CN112425481A - Water treatment system for sponge city - Google Patents
Water treatment system for sponge city Download PDFInfo
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- CN112425481A CN112425481A CN202011042626.0A CN202011042626A CN112425481A CN 112425481 A CN112425481 A CN 112425481A CN 202011042626 A CN202011042626 A CN 202011042626A CN 112425481 A CN112425481 A CN 112425481A
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
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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
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- 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
- E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Environmental Sciences (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention provides a water treatment system for a sponge city, which is used for water treatment of a green planting area, wherein the green planting area comprises soil and green plants planted on the soil, and the water treatment system comprises: the water storage unit and the capillary flow guide connecting piece; the water storage unit is arranged outside the soil of the green planting area or inside the soil of the green planting area; and two ends of the capillary flow guide connecting piece are respectively connected to the water storage unit and the soil. This water treatment system carries to the retaining of retaining unit to the storage of rainwater and through capillary water conservancy diversion connecting piece to the retaining in soil through the retaining unit, realizes the make full use of rainwater resource, to green plant the maintenance, prevent the aspect such as soil erosion and water loss and have good effect.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a water treatment system for a sponge city.
Background
The sponge city is a new generation city rainfall flood management concept, means that the city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes and coping with natural disasters caused by rainwater, and particularly is a city development mode which fully exerts the functions of absorption, storage and seepage and slow release of rainwater by building, road, greenbelt, water system and other ecological systems, effectively controls rainwater runoff and realizes natural accumulation, natural seepage and natural purification by strengthening city planning construction management. The construction of the sponge city effectively relieves urban waterlogging, so that urban water ecology can be restored, and the sponge city plays a vital role in improving urban water environment, conserving urban water resources, improving urban greening rate, improving urban water safety, improving the quality of life of people and the like.
In the construction of sponge cities, a very important content for water resource utilization is how to realize water supply control of green plants, namely, rainwater is collected in rainy days and redundant rainwater is discharged from soil in time, and then the collected rainwater is utilized to properly supply water to the soil in drought days so as to keep water and soil balance of the soil.
Disclosure of Invention
The invention provides a water treatment system for a sponge city, provides a novel water treatment system based on green plants, and can well and automatically realize the functions of moisturizing and preserving soil for soil.
Accordingly, the present invention provides a water treatment system for sponge cities for water treatment of greenery areas comprising soil and greenery planted thereon, the water treatment system comprising: the water storage unit and the capillary flow guide connecting piece;
the water storage unit is arranged outside the soil of the green planting area or inside the soil of the green planting area;
and two ends of the capillary flow guide connecting piece are respectively connected to the water storage unit and the soil.
In an optional embodiment, the system further comprises an overflow unit;
the overflow unit comprises a flow guide pipe, the top end of the flow guide pipe is far away from the top surface of the soil, and the bottom end of the flow guide pipe is communicated with a municipal drainage pipeline.
In an alternative embodiment, a pressure relief element is provided between the top and bottom ends of the draft tube.
In an optional embodiment, the water storage unit is a water tank buried underground;
the water tank is provided with an input port which is communicated with the ground surface, and a filtering unit is arranged between the input port and the ground surface.
In an optional embodiment, two ends of the capillary diversion connector are respectively connected to the water tank and the soil, and an installation protection pipe is arranged outside the capillary diversion connector in a surrounding manner.
In an alternative embodiment, the water tank and the filter unit are of an integral structure, the top surface of the water tank is open, and the filter unit is arranged on the water tank as the top surface of the water tank.
In an optional embodiment, the green planting area is surrounded by a kerbstone, and a drainage channel is arranged outside the kerbstone;
the filtering unit is arranged at the bottom of the drainage channel, and the water tank is arranged below the filtering unit.
In an alternative embodiment, the water storage unit is disposed below the soil.
In an alternative embodiment, the water storage unit is a water tank.
In an alternative embodiment, the top layer of the tank is provided with a permeable layer.
In conclusion, the invention provides a water treatment system for a sponge city, provides a novel water treatment system based on green plants, and can well and automatically realize the functions of moisturizing and preserving soil.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a water treatment system according to an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a water treatment system according to an embodiment of the invention.
Fig. 3 shows a schematic structural diagram of a water treatment system according to an embodiment of the invention.
Fig. 4 shows a schematic structural diagram of a water treatment system according to an embodiment of the 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.
The first embodiment is as follows:
fig. 1 shows a schematic structural diagram of a water treatment system according to an embodiment of the present invention. The embodiment of the invention provides a water treatment system for a sponge city, which is used for water treatment of a green planting area, wherein the green planting area comprises soil 101 and green plants 102 planted on the soil 101, and specifically, for convenience of illustration, the green planting area is directly represented by a two-layer structure which is arranged in the vertical direction in the attached drawing 1.
In a basic aspect, the water treatment system of an embodiment of the present invention includes: a water storage unit 103 and a capillary flow guiding connector 104.
The water storage unit 103 is a structure capable of storing water, including but not limited to water tanks, buckets and other devices, and building structures such as water storage pools, reservoirs and the like, basically, the water storage unit 103 has an input port for water input, the input port is generally used for collecting rainwater, a rainwater collection structure with various structures can be adopted to connect with a water supply system, and water can be delivered in an active access manner by a manual water delivery manner when no rainwater is available.
The capillary flow guide connecting piece is a connecting structure for guiding water flow by means of capillary action, and the capillary action refers to the phenomenon that wetting liquid rises in a thin tube and the phenomenon that non-wetting liquid falls in the thin tube; in some objects, many fine pores act as capillaries, and the combined action of surface tension, cohesion and adhesion of liquid enables moisture to rise to a certain height in the capillaries with smaller diameters, which is called capillary phenomenon. Specifically, the capillary flow guiding connector according to the embodiment of the present invention includes any connector made of a material capable of wetting water molecules, and specifically, the following embodiments will explain the specific structure of the capillary flow guiding connector.
Specifically, the water storage unit 103 is disposed outside the soil 101 of the green planting area or inside the soil 101 of the green planting area, that is, the water storage unit 103 may be disposed in the soil 101 or disposed outside the green planting area.
Specifically, both ends of the capillary flow guiding connector 104 are respectively connected to the water storage unit 103 and the soil 101.
Specifically, the water storage unit 103 collects and stores rainwater, and then is responsible for transferring the rainwater from the water storage unit 103 to the soil 101 through the capillary flow guiding connection piece 104. Specifically, it should be noted that, since the transmission mechanism of the capillary flow guiding connection piece 104 is performed by the capillary effect, which can be understood as a characteristic of the liquid molecules climbing along a specific substance, when there is enough rainwater in the water storage unit 103, the rainwater (molecules) in the water storage unit 103 can move along the capillary flow guiding connection piece 104, so that water molecules move from the inside to the outside of the water storage unit 103, from the beginning of the capillary flow guiding connection piece 104 to the end of the capillary flow guiding connection piece 104 (the beginning and the end are relative), during the movement of the water molecules along the capillary flow guiding connection piece 104, if the capillary flow guiding connection piece 104 is not in contact with the outside, the water molecules will always climb on the capillary flow guiding connection piece 104 under ideal conditions (no evaporation, etc.), in particular, the capillary flow guiding connection piece 104 will extend into the soil 101, the soil 101 is equivalent to another capillary diversion connector 104 (which can be soaked by water molecules and has a certain pore structure), so that the water molecules can climb into the soil from the capillary diversion connector 104, the water balance in the capillary diversion connector 104 is damaged, and a transportation process that rainwater in the water storage unit 103 continuously moves to the soil 101 through the capillary diversion connector 104 is formed; in addition, in the soil 101, if the soil 101 is wetted to a certain degree, the soil 101 forms another water storage unit (second water storage unit), water molecules in the second water storage unit also flow back into the water storage unit 103 through the capillary flow guiding connection element 104, and if the water molecule return speed of the second water storage unit is the same as the water molecule delivery speed of the water storage unit 103, the macroscopic situation is that the water amount in the water storage unit 103 remains unchanged.
