CN114149082A - Multifunctional lake shore stepped drop wetland system and operation method - Google Patents
Multifunctional lake shore stepped drop wetland system and operation method Download PDFInfo
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Abstract
The invention discloses a multifunctional lake shore step drop wetland system and an operation method, wherein the system comprises a balance water replenishing system, an internal circulation system, a step wetland system, a wetland plant system and an operation control system; the cascade wetland system comprises a multistage wetland system with the height gradually reduced, and water to be purified flows down gradually and flows through the multistage wetland system. Each level of wetland system comprises a water distribution system, a wetland filter bed system and a water outlet system. The balance water replenishing system ensures the stability of the lake water body. By constructing the multifunctional lake shore stepped drop wetland system, the invention realizes the circulation and purification promotion of ecological water supply, peripheral rainwater and lake water by utilizing the lake shore space, enriches the ecological landscape and habitat heterogeneity of the lake shore, overcomes the problems of single function and poor ecological landscape suitability of the traditional bypass purification measures, and further improves the adaptability and application range of the artificial wetland technology.
Description
Technical Field
The invention relates to a multifunctional lake shore step drop wetland system and an operation method thereof, belonging to the technical field of water body ecological purification.
Background
The artificial wetland technology mainly utilizes a filler matrix, microorganisms and wetland plants in the system composition to purify and lift the water body. The artificial wetland has the characteristics of low investment, flexible design and application, simple and convenient operation and management and high environmental ecological value, and is widely applied to the ecological purification of water bodies in different areas and fields. At present, in the process of guaranteeing the water body lifting of urban lakes, the artificial wetland is gradually applied and paid attention as a mode of improving the water quality of the water body by using an ecological strengthening and purifying measure, and the constructed coastal artificial wetland can effectively guarantee the water quality of the lake body.
Through the application of the engineering case to the existing lake water quality artificial wetland at home and abroad, the existing artificial wetland technology has single function and can not effectively give consideration to other functions such as lake water hydrodynamic improvement, rainwater purification and the like.
Disclosure of Invention
The invention provides a multifunctional lake shore stepped drop wetland system, which is applied to lake shore with the characteristic that land terrain is sloping land, and is used for circulating, purifying and improving water in lakes and ecologically replenishing water, collecting and treating rainwater, enriching ecological landscapes and habitat heterogeneity of the lake shore, overcoming the problems of single function and poor ecological landscape suitability of the traditional bypass purification measures and further improving the adaptability and application range of the artificial wetland technology.
In order to realize the purpose, the invention adopts the following technical scheme:
the multifunctional lake shore step-drop wetland system is characterized by comprising a balance water replenishing system, an internal circulation system, a step wetland system, a wetland plant system and an operation control system;
the stepped wetland system comprises a multi-stage wetland system with the height gradually reduced, water flows through the stepped wetland system step by step to be purified and lifted, and each stage of wetland system comprises a water distribution system, a wetland filter bed system and a water outlet system;
the water inlet end of the balance water replenishing system is connected with a tail water system of the urban sewage treatment plant, the water outlet end of the balance water replenishing system is connected with a water distribution system of the primary wetland system, and tail water of the urban sewage treatment plant is utilized to perform ecological water replenishing on the lake so as to ensure that the water level of the lake is balanced and stable;
the internal circulation system lifts and conveys the water in the lake to a water distribution system of the first-stage wetland system, so that the stability of the treated water quantity of the stepped drop wetland system is ensured, and the hydrodynamic force of the water in the lake is improved;
the first-stage wetland system is positioned on a bank slope, and the water distribution system of the first-stage wetland system is positioned at the innermost side of the whole wetland system in a land area, so that the water supply system and the internal circulation system can uniformly distribute water, and meanwhile, the peripheral rainwater is collected; the water outlet system of the last stage of wetland system is positioned at one side of the whole wetland system connected with the water area, so that the purified water body is ensured to stably flow into the lake water body;
the wetland plant system is positioned at the top of each level of wetland of the stepped wetland system, so that the purification capacity of the wetland is improved, and the ecological landscape of the lake shore is enriched;
the operation control system comprises a water taking pump switch controller, a water distribution pipeline control valve and a water replenishing 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 balance water supplementing system comprises a water supplementing main pipe, a water supplementing branch pipe, a flow regulating and pressure regulating valve and a flowmeter.
The internal circulation system comprises a circulating water pump and a circulating water delivery pipe, 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 of the first-stage wetland system comprises a water distribution main pipe, water distribution branch pipes, a water distribution channel, a water distribution gabion and natural gravels; the water distribution system of the wetland system except the first-stage wetland system comprises a water distribution channel, a water distribution gabion and natural gravels; the water distribution system water distribution channel of the next-stage wetland system is connected with the water outlet system of the previous-stage wetland system to receive the outlet water of the previous-stage wetland system.
The wetland filter bed system of each level of wetland system consists of a graded broken stone area and a functional filler area; wherein, the grading direction of graded broken stone district is for the higher grade in the vertical direction joins in marriage, and the functional packing district sets up the downstream side in graded broken stone district.
The water outlet system consists of a gabion net cage filled with gravel and a pine pile.
The stepped wetland system is characterized in that one or more partition walls are arranged to divide the stepped wetland system into a plurality of parallel blocks, the partition walls start to separate from a water distribution system water distribution channel of a first-stage wetland system and extend to a wetland filter bed system of a last-stage wetland system, the water distribution system of the first-stage wetland system of each wetland 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 and a water supplement branch pipe.
The second purpose of the invention is to provide an operation method of the multifunctional lake shore stepped drop wetland system. Therefore, the invention adopts the following technical scheme:
the method comprises the following steps: and starting a switch controller of a circulating water pump, enabling the lake water body to enter the stepped wetland system through the circulating water delivery pipeline and the water distribution system of the first-stage wetland system to realize purification and lifting, and enabling wetland effluent to stably flow into the lake water body through the water outlet system of the last-stage wetland system.
Furthermore, the water inflow of different blocks of the stepped wetland system is controlled and adjusted through a water distribution pipeline control valve; and under the condition of maintenance, closing the water distribution pipeline control valve and the water replenishing pipeline control valve corresponding to the wetland system block, stopping water inflow of the block, performing maintenance on the wetland system block, restarting the water distribution pipeline control valve corresponding to the wetland system block after the maintenance work is finished, and enabling the lake water to reenter the wetland system block.
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 step wetland system through the water distribution system to realize circulation and purification of the lake water; when the water level of the lake water body is obviously reduced, a water supplementing pipeline control valve needs to be opened, the water supplementing quantity is controlled by adjusting a flow regulating and pressure regulating valve of the water supplementing pipeline, and the water supplementing pipeline control valve is closed after the normal water level of the lake is recovered; under the operation working 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 water distribution channel of the first-stage wetland system collects the peripheral rainwater, and the collected rainwater is purified and lifted by the stepped wetland system. Therefore, under the operating condition of fine days, 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, and the improvement on the water quality and the hydrodynamic force of the lake water is continuously and stably kept; in addition, can further purify the improvement to the sewage factory tail water moisturizing of balanced water charging system. Under the operating 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 rainwater collected in the peripheral area is effectively purified and lifted by utilizing the stepped wetland. Realizes the conversion of different functions of the stepped wetland and fully exerts the purification function of the wetland.
In conclusion, the multifunctional lake shore stepped drop wetland system and the operation method provided by the invention can be applied to lake shore with land terrain being a sloping field, and by utilizing the current situation of lake shore height difference terrain, comprehensive functions of lake water purification, hydrodynamic improvement, rainwater purification, lake ecological landscape improvement and the like can be taken into consideration, circulation and purification improvement can be performed on the water in the lake, rainwater can be collected and treated, the lake shore ecological landscape and the habitat heterogeneity can be enriched, the problems of single function and poor ecological landscape suitability of the traditional bypass purification measures can be overcome, and the adaptability and the application range of the artificial wetland technology can be further improved. In addition, the wetland system of the invention can effectively utilize the sloping field which is difficult to be utilized at the periphery of the lake bank through the stepped wetland system, and better fuses the top plant system with the peripheral environment through the stepped characteristic, thereby better collecting rainwater and more uniformly purifying the treated water. The invention is particularly suitable for small lakes with small area, sloping land of curved lake bank and difficult recovery of ecosystem due to easy damage, such as lakes in city parks and lakes in residential districts.
Drawings
FIG. 1 is a plan view of the multifunctional lake shore stepped drop wetland system of the invention;
FIG. 2 is a sectional view of the multifunctional lake shore stepped hydraulic drop wetland system of the invention;
Detailed Description
Reference is made to the accompanying drawings. The multifunctional lake shore step-drop wetland system provided by the invention comprises a balance water replenishing system 1, an internal circulation system 2, a step wetland system 4, a wetland plant system 6 and an operation control system.
The stepped drop wetland system is arranged at the lake bay and is arranged from the high position of the sloping field of the lake bay to the surface of the lake bay, so that the rainwater collecting capacity can be effectively improved, and the rainwater collecting system can be fused with the surrounding environment. In the area where the stepped drop wetland system is arranged, the surface land is replaced by clay 300, and the thick bottom of the clay 300 can be 300 mm.
The stepped wetland system 4 comprises a two-stage wetland system with the height gradually reduced, the first-stage wetland system 100 is arranged above the second-stage wetland system 200, water to be purified flows through the wetland systems step by step to obtain purified water and improve the water quality, and each stage of wetland system comprises a water distribution system, a wetland filter bed system and a water outlet system. The treatment capacity of each level of wetland system is approximately the same, and a proper microbial community can be constructed for water bodies with different concentrations and characteristic pollutants.
The balance water supplementing system 1 comprises a water supplementing main pipe 11, water supplementing branch pipes 12, a flow regulating and pressure regulating valve 13, a flow meter 14 and a water supplementing pipeline control valve 15, wherein the water inlet ends of the water supplementing main pipes 11 are connected with a tail water system of a town sewage treatment plant, the water outlet ends of the water supplementing branch pipes 12 are connected with a water distribution system 3A of a primary wetland system, and tail water of the town sewage treatment plant is used for ecologically supplementing water to lakes to ensure that the water level of the lakes is balanced and stable;
the internal circulation system comprises a circulating water pump 21 and a circulating water delivery pipe 22. The water intake of the circulating water pump 11 is positioned in the lake area far away from the water outlet system of the final-stage wetland system.
The water distribution system of the first-stage wetland system 100 comprises a water distribution trunk pipe 31, water distribution branch pipes 32, a water distribution channel 36A, a water distribution gabion 34 and natural gravels 35, wherein the natural gravels 35 are paved at the bottom of the water distribution channel 36A, the side wall of the land area of the water distribution channel 36A is an original bank slope, the other side wall of the land area of the water distribution channel 36A is the water distribution gabion 34, and the water distribution branch pipes 32 and the water supplement branch pipes 12 are all communicated into the water distribution channel 36A; the water distribution system of the second-stage wetland system 200 comprises a water distribution channel 36B, a water distribution gabion 34 and natural gravels 35; the water distribution system water distribution channel 36B of the second-stage wetland system 200 is connected with the water outlet system of the previous-stage wetland system to receive the outlet water of the previous-stage wetland system, the side wall of the water distribution channel of the other stages of wetland systems except the first-stage wetland system is the water outlet gabion of the previous-stage wetland system, the side wall of the other side is the water distribution gabion, and the natural gravel is laid at the bottom.
The wetland filter bed system of each level of wetland system consists of a graded crushed stone area 41 and a functional filler area 42; wherein, the grading direction of the graded crushed stone area 41 is in a superior grading in the vertical direction, the upper crushed stone particles are large, the lower crushed stone particles are lower, and the functional filler area 42 is arranged at the downstream side of the graded crushed stone area 41. The functional filler can be volcanic rock, zeolite, ceramsite and the like.
The water outlet system consists of a water outlet gabion 51 filled with gravel and pine piles 52, the water outlet gabion is positioned by the pine piles 52, the two sides of the water distribution gabion 34 can also be positioned by the pine piles 52, and the original bank slope canal wall of the water distribution canal 36A of the first-stage wetland system can also be supported by the pine piles 52.
The stepped wetland system 4 is provided with a partition wall 33 to divide the stepped wetland system into two parallel blocks, the partition wall 43 is arranged from a water distribution system water distribution channel 36A of the first-stage wetland system to extend to a wetland filter bed system of the second-stage wetland system, the water distribution system of the first-stage wetland system of each wetland system block is provided with a section of water distribution channel 36A, and each section of water distribution channel is respectively provided with a water distribution branch pipe 32 and a water supplement branch pipe 12.
The wetland plant system 6 mainly comprises a planting substrate 61 and emergent aquatic plants 62 from bottom to top in sequence. The wetland plant system 6 is positioned at the top of the wetland filter bed system 3, so that the purification capacity of the wetland system is improved, and by the volume arrangement of the wetland system, the hydraulic flow capacity of the wetland filter bed is increased, and meanwhile, wetland plants on the wetland filter bed can be better connected with land plants, so that the ecological landscape of the lake shore is enriched.
The operation control system comprises a water taking pump switch controller, a water distribution pipeline control valve 33 and a water replenishing pipeline control valve 15.
The operation mode of the multifunctional lake shore stepped hydraulic wetland system is as follows:
a multifunctional lake shore stepped hydraulic drop wetland system is constructed as shown in figure 1. And a basic operation control step, starting a switch controller of a circulating water pump, enabling the lake water body to enter a stepped wetland system through a circulating water conveying pipeline, a water distribution main pipe and a water distribution branch pipe to realize purification and lifting, and enabling wetland effluent to stably flow into the lake water body through an effluent system of a second-stage wetland system. The water inflow of different blocks of the stepped wetland system can be controlled and adjusted through the water distribution pipeline control valve. And under the condition of maintenance, closing the water distribution pipeline control valve corresponding to the wetland filter bed block, stopping water inflow of the block, maintaining the wetland filter bed system, 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 into the wetland filter bed system, and recovering the water purification function and the lake water 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 step wetland system through the main water distribution pipe and the branch water distribution pipe, so that the circulation and purification of the lake water are realized. In addition, when the water level of the lake water body is obviously reduced, the control valve of the water replenishing pipeline needs to be opened, the flow regulating and pressure regulating valve of the water replenishing pipeline is regulated to control the water replenishing amount, and the control valve of the water replenishing pipeline is closed after the normal water level of the lake is recovered. 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 rainwater collected in the peripheral area is purified and lifted by utilizing the stepped wetland.
Example 1
A small lake pond in a Shenzhen certain street jurisdiction area has a water area of about 5 ten thousand hectares, a local bank slope space is limited, and the slope and the height difference are large. The lake is mainly a residential area, and the peripheral area of the lake is matched with basic leisure facilities, so that the peripheral residents can conveniently perform leisure activities. The lake water mainly takes rainfall catchment around the rainy season, and the continuous and stable water supply is lack and is relatively closed. The water level is obviously reduced in dry seasons, so that the phenomenon of falling zones of the lake bank is caused to a certain extent. By constructing a multifunctional lake shore stepped drop wetland system, the area is about 2000 square meters, and the internal circulation purification and hydrodynamic improvement are carried out on the lake water body. Meanwhile, the tail water of the sewage plant is utilized to solve the problem of water level reduction of the lake in dry seasons, so that the water level is ensured to be basically stable, and the formation of a falling zone is inhibited. Rainwater collected in the peripheral area of the lake in rainy season can be purified through the shore stepped drop wetland, and the water pollution load of the lake is reduced. The water quality of the lake water body is obviously improved, and the living environment of surrounding residents is further improved.
Example 2
A small artificial lake in the park of a certain design company in Hangzhou city has a water area of about 5000 square meters. The main leisure footpath around the lake is convenient for the staff of the company to do daily leisure activities. The lake water mainly takes rain catchment in rainy seasons of the garden as a main part, and is relatively closed due to lack of continuous and stable water supply. The water level is obviously reduced in dry seasons, so that the phenomenon of falling zones of the lake bank is caused to a certain extent. By constructing a multifunctional lake shore stepped drop wetland system, the area is about 400 square meters, and the internal circulation purification and hydrodynamic improvement are carried out on the lake water body. Rainwater collected in the rain season park can be purified through the shores and the stepped drop wetland, and the water pollution load of the lake is reduced. The water quality of the lake water body is remarkably improved, the ecological health system construction of the lake water body is promoted, the ecological landscape of the garden is enriched, and the working and living environment of the staff of a company is 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 step drop wetland system is characterized by comprising a balance water replenishing system, an internal circulation system, a step wetland system, a wetland plant system and an operation control system;
the cascade wetland system comprises a multistage wetland system with the height gradually reduced, water to be purified flows down step by step and is purified and lifted by passing through each stage of wetland system, and each stage of wetland system comprises a water distribution system, a wetland filter bed system and a water outlet system;
the water inlet end of the balance water replenishing system is connected with a tail water system of the urban sewage treatment plant, the water outlet end of the balance water replenishing system is connected with a water distribution system of the primary wetland system, and tail water of the urban sewage treatment plant is utilized to perform ecological water replenishing on the lake so as to ensure that the water level of the lake is balanced and stable;
the internal circulation system lifts and conveys the water in the lake to a water distribution system of the first-stage wetland system, so that the stability of the treated water quantity of the stepped drop wetland system is ensured, and the hydrodynamic force of the water in the lake is improved;
the first-stage wetland system is positioned on a bank slope, and the water distribution system of the first-stage wetland system is positioned at the innermost side of the whole wetland system in a land area, so that the water supply system and the internal circulation system can uniformly distribute water, and meanwhile, the peripheral rainwater is collected; the water outlet system of the last stage of wetland system is positioned at one side of the whole wetland system connected with the water area, so that the purified water body is ensured to stably flow into the lake water body;
the wetland plant system is positioned at the top of each level of wetland of the stepped wetland system, so that the purification capacity of the wetland is improved, and the ecological landscape of the lake shore is enriched;
the operation control system comprises a water taking pump switch controller, a water distribution pipeline control valve and a water replenishing pipeline control valve.
2. The multifunctional lake shore step-drop wetland system of claim 1, wherein the balance water replenishing system comprises a water replenishing main pipe, a water replenishing branch pipe, a flow regulating and pressure regulating valve and a flow meter.
3. The multifunctional lake shore stepped drop wetland system as recited in claim 1, wherein the internal circulation system comprises a circulating water pump and a circulating water delivery pipe, and a water intake of the circulating water pump is positioned in a lake area far away from the water outlet system.
4. The multifunctional lake shore stepped drop wetland system according to claim 1, wherein the water distribution system of the first-stage wetland system comprises water distribution trunk pipes, water distribution branch pipes, water distribution channels, water distribution gabions and natural gravels; the water distribution system of the wetland system except the first-stage wetland system comprises a water distribution channel, a water distribution gabion and natural gravels; the water distribution system water distribution channel of the next-stage wetland system is connected with the water outlet system of the previous-stage wetland system to receive the outlet water of the previous-stage wetland system.
5. The multifunctional lake shore step-fall wetland system according to claim 1, wherein the wetland filter bed system of each wetland system is composed of graded crushed stone areas and functional filler areas; wherein, the grading direction of graded broken stone district is for the higher grade in the vertical direction joins in marriage, and the functional packing district sets up the downstream side in graded broken stone district.
6. The multifunctional lake shore stepped hydraulic drop wetland system as recited in claim 1, wherein the water outlet system consists of gabion cages filled with gravel and pine piles.
7. The multifunctional lake shore stepped drop wetland system according to claim 1, wherein one or more partition walls are arranged to divide the stepped wetland system into a plurality of parallel blocks, the partition walls extend from the water distribution system water distribution channel of the first-stage wetland system to the wetland filter bed system of the last-stage wetland system, the water distribution system of the first-stage wetland system of each wetland system block is provided with a section of water distribution channel, and each section of water distribution channel is provided with a water distribution branch pipe and a water supplement branch pipe respectively.
8. The operation method of the multifunctional lake shore stepped drop wetland system of claim 1 is characterized by comprising the following steps: and starting a switch controller of a circulating water pump, enabling the lake water body to enter the stepped wetland system through the circulating water delivery pipeline and the water distribution system of the first-stage wetland system to realize purification and lifting, and enabling wetland effluent to stably flow into the lake water body through the water outlet system of the last-stage wetland system.
9. The operation method of claim 8, wherein one or more partition walls are arranged to divide the stepped wetland system into a plurality of parallel blocks, the partition walls extend from a water distribution system water distribution channel of the first-stage wetland system to a wetland filter bed system of the last-stage wetland system, the water distribution system of the first-stage wetland system of each wetland system block is associated with a section of water distribution channel, and each section of water distribution channel is respectively associated with a water distribution branch pipe and a water supplement branch pipe;
the water inflow of different blocks of the stepped wetland system is controlled and adjusted through a water distribution pipeline control valve;
and under the condition of maintenance, closing the water distribution pipeline control valve and the water replenishing pipeline control valve corresponding to the wetland system block, stopping water inflow of the block, performing maintenance on the wetland system block, restarting the water distribution pipeline control valve corresponding to the wetland system block after the maintenance work is finished, and enabling the lake water to reenter the wetland system block.
10. The operation method according to claim 8, characterized in that under the operation condition of fine days, the control valve of the water distribution pipeline is opened to start the circulating water pump, and the lake water uniformly enters the step wetland system through the water distribution system to realize the circulation and purification of the lake water; when the water level of the lake water body is obviously reduced, a water supplementing pipeline control valve needs to be opened, the water supplementing quantity is controlled by adjusting a flow regulating and pressure regulating valve of the water supplementing pipeline, and the water supplementing pipeline control valve is closed after the normal water level of the lake is recovered; under the operation working 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 water distribution channel of the first-stage wetland system collects the peripheral rainwater, and the collected rainwater is purified and lifted by the stepped wetland system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114644402A (en) * | 2022-03-23 | 2022-06-21 | 中国电建集团华东勘测设计研究院有限公司 | Urban high-density built-up area lake and pond wetland system based on split system |
| CN115947459A (en) * | 2023-03-13 | 2023-04-11 | 湖南博世科环保科技有限公司 | Self-circulation ecological purification system constructed by closed water body |
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| CN203845855U (en) * | 2014-04-28 | 2014-09-24 | 农业部沼气科学研究所 | Water distribution device of manual rapid infiltration system |
| CN107804912A (en) * | 2017-10-26 | 2018-03-16 | 贵州师范大学 | A kind of method and wet land system for recovering cultivation wetland using sewage treatment plant tail water |
| CN107935185A (en) * | 2017-11-20 | 2018-04-20 | 河海大学 | A kind of step artificial wet land system for being used to improve water quality |
| 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 |
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| CN203845855U (en) * | 2014-04-28 | 2014-09-24 | 农业部沼气科学研究所 | Water distribution device of manual rapid infiltration system |
| CN107804912A (en) * | 2017-10-26 | 2018-03-16 | 贵州师范大学 | A kind of method and wet land system for recovering cultivation wetland using sewage treatment plant tail water |
| CN107935185A (en) * | 2017-11-20 | 2018-04-20 | 河海大学 | A kind of step artificial wet land system for being used to improve water quality |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114644402A (en) * | 2022-03-23 | 2022-06-21 | 中国电建集团华东勘测设计研究院有限公司 | Urban high-density built-up area lake and pond wetland system based on split system |
| CN115947459A (en) * | 2023-03-13 | 2023-04-11 | 湖南博世科环保科技有限公司 | Self-circulation ecological purification system constructed by closed water body |
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