CN201212019Y - Cage type pollutant treatment device - Google Patents
Cage type pollutant treatment device Download PDFInfo
- Publication number
- CN201212019Y CN201212019Y CNU2008203005651U CN200820300565U CN201212019Y CN 201212019 Y CN201212019 Y CN 201212019Y CN U2008203005651 U CNU2008203005651 U CN U2008203005651U CN 200820300565 U CN200820300565 U CN 200820300565U CN 201212019 Y CN201212019 Y CN 201212019Y
- Authority
- CN
- China
- Prior art keywords
- cage
- net cage
- net
- wall
- chamber
- 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 - Lifetime
Links
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 13
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 239000000945 filler Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000706 filtrate Substances 0.000 claims abstract description 10
- 239000012764 mineral filler Substances 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 241000274582 Pycnanthus angolensis Species 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000011087 paperboard Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 238000011065 in-situ storage Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract description 2
- 238000005067 remediation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003673 groundwater Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- -1 gac Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 150000003016 phosphoric acids Chemical class 0.000 description 3
- 239000002594 sorbent Substances 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 229920002101 Chitin Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 230000002950 deficient Effects 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
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 241000040710 Chela Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Water Treatment By Sorption (AREA)
Abstract
The utility model relates to a pollutant treatment device of a net cage type, which comprises a wall body and active reaction filler in the wall body, wherein the wall body is of a structure of a net cage combined by layers, four walls of the net cage along the direction of a water flow are formed by enclosing cage plates made of a rigid compact sheet, and at least four layers of permeable separation nets are fixed in the net cage perpendicular to an upstream face and divide the interior of the net cage into at least three cage chambers; mineral filler is respectively filled in the water inlet cage chamber and the water outlet cage chamber, the active reaction filler is filled in the middle cage chamber, and the net cage extends towards the upstream direction to be a filtrate guide plate which can take the effect of collecting sewage. Compared with the prior PRB (Permeable Reactive Barrier) wall, the device has better water treatment effect, can continue in-situ remediation, has multiple administrable components, strong treating capability, and relatively low price and convenient replacement of the active reaction filler, and the size of the net cage can be correspondingly adjusted according to the size of a pollutant range.
Description
(1) technical field
The utility model relates to a kind of pollutant control device, especially a kind of permeable reactive wall that can administer pollute in the pollutent original position.
(2) background technology
Known permeable reactive wall is called for short PRB wall (Permeable Reaction Barrier), is made up of body of wall and the intravital active reaction filler of wall.The permeable reactive wall of using widely is the continuous reaction wall.The continuous reaction wall generally all is installed in contaminated phreatic downstream, one of its defective is: filler is applicable to that the scope of pollutent has very big limitation, directly influence the pollution treatment effect, and when filler reduced activity or contaminated thing obstruction, there is not easily changeable problem in the active reaction filler in the permeable reactive body of wall; Two of defective is: because the reaction wall is installed in the underground storage layer, when the scope of the pinniform pollutent of water body was bigger, the size of permeable reactive wall was also bigger, and cost is quite high.
(3) utility model content
The purpose of this utility model provides a kind of Net box pollutant control device, solve existing permeable reactive wall pollution treatment poor effect, cost height, the not easily changeable technical problem of filler.
For achieving the above object, the utility model adopts following technical scheme:
This Net box pollutant control device, comprise the intravital active reaction filler of body of wall and wall, it is characterized in that: its body of wall is the cage structure of layering combination shape, net cage with current wall forward be that boxboard by the rigid dense board making surrounds and forms, the net cage inherence is fixed with at least four layers of permeable separate mesh perpendicular to upstream face, the permeable separate mesh of each floor is separated at least three lattice chambers with net cage inside, the indoor mineral filler that is equipped with of feed-water end lattice chamber and water side lattice, the middle indoor active reaction filler that is equipped with of layout, net cage is extended with the filtrate flow deflector to the direction that meets water.
Can there be two lattice chambers, three lattice chambers in the layout chamber or more than the three lattice chambers in above-mentioned.
Above-mentioned rigid dense sheet material can be stainless steel plate, concrete slab, plastic plate or glass epoxy.
Above-mentioned permeable separate mesh can be plastic wire or chemical fiber web.
Above-mentioned mineral filler can be the mixing material of quartz sand, slag, wilkinite, above two or three material.
Above-mentioned active reaction filler can be one or more a mixing material of reductive agent, complexing agent or the sorbent material of zero-valent metal powder, gac, ion exchange resin, phosphoric acid salt, chitin, zeolite, Wingdale, organic clay, degradable volatile organic matter.
