CN211394026U - Floating wetland with porous carrier structure - Google Patents
Floating wetland with porous carrier structure Download PDFInfo
- Publication number
- CN211394026U CN211394026U CN201922060838.0U CN201922060838U CN211394026U CN 211394026 U CN211394026 U CN 211394026U CN 201922060838 U CN201922060838 U CN 201922060838U CN 211394026 U CN211394026 U CN 211394026U
- Authority
- CN
- China
- Prior art keywords
- porous carrier
- layer
- porous
- carrier layer
- floating wetland
- 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
Images
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
- Hydroponics (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a floating wetland with a porous carrier structure, which comprises a planting soil layer and a porous carrier layer which are oppositely arranged up and down, wherein the porous carrier layer is formed by splicing a plurality of porous carrier units, a plurality of holes are arranged in the porous carrier units, every two adjacent porous carrier units are connected through a plurality of connecting pieces, and through holes for the connecting pieces to pass through are arranged on the porous carrier units; the porous carrier unit comprises a first porous carrier layer and a second porous carrier layer which are oppositely arranged from top to bottom, fixing parts are arranged on two sides of the bottom of each porous carrier layer, and the porous carrier layers are fixedly connected with the positioning bodies through the fixing parts. The utility model provides a floating wetland with porous carrier structure, porous carrier layer has very big pore structure, can attach a large amount of biomembranes, improves water purification efficiency greatly, and has the branch root growth of aquatic plant, the falling growth of plant around for floating wetland provides the space; the whole structure has high stability, strong wind and wave resistance and low operating cost.
Description
Technical Field
The utility model relates to a sewage treatment device field especially relates to a wetland floats with porous carrier structure.
Background
The eutrophication of the water body is a global water environment problem, and the total area of the existing lakes 2700 in China reaches 9.1 km 2. According to survey data and evaluation of lake eutrophication indexes at home and abroad, in 37 typical major lakes in China, the medium eutrophic type and the medium eutrophic type account for 55.8%, the eutrophic type accounts for 14.7%, and the heavy eutrophic type accounts for 8.8%. More than 90% of water pollution in China is caused by eutrophication caused by high N, P content in water, and N, P is the most essential nutrient element for plant growth. The artificial wetland technology is easy to block if running all the year round due to higher running cost; high design requirement, wide occupied area, large engineering quantity and the like, and is not suitable for all water bodies. The technology is a biological control method for purifying water quality by planting higher aquatic plants or terrestrial plants into eutrophic water areas by using floatable materials as substrates or carriers and reducing nitrogen, phosphorus and organic pollutants in the water through the root absorption or adsorption of the plants, and meanwhile, the eutrophic substances in the water are moved away from the water by a plant harvesting method to improve the water quality and create a good water environment. The ecological floating island, the artificial biological floating bed, the floating bed soilless culture and the like in some documents at present are the same or similar concepts.
Through decades of research and development, the ecological floating island technology at home and abroad is greatly improved, but still has some problems and disadvantages: the existing ecological floating island cultivation is not easy to be standardized and popularized; difficult to implement mechanized operations; the manufacturing construction period is long; difficult to pass winter; extreme high winds, rain and waves are difficult to resist; the area of the monomer is small, and ecological restoration of large rivers and lakes is difficult to carry out.
To solve the above problems and disadvantages, floating island wetlands have been continuously developed. The floating wetland is an ecological floating platform which takes carrier filling as a main body, promotes the formation of water quality purification as a main purpose, has ecological and landscape functions, realizes the interaction of plants, the carrier filling, microorganisms, atmosphere and various links of an ecological system with water, and is a movable water body purification treatment plant in a water body.
The floating wetland is also called as a floating wetland, and is used for removing water pollutants and realizing the ecological restoration function by building a structure similar to an artificial wetland in a water body. Compared with the traditional constructed wetland, the floating wetland can directly act on the laid water body, meets the requirements of various water level changes, adapts to different water depths, does not need to occupy land resources, is quick to construct, and has higher treatment efficiency per unit area than the constructed wetland. The floating wetland combined with water conservancy design can be applied to various sewage treatments, and is a brand-new water ecological treatment method. The technology can remove various pollutants such as nitrogen, phosphorus, organic matters, heavy metals and the like in the water body, effectively control algae, improve the black and odorous water body and restore the water ecological environment.
The working principle of the floating wetland is similar to that of the subsurface wetland, the combined action of microbial decomposition and plant absorption of the filler (carrier) is integrated, and the long-acting ecological effect is realized on the basis of stable product structure and quality guarantee; the floating wetland technology constructed in the water body meets the multi-level requirements of the water environment function.
The existing ecological floating island and artificial wetland have the following main defects:
(1) the traditional ecological floating island is simple in structure, and low-temperature materials are easy to be brittle and difficult to overwinter in winter; the large wind waves are difficult to resist, and secondary pollution is caused after the large wind waves are dispersed; only a small amount of plants are used for purification, and the floating body has no purification function; the selectable species of the plants are limited, and arbor shrubs are difficult to plant; the exposed surface is much, and the landscape effect is poor.
(2) The artificial wetland has higher operating cost and is easy to block if the artificial wetland is operated all year round; the design requirement is high, the occupied area is wide, and the engineering quantity is large.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a wetland floats with porous carrier structure improves water purification efficiency, improves overall structure stability, technical scheme as follows:
the utility model provides a floating wetland with porous carrier structure, it includes relative planting soil layer and the porous carrier layer that sets up from top to bottom, the porous carrier layer is formed by the concatenation of a plurality of porous carrier units, all be provided with a plurality of holes in the porous carrier unit, can dismantle the connection through a plurality of connecting pieces between every two adjacent porous carrier units, set up the through hole that supplies the connecting piece to pass on the porous carrier unit; the porous carrier unit comprises a first porous carrier layer and a second porous carrier layer which are oppositely arranged up and down, the first porous carrier layer and the second porous carrier layer are fixedly connected, the first porous carrier layer is made of a plant fiber material, and the second porous carrier layer is made of a polyester fiber or polyurethane fiber material; planting holes are formed in the planting soil layer and the porous carrier layer, and aquatic plants are planted in the planting holes; fixing parts are arranged on two sides of the bottom of the porous carrier layer, and the porous carrier layer is fixedly connected with the positioning body in water through the fixing parts.
Further, the second porous support layer is a foamed sponge, and the foamed sponge is made of a polyurethane material.
Further, the specific surface area of the porous support unit is set to be 1500-.
Further, the first porous support layer is a coir mat or a coconut mat.
Further, be provided with the viscose layer between second porous carrier layer and the first porous carrier layer, the viscose layer is AB glue.
Further, the second porous support layer and the first porous support layer are fixedly connected through rivets.
Furthermore, the planting soil layer is nutrient soil, light ceramsite or glass pumice, and covers the first porous carrier layer and the planting holes.
Further, the connecting piece is a PVC pipe or a stainless steel pipe; the fixing piece is a stainless steel rope or a chain ring.
Further, the porous support layer is of a circular, square or irregular structure.
Further, the wetland that floats still establishes at submarine pile body and cover the activity lantern ring on the pile body, the activity lantern ring is fixed to be set up the bottom of mounting, mounting upper end and porous carrier layer fixed connection, the relative pile body of activity lantern ring can be along its axial direction removal.
The utility model provides a beneficial effect that technical scheme brought as follows:
a. the utility model provides a floating wetland with porous carrier structure, porous carrier layer has very big pore structure, can attach a large amount of biomembranes, improves water purification efficiency greatly, and has the branch root growth of aquatic plant, the falling growth of plant around for floating wetland provides the space;
b. the porous carrier layer can provide large buoyancy and can be used for planting trees, shrubs, flowers and plants, simulated plants, small sculptures and the like; the landscape can be designed into any pattern through cutting and recombination, and the landscape modeling is high; the whole structure has high stability, dense and developed root systems are arranged in a unit area, the hydraulic influence factor satisfaction degree is high, the wind wave resistance is strong, and the water-cooled hydraulic generator is suitable for different water environment requirements;
c. the material of the porous carrier layer is frost resistant, and can run for many years; the operation cost is low, and special maintenance is basically not needed in the later period.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a sectional structure view of a floating wetland with a porous carrier structure provided by the embodiment of the invention;
fig. 2 is a cross-sectional view of a porous support layer of a floating wetland having a porous support structure according to an embodiment of the present invention;
fig. 3 is a plan view of a porous support layer of a floating wetland having a porous support structure according to an embodiment of the present invention.
Wherein the reference numerals include: 1-planting soil layer, 2-porous carrier layer, 21-first porous carrier layer, 22-second porous carrier layer, 23-adhesive layer, 3-holes, 4-fixing piece, 5-positioning body, 6-aquatic plant and 7-through hole.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
The utility model provides a wetland floats with porous carrier structure, see figure 1, it includes relative planting soil layer 1 and the porous carrier layer 2 that sets up from top to bottom, the concrete structure of planting soil layer 1 is as follows: the planting soil layer 1 is nutrient soil, light ceramsite or glass pumice, or the planting soil layer 1 is formed by mixing the nutrient soil, the light ceramsite and the glass pumice, through planting holes are formed in the planting soil layer 1 and the porous carrier layer 2, aquatic plants 6 are planted in the planting holes, the planting soil layer 1 covers the first porous carrier layer 21 and the planting holes, a connector is not needed to be connected between the planting soil layer 1 and the porous carrier layer 2, and the planting soil layer 1 is mainly used as a carrier for fixing and stabilizing plants and provides nutrients for plant growth. The floating wetland is positioned on water, and for clarity, line a in fig. 1 represents the water surface and line b represents the water bottom.
The specific structure of the porous support layer 2 is as follows: the porous support layer 2 is formed by splicing a plurality of porous support units, referring to fig. 2 and 3, the porous support units comprise a first porous support layer 21 and a second porous support layer 22 which are oppositely arranged up and down, the second porous support layer 22 is fixedly connected with the first porous support layer 21, the first porous support layer 21 is made of a plant fiber material, and the first porous support layer 21 is a palm mat or a coconut mat which is made of long fibers of palm or coconut. The second porous carrier layer 22 is made of polyester fiber or polyurethane fiber material, the second porous carrier layer 22 is foamed sponge, the foamed sponge is made of polyurethane, or the second porous carrier layer is PBT (polybutylene terephthalate), the polyester fiber is fully named polybutylene terephthalate, and the polyester fiber has the advantages of high hardness, wear resistance, high pressure resistance and high bearing capacity; or the second porous carrier layer is PTT which is fully called polytrimethylene terephthalate, and the PTT has hydrophilicity and strong water absorption performance and can provide a water source necessary for the growth of wetland plants. Be provided with viscose layer 23 between second porous carrier layer 22 and the first porous carrier layer 21, viscose layer 23 is environmental protection glue (AB glue), or, carry out fixed connection through riveting between second porous carrier layer 22 and the first porous carrier layer 21. The second porous carrier layer 22 and the first porous carrier layer 21 both have certain flexibility, collision resistance and certain bearing capacity, and are easy to mold and secondary process.
The porous carrier unit is internally provided with a plurality of setting holes 3 with the diameter of 50-80cm, namely a three-dimensional porous structure which is in a hollow sponge shape, a plurality of holes (pore bodies) are arranged in all dimensions of the upper, the lower, the front, the rear, the left and the right, the arrangement can be regular or disordered, and the specific surface area range of the porous carrier unit is set to be 1500-doped 2000m2/m3The porosity is set to be 85-98%, the porosity is preferably 90%, and the planting hole number is 21 holes/m2Average bearing weight of 35-50kg/m2The service life is not less than 15 years; the carrier material has a high-efficiency biological filler function, and due to the characteristics of a large surface area, a high pore structure, filamentous fibers and the like, the carrier material is beneficial to the root division and the falling growth of plants, the roots are planted in the carrier transversely and longitudinally, and the penetration growth rate of the plant root system under water reaches 100%, so that the floating wetland structure is more stable, and the requirement of the plants for overwintering can be met; but also provides inhabitation and breeding space for various animals (insects, zooplankton, fishes and shellfishes, etc.), and is beneficial to microorganismsThe formation of the membrane greatly accelerates the efficiency of water purification and has no secondary pollution; meanwhile, the carrier can be shaped randomly through cutting and splicing, and the landscape effect is good.
The connection mode among the porous carrier units is as follows: can dismantle the connection through a plurality of connecting pieces between per two adjacent porous carrier units, set up the through hole 7 that supplies the connecting piece to pass on the porous carrier unit, specifically, adopt inside through type hole structural connection between the porous carrier unit, bury connecting piece (PVC pipe or nonrust steel pipe) underground in the through hole 7 of space material, the connecting piece level runs through the unit, and the unit is connected the rethread rope and is passed the space and connect, and the structure is firm, need not to use fixed modes such as covering net, frame and guarantees its structural strength.
The utility model provides a wetland floats with porous carrier structure, the plant is pricked root to the aquatic after, porous carrier layer 2 promotes vegetation, especially the growth of root system with planting soil layer 4 to bigger plant total amount obtains more pollutant removal volume that realizes through plant absorption assimilation and root system adsorption, can realize the plant division on the wetland surface 100% area that floats, the growth of falling. After the plants are mature, the density of the plants is not lower than 65 plants/m2。
The utility model provides a wetland's fixed system floats adopts the heavy object method, porous carrier layer 2's bottom both sides all are provided with mounting 4, and mounting 4 is 304 stainless steel rope or chain ring, and the diameter is 8mm, porous carrier layer 2 passes through mounting 4 and 5 fixed connection of the location body in the aquatic, and the length of mounting 4 and the mounting point position and the weight of the location body 5 need be according to data adjustment such as on-the-spot actual topography, depth of water, theory water level variation condition and final definite. When in use, the floating device can realize up-and-down floating through the chain connection. Or a pile driving body fixing method is adopted, a pile driving body is driven at the water bottom, the bottom end of the fixing piece is provided with a movable lantern ring, the movable lantern ring is sleeved on the pile body, the upper end of the fixing piece is fixedly connected with the porous carrier layer 2, the movable lantern ring can move along the axial direction of the pile body relative to the pile body, and the movable lantern ring can realize up-and-down floating; the upper end of the pile body is also provided with a limiting part for limiting the pile body separated from the movable lantern ring.
The utility model provides a wetland floats when later maintenance, can regularly prune the plant when needing, during spring postpones seedling stage, reseed the plant in necessary area a small amount, in addition, need not later maintenance basically.
The utility model provides a floating wetland with a porous carrier structure, the porous carrier layer has a very large pore structure, a large number of biological membranes can be attached, and the water purification efficiency is greatly improved; the initial planting density of the plants is high, the hollow structure is beneficial to the extension of plant root systems, and the dense and developed root systems are arranged in a unit area, so that the total plant amount of the dense wetland is increased year by year; the pore structure of the porous carrier layer ensures that each inch of the porous carrier layer can be used as a place for the growth of plant roots, thereby providing a space for the root-divided growth of existing aquatic plants and the falling growth of peripheral plants in the floating wetland; the porous carrier layer can provide large buoyancy, and can be used for planting trees, shrubs, flowers and plants, simulated plants, small sculptures and the like with the buoyancy not exceeding 40 KG/square meter; the landscape can be designed into any pattern through cutting and recombination, and the landscape modeling is high; the material of the porous carrier layer is frost resistant, and can run for many years; the operation cost is low, and special maintenance is basically not needed in the later period.
The utility model provides a floating wetland with porous carrier structure, physical structure can satisfy the root development demand that the plant fully develops, satisfies the cubical space demand that the plant bred (branch, son etc.), provides the breeding space of perching for all kinds of animals (insect, zooplankton, fish shellfish etc.); the requirement of forming a microbial film can be met in terms of physical structure and material selection, and the water purification effect is obvious due to good hydraulic conductivity; the structure stability is high, dense and developed root systems are arranged in a unit area, the hydraulic influence factor satisfaction degree is high, the wind wave resistance is strong, and the water-resistant water-cooled generator is suitable for different water environment requirements; secondary pollution is avoided; the construction flexibility is high, the method can adapt to the working conditions (water surface size and water depth) of different projects, different plane shape structures (round, square and special-shaped) are designed according to requirements (plant types, flowers, plants, trees and functions), and scenery (three-dimensional shape and true and false plant matching) is required for the module shape; different vegetation can be selected according to different climatic environments; the ecological environment-friendly property ensures the full development of vegetation, can meet the overwintering requirement, meets the time period requirement of ecological circle restoration, and has high biological acceptance; the bulk density is small, and the transportation and the installation are convenient; the service life is long.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The floating wetland with the porous carrier structure is characterized by comprising a planting soil layer (1) and a porous carrier layer (2) which are oppositely arranged up and down, wherein the porous carrier layer (2) is formed by splicing a plurality of porous carrier units, a plurality of holes (3) are formed in the porous carrier units, every two adjacent porous carrier units are detachably connected through a plurality of connecting pieces, and through holes (7) for the connecting pieces to pass through are formed in the porous carrier units; the porous carrier unit comprises a first porous carrier layer (21) and a second porous carrier layer (22) which are oppositely arranged up and down, the first porous carrier layer (21) and the second porous carrier layer (22) are fixedly connected, the first porous carrier layer (21) is made of a plant fiber material, and the second porous carrier layer (22) is made of a polyester fiber or polyurethane fiber material; planting holes are formed in the planting soil layer (1) and the porous carrier layer (2), and aquatic plants (6) are planted in the planting holes; the bottom both sides of porous carrier layer (2) all are provided with mounting (4), porous carrier layer (2) are through mounting (4) and positioning body (5) fixed connection in aqueous.
2. The floating wetland having a porous support structure according to claim 1, wherein the second porous support layer (22) is a foamed sponge made of a polyurethane material.
3. The floating wetland having a porous carrier structure according to claim 1, wherein the range of the specific surface area of the porous carrier unit is setIs set as 1500-2/m3The porosity of the porous support unit is set in the range of 90% to 98%.
4. The floating wetland having a porous support structure according to claim 1, wherein the first porous support layer (21) is a coir mat or a coconut mat.
5. The floating wetland with a porous carrier structure according to claim 1, wherein an adhesive layer (23) is arranged between the first porous carrier layer (21) and the second porous carrier layer (22), and the adhesive layer (23) is AB glue.
6. The floating wetland with a porous support structure according to claim 1, wherein the first porous support layer (21) and the second porous support layer (22) are fixedly connected through rivets.
7. The floating wetland with a porous carrier structure according to claim 1, characterized in that the planting soil layer (1) is nutrient soil, light ceramsite or glass pumice, and the planting soil layer (1) covers the first porous carrier layer (21) and the planting holes.
8. The floating wetland with a porous carrier structure according to claim 1, wherein the connecting piece is a PVC pipe or a stainless steel pipe; the fixing piece (4) is a stainless steel rope or a chain ring.
9. The floating wetland with a porous support structure according to claim 1, wherein the porous support layer (2) is of a circular, square or irregular structure.
10. The floating wetland with the porous carrier structure is characterized in that the floating wetland further comprises a pile body arranged at the bottom of the water and a movable lantern ring sleeved on the pile body, the movable lantern ring is fixedly arranged at the bottom end of the fixing part, the upper end of the fixing part is fixedly connected with the porous carrier layer (2), and the movable lantern ring can move along the axial direction of the movable lantern ring relative to the pile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922060838.0U CN211394026U (en) | 2019-11-26 | 2019-11-26 | Floating wetland with porous carrier structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922060838.0U CN211394026U (en) | 2019-11-26 | 2019-11-26 | Floating wetland with porous carrier structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211394026U true CN211394026U (en) | 2020-09-01 |
Family
ID=72222058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922060838.0U Active CN211394026U (en) | 2019-11-26 | 2019-11-26 | Floating wetland with porous carrier structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211394026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115504580A (en) * | 2022-10-20 | 2022-12-23 | 上海勘测设计研究院有限公司 | Ecological restoration system and restoration method for closed landscape water body |
-
2019
- 2019-11-26 CN CN201922060838.0U patent/CN211394026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115504580A (en) * | 2022-10-20 | 2022-12-23 | 上海勘测设计研究院有限公司 | Ecological restoration system and restoration method for closed landscape water body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103332790B (en) | Light enhancing oxygen-enriched organism structural system for synchronously repairing eutrophicated water bodies in rivers and lakes and sediments in situ | |
| CN205061667U (en) | Little aeration water purification device | |
| JP2008500062A (en) | Super expansion, buoyancy adjustment type floating island | |
| CN2773062Y (en) | Biological float island frame | |
| CN201029355Y (en) | Screen wire plant solution cultivation floating bed | |
| CN208916915U (en) | Composite fibre single-bit module and floating wetland comprising it | |
| CN205170504U (en) | Three -dimensional ecological bed that floats | |
| CN101190813A (en) | Soft plant floating bed for protecting bank and purifying water | |
| CN200959767Y (en) | Overall plastic composite culturing floating bed for plant on water | |
| CN106495329B (en) | Floating island monomer and ecological floating island using same | |
| CN201873574U (en) | Integrated type artificial ecological floating island module | |
| CN103232115A (en) | Multifunctional captive breeding type floating island based on carbon fiber | |
| CN211394026U (en) | Floating wetland with porous carrier structure | |
| CN204474417U (en) | A kind of artificial aquatic weed | |
| CN210945026U (en) | Water ecological remediation floats bed | |
| CN102718323A (en) | Novel artificial stereo waterweed | |
| CN210030177U (en) | Aquatic plant growth platform with adjustable depth | |
| CN209778451U (en) | Combined solar aeration biological floating bed | |
| CN208791295U (en) | A kind of modularization high throughput Bioaugnentation type floating wetland | |
| CN203999153U (en) | A kind of sun power microkinetic is from pouring dry type ecological floating island | |
| CN113371839B (en) | Construction method of underwater forest for ecological restoration of water body | |
| CN103214094A (en) | Fixed type composite layer net supporting floating island | |
| CN213537424U (en) | Aquatic ecosystem based on floating island construction | |
| CN108675455A (en) | A method of for rebuilding city dredging lake Health- Ecosystem | |
| CN210683348U (en) | Water ecological restoration net capable of being directly used for purifying outdoor sewage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |