CN113179998A - Land-based round pond fish-vegetable symbiotic recirculating aquaculture system - Google Patents
Land-based round pond fish-vegetable symbiotic recirculating aquaculture system Download PDFInfo
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- 238000009360 aquaculture Methods 0.000 title claims description 29
- 244000144974 aquaculture Species 0.000 title claims description 29
- 230000003134 recirculating effect Effects 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 241000251468 Actinopterygii Species 0.000 claims abstract description 51
- 235000013311 vegetables Nutrition 0.000 claims abstract description 44
- 239000010865 sewage Substances 0.000 claims abstract description 19
- 238000003501 co-culture Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 10
- 241000196324 Embryophyta Species 0.000 claims description 30
- 239000002028 Biomass Substances 0.000 claims description 9
- 239000001963 growth medium Substances 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000008635 plant growth Effects 0.000 claims description 6
- 238000012258 culturing Methods 0.000 claims description 5
- 230000029553 photosynthesis Effects 0.000 claims description 4
- 238000010672 photosynthesis Methods 0.000 claims description 4
- 241000498251 Hydrilla Species 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 241000195493 Cryptophyta Species 0.000 claims 2
- 239000002609 medium Substances 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000195940 Bryophyta Species 0.000 description 2
- 244000269722 Thea sinensis Species 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/10—Devices for affording protection against animals, birds or other pests
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention relates to the technical field of circulating water culture, in particular to a land-based round pond fish-vegetable symbiotic circulating water culture system, which realizes the technical upgrade of the existing fish-vegetable symbiotic culture mode through the reasonable layout of each culture functional module and the optimized upgrade of key modules; all modules of the system are built on land and comprise eight modules, wherein the eight modules are respectively a cylindrical culture pond, a sewage filtering and buffering pond, a disinfection, biochemical and fish and vegetable co-culture pond, a submerged plant factory and a circulating pump, the modules are directly connected through pipelines, and key nodes connected by the modules are provided with a plurality of flow dividing valves for controlling the flow of different branches.
Description
Technical Field
The invention relates to the technical field of recirculating aquaculture, in particular to a land-based round pond fish-vegetable symbiotic recirculating aquaculture system.
Background
As is well known, a land-based round pond fish-vegetable symbiotic circulating aquaculture system is a system for circulating aquaculture of fish-vegetable symbiosis, and is widely used in the field of circulating aquaculture; the industrial Recirculating aquaculture (called circulating aquaculture systems for short RAS abroad) has the characteristics of low water consumption, small occupied area, high aquaculture density, high yield, good benefit, strong aquaculture environment controllability and the like, can solve the problems of quality reduction, aquaculture environment deterioration, frequent diseases of aquaculture objects and the like of traditional aquaculture aquatic products, realizes green and healthy aquaculture, has good social, economic and ecological benefits, and is a necessary trend for the development of aquaculture industry.
At present, the following defects exist in the industrial recirculating aquaculture mode which is popularly developed across the country:
1. the water change of the culture pond adopts a mode of entering and exiting at the same time, and the water change is insufficient; the tea cup effect is not obvious in the drainage process, and the drainage effect is not good.
2. The existing factory-like circulating water culture usually adopts a one-way circulating water treatment mode, and the failure of any one intermediate link can cause the stop of the whole culture system and the irreparable loss.
Disclosure of Invention
In order to solve the technical problems, the invention provides a land-based round pond fish-vegetable symbiotic circulating water culture system which realizes the technical upgrade of the existing fish-vegetable symbiotic culture mode through the reasonable layout of each culture functional module and the optimized upgrade of key modules.
The invention relates to a land-based circular pond fish and vegetable symbiotic circulating water culture system, wherein all modules of the system are built on land and comprise eight modules, the eight modules are respectively a cylindrical culture pond, a sewage filtering and buffering pond, a disinfection, biochemical and fish and vegetable co-culture pond, a submerged plant factory and a circulating pump, all the modules are directly connected through a pipeline, and key nodes connected with the modules are provided with a plurality of shunt valves for controlling the flow of different branches.
The invention discloses a land-based round pond fish and vegetable symbiotic circulating water culture system. The cylindrical culture module is a main culture area, the volume of the cylindrical culture module accounts for 40-50% of the total volume of the whole culture system, and the biomass of cultured fishes accounts for 70-85% of the total culture biomass of the whole system; the bottom of the cylindrical culture pond is funnel-shaped, a circular water outlet is arranged at the center of the bottom of the funnel, and a proper escape-proof sieve is arranged in the water outlet and is externally connected with a drainage pipeline; a cylindrical plugging block with a conical bottom is arranged right above the water outlet, the cylindrical plugging block is made of a sinking material, a floating ball is arranged right above the plugging block and is connected with the cylindrical plugging block through a soft rope, and the buoyancy generated when the floating ball is completely immersed is at least 120% of the pulling force required for pulling the plugging block from the water outlet; a connecting rod seat is arranged beside the water outlet and is connected with the blocking block through a connecting rod, and the connecting rod is in chain connection with the blocking block and the connecting rod seat; the water inlet of the cylindrical culture pond module is arranged at the upper edge of the pond wall.
According to the land-based circular pond fish and vegetable symbiotic circulating water culture system, large-particle solid excrement discharged from the circular pond is filtered by filtering dirt mainly through physical means such as mesh bags and fences.
According to the land-based circular pond fish and vegetable symbiotic circulating water culture system, the water storage capacity of the buffer pond module is larger than the disposable water discharge capacity of the cylindrical culture module.
According to the land-based round pond fish and vegetable symbiotic recirculating aquaculture system, the disinfection module mainly utilizes the ultraviolet lamp with the wavelength within the range of 100-400nm for sterilization and disinfection.
The invention relates to a land-based round pond fish and vegetable symbiotic circulating water culture system.A biochemical module is mainly used for placing biochemical filtering materials such as biochemical balls and ceramic rings for biochemical filtering.
According to the land-based round pond fish and vegetable symbiotic circulating water culture system, the fish and vegetable co-culture module is a mode for simultaneously carrying out culture and planting. A floating plate of a vegetable planting plate is placed on the water surface of the water, and planting holes are formed in the floating plate and used for planting vegetables; a bracket is arranged below the floating plate, and a fish prevention net is arranged outside the bracket and is mainly used for preventing the root system of the vegetable from being damaged by the cultured fish; the area of the vegetable planting floating plate of the fish and vegetable co-culture module is less than 50 percent of the total area of the module, and the total amount of organisms for culturing fishes accounts for 15 to 30 percent of the total culture biomass of the whole system; the fish and vegetable co-culture module can be used for culturing fishes with smaller specifications of the same kind of fishes in the circular culture pond module, so that the advantages and the disadvantages of the circular culture pond caused by different specifications competition are reduced.
The invention relates to a land-based round pond fish and vegetable symbiotic circulating water culture system, wherein a submerged plant factory module is mainly used for planting submerged plants. The top of the module is a transparent sunlight plate, and a plant growth lamp is arranged below the sunlight plate so as to realize that sunlight and light alternately provide light required by photosynthesis for submerged plants within 24 hours a day; the plant growth lamp adopts an LED lamp with red light wavelength of 630-700nm and an LED lamp with blue light wavelength of 450-470nm, and the ratio is about 3: 1; the two sides of the bottom of the submerged plant factory module are inclined towards the middle, and the middle is provided with a sewage collecting ditch, so that sewage in water can slide down and be collected in the sewage collecting ditch after sinking; building a fishbone culture medium at the bottom of the submerged plant factory module, and planting submerged plants such as hornworts, watermifoil and hydrilla verticillata on the fishbone culture medium; arranging the fishbone culture medium and the sewage collecting ditch into fishbone; the water inlet of the submerged plant factory module is arranged at the upper parts of the two ends.
Compared with the prior art, the invention has the beneficial effects that: the arrangement of the plurality of the shunt valves enables the water circulation mode of the whole system to achieve the effects of changing the serial connection into the parallel connection and changing into a plurality of water circulation modes by adjusting the shunt valves according to different air temperatures, water quality conditions and temporary requirements, and ensures that the water circulation can be continuously maintained even in an unexpected situation.
Drawings
FIG. 1 is a schematic diagram showing the connection relationship between modules of the fish-vegetable symbiotic cultivation system of the present invention;
FIG. 2 is a schematic cross-sectional view of a submerged plant factory module according to the present invention;
FIG. 3 is a schematic top view layout of a submerged plant factory module according to the present invention;
FIG. 4 is a longitudinal sectional view of the module for fish-vegetable co-culture according to the present invention;
FIG. 5 is a schematic longitudinal sectional view of a cylindrical culture pond module of the present invention;
in the drawings, the reference numbers: 1. a cylindrical culture pond; 2. filtering dirt; 3. a buffer pool; 4. sterilizing; 5. biochemical treatment; 6. a fish and vegetable co-culture pond; 7. a submerged plant factory; 8. a circulation pump; 9. a sunlight panel; 10. a plant growing lamp; 11. submerged plants; 12. a fishbone culture medium; 13. a sewage collecting ditch; 14. a water inlet; 15. vegetables; 16. planting a floating plate; 17. a support; 18. a fish net; 19. blocking; 20. a connecting rod; 21. an anti-escape screen; 22. a floating ball; 23. a flexible cord; 24. a connecting rod seat; 25. a water outlet; 26. a flow divider valve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, all modules of the land-based circular pond fish-vegetable symbiotic circulating water culture system are built on land and comprise eight modules which are respectively a cylindrical culture pond 1, a sewage filter 2, a buffer pond 3, a disinfection 4, a biochemistry 5, a fish-vegetable co-culture pond 6, a submerged plant factory 7 and a circulating pump 8, wherein the modules are directly connected through pipelines, and a plurality of shunt valves 26 are arranged at key nodes connected by the modules and used for controlling the flow of different branches; the arrangement of the plurality of the diverter valves 26 ensures that the water circulation mode of the whole system can achieve the effects of changing the series connection into the parallel connection and changing into a plurality of water circulation modes by adjusting the diverter valves 26 according to different air temperatures, water quality conditions and temporary requirements, thereby ensuring that the water circulation can be continuously carried out even in unexpected situations.
According to the land-based round pond fish and vegetable symbiotic circulating water culture system, a cylindrical culture pond 1 module is a main culture area, the volume of the cylindrical culture pond accounts for 40-50% of the total volume of the whole culture system, and the biomass of cultured fishes accounts for 70-85% of the total culture biomass of the whole system; the bottom of the cylindrical culture pond is funnel-shaped, a circular water outlet 25 is arranged at the center of the circle, and a proper escape-proof sieve 21 is arranged in the water outlet 25 and is externally connected with a drainage pipeline; a cylindrical plugging block 19 with a conical bottom is arranged right above the water outlet 25, the cylindrical plugging block 19 is made of a sinking material, a floating ball 22 is arranged right above the plugging block 19 and is connected with the cylindrical plugging block and the floating ball through a soft rope 23, and the buoyancy generated when the floating ball 22 is completely immersed is at least 120% of the pulling force required for pulling the plugging block 19 from the water outlet 25; a connecting rod seat 24 is arranged beside the water outlet 25 and is connected with the block 19 through a connecting rod 20, and the connecting rod 20 is in chain connection with the block 19 and the connecting rod seat 24; the water inlet 14 of the module of the cylindrical culture 1 is arranged at the upper edge part; when the water level in the cultivation cylinder reaches the drainage height, the blocking block 19 is pulled up under the driving of the buoyancy of the floating ball 22, the water in the cultivation pool is discharged outwards through the drainage port 25, and the fish feces at the bottom of the pool are quickly discharged due to the strong tea cup effect; when the water level drops to a certain position, the blocking block 19 is adsorbed by the negative pressure generated by the water outlet 25 to block the water outlet 25, the cultivation cylindrical pool 1 stops draining until the water level continues to rise to the drainage height, and the steps are repeated; the funnel-shaped bottom utilizes the teacup effect and the intermittent water changing, so that the bottom can discharge sewage more thoroughly and the water can be changed more thoroughly.
According to the land-based circular pond fish and vegetable symbiotic circulating water culture system, the sewage filter 2 is mainly used for filtering large-particle solid excrement discharged from a cylindrical culture pond by utilizing physical means such as mesh bags, fences and the like; and (4) finishing the sewage filtering 2 process and purifying the internal environment.
According to the land-based round pond fish and vegetable symbiotic circulating water culture system, the water storage capacity of the buffer pond 3 module is larger than the disposable water discharge capacity of the cylindrical culture pond 1 module; the water draining device is used for buffering drained water and avoiding the phenomenon that the drained water is too much and cannot be contained.
According to the land-based round pond fish and vegetable symbiotic recirculating aquaculture system, the disinfection 4 module mainly utilizes an ultraviolet lamp with the wavelength of 100-400nm for sterilization and disinfection; effectively kill the germs in the 4 systems and are beneficial to the good growth of the germs.
According to the land-based round pond fish and vegetable symbiotic circulating water culture system, biochemical filtering materials such as biochemical balls and ceramic rings are mainly placed in the biochemical module 5 for biochemical filtering; can complete the biochemical 5 filtration, and leads the system to be purer.
According to the land-based round pond fish and vegetable symbiotic circulating water culture system, the fish and vegetable co-culture 6 module is a mode for simultaneous culture and planting, a vegetable planting plate floating plate 16 is placed on the water surface of the fish and vegetable co-culture system, and planting holes are formed in the floating plate and used for planting vegetables 15; a bracket 17 is arranged below the floating plate, and a fish-proof net 18 is arranged outside the bracket 17 and is mainly used for preventing the root system of the vegetables 15 from being damaged by cultured fishes; the area of the vegetable planting floating plate 16 in the module of the fish and vegetable co-culture pond 6 is less than 50 percent of the total area of the module, and the total amount of organisms for culturing fishes accounts for 15 to 30 percent of the total culture biomass of the whole system; the fish and vegetable co-culture 6 module can select the fishes with smaller specifications of the same kind of fishes in the circular culture pond module, so that the victory or the disadvantage of the circular culture pond caused by the competition of different sizes and specifications is reduced; the fish and vegetable co-culture pond 6 module is adopted, so that nitrogen and phosphorus residues in water can be digested by vegetables 15, the space can be fully utilized, the planting income is increased, the culture pressure of the main culture pond is shared, meanwhile, the aim of separately culturing fishes of different specifications is fulfilled, and the competition damage generated when the fishes of different specifications coexist is reduced.
According to the land-based circular pond fish and vegetable symbiotic circulating water culture system, a submerged plant factory 7 module is mainly used for planting submerged plants 11, a transparent sunlight plate 9 is arranged at the top of the module, and plant growth lamps 10 are arranged below the sunlight plate 9, so that sunlight and light alternately provide light required by photosynthesis for the submerged plants 11 within 24 hours a day; the plant growth lamp 10 selects an LED lamp with red light wavelength of 630-700nm and an LED lamp with blue light wavelength of 450-470nm, and the ratio is about 3: 1; the two sides of the bottom of the module of the submerged plant factory 7 are inclined towards the middle, and the middle is provided with a sewage collecting ditch 13, so that sewage in water can slide down and be collected in the sewage collecting ditch 13 after sinking to the bottom; building a fishbone culture medium 12 at the bottom of the module of the submerged plant factory 7, and planting submerged plants such as hornworts, watermifoil and hydrilla verticillata on the fishbone culture medium 12; the fishbone culture medium 12 and the sewage collecting ditch 13 are arranged in a fishbone shape; the module water inlet 14 of the submerged plant factory 7 is arranged at the upper parts of the two ends; the plant factory can perform 24-hour uninterrupted photosynthesis, better purify water quality, increase dissolved oxygen and reduce the occurrence of diseases of cultured objects.
The land-based round pond fish-vegetable symbiotic circulating water culture system has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the mode can be implemented only as long as the beneficial effects are achieved. It should be noted that, for those skilled in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. The utility model provides a land-based round pond fish-vegetable intergrowth recirculating aquaculture system, its characterized in that, all modules of this system all establish on land, including eight big modules, eight big modules are cylinder breed pond (1) respectively, strain dirty (2), buffer pool (3), disinfection (4), biochemistry (5), fish-vegetable co-culture pond (6), submerged plant mill (7) and circulating pump (8), and each module is direct to pass through the pipe connection, and the key node that the module is connected is provided with a plurality of flow divider valve (26) for the flow size of control different branches.
2. The land-based round pond fish and vegetable symbiotic circulating water culture system as claimed in claim 1, wherein the cylindrical culture pond (1) module is a main culture area, the volume of the cylindrical culture pond module accounts for 40% -50% of the total volume of the whole culture system, and the biomass of cultured fishes accounts for 70% -85% of the total biomass of the culture system; the bottom of the cylindrical culture pond is funnel-shaped, a circular water outlet (25) is arranged at the center of the circle of the bottom end of the funnel, and a proper escape-proof sieve (21) is arranged in the water outlet (25) and is externally connected with a drainage pipeline; a cylindrical plugging block (19) with a conical bottom is arranged right above the water outlet (25), the cylindrical plugging block (19) is made of a sinking material, a floating ball (22) is arranged right above the plugging block (19) and is connected with the plugging block (19) through a soft rope (23), and the buoyancy generated when the floating ball (22) is completely immersed is at least 120% of the pulling force required for pulling the plugging block (19) up from the water outlet (25); a connecting rod seat (24) is arranged beside the water outlet (25) and is connected with the blocking block (19) through a connecting rod (20), and the connecting rod (20) is in chain connection with the blocking block (19) and the connecting rod seat (24); the water inlet (14) of the cylindrical culture pond (1) module is arranged on the upper edge of the pond wall.
3. The land-based round pond fish-vegetable symbiotic recirculating aquaculture system of claim 2, characterized in that the filth filter (2) mainly utilizes physical means such as mesh bags and fences to filter large solid excrement discharged from the aquaculture cylindrical pond (1).
4. The land-based round pond fish-vegetable symbiotic recirculating aquaculture system of claim 3, characterized in that the water storage capacity of the buffer pond (3) module is larger than the disposable water discharge capacity of the cylindrical aquaculture pond (1) module.
5. The land-based round pond fish-vegetable symbiotic recirculating aquaculture system of claim 4, wherein the disinfection (4) module mainly utilizes ultraviolet lamps with wavelengths in the range of 100-400nm for sterilization and disinfection.
6. The land-based round pond fish-vegetable symbiotic recirculating aquaculture system of claim 5, wherein the biochemical (5) module is mainly used for placing biochemical filtering materials such as biochemical balls and ceramic rings for biochemical filtering.
7. The land-based round pond fish-vegetable symbiotic circulating water aquaculture system of claim 6, characterized in that the modules of the fish-vegetable symbiotic pond (6) are in a mode of simultaneous aquaculture and planting, a vegetable planting plate floating plate (16) is placed on the water surface, and planting holes are formed in the vegetable planting floating plate (16) and used for planting vegetables (15); a bracket (17) is arranged below the floating plate, and a fish prevention net (18) is arranged outside the bracket (17) and is mainly used for preventing the root system of the vegetable (15) from being damaged by the cultured fish; the area of the vegetable planting floating plate (16) in the module of the fish and vegetable co-culture pond (6) is not more than 50% of the total area of the module, and the total amount of organisms for culturing fishes accounts for 15% -30% of the total culture biomass of the whole system; the small-size fishes of the same kind of fishes in the round culture pond (1) can be selected for culture in the fish and vegetable co-culture pond (6) module, so that the victory or the disadvantage of the round culture pond caused by competition of different sizes and specifications is reduced.
8. The land-based round pond fish-vegetable symbiotic circulating water aquaculture system as claimed in claim 7, characterized in that the submerged plant factory (7) module is mainly used for planting submerged plants (11), the top of the module is provided with a transparent sunlight plate (9), and plant growth lamps (10) are arranged under the sunlight plate (9) so as to realize that sunlight and light alternate to provide light required by photosynthesis for the submerged plants (11) within 24 hours a day; the plant growth lamp (10) selects an LED lamp with red light wavelength of 630-700nm and an LED lamp with blue light wavelength of 450-470nm, and the proportion is about 3: 1; the two sides of the bottom of the module of the submerged plant factory (7) are inclined towards the middle, and the middle is provided with a sewage collecting ditch (13), so that sewage in water can slide down and collect in the sewage collecting ditch (13) after sinking to the bottom; building a fishbone culture medium (12) at the bottom of a module of the submerged plant factory (7), and planting submerged plants such as golden fish algae, watermifoil algae and hydrilla verticillata on the fishbone culture medium (12); the fishbone cultivation medium (12) and the sewage collecting ditch (13) are arranged in a fishbone shape; the module water inlet (14) of the submerged plant factory (7) is arranged at the upper parts of the two ends.
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