CN110725382A - Ground rainwater flow guide system for sponge city construction and application method - Google Patents
Ground rainwater flow guide system for sponge city construction and application method Download PDFInfo
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- 230000035515 penetration Effects 0.000 claims description 16
- 238000000746 purification Methods 0.000 claims description 14
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- 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
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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
- C02F2103/001—Runoff or storm water
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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Abstract
The invention discloses a ground rainwater flow guide system for sponge city construction and an application method thereof, wherein the ground rainwater flow guide system comprises a flow guide device and an underground release storage layer, the flow guide device is directly vertically connected with the underground release storage layer from top to bottom, the flow guide device comprises a vertical hollow flow guide pipe, a surface cover is arranged above the flow guide pipe, the surface cover is a water inlet of the flow guide pipe, a sewage interception filter material is also arranged at the joint of the flow guide pipe and the surface cover, a bottom plate is arranged below the flow guide pipe, and the bottom plate is used as a water outlet of the flow; at least one filter layer is arranged in the vertical hollow part of the draft tube. The system can solve the problems that rainwater can be naturally collected and utilized in sponge city construction, the engineering quantity is small, the construction is flexible, the system is not limited by terrain and original design, the rainwater can be absorbed on the spot and supplied on the spot, no external force is needed, daily life of residents in a community is influenced to the minimum extent during construction, the service life is long, the maintenance frequency is low, the maintenance cost is low, secondary pollution and other incidental environmental influences are avoided, and urban waterlogging and rainwater loss are effectively relieved.
Description
Technical Field
The invention belongs to the technical field of urban rainwater treatment, and particularly relates to an improvement of a ground rainwater flow guide device structure for sponge urban construction.
Background
The problems of insufficient water resources, frequent flooding disasters and water environment deterioration are more and more serious worldwide. In the current rapid development and construction of Chinese cities, original vegetation and soil are replaced by impervious ground, original natural water circulation is damaged, a large amount of rainwater (the largest fresh water resource) is lost, the supply of underground water obtained from rainfall is reduced year by year, and the underground water is exhausted. The promotion of urbanization process causes the ground sclerosis, also makes the water content of soil reduce, and evaporation capacity decline air is dry more and more, aggravates the heat island effect for water ecological environment worsens day by day, for example regional rainstorm festival such as town road, public service area, old district, outdoor venue easily produces ponding, simultaneously because old regional pipe network is old, the rainwater leads to the formation of waterlogging through the position to regional rainwater pipe network very big pressure, leads to. The problem of the water accumulation in the residential area is well known for a long time, large-area water accumulation on the road surface can be caused when rainstorm occurs, and sometimes the water accumulation on the road surface even flows backwards into the commercial shops of the residential area, so that great influence is caused on the traveling traffic and property safety of residents in the residential area. In recent years, the traditional sponge transformation of water storage modules, sunken greenbelts, permeable ponds and the like is concerned and built quickly, the traditional mode has many considerations, the function is single and is limited by conditions in field areas and pavements, the transformation is complex, the transformation engineering quantity and difficulty are high, secondary pollution is easily caused in the storage and release process, the equipment is various, the cost performance is low, and the subsequent maintenance cost is high.
The sponge city enables the city to have good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like a sponge, can absorb, store, seep water and purify water in the rainy period, and releases the stored water when in need. Reduce rainwater surface runoff from the source, both solved city "see the sea" problem, solved whole ecological environment problem again.
However, most sponge projects in the existing sponge city construction adopt a siphon principle, the project amount is large, the site construction area is large and complex, particularly, the project amount is limited by the topography and the original design, the project amount can only be absorbed and supplemented on site, the maintenance cost of the rainwater diversion device is high, the maintenance frequency is high, secondary pollution and other additional environmental influences (such as secondary pollution of collected rainwater, mosquito breeding on open water surface and the like) are easily caused, and related problems are solved.
Disclosure of Invention
The invention aims to provide a ground rainwater flow guiding system for sponge city construction and an application method thereof, and the system can solve the problems that rainwater in the sponge city construction can be naturally collected and utilized, the engineering quantity is small, the construction is flexible, the system is not limited by the terrain and the original design, the rainwater can be absorbed on the spot and supplied on the spot, external force is not needed, the daily life of residents in a residential area is influenced to the minimum extent during construction, the service life is long, the maintenance frequency is low, the maintenance cost is low, and secondary pollution and other additional environmental influences (such as collected rainwater secondary pollution, mosquito breeding on open water surface and the like) are avoided, so that urban waterlogging and rainwater (fresh water) loss are effectively relieved.
In order to achieve the purpose, the invention adopts the following technical scheme that the ground rainwater flow guiding system for sponge city construction comprises a flow guiding device and an underground release storage layer, wherein the flow guiding device is directly vertically connected with the underground release storage layer up and down, namely, the connection mode of a non-siphon and non-siphon principle, the flow guiding device comprises a vertical hollow flow guiding pipe, a surface cover is arranged above the flow guiding pipe, the surface cover is a water inlet of the flow guiding pipe, the flow guiding pipe and the surface cover are connected through an embedded connection or a sleeve cover connection or a detachable welding-free buckle connection, a pollutant intercepting filter material is further arranged at the connection part of the flow guiding pipe and the surface cover, a bottom plate is arranged below the flow guiding pipe, the bottom plate is used as; at least one filter layer is arranged in the vertical hollow part of the draft tube.
Preferably, the bottom plate below the draft tube is integrally formed with the draft tube, or the bottom plate is connected with the tube wall below the draft tube in a buckling manner; or the bottom plate is welded and connected with the pipe wall below the flow guide pipe.
Preferably, the bottom plate is a horizontal straight plate or a circular arc-shaped curved plate.
Furthermore, a layer of permeation antifreezing material layer is arranged in the vertical hollow part of the flow guide pipe, a bottom plate is arranged below the permeation antifreezing material layer, and the bottom plate is directly vertically connected with the underground release layer below the bottom plate.
Furthermore, a penetration antifreezing material layer and a biological filtration and purification material layer are sequentially arranged in the vertical hollow of the flow guide pipe from top to bottom, a bottom plate is arranged below the biological filtration and purification material layer, and the bottom plate is directly vertically connected with an underground release storage layer below the bottom plate from top to bottom.
Furthermore, a penetration antifreezing material layer, a biological filtration and purification material layer and a biological nutrition material layer are sequentially arranged in the vertical hollow of the flow guide pipe from top to bottom, a bottom plate is arranged below the biological nutrition material layer, and the bottom plate is directly vertically connected with an underground release storage layer below the bottom plate from top to bottom.
Furthermore, a plurality of flow guide holes are also formed in the tube wall of the flow guide tube, and the flow guide holes are formed in the tube wall above the flow guide tube and/or in the tube wall below the flow guide tube.
Preferably, the flow guide holes are in the shape of vertical bars or round holes and are uniformly distributed on the pipe wall in a circumferential mode.
Preferably, the peripheral dimension of the surface cover is smaller than that of the draft tube, and the surface cover is embedded at the water inlet of the draft tube.
Preferably, the peripheral dimension of the surface cover is larger than that of the draft tube, and the surface cover is covered at the water inlet of the draft tube.
Preferably, the peripheral dimension of face lid be greater than the peripheral dimension of honeycomb duct, the cross-section of face lid is trapezoidal form, the inside buckle or the draw-in groove that is equipped with of face lid, be equipped with the draw-in groove or the buckle of adaptation on the pipe wall of honeycomb duct, face lid and honeycomb duct are connected through detachable solderless buckle.
The invention relates to an application method of a ground rainwater diversion system for sponge city construction, which is characterized in that the ground rainwater diversion system is arranged in a concave rainwater detention area and at the edge of the rainwater detention area, a surface cover and a diversion pipe are positioned below the concave detention area or a green land, the exposed surface of the surface cover can be filled with surface layer cobbles, the periphery of the surface cover is filled with cobbles and a sand layer for enlarging diversion area and penetration area, the cobbles and the sand layer have filtering function and penetration function, and when water flow is filtered in the initial stage and then passes through a biological filtering and purifying material of the ground rainwater diversion device, the water is stored through a storage and release layer to achieve the collecting effect and then penetrates underground; if the ground rainwater diversion system is arranged above the green land, biological nutrient materials can be arranged in the diversion pipe to adjust the water quality and meet the growth requirement of plants so as to provide nutrient substances for the plants.
The invention has the beneficial effects that:
compared with the prior art, the invention has the following beneficial effects:
(1) rainwater can be instantly stored in the storage and release layer through the rainwater flow guiding device in rainfall, and the rainwater is not limited by surface hardening and permeates underground;
(2) the rainwater can be purified and then the underground water level can be maintained, so that the underground water level can be supplemented, and water source maintenance, hydrological condition improvement and regional water circulation regulation can be realized;
(3) the invention can instantly guide the rainwater to the position below the surface layer without being limited by surface hardening, thus directly reducing the runoff of the surface, playing a remarkable role in peak clipping and storage regulation and reducing the problem of waterlogging;
(4) the construction process is simple, is not restricted by site conditions, does not need to expand the rainwater pipe network of the cell, directly improves the buffering capacity of the cell to rainwater in the peak period, and is flexible to use;
(5) the nutrient is arranged below the green land and can provide water and nutrient substances for plants to meet the growth requirement of the plants. The frequency of greening irrigation is reduced, and the greening cost is saved for greening departments;
(6) the urban rainwater management concept of 'mainly discharging' in traditional sponge urban construction is broken through, and rainwater can be stored, collected and utilized through a rainwater diversion system in a rainwater high-rise period;
(7) the penetration antifreezing material can be used in severe cold areas, so that the service life of the penetration antifreezing material is prolonged, and the use area is enlarged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fifth embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a sixth embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a seventh embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an eighth embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a ninth embodiment of the present invention;
1-a flow guide pipe, 2-a surface cover, 3-a sewage interception filter material, 4-a bottom plate, 5-a penetration antifreezing material layer, 6-a biological filtration and purification material layer, 7-a biological nutrition material layer, 8-a flow guide hole and 9-an underground accumulation and release layer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and the described embodiments are only some embodiments, not all embodiments, of the present invention. 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.
In the first embodiment, as shown in fig. 1, a ground rainwater diversion system for sponge city construction includes a diversion device and an underground release storage layer, the diversion device is directly vertically connected with the underground release storage layer up and down, i.e., a connection mode of a non-siphon and non-siphon principle, the diversion device includes a vertical hollow diversion pipe, a surface cover is arranged above the diversion pipe, the peripheral size of the surface cover is smaller than that of the diversion pipe, the surface cover is embedded in a water inlet of the diversion pipe to form a water inlet of the diversion pipe, a sewage interception filter material is further arranged at the connection position of the diversion pipe and the surface cover, a bottom plate is arranged below the diversion pipe, the bottom plate is a horizontal straight plate, the bottom plate is used as a water outlet of the diversion pipe, a plurality of water guide ports are arranged on the bottom plate, and; a layer of permeation antifreezing material layer is arranged in the vertical hollow part of the flow guide pipe; the surface cover can filter large-particle impurities in initial rainwater and prevent injury caused by treading actions of pedestrians, and the infiltration anti-freezing material layer is mainly used in severe cold areas.
The invention can be arranged below a roadside road, below a green belt and below a road section with serious accumulated water, and when the blocking surface cover and the sewage interception filter material are blocked, the blocking surface cover can be directly opened for cleaning, and the sewage interception filter material can be replaced.
In the second embodiment, as shown in fig. 2, the other steps are the same as those in the first embodiment, and are not repeated, but only a penetration antifreezing material layer and a biological filtration and purification material layer are sequentially arranged in the vertical hollow of the draft tube from top to bottom, a bottom plate is arranged below the biological filtration and purification material layer, and the bottom plate is directly vertically connected with an underground accumulation and release layer below the bottom plate; the biological filter layer purification material effectively purifies other impurities in rainwater and then permeates into the underground storage and release layer without pollution.
In the third embodiment, as shown in fig. 3, the other steps are the same as those in the first embodiment, and are not repeated, but only a penetration antifreezing material layer, a biological filtration and purification material layer and a biological nutrition material layer are sequentially arranged in the vertical hollow of the draft tube from top to bottom, a bottom plate is arranged below the biological nutrition material layer, and the bottom plate is directly vertically connected with an underground accumulation and release layer below the bottom plate; the biological filter layer purification material effectively purifies other impurities in rainwater, then the purified impurities are not polluted and permeate to the underground, and the rainwater diversion device arranged under the green land is internally provided with biological nutrient materials which can regulate water quality and supplement nutrients required by plant growth.
The embodiment four is as shown in fig. 4, the ground rainwater diversion system for sponge city construction comprises a diversion device and an underground release storage layer, wherein the diversion device is directly vertically connected with the underground release storage layer up and down, namely, the connection mode of a non-siphon and non-siphon principle is adopted, the diversion device comprises a vertical hollow diversion pipe, a surface cover is arranged above the diversion pipe, the peripheral size of the surface cover is larger than that of the diversion pipe, the surface cover is sleeved on a water inlet of the diversion pipe to form a water inlet of the diversion pipe, a sewage interception filter material is further arranged at the connection part of the diversion pipe and the surface cover, a bottom plate is arranged below the diversion pipe, the bottom plate is a circular arc-shaped curved plate and is used as a water outlet of the diversion pipe, a plurality of water guide ports are arranged on the; the pipe wall below the flow guide pipe is also provided with a plurality of flow guide holes, the flow guide holes are in a vertical strip shape, the flow guide holes are uniformly distributed on the pipe wall below the flow guide pipe in a circumferential mode, and a layer of permeation anti-freezing material layer is arranged in the vertical hollow part of the flow guide pipe; the surface cover can filter large-particle impurities in initial rainwater and prevent injury caused by treading actions of pedestrians, and the infiltration anti-freezing material layer is mainly used in severe cold areas.
The invention can be arranged below a roadside road, below a green belt and below a road section with serious accumulated water, and when the blocking surface cover and the sewage interception filter material are blocked, the blocking surface cover can be directly opened for cleaning, and the sewage interception filter material can be replaced.
In the fifth embodiment, as shown in fig. 5, the other steps are the same as the fourth embodiment, but are not repeated, and only a penetration antifreezing material layer and a biological filtration and purification material layer are sequentially arranged in the vertical hollow of the draft tube from top to bottom, a bottom plate is arranged below the biological filtration and purification material layer, and the bottom plate is vertically embedded in the underground accumulation and release layer.
In a sixth embodiment, as shown in fig. 6, the other embodiments are the same as the fourth embodiment, but are not repeated, but only the peripheral dimension of the surface cover is greater than that of the flow guide pipe, the surface cover is a circular cover, a fastener or a clamping groove is arranged inside the surface cover, a clamping groove or a fastener is arranged on the pipe wall of the flow guide pipe, and the surface cover is connected with the flow guide pipe through a detachable welding-free fastener.
A seventh embodiment is as shown in fig. 7, the other embodiments are the same as the sixth embodiment, and are not repeated, but only the vertical hollow of the draft tube is sequentially provided with a penetration antifreezing material layer, a biological filtration and purification material layer and a biological nutrition material layer from top to bottom, a bottom plate is arranged below the biological nutrition material layer, and the bottom plate is vertically embedded into the underground accumulation and release layer.
An eighth embodiment, as shown in fig. 8, the other structures are the same as the fourth embodiment, but are not repeated, but only the peripheral dimension of the surface cover is larger than that of the flow guide tube, the cross section of the surface cover is trapezoidal, a buckle or a clamping groove is arranged inside the surface cover, a clamping groove or a buckle which is matched with the wall of the flow guide tube is arranged on the wall of the flow guide tube, and the surface cover is connected with the flow guide tube through a detachable welding-free buckle;
a plurality of flow guide holes are formed in the pipe walls above and below the flow guide pipe;
the vertical cavity of honeycomb duct is equipped with infiltration antifreezing material layer, biological filtration purifying material layer from the top down in proper order, and the below on biological filtration purifying material layer is the bottom plate, and the bottom plate is embedded in the underground release layer of holding vertically.
The ninth embodiment is the same as the sixth embodiment except that a penetration antifreezing material layer, a biological filtration and purification material layer and a biological nutrition material layer are sequentially arranged in the vertical hollow of the draft tube from top to bottom, a bottom plate is arranged below the biological nutrition material layer, and the bottom plate is vertically embedded into the underground accumulation and release layer, as shown in fig. 9.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The ground rainwater flow guide system for sponge city construction is characterized by comprising a flow guide device and an underground release storage layer, wherein the flow guide device is directly vertically connected with the underground release storage layer from top to bottom, namely, the connection mode of a non-siphon and non-siphon principle is adopted, the flow guide device comprises a vertical hollow flow guide pipe, a surface cover is arranged above the flow guide pipe and is a water inlet of the flow guide pipe, the flow guide pipe is connected with the surface cover through an embedded connection or a sleeve cover connection or a detachable welding-free buckle connection, a pollutant-intercepting filter material is further arranged at the connection part of the flow guide pipe and the surface cover, a bottom plate is arranged below the flow guide pipe and is used as a water outlet of the flow; at least one filter layer is arranged in the vertical hollow part of the draft tube.
2. The system of claim 1, wherein the bottom plate below the draft tube is integrally formed with the draft tube, or the bottom plate is snap-fit to the wall of the tube below the draft tube; or the bottom plate is welded with the pipe wall below the flow guide pipe; the bottom plate is a horizontal straight plate or a circular arc-shaped curved plate.
3. The system of claim 1, wherein the vertical hollow of the draft tube is provided with a layer of permeable antifreeze material, a bottom plate is arranged below the layer of permeable antifreeze material, and the bottom plate is directly vertically connected with the underground accumulation and release layer below the bottom plate.
4. The system of claim 1, wherein the vertical hollow of the draft tube is sequentially provided with a penetration antifreezing material layer and a biological filtering and purifying material layer from top to bottom, a bottom plate is arranged below the biological filtering and purifying material layer, and the bottom plate is directly vertically connected with the underground accumulation and release layer below the bottom plate from top to bottom.
5. The system of claim 1, wherein the vertical hollow of the draft tube is sequentially provided with a penetration antifreezing material layer, a biological filtration and purification material layer and a biological nutrition material layer from top to bottom, a bottom plate is arranged below the biological nutrition material layer, and the bottom plate is directly vertically connected with an underground accumulation and release layer below the bottom plate from top to bottom.
6. The system of claim 1, wherein the wall of the flow guide pipe is further provided with a plurality of flow guide holes, and the flow guide holes are arranged on the wall of the flow guide pipe above and/or below the flow guide pipe.
7. The system of claim 6, wherein the flow-guiding holes are vertical bars or circular holes, and are circumferentially and uniformly distributed on the tube wall.
8. The system of claim 1, wherein if the outer circumference of the cover is smaller than the outer circumference of the flow guide pipe, the cover is embedded at the water inlet of the flow guide pipe; if the peripheral size of the surface cover is larger than that of the guide pipe, the surface cover is sleeved and covered at the water inlet of the guide pipe.
9. The system of claim 1, wherein the outer circumference of the surface cover is larger than the outer circumference of the flow guide pipe, the cross section of the surface cover is trapezoidal, the surface cover is internally provided with a buckle or a clamping groove, the wall of the flow guide pipe is provided with a matched clamping groove or a matched buckle, and the surface cover and the flow guide pipe are connected through a detachable welding-free buckle.
10. The method for applying the ground rainwater diversion system for sponge city construction according to claim 1, wherein the ground rainwater diversion system is arranged in the concave rainwater retention area and at the edge of the rainwater retention area, the surface cover and the diversion pipe are positioned below the concave retention area or the green land, the exposed surface of the surface cover can be filled with surface layer cobbles, the cobbles and the sand layer are used for filling the periphery of the concave retention area or the green land to enlarge the diversion area and the penetration area, the cobbles and the sand layer have the filtering function and the penetration function, and when water flow passes through the initial filtering and then passes through the biological filtering and purifying material of the ground rainwater diversion device, the water is stored through the storage and release layer to achieve the collecting function and then penetrates to the ground; if the ground rainwater diversion system is arranged above the green land, biological nutrient materials can be arranged in the diversion pipe to adjust the water quality and meet the growth requirement of plants so as to provide nutrient substances for the plants.
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| CN201810779160.9A CN110725382A (en) | 2018-07-16 | 2018-07-16 | Ground rainwater flow guide system for sponge city construction and application method |
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| CN201810779160.9A CN110725382A (en) | 2018-07-16 | 2018-07-16 | Ground rainwater flow guide system for sponge city construction and application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111296232A (en) * | 2020-03-19 | 2020-06-19 | 上海爱雨环境科技有限公司 | Natural ecological circulating irrigation system for viaduct |
| CN112337162A (en) * | 2020-10-28 | 2021-02-09 | 四川大学 | Rainwater filtering device and road gutter inlet |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19860860A1 (en) * | 1998-12-31 | 2000-07-13 | Rolf Schmidt | Rainwater filter has hydraulic arrangement to filter preventing overload and dispensing with filter pumps |
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| CN206784544U (en) * | 2017-06-05 | 2017-12-22 | 深圳文科园林股份有限公司 | A kind of sponge city water guider |
| CN208792456U (en) * | 2018-07-16 | 2019-04-26 | 沈阳天吴环保科技有限公司 | Ground rainwater guiding device for sponge urban construction |
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| DE19860860A1 (en) * | 1998-12-31 | 2000-07-13 | Rolf Schmidt | Rainwater filter has hydraulic arrangement to filter preventing overload and dispensing with filter pumps |
| JP2009138519A (en) * | 2008-12-25 | 2009-06-25 | Eizo Tomita | Rainwater underground treating apparatus |
| CN205875342U (en) * | 2016-04-29 | 2017-01-11 | 四川牧雨环保科技有限公司 | Urban rainwater filters storage leakage system |
| CN205839947U (en) * | 2016-07-29 | 2016-12-28 | 天津沃佰艾斯科技有限公司 | A kind of system for reclaiming rainwater of sponge urban construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111296232A (en) * | 2020-03-19 | 2020-06-19 | 上海爱雨环境科技有限公司 | Natural ecological circulating irrigation system for viaduct |
| CN112337162A (en) * | 2020-10-28 | 2021-02-09 | 四川大学 | Rainwater filtering device and road gutter inlet |
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