CN219823943U - Aquaculture tail water purifying system - Google Patents
Aquaculture tail water purifying system Download PDFInfo
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- CN219823943U CN219823943U CN202321123814.5U CN202321123814U CN219823943U CN 219823943 U CN219823943 U CN 219823943U CN 202321123814 U CN202321123814 U CN 202321123814U CN 219823943 U CN219823943 U CN 219823943U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000009360 aquaculture Methods 0.000 title claims abstract description 35
- 244000144974 aquaculture Species 0.000 title claims abstract description 35
- 238000000746 purification Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 6
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- 239000010959 steel Substances 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 18
- 230000001737 promoting effect Effects 0.000 abstract description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 9
- 239000011574 phosphorus Substances 0.000 abstract description 9
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- 238000000034 method Methods 0.000 description 11
- 230000008021 deposition Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 241000223600 Alternaria Species 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
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Abstract
The utility model relates to the technical field of sewage treatment, and provides an aquaculture tail water purification system. The system comprises a culture pond, wherein the culture pond is sequentially communicated with an ecological ditch, an ecological pond and a surface flow wetland, and the surface flow wetland is communicated with the culture pond or an adjacent water body; the ecological ditches are distributed along the culture pond; the ecological ditch is internally provided with a plurality of sedimentation-promoting purifying devices, and the sedimentation-promoting purifying devices are filled with filter materials. The system strengthens the removal of suspended matters and nitrogen and phosphorus nutrients in the aquaculture tail water by coupling the ecological canal, the ecological pond and the surface flow wetland, and strengthens the removal of suspended matters such as water baits in the aquaculture tail water by arranging the settlement promoting device in the ecological canal, thereby remarkably improving the removal efficiency of the system on pollutants and avoiding regional water pollution. The system replaces common hardening reconstruction engineering, and maintains a good natural ecological environment of the cultivation area.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a reinforced three-stage coupling purification system for a canal pool surface, which can be used for treating aquaculture tail water.
Background
In village and town areas with developed water systems, the water resource condition is excellent, and the aquaculture industry is developed. The aquaculture in the rural areas mainly takes the form of continuous sheets of scattered households, and has the problems of high aquaculture density, large bait throwing amount and the like due to no standardized and normalized management, thereby bringing great pollution load to the tail water of the aquaculture. A large amount of nitrogen, phosphorus and other nutrient substances exist in the tail water of aquaculture, and if the tail water is directly discharged into an adjacent natural water body without purification, the water body eutrophication phenomenon can be caused, the ecological environment of villages is seriously damaged, and the normal life of residents is influenced.
There are some known aquaculture tail water treatment systems or methods, but there are certain disadvantages. For example, a scheme is adopted that a three-tank two-dam purification system is formed by constructing a sedimentation tank, an aeration tank, an ecological tank, a water separation dam and a filtering dam, the technology has more hydraulic structures, is difficult to maintain in daily life, can easily cause the blocking of the filtering dam in the pond cleaning period, and cannot achieve good filtering effect if a large amount of daily maintenance investment is not available; the method is suitable for newly-built culture ponds, and is difficult to reform the original culture ponds; in addition, the sewage outlet is arranged at the center of the bottom of the culture pond, so that the cultured animal seedlings are easily sucked into the water discharge pipeline together, and the practical operation is difficult.
It is known that, because the rural area can be constructed with a shortage of land, and the requirements for maintaining the ecological environment and natural landscape are high, the existing aquaculture tail water purification method has the defects of more hydraulic structures, occupying the cultivation area, having lower operability and the like, and cannot effectively meet the actual requirements of the rural area, and is difficult to popularize and implement. Specifically, the existing cultivation tail water treatment generally has the following problems: (1) The hard structures are more, the investment is higher, and the management and maintenance are difficult; (2) The requirements on the site topography are high, and the method is only suitable for part of cultivation ponds and is difficult to popularize and apply; (3) Recycling and multistage purification of water resources are not fully considered. Therefore, by constructing a wetland system for ecological purification of the culture tail water, the efficient purification and cyclic application of the culture tail water are promoted, the water resource utilization efficiency is improved, and the regional water environment quality is improved, so that the method is a technical problem currently faced.
Disclosure of Invention
The utility model provides a reinforced three-stage coupling purification system for a canal pool surface, which can be used for treating aquaculture tail water, so as to solve the problem of pollution of the aquaculture tail water in the rural area and overcome the defects of more hard structures, local environment damage and the like of the purification system in the prior art.
The aquaculture tail water purification system provided by the utility model comprises a culture pond, wherein the culture pond is sequentially communicated with an ecological ditch, an ecological pond and a surface flow wetland, and the surface flow wetland is communicated with the culture pond or an adjacent water body; the ecological ditches are distributed along the culture pond, so that tail water of the culture pond can be gathered into the ecological ditches; the ecological ditch is internally provided with a plurality of sedimentation-promoting purifying devices, and the sedimentation-promoting purifying devices are filled with filter materials.
Optionally, the ecological ditch, the ecological pond and the surface flow wetland are mutually communicated through a natural ditch, and an adsorption matrix layer is arranged at the bottom of the natural ditch.
Optionally, the deposition-promoting purification devices are arranged at the junction of each ecological ditch, a plurality of deposition-promoting purification devices are combined in a serial mode, and the width of each deposition-promoting purification device is consistent with that of each ecological ditch.
Optionally, a plurality of guide plates are arranged in the deposition promoting and purifying device, one end of each guide plate is fixedly connected with the side wall of the deposition promoting and purifying device and is distributed at the left side and the right side at intervals, so that water entering the deposition promoting and purifying device flows in an S-shaped baffling way; a steel wire mesh cage is arranged in the settlement-promoting purification device, and the filter materials are filled and arranged in the steel wire mesh cage.
Optionally, the canal bottom of the ecological canal is laid with an adsorption matrix layer and is provided with submerged plants, the canal wall is provided with ground cover herbaceous plants, and the land-water junction is provided with emergent aquatic plants.
Optionally, the ecological ditch is multistage and comprises a primary ecological ditch and a secondary ecological ditch which are sequentially communicated; the ecological pond comprises a primary ecological pond and a secondary ecological pond which are sequentially communicated.
Optionally, floating plants and emergent aquatic plants are arranged in the first-stage ecological pond; gravel or cobbles are piled up at the inlet of the water coming from the first-stage ecological pond, and ecological bags are arranged on the side slope of the pond body for protection.
Optionally, emergent aquatic plants and submerged plants are arranged in the secondary ecological pond, and microporous aeration equipment is arranged in the pond; gravel or cobbles are piled up at the inlet of the water coming from the secondary ecological pond, and ecological bags are arranged on the side slope of the pond body for protection.
Optionally, aquatic plants are planted in the surface flow wetland and ecological islands are arranged in the surface flow wetland; the tail end of the surface flow wetland in the water inflow direction is provided with a pump station, and the surface flow wetland is communicated with a culture pond or an adjacent water body through the pump station.
Optionally, the surface flow wetland is provided with a shallow water area with the water depth lower than 0.6m, and a purification substrate layer with the thickness of 20cm is paved at the bottom of the shallow water area; the shallow water area is arranged at the front end of the surface flow wetland along the water inflow direction of the surface flow wetland, the water depth of the surface flow wetland from the front end to the tail end is gradually deepened, and the deepest part is 1.5m.
