sealing cover plates are additionally arranged at the tops of the reaction tank 2 and the neutralization tank 3, and the odor is discharged after being treated by a deodorizing device through an odor collecting opening 9 on the side wall of the upper part of the liquid level of the equipment.
In the utility model:
firstly, the metering pump 12 is controlled by the threshold value through the real-time monitoring data of the instrument, so that the dosing is more accurate, and the cost of the medicament and the labor is saved.
Secondly, the mixing effect of the reaction tank 2 is enhanced by optimizing the water passing of the reaction tank 2 and adding a mixing lift pump;
thirdly, aeration stirring is added at the bottom of the neutralization tank 3, so that the hydrogen peroxide removal efficiency is increased, and the addition amount of sodium hydroxide is reduced.
Fourthly, an odor collection system is additionally arranged, so that malodorous gas is not dissipated; the optimization improvement item can effectively reduce medicament use cost, and instrument control dosing can practice thrift the human cost, makes fortune dimension more convenient, and the odor is collected and is made whole device odorless give off, promotes whole environment clean effect.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept, either as a result of the foregoing teachings or as a result of the knowledge or skills of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (6)
1. A high efficiency Fenton reaction apparatus for sewage treatment, comprising:
an acid regulating tank (1), a reaction tank (2), a neutralization tank (3), a coagulation tank (4), a flocculation tank (5) and a sedimentation tank (6);
the acid regulating tank (1) is communicated with the reaction tank (2), the reaction tank (2) is communicated with the neutralization tank (3), the neutralization tank (3) is communicated with the coagulation tank (4), the coagulation tank (4) is communicated with the flocculation tank (5), the flocculation tank (5) is communicated with the sedimentation tank (6), and water flows into the tanks through overflow;
the acid regulating tank (1) is matched with a concentrated sulfuric acid dosing device, the reaction tank (2) is matched with a ferrous sulfate and hydrogen peroxide dosing device, the neutralization tank (3) is matched with a sodium hydroxide dosing device, and the coagulation tank (4) is matched with a PAC and PAM dosing device.
2. A high efficiency Fenton reaction apparatus for treating sewage according to claim 1, wherein: the water inlet of the acid regulating tank (1) is lifted by a lifting pump, and an electromagnetic flowmeter for metering the water inflow of the system and a control valve for controlling the water inflow of the system are additionally arranged on a water inlet pipeline of the lifting pump.
3. A high efficiency Fenton reaction apparatus for treating sewage according to claim 2, wherein: concentrated sulfuric acid dosing device, ferrous sulfate and hydrogen peroxide dosing device, sodium hydroxide dosing device and PAC, PAM dosing device all include moisturizing pipe (11), measuring pump (12), dosing barrel (13), mixer (14), antiwind sleeve pipe (15) and outlet pipe (16) constitute, mixer (14) install in the top of dosing barrel (13), moisturizing pipe (11) and outlet pipe (16) all install in the top of dosing barrel (13), measuring pump (12) install in on moisturizing pipe (11), antiwind sleeve pipe (15) install in the inside of dosing barrel (13).
4. A high efficiency Fenton reaction apparatus for treating sewage according to claim 3, wherein: PH detector (7) are arranged in the acid regulating tank (1) and the neutralization tank (3), ORP detector (8) is arranged in the reaction tank (2), and odor collecting port (9) and neutralization tank air stirring inlet (10) are also arranged on the neutralization tank (3).
5. A high efficiency Fenton reaction apparatus for treating wastewater according to claim 4, wherein: the reaction tank (2) is set to be baffled water, and is matched with a pipeline circulating pump for lifting sewage at the tail end of the reaction tank (2) to the front end of the reaction tank (2).
6. A high efficiency Fenton reaction apparatus for treating sewage according to claim 5, wherein: sealing cover plates are additionally arranged at the tops of the reaction tank (2) and the neutralization tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321669714.2U CN220485487U (en) | 2023-06-29 | 2023-06-29 | A high-efficient Fenton reaction equipment for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321669714.2U CN220485487U (en) | 2023-06-29 | 2023-06-29 | A high-efficient Fenton reaction equipment for sewage treatment |
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| Publication Number | Publication Date |
|---|---|
| CN220485487U true CN220485487U (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321669714.2U Active CN220485487U (en) | 2023-06-29 | 2023-06-29 | A high-efficient Fenton reaction equipment for sewage treatment |
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| Country | Link |
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| CN (1) | CN220485487U (en) |
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- 2023-06-29 CN CN202321669714.2U patent/CN220485487U/en active Active
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