Energy-saving eleutheronema tetradactylum pond culture system
By installing photovoltaic power generation equipment and tailwater treatment systems on the aquaculture tailwater treatment pond, combined with filter brushes and biological floating beds, the problems of pond water pollution and high electricity costs were solved, and efficient tailwater treatment and energy saving effects were achieved.
Patent Information
- Application Number
- CN202422569491.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The existing high-density aquaculture in ponds has caused serious water pollution, fish are under stress and electricity costs are high, and photovoltaic power generation equipment affects the water ecological environment.
Photovoltaic power generation equipment is installed on the water surface of the aquaculture tailwater treatment pond. Combined with tailwater treatment equipment, fish pond filter brushes, biological floating beds and aquatic plants, three-dimensional and efficient tailwater treatment is achieved, photovoltaic power generation is used to supply power and reduce electricity costs.
It achieves efficient tailwater treatment, reduces breeding costs, improves fish survival rate and water ecological environment quality, and enhances the economic value per unit area.
Smart Images
Figure CN223403091U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fish breeding, and particularly relates to an energy-saving four-fingered threadfin bream pond breeding system. Background Art
[0002] Four-finger threadfin flounder (Elentheronema tetradactylum), commonly known as "Mayou," "Wusun," "Wusunyu," and "Carp Queen," is found in the western Pacific and Indian Oceans and throughout my country's waters, with abundance particularly in southern China. It belongs to both tropical and temperate zones, inhabiting coastal waters, harbors, and estuaries. This fish grows rapidly, has tender and delicious meat, and with ample aquaculture space and a large consumer base, it holds a promising market prospect.
[0003] Currently, high-density pond aquaculture is the most common practice in my country. Traditional aquaculture methods discharge large amounts of leftover bait and feces into the water, leading to increasingly serious pollution of aquaculture effluent. The main pollutants in aquaculture effluents include ammonia nitrogen, nitrites, organic matter, phosphorus, and fouling organisms. If aquaculture effluents are not promptly and effectively treated, they will not only deteriorate the aquaculture water environment but also cause injuries and even widespread mortality among fish, especially those with aggressive temperaments such as threadfin fins. Furthermore, in production practices, operational stress is an unavoidable stress factor for fish. This includes water changes, sewage disposal, netting, capture, removal from the water, and transportation, all of which often cause certain stress to the fish.
[0004] Therefore, it is an urgent problem to achieve sewage treatment in aquaculture ponds while avoiding stress on four-fingered threadfin bream.
[0005] In addition, aquaculture ponds generally require various supporting equipment, such as aerators, water pumps, and winter insulation equipment, all of which consume a huge amount of electricity. To better save electricity costs, the existing technology provides an integrated fish-light aquaculture system, which is equipped with photovoltaic power generation equipment. The solar panels of the photovoltaic power generation equipment are arranged on the aquaculture pond. The electricity generated by the photovoltaic power generation equipment is used to maintain the equipment required for aquaculture, achieving zero emissions. The electricity is also used to power aerators, water pumps, winter insulation equipment, etc. Innovative aquaculture production technology can improve aquaculture efficiency and the quality and safety of aquatic products. This is a goal that the industry is currently striving to explore.
[0006] However, since solar photovoltaic panels block light from the water in the aquaculture pond, it will affect the growth of phytoplankton, photosynthetic bacteria, etc. in the water, thereby affecting the ecological environment and primary productivity in the water and reducing production. Utility Model Content
[0007] The purpose of the utility model is to provide an energy-saving four-fingered threadfin fry pond breeding system, which realizes the tail water treatment of the four-fingered threadfin fry pond, saves electricity costs through the installation of photovoltaic power generation equipment, and innovates the breeding production technology.
[0008] The purpose of this utility model is achieved through the following technical solutions:
[0009] An energy-saving four-finger threadfin fry pond aquaculture system, comprising a photovoltaic power generation device and at least one four-finger threadfin fry pond, characterized in that it also comprises a tailwater treatment device and a tailwater treatment pool in which omnivorous aquatic animals are cultured, the solar photovoltaic panels of the photovoltaic power generation device are arranged on the water surface of the tailwater treatment pool, the electricity generated by the photovoltaic power generation device is supplied to the four-finger threadfin fry pond aquaculture system, a pre-treatment channel is provided at the front end of the tailwater treatment pool, a fish pond filter brush is arranged in the pre-treatment channel, and at least one tailwater treatment pool is provided above the tailwater treatment pool. A biological floating bed planted with aquatic plants; a first water pump is provided in the four-fingered threadfin fry breeding pond, through which the bottom water of the four-fingered threadfin fry breeding pond is pumped into the tailwater treatment equipment, the tailwater treatment equipment is used to perform preliminary solid-liquid separation on the water, the output end of the tailwater treatment equipment is connected to one end of the pre-treatment channel through a channel or a pipeline, the other end of the pre-treatment channel is provided with a second water pump, through which the water at the other end of the pre-treatment channel is pumped into the biological floating bed, and the water treated in the breeding tailwater treatment pool will be transported to the four-fingered threadfin fry breeding pond.
[0010] A further technical solution of the utility model is that the solar photovoltaic panels are arranged in a matrix.
[0011] A further technical solution of the present invention is: the elevation angle of the solar photovoltaic panel is 22 degrees.
[0012] A further technical solution of the present invention is that the ratio of the area of the solar photovoltaic panel to the area of the aquaculture tailwater treatment pond is less than or equal to 1 / 5.
[0013] A further technical solution of the utility model is that the aquaculture tailwater treatment pool accounts for 5% of the area of the four-fingered threadfin fry aquaculture pond.
[0014] A further technical solution of the utility model is that the ratio of the area of the biological floating bed to the area of the aquaculture tailwater treatment pond is less than 10%.
[0015] A further technical solution of the utility model is that an aerator is respectively provided in the four-finger threadfin bream breeding pond and the breeding tail water treatment pool.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. The utility model is provided with a photovoltaic power generation device, and the solar photovoltaic panels of the photovoltaic power generation device are arranged on the water surface of the aquaculture tailwater treatment pool, and the electricity generated by the photovoltaic power generation device is provided to the entire four-fingered threadfin bream pond aquaculture system for use, thereby realizing a three-dimensional and efficient tailwater treatment method that effectively generates electricity on the water surface and normally carries out underwater ecological treatment, realizes the complementary effect of fish and light, and has the characteristics of dual use of one pond, greatly improves the economic value of water per unit area, and reduces aquaculture production costs.
[0018] 2. The utility model treats the tail water generated by the aquaculture by using tail water treatment equipment and aquaculture tail water treatment pool separately provided outside the four-fingered threadfin fry aquaculture pond, thereby avoiding casualties caused by the four-fingered threadfin fry's irritable temperament and sensitivity to environmental stress, and ensuring a high survival rate of the aquaculture population.
[0019] 3. The utility model treats the tail water by combining the tail water treatment equipment, the pre-treatment channel equipped with the fish pond filter brush, the biological floating bed planted with aquatic plants, and the aquaculture tail water treatment pool for breeding omnivorous aquatic animals. It has a strong comprehensive treatment capacity and can more effectively make the treated tail water meet the standards. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of a four-fingered threadfin fry pond culture system according to an embodiment of the present invention.
[0021] Meaning of the reference numerals in the figure:
[0022] 1- Four-finger threadfin bream breeding pond; 2- Tailwater treatment equipment; 3- Channel or pipeline; 4- Pre-treatment channel; 5- Breeding tailwater treatment pool; 6- Aerator; 7- Solar photovoltaic panel; 8- Biological floating bed; 9- Fish pond filter brush. DETAILED DESCRIPTION
[0023] The present invention is further described below in conjunction with the embodiments.
[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0025] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.
[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0027] Example:
[0028] like Figure 1 The figure shows the energy-saving four-fingered threadfin fry pond aquaculture system of this embodiment, which includes photovoltaic power generation equipment, at least one four-fingered threadfin fry aquaculture pond 1, tailwater treatment equipment 2 and aquaculture tailwater treatment pool 5. The tailwater treatment equipment 2 and the aquaculture tailwater treatment pool 5 constitute a tailwater treatment system. The tailwater treatment indicators are: pH ≥ 6.0, suspended solids ≤ 100 mg / L, chemical oxygen demand ≤ 25 mg / L, total phosphorus ≤ 1.0 mg / L, and total nitrogen ≤ 5.0 mg / L.
[0029] In this embodiment, the area of the aquaculture tailwater treatment pool 5 is 16 mu, and the area of the four-finger threadfin fry aquaculture pond 1 is about 295 mu. The aquaculture tailwater treatment pool accounts for about 5% of the area of the four-finger threadfin fry aquaculture pond.
[0030] The photovoltaic power generation equipment is equipped with energy storage batteries, solar photovoltaic panels, control boxes and other conventional supporting devices. The control box is connected to the energy storage batteries, solar photovoltaic panels 7, mains electricity and other wires. The solar photovoltaic panels 7 are installed on the water surface of the aquaculture tailwater treatment pool 5 through conventional water floating frames. The installation direction of the solar photovoltaic panels 7 is facing due south, and the installation elevation angle is about 22 degrees. Multiple solar photovoltaic panels 7 are arranged in a matrix, and the distance between the solar photovoltaic panels 7 must ensure that the front row does not block the back row. In this embodiment, the ratio of the area of the solar photovoltaic panels 7 to the area of the aquaculture tailwater treatment pool 5 is less than or equal to 1 / 5, and the area of solar photovoltaic panels 7 installed on the water surface of the aquaculture tailwater treatment pool 5 per acre is approximately 133m 2 .
[0031] For the solar photovoltaic panel 7 of this embodiment, the annual power generation is about 1000-1500 kWh / m 2 The area of solar photovoltaic panels installed on 16 mu of water surface is about 2000m 2The electricity generated by the photovoltaic power generation equipment will be used by the Four-Finger Threadfin Mackerel Pond Aquaculture System. Under normal climatic conditions, the entire Four-Finger Threadfin Mackerel Pond Aquaculture System can save about 20% of electricity during the treatment process.
[0032] In this embodiment, a first water pump is provided in the four-finger threadfin fry breeding pond. The first water pump is used to pump the water with high nutrient salt content at the bottom of the four-finger threadfin fry breeding pond to the tailwater treatment equipment 2. The tailwater treatment equipment 2 is a conventional device for performing preliminary solid-liquid separation on the pond water. The tailwater treatment equipment 2 achieves preliminary solid-liquid separation by rapid centrifugation, separating most of the residual bait and feces in the pond water. In this embodiment, two sets of tailwater treatment equipment 2 are provided, and the flow rate of each set of tailwater treatment equipment 2 is 100m 3 / h, power is 3k, and the tailwater treatment equipment runs 24 hours a day.
[0033] In the aquaculture tailwater treatment pond 5 of this embodiment, omnivorous aquatic animals are cultured. The omnivorous aquatic animals are generally milkfish, mullet, oyster, clam, mussel, etc. The stocking rate of milkfish and mullet is about 50 per mu, and the stocking rate of clams and mussels is about 10 grains / m 2 .
[0034] The ecological basis for the release of shellfish such as clams and river mussels is as follows: the water filtration rates (chlorophyll) of clams, river mussels and other shellfish are (0.362±0.064)L / (gh) and (0.204±0.046)L / (gh), respectively, and the organic particulate matter (POM) in the water are (0.3356±0.0305)L / (gh) and (0.1535±0.0428)L / (gh), respectively. One river mussel can filter 105L of water in 24 hours, which shows that most organic impurities in the water can be filtered out.
[0035] The ecological rationale for stocking omnivorous fish such as milkfish and mullet is that mullet's stomach contents consist of decaying organic matter, accounting for 38-50% of their total food intake. During the breeding season, their diet primarily consists of floating diatoms, which grow on the bottom or algae, accounting for 72% of their total food intake. In brackish water ponds, milkfish feed on bottom-dwelling diatoms, blue-green algae, filamentous algae, and organic debris.
[0036] A pre-treatment channel 4 is provided at the front end of the aquaculture tailwater treatment pond 5. A fish pond filter brush 9 is arranged within the pre-treatment channel 4. At least one biofloating bed 8 is provided above the aquaculture tailwater treatment pond 5. Aquatic plants are planted on the biofloating bed 8. The ratio of the area of the biofloating bed 8 to the area of the aquaculture tailwater treatment pond 5 is generally less than 10%. The aquatic plants on the biofloating bed 8 are typically water spinach, water celery, and the like.
[0037] The ecological basis for the placement of aquatic plants is that the eutrophication components in the water of the biological floating bed where water spinach is placed can drop rapidly. When it drops to 40 days, the chemical oxygen demand is reduced by more than 60%, and the removal rate of total N and water-soluble P in the pond is as high as more than 90%.
[0038] The output end of the tailwater treatment equipment 2 is connected to one end of the pre-treatment channel 4 via a channel or pipe 3. A second water pump is installed at the other end of the pre-treatment channel 4. During operation, the water, after initial separation by the tailwater treatment equipment 2, is transported to one end of the pre-treatment channel 4. There, the water flows through the fish pond filter brushes 9. At the other end of the pre-treatment channel 4, the water is pumped by the second water pump onto the bio-floating bed 8. After passing through the bio-floating bed 8, the water slowly overflows into the aquaculture tailwater treatment tank 5. The treated water in the aquaculture tailwater treatment tank 5 is then transported to the four-fingered threadfin trout aquaculture pond 1 via a channel or pump.
[0039] In this embodiment, a 1.5 kW fountain-type aerator 6 is respectively set on each mu of water surface, which operates 24 hours a day. The four-finger threadfin bream breeding pond 1 can also be provided with conventional wintering insulation equipment.
[0040] During the breeding process of the four-fingered threadfin fry pond aquaculture system of this embodiment, the four-fingered threadfin fry will be cultured in the four-fingered threadfin fry pond 1, and there can be multiple four-fingered threadfin fry ponds 1. When tailwater treatment is required, a first water pump is used to pump the water with high nutrient salt content at the bottom of the four-fingered threadfin fry pond 1 into the tailwater treatment equipment 2. The tailwater treatment equipment 2 performs preliminary solid-liquid separation on the water to separate most of the residual bait and feces in the pond water. The water after preliminary separation by the tailwater treatment equipment 2 is transported to one end of the pre-treatment channel 4 through a channel or pipe 3. After flowing through the fish pond filter brush 9, it is pumped onto the biological floating bed 8 at the other end of the pre-treatment channel 4. After passing through the biological floating bed 8, it slowly overflows into the aquaculture tailwater treatment pool 5. In the aquaculture tailwater treatment pool 5, it is purified by omnivorous aquatic animals and then transported to the four-fingered threadfin fry pond 1 through a water channel or water pump.
[0041] After use, the four-finger threadfin fry pond aquaculture system of this embodiment was tested by a testing agency with national metrology certification. The pH of the aquaculture water was 7.3, the suspended solids were 12 mg / L, the total nitrogen was 4.87 mg / L, and the total phosphorus was 0.93 mg / L, all of which met the secondary standards of the "Freshwater Pond Aquaculture Water Discharge Requirements" (SC / T9101-2007) and the "Seawater Pond Aquaculture Water Discharge Requirements" (SC / T9102-2007). The discharged treated water is transported to the four-finger threadfin fry pond via a canal or water pump.
[0042] The above embodiments of the present invention are not intended to limit the scope of protection of the present invention, and the implementation methods of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structure of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in this field, without departing from the above basic technical ideas of the present invention, should fall within the scope of protection of the present invention.
Claims
1. An energy-saving four-fingered threadfin fry pond culture system, comprising a photovoltaic power generation device and at least one four-fingered threadfin fry culture pond, characterized in that: The system also includes tailwater treatment equipment and a tailwater treatment pond in which omnivorous aquatic animals are cultured. The solar photovoltaic panels of the photovoltaic power generation equipment are arranged on the water surface of the tailwater treatment pond. The electricity generated by the photovoltaic power generation equipment is supplied to the four-fingered threadfin fry pond aquaculture system. A pre-treatment channel is provided at the front end of the tailwater treatment pond. The pre-treatment channel is provided with fish pond filter brushes. At least one biological floating bed planted with aquatic plants is provided above the tailwater treatment pond. A first water pump is provided in the four-fingered threadfin fry pond for pumping water from the bottom of the four-fingered threadfin fry pond into the tailwater treatment equipment. The tailwater treatment equipment is used to perform preliminary solid-liquid separation on the water. The output end of the tailwater treatment equipment is connected to one end of the pre-treatment channel via a channel or pipe. A second water pump is provided at the other end of the pre-treatment channel for pumping water from the other end of the pre-treatment channel onto the biological floating bed. The water treated in the tailwater treatment pond is then transported to the four-fingered threadfin fry pond.
2. The energy-saving four-fingered threadfin fry pond culture system according to claim 1, characterized in that: The solar photovoltaic panels are arranged in a matrix.
3. The energy-saving four-fingered threadfin fry pond culture system according to claim 1, characterized in that: The elevation angle of the solar photovoltaic panel is 22 degrees.
4. The energy-saving four-fingered threadfin fry pond culture system according to claim 1, characterized in that: The ratio of the area of the solar photovoltaic panel to the area of the aquaculture tailwater treatment pond is less than or equal to 1 / 5.
5. The energy-saving four-fingered threadfin fry pond culture system according to claim 1, characterized in that: The aquaculture tailwater treatment pool accounts for 5% of the area of the four-fingered threadfin bream aquaculture pond.
6. The energy-saving four-fingered threadfin fry pond culture system according to claim 1, characterized in that: The ratio of the area of the biological floating bed to the area of the aquaculture tailwater treatment pond is less than 10%.
7. The energy-saving four-fingered threadfin fry pond culture system according to claim 1, characterized in that: Aerators are respectively provided in the four-finger threadfin bream breeding pond and the breeding tail water treatment pool.