CN114149081A - Multifunctional lake shore ecological wetland system and operation method - Google Patents
Multifunctional lake shore ecological wetland system and operation method Download PDFInfo
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- CN114149081A CN114149081A CN202010926992.6A CN202010926992A CN114149081A CN 114149081 A CN114149081 A CN 114149081A CN 202010926992 A CN202010926992 A CN 202010926992A CN 114149081 A CN114149081 A CN 114149081A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 265
- 238000000746 purification Methods 0.000 claims abstract description 26
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 10
- 239000011435 rock Substances 0.000 claims description 6
- 239000012767 functional filler Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 239000008213 purified water Substances 0.000 claims description 2
- 102000010637 Aquaporins Human genes 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 241000195493 Cryptophyta Species 0.000 description 6
- 239000011449 brick Substances 0.000 description 4
- 238000012851 eutrophication Methods 0.000 description 4
- 239000002352 surface water Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- 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
Abstract
The invention discloses a multifunctional lake shore ecological wetland system and an operation method thereof. The internal circulation system lifts the lake water body and conveys the lake water body to a water distribution system at the front end of the wetland filter bed system, the water body flows through the wetland filter bed system to be purified and lifted, and the hydrodynamic force of the lake water body is improved. The operation control system consists of a circulating water pump switch controller and a water distribution pipeline control valve, and is the key for the stable operation, the overhaul and the maintenance of the system and the function of reducing non-point source pollution in rainy seasons. According to the invention, through the construction of the multifunctional lake shore ecological wetland system, the circulation and purification improvement of the lake water body by using the lake shore space are realized, the lake shore ecological landscape is enriched, the problems of single function and poor ecological landscape suitability of the traditional bypass purification measures are overcome, and the adaptability and application range of the artificial wetland technology are further improved.
Description
Technical Field
The invention discloses a multifunctional lake shore ecological wetland system and an operation method thereof, belonging to the technical field of water body ecological purification.
Background
With the rapid development of society, the living standard of people is increasingly improved, the development trend of improving living environment and pursuing excellent living quality is inevitable, and urban lakes are often the preferred hydrophilic leisure areas for people. However, due to the intervention and destruction of human activities, the urban lakes almost reach eutrophication or extremely eutrophication levels, and the environmental conditions are limited and cannot exert the service function value of the ecological systems of the urban lakes.
The eutrophication of the water body of the urban lake is serious, and the main reasons are that the self-purification capacity of the water body of the lake is limited, the water power of the water body is poor, and the non-point source pollution in rainy seasons is serious.
Disclosure of Invention
The invention aims to provide a multifunctional lake shore ecological wetland system, which can utilize lake shore space to circulate, purify and promote lake water, collect and treat rainwater, enrich lake shore ecological landscape, overcome the problems of single function and poor ecological landscape suitability of the traditional bypass purification measures, and further improve the adaptability and application range of the artificial wetland technology.
In order to realize the purpose, the invention adopts the following technical scheme:
a multifunctional lake shore ecological wetland system is characterized by comprising an internal circulation system, a water distribution system, a wetland filter bed system, a water outlet system, a wetland plant system and an operation control system;
the wetland system is arranged at a bay, wherein the water distribution system is arranged at a bank slope of the bay;
the internal circulation system lifts and conveys the water in the lake to the water distribution system, so that the stability of the water treatment capacity of the ecological wetland system is ensured, and the hydrodynamic force of the water in the lake is improved;
the water distribution system is positioned on one side of the whole wetland system, which is connected with the land area, so that the wetland is ensured to distribute water uniformly, and meanwhile, the peripheral rainwater is collected;
the wetland filter bed system is connected with the water distribution system, and water flows through the wetland filter bed system to be purified and lifted;
the water outlet system is positioned on one side of the whole wetland system connected with the water area, so that the purified water is ensured to stably flow into the lake water and the operation water level of the wetland system;
the wetland plant system is positioned at the top of the wetland filter bed system, so that the wetland purification capacity is improved, and the ecological landscape of the lake shore is enriched;
the operation control system consists of a water taking pump switch controller and a water distribution pipeline control valve.
On the basis of the technical scheme, the invention can also adopt the following further technical schemes or combine the further technical schemes for use:
the internal circulation system consists of a circulating water pump and a circulating water delivery pipeline, and a water intake of the circulating water pump is positioned in a lake area far away from the water outlet system.
The water distribution system consists of a water distribution main pipe, a water distribution branch pipe, a water distribution channel, a water distribution gabion and natural gravels; the water distribution channel takes a bank slope as a channel wall at one side of the water distribution channel and plays a role of collecting rainwater at the same time; the other side canal wall and the canal bottom of the water distribution canal adopt natural gravels, and the water distribution gabion is arranged on the natural gravels canal wall to abut and support and shape the natural gravels canal wall.
The wetland filter bed system consists of a graded broken stone area and a functional filler area.
The water outlet system consists of a water outlet gabion, a water outlet tracery wall and naturally stacked stones; the water outlet gabion is close to the water outlet side of the wetland filter bed system, the filler is protected, the outlet water is homogenized, and the water outlet tracery wall is close to the water outlet side of the water outlet gabion and is uniformly provided with water outlet wall holes; the naturally-stacked rock blocks are attached to the outer side of the water outlet tracery wall, and the height of the naturally-stacked rock blocks is close to the surface of the lake.
The wetland filter bed system is provided with one or more partition walls to divide the wetland filter bed system into a plurality of parallel blocks, the partition walls are separated from a water distribution channel of the water distribution system, each wetland filter bed system block is attached with one section of water distribution channel, and each section of water distribution channel is respectively attached with a water distribution branch pipe.
The wetland filter bed system is arranged in the shallow water area near the bank of the lake bay.
The second purpose of the invention is to provide an operation method of the multifunctional lake shore ecological wetland system. Therefore, the invention adopts the following technical scheme:
the method comprises the following steps: and starting a switch controller of the circulating water pump, enabling the lake water body to enter the wetland filter bed system through the internal circulating water delivery pipeline and the water distribution system to realize purification and lifting, and enabling the wetland effluent to stably converge into the lake water body through the water outlet system.
Furthermore, the water inflow of different blocks of the wetland filter bed system can be controlled and adjusted through the water distribution pipeline control valve; under the condition of maintenance, closing the water distribution pipeline control valve corresponding to the wetland filter bed system block, stopping water inflow of the block, maintaining the wetland filter bed system block, re-opening the water distribution pipeline control valve corresponding to the wetland filter bed system block after the maintenance work is finished, and re-entering the lake water body into the wetland filter bed system to recover the water body purification function and the lake water body circulation.
Furthermore, under the operating condition of sunny days, a water distribution pipeline control valve is opened to start a circulating water pump, and the lake water uniformly enters the wetland filter bed system through the water distribution system, so that the circulation and purification of the lake water are realized; under the operation condition of rainy days, the circulating water pump is closed to suspend the circulation and purification of the lake water body, the water distribution system mainly collects peripheral rainwater, and the wetland filter bed system is utilized to purify and lift the rainwater collected in the peripheral area. Therefore, under the working condition of fine day operation, the lake water uniformly enters the wetland filter bed through the water distribution system, so that the circulation and purification of the lake water are realized, the improvement on the water quality and the hydrodynamic force of the lake water is continuously and stably kept, and meanwhile, the diversity of the ecological landscape of the lake shore is effectively improved. Under the operating condition of rainy days, the water distribution system mainly collects peripheral rainwater, and effectively purifies and promotes the rainwater collected in the peripheral area by using the wetland filter bed. Realizes the conversion of different functions of the filter bed wetland and fully exerts the purification function of the wetland.
In conclusion, the multifunctional lake shore ecological wetland and the operation method provided by the invention solve the problems of poor water body fluidity of lakes in sunny days and serious non-point source pollution in rainy days, reduce the eutrophication degree of water bodies, relieve the algae outbreak phenomenon, improve the transparency of the water bodies, can be seamlessly connected with the greening of surrounding landscapes, improve the water quality and enrich the lake shore ecological landscapes. In addition, land occupation and lake surface occupation of the wetland system are balanced and divided reasonably, and the wetland plant system on the lake surface can be prepared by effectively connecting the land.
Drawings
FIG. 1 is a plan view of the multifunctional lake shore ecological wetland composition of the invention;
FIG. 2 is a sectional view of the multifunctional lake shore ecological wetland composition of the invention;
FIG. 3 is a diagram of the method of overlapping the bricks of the wall of the present invention;
in the figure, 1 is an internal circulation system, 11 is a circulating water pump, 12 is a circulating water pipeline, 13 is a circulating water pump switch controller, 2 is a water distribution system, 21 is a water distribution main pipe, 22 is a water distribution branch pipe, 23 is a water distribution pipe control valve, 24 is a water distribution channel, 25 is natural gravel, 26 is a water distribution gabion, 3 is a wetland filter bed system, 31 is graded broken stone, 32 is functional filler, 33 is a brick partition wall, 4 is a water outlet system, 41 is a water outlet tracery wall, 42 is naturally stacked blockstones, 43 and water outlet gabions, 5 is a wetland plant system, 51 is an emergent aquatic plant, and 52 is a planting substrate.
Detailed Description
Reference is made to the accompanying drawings. The invention provides a multifunctional lake shore ecological wetland system which comprises an internal circulation system 1, a water distribution system 2, a wetland filter bed system 3, a water outlet system 4, a wetland plant system 5 and an operation control system.
The wetland system is arranged at the bay, and can effectively increase the rainwater collecting capacity.
The internal circulation system 1 comprises a circulating water pump 11 and a circulating water pipeline 12. The intake of the circulating water pump 11 is located in a lake area remote from the effluent system.
The water distribution system 2 is arranged at the bank slope of the lake bay. The water distribution system 2 is composed of a water distribution main pipe 21, a water distribution branch pipe 22, a water distribution pipe control valve 23, a water distribution channel 24, a water distribution gabion 26 and natural gravels 25. The water distribution channel 24 uses the bank slope 100 of the lake as a channel wall at one side thereof and plays a role of collecting rainwater at the same time; the other side wall and the bottom of the water distribution channel 24 adopt natural gravel 25, and the water distribution gabion 26 is arranged on the wall of the natural gravel channel and is abutted and supported and shaped.
The wetland filter bed system 3 is composed of a graded broken stone area 31 and a functional filler area 32, and is divided into a plurality of parallel blocks 30 by brick partitions 33. The partition 33 is partitioned from the distribution channel 24 of the distribution system, each wetland filter bed system block is assigned with one section of the distribution channel 24, and each section of the distribution channel is assigned with the distribution branch pipe 22.
The graded crushed stone area 31 is graded from the water distribution gabion 26 towards the lake, and the filler area 32 is closely adjacent to the outer side of the graded crushed stone area 31. The functional filler can be volcanic rock, zeolite, ceramsite and the like.
The water outlet system 4 is composed of a water outlet gabion 43, a water outlet tracery wall 41 and naturally-stacked stones 42. The water outlet gabion 43 is close to the water outlet side of the wetland filter bed system, the filler is protected, the outlet water is homogenized, and the water outlet tracery wall 41 is close to the water outlet side of the water outlet gabion and is uniformly provided with water outlet wall holes 44; the naturally-stacked stone blocks are attached to the outer side of the water outlet tracery wall, the height of the naturally-stacked stone blocks is close to the lake surface, and water is supplied to gaps between the naturally-stacked stone blocks and the lake surface, and the naturally-stacked stone blocks can also be used as fish nests.
The wetland plant system 5 mainly comprises a planting substrate 52 and emergent aquatic plants 51 from bottom to top in sequence. The wetland plant system 5 is positioned at the top of the wetland filter bed system 3, so that the purification capacity of the wetland system is improved, and the wetland plant system is close to a land area, so that a shore area which cannot be utilized originally can be connected with land vegetation, and the ecological landscape of the lake shore is enriched.
The operation control system consists of a circulating water pump switch controller 13 and a water distribution pipeline control valve 23, and the water distribution main pipe 21 and each water distribution branch pipe 22 are provided with the water distribution pipeline control valve 23
The operation mode of the riverway and beach filtration bed wetland system is as follows:
and starting a switch controller 13 of a circulating water pump, enabling the lake water body to enter a wetland filter bed system through a circulating water delivery pipeline 12 and a water distribution system 2 to realize purification and lifting, and enabling wetland effluent to stably converge into the lake water body through a water outlet system 4. Under the normal operation condition, the control valve 23 of the water distribution pipeline is opened, and the lake water uniformly enters the wetland filter bed 3 through the water distribution system 2, so that the water quality purification is realized. Under the condition of maintenance, closing the water distribution pipeline control valve 23 of the water distribution branch pipe 22 corresponding to the wetland filter bed system block, stopping water inflow of the block, maintaining the wetland filter bed system of the block, re-opening the water distribution pipeline control valve corresponding to the wetland filter bed block after the operation is finished, re-entering the lake water body into the wetland filter bed system, and recovering the water body purification function and the lake water body circulation. Under the operating condition of sunny days, the control valve of the water distribution pipeline is opened to start the circulating water pump, and the lake water uniformly enters the wetland filter bed through the water distribution system. Under the operation condition of rainy days, the circulating water pump is closed to suspend the circulation and purification of the lake water body, and the water distribution system mainly collects the peripheral rainwater.
The flow of the internal circulation system 1 can be determined according to the treatment capacity of the wetland filter bed, the volume of the lake water body and the water changing period, and the general water changing period can adopt about one week.
Example 1
Shenzhen is a certain park and lake, the catchment range around the lake mainly comprises an industrial area, a residential area and a square green land, the non-point source pollution is serious, the COD index exceeds five types of water of surface water, the water body mobility is poor, and the algae outbreak phenomenon often occurs. A multifunctional lake shore ecological wetland is constructed by utilizing the lake shore zone, and a part of water in the lake is introduced into the ecological wetland for purification and lifting. Under the operating condition of sunny days, the control valve of the water distribution pipeline is opened to start the circulating water pump, and the lake water uniformly enters the wetland filter bed through the water distribution system, so that the circulation and purification of the lake water are realized. Under the operation condition of rainy days, the circulating water pump is closed to suspend the circulation and purification of the lake water body, the water distribution system mainly collects peripheral rainwater, and the wetland filter bed is utilized to purify and lift the rainwater collected in the peripheral area. The lake area is 5000m2The water depth is 2.5m, two ecological wetlands with the areas of 400m are constructed2And 300m2Total quantity of circulating water is 1200m3The water changing period is 5 days, the water body fluidity is greatly improved, a zero dead angle area in the lake is basically realized through hydraulic model simulation, the lake stably reaches four types of surface water under the working condition of sunny days after the engineering is implemented, the lake stably reaches five types of surface water under the working condition of rainy days, and the algae outbreak phenomenon is basically not generated,
example 2
In a certain villa lake in Shenzhen city, the catchment range of the lake mainly comprises a mountain and a residential area, the pollution degree is low, but the water body fluidity is poor, the water body transparency is low, except for rainwater supply in rainy days, the rest time periods are basically in a static state, algae are easy to breed, particularly, the temperature is high in summer and autumn, and the algae explosion phenomenon is serious. A multifunctional lake shore ecological wetland is constructed by utilizing the space of one corner of a lake in a severe dead water area, and a part of water in the lake is introduced into the ecological wetland for purification and lifting. The lake area 2700m2The water depth is 1.5m, and the area of the constructed ecological wetland is 260m2Under the working condition of fine day, the circulating water volume is 600m3And d, changing water for 7d, and treating peripheral rainwater in rainy days. The ecological wetland is divided into two groups of wetlands by a brick partition wall, and the maintenance and the operation are convenient by controlling the valve through a water distribution pipe control valve. The algae outbreak phenomenon does not appear basically after the engineering is implemented, the lake water quality is stabilized in four types of water of surface water, and the water transparency is obviously improved.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (10)
1. A multifunctional lake shore ecological wetland system is characterized by comprising an internal circulation system, a water distribution system, a wetland filter bed system, a water outlet system, a wetland plant system and an operation control system;
the wetland system is arranged at a bay, wherein the water distribution system is arranged at a bank slope of the bay;
the internal circulation system lifts and conveys the water in the lake to the water distribution system, so that the stability of the water treatment capacity of the ecological wetland system is ensured, and the hydrodynamic force of the water in the lake is improved;
the water distribution system is positioned on one side of the whole wetland system, which is connected with the land area, so that the wetland is ensured to distribute water uniformly, and meanwhile, the peripheral rainwater is collected;
the wetland filter bed system is connected with the water distribution system, and water flows through the wetland filter bed system to be purified and lifted;
the water outlet system is positioned on one side of the whole wetland system connected with the water area, so that the purified water is ensured to stably flow into the lake water and the operation water level of the wetland system;
the wetland plant system is positioned at the top of the wetland filter bed system, so that the wetland purification capacity is improved, and the ecological landscape of the lake shore is enriched;
the operation control system consists of a water taking pump switch controller and a water distribution pipeline control valve.
2. The multifunctional lake shore ecological wetland system as claimed in claim 1, wherein the internal circulation system is composed of a circulating water pump and a circulating water delivery pipeline, and a water intake of the circulating water pump is positioned in a lake area far away from the water outlet system.
3. The multifunctional lake shore ecological wetland system according to claim 1, wherein the water distribution system is composed of water distribution main pipes, water distribution branch pipes, water distribution channels, water distribution gabions and natural gravels; the water distribution channel takes a bank slope as a channel wall at one side of the water distribution channel and plays a role of collecting rainwater at the same time; the other side canal wall and the canal bottom of the water distribution canal adopt natural gravels, and the water distribution gabion is arranged on the natural gravels canal wall to abut and support and shape the natural gravels canal wall.
4. The multifunctional lake shore ecological wetland system as claimed in claim 1, wherein the wetland filter bed system is composed of graded crushed stone areas and functional filler areas.
5. The multifunctional lake shore ecological wetland system as recited in claim 1, wherein the effluent system is composed of an effluent gabion, an effluent tracery wall and naturally stacked rock blocks; the water outlet gabion is close to the water outlet side of the wetland filter bed system, the filler is protected, the outlet water is homogenized, and the water outlet tracery wall is close to the water outlet side of the water outlet gabion and is uniformly provided with water outlet wall holes; the naturally-stacked rock blocks are attached to the outer side of the water outlet tracery wall, and the height of the naturally-stacked rock blocks is close to the surface of the lake.
6. The multifunctional lake shore ecological wetland system as claimed in claim 1, wherein one or more partition walls are provided to divide the wetland filter bed system into a plurality of parallel blocks, the partition walls are separated from the water distribution channels of the water distribution system, each wetland filter bed system block is assigned with one section of water distribution channel, and each section of water distribution channel is assigned with a water distribution branch pipe.
7. The multi-functional lake shore ecological wetland system of claim 1, wherein the wetland filter bed system is arranged in the shallow water area near the lake bay.
8. The operation method of the multi-functional lakeshore ecological wetland system of claim 1, which is characterized by comprising the following steps: and starting a switch controller of the circulating water pump, enabling the lake water body to enter the wetland filter bed system through the internal circulating water delivery pipeline and the water distribution system to realize purification and lifting, and enabling the wetland effluent to stably converge into the lake water body through the water outlet system.
9. The operation method of claim 8, wherein one or more partition walls are arranged to divide the wetland filter bed system into a plurality of parallel blocks, the partition walls are partitioned from a water distribution channel of the water distribution system, each wetland filter bed system block is assigned with a section of water distribution channel, and each section of water distribution channel is assigned with a water distribution branch pipe;
the water inflow of different blocks of the wetland filter bed system can be controlled and adjusted through the water distribution pipeline control valve;
under the condition of maintenance, closing the water distribution pipeline control valve corresponding to the wetland filter bed system block, stopping water inflow of the block, maintaining the wetland filter bed system block, re-opening the water distribution pipeline control valve corresponding to the wetland filter bed system block after the maintenance work is finished, and re-entering the lake water body into the wetland filter bed system to recover the water body purification function and the lake water body circulation.
10. The operation method of claim 8, wherein under the operation condition of fine weather, the control valve of the water distribution pipeline is opened to start the circulating water pump, and the lake water uniformly enters the wetland filter bed system through the water distribution system to realize the circulation and purification of the lake water; under the operation condition of rainy days, the circulating water pump is closed to suspend the circulation and purification of the lake water body, the water distribution system mainly collects peripheral rainwater, and the wetland filter bed system is utilized to purify and lift the rainwater collected in the peripheral area.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993579A (en) * | 2014-05-26 | 2014-08-20 | 天津大学 | Riverside ecological multi-dimensional circulating type wet land slow-flow infiltration pollutant intercepting system |
| WO2018113279A1 (en) * | 2016-12-23 | 2018-06-28 | 深圳市碧园环保技术有限公司 | Constructed wetland for use in circulating purification of landscape water body |
| CN209065542U (en) * | 2018-10-29 | 2019-07-05 | 北京东方利禾景观设计有限公司 | A kind of tableland formula artificial wet land treating system |
| CN213865582U (en) * | 2020-09-07 | 2021-08-03 | 中国电建集团华东勘测设计研究院有限公司 | Multifunctional lake shore ecological wetland system |
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2020
- 2020-09-07 CN CN202010926992.6A patent/CN114149081A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993579A (en) * | 2014-05-26 | 2014-08-20 | 天津大学 | Riverside ecological multi-dimensional circulating type wet land slow-flow infiltration pollutant intercepting system |
| WO2018113279A1 (en) * | 2016-12-23 | 2018-06-28 | 深圳市碧园环保技术有限公司 | Constructed wetland for use in circulating purification of landscape water body |
| CN209065542U (en) * | 2018-10-29 | 2019-07-05 | 北京东方利禾景观设计有限公司 | A kind of tableland formula artificial wet land treating system |
| CN213865582U (en) * | 2020-09-07 | 2021-08-03 | 中国电建集团华东勘测设计研究院有限公司 | Multifunctional lake shore ecological wetland system |
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