CN110627313A - Novel rainwater filtration system suitable for sponge city - Google Patents
Novel rainwater filtration system suitable for sponge city Download PDFInfo
- Publication number
- CN110627313A CN110627313A CN201910801703.7A CN201910801703A CN110627313A CN 110627313 A CN110627313 A CN 110627313A CN 201910801703 A CN201910801703 A CN 201910801703A CN 110627313 A CN110627313 A CN 110627313A
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- water
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
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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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a novel rainwater filtering system suitable for a sponge city, which is arranged at the side edge of an urban road, wherein the uppermost layer of the novel rainwater filtering system suitable for the sponge city is a biological retention zone, a reservoir is arranged at the lower side of the biological retention zone, a planting soil layer is arranged at the lower side of the reservoir, a coarse sand layer is arranged at the lower side of the planting soil layer, a gravel layer is arranged at the lower side of the coarse sand layer, and a drainage system is arranged in the gravel layer; the drainage system comprises a water collecting filter plate and a drainage pipe; the filter that catchments is including the first filter, second filter and the third filter that connect gradually. Novel rainwater filtration system suitable for sponge city can realize cyclic utilization and the recycle of water through above-mentioned structure, but make full use of water resource avoids the urban waterlogging condition.
Description
Technical Field
The invention relates to a novel rainwater filtering system, in particular to a novel rainwater filtering system suitable for a sponge city.
Background
At present, a ' sponge city ' is a new generation of urban rainfall flood management concept, which means that the city has good ' elasticity ' in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can also be called as a ' hydro-elastic city ', and the ' sponge city ' absorbs water, stores water, seeps water and purifies water when raining, and releases ' and utilizes the stored water when needed.
Sponge city construction follows principles of ecological priority and the like, natural approaches and artificial measures are combined, accumulation, permeation and purification of rainwater in urban areas are realized to the maximum extent on the premise of ensuring urban drainage waterlogging prevention safety, and utilization of rainwater resources and ecological environment protection are promoted; the sponge city aims at constructing a vertical system of the city, so that the city can breathe freely, store and discharge water, and water is part of the city; the sponge city is used as a path for restoring the water ecology of the city, can realize the recycling and the reutilization of water, saves water and solves the increasingly serious ecological crisis of the water environment faced by more and more cities.
However, the existing sponge city design schemes cannot realize the real water recycling and recycling process, so that the water loss is large or waterlogging is easy to occur.
Therefore, there is a need to design a new rainwater filtering system suitable for sponge cities to overcome the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a novel rainwater filtering system suitable for sponge cities, which can realize the recycling and the reutilization of water, can fully utilize water resources and avoid the urban waterlogging.
The invention is realized by the following steps:
the invention provides a novel rainwater filtering system suitable for a sponge city, which is arranged at the side edge of an urban road, wherein the uppermost layer of the novel rainwater filtering system suitable for the sponge city is a biological retention zone, a reservoir is arranged at the lower side of the biological retention zone, a planting soil layer is arranged at the lower side of the reservoir, a coarse sand layer is arranged at the lower side of the planting soil layer, a gravel layer is arranged at the lower side of the coarse sand layer, and a drainage system is arranged in the gravel layer;
the drainage system comprises a water collecting filter plate and a drainage pipe; the water collection filter plate comprises a first filter plate, a second filter plate and a third filter plate which are sequentially connected, the second filter plate is horizontally arranged, and an included angle between the first filter plate and the second filter plate is an obtuse angle; the first filter plate and the third filter plate are symmetrically arranged;
the first filter plate and the third filter plate have the same structure and respectively comprise a coating cloth layer, a carbon fiber cloth layer, a screen plate layer and a steel plate layer which are sequentially arranged from top to bottom;
the second filter plate comprises a coating cloth layer, a carbon fiber cloth layer and a mesh plate layer which are sequentially arranged from top to bottom;
the upper side of the drain pipe is provided with an opening, the tail end of the steel plate layer of the first filter plate is connected with one side of the opening, the tail end of the steel plate layer of the third filter plate is connected with the other side of the opening, and the second filter plate is located right above the opening.
Furthermore, the both sides of novel rainwater filtration system suitable for sponge city are provided with the material of mating formation of permeating water respectively, the material of mating formation of permeating water is located the outside of biological detention area, cistern, planting soil layer, coarse sand layer, gravel layer.
Further, an artificial packing layer is arranged between the planting soil layer and the coarse sand layer.
Furthermore, a plurality of round pipes are arranged in the drain pipe; the upper end of the round pipe is abutted to the lower side of the second filter plate, and the lower end of the round pipe is abutted to the lower side of the drain pipe.
Furthermore, a plurality of through holes are uniformly formed in the pipe wall of the circular pipe.
Furthermore, a plurality of water guide pipes are arranged in the gravel layer and are positioned at the lower side of the first filter plate or the third filter plate.
Furthermore, the horizontal width of the water collecting and filtering plate is more than three quarters of the horizontal width of the gravel layer and less than the horizontal width of the gravel layer.
Further, the thickness of the coarse sand layer is larger than that of the gravel layer, and the thickness of the gravel layer is larger than that of the planting soil layer.
The invention has the following beneficial effects:
novel rainwater filtration system suitable for sponge city realizes collection, the utilization to the rainwater through biological detention area, cistern, planting soil layer, and the rainwater passes through the infiltration of coarse sand layer, enters into the gravel layer, and by drainage system collects and discharges, utilizes inside infiltration.
Novel rainwater filtration system suitable for sponge city passes through multilayer structure and permeates, filters the rainwater, and the water that finally enters into the gravel layer passes through drainage system collects, utilizes, can realize cyclic utilization and the regeneration and utilize of water, but make full use of water resource avoids the urban waterlogging condition.
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, and 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 these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a novel rainwater filtering system suitable for a sponge city according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention provides a novel rainwater filtering system suitable for a sponge city, which is arranged on the side of an urban road and used for collecting and utilizing rainwater.
As shown in fig. 1, the uppermost layer of the novel rainwater filtering system suitable for the sponge city is a bioretention zone 1, the lower side of the bioretention zone 1 is provided with a reservoir 2, and the lower side of the reservoir 2 is provided with a planting soil layer 3. The biological detention zone 1 is arranged, various plants are planted, and the biological detention zone can be used as a road landscape. Reservoir 2 and planting soil layer 3 all are for bioretention area 1 usefulness, and reservoir 2 can carry out the retaining, and planting soil layer 3 is for the growth of plant.
As shown in figure 1, a coarse sand layer 5 is arranged on the lower side of the planting soil layer 3, so that rainwater can permeate conveniently, and meanwhile, a filtering effect is achieved. The lower side of the coarse sand layer 5 is provided with a gravel layer 6, and the gravel layer 6 is used for collecting the infiltrated rainwater. In the preferred embodiment, an artificial packing layer 4 is disposed between the planting soil layer 3 and the coarse sand layer 5, and the artificial packing layer 4 can be ceramsite or zeolite, and can perform preliminary filtration on the permeated water, so that relatively pure water can be collected finally. Wherein, in order to enhance the water seepage effect and the filtering effect, the thickness of the coarse sand layer 5 is larger than that of the gravel layer 6, and the thickness of the gravel layer 6 is larger than that of the planting soil layer 3; the coarse sand layer 5 can ensure that the rainwater is relatively pure after infiltration and filtration.
As shown in fig. 1, further, water permeable paving materials 7 are respectively arranged on two sides of the novel rainwater filtering system suitable for the sponge city, and the water permeable paving materials 7 are positioned on the outer sides of the bioretention belt 1, the water storage tank 2, the planting soil layer 3, the coarse sand layer 5 and the gravel layer 6. The permeable paving material 7 is used for fixing and supporting the structures of each layer and enabling water inside the soil body to permeate.
As shown in fig. 1, a drainage system is arranged in the gravel layer 6 and used for recovering and utilizing the seepage water entering the gravel layer 6, and the drainage system comprises a water collecting filter plate and a drainage pipe 84; the water collecting filter plate comprises a first filter plate 81, a second filter plate 82 and a third filter plate 83 which are connected in sequence, the second filter plate 82 is horizontally arranged, and an included angle between the first filter plate 81 and the second filter plate 82 is an obtuse angle; the included angle is 145-170 degrees; the first filter plate 81 and the third filter plate 83 are symmetrically disposed. The first filter plate 81, the second filter plate 82 and the third filter plate 83 form a structure similar to a water collecting channel, and the opening is arranged upwards.
Further, as shown in fig. 1, the horizontal width of the water collecting filter plate is more than three-quarters of the horizontal width of the gravel layer 6 and less than the horizontal width of the gravel layer 6, so that the water collecting filter plate can collect most of the permeate water and discharge the permeate water through the water discharge pipe 84.
As shown in fig. 1, the first filter plate 81 and the third filter plate 83 have the same structure, and each of the first filter plate and the third filter plate includes a coating cloth layer, a carbon fiber cloth layer, a mesh plate layer, and a steel plate layer, which are sequentially disposed from top to bottom. The water body can be preliminarily filtered through the coating cloth layer and the carbon fiber cloth layer, and impurities and the like in the water body are filtered; the steel plate layer is of a bottom layer structure and plays a role in guiding and supporting water collected in the screen plate layer.
As shown in fig. 1, the second filter plate 82 includes a coating cloth layer, a carbon fiber cloth layer, and a mesh plate layer, which are sequentially disposed from top to bottom; the water body can be preliminarily filtered through the coating cloth layer and the carbon fiber cloth layer, impurities and the like in the water body are filtered, and water enters the drain pipe 84 on the lower side after passing through the screen plate layer.
The upper side of the drain pipe 84 is provided with an opening, the end of the steel plate layer of the first filter plate 81 is connected with one side of the opening, the end of the steel plate layer of the third filter plate 83 is connected with the other side of the opening, and the second filter plate 82 is positioned right above the opening. The water collected by the first filter plate 81 and the third filter plate 83 flows obliquely downward into the opening and enters the drain pipe 84, and the water filtered by the second filter plate 82 directly falls into the drain pipe 84.
As shown in fig. 1, the cross section of the drain pipe 84 is rectangular, and the upper end of the drain pipe 84 is provided with the opening. A plurality of round pipes 85 are arranged in the drain pipe 84, and the round pipes 85 are arranged in parallel with the central axis of the drain pipe 84, so that the overall strength of the drain pipe 84 is enhanced, and the service life of the drain pipe is prolonged. The upper end of the circular tube 85 abuts against the lower side of the second filter plate 82, and the lower end of the circular tube 85 abuts against the lower side of the drain tube 84. The pipe wall of the circular pipe 85 is uniformly provided with a plurality of through holes, so that water can enter the circular pipe 85 without affecting the water guide performance of the drain pipe 84. In the preferred embodiment, the number of the circular tubes 85 is four, two adjacent circular tubes 85 are abutted against each other, and the four circular tubes 85 are located at the same horizontal height.
The drainage system filters the collected water through the first filter plate 81 and the third filter plate 83, and then the collected water is collected on the second filter plate 82 through the water guide function of the first filter plate 81 and the third filter plate 83, and is guided into the drainage pipe 84 for discharge, collection and utilization. By providing a plurality of round tubes 85, the strength of the drain tube 84 can be enhanced, and the service life thereof can be prolonged.
Further, a plurality of water conduits 9 are arranged in the gravel layer 6, water guide through holes are arranged on the pipe wall of each water conduit 9, and the water conduits are located on the lower side of the first filter plate 81 or the third filter plate 83. The water guide pipe 9 is used for further guiding and discharging the water in the gravel layer 6.
To sum up, novel rainwater filtration system suitable for sponge city realizes the collection, the utilization to the rainwater through biological detention area 1, cistern 2, planting soil layer 3, and the rainwater passes through artificial packing layer 4, 5 infiltration on coarse sand layer, enters into gravel layer 6, and by drainage system filters, collects and discharges, utilizes inside infiltration.
Novel rainwater filtration system suitable for sponge city passes through multilayer structure and permeates, filters the rainwater, and the water that finally enters into gravel layer 6 passes through drainage system filters, collects, utilizes, can realize cyclic utilization and the regeneration of water, but make full use of water resource avoids the urban emergence waterlogging condition
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A novel rainwater filtering system suitable for sponge cities is characterized in that the novel rainwater filtering system suitable for sponge cities is arranged on the side edge of an urban road, the uppermost layer of the novel rainwater filtering system is a bioretention zone, a reservoir is arranged on the lower side of the bioretention zone, a planting soil layer is arranged on the lower side of the reservoir, a coarse sand layer is arranged on the lower side of the planting soil layer, a gravel layer is arranged on the lower side of the coarse sand layer, and a drainage system is arranged in the gravel layer;
the drainage system comprises a water collecting filter plate and a drainage pipe; the water collection filter plate comprises a first filter plate, a second filter plate and a third filter plate which are sequentially connected, the second filter plate is horizontally arranged, and an included angle between the first filter plate and the second filter plate is an obtuse angle; the first filter plate and the third filter plate are symmetrically arranged;
the first filter plate and the third filter plate have the same structure and respectively comprise a coating cloth layer, a carbon fiber cloth layer, a screen plate layer and a steel plate layer which are sequentially arranged from top to bottom;
the second filter plate comprises a coating cloth layer, a carbon fiber cloth layer and a mesh plate layer which are sequentially arranged from top to bottom;
the upper side of the drain pipe is provided with an opening, the tail end of the steel plate layer of the first filter plate is connected with one side of the opening, the tail end of the steel plate layer of the third filter plate is connected with the other side of the opening, and the second filter plate is located right above the opening.
2. The new rainwater filtration system for sponge cities as claimed in claim 1 wherein: the novel rainwater filtration system suitable for the sponge city both sides are provided with the material of mating formation of permeating water respectively, the material of mating formation of permeating water is located the outside of biological detention area, cistern, planting soil layer, coarse sand layer, gravel layer.
3. A new rainwater filtration system adapted for use in sponge cities as claimed in claim 1 or claim 2 wherein: an artificial packing layer is arranged between the planting soil layer and the coarse sand layer.
4. The new rainwater filtration system for sponge cities as claimed in claim 1 wherein: a plurality of round pipes are arranged in the drain pipe; the upper end of the round pipe is abutted to the lower side of the second filter plate, and the lower end of the round pipe is abutted to the lower side of the drain pipe.
5. The new rainwater filtration system for sponge cities as claimed in claim 4 wherein: and the pipe wall of the round pipe is uniformly provided with a plurality of through holes.
6. The new rainwater filtration system for sponge cities as claimed in claim 1 wherein: a plurality of water guide pipes are arranged in the gravel layer and are positioned at the lower side of the first filter plate or the third filter plate.
7. The new rainwater filtration system for sponge cities as claimed in claim 1 wherein: the horizontal width of the water collecting and filtering plate is more than three quarters of the horizontal width of the gravel layer and less than the horizontal width of the gravel layer.
8. The new rainwater filtration system for sponge cities as claimed in claim 1 wherein: the thickness of the coarse sand layer is larger than that of the gravel layer, and the thickness of the gravel layer is larger than that of the planting soil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801703.7A CN110627313A (en) | 2019-08-28 | 2019-08-28 | Novel rainwater filtration system suitable for sponge city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801703.7A CN110627313A (en) | 2019-08-28 | 2019-08-28 | Novel rainwater filtration system suitable for sponge city |
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| Publication Number | Publication Date |
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| CN110627313A true CN110627313A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910801703.7A Pending CN110627313A (en) | 2019-08-28 | 2019-08-28 | Novel rainwater filtration system suitable for sponge city |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648437A (en) * | 2020-07-07 | 2020-09-11 | 汇绿园林建设发展有限公司 | Rainwater secondary use formula rainwater garden suitable for sponge city construction |
| CN112031141A (en) * | 2020-08-27 | 2020-12-04 | 佛山市顺德区顺茵绿化设计工程有限公司 | Filtration formula environmental protection water storage device for afforestation |
| CN118327116A (en) * | 2024-03-28 | 2024-07-12 | 智泉环保科技(苏州)有限公司 | Rainwater garden structure |
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| CN106592731A (en) * | 2016-11-18 | 2017-04-26 | 江苏花王园艺股份有限公司 | Biological purifying retention band used for municipal road of sponge city |
| CN207484629U (en) * | 2018-01-11 | 2018-06-12 | 上海墨刻景观工程有限公司 | A kind of sponge urban ecology grass planting ditch |
| CN207727376U (en) * | 2017-09-01 | 2018-08-14 | 沈阳建筑大学 | A kind of urban road of multimode rainwater-collecting purification and self-restraint greenbelt |
| CN208357131U (en) * | 2018-04-10 | 2019-01-11 | 中建一局集团第五建筑有限公司 | Fountain system in sink wetland |
| CN110093835A (en) * | 2019-06-13 | 2019-08-06 | 成都建工路桥建设有限公司 | A kind of pavement permeable pavement combines recessed greenery patches sponge urban structure |
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2019
- 2019-08-28 CN CN201910801703.7A patent/CN110627313A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592731A (en) * | 2016-11-18 | 2017-04-26 | 江苏花王园艺股份有限公司 | Biological purifying retention band used for municipal road of sponge city |
| CN207727376U (en) * | 2017-09-01 | 2018-08-14 | 沈阳建筑大学 | A kind of urban road of multimode rainwater-collecting purification and self-restraint greenbelt |
| CN207484629U (en) * | 2018-01-11 | 2018-06-12 | 上海墨刻景观工程有限公司 | A kind of sponge urban ecology grass planting ditch |
| CN208357131U (en) * | 2018-04-10 | 2019-01-11 | 中建一局集团第五建筑有限公司 | Fountain system in sink wetland |
| CN110093835A (en) * | 2019-06-13 | 2019-08-06 | 成都建工路桥建设有限公司 | A kind of pavement permeable pavement combines recessed greenery patches sponge urban structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648437A (en) * | 2020-07-07 | 2020-09-11 | 汇绿园林建设发展有限公司 | Rainwater secondary use formula rainwater garden suitable for sponge city construction |
| CN111648437B (en) * | 2020-07-07 | 2021-04-13 | 汇绿园林建设发展有限公司 | Rainwater secondary use formula rainwater garden suitable for sponge city construction |
| CN112031141A (en) * | 2020-08-27 | 2020-12-04 | 佛山市顺德区顺茵绿化设计工程有限公司 | Filtration formula environmental protection water storage device for afforestation |
| CN118327116A (en) * | 2024-03-28 | 2024-07-12 | 智泉环保科技(苏州)有限公司 | Rainwater garden structure |
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Application publication date: 20191231 |
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