CN101456639B - Apparatus and method for processing hardly degradable organic wastewater - Google Patents
Apparatus and method for processing hardly degradable organic wastewater Download PDFInfo
- Publication number
- CN101456639B CN101456639B CN2008102206770A CN200810220677A CN101456639B CN 101456639 B CN101456639 B CN 101456639B CN 2008102206770 A CN2008102206770 A CN 2008102206770A CN 200810220677 A CN200810220677 A CN 200810220677A CN 101456639 B CN101456639 B CN 101456639B
- Authority
- CN
- China
- Prior art keywords
- reaction column
- water
- organic wastewater
- pipe
- difficult degradation
- 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
Images
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to the technical field of sewage treatment, in particular to a device and a method for treating difficultly degradable organic wastewater. The device mainly comprises an ozone generator, an ultrasonic generator, a gas-liquid mixing pump and a reaction column, and adopts the ozone-ultrasound-nanometer TiO2 photocatalysis coupling technique to treat the difficultly degradable organic wastewater. The method comprises: absorbing, mixing and dissolving the wastewater and the ozone by the gas-liquid mixing pump, directly sending the mixture to an ultrasound-nanometer photocatalysis reaction column, and making the wastewater fully reacted in the reaction column. The ozone-ultrasound-nanometer TiO2 photocatalysis coupling technique has the advantages of simple equipment and process, easy operation, no secondary pollution, and stable and reliable treatment effects, and the rate of removing CODcr reaches more than 90 percent, the BOD5/CODcr value reaches 0.63, the biodegradability of the wastewater is greatly improved, and the industrialized application is easily realized.
Description
Technical field:
The present invention relates to technical field of sewage, particularly a kind of device and method of handling organic wastewater with difficult degradation thereby.
Background technology:
At present, organic wastewater with difficult degradation thereby mainly comes from a large amount of waste water that discharge in the industrial and agricultural production process, mainly comprises agricultural chemicals waste water, waste water from dyestuff, paper waste and coking chemical waste water etc.Organic wastewater with difficult degradation thereby has the water quality complexity, and hazardness is big, COD
CrAnd BOD
5Height, characteristics such as biodegradability difference, its influence to environment has caused huge harm, and the problem of environmental pollution of discharge has caused the great attention of national governments and environmental administration.
Treatment process for organic wastewater with difficult degradation thereby mainly contains physics method (absorption, extraction, membrane technique), biological process and chemical process both at home and abroad.When the organic wastewater with difficult degradation thereby that purifies high density pollution, when the physics method is powerless, some biological methods are paid the utmost attention to usually, the biological process technology reach its maturity and expense lower, but this method is to the toxic substance sensitivity, can cause organism waste water degraded tissue devitalization, need effectively promote the effect and the resistance to poison of biological wastewater treatment, promote its biological decomposition efficient to the difficult decomposition compound of biology, but biological treatment effect promote be difficult to grasp and uncertainty very high, must seek other technology (as high-level oxidation technology etc.) and be improved.Though and can make it be converted into harmless or separable material by the chemical nature that chemical reaction changes pollutent when adopting chemical process to handle, on method, exist inevitable secondary pollution problem.
High-level oxidation technology is because its unique charm becomes the domestic and international research focus in field of waste water treatment in recent years.It mainly is to utilize the high reactivity hydroxyl radical free radical (to be mainly-OH) attack larger molecular organics and reaction with it, to reach the organic purpose of oxidation removal thereby destroy the organic molecule structure, realize oxide treatment efficiently.Adopt high-level oxidation technology to handle the development trend that bio-refractory organic waste water is wastewater treatment in the future, but hinder the subject matter of its application and be that the running cost of high-level oxidation technology is also than higher present stage.In order to overcome this problem, increasing advanced oxidation coupling technique grows up gradually, as photochemical degradation (UV/O
3), TiO
2Photochemical catalysis (TiO
2/ UV) and chemical oxidation of gold (O
3/ H
2O
2, H
2O
2/ Fe
2+) etc., the purpose of these advanced oxidation coupling techniques is exactly to realize the hydroxyl radical free radical of the generation strong oxidizing property of maximum, but the treatment effect of the coupling technique of having reported is still waiting to improve, and therefore, must need to develop new advanced oxidation coupling treatment process and device thereof.
Summary of the invention:
One of purpose of the present invention is at the deficiencies in the prior art, and provides a kind of treatment effect good, ozone-ultrasonic wave that cost is low-nano-TiO
2The photochemical catalysis coupling technique is handled the device of organic wastewater with difficult degradation thereby.
For achieving the above object, the technical scheme of the technical program employing is:
A kind of device of handling organic wastewater with difficult degradation thereby comprises controlling box, filling pump, water inlet pipe, ozonizer, gas-liquid mixing pump, reaction column, ultrasonic generator, ultraviolet lamp, ceramic honeycomb strumbox, rising pipe and blow-off pipe; Described controlling box is connected with filling pump, ozonizer, gas-liquid mixing pump, ultrasonic generator and ultraviolet lamp respectively; Filling pump is connected with the water-in of water inlet pipe, and ozonizer is connected with water inlet pipe; The water outlet of water inlet pipe is connected with reaction column, is provided with gas-liquid mixing pump between the water outlet of water inlet pipe and the reaction column; Be provided with ultraviolet lamp, ultrasonic generator and water outlet in the reaction column, the reaction column internal surface also is provided with TiO
2Photocatalysis coating, the bottom of reaction column also is provided with blow-off pipe; The water outlet of reaction column is connected with rising pipe, and rising pipe is connected with the ceramic honeycomb strumbox.
Described water inlet pipe is provided with under meter.
Described under meter bottom is provided with sewage draining exit, and sewage draining exit is equipped with wash water valve.
Described blow-off pipe is equipped with wash water valve.
Described water inlet pipe is provided with throttling valve, and throttling valve is arranged on the front end of under meter.
The top and bottom of described reaction column are respectively arranged with vision slit.
Described ceramic honeycomb strumbox is provided with viewing window.
The beneficial effect of the technical program is: the technical program comprises controlling box, filling pump, water inlet pipe, ozonizer, gas-liquid mixing pump, reaction column, ultrasonic generator, ultraviolet lamp, ceramic honeycomb strumbox, rising pipe and blow-off pipe; Described controlling box is connected with filling pump, ozonizer, gas-liquid mixing pump, ultrasonic generator and ultraviolet lamp respectively; Filling pump is connected with the water-in of water inlet pipe, and ozonizer is connected with water inlet pipe; The water outlet of water inlet pipe is connected with reaction column, is provided with gas-liquid mixing pump between the water outlet of water inlet pipe and the reaction column; Be provided with ultraviolet lamp, ultrasonic generator and water outlet in the reaction column, the reaction column internal surface also is provided with TiO
2Photocatalysis coating, the bottom of reaction column also is provided with blow-off pipe; The water outlet of reaction column is connected with rising pipe, and rising pipe is connected with the ceramic honeycomb strumbox, when adopting said structure to handle organic wastewater with difficult degradation thereby, makes waste water carry out ozone-ultrasonic wave-nano-TiO in reaction column
2The symphyogenetic oxidizing reaction of photochemical catalysis, treatment effect is good, and cost is low, can not cause secondary pollution.Be provided with under meter and can measure the flow that flows through water inlet pipe, provide convenience to treatment people.Blow-off pipe is equipped with wash water valve, can open wash water valve when pollutent precipitates, and by sewage draining exit pollutent is discharged.Be provided with throttling valve, the convenient flow size of regulating, easy to use.The top and bottom of reaction column are respectively arranged with vision slit, and whether the convenient whether works better of ultraviolet lamp of observing is provided with viewing window and is used for observing rising pipe and has water to discharge.
Two of purpose of the present invention is at the deficiencies in the prior art, and provides a kind of treatment effect good, ozone-ultrasonic wave that cost is low-nano-TiO
2The photochemical catalysis coupling technique is handled the method for organic wastewater with difficult degradation thereby.
For achieving the above object, the technical scheme of the technical program employing is:
A kind of method of handling organic wastewater with difficult degradation thereby may further comprise the steps:
A, start filling pump, waste water is injected water inlet pipe by controlling box control;
B, when waste water from rising pipe after the normal water outlet, open ozonizer earlier, open ozone valve subsequently;
C, open gas-liquid mixing pump, waste water and ozone are mixed, send in the reaction column after the dissolving;
Behind D, the suitable flow of adjusting, open the TiO of ultraviolet lamp activating reaction post internal surface
2Photocatalysis coating, ultrasonic generator, waste water carried out oxide treatment after, handle that remaining ozone is absorbed by the ceramic honeycomb strumbox in the water of back;
Water after E, the processing discharges from rising pipe, and refuse discharges from blow-off pipe.
Described oxidation time is 〉=0.5 hour.
Described method can be used for treatment of dyeing and printing, paper waste or coking chemical waste water.
The beneficial effect of the technical program is: when adopting aforesaid method to handle organic wastewater with difficult degradation thereby, compared with prior art have the following advantages:
First handles the efficient height of organic wastewater with difficult degradation thereby, carries out ozone-ultrasonic wave-nano-TiO
2The photochemical catalysis combined action can be removed various toxic organic matters;
The second, technology investment is less, and it is lower to handle the waste water cost, applies easily;
The 3rd, system is comparatively simple, and operation requires lower, and stability is good.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Embodiment:
The following examples and application examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
Embodiment 1:
See Fig. 1, a kind of device of handling organic wastewater with difficult degradation thereby, comprise controlling box 1, filling pump 2, water inlet pipe 3, ozonizer 4, gas-liquid mixing pump 5, reaction column 6, ultrasonic generator 7, ultraviolet lamp 8, ceramic honeycomb strumbox 9, rising pipe 10 and blow-off pipe 11, described controlling box 1 is connected with filling pump 2, ozonizer 4, gas-liquid mixing pump 5, ultrasonic generator 7 and ultraviolet lamp 8 respectively; Filling pump 2 is connected with the water-in 31 of water inlet pipe 3, and ozonizer 4 is connected with water inlet pipe 3; The water outlet 32 of water inlet pipe 3 is connected with reaction column 6, is provided with gas-liquid mixing pump 5 between the water outlet 32 of water inlet pipe 3 and the reaction column 6; Be provided with ultraviolet lamp 8, ultrasonic generator 7 and water outlet 63 in the reaction column 6, reaction column 6 internal surfaces also are provided with TiO
2Photocatalysis coating 61, the bottom of reaction column 6 also is provided with blow-off pipe 11; The water outlet 63 of reaction column 6 is connected with rising pipe 10, and rising pipe 10 is connected with ceramic honeycomb strumbox 9.
Described water inlet pipe 3 is provided with under meter 33, and under meter 33 can be measured the flow that flows through water inlet pipe 3, makes treatment people to operate, to debug according to flow, and is easy to use.
Described under meter 33 bottoms are provided with sewage draining exit 331, and sewage draining exit 331 is equipped with wash water valve 332.When the pollutent of under meter 33 precipitation more for a long time, can open wash water valve 332, by sewage draining exit 331 pollutent is discharged.
Described blow-off pipe 11 is equipped with wash water valve 62, when the pollutent of reaction column 6 precipitates, can open wash water valve 62 pollutent is discharged.
Described water inlet pipe 3 is provided with throttling valve 34, and throttling valve 34 is arranged on the front end of under meter 33, the size of using throttling valve 34 can regulate flow, when flow hour, throttling valve can be transferred big, augmented flow; When flow is big, throttling valve can be turned down, reduce flow, easy to use.
The top and bottom of described reaction column 6 are respectively arranged with vision slit 64, are arranged on the working condition that the upper end vision slit 64 of reaction column 6 can be used for observing ultraviolet lamp; Be arranged on the working condition that the lower end vision slit 64 of reaction column 6 can be used for observing ultrasonic generator 7, easy to use.
Described ceramic honeycomb strumbox 9 is provided with viewing window 91.Whether viewing window 91 is used for observing rising pipe 10 drainings normal.
Embodiment 2:
A kind of method of handling organic wastewater with difficult degradation thereby may further comprise the steps:
A, start filling pump 2, waste water is injected water inlet pipe 3 by controlling box 1;
B, after rising pipe 10 normal water outlets, open earlier ozonizer 4, open ozone valve subsequently;
C, open gas-liquid mixing pump 5, mixed waste water and ozone are mixed, send in the reaction column after the dissolving;
Behind D, the suitable flow of adjusting, open the TiO of ultraviolet lamp 8 activating reaction posts 6 internal surfaces
2Photocatalysis coating 61, unlatching ultrasonic generator 7, after oxidation was handled in 0.5 hour, the remaining ozone for the treatment of water was absorbed by ceramic honeycomb strumbox 9;
From rising pipe 10 dischargings, refuse is from blow-off pipe 11 dischargings of reaction column 6 after oxidizing reaction is handled for E, treating water.
Application examples 1:
With method treatment of dyeing and printing of the present invention, self-control aniline waste water 100L (its COD
CrBe 8000～10000mg/L), start filling pump 1, aniline waste water is injected ozone-ultrasonic wave-nano-TiO
2The photocatalysis treatment system.Regulate throttling valve, after the normal water outlet of water outlet, open ozonizer, open ozone valve subsequently, opening nikuni pump subsequently attracts aniline waste water and ozone, mix, dissolve and directly high dissolution liquid is delivered in the reaction column, it is 0.5 hour that the re-adjustment throttling valve makes the reaction times to suitable flow, opens ultraviolet lamp, ultrasonic generator then.Take a sample after the water outlet, measure COD
CrBe that 730～1000mg/L and pH are 6～7, COD
CrClearance reach more than 90% BOD
5/ COD
CrValue reaches 0.63, and treatment effect is good.
Application examples 2:
(its CODcr is 9000～10000mg/L), and all the other conditions are with application examples 1, and phenolic waste water is through ozone-ultrasonic wave-nano-TiO except that self-control phenolic waste water 100L
2Photocatalysis technology was handled after 0.5 hour, COD
CrBe 800～1000mg/L, COD
CrClearance can reach more than 90%, BOD
5/ COD
CrValue reaches 0.67.
Certainly, the embodiment of the above, application examples, it is better embodiment of the present invention, be not to limit the scope of the present invention, so all equivalences of doing according to the described technology of the present patent application claim, treatment process and principle change or modify, and are included in the present patent application claim.
Claims (10)
1. a device of handling organic wastewater with difficult degradation thereby is characterized in that: comprise controlling box (1), filling pump (2), water inlet pipe (3), ozonizer (4), gas-liquid mixing pump (5), reaction column (6), ultrasonic generator (7), ultraviolet lamp (8), ceramic honeycomb strumbox (9), rising pipe (10) and blow-off pipe (11);
Described controlling box (1) is connected with filling pump (2), ozonizer (4), gas-liquid mixing pump (5), ultrasonic generator (7) and ultraviolet lamp (8) respectively;
Filling pump (2) is connected with the water-in (31) of water inlet pipe (3), and ozonizer (4) is connected with water inlet pipe (3);
The water outlet (32) of water inlet pipe (3) is connected with reaction column (6), is provided with gas-liquid mixing pump (5) between the water outlet (31) of water inlet pipe (3) and the reaction column (6);
Be provided with ultraviolet lamp (8), ultrasonic generator (7) and water outlet (63) in the reaction column (6), reaction column (6) internal surface also is provided with TiO
2Photocatalysis coating (61), the bottom of reaction column (6) also is provided with blow-off pipe (11);
The water outlet (63) of reaction column (6) is connected with rising pipe (10), and rising pipe (10) is connected with ceramic honeycomb strumbox (9).
2. a kind of device of handling organic wastewater with difficult degradation thereby according to claim 1 is characterized in that: described water inlet pipe (3) is provided with under meter (33).
3. a kind of device of handling organic wastewater with difficult degradation thereby according to claim 2 is characterized in that: described under meter (33) bottom is provided with sewage draining exit (331), and sewage draining exit (331) is equipped with wash water valve (332).
4. a kind of device of handling organic wastewater with difficult degradation thereby according to claim 1 is characterized in that: described blow-off pipe (11) is equipped with wash water valve (62).
5. a kind of device of handling organic wastewater with difficult degradation thereby according to claim 1 is characterized in that: described water inlet pipe (3) is provided with throttling valve (34), and throttling valve (34) is arranged on the front end of under meter (33).
6. a kind of device of handling organic wastewater with difficult degradation thereby according to claim 1 is characterized in that: the top and bottom of described reaction column (6) are respectively arranged with vision slit (64).
7. a kind of device of handling organic wastewater with difficult degradation thereby according to claim 1 is characterized in that: described ceramic honeycomb strumbox (9) is provided with viewing window (91).
8. method of handling organic wastewater with difficult degradation thereby is characterized in that: may further comprise the steps:
A, start filling pump (2), waste water is injected water inlet pipe (3) by controlling box (1) control;
B, after the normal water outlet, open ozonizer (4) from rising pipe (10) earlier, open ozone valve subsequently when waste water;
C, open gas-liquid mixing pump (5), waste water and ozone are mixed, send in the reaction column (6) after the dissolving;
Behind D, the suitable flow of adjusting, open the TiO of ultraviolet lamp (8) activating reaction post (6) internal surface
2Photocatalysis coating (61), ultrasonic generator (7), waste water carried out oxide treatment after, handle that remaining ozone is absorbed by ceramic honeycomb strumbox (9) in the water of back;
Water after E, the processing is from rising pipe (10) discharging, and refuse discharges from blow-off pipe (11).
9. a kind of method of handling organic wastewater with difficult degradation thereby according to claim 8, it is characterized in that: described oxidation time is 〉=0.5 hour.
10. a kind of method of handling organic wastewater with difficult degradation thereby according to claim 8, it is characterized in that: described method can be used for treatment of dyeing and printing, paper waste or coking chemical waste water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102206770A CN101456639B (en) | 2008-12-31 | 2008-12-31 | Apparatus and method for processing hardly degradable organic wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102206770A CN101456639B (en) | 2008-12-31 | 2008-12-31 | Apparatus and method for processing hardly degradable organic wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101456639A CN101456639A (en) | 2009-06-17 |
| CN101456639B true CN101456639B (en) | 2011-12-21 |
Family
ID=40767805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102206770A Expired - Fee Related CN101456639B (en) | 2008-12-31 | 2008-12-31 | Apparatus and method for processing hardly degradable organic wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101456639B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9427683B2 (en) | 2012-09-10 | 2016-08-30 | Wayne Fueling Systems Llc | Filter device and fuel dispensing system comprised thereof |
| CN103030244B (en) * | 2013-01-18 | 2014-07-23 | 上海润态环保工程技术有限公司 | Combined pretreatment method for industrial wastewater |
| CN103496761B (en) * | 2013-09-09 | 2015-12-23 | 河海大学常州校区 | Plasma body and ultrasonic combined water treatment device and technical process thereof |
| CN104192974B (en) * | 2014-09-23 | 2015-07-01 | 周佳瑜 | Device and method for decomposing 4-nonyl-phenoxyacetic acid |
| CN104803469A (en) * | 2015-05-15 | 2015-07-29 | 天津理工大学 | Ozone, ultraviolet light and ultrasonic wave synergistic wastewater treatment device and working method thereof |
| CN105819599B (en) * | 2016-05-12 | 2019-07-09 | 山东山大华特科技股份有限公司 | A kind of processing sewage advanced oxidation device and method |
| CN106365388A (en) * | 2016-11-08 | 2017-02-01 | 吴国霞 | High-salinity organic sewage treatment system based on high-grade oxidizing |
| CN112225399B (en) * | 2020-11-05 | 2022-05-31 | 生态环境部华南环境科学研究所 | Ecological pond system of pond rich water stable purification and retrieval and utilization |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2537706Y (en) * | 2002-02-10 | 2003-02-26 | 杨政宏 | Multiple high grade nano catalytic waste water treating device |
| CN2537707Y (en) * | 2002-02-11 | 2003-02-26 | 杨政宏 | Multiple high grade oxidation catalytic waste water treating device |
| CN201006844Y (en) * | 2007-02-07 | 2008-01-16 | 武汉大学 | Acousto-optic cooperated with ozone outside circulation wastewater treatment device |
-
2008
- 2008-12-31 CN CN2008102206770A patent/CN101456639B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2537706Y (en) * | 2002-02-10 | 2003-02-26 | 杨政宏 | Multiple high grade nano catalytic waste water treating device |
| CN2537707Y (en) * | 2002-02-11 | 2003-02-26 | 杨政宏 | Multiple high grade oxidation catalytic waste water treating device |
| CN201006844Y (en) * | 2007-02-07 | 2008-01-16 | 武汉大学 | Acousto-optic cooperated with ozone outside circulation wastewater treatment device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-351331A 2004.12.16 |
| 吴国枝等.超声、臭氧、光催化及其组合工艺处理苯酚废水.《工业用水与废水》.2007,第38卷(第5期),第40页2.2.3节. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101456639A (en) | 2009-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101456639B (en) | Apparatus and method for processing hardly degradable organic wastewater | |
| CN209456225U (en) | A kind of organic waste-water treating apparatus | |
| CN205088075U (en) | Integrated equipment that black smelly water was handled | |
| CN101402506A (en) | Process for treating dimethyl sulfoxide wastewater with photocatalysis and oxidization combined film bioreactor | |
| CN110713282B (en) | Laboratory organic waste liquid treatment method and system | |
| CN101570371A (en) | Pretreatment process method and device for removing aniline in wastewater through potassium ferrate | |
| CN110228898A (en) | A kind of technique of catalytic ozonation-MBR Combined Treatment coal chemical industrial waste water | |
| CN105417830B (en) | A kind of method of photoactivation oxidized organic wastewater production organic carbon fertilizer | |
| CN101759322A (en) | Production process for denim sewage treatment and pretreatment | |
| CN102432127B (en) | Advanced treatment system and method for biochemically hardly degradable organic wastewater | |
| CN205773918U (en) | Printing waste water processing system | |
| WO2014177031A1 (en) | Special palladium catalyst for sewage treatment and use thereof | |
| CN109678276A (en) | A kind of method of ozone flocculation combined treatment cattle manure biogas slurry | |
| CN206437986U (en) | A kind of sound, light, ozone coupling handle the device of organic wastewater | |
| CN202297284U (en) | Automatic control device for clean water treatment | |
| CN103951125A (en) | EDTA (ethylene diamine tetraacetic acid) cleaning waste liquid processing method and corresponding reaction device | |
| JP2008043841A (en) | Apparatus for treatment of sludge | |
| CN207391200U (en) | A kind of dyeing waste water near-zero release integral intelligent control process system | |
| CN102874913B (en) | Method and device for treating high-concentration acrylonitrile wastewater | |
| CN205892984U (en) | Production life effluent disposal system of photovoltaic energy enterprise | |
| CN201648187U (en) | Reusable laundry room sewage processing device | |
| CN108046513A (en) | Traditional Chinese medicine wastewater Treated sewage reusing processing system and method | |
| CN207760195U (en) | A kind of processing system of landfill leachate | |
| CN207619229U (en) | Water resource double-supply double-drainage circulation system | |
| CN209161746U (en) | A kind of reforged tobacco wastewater Treated sewage reusing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20121231 |