Above-mentioned filtrate flow deflector can be the hood-shaped or toroidal of canopy.
The utlity model has following beneficial effect: than known PRB wall water treatment better effects if, can continue in-situ treatment, but process element is many, processing power is strong, price is relatively cheap, the active reaction filler is changed convenient, can effectively remove the pollution substances such as heavy metal, inorganic anion, organism, nitrate, vitriol and phosphoric acid salt in the underground water.The utility model is provided with perpendicular to the groundwater flow direction, adopts the cage type structure, and permeable separate mesh makes whole net cage be divided into several compartments, makes each filler in the net cage conveniently replaced.Required medium and the layering of active reaction filler is filled in the ready-formed net cage in the net cage; mineral filler is loaded in the first lattice chamber of each net cage and last lattice chamber; mineral filler plays filtration, buffering and supports provide protection in treating processes; the active reaction filler is loaded in middle layout chamber, and the active reaction filler can play the effect that strengthens organic biodegradability, adsorb organic compound, removal ammonia nitrogen in sewage treatment process.The kind of active reaction filler and ratio can be set in advance according to the pollutent of locality, when polluted underground water passes through, pollutent transmits with pre-designed packing medium by nature waterpower and contacts, pollutents such as dissolved organism, metal, nucleic are degraded, adsorb, precipitate, react or remove, and underground water is purified.
In addition, also be connected with the filtrate flow deflector on the net cage, this filtrate flow deflector can play the effect of collecting sewage.Even there is the bigger situation of pollutent area, also can effectively collect sewage.Need not to improve cost, increase reaction wall size.
The utility model is a kind of groundwater pollution in-situ treatment method, is generally perpendicular to the groundwater flow direction, is installed in pollutent easily from the soil body of underground water the evolving path.
(4) description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is a plan structure synoptic diagram of the present utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the B-B cross-sectional view of Fig. 1.
Reference numeral: 1-feed-water end lattice chamber, 2-middle layout chamber, lattice chamber, 3-water side, 4-permeable separate mesh, 5-net cage, 6-filtrate flow deflector.
(5) embodiment
Embodiment is referring to shown in Fig. 1-3, and this Net box pollutant control device comprises body of wall and the intravital active reaction filler of wall, is provided with in the groundwater flow position that meets water, and opening direction is towards the direction that meets water.Its body of wall is the cage structure of layering combination shape, net cage 5 with current wall forward be that boxboard by the rigid dense board making surrounds and forms, above-mentioned rigid dense sheet material can be stainless steel plate, concrete slab, plastic plate or glass epoxy.The net cage inherence is fixed with at least four layers of permeable separate mesh 4 perpendicular to upstream face, and above-mentioned permeable separate mesh 4 can be plastic wire or chemical fiber web.Permeable separate mesh 4 is separated into five lattice chambers with net cage 5 inside.
In feed-water end lattice chamber 1 and the lattice chamber, water side 3 the natural mineral filler is housed, above-mentioned mineral filler can be the mixing material of quartz sand, slag, wilkinite, above two or three material.
In the middle layout chamber 2 the active reaction filler is housed, two lattice chambers, three lattice chambers can be arranged in above-mentioned middle layout chamber 2 or more than the three lattice chambers, the active reaction filler of each lattice chamber can be identical, also can be inequality.Above-mentioned active reaction filler can be one or more a mixing material of reductive agent, complexing agent or the sorbent material of zero-valent metal powder, gac, ion exchange resin, phosphoric acid salt, chitin, zeolite, Wingdale, organic clay, degradable volatile organic matter.Can contain microorganism in the active reaction filler, microorganism growth is bred needed nutrition and oxygen.Net cage 5 is extended with filtrate flow deflector 6 to the direction that meets water, and above-mentioned filtrate flow deflector 6 is the hood-shaped or toroidals of canopy.
The utility model is arranged on the cross section of contaminated underground water flowing-path, contacts with phreatic by the active reaction filler of filling in the body of wall net cage, and the pollution components in degraded and the retained water reaches the phreatic purpose of in-situ treatment.The active reaction filler of filling can be selected according to main pollution components in the contaminated underground water, can select reductive agent, zero-valent metal, network (chela) mixture, sorbent material, microorganism, the microorganism growth of degradable volatile organic matter to breed needed nutrition and oxygen or other reagent etc.
When contaminated groundwater flow under self hydraulic gradient effect during by the utility model, physics, chemical reaction take place in the active reaction filler in pollutent and the net cage (being generally iron, Wingdale, gac), utilize effects such as precipitation, degraded, absorption or ion-exchange to remove pollutent.Water sample after net cage is handled can detect sampling at any time and observe running condition, and the size of net cage can be according to the big or small corresponding adjustment of polluting the body scope.
Claims (5)
- [claim 1] a kind of Net box pollutant control device, comprise the intravital active reaction filler of body of wall and wall, it is characterized in that: its body of wall is the cage structure of layering combination shape, net cage (5) with current wall forward be that boxboard by the rigid dense board making surrounds and forms, the net cage inherence is fixed with at least four layers of permeable separate mesh (4) perpendicular to upstream face, the permeable separate mesh of each floor is separated at least three lattice chambers with net cage (5) inside, in feed-water end lattice chamber (1) and the lattice chamber, water side (3) mineral filler is housed, in the middle layout chamber (2) the active reaction filler is housed, net cage is extended with filtrate flow deflector (6) to the direction that meets water.
- [claim 2] Net box pollutant control device according to claim 1 is characterized in that: there are two lattice chambers, three lattice chambers in layout chamber (2) or more than the three lattice chambers in above-mentioned.
- [claim 3] Net box pollutant control device according to claim 2 is characterized in that: above-mentioned rigid dense sheet material is stainless steel plate, concrete slab, plastic plate or glass epoxy.
- [claim 4] Net box pollutant control device according to claim 2 is characterized in that: above-mentioned permeable separate mesh (4) is plastic wire or chemical fiber web.
- [claim 5] Net box pollutant control device according to claim 2 is characterized in that: above-mentioned filtrate flow deflector (6) is the hood-shaped or toroidal of canopy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203005651U CN201212019Y (en) | 2008-04-15 | 2008-04-15 | Cage type pollutant treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203005651U CN201212019Y (en) | 2008-04-15 | 2008-04-15 | Cage type pollutant treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212019Y true CN201212019Y (en) | 2009-03-25 |
Family
ID=40496184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203005651U Expired - Lifetime CN201212019Y (en) | 2008-04-15 | 2008-04-15 | Cage type pollutant treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212019Y (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616960A (en) * | 2012-04-12 | 2012-08-01 | 吉林建筑工程学院 | Box-type baffling permeable reactive barrier technology |
| CN104671438A (en) * | 2015-03-05 | 2015-06-03 | 江苏菲力环保工程有限公司 | Permeable reactive barrier device for underground water treatment |
| CN105366799A (en) * | 2015-12-11 | 2016-03-02 | 山东大学 | Net cage type biological filler sewage treatment device and working method and application thereof |
| CN105668680A (en) * | 2016-01-19 | 2016-06-15 | 中国科学院南京土壤研究所 | Method for in-situ remediation of mercury pollution in underground water with magnetite and bauxite slag |
| CN105776562A (en) * | 2016-05-18 | 2016-07-20 | 广州市新之地环保产业有限公司 | Packing modulation wetland treatment system |
| CN107758757A (en) * | 2016-08-19 | 2018-03-06 | 中国地质大学（北京） | For the preparation technology for the reaction grid for handling rainwash and phreatic water |
| CN107758758A (en) * | 2016-08-19 | 2018-03-06 | 中国地质大学（北京） | A kind of new permeable reactive barrier |
| CN109912045A (en) * | 2019-03-22 | 2019-06-21 | 河海大学 | A kind of permeable reactive barrier |
| CN110306639A (en) * | 2019-07-03 | 2019-10-08 | 昆明理工大学 | A kind of Tailings Dam heavy metal pollution and hazards control system |
| CN112591992A (en) * | 2020-12-03 | 2021-04-02 | 成都理工大学 | Filling medium for permeable reactive barrier and preparation method thereof |
| CN113582392A (en) * | 2021-08-03 | 2021-11-02 | 天津大学 | Permeable reactive barrier and method for repairing underground water pollution of landfill and polluted site |
| CN113735252A (en) * | 2021-10-11 | 2021-12-03 | 广州科宝水处理科技股份有限公司 | Biological filler, preparation method thereof and wastewater treatment method |
