CN203922844U - Process the biomass filler anaerobic filter tank of oxidation state pollutent - Google Patents
Process the biomass filler anaerobic filter tank of oxidation state pollutent Download PDFInfo
- Publication number
- CN203922844U CN203922844U CN201420179189.0U CN201420179189U CN203922844U CN 203922844 U CN203922844 U CN 203922844U CN 201420179189 U CN201420179189 U CN 201420179189U CN 203922844 U CN203922844 U CN 203922844U
- Authority
- CN
- China
- Prior art keywords
- filter
- water
- filtering layer
- height
- water outlet
- 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
- 230000003647 oxidation Effects 0.000 title claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 22
- 239000002028 Biomass Substances 0.000 title claims abstract description 13
- 239000000945 filler Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000001914 filtration Methods 0.000 claims abstract description 50
- 239000002245 particle Substances 0.000 abstract description 48
- 239000000463 material Substances 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000006722 reduction reaction Methods 0.000 description 16
- 239000002351 wastewater Substances 0.000 description 8
- WVCHIGAIXREVNS-UHFFFAOYSA-N 2-hydroxy-1,4-naphthoquinone Chemical compound C1=CC=C2C(O)=CC(=O)C(=O)C2=C1 WVCHIGAIXREVNS-UHFFFAOYSA-N 0.000 description 7
- CSFWPUWCSPOLJW-UHFFFAOYSA-N hydroxynaphthoquinone Natural products C1=CC=C2C(=O)C(O)=CC(=O)C2=C1 CSFWPUWCSPOLJW-UHFFFAOYSA-N 0.000 description 7
- 230000001186 cumulative effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- -1 nitrate Chemical class 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 101000925662 Enterobacteria phage PRD1 Endolysin Proteins 0.000 description 1
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N benzo-alpha-pyrone Natural products C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 150000004775 coumarins Chemical class 0.000 description 1
- 238000005695 dehalogenation reaction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 150000005826 halohydrocarbons Chemical class 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003462 zymogenic effect Effects 0.000 description 1
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a kind of biomass filler anaerobic filter tank of processing oxidation state pollutent.The utility model biological filter water outlet arranges internal circulation system, adopts water circulating pump that water outlet is back to water-in; From water-in to water outlet water (flow) direction, in biological filter, be provided with successively into water buffer zone, filter district, water outlet buffer zone, filter district comprises first, second, third and fourth filtering layer, is highly respectively 20 ﹪, 50 ﹪, 20 ﹪ and 10 ﹪ of filtrating area; First, second and third filtering layer biological particles discrete distribution is in inert particle, and wherein the volume content of biological particles is different, accounts for respectively 20 ﹪～50 ﹪, and in 10 ﹪～30 ﹪ and the 5%～15%, four filtering layer, filtering material is inert particle.The utlity model has simple to operate, efficient, the advantage such as working cost is low, non-secondary pollution, reach the object of synchronous minimizing He " treatment of wastes with processes of wastes against one another " of natural plant biological matter.
Description
Technical field
The utility model belongs to sewage treatment area in environment protection, specifically relates to a kind of biomass filler anaerobic filter tank of processing oxidation state pollutent.
Background technology
In trade effluent and sanitary sewage, oxidation state pollutent comprises the organic compound such as nitro class, azo, halogenated hydrocarbon, the inorganic anions such as nitrate, vitriol, and the heavy metal ion such as Cr (VI), AS (V).Oxidation state pollutent has greater environmental impacts.At present the most economical effective treatment process of oxidation state pollutent is biological process, and it generally need to first reduce processing in treating processes.The rate of reduction of oxidation state pollutent is lower, is that it transforms, the rate-limiting step of degradation process, and therefore, the reduction of oxidation state pollutent is its efficient key of removing.
Containing in the biological treatment system of oxidation state pollutent waste water, easily utilize carbon source and electron donor to be the limiting factor that its reduction is removed always, remarkable to process influences such as above-mentioned denitrification denitrogenation, nitroreduction, sulfate reduction, reduction-decolor, reductive dehalogenation, reduction and detoxications (heavy metal).In anaerobic system, the reducing power (NAD (P) H) that microbiological oxidation electron donor forms can be given final electron acceptor(EA) (oxidized compound) by electron shuttle systems communicate, makes it be reduced to lower valency material.In order to improve the reduction of oxidation state pollutent, remove speed, can consider to add quinonyl class, flavin redox mediators and as electron transit mediator, carry out the reduction removal of oxidation state pollutent, rate of reduction can improve more than several times to tens times.Yet the most of redox mediator adopting is at present synthetic, continuing to add not only increases working cost, and its potential environmental risk is also difficult to assessment.Therefore,, for preventing the invalid loss of redox mediator, utilize at present the materials such as resin, metal oxide nanoparticles, embedding medium to being fixed of solvability redox mediator.Although immobilization redox mediator can improve the validity of its utilization to a certain extent, immobilization cost has still limited their widespread use.
Sea Na plant biomass complicated component, contains the number of chemical compositions such as coumarins, carbohydrate, quinones (lawsone), and wherein the content of lawsone can be up to 1.5 ﹪.Lawsone is the effective constituent of natural dyestuff in extra large Na plant, is also a kind of efficient redox mediator, can catalysis biology/chemical reduction process of the multiple oxidation state pollutents such as mediation Azo, Cr (VI).Under anaerobic condition, extra large Na plant biomass can form carbohydrate, protein and H under lytic enzyme and zymogenic effect
2, the multiple electron donor such as VFAs; May there is the stripping of the chemical substances such as lawsone (free state) simultaneously.Therefore, if extra large Na plant biomass is as the solid-state carbon source of oxidation state pollutent reduction, can not only provide abundant electron donor, can also provide lawsone as electron transit mediator, the biology/chemical reduction of oxidation state pollutent.
It is PVC material or other mineral-type inert filler that more filler is used in current biological filter, and these fillers have the advantages such as chemical stability is good, inexpensive.But there is the problems such as microorganism " biofilm " difficulty, processing efficiency be not good, particularly for the oxidation state pollutent of difficult degradation, if lack the electron donors such as carbon source and redox mediator in waste water, by the reduction effect that is difficult to reach desirable.
Summary of the invention
The purpose of this utility model is in order to overcome the limiting factor that oxidized compound rate of reduction is low, and a kind of biomass filler anaerobic filter tank of processing oxidation state pollutent is provided.
The biological filter that the utility model adopts is conventional biological filter;
One end of biological filter is provided with water inlet A, and the other end is provided with water outlet B, and water outlet B arranges internal circulation system, adopts water circulating pump that water outlet is back to water inlet A; From water inlet A to water outlet B water (flow) direction, in biological filter, be provided with successively into water buffer zone, filter district, water outlet buffer zone, and be provided with supporting plate between water inlet buffer zone and filter district, between filter district and water outlet buffer zone, be provided with supporting plate; From water inlet A to water outlet B water (flow) direction, described filter district comprises the first filtering layer, the second filtering layer, the 3rd filtering layer, the 4th filtering layer successively, is provided with supporting plate, for separating each filtering layer between adjacent two filtering layers; The height of the first filtering layer is 20 ﹪ in filter district, and the height of the second filtering layer is 50 ﹪ in filter district, and the height of the 3rd filtering layer is 20 ﹪ in filter district, and the height of the 4th filtering layer is 10 ﹪ in filter district;
Described supporting plate is vesicular structure, and aperture is less than 2mm;
The height of described water inlet buffer zone accounts for 8 ﹪ of biological filter total height, and the height of water outlet buffer zone accounts for 10 ﹪ of biological filter total height, and the height in filter district accounts for 82 ﹪ of biological filter total height.
In the first filtering layer, biological particles is dispersed is distributed in inert particle, and biological particles accounts for 20 ﹪～50 ﹪ of biological particles and inert particle cumulative volume;
In the second filtering layer, biological particles is dispersed is distributed in inert particle, and biological particles accounts for 10 ﹪～30 ﹪ of biological particles and inert particle cumulative volume;
In the 3rd filtering layer, biological particles is dispersed is distributed in inert particle, and biological particles accounts for 5 ﹪～15 ﹪ of biological particles and inert particle cumulative volume;
In the 4th filtering layer, filtering material is inert particle;
Described biological particles is one or more in the flower, stem, leaf, seed of natural sea Na plant, and particle diameter is 2～10 mm, when being multiple, ratio be arbitrarily than;
Described inert particle is one or more in haydite, gravel, volcanics, gac, zeolite, slag, resin, and particle diameter is 3～20mm, when being multiple, ratio be arbitrarily than.
As preferably, described biological particles is selected stem and the seed of extra large Na plant, and the length of stem is 1～10mm, and seed demand is at 121 ℃, deactivation 1h under 0.12MPa.
In the material that in filter of the present utility model district, each filtering layer adopts, biological particles volume content reduces gradually with advancing of water (flow) direction; One of each filtering layer material raw material natural sea Na plant is as solid-state carbon source, for the reduction of oxidized compound provides abundant electron donor and electron transit mediator (lawsone), strengthens its biology/chemical reduction.The pH value of influent waste water is controlled within the scope of 6～8 partial neutral.Partial neutral scope and good pH surge capability can prevent under alkaline condition organic Fast Stripping in biomass on the one hand, reach the slowly-releasing regulation and control technology of electron donor and lawsone; Can prevent on the other hand the generation of the acidifying phenomenon of anaerobic biofilter.