The aquaculture tail water purification system provided by the utility model constructs a circulating purification and recycling system of a culture pond, an ecological ditch, an ecological pond, a surface flow wetland and a culture pond/adjacent water body. The system strengthens the removal of suspended matters and nitrogen and phosphorus nutrients in the tail water of the cultivation by coupling the ecological canal, the ecological pond and the surface flow wetland, and ensures that the effluent of the system can be used for recycling the cultivation and reaching the discharge standards. And moreover, the settlement promoting device is arranged in the ecological ditch to strengthen the removal of suspended matters such as water body baits in the culture tail water, so that the removal efficiency of the system on pollutants is remarkably improved, and regional water pollution is avoided. The ecological canal, the ecological pond and the like of the system replace common hardening reconstruction engineering, and maintain good natural ecological environment of the cultivation area.
Furthermore, the system strengthens the removal of small particulate matters and nitrogen and phosphorus of the water body by arranging the adsorption matrix layer with high adsorption performance at the bottom of the canal, and reasonably increases various strengthening and purifying measures in the subsequent ecological pond and surface flow wetland construction process, such as arranging high-purifying matrix filler, arranging microporous aeration equipment and the like, thereby further improving the removal efficiency of pollutants of the water body and the content of dissolved oxygen in the effluent. In addition, the system also constructs a layered emergent aquatic plant community belt, a submerged plant community belt and a floating plant community belt according to the differences of the functions, the water depths and the plant growth periods of the wetland, so that the requirements of season replacement can be met, and the ecological greening landscape is enriched. The purification system can realize the efficient removal of suspended matters, permanganate index, total nitrogen and total phosphorus in the culture tail water, and meets the requirements of the recycling of the culture water and the discharge into the river.
Drawings
In order to more clearly illustrate the technical solution of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of the overall planar structure of the system of the present utility model;
FIG. 2 is a schematic view of an ecological trench cross-section of the present utility model;
FIG. 3 is a schematic cross-sectional view of a primary ecological pond according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a secondary ecological pond according to the present utility model;
FIG. 5 is a schematic cross-sectional view of a surface flow wetland according to the utility model;
FIG. 6 is a schematic plan view of the deposition-promoting purification apparatus of the present utility model.
In the figure, 1-cultivation ponds, 2-first-stage ecological ditches, 201-ground cover herbaceous plants, 202-emergent aquatic plants, 203-submerged plants, 210-deposition-promoting purification devices, 211-filter materials, 212-guide plates, 213-steel wire mesh cages, 3-second-stage ecological ditches, 4-first-stage ecological ponds, 41-floating plants, 42-first-stage ecological pond emergent aquatic plants, 43-ecological bags, 5-second-stage ecological ponds, 51-microporous aeration equipment, 6-surface-flow wetlands and 61-ecological islands.
Detailed Description
The following describes the technical scheme of the present utility model in detail with reference to the drawings and the specific embodiments.
The aquaculture tail water purification system comprises an ecological ditch, an ecological pond and a surface flow wetland which are sequentially communicated with a culture pond, wherein the surface flow wetland is communicated with the culture pond or an adjacent water body. The ecological ditches are distributed along the culture pond, so that tail water of the culture pond can be gathered into the ecological ditches; the ecological ditch is internally provided with a plurality of sedimentation-promoting purifying devices, and the sedimentation-promoting purifying devices are filled with filter materials. The tail water of the cultivation pond is purified and recycled or discharged after reaching standards in the system from the cultivation pond, the ecological canal, the ecological pond, the surface flow wetland and the cultivation pond or the adjacent water body. Specifically, the ecological canal, the ecological pond and the surface flow wetland are connected and communicated with each other through a natural canal, an adsorption matrix layer is arranged at the bottom of the natural canal, and a high-efficiency nitrogen and phosphorus adsorption matrix is arranged in the adsorption matrix layer.
The method comprises the steps of constructing an enhanced ecological pond and a surface flow wetland around the cultivation pond according to local conditions, and sequentially introducing cultivation tail water into the ecological pond and the surface flow wetland for purification through an ecological canal, so that various indexes of the ecological pond and the surface flow wetland reach the fishery cultivation standard or the river entering emission standard. The purified tail water can be introduced into the culture pond for recycling or discharged into a nearby river for river water supply as required, so that the maximum utilization of water resources is realized, and the problem that the direct discharge of the culture tail water pollutes the water body of the surrounding river at present is effectively solved.
Specifically, as shown in fig. 1 to 6, the present embodiment provides an enhanced three-stage coupling purification system for treating aquaculture tail water.
(1) Ecological ditch
Aiming at the characteristics of large relative dispersion, regularity and volume of the culture tail water, a multi-stage ecological ditch is arranged according to the area of a culture area, and the ditch utilizes the ditch bodies such as the existing drainage ditch as far as possible. The ecological ditch is used for collecting tail water of the culture pond and has the functions of conveying and primary purification. The ecological ditch construction utilizes the existing drainage ditch or peripheral ditches to reconstruct, and is cut, bent and straightened, so that the smooth drainage is ensured. The ecological ditch can be multi-stage, and when the cultivation range is large, as in the embodiment shown in fig. 1, a first-stage ecological ditch 2 and a second-stage ecological ditch 3 which are sequentially communicated can be arranged.
By arranging the adsorption matrix layer with high-efficiency nitrogen and phosphorus adsorption to the aquatic plants and high adsorption performance on the basis of the designed canal body, the microorganism adhesion area is increased. The ditch wall plant is mainly natural succession, and the ditch wall is planted with grass plants 201 such as bermudagrass and ryegrass; planting water emergent aquatic plants 202 such as water spinach, water cress, cane shoots and the like near the land and water juncture; submerged plants 203 such as herba Sonchi Oleracei and Goldfish algae are planted at the bottom of the ditch. The cross section of the ditch body is inverted trapezoid, and the actual size is determined according to the current ditch shape.
When the cultivation area is large, a plurality of settlement promoting and purifying devices 210 with the total effective volume of 2 cubic meters are arranged at the ditch junction of each ecological ditch according to each mu of cultivation pond when the multistage ecological ditches including the first-stage ecological ditches 2 and the second-stage ecological ditches 3 are needed, and filter materials 211 are filled in the settlement promoting and purifying devices 210. The deposition promoting and purifying device is cleaned regularly and the filter material is replaced. The filter material is generally composed of gravel, haydite and activated carbon. The sinking and purifying means 210 are combined in a series of units, each unit having a width corresponding to the ecological ditch. A plurality of guide plates are arranged in the device, specifically, the length of each guide plate is 50cm, each guide plate 212 is arranged every 25cm, and the width of each guide plate 212 is 2/3 of the width of the unit. As shown in fig. 6, one end of each deflector 212 is fixedly connected with the side wall of the deposition promoting and purifying device 210 and is arranged at intervals on the left side and the right side, so that water entering the deposition promoting and purifying device flows in an S-shaped baffling manner; the inside of the device is added with adsorption filtering materials such as active carbon, and the filtering materials 211 are fixed at the bottom of the sedimentation promoting purification device 210 by a steel wire mesh cage 213.
(2) Ecological pond
Aiming at the characteristics of large water inflow of the culture tail water, high suspended solid concentration and the like, the utility model constructs an ecological pond system at the tail end of the multistage water withdrawal ecological canal according to local conditions. The ecological pond comprises a primary ecological pond 4 and a secondary ecological pond 5 which are sequentially connected.
The first-stage ecological pond 4 receives ecological canal inflow, gravel or cobbles are piled up at the inlet of the first-stage ecological pond to prevent water flow scouring, a large number of floating plants 41 are planted in the pond, emergent aquatic plants, namely first-stage ecological pond emergent aquatic plants 42, are matched in a shallow water area, and the side slope of the pond body is protected by ecological bags 43.
The secondary ecological pond 5 is used for carrying out one-step storage and purification on the water coming from the primary ecological pond 4, the deepest part of the pond body is 2.5m, the average effective water depth is 1.5m, a small quantity of emergent aquatic plants and submerged plants are planted in the slope suitable area, and the microporous aeration equipment 51 is arranged in the pond, so that the dissolved oxygen of the water body is improved. Gravel or cobble is piled up at the entrance of the secondary ecological pond 5 to play a role in preventing water flow scouring, and the side slope of the pond body is also protected by an ecological bag.
(3) Surface flow wetland
Aiming at the pollution characteristics of the cultivation tail water, a surface flow wetland system is constructed to carry out ecological purification on the incoming water, so that the incoming water meets the cultivation water standard and the river-entering discharge requirement. The surface flow wetland mainly shapes various terrains through micro-topography transformation, and further regulates, stores and purifies the culture tail water, so that 'the tail water is not discharged directly'. Aquatic plants with good growth vigor are planted in the wetland, ecological islands are arranged in a matching mode, and the water flow state of the wetland is optimized while the multi-element habitat is constructed.
Specifically, the surface flow wetland 6 of the system is divided into a shallow water area and a deep water area. The front end of the surface flow wetland is a shallow water area, the water depth is lower than 0.6m, a large number of emergent aquatic plants and submerged plants are planted in the wetland, the planting proportion of the aquatic plants is more than 80%, and a gravel layer with the thickness of 20cm is paved and used as a purification type matrix layer so as to strengthen the pollutant treatment efficiency. The water depth at the tail end of the wetland is gradually deepened, and the deepest part is 1.5m, so that the water body is stabilized and the water outlet safety is ensured. An ecological island 61 is arranged in the wetland, and the side slope of the wetland is protected by an ecological bag. In addition, a pump station is reserved at the tail end of the surface flow wetland, and the surface flow wetland is communicated with an adjacent water body through the pump station and is used for draining water in flood season.
In addition, the purification system carries out plant configuration according to factors such as wetland topography, water area, water depth and the like. The emergent aquatic plants are selected from reed, typha, rhizoma Acori Calami, evergreen Iris, herba Alternantherae, herba Lythrae, etc., with plant height of more than 0.25m and planting density of 16-25 clusters/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The submerged plant is selected from Alternaria glaucescens, alternaria alternata, alternaria longituba, potamogeton crispus, etc., and the submerged plant is selected from Nymphaea tetragona, alternaria sinensis, nuphar zeylanica, etc.
The technical scheme of the utility model is fully described above with reference to the specific embodiments. The ecological aquaculture tail water purifying system is provided for effectively solving the problem of aquaculture tail water pollution in the southern rural areas. The main reason for the eutrophication of the river is caused by the pollution of nitrogen and phosphorus, and the aquaculture tail water is obviously characterized by high nitrogen and phosphorus content. Based on the ecological concept of not damaging the natural landscape of the village, the technical scheme of the utility model carries out ecological transformation on the basis of natural water bodies such as the original drainage main canal, pit and the like of the village, forms a main process of ecological ditch, primary ecological pond, secondary ecological pond, surface flow wetland, integrates ecological interception, ecological adsorption, ecological purification and ecological restoration, effectively reduces the main pollutants in the tail water discharged by the aquaculture area, greatly lightens the pollution load of the aquaculture tail water to important water bodies, and reproduces the clear, smooth and beautiful view of the village water. In addition, the system does not need to construct a hard hydraulic structure, does not put in biological bacteria, and the selected materials are ecological, environment-friendly and low in cost, so that the pollution load of the tail water of aquaculture can be greatly reduced after the process is operated, the surrounding environment can be beautified, and the dual benefits of environment and society are realized.
The foregoing is merely an embodiment of the present utility model, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the field before the application date or priority date, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present utility model in combination with his own capability, so that some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (10)
1. The aquaculture tail water purification system comprises a culture pond, and is characterized in that the culture pond is sequentially communicated with an ecological ditch, the ecological pond and a surface flow wetland, and the surface flow wetland is communicated with the culture pond or an adjacent water body; the ecological ditches are distributed along the culture pond, so that tail water of the culture pond can be gathered into the ecological ditches; the ecological ditch is internally provided with a plurality of sedimentation-promoting purifying devices, and the sedimentation-promoting purifying devices are filled with filter materials.
2. The aquaculture tail water purification system according to claim 1, wherein the ecological ditch, the ecological pond and the surface flow wetland are communicated with each other through a natural ditch, and an adsorption matrix layer is arranged at the bottom of the natural ditch.
3. The aquaculture tail water purification system according to claim 1 wherein said settlement-promoting purification devices are disposed at the junction of each ecological ditch, a plurality of settlement-promoting purification devices being combined in series, each settlement-promoting purification device having a width consistent with the ecological ditch.
4. The aquaculture tail water purification system according to claim 1, wherein a plurality of guide plates are arranged in the settlement-promoting purification device, one end of each guide plate is fixedly connected with the side wall of the settlement-promoting purification device and is distributed at intervals on the left side and the right side, so that water entering the settlement-promoting purification device flows in an S-shaped baffling manner; a steel wire mesh cage is arranged in the settlement-promoting purification device, and the filter materials are filled and arranged in the steel wire mesh cage.
5. The aquaculture tail water purification system according to claim 1 wherein an adsorption matrix layer is laid on the bottom of the ecological ditch and submerged plants are provided, the ditch walls are provided with ground cover plants, and the land and water junctions are provided with emergent aquatic plants.
6. The aquaculture tail water purification system according to claim 1 wherein said ecological ditch is multi-stage, comprising a primary ecological ditch and a secondary ecological ditch in sequential communication; the ecological pond comprises a primary ecological pond and a secondary ecological pond which are sequentially communicated.
7. The aquaculture tail water purification system according to claim 6 wherein floating plants and emergent aquatic plants are disposed in said primary ecological pond; gravel or cobbles are piled up at the inlet of the water coming from the first-stage ecological pond, and ecological bags are arranged on the side slope of the pond body for protection.
8. The aquaculture tail water purification system according to claim 6, wherein emergent aquatic plants and submerged plants are arranged in the secondary ecological pond, and microporous aeration equipment is arranged in the pond; gravel or cobbles are piled up at the inlet of the water coming from the secondary ecological pond, and ecological bags are arranged on the side slope of the pond body for protection.
9. The aquaculture tail water purification system of claim 1 wherein said surface flow wetland is planted with aquatic plants and is provided with ecological islands; the tail end of the surface flow wetland in the water inflow direction is provided with a pump station, and the surface flow wetland is communicated with a culture pond or an adjacent water body through the pump station.
10. The aquaculture tail water purification system according to claim 9 wherein said surface flow wetland is provided with a shallow water zone having a water depth of less than 0.6m, a purification matrix layer having a thickness of 20cm being laid at the bottom of said shallow water zone; the shallow water area is arranged at the front end of the surface flow wetland along the water inflow direction of the surface flow wetland, the water depth of the surface flow wetland from the front end to the tail end is gradually deepened, and the deepest part is 1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202321123814.5U CN219823943U (en) | 2023-05-11 | 2023-05-11 | Aquaculture tail water purifying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321123814.5U CN219823943U (en) | 2023-05-11 | 2023-05-11 | Aquaculture tail water purifying system |
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| CN219823943U true CN219823943U (en) | 2023-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117361812A (en) * | 2023-12-07 | 2024-01-09 | 广州市水之道环境科技有限公司 | Low-load aquaculture pond tail water recycling system |
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2023
- 2023-05-11 CN CN202321123814.5U patent/CN219823943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117361812A (en) * | 2023-12-07 | 2024-01-09 | 广州市水之道环境科技有限公司 | Low-load aquaculture pond tail water recycling system |
| CN117361812B (en) * | 2023-12-07 | 2024-03-15 | 广州市水之道环境科技有限公司 | Low-load aquaculture pond tail water recycling system |
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