CN114409182A - Wetland water quality purification ecological restoration system - Google Patents
Wetland water quality purification ecological restoration system Download PDFInfo
- Publication number
- CN114409182A CN114409182A CN202111626374.0A CN202111626374A CN114409182A CN 114409182 A CN114409182 A CN 114409182A CN 202111626374 A CN202111626374 A CN 202111626374A CN 114409182 A CN114409182 A CN 114409182A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- plate
- frame
- repairing
- water quality
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000000746 purification Methods 0.000 title claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000002893 slag Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Inorganic Chemistry (AREA)
- Hydroponics (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to the technical field of water purification, and particularly discloses a wetland water purification ecological restoration system which comprises a positioning pile inserted into the water bottom, a positioning disc and a plurality of restoration components, wherein the positioning disc is fixedly connected with the positioning pile, each restoration component comprises a ball body, a connecting rod, a side plate, a sliding plate, a fixing part, a top floating plate, a restoration frame, an embedding frame and an absorption part, the ball body is slidably connected with the positioning disc, one end of the connecting rod is rotatably connected with the ball body, the other end of the connecting rod is fixedly connected with the side plate, the sliding plate is slidably connected with the side plate, one end of the fixing part is fixedly connected with the sliding plate, the other end of the fixing part is fixedly connected with the top floating plate, the restoration frame is arranged above the top floating plate, aquatic plants are planted in the restoration frame, the embedding frame is fixedly connected with the top floating plate, and the absorption part is filled in the embedding frame. Through the arrangement of the structure, the flexible rope can be directly replaced, so that the phenomenon that the flexible rope is wound around each other can be avoided, and a plurality of repairing assemblies can be prevented from colliding with each other.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to a wetland water purification ecological restoration system.
Background
The purification of wetland lakes and garden ponds mainly comprises natural sedimentation and natural biochemical degradation, and has the defect that in densely populated areas such as lakes, ponds and ponds in cities, water generally has the tendency of eutrophication and water quality deterioration due to the large amount of organic substances poured into the water.
At present through inserting the spud to the bottom, then utilize the mode of every flexible rope connection restoration subassembly to this realization is to the purification of quality of water, but this mode easily leads to flexible rope intertwine, makes a plurality of restoration subassemblies collide each other.
Disclosure of Invention
The invention aims to provide a wetland water quality purification ecological restoration system, and aims to solve the technical problem that in the prior art, water quality is purified in a mode that a positioning pile is inserted into the water bottom and then each flexible rope is connected with one restoration component, but the flexible ropes are easily wound with each other in the mode, so that a plurality of restoration components collide with each other.
In order to achieve the purpose, the wetland water quality purification ecological restoration system comprises a positioning pile inserted into the water bottom, a positioning disc and a plurality of restoration components, wherein the positioning disc is fixedly connected with the positioning pile and is positioned above the positioning pile, the plurality of restoration components are circumferentially arranged on the outer peripheral side of the positioning disc in a surrounding manner, and the outer edge of the positioning disc is provided with an annular groove;
each repairing assembly comprises a ball body, a connecting rod, a side plate, a sliding plate, a fixing piece, a top floating plate, a repairing frame, an arranging frame and an absorbing piece, wherein the ball body is connected with the positioning disc in a sliding mode and is located in the annular groove, one end of the connecting rod is connected with the ball body in a rotating mode, the other end of the connecting rod is fixedly connected with the side plate, a groove body is formed in one side of the side plate, the sliding plate is connected with the side plate in a sliding mode and is located inside the groove body, one end of the fixing piece is fixedly connected with the sliding plate, the other end of the fixing piece is fixedly connected with the top floating plate, the repairing frame is arranged above the top floating plate, aquatic plants are planted in the repairing frame, the arranging frame is fixedly connected with the top floating plate and is located below the top floating plate, and the absorbing piece is filled in the arranging frame.
Under the action of the top floating plate, the repairing frame can float on the water surface, the water body is purified by the aquatic plants in the repairing frame, meanwhile, the absorbing piece in the embedded frame is steel slag, the porous structure of the steel slag absorbs small-particle pollutants in sewage, the water quality purifying effect is achieved, when the water surface generates ripples, the side plate can be pushed under the pushing effect of water, the connecting rod is driven, the ball body is driven to slide in the annular groove, meanwhile, the top floating plate, the embedded frame and the repairing frame rotate along with the ball body, the repairing assembly can purify the water at one position, the water quality purifying effect is improved, in addition, when the water surface generates ripples, the sliding plate can move up and down in the groove body, and then the fixing piece drives the top floating plate to shake up and down, through the arrangement of the structure, the flexible ropes can be prevented from being wound and a plurality of repairing assemblies collide with each other.
The wetland water quality purification ecological restoration system further comprises a limiting ring, wherein the limiting ring is fixedly connected with the positioning disc and is positioned in the annular groove.
The limiting ring can limit the sliding position of the ball body, so that the ball body can only slide in the annular groove.
The repairing assembly further comprises two limiting plates, and the two limiting plates are fixedly connected with the side plates and located at the upper end and the lower end of the groove body.
Through with two the limiting plate sets up two upper and lower terminal surfaces of cell body to this can be right the slide is in the sliding position in the cell body is spacing, avoids the slide slips from the cell body.
The repairing assembly further comprises an inner floating block, wherein the inner floating block is fixedly connected with the sliding plate and is located below the sliding plate.
The inner floating block can play a role in supporting the sliding plate in a buoyancy mode, so that the sliding plate can stably float on the water surface.
The repairing assembly further comprises a floating block, wherein the floating block is fixedly connected with the fixing piece and is positioned on the lower end face of the fixing piece.
The floating block is arranged, so that the fixing piece can be supported by buoyancy, and the floating block can stably float on the water surface.
The repairing assembly further comprises a woven net, the woven net is arranged inside the placing frame, and the woven net wraps the absorbing piece.
The absorbing pieces can be wrapped by the woven net, and the absorbing pieces are prevented from scattering in the placing frame.
According to the wetland water quality purification ecological restoration system, under the action of the top floating plate, the restoration frame can float on the water surface, the water body is purified by the aquatic plants in the restoration frame, meanwhile, the absorption piece in the built-in frame is steel slag, the porous structure of the steel slag absorbs small-particle pollutants in the sewage to purify the water quality, when the water surface is corrugated, the side plate can be pushed under the pushing action of water to drive the connecting rod to further drive the ball body to slide in the annular groove, and simultaneously the top floating plate, the built-in frame and the restoration frame all rotate along with the steel slag, so that the restoration assembly can purify the water quality at one position and improve the purification effect of the water quality, and in addition, when the water surface is corrugated, the sliding plate can move up and down in the groove body, then the fixing piece drives the top floating plate to swing up and down, and the flexible rope can be directly replaced through the structure, so that the phenomenon that the flexible rope is wound on each other is avoided, and the repairing assemblies can be prevented from colliding with each other.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the wetland water quality purification ecological restoration system of the invention.
Fig. 2 is a side view of the wetland water quality purification ecological restoration system of the invention.
Fig. 3 is a cross-sectional view of the a-a line structure of fig. 2 of the present invention.
Fig. 4 is an enlarged view of a portion of the structure of fig. 3B according to the present invention.
Fig. 5 is an enlarged view of a portion of the structure of fig. 1 at C according to the present invention.
1-positioning pile, 2-positioning plate, 3-repairing component, 4-annular groove, 5-sphere, 6-connecting rod, 7-side plate, 8-sliding plate, 9-fixing piece, 10-top floating plate, 11-repairing frame, 12-placing frame, 13-absorbing piece, 14-groove body, 15-limiting ring, 16-limiting plate, 17-inner floating block, 18-floating block, 19-woven net, 20-planting frame, 21-communicating piece, 22-reinforcing rib and 23-bottom floating plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the invention provides a wetland water purification ecological restoration system, which comprises a positioning pile 1 inserted into the water bottom, a positioning disc 2 and a plurality of restoration components 3, wherein the positioning disc 2 is fixedly connected with the positioning pile 1 and is positioned above the positioning pile 1, the plurality of restoration components 3 are circumferentially arranged on the outer peripheral side of the positioning disc 2, and the outer edge of the positioning disc 2 is provided with an annular groove 4;
each repairing component 3 comprises a ball body 5, a connecting rod 6, a side plate 7, a sliding plate 8, a fixing part 9, a top floating plate 10, a repairing frame 11, a placing frame 12 and an absorbing part 13, wherein the ball body 5 is slidably connected with the positioning plate 2 and is positioned in the annular groove 4, one end of the connecting rod 6 is rotatably connected with the ball body 5, the other end of the connecting rod 6 is fixedly connected with the side plate 7, one side of the side plate 7 is provided with a groove body 14, the sliding plate 8 is slidably connected with the side plate 7 and is positioned in the groove body 14, one end of the fixing part 9 is fixedly connected with the sliding plate 8, the other end of the fixing part 9 is fixedly connected with the top floating plate 10, the repairing frame 11 is arranged above the top floating plate 10, aquatic plants are planted in the repairing frame 11, the placing frame 12 is fixedly connected with the top floating plate 10 and is positioned below the top floating plate 10, the insertion frame 12 is filled with the absorbent member 13.
In this embodiment, under the action of the top floating plate 10, the repairing frame 11 can float on the water surface, and the water body is purified by the aquatic plants in the repairing frame 11, and at the same time, the absorbing member 13 in the placing frame 12 is also passed through, the absorbing member 13 is steel slag, the porous structure of the steel slag absorbs the small particle pollutants in the sewage to purify the water quality, when the water surface generates ripples, the side plate 7 can be pushed under the pushing action of water to drive the connecting rod 6, further drive the ball 5 to slide in the annular groove 4, and simultaneously the top floating plate 10, the placing frame 12 and the repairing frame 11 all rotate along with the water surface, so that the repairing assembly 3 not only purifies the water quality at one position, and improves the purifying effect of the water quality, but also can make the sliding plate 8 move up and down in the groove 14 when the water surface generates ripples, then the fixing piece 9 drives the top floating plate 10 to swing up and down, and the flexible rope can be directly replaced by the structure, so that the phenomenon that the flexible rope is wound on each other is avoided, and the repairing assemblies 3 can be prevented from colliding with each other.
Furthermore, the wetland water quality purification ecological restoration system also comprises a limiting ring 15, wherein the limiting ring 15 is fixedly connected with the positioning disc 2 and is positioned inside the annular groove 4.
In the present embodiment, the stopper ring 15 can limit the sliding position of the ball 5 so that the ball 5 can only slide in the annular groove 4.
Further, the repair assembly 3 further comprises two limiting plates 16, and the two limiting plates 16 are fixedly connected with the side plates 7 and located at the upper end and the lower end of the groove body 14. The repairing assembly 3 further comprises an inner floating block 17, and the inner floating block 17 is fixedly connected with the sliding plate 8 and is positioned below the sliding plate 8. The repair assembly 3 further comprises a floating block 18, wherein the floating block 18 is fixedly connected with the fixing piece 9 and is positioned on the lower end face of the fixing piece 9. The repair assembly 3 further comprises a mesh grid 19, the mesh grid 19 is disposed inside the placement frame 12, and the mesh grid 19 covers the absorbent member 13. The repairing assembly 3 further comprises a bottom floating plate 23, and the bottom floating plate 23 is fixedly connected with the imbedding frame 12 and is positioned at the bottom of the imbedding frame 12.
In this embodiment, the two limiting plates 16 are disposed on the upper and lower end surfaces of the groove 14, so that the sliding position of the sliding plate 8 in the groove 14 can be limited, and the sliding plate 8 is prevented from sliding off the groove 14. The inner floating block 17 can play a role in supporting the sliding plate 8 in a buoyancy manner, so that the sliding plate 8 can stably float on the water surface. The floating block 18 can support the fixing member 9 by buoyancy, so that the floating block 18 can stably float on the water surface. The woven mesh 19 can cover the absorbent article 13, and prevent the absorbent article 13 from falling out of the insertion frame 12. The bottom floating plate 23 can improve the overall buoyancy of the wetland water quality purification ecological restoration system.
Further, the repairing frame 11 comprises a planting frame 20 and a communicating piece 21, the planting frame 20 is fixedly connected with the top floating plate 10 and is located above the top floating plate 10, one end of the communicating piece 21 is communicated with the planting frame 20, and the other end of the communicating piece 21 penetrates through the top floating plate 10 and is communicated with the planting frame 20. Repair frame 11 still includes many strengthening ribs 22, many strengthening ribs 22 all with connecting piece 21 fixed connection to evenly distributed in the inside of connecting piece 21.
In the present embodiment, the aquatic plants are planted in the planting frame 20, and the roots and stems of the aquatic plants extend to the communicating member 21, thereby purifying water quality and restoring ecology. The arrangement of the plurality of reinforcing ribs 22 can support the growth of the aquatic plants and increase the structural strength of the communicating member 21.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A wetland water quality purification ecological restoration system, which is characterized in that,
the underwater water-retaining device comprises a positioning pile inserted into the water bottom, a positioning disc and a plurality of repairing components, wherein the positioning disc is fixedly connected with the positioning pile and is positioned above the positioning pile, the plurality of repairing components are circumferentially arranged on the outer peripheral side of the positioning disc in a surrounding manner, and an annular groove is formed in the outer edge of the positioning disc;
each repairing assembly comprises a ball body, a connecting rod, a side plate, a sliding plate, a fixing piece, a top floating plate, a repairing frame, an arranging frame and an absorbing piece, wherein the ball body is connected with the positioning disc in a sliding mode and is located in the annular groove, one end of the connecting rod is connected with the ball body in a rotating mode, the other end of the connecting rod is fixedly connected with the side plate, a groove body is formed in one side of the side plate, the sliding plate is connected with the side plate in a sliding mode and is located inside the groove body, one end of the fixing piece is fixedly connected with the sliding plate, the other end of the fixing piece is fixedly connected with the top floating plate, the repairing frame is arranged above the top floating plate, aquatic plants are planted in the repairing frame, the arranging frame is fixedly connected with the top floating plate and is located below the top floating plate, and the absorbing piece is filled in the arranging frame.
2. The wetland water quality purification ecological restoration system of claim 1,
the wetland water quality purification ecological restoration system further comprises a limiting ring, wherein the limiting ring is fixedly connected with the positioning disc and is positioned in the annular groove.
3. The wetland water quality purification ecological restoration system of claim 1,
the repairing assembly further comprises two limiting plates, and the two limiting plates are fixedly connected with the side plates and located at the upper end and the lower end of the groove body.
4. The wetland water quality purification ecological restoration system of claim 1,
the repairing assembly further comprises an inner floating block, and the inner floating block is fixedly connected with the sliding plate and located below the sliding plate.
5. The wetland water quality purification ecological restoration system of claim 1,
the repairing assembly further comprises a floating block, and the floating block is fixedly connected with the fixing piece and is positioned on the lower end face of the fixing piece.
6. The wetland water quality purification ecological restoration system of claim 1,
the repair assembly further comprises a mesh grid, the mesh grid is arranged inside the placing frame, and the absorbing piece is wrapped by the mesh grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626374.0A CN114409182A (en) | 2021-12-28 | 2021-12-28 | Wetland water quality purification ecological restoration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626374.0A CN114409182A (en) | 2021-12-28 | 2021-12-28 | Wetland water quality purification ecological restoration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114409182A true CN114409182A (en) | 2022-04-29 |
Family
ID=81268912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111626374.0A Pending CN114409182A (en) | 2021-12-28 | 2021-12-28 | Wetland water quality purification ecological restoration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114409182A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100787149B1 (en) * | 2006-12-08 | 2007-12-21 | 주식회사 아썸 | Construction of artificial wetland for wastewater treatment |
| CN211367146U (en) * | 2019-11-28 | 2020-08-28 | 生态环境部华南环境科学研究所 | Ecological floating bed |
| CN113277622A (en) * | 2021-05-26 | 2021-08-20 | 天下光捕（武汉）生态科技有限公司 | Rotary biological target diversity three-dimensional float wetland |
| CN214142009U (en) * | 2020-10-15 | 2021-09-07 | 淮北智行信息科技有限公司 | Ecological remediation floats area for water purification |
| CN214880561U (en) * | 2021-05-19 | 2021-11-26 | 江苏和合水环境有限公司 | Microbial preparation throwing equipment for auxiliary restoration of river and lake wetlands |
-
2021
- 2021-12-28 CN CN202111626374.0A patent/CN114409182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100787149B1 (en) * | 2006-12-08 | 2007-12-21 | 주식회사 아썸 | Construction of artificial wetland for wastewater treatment |
| CN211367146U (en) * | 2019-11-28 | 2020-08-28 | 生态环境部华南环境科学研究所 | Ecological floating bed |
| CN214142009U (en) * | 2020-10-15 | 2021-09-07 | 淮北智行信息科技有限公司 | Ecological remediation floats area for water purification |
| CN214880561U (en) * | 2021-05-19 | 2021-11-26 | 江苏和合水环境有限公司 | Microbial preparation throwing equipment for auxiliary restoration of river and lake wetlands |
| CN113277622A (en) * | 2021-05-26 | 2021-08-20 | 天下光捕（武汉）生态科技有限公司 | Rotary biological target diversity three-dimensional float wetland |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103864220B (en) | Multi-step water body ecological purification system and construction method thereof | |
| CN105271525B (en) | Multistage filtering biological floating island | |
| CN201777934U (en) | Continuous adjustable submerged plant planting net bed | |
| CN101003408A (en) | Rise and fall artificial floating floor of plants for biological treating sewage, preparation method and method of application | |
| CN103058383A (en) | Multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes | |
| CN102249400B (en) | Device for ecologically restoring natural water body in situ | |
| CN2767433Y (en) | Ecological concrete purifying trough at running water shore | |
| CN201031181Y (en) | Biological sewage treatment liftable artificial plants floating floor | |
| CN206814489U (en) | The combined ecological floating island of multi-layer compound structure | |
| CN114409182A (en) | Wetland water quality purification ecological restoration system | |
| CN205500928U (en) | Ecological bed and ecological bed system of floating of floating | |
| CN211971907U (en) | Wetland ecological remediation chinampa | |
| CN202346839U (en) | Hinge type floating bed | |
| CN213803130U (en) | Ecological floating bed convenient to fix for repairing black and odorous water body gushes in river | |
| CN214990573U (en) | Soilless wetland floating bed for purifying water body | |
| JPH08331998A (en) | Structure for purifying water of natural water system | |
| CN209010327U (en) | Floating wetland planting frame unit | |
| CN212127713U (en) | Composite structure for river ecological restoration | |
| CN211546102U (en) | Ecological floating bed for purifying water quality | |
| KR102287696B1 (en) | Unit vegetation modules with improved water quality, fish egg laying and biotope function in stagnant waters and floating wetlands containing it | |
| CN108751421B (en) | Wind-wave-resistant ecological floating island and construction method thereof | |
| CN107935210B (en) | Self-aeration device based on reed straw biological membrane and application | |
| CN203781921U (en) | Multistep ecological water body purifying system | |
| CN214031894U (en) | Ecological floating island for improving rural water environment | |
| CN202156957U (en) | In-situ ecological restoration device for natural water body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220429 |