Centralized culture tail water efficient purification system structure

By designing a centralized aquaculture wastewater purification system, which employs aeration and aquatic plant purification, the problems of complex structure, large footprint, and poor aeration effect in existing technologies have been solved, enabling efficient purification and recycling in small-scale aquaculture farms.

CN223936343UActive Publication Date: 2026-02-24ANHUI SHUIYUN ENVIRONMENTAL PROTECTION CO LTD
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Patent Information

Application Number
CN202520272763.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-02-24
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing aquaculture wastewater treatment systems are complex in structure and occupy a large area, making them unsuitable for small-scale aquaculture farms. During the purification process using aquatic plants, plant decay and water debris are difficult to clean, resulting in poor aeration and high costs.

Method used

Design a centralized aquaculture wastewater high-efficiency purification system, including an aquaculture collection water settling processor, an aeration treatment tank, an aquatic plant purification tank, and a detachable aquatic plant planting structure. High-efficiency purification is achieved through aeration treatment and aquatic plant purification, while simplifying the structure and facilitating the cleaning of debris.

Benefits of technology

It enables convenient cleaning of plant decay and water debris during the aquatic plant purification process, produces high-quality effluent, consumes little energy, is easy to operate, reduces costs, is suitable for small-scale aquaculture farms, and achieves compliant discharge and recycling of effluent.

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Abstract

The utility model relates to a centralized culture tail water efficient purification system structure. Comprising a culture collection water body standing processor, a water inlet pipeline, a water suction pump connected with a culture pond area, a water drainage pipeline connected with the collection water body standing processor, an aeration treatment pond structure connected with the water drainage pipeline, and an aquatic plant purification pond structure connected with the aeration treatment pond structure, tail water generated during aquaculture can be conveniently filtered and purified through the aquatic purification plant planting structure; in addition, in the aquatic plant purification process, plant decayed substances and water impurities are also convenient to clean, and the tail water treatment requirement is met. And the aquatic purification plant planting structure is detachably connected, so that the aquatic purification plant planting structure can be conveniently disassembled, assembled and used when the whole body is cleaned. Moreover, heavy metals, organic pollutants and suspended solids are effectively removed, the method has the characteristics of good effluent quality, low energy consumption, simplicity in operation, reduction of water eutrophication and the like, and the up-to-standard discharge and cyclic utilization of the aquaculture tail water can be realized.
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Description

Technical Field

[0001] This utility model relates to the field of water purification, and in particular to a structure for a centralized aquaculture wastewater high-efficiency purification system. Background Technology

[0002] Aquaculture wastewater refers to water that, during the aquaculture process, accumulates harmful substances such as ammonia nitrogen, nitrite, and hydrogen sulfide due to the metabolism and excrement of fish and other organisms, as well as feed residues and drug residues. This leads to water quality deterioration and adverse effects on farmed organisms.

[0003] Aquaculture wastewater treatment refers to the process of treating and purifying wastewater generated during aquaculture. Its purpose is to protect water quality, reduce environmental pollution, and also to reuse the treated wastewater as a resource.

[0004] The current structure of aquaculture wastewater treatment system is as shown in publication number CN221544412U: A high-efficiency collection and purification treatment system structure for aquaculture wastewater, including a wastewater collection sedimentation tank structure, an ultrafiltration tank structure, and a multi-group purification tank structure. The wastewater collection sedimentation tank structure includes a sedimentation collection tank, a high-pressure water pump body, and an electrical control box. The ultrafiltration tank structure includes a filtration tank body and a filter plate filtration device installed in the filtration tank body. The multi-group purification tank structure includes a diversion pipeline connected to the filtration tank body and a group of classified purification tanks. The group of classified purification tanks is connected to the clean water collection tank through a centralized pipeline.

[0005] The shortcomings are:

[0006] 1. Existing technologies have complex designs and require a large area, making them unsuitable for small-scale farms.

[0007] 2. In the implementation process, the existing technology's "classification and purification pool group includes an aeration pool 12, a microbial treatment pool 13, and an aquatic plant ecological pool 14." However, the aquatic plant ecological pool 14, through which the treated aquaculture wastewater passes, lacks a specific planting device (the plants are directly planted in the aquatic plant ecological pool). This leads to the decay of the aquatic plant roots or the presence of suspended solids and debris from the previous purification process, resulting in unclean purified water. Furthermore, the addition of filtration structures to the existing aquatic plant ecological pool increases costs, and disassembly and cleaning are extremely inconvenient.

[0008] 3. Existing aeration tanks use a general aeration pipe structure, which cannot achieve efficient aeration.

[0009] 4. Existing technologies for efficient collection and purification of aquaculture wastewater have high structural costs.

[0010] Therefore, further improvements are needed to the design of existing devices. The existing aquaculture wastewater treatment system has poor aeration effect, and it is not easy to collect and clean up plant decay products and suspended solids in the water. A centralized, high-efficiency aquaculture wastewater purification system is needed. Utility Model Content

[0011] The purpose of this invention is to provide a centralized, high-efficiency purification system for aquaculture wastewater, solving the problems of slow purification time of aquatic plants and difficulty in collecting and cleaning up plant decay and water debris during the purification process in existing aquaculture wastewater treatment methods.

[0012] The technical solution adopted by this utility model to solve its technical problem is: a centralized aquaculture wastewater high-efficiency purification system structure, including a set of aquaculture collection water settling processors, an inlet pipe connected to the collection water settling processors, a water pump connected to the inlet pipe and connected to the aquaculture pond area, a drainage pipe connected to the collection water settling processors, an aeration treatment tank structure connected to the drainage pipe, and an aquatic plant purification tank structure connected to the aeration treatment tank structure. The aeration treatment tank structure includes an aeration tank, a control air passage structure located outside the aeration tank, a first water collection settling tank located at the rear end of the aeration tank, and an aeration pipe assembly located in the aeration tank and connected to the control air passage structure. The aquatic plant purification tank structure includes a plant purification tank, an aquatic purification plant planting structure located in the plant purification tank, a second water collection settling tank located in the plant purification tank, and a main drainage control pipe connected to the second water collection settling tank.

[0013] The aquatic purification plant planting structure includes an upper planting platform structure, a filter bottom platform structure located below the upper planting platform structure, a floating body located outside the upper planting platform structure, a connecting rod assembly located inside the filter bottom platform structure and the upper planting platform structure, and an outer filter mesh located between the filter bottom platform structure and the upper planting platform structure. The first water collection and settling tank is equipped with a branch drainage pipe that communicates with the plant purification pool. The branch drainage pipe passes through the outer filter mesh and extends to the space between the upper planting platform structure and the filter bottom platform structure.

[0014] The upper planting platform structure includes an outer limiting frame, planting dividers evenly distributed within the outer limiting frame, and a bottom support frame within the planting dividers.

[0015] The filter bottom platform structure includes a bottom connecting platform, multiple sets of central bottom filter screens arranged at intervals in the bottom connecting platform, and a dirt accumulation channel between two central bottom filter screens.

[0016] The aeration pipe assembly includes an air supply pipe connected to the control air circuit structure, a branch connecting pipe disposed in the air supply pipe, and an aeration pipe body disposed between the branch connecting pipes. A connecting auxiliary frame is provided between the air supply pipe and the outer aeration pipe body.

[0017] The beneficial effects of this invention are as follows: The aquatic purification plant planting structure enables convenient filtration and purification of wastewater generated during aquaculture; plant decay and water debris are also easily removed during the purification process, meeting the wastewater treatment requirements. The aquatic purification plant planting structure is detachable, allowing for easy assembly and disassembly during cleaning. It effectively removes heavy metals, organic pollutants, and suspended solids, resulting in high-quality effluent, low energy consumption, simple operation, and reduced eutrophication, enabling the compliant discharge and recycling of aquaculture wastewater.

[0018] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 for Figure 1 A schematic diagram of the structure for planting aquatic purification plants.

[0021] Figure 3 for Figure 2 Top view of the bottom platform structure of the middle filter.

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the aeration treatment tank.

[0023] In the diagram: 1. Water collection and settling processor; 2. Inlet pipe; 3. Water pump; 4. Drainage pipe; 5. Aeration tank; 6. Control air circuit structure; 7. First water collection and settling tank; 8. Plant purification tank; 9. Second water collection and settling tank; 10. Main drainage control pipe; 11. Floating body; 12. Connecting rod assembly; 13. Outer filter mesh; 14. Branch drainage pipe; 15. Outer limiting frame; 16. Planting divider; 17. Bottom support mesh frame; 18. Bottom connecting platform; 19. Connecting auxiliary frame; 20. Central bottom filter mesh; 21. Sludge accumulation channel; 22. Air supply pipe; 23. Branch connecting pipe; 24. Aeration pipe. Detailed Implementation

[0024] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1, such as Figure 1-4 As shown, a centralized aquaculture wastewater high-efficiency purification system structure includes a set of water collection and settling processors 1, an inlet pipe 2 connected to the water collection and settling processors, a water pump 3 connected to the inlet pipe and connected to the aquaculture pond area, a drainage pipe 4 connected to the water collection and settling processors, an aeration treatment tank structure connected to the drainage pipe, and an aquatic plant purification tank structure connected to the aeration treatment tank structure. The aeration treatment tank structure includes an aeration tank 5, a control air passage structure 6 located outside the aeration tank, a first water collection and settling tank 7 located at the rear end of the aeration tank, and an aeration pipe assembly located in the aeration tank and connected to the control air passage structure. The aquatic plant purification tank structure includes a plant purification tank 8, an aquatic purification plant planting structure located in the plant purification tank, a second water collection and settling tank 9 located in the plant purification tank, and a main drainage control pipe 10 connected to the second water collection and settling tank. It features low energy consumption, simple operation, and reduced eutrophication of water bodies, enabling the compliant discharge and recycling of aquaculture wastewater.

[0027] The aquatic purification plant planting structure includes an upper planting platform structure, a filter bottom platform structure located below the upper planting platform structure, a floating body 11 located outside the upper planting platform structure, a connecting rod assembly 12 located inside the filter bottom platform structure and the upper planting platform structure, and an outer filter mesh 13 located between the filter bottom platform structure and the upper planting platform structure. The first water collection and settling tank 9 is equipped with a branch drainage pipe 14 connected to the plant purification pool. The branch drainage pipe passes through the outer filter mesh and extends to the space between the upper planting platform structure and the filter bottom platform structure. The upper planting platform structure includes an outer limiting frame 15, planting dividers 16 evenly distributed within the outer limiting frame, and a bottom support mesh frame 17 within the planting dividers. The outer filter mesh 13 formed between the bottom filter platform structure and the upper planting platform structure surrounds the filter, concentrating impurities in the aerated wastewater entering from the branch drainage pipe 14, as well as plant decay and water debris purified by the purifying plants, within a single enclosed area, reducing the deposition of debris and suspended solids in the purification area. The aquatic plant purification structure also facilitates the cleaning of plant decay and water debris during the aquatic plant purification process, meeting the requirements for wastewater treatment. The aquatic plant purification structure is detachable, allowing for convenient assembly and disassembly during overall cleaning. When using this aquatic plant purification structure: the floating body 11 is used to fix the pool body; during the sludge removal process, it is lifted by hoisting equipment; manual disassembly and sludge removal are also possible.

[0028] The filter bottom platform structure includes a bottom connecting platform 18, multiple sets of spaced-apart central bottom filter screens 20 disposed in the bottom connecting platform, and a sediment collection channel 21 disposed between two central bottom filter screens. It is used for collecting sediment.

[0029] The aeration pipe assembly includes an air supply pipe 22 connected to the control air circuit structure 6, a branch connecting pipe 23 disposed in the air supply pipe, and an aeration pipe body 24 disposed between the branch connecting pipes. A connecting auxiliary frame 19 is provided between the air supply pipe and the outer aeration pipe body. This effectively aerates the aquaculture wastewater to obtain high-quality effluent.

[0030] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

[0031] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A centralized aquaculture wastewater high-efficiency purification system structure, comprising a set of aquaculture water collection and settling processors, an inlet pipe connected to the water collection and settling processors, a water pump connected to the inlet pipes and connected to the aquaculture pond area, a drainage pipe connected to the water collection and settling processors, an aeration treatment tank structure connected to the drainage pipes, and an aquatic plant purification tank structure connected to the aeration treatment tank structure, characterized in that: The aeration treatment tank structure includes an aeration tank, a control air path structure located outside the aeration tank, a first water collection and settling tank located at the rear end of the aeration tank, and an aeration pipe assembly located in the aeration tank and connected to the control air path structure. The aquatic plant purification tank structure includes a plant purification tank, an aquatic purification plant planting structure located in the plant purification tank, a second water collection and settling tank located in the plant purification tank, and a main drainage control pipeline connected to the second water collection and settling tank.

2. The structure of a centralized aquaculture wastewater high-efficiency purification system as described in claim 1, characterized in that: The aquatic purification plant planting structure includes an upper planting platform structure, a filter bottom platform structure located below the upper planting platform structure, a floating body located outside the upper planting platform structure, a connecting rod assembly located inside the filter bottom platform structure and the upper planting platform structure, and an outer filter mesh located between the filter bottom platform structure and the upper planting platform structure. The first water collection and settling tank is equipped with a branch drainage pipe that communicates with the plant purification pool. The branch drainage pipe passes through the outer filter mesh and extends to the space between the upper planting platform structure and the filter bottom platform structure.

3. The structure of the centralized aquaculture wastewater high-efficiency purification system as described in claim 2, characterized in that: The upper planting platform structure includes an outer limiting frame, planting dividers evenly distributed within the outer limiting frame, and a bottom support frame within the planting dividers.

4. The structure of the centralized aquaculture wastewater high-efficiency purification system as described in claim 2, characterized in that: The filter bottom platform structure includes a bottom connecting platform, multiple sets of central bottom filter screens arranged at intervals in the bottom connecting platform, and a dirt accumulation channel between two central bottom filter screens.

5. The structure of the centralized aquaculture wastewater high-efficiency purification system as described in claim 1, characterized in that: The aeration pipe assembly includes an air supply pipe connected to the control air circuit structure, a branch connecting pipe disposed in the air supply pipe, and an aeration pipe body disposed between the branch connecting pipes. A connecting auxiliary frame is provided between the air supply pipe and the outer aeration pipe body.

Citation Information

Patent Citations

  • Efficient collection and purification treatment system structure for breeding tail water

    CN221544412U