Circulating water process equipment based on biochemical box
By setting up biological treatment tanks and aeration components in fish ponds, the exchange of pond water and biological treatment tank water is achieved using the airlift principle. The pond water is then treated using MBBR fluidized bed packing, which solves the problem of ammonia nitrogen and nitrite treatment, effectively reducing ammonia nitrogen and nitrite and ensuring the healthy growth of fish and shrimp.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-17
AI Technical Summary
In fish and shrimp farming, failure to treat ammonia nitrogen and nitrite in a timely manner can lead to the death of fish and shrimp.
The system employs a biochemical tank and aeration components, utilizing the airlift principle to create a continuous exchange between pond water and water within the biochemical tank. The pond water is then treated using MBBR fluidized bed packing material inside the biochemical tank.
It effectively reduces the levels of ammonia nitrogen and nitrite in fishponds, ensuring the healthy growth of fish and shrimp.
Smart Images
Figure CN224001192U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water treatment devices, specifically to a circulating water process equipment based on a biochemical tank. Background Technology
[0002] During fish and shrimp farming, ammonia nitrogen and nitrite will be produced in the fish pond. If ammonia nitrogen and nitrite are not treated in time, it will lead to the death of fish and shrimp. Utility Model Content
[0003] The problem to be solved by this utility model is to provide a circulating water process equipment based on a biochemical tank. By setting up a biochemical tank and an aeration component, the circulating water is continuously generated by the air lift principle, forming a process of continuous exchange between pond water and water in the biochemical tank. The pond water is treated by the MBBR fluidized bed packing inside the biochemical tank, which effectively reduces the content of ammonia nitrogen and nitrite in the fish pond.
[0004] The technical solution provided by this utility model to solve the above problems is: a circulating water process equipment based on a biochemical tank, including a biochemical tank body and an aeration component;
[0005] The biochemical tank is placed inside the water body to be treated; the upper and lower parts of the biochemical tank are provided with several holes; the aeration component is installed inside the biochemical tank to provide air to the biochemical tank; the inside of the biochemical tank is filled with MBBR fluidized bed packing.
[0006] Preferably, the aeration assembly includes a plurality of aeration discs, and the aeration discs are connected to an external gas generating device.
[0007] Preferably, there are four aeration discs evenly distributed at the lower end of the biochemical tank.
[0008] Preferably, the diameter of the hole is less than 5 mm.
[0009] Preferably, the biochemical chamber is made of PP board.
[0010] Preferably, the lower end of the side of the biochemical box is also provided with several holes.
[0011] Preferably, it also includes a filling assembly for adding filler to the interior of the biochemical chamber.
[0012] Preferably, the feeding assembly includes a feeding pipe and a feeding structure, the feeding structure being disposed on one side of the biochemical chamber, and the feeding pipe being compatible with the feeding structure.
[0013] Preferably, the feeding structure includes a feeding seat and a baffle. The feeding seat is provided with a feeding trough that communicates with the interior of the biochemical box. The baffle is made of a material with large buoyancy. One end of the baffle is hinged to the wall of the feeding trough, and the other end abuts against the lower end face of a limiting block provided on the wall of the feeding trough. When the feeding pipe is inserted into the feeding trough, it drives the baffle to rotate around the hinge, thereby opening the feeding trough.
[0014] Preferably, the lower end of the feeding pipe is provided with an abutment rod for driving the baffle to rotate.
[0015] Compared with the prior art, the advantages of this utility model are: by setting up a biochemical tank and aeration components, the present invention continuously generates circulating water using the airlift principle, forming a process of continuous exchange between pond water and biochemical tank water. The MBBR fluidized bed packing inside the biochemical tank is used to treat the pond water, effectively reducing the ammonia nitrogen and nitrite content inside the fishpond. Attached Figure Description
[0016] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a top view of the biochemical chamber of this utility model after the top cover has been removed;
[0019] Figure 3 This is a cross-sectional view of the feeding component of this utility model;
[0020] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.
[0021] Attached diagram labels: 1. Biochemical chamber, 2. Hole, 3. Aeration disc, 4. Feed seat, 5. Baffle, 6. Feeding pipe, 7. Feed trough, 8. Limiting block, 9. Abutment rod. Detailed Implementation
[0022] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.
[0023] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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. They should not be construed as limiting the specific protection scope of this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0027] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0028] As shown in the attached drawings, a circulating water process equipment based on a biochemical tank includes a biochemical tank 1 and an aeration assembly.
[0029] The biochemical tank 1 is placed inside the water body to be treated; the upper and lower parts of the biochemical tank 1 are provided with several holes 2; the aeration component is installed inside the biochemical tank 1 to provide air to the biochemical tank 1; the inside of the biochemical tank 1 is filled with MBBR fluidized bed packing.
[0030] In the above scheme, by setting up a biochemical tank and aeration components, the water is continuously circulated using the airlift principle, forming a process of continuous exchange between pond water and biochemical tank water. The MBBR fluidized bed packing inside the biochemical tank is used to treat the pond water, effectively reducing the ammonia nitrogen and nitrite content inside the fishpond.
[0031] The aeration assembly includes several aeration discs 3, which are connected to an external gas generating device. Specifically, there are four aeration discs 3 evenly distributed at the lower end of the biochemical tank 1, and each aeration disc has a 5-6 meter long φ25mm nanotube on its upper plate.
[0032] The diameter of the hole 2 is less than 5mm (to prevent fish and shrimp fry from entering, or to prevent leakage of K5 or K6 packing material, which has a diameter of 25mm). If it is used for wastewater treatment in aquaculture farms or food processing plants, the hole diameter can be larger, but less than the diameter of K5 or K6 packing material (25mm).
[0033] In this embodiment, the biochemical chamber 1 is made of PP board. Furthermore, several holes 2 are provided at the lower end of the side of the biochemical chamber 1.
[0034] In another embodiment of this utility model, to facilitate the addition of filler to the underwater biochemical tank, a filling assembly for adding filler to the interior of the biochemical tank 1 is also included. Specifically, the filling assembly includes a filling pipe 6 and a feeding structure. The feeding structure is disposed on one side of the biochemical tank 1, and the filling pipe 6 can cooperate with the feeding structure.
[0035] In this embodiment, the feeding structure further includes a feeding seat 4 and a baffle 5. The feeding seat 4 is provided with a feeding trough 7 that communicates with the interior of the biochemical tank 1. The baffle 5 is made of a material with high buoyancy. One end of the baffle 5 is hinged to the wall of the feeding trough 7, and the other end abuts against the lower end face of the limiting block 8 provided on the wall of the feeding trough 7. During the insertion of the feeding pipe 6 into the feeding trough 7, the baffle 5 rotates around the hinge point, thereby opening the feeding trough 7. Under normal conditions, the baffle abuts against the lower end face of the limiting block 8 under the action of buoyancy, thereby blocking the feeding trough and preventing the filler from leaking out of the feeding trough.
[0036] In order to enable the baffle to rotate smoothly during the process of the feeding pipe and the feeding trough, an abutment rod 9 is provided at the lower end of the feeding pipe 6 to drive the baffle 5 to rotate.
[0037] In the above scheme, when it is necessary to add filler to the inside of the biochemical tank, the filling tube is aligned with the feed trough and inserted into the feed trough. During this process, the abutment rod on one side of the lower part of the filling tube first contacts one end of the baffle and drives the baffle to rotate around the hinge, thereby opening the feed trough and adding filler. After the filler is added, the filling tube is taken out, and the baffle blocks the feed trough again under the action of buoyancy. This scheme makes it more convenient to add filler to the biochemical tank.
[0038] Specifically, taking a 6-cubic-meter biochemical chamber as an example (bottom diameter 2×2 meters, height 1.5 meters);
[0039] Drill holes at the bottom and sides of the biochemical tank, with a hole diameter of less than 5mm (to prevent fish and shrimp fry from entering, or to prevent leakage of K5 or K6 packing material, which has a diameter of 25mm). If it is used for wastewater treatment in aquaculture farms or food processing plants, the hole diameter can be larger, but still smaller than the diameter of K5 or K6 packing material (25mm).
[0040] The top of the box can be covered with a nylon mesh with a mesh size of less than 20mm (to prevent K5 or K6 from overflowing). Four nano-aeration discs with a diameter of 0.7 meters are evenly arranged at the bottom of the biochemical box. Each aeration disc has a 5-6 meter long φ25mm nanotube on it. There are a total of four such aeration discs.
[0041] If 60 kg of K5 or K6 biological packing (MBBR fluidized bed packing) is placed per cubic meter, then there will be a total of 240 kg of K5 packing in a 6 cubic meter biochemical chamber.
[0042] Each cubic meter is equipped with 50 watts of power to inflate the nano aeration discs. As mentioned above, a 6-cubic-meter biochemical chamber requires a total of 300 watts of power for oxygenation and aeration.
[0043] In actual operation, this 300-watt power is always on to handle the total nitrogen and COD generated during the fish and shrimp farming process.
[0044] Taking a 6-cubic-meter (as described above) biochemical tank as an example, it can treat 600 grams of ammonia nitrogen per day in 24 hours. If used in a 1-acre pond (1.5 meters deep), it is equivalent to reducing the ammonia nitrogen in the pond by 0.6 ppm per day.
[0045] Taking pond-cultured Pacific white shrimp as an example, this 6-cubic-meter biochemical tank, operating 24 hours a day, can process 600 grams of ammonia nitrogen. The capacity of the biochemical tank to process 600 grams of ammonia nitrogen alone is equivalent to a daily feed intake of 30 kg / mu. Calculated based on the shrimp's feed intake at the large shrimp stage being 2.5-3.0% of its body weight, the pond can support a shrimp production of 1000 kg / mu. If shrimp are harvested in batches, the production can reach 1500 kg / mu.
[0046] If the water quality ecological purification capacity of the other 660 square meters of the pond, excluding the biochemical tank, and the sewage discharge capacity are taken into account, this invention can also increase the planned output, achieving a stable output of more than 1,500 kg / mu for whiteleg shrimp. In the current domestic earthen pond farming of whiteleg shrimp, very few can achieve a stable output of more than 1,500 kg / mu.
[0047] As shown in the figure, the total aeration power of the four aeration discs is 300 watts. After the aeration discs in the biological tank are turned on, the 240 kg of K5 packing material inside is in a uniform rolling state. At the same time, the aeration gas rises. Utilizing the principle of air lifting, the upward force of the aeration discs drives the pond water through the holes at the bottom of the biological tank and into the biological tank. This pushes the water flow upward. As shown in the figure, the biological tank is submerged 10 cm below the surface of the pond water. The water that rises immediately disperses into the pond, thus forming a continuous circulation and exchange of pond water (the pond water and the water in the biological tank are constantly exchanged).
[0048] The biochemical tank continuously removes the total nitrogen from the pond water flowing in through the bottom holes, degrades the total nitrogen in the pond water entering the biochemical tank, and then continues to flow back into the pond. In this way, it continuously interacts and exchanges water with the pond, treating the total nitrogen in the pond, and can eventually significantly reduce the total nitrogen in the pond.
[0049] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.
Claims
1. A biochemical tank based recirculating water process equipment, characterized by: The utility model relates to a biochemical box (1) and aeration assembly. The biochemical box (1) is placed in the water body to be treated, the upper part and the lower part of the biochemical box (1) are provided with a plurality of holes (2), the aeration assembly is installed in the inside of the biochemical box (1) and is used for providing air for the biochemical box (1), and the inside of the biochemical box (1) is filled with MBBR fluidized bed filler.
2. The recirculating water process equipment based on a biochemical tank according to claim 1, characterized in that: The aeration assembly comprises a plurality of aeration discs (3), and the aeration discs (3) are communicated with external gas generating devices.
3. A recirculating water process equipment based on a biochemical tank according to claim 2, characterized in that: The aeration disc (3) is four and is uniformly distributed at the lower end of the inside of the biochemical box (1).
4. The recirculating water process equipment based on a biochemical tank according to claim 1, characterized in that: The diameter of the hole (2) is less than 5mm.
5. The recirculating water process equipment based on a biochemical tank according to claim 1, characterized in that: The biochemical box (1) is processed by pp plate.
6. The recirculating water process equipment based on a biochemical tank according to claim 1, characterized in that: The lower end of the side of the biochemical box (1) is also provided with a plurality of holes (2).
7. The recirculating water process equipment based on a biochemical tank according to claim 1, characterized in that: The utility model also comprises a material adding assembly for adding filler in the inside of the biochemical box (1).
8. A recirculating water process equipment based on a biochemical tank according to claim 7, characterized in that: The material adding assembly comprises a material adding pipe (6) and a feeding structure, the feeding structure is arranged on one side of the biochemical box (1), and the material adding pipe (6) can cooperate with the feeding structure.
9. A recirculating water process equipment based on a biochemical tank according to claim 8, characterized in that: The feeding structure comprises a feeding seat (4) and a baffle (5), the feeding seat (4) is provided with a feeding groove (7) communicated with the inside of the biochemical box (1), the baffle (5) is made of material with large buoyancy, one end of the baffle (5) is hinged with the groove wall of the feeding groove (7), the other end is abutted with the lower end surface of a limiting block (8) arranged on the groove wall of the feeding groove (7), and the material adding pipe (6) is inserted into the feeding groove (7) to drive the baffle (5) to rotate around the hinge to open the feeding groove (7).
10. A recirculating water process equipment based on a biochemical tank according to claim 9, characterized in that: The lower end of the material adding pipe (6) is provided with an abutment rod (9) for driving the baffle (5) to rotate.