CN221027804U - Modularized high ammonia nitrogen wastewater treatment equipment - Google Patents
Modularized high ammonia nitrogen wastewater treatment equipment Download PDFInfo
- Publication number
- CN221027804U CN221027804U CN202322770364.5U CN202322770364U CN221027804U CN 221027804 U CN221027804 U CN 221027804U CN 202322770364 U CN202322770364 U CN 202322770364U CN 221027804 U CN221027804 U CN 221027804U
- Authority
- CN
- China
- Prior art keywords
- tank
- groove
- blowing
- ammonia nitrogen
- wastewater treatment
- 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.)
- Active
Links
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 25
- 238000004062 sedimentation Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 13
- 238000005273 aeration Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000012670 alkaline solution Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 150000001408 amides Chemical class 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 13
- 239000012535 impurity Substances 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses modularized high ammonia nitrogen wastewater treatment equipment, which comprises a mounting substrate, wherein a first arrangement through groove is formed in one side of the top end of the mounting substrate, a second arrangement through groove is formed in the center of the top end of the mounting substrate, a third arrangement through groove is formed in the other side of the top end of the mounting substrate, a primary sedimentation tank is connected in the first arrangement through groove in a penetrating manner, and a blowing-off tower tank is connected in the second arrangement through groove in a penetrating manner. According to the utility model, after the reaction inside the blowing-off tower tank is finished, the air outlet guide pipe and the air inlet guide pipe are separated from the blowing-off tower tank, the positioning transverse plate can be taken down, the blowing-off tower tank is taken out, the residual treatment water inside the blowing-off tower tank is convenient to clean, and after the treatment inside the absorption tank is finished, the air outlet guide pipe and the air inlet guide pipe can slide out of the absorption tank, so that the solidified and absorbed amide can be conveniently collected and treated.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to modularized high ammonia nitrogen wastewater treatment equipment.
Background
The ammonia nitrogen wastewater mainly comes from chemical fertilizers, coking, petrochemical industry, pharmacy, food, landfill sites and the like, and a large amount of ammonia nitrogen wastewater is discharged into water body, so that the water body is eutrophicated, black and odorous, the difficulty and cost of water supply treatment are increased, toxic and harmful effects are even generated on people and organisms, and various treatment processes such as biological methods and physical and chemical methods are adopted for the treatment process of the ammonia nitrogen wastewater.
The patent number is: CN207451691U discloses an ammonia nitrogen wastewater treatment device, through the effect of built-in electrolytic device, can convert ammonia nitrogen into nitrogen, oxygen, hydrogen gas and carbon dioxide and water and get rid of the ammonia nitrogen in the waste water, realize emission up to standard, secondly through the cooperation of built-in multiple water conservancy diversion pipeline, can carry out convenient mixing with waste water and treatment fluid to very big improvement waste water treatment's efficiency, do benefit to the popularization and application of trade, and do not set up each waste water treatment device of resolvable in the aforesaid patent, it is comparatively inconvenient to the maintenance and the clearance of part treatment structure.
Disclosure of utility model
The utility model aims to provide modularized high ammonia nitrogen wastewater treatment equipment so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a modularization high ammonia nitrogen wastewater treatment equipment, includes the mounting base plate, first settlement logical groove has been seted up to one side on mounting base plate top, the center department on mounting base plate top has been seted up the second and has been settled logical groove, the opposite side on mounting base plate top has been seted up the third and has been settled logical groove, the inside in first settlement logical groove is connected with primary sedimentation tank, the inside in second settlement logical groove is connected with and blows down the tower jar, the inside in third settlement logical groove is connected with the absorption tank in a penetrating way, the reaction logical groove has been seted up on the top of absorption tank, the inside in reaction logical groove is filled with biological filter material, the inside in primary sedimentation tank is filled with alkaline solution, the solenoid valve is installed at the top of blowing down tower jar one side, the output flange joint of solenoid valve has the pipe that draws water, the pipe extends to the inside of settling logical groove, the top flange joint of blowing down the tower jar has the pipe of giving vent to anger, the one end of pipe and the bottom flange joint of absorption tank one side of giving vent to anger, the purpose that sets up like this: the method is characterized in that waste water to be treated is placed in a sedimentation through tank, the pH value of the waste water can be improved due to alkaline solution in the sedimentation through tank, phosphorus in the waste water is removed, after impurities in the waste water are precipitated, waste water in the sedimentation through tank is pumped into a blowing-off tower tank through an electromagnetic valve, a pumping guide pipe can be taken out after the waste water is pumped out, and a primary sedimentation tank is taken out of an installation base plate, so that impurity sludge in the sedimentation through tank is conveniently cleaned, the inside of the blowing-off tower tank is ventilated through a double-head fan, ammonia can be separated from waste water passing through filling in the blowing-off tower tank, the ammonia can be directly led into an absorption tank through an air outlet guide pipe, and can be absorbed and solidified through biological filter material due to the fact that the inside of the reaction through tank is filled with biological filter material, and the top end of the reaction through the double-head fan and an aeration nozzle is subjected to air injection treatment, so that the biological reaction efficiency can be improved.
Preferably, one side of the top end of the installation base plate is fixedly welded with an installation connecting plate, and the top end of the installation connecting plate is fixedly provided with a double-head fan.
Preferably, an output end of the double-head fan is in threaded connection with an air inlet conduit, and the air inlet conduit extends to the inside of the blowing-off tower tank.
Preferably, one side of the mounting substrate is in threaded connection with a positioning transverse plate, and a positioning connecting plate is fixedly welded at the center of one side of the positioning transverse plate.
Preferably, one end of the positioning connecting plate is in contact with the blowing tower tank, and one side of the mounting connecting plate is fixedly welded with a supporting guide plate.
Preferably, an aeration spray head is welded at the top end of the supporting guide plate, and one end of the aeration spray head is in threaded connection with the other output end of the double-head fan.
The utility model has the technical effects and advantages that:
(1) This device is when blowing tower jar internal reaction and accomplish the back, will give vent to anger pipe and air inlet pipe and blow tower jar separation, removable location diaphragm, take out and blow tower jar, be convenient for blow tower jar inside residual treatment water and clear up, after the completion is handled to the absorption cell internal, can roll off the absorption cell and be convenient for collect and handle solidification absorbing amide, primary sedimentation tank in this device, blow tower jar and absorption cell have the modularization framework of independent split, can be convenient for separate and maintain and clear up wherein the part split.
(2) The device is used for placing the wastewater to be treated into the sedimentation through tank, the pH value of the wastewater can be improved due to alkaline solution in the sedimentation through tank, phosphorus in the wastewater is removed, after impurities in the wastewater are precipitated, the wastewater in the sedimentation through tank is pumped into the blowing-off tower tank through the electromagnetic valve, the pumping guide pipe can be taken out after the wastewater is pumped out, the primary sedimentation tank is taken out from the mounting substrate, so that impurity sludge in the sedimentation through tank is conveniently cleaned, the inside of the blowing-off tower tank is ventilated through the double-head fan, ammonia gas can be separated from the wastewater passing through the filler in the blowing-off tower tank, the ammonia gas can be directly led into the absorption tank through the air outlet guide pipe, the ammonia gas passing through the biological filter material can be absorbed and solidified through the inside of the reaction through tank, the top of the reaction through tank is subjected to air injection treatment through the double-head fan and the aeration nozzle, and the biological reaction efficiency can be improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view showing a connection structure between an absorption cell and a mounting connection plate according to the present utility model;
fig. 3 is a schematic diagram of the connection structure between the pumping duct and the air outlet duct according to the present utility model.
In the figure: 1. a mounting substrate; 2. a first mounting through groove; 3. a primary sedimentation tank; 4. a second mounting through groove; 5. a third mounting through groove; 6. a sedimentation through groove; 7. blowing off a tower tank; 8. an electromagnetic valve; 9. a water pumping conduit; 10. an absorption cell; 11. installing a connecting plate; 12. a double-head fan; 13. a reaction through groove; 14. an aeration spray head; 15. a support guide plate; 16. an air outlet duct; 17. positioning a transverse plate; 18. and positioning the connecting plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides modularized high ammonia nitrogen wastewater treatment equipment shown in fig. 1-3, which comprises a mounting baseplate 1, wherein one side of the top end of the mounting baseplate 1 is provided with a first positioning through groove 2, the center of the top end of the mounting baseplate 1 is provided with a second positioning through groove 4, the other side of the top end of the mounting baseplate 1 is provided with a third positioning through groove 5, the inside of the first positioning through groove 2 is connected with a primary sedimentation tank 3 in a penetrating way, the inside of the second positioning through groove 4 is connected with a blowing-off tower tank 7 in a penetrating way, the inside of the third positioning through groove 5 is connected with an absorption tank 10 in a penetrating way, the top end of the absorption tank 10 is provided with a reaction through groove 13, the inside of the reaction through groove 13 is filled with biological filter materials, the inside of the primary sedimentation tank 3 is filled with alkaline solution, the top of one side of the blowing-off tower tank 7 is provided with an electromagnetic valve 8, an output end flange of the electromagnetic valve 8 is connected with a pumping conduit 9, the pumping conduit 9 extends to the inside of the sedimentation through tank 6, a top end flange of the blowing-off tower tank 7 is connected with an air outlet conduit 16, and one end of the air outlet conduit 16 is connected with a bottom flange of one side of the absorption tank 10;
1-2, a mounting connecting plate 11 is fixedly welded on one side of the top end of a mounting base plate 1, a double-head fan 12 is fixedly mounted on the top end of the mounting connecting plate 11, an output end of the double-head fan 12 is in threaded connection with an air inlet conduit, and the air inlet conduit extends to the inside of a blowing-off tower tank 7.
As the modularized high ammonia nitrogen wastewater treatment equipment shown in figures 1-3, one side of the installation base plate 1 is in threaded connection with a positioning transverse plate 17, a positioning connecting plate 18 is fixedly welded at the center of one side of the positioning transverse plate 17, one end of the positioning connecting plate 18 is in contact with the blowing-down tower tank 7, a supporting guide plate 15 is fixedly welded at one side of the installation connecting plate 11, an aeration spray head 14 is welded at the top end of the supporting guide plate 15, one end of the aeration spray head 14 is in threaded connection with the other output end of the double-head fan 12, after the internal reaction of the blowing-down tower tank 7 is finished, an air outlet guide pipe 16 and an air inlet guide pipe are separated from the blowing-down tower tank 7, the positioning transverse plate 17 can be taken out, the blowing-down tower tank 7 is taken out, residual treatment water in the blowing-down tower tank 7 is convenient to clean, after the internal treatment of the absorption tank 10 is finished, the ammoniated substances absorbed by solidification can be conveniently collected and treated, and the primary sedimentation tank 3, the blowing-down tower tank 7 and the absorption tank 10 in the device have modularized structures which are independently split, and the parts of the primary sedimentation tank are conveniently split and maintained and cleaned.
The working principle of the utility model is as follows: this device can settle in suitable position, will use electrical apparatus and external power supply electric connection later, will wait to handle waste water and put into subsidence tank 6, because the alkaline solution in subsidence tank 6 can improve the pH value of waste water, and dispel the phosphorus in the waste water, after impurity precipitation, accessible solenoid valve 8 will be located in subsidence tank 6 waste water suction blow-off tower jar 7, can take out water pumping pipe 9 after finishing waste water pumping, and take out primary sedimentation tank 3 from mounting base plate 1, thereby be convenient for clear up impurity mud in the subsidence tank 6, ventilate through double-end fan 12 to blow-off tower jar 7 inside, thereby can accelerate the waste water separation that passes through blow-off tower jar 7 inside packing and go out ammonia, ammonia accessible air outlet pipe 16 direct import absorption tank 10, because the inside of reaction tank 13 is filled with biological filter material, can carry out the absorption solidification to the ammonia that passes through biological filter material, carry out jet-off tank 13 top through double-end fan 12 and aeration shower nozzle 14, can improve biological reaction efficiency, after blowing-off tower jar 7 inside reaction is accomplished, with giving vent to anger pipe 16 and 7 and take out the bottom plate 7 and 7, can take out the separation tank 7 and separate device is blown-off in the inside and take out the top of the absorption tank 10, the inside can take out the device is convenient for the device is blown-off and take out the inside the absorption tank 10 alone in the absorption tank 7, the separation tank is convenient for the maintenance of the device is blown-off in the inside and is taken out to take out the inside portion of the absorption tank 10.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. Modularized high ammonia nitrogen wastewater treatment equipment, including mounting base plate (1), its characterized in that: the utility model discloses a filter device for a sewage treatment plant, including installation base plate (1), first settling through groove (2) has been seted up to one side on installation base plate (1) top, second settling through groove (4) has been seted up to the center department on installation base plate (1) top, third settling through groove (5) has been seted up to the opposite side on installation base plate (1) top, the inside interlude of first settling through groove (2) is connected with primary sedimentation tank (3), the inside interlude of second settling through groove (4) is connected with and blows down tower jar (7), the inside interlude of third settling through groove (5) is connected with absorption tank (10), reaction through groove (13) has been seted up on the top of absorption tank (10), the inside packing of reaction through groove (13) has biological filter material, the inside packing of primary sedimentation tank (3) has alkaline solution, the solenoid valve (8) are installed at the top of blowing down tower jar (7) one side, the output flange connection of solenoid valve (8) has water pumping pipe (9), water pumping pipe (9) extend to the inside of sedimentation through groove (6), the inside of the flange (16) of giving vent to anger of the flange (16) is connected with one side of blowing down flange (16).
2. The modular high ammonia nitrogen wastewater treatment device of claim 1, wherein: one side of the top end of the installation base plate (1) is fixedly welded with an installation connecting plate (11), and the top end of the installation connecting plate (11) is fixedly provided with a double-head fan (12).
3. The modular high ammonia nitrogen wastewater treatment apparatus of claim 2, wherein: an output end of the double-head fan (12) is connected with an air inlet guide pipe in a threaded mode, and the air inlet guide pipe extends to the inside of the blowing-off tower tank (7).
4. The modular high ammonia nitrogen wastewater treatment apparatus of claim 2, wherein: one side of the mounting substrate (1) is in threaded connection with a positioning transverse plate (17), and a positioning connecting plate (18) is fixedly welded at the center of one side of the positioning transverse plate (17).
5. The modular high ammonia nitrogen wastewater treatment device of claim 4, wherein: one end of the positioning connecting plate (18) is in contact with the blowing-off tower tank (7), and one side of the mounting connecting plate (11) is fixedly welded with a supporting guide plate (15).
6. The modular high ammonia nitrogen wastewater treatment device of claim 5, wherein: an aeration spray head (14) is welded at the top end of the supporting guide plate (15), and one end of the aeration spray head (14) is in threaded connection with the other output end of the double-head fan (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322770364.5U CN221027804U (en) | 2023-10-16 | 2023-10-16 | Modularized high ammonia nitrogen wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322770364.5U CN221027804U (en) | 2023-10-16 | 2023-10-16 | Modularized high ammonia nitrogen wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221027804U true CN221027804U (en) | 2024-05-28 |
Family
ID=91172842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322770364.5U Active CN221027804U (en) | 2023-10-16 | 2023-10-16 | Modularized high ammonia nitrogen wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221027804U (en) |
-
2023
- 2023-10-16 CN CN202322770364.5U patent/CN221027804U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2665110Y (en) | Urban domestic refuse sanitation burying landfill leachate ammonia nitrogen removing apparatus | |
| WO2016029877A1 (en) | Sewage treatment apparatus | |
| CN221027804U (en) | Modularized high ammonia nitrogen wastewater treatment equipment | |
| CN207468277U (en) | Industrial organic exhaust gas comprehensive waste water treating apparatus | |
| CN205635284U (en) | Sewage treatment device is bred in integration | |
| CN206395867U (en) | A kind of purifying device using photo-catalysis | |
| CN108395053A (en) | A kind of industrial wastewater landscape type purification system | |
| CN217287903U (en) | High-efficient biological treatment device of waste gas | |
| CN213060571U (en) | Full-automatic integrated sewage treatment equipment adopting double-power A1/O + MBR method | |
| CN212425785U (en) | Sewage treatment equipment with automatic sewage discharging mechanism | |
| CN101462795A (en) | Low energy consumption and high efficiency complete set apparatuses for domestic sewage treatment and odor purification | |
| CN205099556U (en) | CSBR sewage treatment pond | |
| CN210795942U (en) | Microbial degradation device for sewage treatment | |
| CN210481143U (en) | Sewage treatment system based on MBR membrane process | |
| CN208933196U (en) | A kind of device of the integrated rural sewage treatment using green energy resource | |
| CN213085768U (en) | Glass steel medical wastewater treatment complete equipment | |
| CN201454335U (en) | Wet air purification system | |
| CN201381247Y (en) | Aerobic reactor | |
| CN206570161U (en) | A kind of graphite fluorine-containing waste water processing apparatus | |
| CN214654330U (en) | High-efficient short distance microorganism sewage treatment plant | |
| CN205368050U (en) | Bury formula low energy consumption sewage treatment and reuse of reclaimed water system | |
| CN221673881U (en) | Waste gas spray tower equipment for waste gas treatment | |
| CN217838647U (en) | Ethanol wastewater treatment device | |
| CN113603310B (en) | Complete equipment and method for treating and repairing water pollution | |
| CN219823774U (en) | Wastewater treatment ware with gaseous purification performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |