CN214654322U - Sponge city system applied to northern area - Google Patents
Sponge city system applied to northern area Download PDFInfo
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- CN214654322U CN214654322U CN202120580972.8U CN202120580972U CN214654322U CN 214654322 U CN214654322 U CN 214654322U CN 202120580972 U CN202120580972 U CN 202120580972U CN 214654322 U CN214654322 U CN 214654322U
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Abstract
The utility model discloses a sponge city system for northern area, it includes sewage treatment plant, snow melt device, rainwater collection system, river course, water pump, biological detention system city receiving system and connects a plurality of pipelines of each part, under the arid few rain's of northern area spring, summer, autumn lack of water state, available river course cooperates with rainwater collection system to the biological detention system water supply, in order to alleviate the lack of water problem, if meet the too much condition of rainfall simultaneously, the river course also can be regarded as the overflow channel and in time drains the waterlogging; in the state of cold winter, rain and snow are much, the reclaimed water produced by the sewage treatment plant can be used for supplying water for the bioretention system after the snow collected in the snow melting device is melted, so that the problems of pollution and the like caused by snow melting by adopting a snow melting agent can be avoided, and the problem of serious water shortage in winter in northern areas is also solved. The utility model relates to a rationally, the practicality is strong, is favorable to sponge city system to exert its function, has improved the adaptability of sponge city in the area in the north greatly.
Description
The technical field is as follows:
the utility model relates to a sponge city construction technical field, in particular to be applied to sponge city system in northern area.
Background art:
in recent years, sponge cities have become a new direction for city construction as a new-era rain flood management concept. The sponge city is a city which can absorb water, store water, seep water and purify water like a sponge body when raining, and release and utilize the stored water when water is deficient.
However, in northern areas, the construction of sponge cities has certain limitations:
1: the northern area is dry, rain-less and evaporation capacity is large, so that the existing sponge city system can not exert the ideal water resource management function, and the water shortage state of the northern area is still continuous;
2: in northern areas, the duration of cold weather in winter is long, and more ice and snow exist, so that the problem of water shortage is aggravated due to freezing, and the problem of snow melting is also required to be faced, namely after snowfall, in order to ensure normal traffic of motor vehicles and pedestrians, snow melting is usually carried out by using a snow melting agent, the main components of the snow melting agent are chlorine salt and potassium acetate, the ground and shallow groundwater can be polluted along with the infiltration of snow water into the ground, if the snow water infiltrates into a sponge urban water storage module and is used for irrigating, the salt concentration in the water at the root of a plant can be increased, the original osmotic balance of the plant can be broken, the plant can be irreversibly damaged, and finally the plant can die; meanwhile, the extra salt content also ensures that the original weak soil fertility of the urban green land is leaner, so that the soil is hardened, and finally the 'connecting channel' of the root system, air and moisture is blocked.
The utility model has the following contents:
the utility model provides a sponge city system of being applied to northern area that can effectively solve northern area water shortage problem and snow melt problem.
The utility model discloses by following technical scheme implement: a sponge city system applied to northern areas comprises a sewage treatment plant, a first pipeline, a snow melting device, a rainwater collecting system, a second pipeline, a third pipeline, a river channel, a water pump, a fourth pipeline, a biological retention system, a fifth pipeline and a city receiving system;
the outlet end of the sewage treatment plant is communicated with the inlet end of the snow melting device through the first pipeline, the outlet end of the snow melting device, the outlet end of the rainwater collection system and the outlet end of the third pipeline are communicated with the inlet end of the water pump through the second pipeline, the inlet end of the third pipeline is communicated with the river channel, the outlet end of the water pump is communicated with the inlet end of the biological retention system through the fourth pipeline, and the outlet end of the biological retention system is respectively communicated with the city receiving system and the river channel through the fifth pipeline.
Furthermore, the river channel water-saving device further comprises a plurality of sixth pipelines, the inlet ends of the sixth pipelines are communicated with the second pipeline, and the outlet ends of the sixth pipelines are communicated with the river channel.
Furthermore, the snow melting device comprises a snow melting pool and a stirrer, wherein a filter screen is arranged in the snow melting pool, and a stirring blade of the stirrer is arranged in the filter screen.
Further, an MBR membrane bioreactor is arranged on the third pipeline.
Furthermore, the biological retention system sequentially comprises a vegetable layer, a water storage layer, a planting soil layer, a packing layer, a sand and stone layer and a gravel layer from top to bottom.
Further, an ecological floating island is arranged in the river channel.
Further, the city receiving system comprises a city park and/or a cell park.
The utility model has the advantages that:
the utility model provides a sponge urban system for northern area includes sewage treatment plant, snow melt device, rainwater collection system, river course, water pump, biological detention system, city receiving system and connects a plurality of pipelines of each part, under the arid few rain's of northern area spring, summer, autumn hydropenia state, usable river course cooperates with rainwater collection system to the biological detention system supplies water, in order to alleviate the hydropenia problem, if meet the too much condition of rainfall simultaneously, the river course can also be regarded as the overflow channel and drained the waterlogging in time; in the state of cold winter, rain and snow are much, the reclaimed water produced by the sewage treatment plant can be used for supplying water for the bioretention system after the snow collected in the snow melting device is melted, so that the problems of pollution and the like caused by snow melting by adopting a snow melting agent can be avoided, and the problem of serious water shortage in winter in northern areas is also solved. The utility model relates to a rationally, the practicality is strong, is favorable to sponge city system to exert its function, has improved the adaptability of sponge city in the area in the north greatly.
Further, the utility model discloses still be provided with MBR membrane bioreactor on the third pipeline in sponge urban system, can tentatively purify the water that the river course provided to biological detention system.
Further, the utility model discloses still set up ecological chinampa in the river course of sponge urban system, can realize the purification effect to polluting the water in the river course.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the snow-melting pool.
The parts in the drawings are numbered as follows:
the sewage treatment plant 10, the first pipeline 20, the snow melting device 30, the snow melting pond 301, the filter screen 3011, the agitator 302, the rainwater collection system 40, the second pipeline 50, the third pipeline 60, the MBR membrane bioreactor 601, the river 70, the ecological floating island 701, the water pump 80, the fourth pipeline 90, the biological detention system 100, the vegetation layer 1001, the aquifer 1002, the planting soil layer 1003, the packing layer 1004, the gravel layer 1005, the gravel layer 1006, the fifth pipeline 110, the urban receiving system 120, the urban park 1201, the plot park 1202, the sixth pipeline 130.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1-2, the present embodiment provides a sponge urban system applied to northern areas, which includes a sewage treatment plant 10, a first pipeline 20, a snow melting device 30, a rainwater collecting system 40, a second pipeline 50, a third pipeline 60, a river 70, a water pump 80, a fourth pipeline 90, a biological retention system 100, a fifth pipeline 110 and an urban receiving system 120;
wherein the outlet end of the sewage treatment plant 10 is communicated with the inlet end of the snow melting device 30 through the first pipeline 20, the outlet end of the snow melting device 30, the outlet end of the rainwater collection system 40 and the outlet end of the third pipeline 60 are communicated with the inlet end of the water pump 80 through the second pipeline 50, the inlet end of the third pipeline 60 is communicated with the river channel 70, the outlet end of the water pump 80 is communicated with the inlet end of the biological retention system 100 through the fourth pipeline 90, the outlet end of the biological retention system 100 is respectively communicated with the city receiving system 120 and the river channel 70 through the fifth pipeline 110, and thus the river channel 70 and the city receiving system 120 receive the water treated by the biological retention system 100.
In a water shortage state of drought and rain in spring, summer and autumn in the northern area, the river 70 is utilized to cooperate with the rainwater collection system 40 to supply water for the bioretention system 100, so that the water shortage problem can be effectively relieved; in the state of cold winter with much rain and snow, the reclaimed water (the water temperature is about 12 ℃ in winter) generated by the sewage treatment plant 10 can be used for melting the snow collected in the snow melting device 30 and then supplying water for the bioretention system 100, so that the problems of pollution and the like caused by snow melting by adopting a snow melting agent can be avoided, and the problem of serious water shortage in winter in northern areas is also solved.
As an example, the sponge city system applied to northern areas of this embodiment further includes a plurality of sixth pipelines 130, inlet ends of the plurality of sixth pipelines 130 are all communicated with the second pipeline 50, and outlet ends of the plurality of sixth pipelines 130 are all communicated with the river 70.
Although northern area is mostly the arid few rain state, but also can meet the too much condition of rainfall, and at this moment, river course 70 also can in time carry out the drainage waterlogging as the overflow channel simultaneously, has further improved the elasticity that the sponge urban system of this embodiment dealt with all kinds of weather conditions.
It should be noted that, valves are correspondingly disposed on the pipelines, and the types, the number, the positions, and the like of the valves are not limited, and those skilled in the art may select the installation according to actual situations.
As an example, the snow melting device 30 includes a snow melting pool 301 and a stirrer 302, and the stirrer 302 is used to stir snow in the snow melting pool 301 to accelerate melting of the snow; wherein, be provided with filter screen 3011 in the snow melt pond 301, filter screen 3011 is used for holding the snow of collecting, and the stirring vane setting of agitator 302 is in filter screen 3011, and the fixed mode of agitator 302's motor is not the restriction, can set up according to actual conditions, can use the support to fix agitator 302's motor directly over filter screen 3011 for example.
As an example, an MBR membrane bioreactor 601 is disposed on the third pipe 60, and may primarily purify the water provided by the river 70 to the bioretention system 100.
The core of the MBR treatment process is a hollow fiber ultrafiltration membrane and an activated sludge treatment system, the principle is that nitrobacteria in a reactor are utilized to convert ammonia nitrogen in water so as to remove peculiar smell, aerobic microorganisms are utilized to degrade organic pollutants in the water, and finally, the hollow fiber membrane is used for high-efficiency solid-liquid separation so as to achieve the purpose of purifying water.
As an example, the bioretention system 100 comprises, from top to bottom, a vegetation layer 1001, an aquifer 1002, a planting soil layer 1003, a packing layer 1004, a gravel layer 1005 and a gravel layer 1006.
The kind of the plant in the vegetation layer 1001 is not particularly limited, and may be selected by those skilled in the art according to actual needs. Preferably, the plants are plants which are resistant to flooding and drought, have heavy metal adsorption capacity and pollutant degradation capacity and have certain ornamental value, such as large flowers, ophiopogon roots, sabina vulgaris, sedum, and the like.
The filler plays a key role in the functioning of the bioretention system 100, and is particularly significant in maintaining the water-draining property in the bioretention system 100, effectively removing substances such as nitrogen, phosphorus, heavy metals and the like, and normally growing plants. It should be noted that, the kind of the filler in the filler layer 1004 in this embodiment is not particularly limited, and those skilled in the art can select the filler according to actual needs, such as zeolite, ceramsite, anthracite, aluminum sludge, fly ash, medical stone, etc.
As an example, an ecological floating island 701 is disposed in the river 70, so that the polluted water in the river 70 can be purified.
The ecological floating island 701 has the function of purifying the water body, and mainly utilizes the root system of the floating island plants to absorb eutrophic substances in the water, such as total phosphorus, ammonia nitrogen, organic matters and the like, so that the nutrition of the water body is transferred, and the phenomena of fishy smell and eutrophication of the water body caused by the insufficient sealing or self-circulation of the water body are reduced.
By way of example, the city reception system 120 includes a city park 1201 and/or a cell park 1202.
The operation of this embodiment is as follows:
in spring, summer and autumn, the water purified by the ecological floating island 701 in the river 70 enters the third pipeline 60, the water enters the second pipeline 50 after being purified again by the MBR (membrane bioreactor) 601 on the third pipeline 60, the water and the rainwater collected in the rainwater collection system 40 are gathered in the second pipeline 50 and then pumped into the fourth pipeline 90 by the water pump 80, then the water enters the biological retention system 100 through the fourth pipeline 90, the filler in the biological retention system 100 can adsorb nitrogen, phosphorus and heavy metal substances in the water, meanwhile, the plants in the biological retention system 100 can also cooperate with the filler to purify the polluted water, and the water treated by the biological retention system 100 is finally distributed to the river 70 and the urban receiving system 120 through the fifth pipeline 110; the river 70 is put into a sponge city system and is cooperated with the rainwater collection system 40 to supply water to the bioretention system 100, so that the problem of water shortage caused by drought, rain and large evaporation capacity in northern areas can be effectively relieved; meanwhile, if the rainwater is in extreme weather and the rainfall is excessive, the rainwater collected by the rainwater collection system 40 can be discharged into the river 70 through the sixth pipeline 130, so that waterlogging is avoided.
In winter, the northern area is cold and has much rain and snow, the river 70 is usually in a frozen state, at the moment, snow is collected to the snow melting device 30 and then is melted by reclaimed water (the temperature of water is about 12 ℃ in winter) discharged from the sewage treatment plant 10, the melted snow water and rainwater collected in the rainwater collection system 40 are gathered in the second pipeline 50 to supply water for the bioretention system 100, the melted snow water contains more dust, smoke dust and toxic nitrogen oxides, snow melting agents, nitrogen, phosphorus and heavy metal substances, pollutants in the snow melting water can be adsorbed by the bioretention system 100, the purification purpose is achieved, and the design can simultaneously solve the problem of snow melting in winter in the northern area and the problem of water shortage in sponge cities.
This embodiment reasonable in design, the practicality is strong, is favorable to sponge city system to exert its function, has improved the adaptability of sponge city in northern area greatly.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A sponge city system applied to northern areas is characterized by comprising a sewage treatment plant, a first pipeline, a snow melting device, a rainwater collecting system, a second pipeline, a third pipeline, a river channel, a water pump, a fourth pipeline, a biological retention system, a fifth pipeline and a city receiving system;
the outlet end of the sewage treatment plant is communicated with the inlet end of the snow melting device through the first pipeline, the outlet end of the snow melting device, the outlet end of the rainwater collection system and the outlet end of the third pipeline are communicated with the inlet end of the water pump through the second pipeline, the inlet end of the third pipeline is communicated with the river channel, the outlet end of the water pump is communicated with the inlet end of the biological retention system through the fourth pipeline, and the outlet end of the biological retention system is respectively communicated with the city receiving system and the river channel through the fifth pipeline.
2. The sponge city system as claimed in claim 1, further comprising a plurality of sixth pipes, wherein the inlet ends of the plurality of sixth pipes are all connected to the second pipe, and the outlet ends of the plurality of sixth pipes are all connected to the river.
3. The sponge city system for northern area as recited in claim 1, wherein said snow melting device comprises a snow melting pool and a stirrer, said snow melting pool is provided with a filter screen, and a stirring blade of said stirrer is disposed in said filter screen.
4. The sponge urban system for northern areas according to claim 1, wherein an MBR membrane bioreactor is arranged on the third pipeline.
5. The sponge urban system for northern areas according to claim 1, wherein said bioretention system comprises, from top to bottom, a vegetation layer, an aquifer, a planting soil layer, a packing layer, a sand and stone layer and a gravel layer.
6. The sponge city system for northern areas according to claim 1, wherein an ecological floating island is provided in the river channel.
7. The sponge city system for northern areas as recited in claim 1, wherein said city reception system comprises city park and/or cell park.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020228472485 | 2020-12-02 | ||
| CN202022847248 | 2020-12-02 |
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| Publication Number | Publication Date |
|---|---|
| CN214654322U true CN214654322U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120580972.8U Expired - Fee Related CN214654322U (en) | 2020-12-02 | 2021-03-22 | Sponge city system applied to northern area |
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| Country | Link |
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| CN (1) | CN214654322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380396A (en) * | 2021-12-12 | 2022-04-22 | 黑龙江茂程科技有限责任公司 | Biological detention system suitable for reduce river course non-point source pollution in cold region |
-
2021
- 2021-03-22 CN CN202120580972.8U patent/CN214654322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380396A (en) * | 2021-12-12 | 2022-04-22 | 黑龙江茂程科技有限责任公司 | Biological detention system suitable for reduce river course non-point source pollution in cold region |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |