CN211141842U - Environment-friendly industrial wastewater treatment device - Google Patents
Environment-friendly industrial wastewater treatment device Download PDFInfo
- Publication number
- CN211141842U CN211141842U CN201922207135.6U CN201922207135U CN211141842U CN 211141842 U CN211141842 U CN 211141842U CN 201922207135 U CN201922207135 U CN 201922207135U CN 211141842 U CN211141842 U CN 211141842U
- Authority
- CN
- China
- Prior art keywords
- tank
- environment
- aerobic
- anaerobic
- industrial wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 29
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 29
- 239000002351 wastewater Substances 0.000 claims abstract description 46
- 239000000126 substance Substances 0.000 claims abstract description 32
- 239000012528 membrane Substances 0.000 claims abstract description 31
- 238000000746 purification Methods 0.000 claims abstract description 26
- 238000004062 sedimentation Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 241001233242 Lontra Species 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000001877 deodorizing effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004332 deodorization Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 23
- 239000003344 environmental pollutant Substances 0.000 abstract description 14
- 231100000719 pollutant Toxicity 0.000 abstract description 14
- 239000010865 sewage Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 150000002500 ions Chemical class 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 4
- 241001148470 aerobic bacillus Species 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a sewage treatment technical field, concretely relates to environment-friendly industrial wastewater treatment device. The environment-friendly industrial wastewater treatment device comprises a base, a primary sedimentation tank, an anaerobic biological treatment tank, an aerobic biological treatment tank, a secondary sedimentation tank, a chemical treatment tank and a purification tank, wherein a water inlet on the primary sedimentation tank is provided with a filter grid, an anaerobic biomembrane and a deoxidization screen plate are arranged in the anaerobic biological treatment tank, the deoxidization screen plate is filled with a deoxidant, the aerobic biomembrane is arranged in the aerobic biological treatment tank, the chemical treatment tank is connected with a medicine tank, and the purification tank is internally provided with a purification membrane. The anaerobic biological membrane is contacted with the wastewater to carry out anaerobic reaction; the aerobic biomembrane and the wastewater have aerobic reaction; the chemical treatment tank removes specific heavy metal ions, the purification membrane of the purification tank purifies the wastewater, and different types of pollutants in the wastewater are removed under the cooperation of anaerobic reaction, aerobic reaction, chemical reaction and the purification membrane, so that the treatment effect of the environment-friendly industrial wastewater treatment device is improved.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an environment-friendly industrial wastewater treatment device.
Background
Industrial wastewater (sewage) refers to wastewater, sewage and waste liquid produced in industrial production, which contains industrial production materials, intermediates and products lost with water and pollutants produced in the production process. With the rapid development of industry, the variety and quantity of waste water are rapidly increased, the pollution to water bodies is more and more extensive and serious, and the health and the safety of human beings are threatened. Therefore, the treatment of industrial wastewater is more important than the treatment of municipal sewage for environmental protection.
When wastewater generated in an industrial production process is treated, a wastewater treatment device usually adopts a mode of filtration precipitation, biological treatment and chemical treatment, and the existing biological treatment usually adopts materials such as biological membranes or sludge to purify the wastewater. However, with the complication of industrial production, the types of pollutants in industrial wastewater are gradually increased, and the fillers in different biological films can only treat part of pollutants in the wastewater, so that the treatment effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an environment-friendly industrial wastewater treatment device to solve the problem that the waste water treatment equipment among the prior art can only handle the partial pollutant in the waste water, the treatment effect is poor.
The technical proposal of the environment-friendly industrial wastewater treatment device of the utility model is that:
The utility model provides an environment-friendly industrial wastewater treatment device, includes the base, arrange the first pond that sinks, anaerobic biological treatment pond, aerobic biological treatment pond, two heavy ponds, chemical treatment pond and the purifying tank that communicate in proper order along the flow direction of waste water on the base, water inlet department on the first pond of sinking has arranged the filtration grid, anaerobic biological treatment pond in arrange anaerobic biomembrane and arrange the deoxidization otter board of anaerobic biomembrane top, the deoxidization otter board is filled with the oxygen-eliminating agent, aerobic biomembrane has been arranged in the aerobic biological treatment pond, be connected with the medicinal cupping on the chemical treatment pond, the chemical treatment pond is used for detaching specific heavy metal ion, arrange the purifying film in the purifying tank.
Preferably, the top of the aerobic biological treatment tank is also provided with a blower, and the blower is connected with a blower pipeline extending into the aerobic biological treatment tank.
Preferably, a one-way valve is further arranged on a communication pipeline between the anaerobic biological treatment tank and the aerobic biological treatment tank.
Preferably, a stirring device is further arranged on the chemical treatment pool and comprises a motor arranged outside the chemical treatment pool and a stirrer positioned in the chemical treatment pool, and the motor and the stirrer are connected through a stirring shaft in a transmission manner.
Preferably, the purification membrane includes a filtration membrane and a deodorization membrane arranged in this order in a flow direction of the wastewater.
Preferably, the deodorizing membrane is an activated carbon mesh plate filled with activated carbon.
Preferably, the filter grating includes a coarse filter grating and a fine filter grating arranged in sequence in a flow direction of the wastewater.
Preferably, a maintenance door is further arranged at the position of the filtering grid on the primary sedimentation tank.
Preferably, the bottom of the primary sedimentation tank and the bottom of the secondary sedimentation tank are respectively provided with a sewage discharge door for discharging sewage.
The utility model has the advantages that the anaerobic biological treatment tank and the aerobic biological treatment tank are arranged on the base in sequence along the flowing direction of the wastewater, the oxygen removing screen plate in the anaerobic biological treatment tank can absorb the oxygen in the anaerobic biological treatment tank, and an anaerobic environment is created so that an anaerobic biological film can be contacted with the wastewater to perform anaerobic reaction; aerobic biomembranes in the aerobic biological treatment tank perform aerobic reaction with the wastewater; specific heavy metal ions are removed by the chemical treatment tank, the effluent wastewater in the chemical treatment tank is purified by the purification membrane of the purification tank, different pollutants in the wastewater are removed by the cooperation of anaerobic reaction, aerobic reaction, chemical reaction and the purification membrane, and the treatment effect of the environment-friendly industrial wastewater treatment device is improved.
Drawings
FIG. 1 is a schematic structural view of an environment-friendly industrial wastewater treatment apparatus according to the present invention.
Wherein, 1-a base; 2-primary sedimentation tank; 21-a water inlet; 22-coarse filtration grating; 23-fine filtering grids; 24-a service door; 3-anaerobic biological treatment tank; 31-anaerobic biofilm; 32-oxygen removing screen plate; 4-aerobic biological treatment tank; 41-a blower; 42-air supply duct; 43-a one-way valve; 44. an anaerobic biofilm; 5-secondary sedimentation tank; 6-chemical treatment pool; 61-medicine pot; 62-a motor; 63-a stirrer; 64-a stirring shaft; 7-a purification tank; 71-a filter membrane; 72-deodorizing membranes; 73-a water outlet valve; 8-a sewage draining door.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses an environment-friendly industrial wastewater treatment device's preferred embodiment, as shown in figure 1, this environment-friendly industrial wastewater treatment device includes base 1, base 1 is last to have arranged along the flow direction of waste water that one sinks pond 2, anaerobic biological treatment pond 3, aerobic biological treatment pond 4, two sink ponds 5, chemical treatment pond 6 and purification tank 7, one sinks pond 2, anaerobic biological treatment pond 3, aerobic biological treatment pond 4, two sink ponds 5, loop through the intercommunication pipeline intercommunication between chemical treatment pond 6 and the purification tank 7.