| CN114735850A (en) * | 2022-04-08 | 2022-07-12 | 浙江大学 | Folding multilayer permeable reaction wall for in-situ purification of underground water pollution plume of refuse landfill |
| CN115925142A (en) * | 2022-10-13 | 2023-04-07 | 同济大学 | Multi-medium non-biological reaction wall for repairing runoff between soil layers in mountainous and hilly areas and application method thereof |
-
2008
- 2008-04-15 CN CNU2008203005651U patent/CN201212019Y/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616960A (en) * | 2012-04-12 | 2012-08-01 | 吉林建筑工程学院 | Box-type baffling permeable reactive barrier technology |
| CN104671438A (en) * | 2015-03-05 | 2015-06-03 | 江苏菲力环保工程有限公司 | Permeable reactive barrier device for underground water treatment |
| CN104671438B (en) * | 2015-03-05 | 2017-02-08 | 江苏菲力环保工程有限公司 | Permeable reactive barrier device for underground water treatment |
| CN105366799A (en) * | 2015-12-11 | 2016-03-02 | 山东大学 | Net cage type biological filler sewage treatment device and working method and application thereof |
| CN105366799B (en) * | 2015-12-11 | 2018-06-12 | 山东大学 | A kind of cage type biological filler sewage-treatment plant and its method of work and application |
| CN105668680B (en) * | 2016-01-19 | 2018-05-04 | 中国科学院南京土壤研究所 | A kind of method using mercury pollution in magnetic iron ore and bauxite slag in-situ remediation of underground water |
| CN105668680A (en) * | 2016-01-19 | 2016-06-15 | 中国科学院南京土壤研究所 | Method for in-situ remediation of mercury pollution in underground water with magnetite and bauxite slag |
| CN105776562A (en) * | 2016-05-18 | 2016-07-20 | 广州市新之地环保产业有限公司 | Packing modulation wetland treatment system |
| CN107758758A (en) * | 2016-08-19 | 2018-03-06 | 中国地质大学（北京） | A kind of new permeable reactive barrier |
| CN107758757A (en) * | 2016-08-19 | 2018-03-06 | 中国地质大学（北京） | For the preparation technology for the reaction grid for handling rainwash and phreatic water |
| CN109912045A (en) * | 2019-03-22 | 2019-06-21 | 河海大学 | A kind of permeable reactive barrier |
| CN109912045B (en) * | 2019-03-22 | 2021-08-27 | 河海大学 | Permeable reactive barrier |
| CN110306639A (en) * | 2019-07-03 | 2019-10-08 | 昆明理工大学 | A kind of Tailings Dam heavy metal pollution and hazards control system |
| CN112591992A (en) * | 2020-12-03 | 2021-04-02 | 成都理工大学 | Filling medium for permeable reactive barrier and preparation method thereof |
| CN113582392A (en) * | 2021-08-03 | 2021-11-02 | 天津大学 | Permeable reactive barrier and method for repairing underground water pollution of landfill and polluted site |
| CN113735252A (en) * | 2021-10-11 | 2021-12-03 | 广州科宝水处理科技股份有限公司 | Biological filler, preparation method thereof and wastewater treatment method |
| CN113735252B (en) * | 2021-10-11 | 2024-08-27 | 广州科宝水处理科技股份有限公司 | Biological filler, preparation method thereof and wastewater treatment method |
| CN114735850A (en) * | 2022-04-08 | 2022-07-12 | 浙江大学 | Folding multilayer permeable reaction wall for in-situ purification of underground water pollution plume of refuse landfill |
| CN115925142A (en) * | 2022-10-13 | 2023-04-07 | 同济大学 | Multi-medium non-biological reaction wall for repairing runoff between soil layers in mountainous and hilly areas and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Green Home Environmental Protection Engineering Technology Research Institute Assignor: Cui Wei Contract fulfillment period: 2009.3.25 to 2018.4.14 Contract record no.: 2009990000643 Denomination of utility model: Cage type pollutant treatment device Granted publication date: 20090325 License type: Exclusive license Record date: 20090611 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.25 TO 2018.4.14; CHANGE OF CONTRACT Name of requester: BEIJING LVSE JIAYUAN ENVIRONMENT PROTECTIVE ENGINE Effective date: 20090611 |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING GREEN MANOR ENVIRONMENT TECHNOLOGY INSTITU Effective date: 20120518 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120518 Address after: 100083 Beijing East Wang Zhuang, building 25, 3, gate 502, Haidian District Co-patentee after: Beijing Green Home Environmental Protection Engineering Technology Research Institute Patentee after: Cui Wei Address before: 100083 Beijing East Wang Zhuang, building 25, 3, gate 502, Haidian District Patentee before: Cui Wei |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090325 |
|
| CX01 | Expiry of patent term |