Device and method for factory-like circulating water culture of mandarin shrimps in water electrolysis mode

Abstract

According to the device and method for factory-like circulating water culture of the mandarin shrimps in the water electrolysis mode, water electrolysis equipment is used for replacing a protein separator, a biochemical treatment pond, an ultraviolet sterilization device and other large-scale equipment, a microfilter is used in cooperation, the occupied area of water treatment facilities and equipment is greatly reduced, and the production cost is reduced. And chlorine-containing compounds generated by electrolyzed water kill pathogenic microorganisms in water, so that the energy consumption is greatly reduced, pathogenic bacteria are killed, and normal growth of cultured objects is ensured. The production cost is reduced, the profit is improved, and the pollution of tail water discharge to the environment is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of aquaculture, relates to the cultivation of king prawns, and specifically relates to a device and a method for factory-scale circulating water cultivation of king prawns in an electrolyzed water mode. Background Art

[0002] King Kong shrimp is also known as African giant tiger shrimp. The parent of this shrimp comes from wild African giant tiger shrimp. King Kong shrimp has a wide adaptability and is suitable for water temperatures of 25~32℃. It eats less when the temperature is below 20℃. It is large in size, with the maximum individual length reaching 33cm and weighing 500~600g. It grows fast and can be stocked at 20,000~30,000 / 667m. 2 , when the water temperature is above 27℃ and the salinity is 10‰ ~ 25‰, the market size of 40 shrimps / kg can be reached in 60 days. At the same time, King Kong shrimp is omnivorous, disease-resistant, drought-resistant and hypoxic-resistant. In 2017, my country began to breed it on a small scale, and the price is more than three times that of white shrimp, and the unit output value can be increased by 20% -30%.

[0003] In the aspect of factory-scale circulating water aquaculture, traditional water treatment is to control the spread and invasion of pathogenic microorganisms through a closed environment, but it is unavoidable. The water is treated by microfiltration, protein separator, biochemical treatment pool, ultraviolet sterilization, pump pool oxygenation and then flows back to the shrimp pond. Harmful substances such as inorganic matter, organic matter and ammonia nitrogen in the water body can be recycled after physical, chemical and biological treatment. This treatment method leads to high energy consumption of various equipment, large equipment area, difficulty in maintenance and repair of various equipment, and inability to solve the problems of pathogen invasion.

[0004] Electrolyzed water refers to water that has undergone a chemical reaction after electrolysis, and alkaline electrolyzed water and acidic electrolyzed water are obtained at the yin and yang levels respectively. Among them, acidic electrolyzed water has a strong oxidizing ability and contains a certain concentration of chlorine compounds, which can penetrate the cell membrane of microorganisms and cause the death of bacteria. The concentration is not toxic to the cultured objects, thus avoiding shrimp infection with various pathogens during the breeding process. Summary of the invention

[0005] The present invention aims at solving the above problems and provides a device and method for aquaculture of King Kong shrimp in a factory-scale circulating water under the electrolysis water mode. The water electrolysis equipment replaces large-scale equipment such as protein separators, biochemical treatment pools, and ultraviolet sterilization, while ensuring that aquaculture is more efficient.

[0006] In order to achieve the above object, the specific technical solutions adopted by the present invention are as follows:

[0007] In a first aspect, the present invention provides a device for culturing King Kong shrimp in a factory-scale circulating water under an electrolyzed water mode, comprising a culture pond or a culture pond group, a microfilter connected to the culture pond or the culture pond group, and a water electrolysis device. The water electrolysis device is directly connected to the culture pond or the culture pond group or installed downstream of the microfilter; the culture pond or the culture pond group is provided with a plurality of water inlets, which are connected to the water outlet pipe of the water electrolysis device.

[0008] Preferably, in addition to the above components, the breeding pond or breeding pond group is also provided with electric wires, air pipes, heating pipes, and an automatic feeding device and an aeration plate, which are all standard accessories of the breeding pond and can be configured according to the prior art.

[0009] Preferably, the present invention adopts a diaphragm electrolysis oxidation water purification system, and the water electrolysis equipment is mainly an IEM diaphragm electrolysis water treatment unit. The device is cylindrical, and a cylindrical cathode, a diaphragm and a cylindrical anode are installed in sequence from the inside to the outside. The equipment is placed in a PP environmentally friendly material of appropriate size and injected with circulating aquaculture seawater.

[0010] The device of the present invention includes two forms, one form is a single breeding pond, two diagonal positions are each provided with a microfilter, and a water electrolysis device is provided at another corner; the number of breeding ponds after water injection is more than 10, and they are connected to the water outlet pipe of the water electrolysis device through a main pipe. Preferably, the water injection port of the water electrolysis device is connected to a water pump, and the water pumping capacity per hour of the water pump is 1 / 10 of the water treatment capacity per hour of a single microfilter, and the water treatment capacity per hour of the microfilter is 1 / 100 of the water volume contained in the breeding pond.

[0011] Another form is a breeding pool group, which consists of multiple breeding pools, each of which is connected to a microfiltration machine through a drainage pipe; after the water outlet of the microfiltration machine, there are two pipes A and B, and the water flow of pipe A is greater than that of pipe B. The water flow of pipe B passes through the water electrolysis equipment and then connects to pipe A to form a pipe and then circulates into the breeding pool

[0012] Preferably, the unit water treatment volume of the microfilter is 1 / 50 of the water volume contained in the aquaculture pond group; pipeline A accounts for 90% of the water flow rate of the microfilter, and pipeline B accounts for 10% of the water flow rate.

[0013] In a second aspect, the present invention provides a method for culturing king prawns in a factory-scale circulating water under an electrolyzed water mode, comprising the following steps: starting culturing in June, requiring the water temperature to be between 25°C and 30°C, the salinity to be above 15 degrees, the ammonia nitrogen content in the water body to be no more than 0.15 mg / L, maintaining the pH value of seawater at 7.8 to 9.0, and the dissolved oxygen to be 8.2 mg / L on average; feeding twice a day, 40% in the morning and 60% in the evening; feeding at about 8% of the total biomass in the early stage, feeding at about 5% of the total biological weight in the middle stage, and feeding at about 3% of the total biomass in the late stage; after about 100 days, the cultured king prawns can reach 40 heads / jin.

[0014] Preferably, the density of shrimp fry in the water is guaranteed to be 100,000 / 1000m during the whole breeding process. 3 When breeding ponds are used for breeding, the water capacity of a single breeding pond is used for calculation; Cl is controlled during the whole breeding process. - The concentration is below 0.07 mol / L.

[0015] The technical effects of the technical solution of the present invention are as follows:

[0016] The present invention provides a method for reducing energy consumption, eliminating pathogenic bacteria and ensuring normal growth of aquaculture objects in the case of seawater factory-scale circulating water aquaculture with water electrolysis equipment running, thereby avoiding environmental pollution caused by tail water discharge.

[0017] The present invention replaces large-scale equipment such as protein separators, biochemical treatment pools, and ultraviolet disinfection. The use of a microfilter greatly reduces the footprint of water treatment facilities and equipment. The chlorine-containing compounds produced by electrolyzing water kill pathogenic microorganisms in the water body, ensuring the healthy growth of aquaculture objects during the aquaculture process, reducing costs and increasing profits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram showing the structure of the device for industrialized circulating water culture of King Kong shrimp in the water electrolysis mode in Example 1;

[0019] Figure 2 A schematic diagram of the structure of the device for industrial-scale circulating water culture of King Kong shrimp in the water electrolysis mode in Example 2 is shown. DETAILED DESCRIPTION

[0020] The following examples and experimental examples are provided to further illustrate the present invention and should not be construed as limiting the present invention. The examples do not include detailed descriptions of conventional methods and structures, which are well known to those skilled in the art and are described in many publications.

[0021] Unless otherwise defined, all professional and scientific terms used herein have the same meanings as those familiar to those skilled in the art. In addition, any method and structure similar or equivalent to the described content can be applied to the present invention, and the preferred implementation methods and materials described in the specific implementation methods are only for demonstration purposes.

[0022] Example 1

[0023] according to Figure 1 , a Jingang shrimp circulating water breeding workshop at a breeding base in Ninghai, Zhejiang, uses a rectangular breeding pool 10, which is a canvas pool with a specification of 8 meters * 100 meters * 1.2 meters and can hold 960 tons of water. A microfilter 11 with a unit water treatment capacity of 10T / H is placed in one corner of the canvas pool, and another one is placed in the opposite corner to ensure water renewal and circulation. A water electrolysis device 12 (water environment treatment equipment) is placed in one corner. The equipment connection voltage is 220V, and a water pump 13 is connected. The water pumping capacity is selected as 1T / H. After the water pump pumps water into the electrolysis equipment, it is evenly injected into the breeding pool through the pipeline 14. The number of water injection ports 15 is more than 10. The Cl- concentration in the water should be below 0.07mol / L throughout the breeding process. In addition, wires, air pipes, heating pipes 16, etc. are laid in the breeding pool, and automatic feeding devices, aeration plates 17, heating pipes, etc. are installed.

[0024] 100,000 King Kong shrimp fry were released and cultured from June. The water temperature was required to be between 25℃ and 30℃, the salinity was above 15 degrees, the ammonia nitrogen in the water body should not exceed 0.15mg / L, the pH value of seawater should be maintained at 7.8-9.0, and the dissolved oxygen should be 8.2mg / L on average. Feed twice a day, 40% in the morning and 60% in the evening. Feed about 8% of the total biomass in the early stage, about 5% of the total biological weight in the middle stage, and about 3% of the total biomass in the late stage. After about 100 days, the cultured King Kong shrimp can reach 40 heads / jin, reaching the sales specifications.

[0025] Example 2

[0026] according to Figure 2In a circulating water aquaculture workshop of King Kong shrimp in a breeding base in Ninghai, Zhejiang, a breeding pond group 20 is used for breeding. The breeding pond group 20 is composed of multiple circular galvanized sheet canvas pools 21. The specifications of a single circular galvanized sheet canvas pool are 6 meters and 1.2 meters. The number of canvas pools is two rows, 15 in each row, a total of 30, and a total of about 1,000 tons of water. A drainage pipe 22 is used to connect each breeding pond to a microfilter 23 with a unit water treatment capacity of 20T / H. After the microfilter, there are two pipes. Pipe A 24 accounts for 90% of the water flow; Pipe B 25 accounts for 10% of the water flow. The water in pipe B passes through the water electrolysis equipment 26 (water environment treatment equipment) device and then connects to pipe A 24 to form a pipeline and then circulates into the breeding pond. The connection voltage of the electrolysis equipment (water environment treatment equipment) is 220V. The Cl- concentration in the water should be below 0.07mol / L during the entire breeding process. In addition, electrical wires, air pipes, heating pipes, etc. are laid in the circular galvanized canvas pool, and automatic feeding devices, aeration plates, heating pipes, etc. are installed.

[0027] After the King Kong shrimp is marked, each canvas pond can be filled with 5,000 to 10,000 shrimp fry. The breeding starts in June. The water temperature is required to be 25℃-30℃, the salinity is above 15 degrees, the ammonia nitrogen in the water body does not exceed 0.15mg / L, the pH value of seawater is maintained at 7.8-9.0, and the dissolved oxygen is 8.2mg / L on average. Feed twice a day, 40% in the morning and 60% in the evening. Feed about 8% of the total biomass in the early stage, about 5% of the total biological weight in the middle stage, and about 3% of the total biomass in the late stage. After about 100 days, the cultured King Kong shrimp can reach 40 heads / jin, reaching the sales specifications.

[0028] The unexplained parts involved in the present invention are the same as the prior art or are implemented by the prior art. The applicant declares that the present invention illustrates the detailed method of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned detailed method, that is, it does not mean that the present invention must rely on the above-mentioned detailed method to be implemented. Those skilled in the art should understand that any improvement of the present invention, the equivalent replacement of the raw materials of the product of the present invention, the addition of auxiliary components, the selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A device for industrial-scale circulating water culture of King Kong shrimp in electrolyzed water mode, characterized in that: It includes a breeding pond or a breeding pond group, a microfiltration machine and a water electrolysis device connected to the breeding pond or the breeding pond group, The water electrolysis device is directly connected to the breeding pool or breeding pool group or installed downstream of the microfiltration machine; the breeding pool or breeding pool group is provided with a plurality of water inlets which are connected to the water outlet pipe of the water electrolysis device.

2. The device for industrialized circulating water culture of King Kong shrimp in electrolyzed water mode according to claim 1, characterized in that: The culture pond or culture pond group is also provided with electric wires, air pipes, heating pipes, and is installed with an automatic feeding device and an aeration plate.

3. The device for industrialized circulating water culture of King Kong shrimp in electrolyzed water mode according to claim 1, characterized in that: The water electrolysis equipment is mainly an IEM diaphragm electrolysis water treatment unit. The device is cylindrical, with a cylindrical cathode, diaphragm and cylindrical anode installed in sequence from the inside to the outside.

4. The device for industrialized circulating water culture of King Kong shrimp in electrolyzed water mode according to claim 1, characterized in that: The breeding pond is a single breeding pond, with a microfiltration machine arranged at each of the two diagonal positions, and the water electrolysis equipment arranged at another corner; the breeding pond has more than 10 water inlets, which are connected to the water outlet pipe of the water electrolysis equipment through a main pipe.

5. The device for industrialized circulating water culture of King Kong shrimp in electrolyzed water mode according to claim 4, characterized in that: The water inlet of the water electrolysis equipment is connected to a water pump, and the water pumping capacity of the water pump per hour is 1 / 10 of the water treatment capacity of a single microfiltration machine per hour, and the water treatment capacity specification of the microfiltration machine per hour is 1 / 100 of the water volume contained in the breeding pond.

6. The device for industrialized circulating water culture of King Kong shrimp in electrolyzed water mode according to claim 1, characterized in that: The culture pond group is composed of a plurality of culture ponds, and each culture pond is connected to a microfilter through a drainage pipe; after the water outlet of the microfilter, two pipes A and B are divided, and the water flow of pipe A is greater than that of pipe B. The water flow of pipe B passes through the water electrolysis equipment and is then connected to pipe A to form a pipe, which is then circulated and injected into the culture pond.

7. The device for industrialized circulating water culture of King Kong shrimp in electrolyzed water mode according to claim 6, characterized in that: The unit water treatment volume of the microfiltration machine is 1 / 50 of the water volume of the breeding pond group; Pipe A accounts for 90% of the water flow of the microfilter, and pipe B accounts for 10% of the water flow.

8. A method for culturing King Kong shrimp in industrialized circulating water in electrolyzed water mode, characterized in that: The method is carried out using the device described in any one of claims 1 to 6, comprising the following steps: starting breeding from June, with the water temperature required to be between 25°C and 30°C, the salinity being above 15 degrees, the ammonia nitrogen content in the water body not exceeding 0.15 mg / L, the pH value of seawater being maintained at 7.8 to 9.0, and the dissolved oxygen being 8.2 mg / L on average; feeding twice a day, 40% in the morning and 60% in the evening; feeding at about 8% of the total biomass in the early stage, at about 5% of the total biological weight in the middle stage, and at about 3% of the total biomass in the late stage; after about 100 days, the cultured King Kong shrimp can reach 40 heads / jin.

9. The method according to claim 8, characterized in that Ensure that Cl in water is high during the entire breeding process - The concentration is below 0.07 mol / L.

10. The method according to claim 8, characterized in that The stocking density of shrimp fry is 100,000 / 1000m 3 .

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