CN219991310U - Pool system for reducing non-point source pollution - Google Patents
Pool system for reducing non-point source pollution Download PDFInfo
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- CN219991310U CN219991310U CN202321249181.2U CN202321249181U CN219991310U CN 219991310 U CN219991310 U CN 219991310U CN 202321249181 U CN202321249181 U CN 202321249181U CN 219991310 U CN219991310 U CN 219991310U
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a pond warehouse system for reducing non-point source pollution, which comprises at least four biological ponds which are sequentially arranged side by side, wherein each biological pond is an oxidation pond of different types; the two ends of each biological pond are respectively and fixedly provided with a water inlet and an overflow weir, the water inlet of each biological pond is adjacent to the overflow weir of the adjacent biological pond, the water inlet of each biological pond is communicated with the overflow weir of the adjacent biological pond through a diversion channel, the water inlet of each biological pond is flush with the pond bottom of the current biological pond, and the overflow weir of each biological pond is flush with the pond surface of the current biological pond; the biological pond at the starting end is communicated with an external water source to be treated, and the biological pond at the tail end is communicated with an external water terminal to be used; sequentially reducing the elevation values of the pond surfaces of all biological ponds from the starting end to the tail end by a first preset difference value; the elevation values of the pond bottom of all the biological ponds are sequentially increased from the initial end to the tail end by a second preset difference value. The utility model has high purification efficiency and long service life.
Description
Technical Field
The utility model relates to the technical field of environmental treatment, in particular to a pool system for reducing non-point source pollution.
Background
In recent years, with the increase of urban population and tourist population along river along lake and the rapid development of economy, natural water quality has a decreasing trend (for example, from class I to class II, from class II to class III, etc.), and the current cleaning of water quality of water body mainly adopts an economic structure optimized by a river basin and a coastal circular lake sewage interception treatment system, so that effective collection of farmland and village non-point sources cannot be ensured. The agricultural non-point source pollution is an important source of water environment pollution, and agricultural irrigation tail water, rural domestic sewage and distributed livestock and poultry cultivation wastewater are directly discharged into rural irrigation and drainage ditches without treatment or are collected into water bodies of receiving river channels and lakes through a surface runoff process to cause organic pollution of water bodies, eutrophication and the like.
The Chinese patent 201910333637.5-ecological pond system for preventing and controlling agricultural non-point source pollution discloses an ecological pond system for preventing and controlling agricultural non-point source pollution, which comprises an ecological ditch, overflow weirs, an ecological pond, connecting ditches and a filling and draining pump station, wherein the ecological ditch is arranged between farmlands, the overflow weirs are arranged at the downstream of the ecological ditch, the ecological pond is arranged at the two sides of the ecological ditch, the upstream of the ecological pond is connected with the ecological ditch by utilizing a first connecting ditch, the front tanks of the pumping stations of the ecological pond and the filling and draining pump station are connected by utilizing a second connecting ditch, and the filling and draining pump station is positioned at the downstream or the rear end of the ecological pond. The patent performs deep digging and planting treatment on the current ditches and pits, deepens the depths of the ditches and the pits and plants aquatic plants, and fixes the shape of the pits through hexagonal prefabricated slope protection. The purifying effect of the patent is just related to the occupied area, depth and the number of aquatic plants of the pit, and the process flow is single, so that the pollutant treatment mode in the polluted water source is single, and the purifying effect of the patent is not ideal.
Disclosure of Invention
The utility model mainly aims to provide a pool system for reducing non-point source pollution, so as to solve the problems that the prior art has single process flow, and the pollutant treatment mode in a polluted water source is single, so that the purifying effect of the patent is not ideal.
In order to achieve the above object, the present utility model provides the following technical solutions:
a pond system for reducing non-point source pollution, the pond system comprising at least four biological ponds arranged side by side in sequence, each biological pond being a different type of oxidation pond;
the two ends of each biological pond are respectively and fixedly provided with a water inlet and an overflow weir, the water inlet of each biological pond is adjacent to the overflow weir of the adjacent biological pond, the water inlet of each biological pond is communicated with the overflow weir of the adjacent biological pond through a diversion channel, the water inlet of each biological pond is flush with the pond bottom of the current biological pond, and the overflow weir of each biological pond is flush with the pond surface of the current biological pond;
the biological pond at the starting end is communicated with an external water source to be treated, and the biological pond at the tail end is communicated with an external water terminal to be used;
sequentially reducing the elevation values of the pond surfaces of all biological ponds from the starting end to the tail end by a first preset difference value;
the elevation values of the pond bottoms of all the biological ponds are sequentially increased from the starting end to the tail end by a second preset difference value.
As a further improvement of the utility model, each diversion channel comprises a water distribution channel and a water collecting channel communicated with the water distribution channel, each water distribution channel is communicated with an overflow weir of the current biological pond, and each water collecting channel is communicated with a water inlet of the next biological pond; the water body in each biological pond overflows into the distribution canal through the overflow weir, and the distribution canal guides the water body to the water collecting canal and further guides the water body to the pond bottom of the next biological pond through the water inlet.
As a further improvement of the utility model, each biological pond comprises a first weight slope protection and a second weight slope protection opposite to the first weight slope protection, and the gradients of all the first weight slope protection and all the second weight slope protection are the same.
As a further improvement of the utility model, one end of each first ballast slope adjacent to the pond surface of the current biological pond is fixedly provided with a plurality of first fixed anchor rods, and each first fixed anchor rod penetrates through the current first ballast slope and is grounded; one end of each second ballast slope adjacent to the pond surface of the current biological pond is fixedly provided with a plurality of second fixed anchor rods, and each second fixed anchor rod penetrates through the current second ballast slope and is grounded.
As a further improvement of the utility model, an impermeable layer is respectively and fixedly paved between the first and second ballast protection slopes of each biological pond, and each impermeable layer sequentially comprises a plain soil layer, a crushed stone cushion layer, a leveling layer, a geomembrane and a planting soil ballast layer from the bottom of the current biological pond to the surface of the current biological pond.
As a further improvement of the utility model, a plurality of plant-growing bags are paved on the slope surfaces of all the first weight slope protection and the slope surfaces of all the second weight slope protection.
As a further improvement of the utility model, each biological pond is respectively communicated with a water pumping port, each water pumping port is fixedly provided with a check valve, each water pumping port is respectively communicated with an external pump body through a water pumping pipeline, and each water pumping port is positioned at a preset depth in the current biological pond.
As a further improvement of the utility model, each water inlet is fixedly provided with a trash rack, and the diameters of all trash racks are sequentially reduced from the starting end to the tail end by a third preset difference value.
The utility model ensures that smaller occupied area is realized under the same condition by at least four side-by-side biological ponds which are sequentially connected in a serpentine manner; the types of each biological pond are different (such as an aerobic pond, a facultative pond, an anaerobic pond, an aquatic plant pond and the like), and the pond height and the pond depth of each biological pond are set according to a certain rule, so that the pond height of each biological pond is gradually decreased, water can flow through each biological pond in sequence under the action of gravity, the pond depth of each biological pond is sequentially decreased, and long-acting purification arrangement conditions are provided for anaerobic conditions, facultative conditions and aerobic conditions, thereby ensuring the purification efficiency and the service life of the pond warehouse system.
Drawings
FIG. 1 is a schematic top view of one embodiment of a pool system for reducing non-point source contamination according to the present utility model;
FIG. 2 is a schematic top view of one embodiment of a pool system for reducing non-point source contamination according to the present utility model;
FIG. 3 is a structural top view of one embodiment of a pool system for reducing non-point source contamination of the present utility model;
FIG. 4 is a schematic diagram illustrating a schematic diagram of a pool system for reducing non-point source pollution according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram illustrating a schematic diagram of a pool system for reducing non-point source contamination in a front view according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram illustrating a top view of one embodiment of a pool system for reducing non-point source contamination in accordance with the present utility model;
reference numerals (in the first order of occurrence): 1. an anaerobic pond; 2. a facultative pond; 3. an aerobic pond; 4. an aquatic plant pond; 5. a water inlet; 6. an overflow weir; 7. a diversion trench; 71. a distribution canal; 72. a water collecting channel; 8. a first ballast slope protection; 9. a second ballast slope protection; 81. a first fixed anchor rod; 91. a second fixed anchor rod; 10. an impermeable layer; 11. a plant growing bag; 12. a water pumping port; 13. a check valve; 14. and a water pumping pipeline.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," and "third" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
As shown in fig. 1, the present embodiment provides a pool system for reducing non-point source pollution, where the pool system includes at least four biological ponds, each of which is a different type of oxidation pond, side by side in sequence.
Preferably, the present embodiment preferably has four biological ponds, one for each type of biological pond; for the application scene with serious non-point source pollution, the number of each type of biological pond can be increased.
Preferably, the four biological ponds include a side-by-side anaerobic pond 1 (alternatively referred to as a plant-oxidation pond), a facultative pond 2, an aerobic pond 3, and an aquatic plant pond 4.
Among them, the anaerobic pond 1 has a deep pond depth of generally 2.0m and above, and the deepest can reach 45m, and the preferred embodiment is 2m. The anaerobic pond 1 has higher organic load, and the oxygen amount required by organic matter degradation exceeds the oxygen amount provided by photosynthesis and atmospheric reoxygenation, so that the anaerobic pond 1 presents an anaerobic state. The organic load of the anaerobic pond 1 can reach 40g-100gBOD 5 /(m 3 D), typically a small footprint. The main biochemical reactions of the anaerobic pond 1 are acidogenic fermentation and methanogenesis, so that the anaerobic pond 1 generates stink, the environmental condition is poor, and the effluent after treatment can not meet the emission requirement. The anaerobic pond 1 is generally used for sewage BOD5>300mg/L is usually placed at the initial end of the pool system, and is usually used as a pretreatment link in the pool system and is matched with a facultative pool2 and the aerobic pond 3 are combined to operate, and the functions of the combined operation are to remove organic matters by utilizing the characteristic of high efficiency and low consumption of anaerobic reaction, so that the effective operation of the subsequent pond is ensured.
Among them, the facultative pond 2 is the most widely used one, and the pond depth is 1.0m to 2.0m, and the preferred embodiment is 1.5m. The part of the upper layer sunlight of the facultative pond 2, which can enter the pond, is an aerobic layer, and the purification mechanism is equal to that of the aerobic pond 3. At the bottom of the facultative lagoon 2, a sludge layer is formed by the precipitated sludge and the decaying algae, bacteria, where anaerobic microorganisms dominate due to the lack of oxygen, and anaerobic fermentation, called anaerobic layer, is performed. The facultative layer is arranged between the aerobic layer and the anaerobic layer, the dissolved oxygen is very low, the dissolved oxygen exists in the daytime generally, the anaerobic state exists at night, and the facultative microorganism exists in the facultative layer, so that the microorganism can utilize free molecular oxygen and can absorb oxygen from nitrate ions or carbonate ions under the anaerobic condition. The facultative pond 2 has rich organisms, and the anaerobic zone has acid-producing bacteria and methanogenic bacteria and produces metabolic products such as acetic acid, carbon dioxide, methane and the like. Bacteria with longer generation period, such as nitrifying bacteria, can be bred due to longer hydraulic retention time. In addition to degrading organic matter, nitration may also be carried out.
The aerobic pond 3 generally adopts a lower organic load value, the dissolved oxygen is higher than 1mg/L, the sunlight can penetrate to the bottom of the pond, the depth is generally 0.5m to 0.8m, the sunlight transmission is strong, the highest pond depth with low load can reach 1.0m, and the preferred embodiment is 1.0m. The symbiotic system of algae, bacteria and protozoa exists in the aerobic pond 3, when the algae is irradiated by sunlight, the photosynthesis of the algae releases oxygen, and the surface of the aerobic pond 3 is naturally reoxygenated due to the stirring of wind power, so that the pond water is kept in a good aerobic state. Aerobic heterotrophic microorganisms living in water oxidize and decompose organic substances through metabolic activity, and the metabolic product CO thereof 2 But also as a carbon source for photosynthesis of algae. Algae uptake of CO 2 And N, P, and the like, and synthesizes cytoplasm by utilizing solar energy and simultaneously releases oxygen. The biological phase in the aerobic pond 3 is rich in species and species, and plant microorganisms include fungi and algae, and animal microorganisms include protozoa, metazoan and other micro-animals. Bacteria and method for producing sameThe number is considerable, can reach 10 8 From about one/mL to about 10 9 And each mL.
Preferably, a barrier wall (not numbered) for regulating the water flow direction is fixedly arranged between each biological pond and the adjacent biological pond.
Further, referring to fig. 2, a water inlet 5 and an overflow weir 6 are fixedly arranged at two ends of each biological pond respectively, the water inlet 5 of each biological pond is adjacent to the overflow weir 6 of the adjacent biological pond, the water inlet 5 of each biological pond is communicated with the overflow weir 6 of the adjacent biological pond through a diversion channel 7, the water inlet 5 of each biological pond is flush with the pond bottom of the current biological pond, and the overflow weir 6 of each biological pond is flush with the pond surface of the current biological pond; the biological pond at the starting end is communicated with an external water source to be treated, and the biological pond at the tail end is communicated with an external water terminal to be used; sequentially reducing the elevation values of the pond surfaces of all biological ponds from the starting end to the tail end by a first preset difference value; the elevation values of the pond bottom of all the biological ponds are sequentially increased from the initial end to the tail end by a second preset difference value.
Preferably, the water body flows in the following sequence: the water inlet of the anaerobic pond, the overflow weir of the anaerobic pond, the corresponding diversion canal, the water inlet of the facultative pond, the overflow weir of the facultative pond, the corresponding diversion canal, the water inlet of the aerobic pond, the overflow weir of the aerobic pond, the corresponding diversion canal, the water inlet of the anaerobic pond, the water inlet of the aquatic plant pond, the overflow weir of the aquatic plant pond and the corresponding diversion canal.
Specifically, taking the sequence of an anaerobic pond 1, a facultative pond 2, an aerobic pond 3 and an aquatic plant pond 4 as an example, wherein the anaerobic pond 1 is positioned at the beginning end of a pond system, and the aquatic plant pond 4 is positioned at the end of the pond system; then, the elevation value of the pool surface of the aerobic pool 3 is 0.15m higher than that of the aquatic plant pool 4; the elevation value of the pool surface of the facultative pool 2 is 0.15m higher than that of the aerobic pool 3; the elevation of the surface of the anaerobic pond 1 is 0.15m higher than that of the facultative pond 2. The pond pool system sequentially lowers 0.15m from the beginning end to the end of each pond to flow by utilizing the gravity of the water body, namely, the first preset difference value is 0.15m.
Similarly, the second preset difference may be set between 0.1m and 0.5 m.
Preferably, each water inlet 5 may be provided as a number of side-by-side water inlet pipes.
Further, referring to fig. 3, each diversion channel 7 includes a distribution channel 71 and a collection channel 72 in communication with the distribution channel 71, each distribution channel 71 is in communication with the overflow weir 6 of the current biological pond, and each collection channel 72 is in communication with the water inlet 5 of the next biological pond; the water in each biological pond overflows into distribution channel 71 via overflow weir 6, and distribution channel 71 channels the water to water collection channel 72 and further to the bottom of the next biological pond via water inlet 5.
It should be noted that each distribution channel 71 is higher than the water collection channel 72 in communication therewith to ensure that water from the overflow weir can flow under gravity from the distribution channel 71 to the water collection channel 72.
Further, referring to fig. 4, each biological pond includes a first ballast slope 8 and a second ballast slope 9 opposite to the first ballast slope 8, and the slopes of all the first ballast slopes 8 and all the second ballast slopes 9 are the same.
In order to ensure the clarity of fig. 4, fig. 4 is rotated 90 ° counterclockwise in the drawing of the specification.
Further, one end of each first ballast slope protection 8 adjacent to the pond surface of the current biological pond is fixedly provided with a plurality of first fixed anchor rods 81, and each first fixed anchor rod 81 penetrates through the current first ballast slope protection 8 and is grounded; one end of each second ballast slope 9 adjacent to the pond surface of the current biological pond is fixedly provided with a plurality of second fixed anchor rods 91, and each second fixed anchor rod 91 penetrates through the current second ballast slope 9 and is grounded.
Further, referring to fig. 5, an impermeable layer 10 is fixedly paved between the first and second ballast slopes 8 and 9 of each biological pond, and each impermeable layer 10 sequentially comprises a plain soil layer, a crushed stone cushion layer, a leveling layer, a geomembrane and a planting soil ballast layer from the bottom of the current biological pond to the surface of the current biological pond.
In order to ensure the clarity of fig. 5, fig. 5 is rotated 90 ° counterclockwise in the drawing of the specification.
Preferably, in order to ensure the pollution of the excavation construction of the ecological pond and the pond to the underground water, the pond and the pond all adopt an anti-seepage design, and the anti-seepage design is respectively as follows from top to bottom: 300-400 mm planting soil weight layer-composite geomembrane 600g/m 2 -100mm screed (crushed stone: particle size 10 mm-30 mm, 7cm laid, grit leveled, 3cm laid) -300 crushed stone bedding (particle size 30-50 mm) -plain soil tamped. The ecological pond bank protection slope can be protected by adopting a mode of backfilling planting soil or ecological bag planting bags 11 in earthwork cells (with the specification of 4m x 0.15 m) after the seepage prevention design is completed.
Further, a plurality of plant-growing bags 11 are paved on the slope surfaces of all the first weight slope protection 8 and the slope surfaces of all the second weight slope protection 9.
Further, referring to fig. 6, each biological pond is respectively communicated with a water pumping port 12, a check valve 13 is fixedly arranged on each water pumping port 12, each water pumping port 12 is respectively communicated with an external pump body through a water pumping pipeline 14, and each water pumping port 12 is located at a preset depth in the current biological pond.
Preferably, the same ecological pond is effectively combined with external water-saving engineering, and the purified tail water is furthest used for farmland recharging, so that the pumping and cleaning pollution discharge to the outside is reduced. Therefore, the water pumping pipeline 14 can be set as a water pumping steel pipe of DN300, an inspection well is arranged near the water pumping steel pipe, the end head of the water pumping steel pipe is provided with a check valve 13 for preventing water from flowing backward, and a tail water lifting pump station is arranged at the end, and is connected with an external water saving project for providing water sources for irrigation and other purposes for an upstream farmland.
Preferably, the height difference between the bottom of the water pumping steel pipe and the bottom of the pond is 0.2m to 0.5m so as to ensure the ecological water level of animals and plants in the pond.
Further, each water inlet 5 is fixedly provided with a trash rack (not shown), and the apertures of all trash racks are sequentially reduced from the beginning end to the end by a third preset difference.
Preferably, the design of the pool system of the embodiment aims at collecting the non-point source pollution of the farmland, and the non-point source pollution load is collected uniformly through the upstream intercepting ditches and collected in the pool system. The plant oxygen pond (2 m) is firstly entered from the lower part of the pond warehouse through a water inlet 5-water distributing channel 71-steel belt corrugated water distributing pipe (DN 300 is the same below); overflow from the upper distribution channel 71 into the distribution channel 71, then the distribution channel 71-steel strip corrugated distribution pipe-facultative pond 2 (1.5 m); the overflow port of the upper water distribution channel 71 flows into the water distribution channel 71, and then the water distribution channel 71, a steel belt corrugated water distribution pipe and an aerobic pond 3 (1.2 m); the overflow port of the upper water distribution channel 71 flows into the water distribution channel 71, and then the water distribution channel 71, a steel belt corrugated water distribution pipe and the aquatic plant pond 4 (1.0 m); after the purification of the four pond-reservoir systems is finished, the water flows into the current trench and is discharged to the outside, and the effect of reducing the surface source is finished.
The embodiment ensures that smaller occupied area is realized under the same condition by at least four side-by-side biological ponds which are sequentially connected in a serpentine manner; the types of each biological pond are different (such as an aerobic pond 3, a facultative pond 2, an anaerobic pond 1, an aquatic plant pond 4 and the like), and the pond height and the pond depth of each biological pond are set according to a certain rule, so that the pond height of each biological pond is gradually decreased, water can flow through each biological pond in sequence under the action of gravity, the pond depth of each biological pond is sequentially decreased, and long-acting purification arrangement conditions are provided for anaerobic conditions, facultative conditions and aerobic conditions, thereby ensuring the purification efficiency and the service life of the pond and reservoir system.
The embodiments of the utility model have been described in detail above, but they are merely examples, and the utility model is not limited to the above-described embodiments. It will be apparent to those skilled in the art that any equivalent modifications or substitutions to this utility model are within the scope of the utility model, and therefore, all equivalent changes and modifications, improvements, etc. that do not depart from the spirit and scope of the principles of this utility model are intended to be covered by this utility model.
Claims (8)
1. A pond system for reducing non-point source pollution, which is characterized by comprising at least four biological ponds which are arranged side by side in sequence, wherein each biological pond is an oxidation pond of a different type;
the two ends of each biological pond are respectively and fixedly provided with a water inlet and an overflow weir, the water inlet of each biological pond is adjacent to the overflow weir of the adjacent biological pond, the water inlet of each biological pond is communicated with the overflow weir of the adjacent biological pond through a diversion channel, the water inlet of each biological pond is flush with the pond bottom of the current biological pond, and the overflow weir of each biological pond is flush with the pond surface of the current biological pond;
the biological pond at the starting end is communicated with an external water source to be treated, and the biological pond at the tail end is communicated with an external water terminal to be used;
sequentially reducing the elevation values of the pond surfaces of all biological ponds from the starting end to the tail end by a first preset difference value;
the elevation values of the pond bottoms of all the biological ponds are sequentially increased from the starting end to the tail end by a second preset difference value.
2. The pond system for abating non-point source pollution according to claim 1, wherein each diversion channel comprises a water distribution channel and a water collecting channel communicated with the water distribution channel, each water distribution channel is communicated with an overflow weir of the current biological pond, and each water collecting channel is communicated with a water inlet of the next biological pond; the water body in each biological pond overflows into the distribution canal through the overflow weir, and the distribution canal guides the water body to the water collecting canal and further guides the water body to the pond bottom of the next biological pond through the water inlet.
3. The pond system for reducing non-point source pollution according to claim 1, wherein each biological pond comprises a first ballast and a second ballast opposite to the first ballast, and the slopes of all the first and second ballast are the same.
4. The pond system for reducing non-point source pollution according to claim 3, wherein one end of each first ballast slope adjacent to the pond surface of the current biological pond is fixedly provided with a plurality of first fixed anchor rods, and each first fixed anchor rod penetrates through the current first ballast slope and is grounded; one end of each second ballast slope adjacent to the pond surface of the current biological pond is fixedly provided with a plurality of second fixed anchor rods, and each second fixed anchor rod penetrates through the current second ballast slope and is grounded.
5. A pond system for reducing non-point source pollution according to claim 3, wherein an impermeable layer is fixedly laid between the first and second ballast slopes of each biological pond, and each impermeable layer sequentially comprises a plain layer, a macadam cushion layer, a leveling layer, a geomembrane and a planting soil ballast layer from the bottom of the current biological pond to the surface of the current biological pond.
6. The pond system for reducing non-point source pollution according to claim 3, wherein a plurality of plant growing bags are laid on the slope of all the first and second ballast slopes.
7. The pond and reservoir system for reducing non-point source pollution according to claim 1, wherein each biological pond is respectively communicated with a water pumping port, a check valve is fixedly arranged on each water pumping port, each water pumping port is respectively communicated with an external pump body through a water pumping pipeline, and each water pumping port is positioned at a preset depth in the current biological pond.
8. The pond system for reducing non-point source pollution according to claim 1, wherein each water inlet is fixedly provided with a trash rack, and the diameters of all trash racks are sequentially reduced from the start end to the end by a third preset difference.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321249181.2U CN219991310U (en) | 2023-05-22 | 2023-05-22 | Pool system for reducing non-point source pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321249181.2U CN219991310U (en) | 2023-05-22 | 2023-05-22 | Pool system for reducing non-point source pollution |
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| CN219991310U true CN219991310U (en) | 2023-11-10 |
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| CN202321249181.2U Active CN219991310U (en) | 2023-05-22 | 2023-05-22 | Pool system for reducing non-point source pollution |
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| CN (1) | CN219991310U (en) |
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