The primary sedimentation tank 2 is used for removing solid pollutants in a suspended state in the sewage. The anaerobic biological treatment tank 3 is used for removing corresponding pollutants by using biological reaction in an anaerobic environment, and the aerobic biological treatment tank 4 is used for removing corresponding pollutants by using biological reaction in an aerobic environment. The secondary sedimentation tank 5 is used for removing the pollutants which are in a colloid state after flocculation in a flocculation sedimentation mode. The chemical treatment tank 6 is used to generate solid particles by chemical reaction and remove specific heavy metal ions. The purifying tank 7 is used for purifying the wastewater flowing out of the chemical treatment tank 6.
The primary sedimentation tank 2 is provided with a water inlet 21 for industrial wastewater to enter, and the water inlet 21 is arranged at the top of the primary sedimentation tank 2. The primary sedimentation tank 2 is provided with a filtering grid at the water inlet 21, the filtering grid comprises a coarse filtering grid 22 and a fine filtering grid 23 which are sequentially arranged along the flowing direction of the wastewater, and the coarse filtering grid 22 and the fine filtering grid 23 respectively filter the wastewater, so that the filtering effect can be improved. In this embodiment, the filtering aperture of the coarse filtering grid 22 is 15mm, and the filtering aperture of the fine filtering grid 23 is 3mm, in other embodiments, there may be only one filtering grid, and the filtering aperture may also be adjusted according to the size of the main pollutants in the wastewater.
The primary sedimentation tank 2 is also provided with a maintenance door 24 at the position where the coarse filtration grille 22 and the fine filtration grille 23 are arranged, and the maintenance door 24 is used for workers to clean and replace the filtration grille periodically. The bottom of the primary sedimentation tank 2 is also provided with a sewage discharge door 8, substances such as sludge and the like can be deposited at the bottom of the primary sedimentation tank 2 after working for a certain time, and the sewage discharge door 8 is used for an operator to clean the deposited sludge.
An anaerobic biofilm 31 and an oxygen removing screen plate 32 are arranged in the anaerobic biological treatment tank 3, and the anaerobic biofilm 31 is arranged at the lower side of the communicating pipeline so as to be contacted with the anaerobic biofilm 31 and react when wastewater enters and flows out. Deoxidization otter board 32 is arranged in the top of anaerobic biomembrane 31, and it has the oxygen-eliminating agent to fill on the deoxidization otter board 32, and in this embodiment, the oxygen-eliminating agent is the iron powder, and the cost of iron powder is low, can reduce wastewater treatment's cost. The anaerobic biological film 31 is formed by filling soft filler rich in anaerobic bacteria in the mesh plate, and can remove corresponding pollutants by using biological reaction of the anaerobic bacteria in an anaerobic state.
Aerobic biofilm 44 is arranged in the aerobic biological treatment tank 4, and the aerobic biofilm 44 is arranged at the lower side of the communication pipeline, so that the wastewater is contacted with the aerobic biofilm 44 and reacts when entering and flowing out. The aerobic biomembrane 44 is formed by filling soft filler rich in aerobic bacteria in the mesh plate, and can remove corresponding pollutants by using the biological reaction of the aerobic bacteria in an aerobic state.
The top of the aerobic biological treatment tank 4 is also provided with a blower 41, the blower 41 is connected with a blower pipeline 42 extending into the aerobic biological treatment tank 4, and the blower pipeline 42 is used for conveying air or oxygen into the aerobic biological treatment tank 4 so as to increase the oxygen content in the aerobic biological treatment tank 4 and facilitate the aerobic bacteria and wastewater to react under aerobic conditions. A one-way valve 43 is arranged on a communication pipeline between the aerobic biological treatment tank 4 and the anaerobic biological treatment tank 3, the one-way valve 43 is used for supplying wastewater and air which can only be conveyed from the anaerobic biological treatment tank 3 to the aerobic biological treatment tank 4, and oxygen conveyed by the blower 41 is prevented from entering the anaerobic biological treatment tank 3.
Two heavy ponds 5 are arranged between aerobic biological treatment pond 4 and chemical treatment pond 6, and the staff can add the flocculating agent to two in heavy pond 5, and the flocculating agent can produce the flocculation with the micro molecule debris in the waste water, forms colloid or massive macromolecular particulate matter after the micro molecule debris flocculation, and macromolecular particulate matter can deposit in the bottom of two heavy ponds 5, subsides the purification to waste water. The bottom of the secondary sedimentation tank 5 is provided with a sewage discharge door 8, and after working for a certain time, the operator can remove impurities deposited in the secondary sedimentation tank 5.
Be connected with medicinal cupping 61 on the chemical treatment pond 6, medicinal cupping 61 is used for storing specific chemical reagent, and chemical reagent is arranged in producing chemical reaction with the heavy metal ion in the waste water and generates solid particulate matter to eliminate specific metal ion in the waste water. Still arranged agitating unit on the chemical treatment pond 6, agitating unit includes motor 62 and agitator 63, and motor 62 is fixed to be set up at the top of chemical treatment pond 6, and motor 62 and agitator 63 pass through (mixing) shaft 64 transmission and connect, and in agitator 63 extended to the waste water in the chemical treatment pond 6, agitating unit can increase the reaction rate of the metal ion in chemical reagent and the waste water, improves waste water treatment efficiency.
The purification tank 7 is used for purifying the wastewater flowing out of the chemical treatment tank 6, a purification membrane is arranged in the purification tank 7, the purification membrane comprises a filtration membrane 71 and a deodorization membrane 72 which are sequentially arranged along the flowing direction of the wastewater, the filtration membrane 71 is a fine filtration membrane, and the filtration membrane 71 is used for removing compounds containing heavy metal ions generated in the chemical reaction tank. Deodorizing membrane 72 arranges the downstream position at filtration membrane 71, and deodorizing membrane 72 is for filling the active carbon otter board that has active carbon, and deodorizing membrane 72 can eliminate the peculiar smell in the waste water, and remaining impurity in the active carbon can also adsorb waste water simultaneously, improves this environment-friendly industrial wastewater treatment device's waste water treatment effect. The bottom of the purification tank 7 is also provided with a water outlet valve 73, and the water outlet valve 73 is used for discharging the purified wastewater.
To sum up, the utility model provides an environment-friendly industrial wastewater treatment device, which is characterized in that an anaerobic biological treatment tank and an aerobic biological treatment tank are sequentially arranged on a base along the flowing direction of wastewater, and an oxygen removing screen plate in the anaerobic biological treatment tank can absorb oxygen in the anaerobic biological treatment tank and create an anaerobic environment so that an anaerobic biological film is in contact with the wastewater to perform anaerobic reaction; aerobic biomembranes in the aerobic biological treatment tank perform aerobic reaction with the wastewater; specific heavy metal ions are removed by the chemical treatment tank, the effluent wastewater in the chemical treatment tank is purified by the purification membrane of the purification tank, different pollutants in the wastewater are removed by the cooperation of anaerobic reaction, aerobic reaction, chemical reaction and the purification membrane, and the treatment effect of the environment-friendly industrial wastewater treatment device is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides an environment-friendly industrial wastewater treatment device, a serial communication port, which comprises a base, arrange the first pond that sinks, anaerobic biological treatment pond, aerobic biological treatment pond, two heavy ponds, chemical treatment pond and the purification tank that communicate in proper order along the flow direction of waste water on the base, water inlet department on the first pond has arranged the filtration grid, anaerobic biofilm has been arranged in the anaerobic biological treatment pond and has been arranged the deoxidization otter board of anaerobic biofilm top, the packing has the oxygen-eliminating agent on the deoxidization otter board, aerobic biofilm has been arranged in the aerobic biological treatment pond, be connected with the medicinal cupping on the chemical treatment pond, the chemical treatment pond is used for detaching specific heavy metal ion, the purification tank has arranged the purification membrane in.
2. The apparatus for treating industrial waste water of environmental protection type as defined in claim 1, wherein a blower is further disposed on the top of said aerobic biological treatment tank, and a blower pipe extending into said aerobic biological treatment tank is connected to said blower.
3. The environment-friendly industrial wastewater treatment device according to claim 1, wherein a one-way valve is further disposed on a communication pipeline between the anoxic biological treatment tank and the aerobic biological treatment tank.
4. The environment-friendly industrial wastewater treatment device according to any one of claims 1 to 3, wherein a stirring device is further arranged on the chemical treatment tank, the stirring device comprises a motor arranged outside the chemical treatment tank and a stirrer positioned in the chemical treatment tank, and the motor and the stirrer are in transmission connection through a stirring shaft.
5. An environment-friendly industrial wastewater treatment apparatus according to any one of claims 1 to 3, wherein the purification membrane comprises a filtration membrane and a deodorization membrane arranged in this order in the flow direction of wastewater.
6. The environment-friendly industrial wastewater treatment apparatus according to claim 5, wherein the deodorizing membrane is an activated carbon mesh plate filled with activated carbon.
7. The environment-friendly industrial wastewater treatment apparatus according to any one of claims 1 to 3, wherein the filter grating comprises a coarse filter grating and a fine filter grating arranged in this order in a flow direction of wastewater.
8. The environment-friendly industrial wastewater treatment device according to any one of claims 1 to 3, wherein a maintenance door is further provided on the primary sedimentation tank at a position of the filter grating.
9. The environment-friendly industrial wastewater treatment device according to any one of claims 1 to 3, wherein blowdown doors for blowdown are disposed at the bottoms of the primary sedimentation tank and the secondary sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207135.6U CN211141842U (en) | 2019-12-11 | 2019-12-11 | Environment-friendly industrial wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207135.6U CN211141842U (en) | 2019-12-11 | 2019-12-11 | Environment-friendly industrial wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211141842U true CN211141842U (en) | 2020-07-31 |
Family
ID=71748480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922207135.6U Expired - Fee Related CN211141842U (en) | 2019-12-11 | 2019-12-11 | Environment-friendly industrial wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211141842U (en) |
-
2019
- 2019-12-11 CN CN201922207135.6U patent/CN211141842U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5658306B2 (en) | Advanced treatment method and apparatus for sewage that does not discharge sludge | |
| CN110204141A (en) | A kind of integrated industrial water purifier | |
| CN103373795B (en) | Processing equipment and method for cutting fluid waste water | |
| CN101591118A (en) | Multifunctional general sewage treatment system | |
| CN107973439A (en) | Easy to the effluent treatment plant of mud-water separation | |
| CN110467322A (en) | Laboratory high concentration comprehensive wastewater handles all-in-one machine | |
| CN209352733U (en) | A kind of hazardous waste processing center waste water treatment system | |
| CN208617652U (en) | Integrated form integrated sewage treating apparatus | |
| KR20130019164A (en) | Continuous time water purification apparatus using adsorption pack | |
| CN101955301B (en) | Method and equipment for treating micropollution raw water based on biological bamboo charcoal contact oxidation method | |
| CN201962160U (en) | Novel continuously working device for treating and recycling car washing sewage | |
| CN211141842U (en) | Environment-friendly industrial wastewater treatment device | |
| CN213446615U (en) | Ethylene-vinyl acetate copolymer adhesive wastewater treatment device | |
| CN211847525U (en) | Production wastewater treatment device | |
| CN212076748U (en) | AAO + BAF sewage treatment system | |
| CN210796122U (en) | Laboratory high-concentration comprehensive wastewater treatment all-in-one machine | |
| CN211394152U (en) | Reclaimed water treatment device | |
| CN107721074A (en) | A kind of environment-friendly type deodorizing industrial waste water purifying processing unit | |
| CN208218511U (en) | The processing unit of high-concentration sewage | |
| CN102249492B (en) | Processing method of lamivudine wastewater | |
| KR20010016337A (en) | Wastewater purification treatment system | |
| CN106082565A (en) | A kind of integrated sewage biological treating device | |
| CN101293724A (en) | Miniature general use sewage treatment system | |
| CN201268648Y (en) | Multifunctional universal sewage treatment system | |
| CN205473254U (en) | Compound sewage treatment plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20200731 |