CN106186545A - A kind of new membrane bioreactor sewage water processing means - Google Patents
A kind of new membrane bioreactor sewage water processing means Download PDFInfo
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- CN106186545A CN106186545A CN201610701292.0A CN201610701292A CN106186545A CN 106186545 A CN106186545 A CN 106186545A CN 201610701292 A CN201610701292 A CN 201610701292A CN 106186545 A CN106186545 A CN 106186545A
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- water level
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0006—Organic membrane manufacture by chemical reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/78—Graft polymers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/102—Permeable membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/38—Graft polymerization
- B01D2323/385—Graft polymerization involving radiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1226—Particular type of activated sludge processes comprising an absorbent material suspended in the mixed liquor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a kind of new membrane bioreactor sewage water processing means, including following assembly: suction water pump, water inlet pipe, bioreactor, gas explosion device, aeration control system, sewage backflow pipeline, membrane reactor, ultrasonic vibration box, supersonic generator, membrane module, outlet pipe one, advanced treatment apparatus, outlet pipe two；Also include three water level controllers: water level controller one, water level controller two, water level controller three.Described bioreactor top is connected with suction water pump, described water level controller one controls the inflow of water inlet pipe, described gas explosion device is arranged on bioreactor bottom, it is provided with water level controller two in described gas explosion device, described ultrasonic vibration box is arranged between the inwall of membrane reactor and membrane module, ultrasonic vibration box is connected with the supersonic generator signal outside membrane reactor by holding wire, and described membrane reactor bottom is provided with outlet pipe one, and described outlet pipe one is connected with advanced treatment apparatus.
Description
Technical field
The invention belongs to sewage treatment area, be specifically related to a kind of new membrane bioreactor sewage water processing means.
Background technology
China is as populous nation and industrial power, along with economic fast development, for water resource demand increasingly
Greatly, water, as valuable natural resources, is all life and human lives produces indispensable base substance of depending on for existence, but
China's water resource is not enriched, and on the one hand the scarcity of water resource is faced with the short water supply even problem of some areas shipwreck,
On the other hand along with the fast development of modern industry, the water resource pollution brought therewith is day by day serious, urban domestic wastewater and each
The handling rate of industrial wastewater is low, and the orthobiosis not only affecting the people also results in river, the pollution of soil etc., water resource supply and demand
The intensification of contradiction makes country increasingly pay attention to sewage disposal recycling.Existing sewage treatment process is various, and traditional process
It is big mostly to there is processing means floor space in technique, and solid-liquid separation efficiency is low, and mud surplus is big, and efficiency is low, power consumption height, goes out
The problems such as water water quality is unstable, complex management, such process technique can not meet the demand of existing sewage disposal, therefore,
Novel sewage processes the research just tool of technique and is of great significance.
Membrane bioreactor is the Novel state Waste Water Treatment of membrane separation technique and biologic treating technique combination.With
Membrane module replaces traditional biological treatment technology end second pond, keeps high activity sludge concentration in bioreactor, improves raw
Thing processes organic loading, thus reduces sewage treatment facility floor space, and by keeping low sludge loading to reduce excess sludge
Amount.For improving further the recovery utilization rate to water resource, the research of new membrane bioreactor include its with other at science and engineering
Skill with the use of become sewage disposal research new direction, how to develop more stable, efficient water outlet technique, improve and
Water quality is exactly the problem that the present invention is to be studied.
Summary of the invention
It is an object of the invention to provide a kind of new membrane bioreactor sewage water processing means.
For achieving the above object, a kind of new membrane bioreactor sewage water processing means, including following assembly: pump up water
Pump, water inlet pipe, bioreactor, gas explosion device, aeration control system, sewage backflow pipeline, membrane reactor, ultrasonic vibration box,
Supersonic generator, membrane module, outlet pipe one, advanced treatment apparatus, outlet pipe two；Also include three water level controllers: water level
Controller one, water level controller two, water level controller three.Described bioreactor top is connected with suction water pump, described water level
Controller one controls the inflow of water inlet pipe, and described gas explosion device is arranged on bioreactor bottom, sets in described gas explosion device
Being equipped with water level controller two, described ultrasonic vibration box is arranged between the inwall of membrane reactor and membrane module, and ultrasonic vibration box leads to
Crossing holding wire to be connected with the supersonic generator signal outside membrane reactor, described membrane reactor bottom is provided with outlet pipe one,
Described outlet pipe one is connected with advanced treatment apparatus.
Further, described membrane bioreactor is separate film biological reactor, has simple to operate, and film easy cleaning is more
The advantage changed, the regulation of described water level controller one controls to enter the sewage quantity of membrane bioreactor, thus overcomes separate film raw
The shortcoming that power consumption that thing reactor causes owing to water pump flow velocity is big is big.
Further, adding Powdered Activated Carbon in membrane reactor, its addition can make mud flco in the formation on film surface
Thing is looser, and water permeability improves, and slow down the formation of sludge filtering cake layer.
Further, described gas explosion device is to regulate aeration rate by aeration control system and water level controller two, described
Water level controller two is the height being regulated water level by the size measuring dissolved oxygen amount, is regulated by instant mensuration of dissolved oxygen amount
Water level just thus regulates aeration rate, has instant, accurate, the advantage of full-automatic regulation.
Further, in described membrane module, film is modified poly (ether-sulfone) NF membrane, and its method of modifying is: by polyether sulfone filtering film
Cleaning up, be placed in drying baker that 40 DEG C of freeze-day with constant temperature are to constant weight, recording its weight is G1, put in vessel, with metering system
Acid methyl ester is grafted monomers, to it through decompression distilation before using, is made into the monomer solution that mass concentration is 7%, pours into
State in vessel so that it is do not had the surface of film, graft reaction occurs under the conditions of ultraviolet radiation, produces graft polymers, take out
Afterwards with the surface that ethyl acetate is solvent monomer flushing membrane, then rinse with experimental water, be placed in 55 DEG C of freeze-day with constant temperature in drying baker
To constant weight, recording its weight is G2, it is described modified poly (ether-sulfone) NF membrane, hydrophobicity and the antimicrobial degraded of film can be improved
Ability and expand its pH range.
Further, the photo-grafting rate of described modified poly (ether-sulfone) NF membrane can characterize by below equation:
Further, described advanced treatment apparatus is built with filler, and described filler is divided into two-layer, and upper strata is activated carbon, under
Layer is modified high-molecular chelating agent, and activated carbon and high-molecular chelating agent are respectively provided with the strongest adsorption activity, in waste water
The materials such as heavy metal have the advantages that adsorbance is big, speed is fast, adsorption efficiency is high, and the sewage crossed through its advanced treating can directly be used
In life closet flushing, greening treegarden irrigation etc..
Further, described modified high-molecular chelating agen is modified animal feather, and its method of modifying is: collect animal feather
Clean up, with being dipped in after deionized water rinsing in sig water, CS2 solution, soak 15h at 50-60 DEG C, then use deionization
Water washes except surface residue, obtains modified animal feather, modified animal feather abundance, it is easy to degraded, preparation technology
Simply, the heavy metal to variable concentrations has good adsorption.
It is an advantage of the current invention that: inventive film bioreactor selects separate film biological reactor, it is simple to film clear
Wash and change, by Modified Membrane and membrane reactor are added Powdered Activated Carbon and ultrasonic vibration box with the use of, can effectively subtract
The pollution of slow film, improves hydrophobicity and the antimicrobial degradation capability of film, extends the service life of film.The present invention passes through three water
The setting of level controller and with the use of, regulated the inflow of control and suck water pump by water level controller one, thus reduce point
Put the shortcoming that the power consumption of formula membrane bioreactor existence is high；Water level controller two is to be adjusted by automatic measurement dissolved oxygen amount
The size of joint aeration rate；The water yield of water level controller three scalable entrance advanced treatment apparatus, thus advanced treatment apparatus of fitting
Processing speed；Residual heavy metal in advanced treatment apparatus removable membrane bioreactor water outlet, treated water can be straight
Connect for life closet flushing, greening treegarden irrigation etc., more meet environmental requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of new membrane bioreactor sewage water processing means；
Wherein, 1-aspirates water pump；2-water level controller one；3-water inlet pipe；4-bioreactor；5-gas explosion device；
6-water level controller two；7-aeration control system；8-sewage backflow pipeline；9-membrane reactor；10-ultrasonic vibration box；11-is ultrasonic
Wave producer；12-membrane module；13-outlet pipe one；14-water level controller three；15-advanced treatment apparatus；16-outlet pipe two.
Detailed description of the invention
Hereinafter, in conjunction with accompanying drawing 1 and embodiment, the detailed description of the invention of the present invention is described in detail:
As Fig. 1 illustrates a kind of new membrane bioreactor sewage water processing means of the present invention, including following assembly: pump up water
Pump 1, water inlet pipe 3, bioreactor 4, gas explosion device 5, aeration control system 7, sewage backflow pipeline 8, membrane reactor 9, ultrasonic
Ripple Vibration Box 10, supersonic generator 11, membrane module 12, outlet pipe 1, advanced treatment apparatus 15, outlet pipe 2 16；Also include
Three water level controllers: water level controller 1, water level controller 26, water level controller 3 14.Described bioreactor 4 top
Being connected with suction water pump 1, described water level controller 1 controls the inflow of water inlet pipe 3, and described gas explosion device 5 is arranged on biology
Reactor 4 bottom, is provided with water level controller 26 in described gas explosion device 5, described ultrasonic vibration box 10 is arranged on membrane reactor
Between inwall and the membrane module 12 of 9, ultrasonic vibration box 10 is believed with the supersonic generator 11 outside membrane reactor 9 by holding wire
Number connect, described membrane reactor 9 bottom is provided with outlet pipe 1, and described outlet pipe 1 is connected with advanced treatment apparatus 15.
Described membrane bioreactor is separate film biological reactor, has simple to operate, the advantage that film easy cleaning is changed, described water level
Controller 1 regulation controls to enter the sewage quantity of membrane bioreactor, thus overcomes separate film biological reactor due to water pump
The shortcoming that flow velocity is big and causes power consumption is big；Adding Powdered Activated Carbon in membrane reactor 9, its addition can make mud flco
Formation on film surface is looser, and water permeability improves, and slow down the formation of sludge filtering cake layer；Described gas explosion device 5 is logical
Crossing aeration control system 7 and water level controller 26 regulates aeration rate, described water level controller 26 is by measuring dissolved oxygen amount
Size regulates the height of water level, regulates water level height by the instant mensuration of dissolved oxygen amount thus regulates aeration rate, has i.e.
Time, accurately, the advantage of full-automatic regulation；In described membrane module 12, film is modified poly (ether-sulfone) NF membrane, and its method of modifying is: will be poly-
Ether sulfone NF membrane cleans up, and is placed in drying baker that 40 DEG C of freeze-day with constant temperature are to constant weight, and recording its weight is G1, put in vessel,
With methyl methacrylate as grafted monomers, to it through decompression distilation before using, it is made into the monomer that mass concentration is 7% molten
Liquid, pours in above-mentioned vessel so that it is do not had the surface of film, graft reaction occurs under the conditions of ultraviolet radiation, produces grafting poly-
Compound, with the surface that ethyl acetate is solvent monomer flushing membrane after taking-up, then rinses with experimental water, is placed in drying baker 55 DEG C
Freeze-day with constant temperature is to constant weight, and recording its weight is G2, it is described modified poly (ether-sulfone) NF membrane, the hydrophobicity of film can be improved and resist micro-
Biodegradability and expand its pH range；The photo-grafting rate of described modified poly (ether-sulfone) NF membrane can be come by below equation
Characterize:Described advanced treatment apparatus 15 is built with filler, and described filler is divided into two-layer, upper strata
For activated carbon, lower floor is modified high-molecular chelating agent, and activated carbon and high-molecular chelating agent are respectively provided with the strongest adsorption activity, right
The materials such as the heavy metal in waste water have the advantages that adsorbance is big, speed is fast, adsorption efficiency is high, through the dirt that its advanced treating is crossed
Water can be directly used for life closet flushing, greening treegarden irrigation etc.；Described modified high-molecular chelating agen is modified animal feather, its
Method of modifying is: collects animal feather and cleans up, with being dipped in after deionized water rinsing in sig water, CS2 solution, and 50-
Soaking 15h at 60 DEG C, then wash except surface residue with deionized water, obtain modified animal feather, modified animal feather comes
Source is enriched, it is easy to degraded, and preparation technology is simple, and the heavy metal of variable concentrations is had good adsorption.
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from the flesh and blood of the present invention, and this area skill
Art personnel it is conceivable that any deformation, improve, replace and each fall within the scope of the present invention.
Claims (8)
1. a new membrane bioreactor sewage water processing means, it is characterised in that include following assembly: aspirate water pump (1), enter
Water pipe (3), bioreactor (4), gas explosion device (5), aeration control system (7), sewage backflow pipeline (8), membrane reactor
(9), ultrasonic vibration box (10), supersonic generator (11), membrane module (12), outlet pipe one (13), advanced treatment apparatus (15),
Outlet pipe two (16)；Also include three water level controllers: water level controller one (2), water level controller two (6), water level controller
Three (14).Described bioreactor (4) top is connected with suction water pump (1), and described water level controller one (2) controls water inlet pipe
(3) inflow, described gas explosion device (5) is arranged on bioreactor (4) bottom, and described gas explosion device (5) is inner is provided with water
Level controller two (6), described ultrasonic vibration box (10) is arranged between the inwall of membrane reactor (9) and membrane module (12), ultrasonic
Ripple Vibration Box (10) is connected by supersonic generator (11) signal that holding wire is outside with membrane reactor (9), described membrane reactor
(9) bottom is provided with outlet pipe one (13), and described outlet pipe one (13) is connected with advanced treatment apparatus (15).
2. a kind of new membrane bioreactor sewage water processing means as claimed in claim 1, it is characterised in that the described film of institute is raw
Thing reactor is separate film biological reactor, and the regulation of described water level controller one (2) controls to enter the dirt of membrane bioreactor
The water yield.
3. a kind of new membrane bioreactor sewage water processing means as claimed in claim 1, it is characterised in that at membrane reactor
(9) added with Powdered Activated Carbon in.
4. a kind of new membrane bioreactor sewage water processing means as claimed in claim 1, it is characterised in that described gas explosion fills
Putting (5) is to regulate aeration rate by aeration control system (7) and water level controller two (6), and described water level controller two (6) is logical
Cross and measure the size of dissolved oxygen amount to regulate the height of water level.
5. a kind of new membrane bioreactor sewage water processing means described in claim 1, it is characterised in that described membrane module
(12) in, film is modified poly (ether-sulfone) NF membrane, and its method of modifying is: cleaned up by polyether sulfone filtering film, is placed in drying baker 40
DEG C freeze-day with constant temperature is to constant weight, and recording its weight is G1, put in vessel, with methyl methacrylate as grafted monomers, before using
To it through decompression distilation, it is made into the monomer solution that mass concentration is 7%, pours in above-mentioned vessel so that it is do not had the table of film
Face, under the conditions of ultraviolet radiation occur graft reaction, produce graft polymers, after taking-up with ethyl acetate be solvent monomer punching
Washing the surface of film, then rinse with experimental water, be placed in drying baker that 55 DEG C of freeze-day with constant temperature are to constant weight, recording its weight is G2, i.e.
For described modified poly (ether-sulfone) NF membrane.
6. a kind of new membrane bioreactor sewage water processing means as claimed in claim 5, it is characterised in that described modification gathers
The photo-grafting rate of ether sulfone NF membrane can characterize by below equation:
7. a kind of new membrane bioreactor sewage water processing means as claimed in claim 1, it is characterised in that described depth
Reason device (15) is built with filler, and described filler is divided into two-layer, and upper strata is activated carbon, and lower floor is modified high-molecular chelating agent.
8. a kind of new membrane bioreactor sewage water processing means as claimed in claim 1, it is characterised in that described modified high
Molecule chelating agen is modified animal feather, and its method of modifying is: collects animal feather and cleans up, incites somebody to action with after deionized water rinsing
It immerses sig water, CS2In solution, soak 15h at 50-60 DEG C, then wash except surface residue with deionized water, changed
Property animal feather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701292.0A CN106186545B (en) | 2016-08-19 | 2016-08-19 | A kind of new membrane bioreactor sewage water processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701292.0A CN106186545B (en) | 2016-08-19 | 2016-08-19 | A kind of new membrane bioreactor sewage water processing unit |
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| CN106186545A true CN106186545A (en) | 2016-12-07 |
| CN106186545B CN106186545B (en) | 2019-02-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586702A (en) * | 2004-07-29 | 2005-03-02 | 复旦大学 | Method for preparing nano filter membrane using surface crafting technology |
| CN101376538A (en) * | 2007-08-29 | 2009-03-04 | 亚蕾 | Powdered activated charcoal strengthened built-in beam type membrane bioreactor |
| CN104556364A (en) * | 2014-12-24 | 2015-04-29 | 辽宁北方环境保护有限公司 | Membrane bioreactor device for retarding membrane pollution and sewage treatment method |
| CN204509048U (en) * | 2015-02-15 | 2015-07-29 | 新疆思凯压力容器制造有限公司 | A kind of waste disposal plant adopting membrane bioreactor |
| CN104903257A (en) * | 2012-12-07 | 2015-09-09 | 通用电气公司 | Use of activated carbon in membrane bioreactor |
-
2016
- 2016-08-19 CN CN201610701292.0A patent/CN106186545B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586702A (en) * | 2004-07-29 | 2005-03-02 | 复旦大学 | Method for preparing nano filter membrane using surface crafting technology |
| CN101376538A (en) * | 2007-08-29 | 2009-03-04 | 亚蕾 | Powdered activated charcoal strengthened built-in beam type membrane bioreactor |
| CN104903257A (en) * | 2012-12-07 | 2015-09-09 | 通用电气公司 | Use of activated carbon in membrane bioreactor |
| CN104556364A (en) * | 2014-12-24 | 2015-04-29 | 辽宁北方环境保护有限公司 | Membrane bioreactor device for retarding membrane pollution and sewage treatment method |
| CN204509048U (en) * | 2015-02-15 | 2015-07-29 | 新疆思凯压力容器制造有限公司 | A kind of waste disposal plant adopting membrane bioreactor |
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Address after: 262700 Jin Guang street, Shouguang City, Weifang, Shandong Province, No. 1299 Applicant after: Dong Jinping Address before: Room 502, Unit 3, Building 14, 69 Jinguang East Street, Weifang City, Shandong Province, 262799 Applicant before: Dong Jinping |
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Address after: 262700 Weifang science and Technology College, Xueyuan Road 166, Shouguang, Shandong Patentee after: Dong Jinping Address before: 262700 Jin Guang street, Shouguang City, Weifang, Shandong Province, No. 1299 Patentee before: Dong Jinping |
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| 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: 20190212 Termination date: 20190819 |