CN212440656U - Industrial sewage and waste gas treatment equipment - Google Patents
Industrial sewage and waste gas treatment equipment Download PDFInfo
- Publication number
- CN212440656U CN212440656U CN202020840864.5U CN202020840864U CN212440656U CN 212440656 U CN212440656 U CN 212440656U CN 202020840864 U CN202020840864 U CN 202020840864U CN 212440656 U CN212440656 U CN 212440656U
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- Prior art keywords
- pipe
- tower
- water
- waste gas
- water purification
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- Expired - Fee Related
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- 239000010865 sewage Substances 0.000 title claims abstract description 57
- 239000002912 waste gas Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000000746 purification Methods 0.000 claims abstract description 40
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 30
- 239000010802 sludge Substances 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 8
- 210000003437 trachea Anatomy 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 238000005276 aerator Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 description 17
- 239000010842 industrial wastewater Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Images
Classifications
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- 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
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses an industrial sewage and exhaust-gas treatment equipment, including preliminary treatment tower, water purification tower and spray column, preliminary treatment tower lateral wall top intercommunication has the connecting pipe, and connects the trachea other end intercommunication spray column, preliminary treatment tower lateral wall below intercommunication has the connecting pipe, and connects the water pipe other end intercommunication water purification tower to be equipped with the control water valve on the connecting pipe, the welding of water purification tower top has the backward flow chamber, and the welding of backward flow chamber top has the spray column. Has the advantages that: the utility model discloses a preliminary treatment tower mixes the stirring with industrial sewage and waste gas, make between the two take place to react and fuse each other, the aerobic biological activated sludge who recycles in the water purification tower purifies sewage with the MBR membrane module, and extract the biofilm carrier in the spray column through circulating pipe and water pump and purify waste gas, thereby realized that industrial sewage purifies with the synchronous integral type of waste gas, unite two into one, not only reduced the construction cost, also practiced thrift the purification cost, and small floor area, therefore, the clothes hanger is strong in practicability.
Description
Technical Field
The utility model relates to a sewage treatment technical field particularly, relates to an industrial sewage and exhaust-gas treatment equipment.
Background
The industrial three wastes refer to waste gas, waste water and waste residues discharged in the industrial production process, wherein the industrial waste gas refers to various gases discharged in the industrial production process and not used any more, including smoke dust, odor, irritant gases and other harmful gases, and the industrial waste water, i.e. industrial sewage, refers to sewage containing various organic matters, inorganic matters and toxic substances discharged in the industrial production process and exiting a circulating system after being used.
Industrial sewage and waste gas contain various toxic and harmful substances, if the industrial sewage and waste gas are not properly treated, if the industrial sewage and waste gas do not reach the specified discharge standard and are discharged into the environment (atmosphere, water area and soil), the environment is polluted if the discharge standard exceeds the allowable amount of environmental self-purification, ecological balance and natural resources are damaged, industrial and agricultural production and human health are influenced, pollutants generate new substances after physical and chemical changes occur in the environment, most of the prior art separately treats industrial sewage and industrial waste gas, not only is the occupied area large, the construction cost high, but also partial waste gas generated in sewage treatment is directly discharged without treatment, the natural environment is polluted, and the physical health of people is influenced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides an industrial sewage and exhaust-gas treatment equipment possesses the integrative purification of sewage waste gas, and occupation of land is little, advantage with low costs, and then solves the problem among the above-mentioned background art.
(II) technical scheme
For realizing the integrative purification of above-mentioned sewage waste gas, take up an area of for a short time, advantage with low costs, the utility model discloses a concrete technical scheme as follows: the utility model provides an industrial sewage and exhaust-gas treatment equipment, includes preliminary treatment tower, water purification tower and spray column, preliminary treatment tower lateral wall top intercommunication has the connecting pipe, and connects the trachea other end intercommunication spray column, preliminary treatment tower lateral wall below intercommunication has the connecting pipe, and connects the water pipe other end intercommunication water purification tower to be equipped with the control water valve on the connecting pipe, the welding of water purification tower top has the backward flow chamber, and the welding of backward flow chamber top has the spray column.
Further, pretreatment tower top central authorities intercommunication intake pipe, and be equipped with the dust removal case in the intake pipe to dust removal case below is equipped with the booster pump, the intake pipe bottom link up pretreatment tower top and connect the micropore diffusion tube, and the micropore diffusion tube both sides are equipped with rabbling mechanism.
Further, the inlet tube has been seted up to the pretreatment tower lateral wall, and pretreatment tower bottom intercommunication first sewage pipe to be equipped with the sludge pump on the first sewage pipe.
Furthermore, a membrane module is arranged in the inner cavity of the water purification tower, a submerged aerator is arranged below the membrane module, the bottom of the water purification tower is communicated with a second sewage discharge pipe, and a sludge pump is arranged on the second sewage discharge pipe.
Furthermore, the upper portion of the side wall of the water purification tower is communicated with a circulating pipe, a water pump is arranged on the circulating pipe, the circulating pipe is connected with a booster water pump, the booster water pump is connected with a spray pipe penetrating through the side wall of the spray tower, a plurality of atomizing nozzles are connected below the spray pipe, and biological fillers are arranged below the atomizing nozzles.
Furthermore, the center of the top of the spray tower is communicated with an exhaust pipe, and an activated carbon adsorption box is arranged on the exhaust pipe.
Furthermore, a water outlet pipe is arranged at the bottom of the side wall of the water purification tower.
(III) advantageous effects
Compared with the prior art, the utility model provides an industrial sewage and exhaust-gas treatment equipment possesses following beneficial effect:
the utility model discloses a with leading-in industrial waste water behind the industrial waste gas dust removal, and stir, thereby carry out preliminary absorption with industrial sewage as the adsorbent of waste gas, react some harmful substance between the two and deposit and get rid of, the foul smell in the sewage also gives out through the stirring and gets into in the spray column along with industrial waste gas, purify through the biological washing mode, discharge after the active carbon adsorption is thorough at last, connect the water purification tower in the spray column below simultaneously, utilize good oxygen biological activity mud and MBR membrane module to purify sewage, and extract the biofilm carrier in the spray column through circulating pipe and water pump and purify waste gas, thereby industrial sewage and the synchronous integral type of waste gas purification have been realized, unite two into one, not only reduced the construction cost, also practiced thrift the purification cost, floor area is little, therefore, the clothes hanger is strong in practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an industrial sewage and waste gas treatment apparatus according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the part A of an industrial sewage and waste gas treatment apparatus according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion B of an industrial sewage and waste gas treatment apparatus according to an embodiment of the present invention.
In the figure:
1. an air inlet pipe; 2. a dust removal box; 3. a pressurization air pump; 4. a pretreatment tower; 5. a stirring mechanism; 6. a water inlet pipe; 7. a microporous diffusion tube; 8. a sludge pump; 9. a first drain pipe; 10. a reflux cavity; 11. a submerged aerator; 12. a second sewage draining pipe; 13. a water outlet pipe; 14. a membrane module; 15. a water purification tower; 16. a water pump; 17. a circulation pipe; 18. a spray tower; 19. biological fillers; 20. an activated carbon adsorption tank; 21. an exhaust pipe; 22. connecting an air pipe; 23. controlling a water valve; 24. connecting a water pipe; 25. a booster water pump; 26. a shower pipe; 27. an atomizing nozzle.
Detailed Description
For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.
According to the utility model discloses an embodiment provides an industrial sewage and exhaust-gas treatment equipment.
Now combine the attached drawing and the embodiment is right the utility model discloses explain further, as shown in fig. 1-3, according to the utility model discloses an industrial sewage and exhaust-gas treatment equipment, including pretreatment tower 4, water purification tower 15 and spray column 18, pretreatment tower 4 lateral wall top intercommunication has connecting trachea 22, and connect trachea 22 other end intercommunication spray column 18, pretreatment tower 4 lateral wall below intercommunication has connecting water pipe 24, and connect water pipe 24 other end intercommunication water purification tower 15, and be equipped with control water valve 23 on the connecting water pipe 24, the welding has backward flow chamber 10 above water purification tower 15, and the welding has spray column 18 above backward flow chamber 10, it purifies industrial sewage and the synchronous integral type of waste gas to have played, the effect that unites two into one, not only reduced the construction cost, also practiced thrift the purification cost, area is little, the small investment, and the practicality is strong.
In one embodiment, 4 top central authorities of preliminary treatment tower communicate intake pipe 1, and are equipped with dust removal case 2 on the intake pipe 1 to dust removal case 2 below is equipped with booster pump 3, and intake pipe 1 bottom link up preliminary treatment tower 4 top and connect micropore diffuser 7, and micropore diffuser 7 both sides are equipped with rabbling mechanism 5, dust removal case 2 is current mature technology, does not do detailed description here, has played the effect of getting rid of smoke and dust, solid particle in the industrial waste gas, in order to avoid blockking up the trachea, and guarantee industrial waste gas and industrial sewage mixed reaction even.
In one embodiment, the inlet pipe 6 is opened on the side wall of the pretreatment tower 4, the bottom of the pretreatment tower 4 is communicated with the first sewage discharge pipe 9, and the sludge pump 8 is arranged on the first sewage discharge pipe 9, so that the effect of discharging the precipitate generated by the reaction of the industrial sewage and the industrial waste gas is achieved.
In one embodiment, a membrane module 14 is arranged in an inner cavity of the water purification tower 15, a submerged aerator 11 is arranged below the membrane module 14, the bottom of the water purification tower 15 is communicated with a second drainage pipe 12, a sludge pump 8 is arranged on the second drainage pipe 12, the effect of purifying the pretreated industrial sewage is achieved, solid-liquid separation can be efficiently carried out, stable reclaimed water which is directly used is obtained, high-concentration microbial biomass in the water purification tower 15 is maintained, the residual sludge is less, ammonia nitrogen is removed very effectively, suspended matters and turbidity of effluent are close to zero, bacteria and viruses in the effluent are removed greatly, and energy consumption is low.
In one embodiment, a circulating pipe 17 is communicated above the side wall of the water purification tower 15, a water pump 16 is arranged on the circulating pipe 17, the circulating pipe 17 is connected with a booster water pump 25, the booster water pump 25 is connected with a spray pipe 26 penetrating through the side wall of the spray tower 18, a plurality of atomizing nozzles 27 are connected below the spray pipe 26, and a biological filler 19 is arranged below the atomizing nozzles 27, the biological filler 19 is a mature technology in the prior art, and is not described in detail herein, and the biological filler 19 is sprayed by high-concentration microorganisms in the water purification tower 15 through a biological washing method, so that pollutants in industrial waste gas are adsorbed and degraded, and odor emitted from the industrial waste gas and the industrial waste water is purified.
In one embodiment, the top center of the spray tower 18 is communicated with an exhaust pipe 21, and the exhaust pipe 21 is provided with an activated carbon adsorption tank 20, the activated carbon adsorption tank 20 is a mature technology in the prior art, and is not described in detail herein, and plays a role in secondarily adsorbing and purifying the purified industrial waste gas, so as to ensure that the discharged gas meets the national industrial waste gas emission standard.
In one embodiment, the bottom of the side wall of the water purification tower 15 is provided with a water outlet pipe 13 for guiding out the purified industrial sewage.
The working principle is as follows: when in use, firstly, a certain amount of industrial waste water is introduced into the pretreatment tower 4 through the water inlet pipe 6, then the industrial waste gas is introduced through the air inlet pipe 1, preferably, the waste gas with a great difference in chemical property with the industrial waste water, the waste gas is firstly dedusted by the dedusting box 2 before being introduced into the pretreatment tower 4, then is supercharged by the supercharging air pump 3 and enters the micropore diffusion pipe 7 to be introduced into the industrial waste water, the industrial waste water is primarily adsorbed as an adsorbent of the industrial waste gas through the stirring mechanism 5, certain harmful substances between the industrial waste water and the industrial waste gas react, certain harmful gases are dissolved into the waste water, certain reaction generates precipitate, the sludge is discharged through the sludge pump 8 on the first sewage discharge pipe 9 after being accumulated to a certain degree, meanwhile, odor in the industrial waste water is also emitted through the stirring and enters the spray tower 18 along with the industrial waste gas through the connecting air pipe 22, after the stirring is finished, the control water valve 23 is opened, the industrial sewage is purified by using the activated sludge in the water purification tower 15, and is aerated by the submerged aerator 11, the oxygen content of the water body is increased, the purification efficiency is improved, meanwhile, the industrial sewage containing microorganisms is extracted by the circulating pipe 17 and the water pump 16, is pressurized by the pressurizing water pump 25 and then is led into the spray pipe 26, the biological filler 19 in the spray tower 18 is sprayed, so that the pollutants in the industrial waste gas are adsorbed and degraded by the microorganisms of the biological filler 19, the odor emitted from the industrial waste gas and the industrial waste water is purified, and is discharged after being purified by the activated carbon adsorption tank 20 on the exhaust pipe 21, meanwhile, the sewage is secondarily purified by using the membrane component 14 in the water purification tower 15, the solid-liquid separation is efficiently carried out, the stable reclaimed water which is directly used is obtained, the high-concentration microorganism biomass in the water purification tower 15 is maintained, the residual sludge is little, and the ammonia nitrogen is removed, the suspended matter and turbidity of the discharged water are close to zero, bacteria and viruses in the discharged water are removed greatly, the energy consumption is low, a small amount of sludge is discharged through the sludge pump 8 on the second sewage discharge pipe 12 after being accumulated for one time, and the purified water is discharged through the water outlet pipe 13.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an industrial sewage and exhaust-gas treatment equipment, includes pretreatment tower (4), water purification tower (15) and spray column (18), its characterized in that, pretreatment tower (4) lateral wall top intercommunication has connecting trachea (22), and connects trachea (22) other end intercommunication spray column (18), pretreatment tower (4) lateral wall below intercommunication has connecting water pipe (24), and connects water pipe (24) other end intercommunication water purification tower (15) to be equipped with control water valve (23) on connecting water pipe (24), the welding of water purification tower (15) top has backward flow chamber (10), and the welding of backward flow chamber (10) top has spray column (18).
2. The industrial sewage and waste gas treatment equipment according to claim 1, wherein the top center of the pretreatment tower (4) is communicated with an air inlet pipe (1), a dust removal box (2) is arranged on the air inlet pipe (1), a pressurizing air pump (3) is arranged below the dust removal box (2), the bottom of the air inlet pipe (1) penetrates through the top of the pretreatment tower (4) and is connected with a micropore diffuser pipe (7), and stirring mechanisms (5) are arranged on two sides of the micropore diffuser pipe (7).
3. The industrial sewage and waste gas treatment equipment according to claim 1, wherein the side wall of the pretreatment tower (4) is provided with a water inlet pipe (6), the bottom of the pretreatment tower (4) is communicated with a first sewage discharge pipe (9), and the first sewage discharge pipe (9) is provided with a sludge pump (8).
4. The industrial sewage and waste gas treatment equipment according to claim 1, wherein a membrane module (14) is arranged in the inner cavity of the water purification tower (15), a submerged aerator (11) is arranged below the membrane module (14), the bottom of the water purification tower (15) is communicated with a second sewage discharge pipe (12), and a sludge pump (8) is arranged on the second sewage discharge pipe (12).
5. The industrial sewage and waste gas treatment equipment according to claim 1, wherein a circulating pipe (17) is communicated above the side wall of the water purification tower (15), a water pump (16) is arranged on the circulating pipe (17), the circulating pipe (17) is connected with a booster water pump (25), the booster water pump (25) is connected with a spray pipe (26) penetrating through the side wall of the spray tower (18), a plurality of atomizing nozzles (27) are connected below the spray pipe (26), and a biological filler (19) is arranged below the atomizing nozzles (27).
6. The industrial sewage and waste gas treatment equipment according to claim 1, wherein the top center of the spray tower (18) is communicated with an exhaust pipe (21), and the exhaust pipe (21) is provided with an activated carbon adsorption tank (20).
7. The industrial sewage and waste gas treatment equipment according to claim 1, wherein the water purification tower (15) is provided with a water outlet pipe (13) at the bottom of the side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840864.5U CN212440656U (en) | 2020-05-19 | 2020-05-19 | Industrial sewage and waste gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840864.5U CN212440656U (en) | 2020-05-19 | 2020-05-19 | Industrial sewage and waste gas treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212440656U true CN212440656U (en) | 2021-02-02 |
Family
ID=74482838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020840864.5U Expired - Fee Related CN212440656U (en) | 2020-05-19 | 2020-05-19 | Industrial sewage and waste gas treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212440656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116573734A (en) * | 2023-06-01 | 2023-08-11 | 安徽水利开发有限公司 | Sewage disinfection device for sewage sterilization treatment |
-
2020
- 2020-05-19 CN CN202020840864.5U patent/CN212440656U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116573734A (en) * | 2023-06-01 | 2023-08-11 | 安徽水利开发有限公司 | Sewage disinfection device for sewage sterilization treatment |
| CN116573734B (en) * | 2023-06-01 | 2023-10-24 | 安徽水利开发有限公司 | Sewage disinfection device for sewage sterilization treatment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 Termination date: 20210519 |