Specifically, according to different planting conditions of the green plants 102, different distribution areas of the green plants 102 are different, water requirements of the soil 101 corresponding to the green plants 102 are different, and the arrangement of the capillary flow guide connecting piece 104 needs to be adjusted correspondingly.
It should be noted that, in the prior art, there are many estimation methods related to irrigation water demand of landscape plants, and in the specific implementation, the water demand of different green plants can be estimated by referring to the existing methods, so as to determine the arrangement mode of the capillary flow guide connection member 104.
Specifically, the arrangement structure of the capillary flow-guiding connector 104 according to the embodiment of the present invention mainly includes the structure (composition structure) of the capillary flow-guiding connector 104 and the arrangement manner of the capillary flow-guiding connector 104.
Specifically, the structure of the capillary flow guiding connector 104 mainly affects the transmission speed of water molecules, and comprehensively, the capillary flow guiding connector 104 made of different materials or having different structures has an effect on the transmission speed of water molecules; the larger the contact surface area of the capillary flow-guiding connecting piece 104 with the soil 103 is, the faster the transmission speed of water molecules is; therefore, by increasing the contact surface area of the capillary flow guiding connector 104 and the soil 103, the water molecule transmission speed of the corresponding area can be relatively enhanced. Specifically, the following embodiments will be described with respect to specific components of the capillary flow guiding connector 104.
Specifically, regarding the arrangement mode of the capillary flow guiding connector 104, on one hand, the arrangement density of the capillary flow guiding connector 104 in the soil affects the water molecule transportation speed of the corresponding area, and the larger the arrangement density of the capillary flow guiding connector 104 in the soil is, the faster the water molecule transportation speed of the corresponding area is; on the other hand, the positions of the initial and final ends of the capillary diversion connector 104 may also affect the transportation of rainwater.
Specifically, the arrangement of the start of the capillary flow guiding connection 104 in the water storage unit 103 highly affects the flow breaking sequence of the water supply. Specifically, for different green plants, on one hand, there is a difference in value, and on the other hand, there is also a difference in planting difficulty; because the water amount in the water storage unit 103 is constant, in order to guarantee the water supply for the expensive green plants or the green plants with high planting difficulty, the depth of the starting end (located at one end of the water storage unit 103) of the capillary diversion connecting piece 104 corresponding to the area is deeper than the starting end of the capillary diversion connecting piece 104 corresponding to the area with low value or the green plants with low planting difficulty, and through the arrangement mode, when the water amount in the water storage unit 103 is reduced, along with the reduction of the liquid level, different capillary diversion connecting pieces 104 can start the depth arrangement of the starting ends to supply rainwater in an off-line mode, so that the water supply off-line sequence of the capillary diversion connecting pieces 104 in different areas can be passively adjusted according to actual conditions, and the water supply for the green plants with important attention can be well guaranteed.
Specifically, fig. 1 illustrates a situation that the capillary flow guide connection piece 104 is led out from the top of the water storage unit 103, and the capillary flow guide connection piece 104 can also be led out from the side of the water storage unit 103, so that the same supply interruption sequence control is realized through different leading heights, and no additional description is provided in the embodiment of the present invention.
Example two:
fig. 2 shows a schematic structural diagram of a water treatment system according to an embodiment of the invention. On the basis of the first embodiment, in order to avoid soil loss caused by waterlogging in green planting areas, the water treatment system of the embodiment of the invention further comprises an overflow unit.
Basically, based on the implementation difficulty, the overflow unit comprises a flow guide pipe 105, the top end of the flow guide pipe 105 is a preset distance away from the top surface of the soil, and the bottom end of the flow guide pipe 105 is communicated with a municipal drainage pipeline.
According to the specific soil condition of the green planting area, through the design of the setting height of the top end of the flow guide pipe 105, rainwater can be quickly discharged through the flow guide pipe 105 when the rainwater reaches a certain height, and the problems that the local water level of the green planting area is too high, soil loss is caused, and partial green plants are soaked in the rainwater are avoided; generally, in the city, green planting area generally sets up in the enclosure region of curbstone, and when the water level is not higher than certain degree, soil can remain throughout in the enclosure region of curbstone, can not externally run off.
Further, a pressure relief element 106 is disposed between the top end and the bottom end of the flow guide tube 105. It should be noted that the draft tube 105 is an overall concept of a drainage pipeline, the components indicated by reference numerals 105 in fig. 2 are indicated as the draft tube 105, and in fact, the draft tube 105 further includes a dotted line structure, and the structure of the draft tube 105 is indicated by a dotted line only in fig. 2 because the flow direction and arrangement of the draft tube 105 are various. The pressure relief element 106 is disposed between the top end and the bottom end of the draft tube 105, that is, between the head end and the tail end of the draft tube 105, and functions to control whether rainwater flows to the municipal pipeline through the draft tube 105 not only by the height at which the top end of the draft tube 105 is disposed, but also by the opening pressure of the pressure relief element 106.
Specifically, the pressure relief element 106 has an opening pressure (pressure), and when the water level reaches a preset level after the draft tube 105 is completely filled with rainwater, the pressure relief element 106 is opened and performs pressure relief of the rainwater, so that the rainwater can flow to the municipal pipeline. Through this mode of setting up, can make the top of honeycomb duct 105 set up the high requirement and reduce, even keep level with the soil top surface, through the opening pressure of reasonable setting pressure relief component 106, can realize carrying out the effect of accuse flow to the rainwater of take the altitude.
Furthermore, because the water stored in the water storage unit 103 needs to be supplemented, when raining, the guide pipe 105 can be communicated with the input port of the water storage unit 103, as long as the water storage amount of the water storage unit 103 reaches a certain degree, rainwater can overflow out of the water storage unit 103, and then the rainwater in the green planting area is controlled by the aid of the height design of the top end of the guide pipe 105 and the design function of the pressure relief element 106.
Example three:
the water storage unit can be in the form of a water tank (box body structure), a water pool (built water pool structure or water pool structure formed by equipment), a reservoir (built closed water storage space) and the like according to the arrangement form of the water storage unit, and specifically, the embodiment of the invention is directed to a common water storage unit implementation mode in the occasions of urban greening, community greening and the like.
Fig. 3 shows a schematic structural diagram of a water treatment system according to an embodiment of the invention. Specifically, the green planting area includes soil 101 and green plants 102, and the green planting area is surrounded by a road edge stone 107. Correspondingly, the outside of the road edge stone is a road 111, and a drainage ditch is arranged at the side of the road 111 (the drainage ditch is arranged between the road 111 and the road edge stone 107). Specifically, the water storage unit is formed by hollowing the lower part of the drainage ditch, and specifically, the water storage unit of the embodiment of the invention is a water storage space 110 formed by digging a road downwards.
Specifically, retaining space 110 top is provided with filter screen 109, and filter screen 109's effect is the water that filters entering retaining space 110, guarantees the relative clean of the water of retaining in the retaining space 110, and is further, can lay apron 108 in filter screen 109 top, and apron 108 is used for providing a supporting role, prevents that the external world from stepping on the empty au 110 of retaining, produces the potential safety hazard.
Correspondingly, the capillary flow guiding connector 104 is led out from the side of the water storage space 110, and optionally, a mounting protection tube 112 is sleeved outside the capillary flow guiding connector 104, on one hand, the mounting protection tube 112 can release water molecules into the soil at a specific position, and on the other hand, the mounting protection tube 112 can protect the capillary flow guiding connector 104.
With the above described embodiments, for this type of implementation, it can be summarized as: specifically, the water storage unit can be for burying in the water tank (including multiple type retaining structure) underground, the water tank has an input port, input port and earth's surface intercommunication just the input port with be provided with the filter unit between the earth's surface to the assurance gets into the clean of the quality of water in retaining space.
Correspondingly, the two ends of the capillary flow guide connecting piece are respectively connected to the water tank and the soil, and the installation protection tube is arranged outside the capillary flow guide connecting piece in a surrounding mode to obtain a better water molecule transportation effect and effectively protect the capillary flow guide connecting piece. The installation protection tube can be a PVC tube or a metal tube.
In specific implementation, the water tank and the filtering unit can be of an integrated structure, the top surface of the water tank is open, and the filtering unit is arranged on the water tank as the top surface of the water tank.
Example four:
correspondingly, the water tank of the embodiment of the invention is arranged below the soil, similar to the three phases of the embodiment.
Fig. 4 shows a schematic structural diagram of a water treatment system according to an embodiment of the invention. The embodiment of the invention provides a water treatment system, and the water tank (the second water storage space 112) of the embodiment of the invention is arranged below soil.
Alternatively, referring to the foregoing description, the second water storage space 112 may be disposed in the area surrounded by the curbstone, and during construction, a water tank is first placed under the soil 101 to be filled with money, or a water tank structure is processed by means of building construction; correspondingly, the capillary flow guiding connectors 104 are led out from the second water storage space 112 to the soil 101, at this time, the mounting protection pipes also play a role in supporting the capillary flow guiding connectors 104, and the tail end position of each capillary flow guiding connector 104 can be preset before soil is filled.
Further, the water storage source of the second water storage space 112 can be drained through the draft tube 105, specifically, the top end of the draft tube 105 is arranged on the surface layer of the soil, the bottom end of the draft tube 105 extends into the second water storage space 112, and the bottom end of the draft tube 105 is provided with the filtering structure 113; referring to the illustrated embodiment of fig. 2, the second water storage space may be connected to the municipal pipe by a pressure relief device.
Further, a permeable layer may be disposed on the top layer of the water tank, and the permeable layer functions similarly to the capillary flow guiding connector 104, and transports water molecules by using capillary action, but the arrangement form is different. Specifically, the permeable layer is an area covering structure, and water in the second water storage space 112 can be locally transmitted to the bottom of the soil through the permeable layer to obtain a more uniform water transmission effect. In particular, the permeable layer is generally suitable for green-planted areas where soil 101 is thin and green-planted is less developed.
Example five:
in particular, the present invention provides a water treatment system with a plurality of capillary flow-guiding connectors, and the examples of the present invention exemplify some possible embodiments, and in particular, the capillary flow-guiding connectors may be flexible and bendable, and may also be rigid and inflexible.
Specifically, when the capillary flow guide connecting piece is flexible, the capillary flow guide connecting piece can be formed by winding a plurality of strands of flexible wires, and specifically, at least one of the plurality of strands of flexible wires is made of a material capable of being soaked by water.
Optionally, the plurality of strands of flexible wires further include at least one flexible wire for enhancing the strength of the capillary flow guide connecting piece and making the capillary flow guide connecting piece tougher, and specifically, the strands of flexible wires may be made of hemp, fish silk, wear-resistant rubber and the like.
Optionally, the plurality of strands of flexible wires may be wound around a support with high strength, and specifically, the support may be made of steel cables, steel bars, or the like.
Specifically, when the capillary flow guide connecting piece is rigid, the capillary flow guide connecting piece can be made of a rigid material with a porous structure, specifically, the capillary flow guide connecting piece can be formed by pressing granular materials to form the capillary flow guide connecting piece with a specific shape, and because gaps are formed among granules, the capillary flow guide connecting piece formed by pressing the granular materials naturally has the porous structure; specifically, a porous structure can be corroded on the surface of a structural member with a smooth surface made of a specific material by means of chemical corrosion to form a required capillary flow guide connecting piece; specifically, a pore structure can be given to the surface of the structural member with the smooth surface supported by a specific material through a physical processing means so as to form the required capillary flow guide connecting piece; in addition, special materials, such as nano materials, carbon materials and the like with pores in the self structure can be used for manufacturing the required capillary flow guiding connecting piece.
In the specific implementation, because of the universality of the capillary action realization mechanism, the specific implementation has more embodiments, and the embodiments of the invention are not described one by one.
In summary, the present invention provides a water treatment system for sponge cities, which stores rainwater by a water storage unit and transfers the stored water of the water storage unit to soil by a capillary diversion connector, so as to fully utilize rainwater resources and play a good role in green plant maintenance, water and soil loss prevention, etc.
In summary, the embodiment of the invention provides a water treatment system for a sponge city, which can realize the self-dredging function of the rainwater pipe filtering holes and reduce the maintenance difficulty by the design of the flow direction of collected rainwater; the structures required to be maintained by the whole system can be intensively arranged in the same area, so that the maintenance difficulty is further reduced; the whole system only adopts one set of driving device, realizes the operation of the system in different modes by using the control of the switch valve, has simple structure and low construction cost, and is beneficial to popularization and use.
The above detailed description is provided for the water treatment system for the sponge city provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A water treatment system for sponge cities for water treatment of greenery areas comprising soil and greenery planted thereon, the water treatment system comprising: the water storage unit and the capillary flow guide connecting piece;
the water storage unit is arranged outside the soil of the green planting area or inside the soil of the green planting area;
and two ends of the capillary flow guide connecting piece are respectively connected to the water storage unit and the soil.
2. The water treatment system for sponge cities of claim 1 further comprising an overflow unit;
the overflow unit comprises a flow guide pipe, the top end of the flow guide pipe is far away from the top surface of the soil, and the bottom end of the flow guide pipe is communicated with a municipal drainage pipeline.
3. The water treatment system for sponge cities as recited in claim 2 wherein a pressure relief element is disposed between the top and bottom ends of said draft tube.
4. The water treatment system for sponge cities as claimed in claim 1 wherein the water storage unit is a water tank buried underground;
the water tank is provided with an input port which is communicated with the ground surface, and a filtering unit is arranged between the input port and the ground surface.
5. The water treatment system for the sponge city as claimed in claim 4, wherein the capillary diversion connector has two ends connected to the water tank and the soil, respectively, and an installation protection pipe is arranged around the outside of the capillary diversion connector.
6. The water treatment system for a sponge city as recited in claim 4, wherein said water tank is of an integral structure with said filter unit, a top surface of said water tank is open, and said filter unit is provided on said water tank as a top surface of said water tank.
7. The water treatment system for sponge cities as recited in claim 4, wherein the greenery area is surrounded by a kerb, a drainage channel being provided outside the kerb;
the filtering unit is arranged at the bottom of the drainage channel, and the water tank is arranged below the filtering unit.
8. The water treatment system for sponge cities of claim 4, wherein the water storage unit is disposed below the soil.
9. The water treatment system for sponge cities of claim 8, wherein the water storage unit is a water tank.
10. The water treatment system for sponge cities as claimed in claim 9 wherein the top layer of the tank is provided with a permeable layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011042626.0A CN112425481A (en) | 2020-09-28 | 2020-09-28 | Water treatment system for sponge city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011042626.0A CN112425481A (en) | 2020-09-28 | 2020-09-28 | Water treatment system for sponge city |
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| Publication Number | Publication Date |
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| CN112425481A true CN112425481A (en) | 2021-03-02 |
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| CN202011042626.0A Pending CN112425481A (en) | 2020-09-28 | 2020-09-28 | Water treatment system for sponge city |
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Application publication date: 20210302 |