The utility model is applicable to the removal of oxidation state pollutent in waste water, specifically can relate to dyeing waste water, leather-making waste water containing azoic dyestuff and Cr (VI), containing trade effluent and the sanitary sewage of nitrate and vitriol, containing the petrochemical wastewater of halohydrocarbon, containing heavy metal wastewater therebies such as Cr (VI) etc.
Water outlet arranges internal reflux can improve the flow velocity in biological filter, improves the rate of mass transfer of pollutent and electron donor, redox mediators.
Each filtering layer of the utility model by preparing the natural plant biological matter of certain content in inert particle, and control water inlet pH value, the strengthening reduction removal that water outlet internal reflux reaches oxidation state pollutent is set, there is the advantages such as simple to operate, efficient, working cost is lower, non-secondary pollution, can reach the object of synchronous minimizing He " treatment of wastes with processes of wastes against one another " of natural plant biological matter simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of biomass filler anaerobic of the present utility model filter tank (under to stream) vertical section structure schematic diagram;
Fig. 2 is another kind of biomass filler anaerobic filter tank of the present utility model (upward flow) vertical section structure schematic diagram;
In figure: A, water-in; B, water outlet; 1, water inlet buffer zone; 2, water outlet buffer zone; 3, the first filtering layer; 4, the second filtering layer; 5, the 3rd filtering layer; 6, the 4th filtering layer; 7, supporting plate.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, but protection domain of the present utility model is not limited to this.
As shown in Figure 1, 2, the biological filter that the utility model adopts is conventional biological filter
One end of biological filter is provided with water inlet A, and the other end is provided with water outlet B, and water outlet B arranges internal circulation system, adopts water circulating pump that water outlet is back to water inlet A; From water inlet A to water outlet B water (flow) direction, in biological filter, be provided with successively into water buffer zone 1, filter district, water outlet buffer zone 2, and between water inlet buffer zone 1 and filter district, be provided with supporting plate 7, between filter district and water outlet buffer zone 2, be provided with supporting plate 7; From water inlet A to water outlet B water (flow) direction, described filter district comprises the first filtering layer 3, the second filtering layer 4, the 3rd filtering layer 5, the 4th filtering layer 6 successively, is provided with supporting plate 7, for separating each filtering layer between adjacent two filtering layers; The height of the first filtering layer 3 is 20 ﹪ in filter district, and the height of the second filtering layer 4 is 50 ﹪ in filter district, and the height of the 3rd filtering layer 5 is 20 ﹪ in filter district, and the height of the 4th filtering layer 6 is 10 ﹪ in filter district;
Described supporting plate 7 is vesicular structure, and aperture is less than 2mm;
The height of described water inlet buffer zone 1 accounts for 8 ﹪ of biological filter total height, and the height of water outlet buffer zone 2 accounts for 10 ﹪ of filter tank total height, and the height in filter district accounts for 82 ﹪ of biological filter total height.
In the first filtering layer, biological particles is dispersed is distributed in inert particle, and biological particles accounts for 20 ﹪～50 ﹪ of biological particles and inert particle cumulative volume;
In the second filtering layer, biological particles is dispersed is distributed in inert particle, and biological particles accounts for 10 ﹪～30 ﹪ of biological particles and inert particle cumulative volume;
In the 3rd filtering layer, biological particles is dispersed is distributed in inert particle, and biological particles accounts for 5 ﹪～15 ﹪ of biological particles and inert particle cumulative volume;
In the 4th filtering layer, filtering material is inert particle;
Described biological particles is one or more in the flower, stem, leaf, seed of natural sea Na plant, and particle diameter is 2～10 mm, when being multiple, ratio be arbitrarily than;
Described inert particle is one or more in haydite, gravel, volcanics, gac, zeolite, slag, resin, and particle diameter is 3～20mm, when being multiple, ratio be arbitrarily than.
As preferably, described biological particles is selected stem and the seed of extra large Na plant, and the length of stem is 1～10mm, and seed demand is at 121 ℃, deactivation 1h under 0.12MPa.
Work implementation process:
Fig. 1 operation scheme is lower to stream, Fig. 2 operation scheme is upward flow, it is 6～8 that water inlet pH value is controlled in biological filter, hydraulic detention time is 2～30 h, in order to ensure flow turbulence in filter tank, biological filter water outlet arranges internal recycle, and reflux ratio is 50～300 ﹪, thereby raising flow velocity, is conducive to mass transfer process.
Claims (2)
1. process the biomass filler anaerobic filter tank of oxidation state pollutent, it is characterized in that one end of biological filter is provided with water inlet A, the other end is provided with water outlet B, and water outlet B arranges internal circulation system, adopts water circulating pump that water outlet is back to water inlet A; From water inlet A to water outlet B water (flow) direction, in biological filter, be provided with successively into water buffer zone, filter district, water outlet buffer zone, and be provided with supporting plate between water inlet buffer zone and filter district, between filter district and water outlet buffer zone, be provided with supporting plate; From water inlet A to water outlet B water (flow) direction, described filter district comprises the first filtering layer, the second filtering layer, the 3rd filtering layer, the 4th filtering layer successively, between adjacent two filtering layers, is provided with supporting plate; The height of the first filtering layer is 20 ﹪ of filter district height, and the height of the second filtering layer is 50 ﹪ of filter district height, and the height of the 3rd filtering layer is 20 ﹪ of filter district height, and the height of the 4th filtering layer is 10 ﹪ of filter district height;
The height of described water inlet buffer zone accounts for 8 ﹪ of biological filter total height, and the height of water outlet buffer zone accounts for 10 ﹪ of biological filter total height, and the height in filter district accounts for 82 ﹪ of biological filter total height.
2. the biomass filler anaerobic filter tank of processing oxidation state pollutent as claimed in claim 1, is characterized in that supporting plate is vesicular structure, and aperture is less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179189.0U CN203922844U (en) | 2014-04-14 | 2014-04-14 | Process the biomass filler anaerobic filter tank of oxidation state pollutent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179189.0U CN203922844U (en) | 2014-04-14 | 2014-04-14 | Process the biomass filler anaerobic filter tank of oxidation state pollutent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203922844U true CN203922844U (en) | 2014-11-05 |
Family
ID=51818700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179189.0U Expired - Fee Related CN203922844U (en) | 2014-04-14 | 2014-04-14 | Process the biomass filler anaerobic filter tank of oxidation state pollutent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203922844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529091A (en) * | 2015-01-08 | 2015-04-22 | 北京中瑞佳亿环境科技有限公司 | Sewage treatment device and method for micro-power multi-medium fixed biological filter |
| CN106219748A (en) * | 2016-09-21 | 2016-12-14 | 南京工业大学 | Multistage microfluidization collection depth filtration improved generation anaerobic filter |
-
2014
- 2014-04-14 CN CN201420179189.0U patent/CN203922844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529091A (en) * | 2015-01-08 | 2015-04-22 | 北京中瑞佳亿环境科技有限公司 | Sewage treatment device and method for micro-power multi-medium fixed biological filter |
| CN106219748A (en) * | 2016-09-21 | 2016-12-14 | 南京工业大学 | Multistage microfluidization collection depth filtration improved generation anaerobic filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101700943A (en) | Printing and dyeing waste water advanced treatment recovery method | |
| CN103964571B (en) | A kind of biomass filler anaerobic filter tank processing oxidation state pollutent | |
| CN104478171B (en) | The process for reclaiming of a kind of municipal sewage and system | |
| CN104649517A (en) | Landscape water body circulating treatment process | |
| CN104529048A (en) | System and method for treating refractory organics | |
| CN102718326B (en) | Water eco-purification system and purification method thereof | |
| CN203474595U (en) | Device for recycling domestic sewage in colleges and universities | |
| CN203922844U (en) | Process the biomass filler anaerobic filter tank of oxidation state pollutent | |
| CN103073135B (en) | Method for recycling urban sewage | |
| CN102583774B (en) | Method utilizing natural manganese ore-microorganisms for co-treatment of micro pollutants difficult to degrade | |
| CN105753271A (en) | Biological filter-biological contact oxidation-steel slag absorption sewage treatment system and method for sewage treatment by utilizing system | |
| CN103601291A (en) | Method and denitrification infiltration system for treating sewage with low carbon-nitrogen ratio | |
| CN204737863U (en) | Landfill filtration liquid processing system | |
| CN204588950U (en) | Based on the biological sewage treatment device of activated carbon application technology | |
| CN103253836B (en) | A kind of percolate deep purifying treatment unit and method | |
| CN203754501U (en) | Built-in anoxic aerated filter | |
| CN203487008U (en) | Efficient sewage disposal device | |
| CN203295326U (en) | Integral processing system for restaurant waste water | |
| CN203976470U (en) | A kind of denitrification filtration system for the treatment of low carbon-nitrogen ratio sewage | |
| CN103395951B (en) | System capable of utilizing acid to neutralize slags and dehydrated aluminum sludge to treat nitrogenous wastewater and method thereof | |
| CN207143029U (en) | A kind of efficiently treatment of dyeing wastewater change system | |
| CN102557352B (en) | Method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration | |
| CN205151996U (en) | System for aeration biological treatment advanced treatment industrial waste water is united to ozone | |
| CN203440214U (en) | Industrial wastewater treatment system | |
| CN104229987A (en) | Method for removing nitrogen substance in water by biological denitrification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |