CN113149226A - Three-dimensional wetland system for ecological restoration of hard revetments of riverway - Google Patents
Three-dimensional wetland system for ecological restoration of hard revetments of riverway Download PDFInfo
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- CN113149226A CN113149226A CN202110437327.5A CN202110437327A CN113149226A CN 113149226 A CN113149226 A CN 113149226A CN 202110437327 A CN202110437327 A CN 202110437327A CN 113149226 A CN113149226 A CN 113149226A
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- 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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The invention relates to the field of river water purification, in particular to a three-dimensional wetland system for ecological restoration of a hard revetment of a river channel. The three-dimensional wetland system comprises a three-dimensional wetland plant groove, greening plants, wetland fillers, a water distribution pipeline and an automatic control system, wherein the three-dimensional wetland plant groove is ecologically fused with a hard revetment of a surrounding river channel, the three-dimensional wetland plant groove is fixed on a vertical surface of the hard revetment, the wetland fillers are filled in the three-dimensional wetland plant groove, the greening plants are planted on the wetland fillers, the water distribution pipeline is connected with the three-dimensional wetland plant groove, and the automatic control system controls the water distribution pipeline to distribute water in a partitioned manner. The vertical space of the river channel is fully utilized to construct the three-dimensional wetland system, so that the vertical hard revetment of the river channel is regreened to beautify the landscape, meanwhile, various fillers with the water quality purification function are added into the plant planting matrix, the solar drive is utilized for full-automatic control, and the river channel water is taken to irrigate the three-dimensional wetland, so that the purification of the slightly polluted river water is realized.
Description
Technical Field
The invention relates to the field of river water purification, in particular to a three-dimensional wetland system for ecological restoration of a hard revetment of a river channel.
Background
The urban high-intensity development and urban construction continuously occupy river ecological space, and particularly river hardening is serious due to excessive urbanization construction of the river space. The hard revetment is mostly fixed with cement mortar and masonry stones, the waterside part of the river is completely or partially hardened, a plant growth space cannot be provided, the material exchange between the revetment and the water body is cut off, the degradation path of water pollutants is reduced, the runoff pollution of initial rainwater which is not intercepted is increased, and the problems of serious loss of ecological service functions of river, such as biodiversity maintenance, water environment purification, water culture landscape and the like are caused.
On the basis of not changing the existing hard revetment, aiming at the main problems, the water self-purification capacity and revetment ecological environment of the river channel are improved, and currently, the measures generally adopted are to carry out in-situ ecological restoration in the river channel, such as constructing an ecological floating bed, adding microbial strains, increasing water aeration facilities and the like. The measures only consider enhancing the water purification effect in situ in the riverway, but do not fully utilize the existing hard revetment to take ectopic measures to enhance the water purification capability and revetment landscape effect. In addition, for some rain source type river water level soaring and falling hydrological conditions in the rich and dry water period, ecological restoration measures such as ecological floating bed and microbial strain addition are not suitable for long-term maintenance.
Disclosure of Invention
The invention aims to fully utilize the space of a hard revetment of a river channel to purify the water quality of the river and restore the landscape of the revetment, and provides a three-dimensional wetland system for ecological restoration of the hard revetment of the river channel.
The invention provides a three-dimensional wetland system for ecological restoration of a hard revetment of a river channel, which comprises three-dimensional wetland plant tanks, greening plants, wetland fillers, a water distribution pipeline and an automatic control system, wherein the three-dimensional wetland plant tanks are ecologically fused with the hard revetment of the surrounding river channel, the three-dimensional wetland plant tanks are fixed on the vertical surface of the hard revetment, the wetland fillers are filled in the three-dimensional wetland plant tanks, the greening plants are planted on the wetland fillers, the water distribution pipeline is connected with the three-dimensional wetland plant tanks, the automatic control system controls the water distribution pipeline to distribute water in a partitioning manner, and the three-dimensional wetland system is constructed by a single three-dimensional wetland plant tank or a plurality of three-dimensional wetland plant tanks in a jigsaw manner.
As a further improvement of the invention, the three-dimensional wetland plant tank is in a shape of resisting water flow impact including a trapezoid body, and the three-dimensional wetland plant tank is made of a waterproof and anticorrosive material.
As a further improvement of the invention, the wetland filler is prepared by mixing a planting matrix and a water purification filler to prepare a mixed cultivation matrix, the planting matrix and the water purification matrix are filled in layers, the upper layer is the planting matrix, and the lower layer is the water purification matrix.
As a further improvement of the invention, the greening plants comprise adsorption climbing type, winding climbing type and water power impact resistant landscape plants.
As a further improvement of the invention, the three-dimensional wetland planting tank comprises an upper layer wetland and a lower layer wetland which are connected in series for operation, the upper layer wetland is connected with a water distribution pipeline and is uniformly distributed in a subarea manner by an automatic control system, and a water inlet channel of the lower layer wetland is connected with a water outlet channel of the upper layer wetland.
As a further improvement of the invention, the upper wetland is a first-stage wetland, and the lower wetland is a second-stage wetland or a multi-stage wetland.
As a further improvement of the invention, the three-dimensional wetland system comprises a drainage branch pipe and a drainage main pipe, wherein the bottom of the three-dimensional wetland plant tank of the upper wetland is provided with a drainage hole, the drainage hole is provided with a water filtering net pad, one end of the drainage branch pipe is connected with the drainage hole through the water filtering net pad, the other end of the drainage branch pipe is connected with the three-dimensional wetland plant tank of the lower wetland, and the drainage end of the lower wetland is converged and connected to the drainage main pipe.
As a further improvement of the invention, the water distribution pipeline comprises a main water distribution pipe and branch water distribution pipes, the main water distribution pipe is connected with the branch water distribution pipes, the branch water distribution pipes are respectively connected with a plurality of three-dimensional wetland plant tanks, and the branch water distribution pipes are provided with water outlet holes at spaced water distribution points and supply water to the three-dimensional wetland plant tanks through the water outlet holes.
As a further improvement of the present invention, the automatic control system comprises a controller, an electric valve, a water pipe, a water storage tank, and a river lift pump, wherein the river lift pump is connected to a water inlet end of the water storage tank through the water pipe, a water outlet end of the water storage tank is connected to the water distribution pipe, the controller is connected to and controls the electric valve, and the electric valve is disposed on the water distribution pipe.
As a further improvement of the invention, the automatic control system comprises a solar power generation driving device which is connected with and drives the electric valve.
The invention has the beneficial effects that: the vertical space of the river channel is fully utilized to construct the three-dimensional wetland system, so that the vertical hard revetment of the river channel is regreened to beautify the landscape, meanwhile, various fillers with the water quality purification function are added into the plant planting matrix, the solar drive is utilized for full-automatic control, and the river channel water is taken to irrigate the three-dimensional wetland, so that the purification of the slightly polluted river water is realized.
Drawings
FIG. 1 is a single structure diagram of a three-dimensional wetland plant tank in the invention;
FIG. 2 is a top view structural view of the vertical wetland vegetation tank of the invention;
FIG. 3 is a fixed hole bitmap of a three-dimensional wetland plant tank in the invention;
FIG. 4 is a water discharge hole bitmap of the three-dimensional wetland plant tank in the invention;
FIG. 5 is an elevation view of a vertical wetland plant tank of the present invention;
fig. 6 is a water distribution and drainage system diagram of the three-dimensional wetland system of the invention.
The reference numerals in the drawings denote the following parts:
the device comprises a three-dimensional wetland plant tank 1, greening plants 2, wetland fillers 3, fixing bolts 4, plant tank fixing preformed holes 5, a hard revetment 6, a river water lift pump 7, a water storage tank 8, a water delivery pipeline 9, an electric valve 10, a water distribution main pipe 11, a water distribution branch pipe 12, a water distribution point 13, a water filtering gauze pad 14, a drainage branch pipe 15 and a drainage main pipe 16.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 6, the three-dimensional wetland system for ecological restoration of the hard revetment of the river channel comprises a three-dimensional wetland plant groove 1, greening plants 2, wetland fillers 3, a water distribution pipeline and an automatic control system, wherein the three-dimensional wetland plant groove 1 is ecologically fused with the hard revetment of the surrounding river channel, the three-dimensional wetland plant groove 1 is fixed on the vertical surface of the hard revetment 6, the wetland fillers 3 are filled in the three-dimensional wetland plant groove 1, the greening plants 2 are planted on the wetland fillers 3, the water distribution pipeline is connected with the three-dimensional wetland plant groove 1, the automatic control system controls the water distribution pipeline to distribute water in a partitioned manner, the three-dimensional wetland system is constructed by a single three-dimensional wetland plant groove 1, or a plurality of three-dimensional wetland plant grooves 1 are constructed in a jigsaw manner.
As shown in fig. 2, the three-dimensional wetland plant tank 1 is in a revetment suspension type, the three-dimensional wetland plant tank 1 is provided with plant tank fixing preformed holes 5, and is fixed on the vertical surface of the hard revetment 6 by the matching of the fixing bolts 4 and the plant tank fixing preformed holes 5, the three-dimensional wetland plant tank 1 is flexible in arrangement form, the ecological revetment effect is constructed according to landscape requirements, and the revetment ecological restoration landscape effect can be constructed by adopting a jigsaw puzzle mode. The shape, color, texture and the like of the three-dimensional wetland plant tank 1 are fused with the surrounding environment, so that a beautiful and comfortable ecological revetment environment of the riverside is created.
The three-dimensional wetland plant tank 1 adopts a trapezoidal shape and other shapes which are resistant to water flow impact, but not limited to the trapezoidal shape, and has the characteristics of no water resistance, no fear of silt deposition, no influence of floaters and no influence on flood control safety. The material of the three-dimensional wetland plant tank 1 is mainly waterproof material, so that the three-dimensional wetland plant tank is prevented from being rusted and damaged, and the selectable materials comprise waterproof and anticorrosive materials such as synthetic fiber, plastic, anticorrosive carbon steel, stainless steel and the like, but are not limited to the materials. The three-dimensional wetland plant tank 1 adopts an integrated forming structure, the height of the three-dimensional wetland plant tank 1 is 40-60cm, the length of a fixing back plate of the three-dimensional wetland plant tank 1 and a hard revetment 6 is 80-120cm, and the net depth of a trapezoidal body is 30 cm.
The greening plants 2 are selected according to the particularity of planting conditions, plants with strong stress resistance, proper growth speed, excellent ecological function and good adaptability are selected, and landscape plants with rich colors and beautiful shapes are combined and configured. The greening plants 2 are preferably adsorption climbing type, winding climbing type and water impact resistant landscape plants, such as parthenocissus tricuspidata, ivy, roses, quisqualis, campsis grandiflora and the like. The greening plant 2 can quickly establish a plant community, revetment greening can be quickly completed, the plant is easy to maintain, the plant florescence is long, only low maintenance cost is needed, and the requirements of landscape and ecological protection functions can be simultaneously met.
As shown in fig. 5, the three-dimensional wetland plant tank 1 is filled with wetland fillers 3, the wetland fillers 3 are mixed by adopting a planting matrix and a water purification matrix, and the volume ratio of the planting matrix to the water purification matrix is 1: 1. The planting matrix and the water purification matrix are filled in a layered mode, the upper layer is the planting matrix, and the lower layer is the water purification matrix. The planting matrix mainly comprises soil and peat soil; the water purification substrate is selected from one or more of volcanic rock, zeolite, oyster shell, activated carbon and ceramsite, and the particle size range of the water purification substrate is 4-8 mm.
According to the actual water quality of the inflow river, a plurality of water purification matrixes are selected for matching. The water purification substrate preferably ranks the ammonia nitrogen removal capacity: zeolite, activated carbon, volcanic rock, oyster shell and ceramsite; the order of the phosphorus removal capacity is preferably: ceramsite, oyster shell, zeolite, activated carbon and volcanic rock.
The wetland filler 3 is prepared by mixing a planting matrix and a water purification filler to prepare a mixed cultivation matrix. The planting substrate is utilized to enable the water permeability, the air permeability, the nutrition and the like of the planting substrate to achieve the state which is most suitable for the growth of plants. The efficient water purification substrate is applied to cooperate with plant roots and microorganisms to form a wetland microenvironment to deeply treat irrigated river water so as to achieve the purpose of water purification.
The three-dimensional wetland system adopts a pipeline to automatically control water distribution. The river water is directly lifted to a water distribution pipeline system through a river water lifting pump 7, or is lifted to a high-level water storage tank 8 at the top end of a hard revetment 6, and then the water is controlled and distributed to different wetland water distribution areas through an electric valve 10. When the riverway adopts the tail water replenishing condition of a pressure pipeline sewage plant, the main water distribution pipe 11 of the three-dimensional wetland system is connected with a water replenishing pressure pipeline, and the riverway water replenishing and the wetland water distribution are controlled in a coordinated electric mode.
As shown in fig. 6, the water inlet pipe of the three-dimensional wetland irrigation system is arranged on one side of a hard revetment 6 for vertical water supply, the river water is lifted to a water inlet pipeline by a river water lifting pump 7 and then to a high-level water storage tank 8, the subarea water distribution of the wetland is controlled by an electric valve 10, and then the subarea water distribution is conveyed to different three-dimensional wetland plant tanks 1 by a main water distribution pipe 11 and branch water distribution pipes 12. The water delivery pipeline 9, the main water distribution pipe 11 and the branch water distribution pipes 12 are made of PE or stainless steel, and the pipe diameters are DN 25-DN 50. The three-dimensional wetland system adopts an electric valve 10 to automatically control the pipeline to distribute water in a subarea manner.
The water inlet of the three-dimensional wetland plant tank 1 adopts an automatic control system and consists of a controller, an electric valve 10, a water conveying pipeline 9 and the like. The irrigation frequency of the three-dimensional wetland is set through the controller, the control panel is adjusted according to the water quality target of the effluent, the growth period of the plants, the revetment orientation and the like, and the water distribution period and time of the three-dimensional wetland are optimized.
A water outlet is formed in the position of a water distribution point 13 of the water distribution branch pipe 11 at a certain interval, a water dropper and a water dropper are arranged on the water outlet to supply water to the three-dimensional wetland tank, and water flows into the wetland plant tank 1 in a jet shape to moisten a plant root area in a fine water flow mode. According to the distribution form and the requirement of the three-dimensional wetland, a plurality of horizontal drip irrigation pipes can be arranged on the water distribution branch pipes 12 at certain intervals.
As shown in fig. 6, the three-dimensional wetland plant tank 1 can adopt an upper-layer wetland and a lower-layer wetland series operation mode according to the height of a hard revetment and landscape requirements, the upper-layer wetland (first-stage wetland) is distributed by automatic control and in a unified partition mode, the lower-layer wetland (second-stage wetland or multi-stage wetland) is accessed by the water discharged from the upper-layer wetland, a drain hole phi 10mm is reserved at the bottom of the three-dimensional wetland plant tank 1, a water filtering gauze pad 14 with the phi 1mm is laid on the drain hole, the water discharged from the upper-layer wetland is communicated with the lower-stage wetland through a drain branch pipe 15 and is accessed by self-flow, and the water is sequentially distributed to different three-dimensional wetland systems from top to bottom.
The three-dimensional wetland adopts an intermittent water inlet and outlet mode, and drains water in an organized manner, and the three-dimensional wetland plant tanks 1 collect water in an organized manner to the main drainage pipe 16 after being purified by the three-dimensional wetland system after being watered and drained every time, and then collect and drain the water to a river channel, so that the circulating purification of river water is realized. The main drainage pipe 16 and the branch drainage pipes 15 for the effluent of the three-dimensional wetland are made of PE or PVC, and the pipe diameters are DN 32-DN 75.
The three-dimensional wetland automatic control system is driven by solar photovoltaic, and a solar light panel is arranged according to local conditions, so that the dependence on an external power supply is reduced. When the riverway adopts the tail water replenishing condition of the pressure pipeline sewage plant, the water conveying pipeline 9 of the three-dimensional wetland system is connected with the water replenishing pressure pipeline, and the riverway water replenishing and the wetland water distribution are controlled in a coordinated electric mode.
An ecological restoration three-dimensional wetland system is installed on a hard revetment of a river channel, the river channel water is adopted for irrigation and is subjected to circulating purification, and the hydraulic load is 0.33m3/m2D, feed water NH4 +The concentration of N is between 0.6 and 2.68mg/L, and the effluent NH4 +N concentration of 0.32-1.65mg/L vs. NH4 +The average removal of-N was 34.7%; the concentration of the inlet water TP is between 0.24 and 0.62mg/L, the concentration of the outlet water TP is between 0.11 and 0.41mg/L, and the average removal rate of the TP can reach about 40 percent. NH of river water purified by hanging basket system4 +The concentration of-N and TP is superior to the V-type standard in the quality standard of surface water environment (GB 3838-2002), so the device is very suitable for ecological restoration of a vertical hard revetment river channel and simultaneously improves the water quality of slightly polluted river water.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a three-dimensional wetland system for ecological restoration of river course stereoplasm revetment, its characterized in that includes the three-dimensional wetland plant groove, afforestation plant, wetland filler, water distribution pipeline, the automatic control system that fuse mutually with the peripheral river course stereoplasm revetment ecology, three-dimensional wetland plant groove is fixed in stereoplasm revetment facade, inside the wetland plant groove was filled to the wetland filler, afforestation plant plants on the wetland filler, three-dimensional wetland plant groove is connected to the water distribution pipeline, the automatic control system control water distribution pipeline subregion water distribution, three-dimensional wetland system is found by single three-dimensional wetland plant groove, or a plurality of three-dimensional wetland plant grooves are found with the picture arragement mode.
2. The stereoscopic wetland system for ecological restoration of the hard revetment of the river channel according to claim 1, wherein the stereoscopic wetland plant grooves are in a water-flow impact-resistant shape including a trapezoid body, and the stereoscopic wetland plant grooves are made of a waterproof and anticorrosive material.
3. The stereoscopic wetland system for ecological restoration of the hard revetment of the river channel according to claim 1, wherein the wetland filler is prepared by mixing a planting matrix and a water purification filler to prepare a mixed cultivation matrix, the planting matrix and the water purification matrix are filled in layers, the upper layer is the planting matrix, and the lower layer is the water purification matrix.
4. The stereoscopic wetland system for ecological restoration of the hard revetments of the riverway according to claim 1, wherein the greening plants comprise adsorption climbing type, winding climbing type and water impact resistant landscape plants.
5. The stereoscopic wetland system for ecological restoration of the hard revetment of the riverway according to claim 1, wherein the stereoscopic wetland planting tank adopts an upper wetland and a lower wetland which are connected in series, the upper wetland is connected with a water distribution pipeline and is uniformly distributed with water in different areas by an automatic control system, and a water inlet channel of the lower wetland is connected with a water outlet channel of the upper wetland.
6. The stereoscopic wetland system for ecological restoration of the hard revetment of the river channel according to claim 5, wherein the upper wetland is a primary wetland, and the lower wetland is a secondary wetland or a multi-stage wetland.
7. The stereoscopic wetland system for ecological restoration of the hard revetment of the riverway according to claim 5, which comprises a branch drainage pipe and a main drainage pipe, wherein the bottom of the stereoscopic wetland plant tank of the upper wetland is provided with a drainage hole, a water filtering net pad is arranged at the drainage hole, one end of the branch drainage pipe is connected with the drainage hole through the water filtering net pad, the other end of the branch drainage pipe is connected with the stereoscopic wetland plant tank of the lower wetland, and the drainage end of the lower wetland is connected with the main drainage pipe in a gathering manner.
8. The stereoscopic wetland system for ecological restoration of the hard revetment of the riverway according to claim 1, wherein the water distribution pipeline comprises a main water distribution pipe and branch water distribution pipes, the main water distribution pipe is connected with the branch water distribution pipes, the branch water distribution pipes are respectively connected with a plurality of stereoscopic wetland plant troughs, and the branch water distribution pipes are provided with water outlets on spaced water distribution points and supply water to the stereoscopic wetland plant troughs through the water outlets.
9. The three-dimensional wetland system for ecological restoration of the hard revetment of the riverway according to claim 1, wherein the automatic control system comprises a controller, an electric valve, a water conveying pipeline, a water storage tank and a river lift pump, the river lift pump is connected with the water inlet end of the water storage tank through the water conveying pipeline, the water outlet end of the water storage tank is connected with the water distribution pipeline, the controller is connected with and controls the electric valve, and the electric valve is arranged on the water distribution pipeline.
10. The stereoscopic wetland system for ecological restoration of the hard revetments of riverways according to claim 9, wherein the automatic control system comprises a solar power generation driving device which is connected with and drives an electric valve.
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| CN202110437327.5A CN113149226A (en) | 2021-04-22 | 2021-04-22 | Three-dimensional wetland system for ecological restoration of hard revetments of riverway |
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| CN202110437327.5A CN113149226A (en) | 2021-04-22 | 2021-04-22 | Three-dimensional wetland system for ecological restoration of hard revetments of riverway |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170107131A1 (en) * | 2015-04-28 | 2017-04-20 | Soochow University | Unpowered water purification system for a riverfront landscape constructed wetland |
| CN106906792A (en) * | 2017-04-10 | 2017-06-30 | 上海夕露环境科技有限公司 | Straw biological carbon ecology typed bank revetment and its construction method based on the bed mud utilization of resources |
| CN210656364U (en) * | 2019-08-15 | 2020-06-02 | 江苏聚慧科技有限公司 | Three-dimensional wetland for purifying water quality of urban river |
-
2021
- 2021-04-22 CN CN202110437327.5A patent/CN113149226A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170107131A1 (en) * | 2015-04-28 | 2017-04-20 | Soochow University | Unpowered water purification system for a riverfront landscape constructed wetland |
| CN106906792A (en) * | 2017-04-10 | 2017-06-30 | 上海夕露环境科技有限公司 | Straw biological carbon ecology typed bank revetment and its construction method based on the bed mud utilization of resources |
| CN210656364U (en) * | 2019-08-15 | 2020-06-02 | 江苏聚慧科技有限公司 | Three-dimensional wetland for purifying water quality of urban river |
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Application publication date: 20210723 |