CN116098091A - Circular ecological breeding method for circular breeding pond - Google Patents
Circular ecological breeding method for circular breeding pond Download PDFInfo
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- CN116098091A CN116098091A CN202310110276.4A CN202310110276A CN116098091A CN 116098091 A CN116098091 A CN 116098091A CN 202310110276 A CN202310110276 A CN 202310110276A CN 116098091 A CN116098091 A CN 116098091A
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- 238000009395 breeding Methods 0.000 title claims abstract description 45
- 230000001488 breeding effect Effects 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 199
- 239000007787 solid Substances 0.000 claims abstract description 46
- 239000010865 sewage Substances 0.000 claims abstract description 33
- 239000008213 purified water Substances 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- 239000001301 oxygen Substances 0.000 claims description 26
- 238000006213 oxygenation reaction Methods 0.000 claims description 22
- 238000004062 sedimentation Methods 0.000 claims description 13
- 238000005276 aerator Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000012136 culture method Methods 0.000 claims 1
- 241000251468 Actinopterygii Species 0.000 abstract description 34
- 241000238557 Decapoda Species 0.000 abstract description 14
- 210000003608 fece Anatomy 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 9
- 241000143060 Americamysis bahia Species 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 230000001706 oxygenating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000007918 pathogenicity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
- A01K63/006—Accessories for aquaria or terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/10—Cleaning bottoms or walls of ponds or receptacles
-
- 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
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a circular ecological breeding method of a circular breeding pond, which comprises the following steps: step S1, enabling pool water in the culture pool to form a vortex which flows downwards spirally around the axis of the culture pool; the pond water at the center of the culture pond flows from bottom to top, and forms a circulation flow from the center of the pond water at the upper layer of the culture pond to the edge of the culture pond, to the bottom of the culture pond, to the center of the pond water at the lower layer of the culture pond and to the center of the pond water at the upper layer of the culture pond; s2, discharging solid dirt in the pond water of the culture pond along with water flow from a main sewage outlet in the center of the bottom of the culture pond; and S3, treating the sewage discharged from the bottom of the culture pond outside the culture pond, separating solid dirt in the sewage from the water body, and then introducing the purified water body into the culture pond. Can improve the discharge effect of solid dirt such as fish and shrimp feces and feed residues in the culture pond on the premise of ensuring the stable pond water of the culture pond and reducing the influence of vortex on fishes.
Description
Technical Field
The invention belongs to the technical field of aquaculture, and particularly relates to a circular ecological aquaculture method of a circular aquaculture pond.
Background
The aquatic products such as fishes, shrimps and the like are cultivated in the cultivation pool, and solid dirt such as fish and shrimp feces, feed residues and the like are easy to accumulate at the bottom of the cultivation pool. In order to avoid the problems of eutrophication of pond water, pathogenicity of fishes and shrimps and the like, solid dirt in the culture pond needs to be cleaned regularly. The traditional method is that a part of the water in the culture pond is firstly discharged, and then the solid dirt at the bottom of the culture pond is pumped out along with the water in the pond by a water pump arranged on the bank. In order to avoid the stimulation of the newly introduced pond water to the fish and the shrimp, the old pond water in the breeding pond cannot be completely pumped and discharged, and part of the old pond water needs to be remained in the breeding pond, so that the fish and the shrimp are slowly adapted and transited. When the water pump is used for pumping and discharging, fish and shrimp are stimulated to move in the pond water quickly, the pond water is disturbed, and solid dirt at the bottom of the culture pond is suspended in the pond water. Therefore, the method for pumping and exhausting has the problems of incomplete pumping and exhausting, complex operation and the like.
In order to solve the technical problems, patent document with application number 202110459131.6 discloses a funnel-shaped pond ecological cycle culture system and method, which accelerate the aggregation speed of feces and residual baits on the conical side surface of a fish pond towards the central drain outlet at the bottom through a vortex booster device, and the feces and residual baits generated by fish continuously slide down to the center of the bottom of the funnel-shaped fish pond along the side wall of the fish pond and are discharged from a drain pipe at the center of the bottom of the fish pond. By forming vortex in the water in the fish pond, the purpose is to increase the gathering speed of fish manure and residual bait to the central drain outlet at the bottom. When the rotation angular velocity of the fish pond water flow is large, adverse effects are easily caused on the growth of fish. In order to minimize the adverse effect of vortex on fish, the rotation angular velocity of the water flow in the fish pond should be small, the aggregation velocity of the feces and residual baits to the center of the bottom of the fish pond is slow, and the aggregation effect is limited. When solid dirt is discharged, more pool water is required to be discharged, and the occupied solid dirt is smaller in the sewage of unit volume. Therefore, in the practical application process, the technical scheme disclosed in the patent has the defects of poor pollution discharge effect, long pollution discharge time consumption and the like.
Disclosure of Invention
The invention aims to solve the technical problem of providing a circular ecological breeding method for a breeding pond, which can improve the discharge effect of solid dirt such as fish and shrimp feces, feed residues and the like in the breeding pond on the premise of ensuring stable pond water of the breeding pond and reducing the influence of vortex on fishes.
The technical scheme adopted for solving the technical problems is as follows: the circular ecological breeding method of the circular breeding pond comprises the following steps:
step S1, enabling pool water in the culture pool to form a vortex which flows downwards spirally around the axis of the culture pool;
the pond water at the center of the culture pond flows from bottom to top, and forms a circulation flow from the center of the pond water at the upper layer of the culture pond to the edge of the culture pond, to the bottom of the culture pond, to the center of the pond water at the lower layer of the culture pond and to the center of the pond water at the upper layer of the culture pond;
s2, discharging solid dirt in the pond water of the culture pond along with water flow from a main sewage outlet in the center of the bottom of the culture pond;
and S3, treating the sewage discharged from the bottom of the culture pond outside the culture pond, separating solid dirt in the sewage from the water body, and then introducing the purified water body into the culture pond.
Further, in the step S1, the water in the culture pond forms a vortex which flows downwards spirally around the axis of the culture pond by the water pushing aerator.
Further, in the step S1, the pond water at the center of the culture pond flows from bottom to top through the water lifting and oxygenation pump.
Further, in the step S3, the sewage discharged from the bottom of the culture pond is separated from the solid dirt and the water body by a sedimentation pond, the separated water body is purified by a biological treatment pond, the purified water body is introduced into a reservoir for accumulation, and the water body in the reservoir is introduced into the culture pond;
the water surface height of the culture pond is h1, the water surface height of the sedimentation pond is h2, the water surface height of the biological treatment pond is h3, and the water surface height of the reservoir is h4, wherein h1 is more than h2 and more than h3 is more than h4.
Further, in step S2, the solid dirt in the pond water of the culture pond is discharged along with the water flow from the auxiliary drain outlet at the bottom of the culture pond, a space is reserved between the auxiliary drain outlet and the main drain outlet, and the auxiliary drain outlets are uniformly arranged at intervals along the circumferential direction of the culture pond.
Further, in the step S3, the purified water body is oxygenated by an oxygen-enriched water oxygenating machine to form oxygen-enriched water, and then the oxygen-enriched water is introduced into the culture pond along the tangential direction L of the cross section of the culture pond and along the flowing direction of the pond water.
Further, the method also comprises a step S4 of oxygenation to the culture pond through the micropore oxygenation device.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a circular ecological breeding method of a circular breeding pond, which can improve the discharge effect of solid dirt such as fish and shrimp feces, feed residues and the like in the breeding pond on the premise of ensuring the stable pond water of the breeding pond and reducing the influence of vortex on fishes. The solid dirt is discharged and less pool water is discharged, and the solid dirt occupies a larger area in the sewage of unit volume. Has the advantages of good discharge effect of solid dirt such as fish and shrimp feces, feed residues and the like, high pollution discharge speed, small influence on fish and shrimp in a culture pond, energy conservation, environmental protection, sustainability and the like.
Drawings
FIG. 1 is a schematic top view of a culture pond according to the invention;
FIG. 2 is a schematic illustration of pond water flow in a vertical cut view of a lagoon and solid waste removal employing the present invention;
FIG. 3 is a schematic top view of increasing the oxygen content of pond water in a culture pond by a microporous oxygenation device;
FIG. 4 is a schematic top view of the passage of oxygen-enriched water into a culture pond;
FIG. 5 is a schematic view showing the construction of a culture pond, a sedimentation pond, a biological treatment pond and a water reservoir according to the present invention;
reference numerals: 1-a culture pond; 101-a main sewage outlet; 102-auxiliary sewage outlet; 2-a water lift oxygenation pump; 3-a water pushing aerator; 4-a micropore oxygenation plate; 5-an oxygenerator; 6-water diversion pipe; 7-a sedimentation tank; 8-a biological treatment tank; 9-a reservoir; 10-a sewage pipeline; 11-a first pipe; 12-a second conduit; 13-a water suction pump; 14-an oxygen-enriched water oxygenator; 15-a purified water outlet pipe; 16-an oxygen-enriched water outlet pipe.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The circular ecological breeding method of the circular breeding pond comprises the following steps:
step S1, enabling pool water in the culture pool 1 to form a vortex which flows downwards spirally around the axis of the culture pool 1;
the pond water at the center of the culture pond 1 flows from bottom to top, and forms a circulation flow from the center of the pond water at the upper layer of the culture pond 1 to the edge of the culture pond 1, to the bottom of the culture pond 1, to the center of the pond water at the lower layer of the culture pond 1 and to the center of the pond water at the upper layer of the culture pond 1;
s2, discharging solid dirt in the pond water of the culture pond 1 along with water flow from a main sewage outlet 101 at the center of the bottom of the culture pond 1;
and S3, purifying the sewage discharged from the bottom of the culture pond 1 outside the culture pond 1, separating solid dirt from pond water, and introducing the purified pond water into the culture pond 1.
It is known that the cross section of the culture pond 1 is circular in structure so as to form a vortex. The water pushing aerator 3 floating on the water surface is arranged in the culture pond 1, and the water pushing aerator 3 is arranged in a structure in the prior art, such as a floating bridge or a bridge erected across the culture pond 1. The water pushing aerator 3 is arranged close to the edge of the culture pond 1. The water in the culture pond 1 forms a vortex which flows downwards spirally around the axis of the culture pond 1 by the water pushing aerator 3. The plurality of water pushing oxygen-increasing machines 3 are uniformly arranged at intervals along the circumferential direction of the culture pond 1. By arranging a plurality of water pushing oxygen-increasing machines 3, the pool water in the culture pool 1 is easier to form vortex. The water lifting and oxygenation pump 2 is installed on the water surface at the center of the culture pond 1 through a floating bridge or a bridge erected across the culture pond 1, and the installation mode of the water lifting and oxygenation pump 2 is the prior art. The water in the center of the culture pond 1 flows from bottom to top through the water lifting and oxygenation pump 2, and forms a circulation flow from the center of the water in the upper layer of the culture pond 1 to the edge of the culture pond 1, to the bottom of the culture pond 1, to the center of the water in the lower layer of the culture pond 1 and to the center of the water in the upper layer of the culture pond 1 as shown in fig. 2.
The solid dirt in the water in the culture pond 1 moves along with the water flow, the vortex causes the solid dirt in the culture pond 1 to move downwards along with the water flow in a spiral way around the axis of the culture pond 1, and the solid dirt gathers along with the water flow to the bottom center of the culture pond 1. The pond water flow velocity near the edge of the culture pond 1 is more than 1 m/s. Because the pool water forms vortex, the flow velocity of the pool water gradually decreases from outside to inside, the flow velocity of the outer ring is maximum, and the flow velocity of the inner ring near the center of the vortex is minimum. The water in the central part of the culture pond 1 flows from bottom to top through the water lifting and oxygenation pump 2, so that the formed circulation can prevent solid dirt from adhering to the bottom wall of the culture pond 1, and the solid dirt is collected towards the central part of the bottom of the culture pond 1. Under the action of gravity and pressure difference, a large amount of solid dirt falls down to the center of the bottom of the culture pond 1 and is discharged from the main drain 101 along with water flow. According to actual detection, the solid dirt falling speed of the large volume is about 1 m/s, and the solid dirt falling speed of the fine particles is less than 0.05 m/s. And (3) treating the sewage discharged from the bottom of the culture pond 1 outside the culture pond 1 to separate solid dirt in the sewage from the water, and then introducing the purified water into the culture pond 1 to realize circulating culture. The separated solid dirt can be used as fertilizer after fermentation treatment, and is green, environment-friendly and sustainable.
By the method, the discharge effect of solid dirt such as fish and shrimp feces and feed residues in the culture pond 1 can be improved on the premise of ensuring the stable pond water of the culture pond 1 and reducing the influence of vortex on fishes.
In the step S3, the sewage discharged from the bottom of the culture pond 1 is separated from the solid dirt and the water body by the sedimentation pond 7, the separated water body is purified by the biological treatment pond 8, the purified water body is fed into the water reservoir 9 for accumulation, and the water body in the water reservoir 9 is fed into the culture pond 1; the water surface height of the culture pond 1 is h1, the water surface height of the sedimentation pond 7 is h2, the water surface height of the biological treatment pond 8 is h3, the water surface height of the reservoir 9 is h4, and h1 is more than h2 and more than h3 is more than h4. The sewage discharged from the bottom of the culture pond 1 is introduced into the sedimentation pond 7 through a sewage discharge pipeline 10, and the solid dirt is deposited at the bottom of the sedimentation pond 7, so that the separation of the solid dirt and the water body is realized. And then the separated water body is introduced into the biological treatment tank 8 through the first pipeline 11, a large amount of beneficial microorganisms are put into the biological treatment tank 8, and harmful substances such as heavy metal ions and eutrophication substances in the water body can be absorbed, so that the purpose of purifying the water body is achieved. The purified water body is introduced into the water reservoir 9 for accumulation through the second pipeline 12, and then the water body in the water reservoir 9 is introduced into the culture pond 1 through the water suction pump 13, so that the circulating culture is realized. The water level h1 of the culture pond 1 is greater than the water level h2 of the sedimentation pond 7, the water level h3 of the biological treatment pond 8 is greater than the water level h4 of the reservoir 9, and natural flow of water in the culture pond 1, the sedimentation pond 7, the biological treatment pond 8 and the reservoir 9 is realized through water level differences. In general, the water level in the tank 1 is 1.5-2 meters higher than the water level in the reservoir 9. Through experimental observation, solid dirt such as fish and shrimp feces and feed residues mainly fall into a circular area with the center of the bottom of the culture pond 1 as the center and the radius of 5 meters, so as to further improve the pollution discharge effect. Preferably, in the step S2, the solid dirt in the water in the pond 1 is discharged from the auxiliary drain outlet 102 at the bottom of the pond 1 to the sedimentation pond 7 along with the water flow, and a space is reserved between the auxiliary drain outlet 102 and the main drain outlet 101, and the plurality of auxiliary drain outlets 102 are uniformly spaced along the circumferential direction of the pond 1. The distance between the auxiliary sewage outlet 102 and the main sewage outlet 101 is 3-5 meters. The auxiliary drain outlet 102 arranged at the bottom of the culture pond 1 is beneficial to discharging the solid dirt close to the edge of the circular area. The main sewage outlet 101 and the auxiliary sewage outlet 102 are matched, so that the solid sewage can be discharged better.
The main drain 101 and the auxiliary drain 102 are provided with blocking nets to prevent fishes and shrimps from escaping from the main drain 101 and the auxiliary drain 102.
To increase the oxygen content of the pond water in the culture pond 1, the following two specific examples are included, but not limited to:
in the first embodiment, in the step S3, the purified water body is oxygenated by the oxygen-enriched water oxygenator 14 to form oxygen-enriched water, and then the oxygen-enriched water is introduced into the culture pond 1 along the tangential direction L of the cross section of the culture pond 1 and along the flow direction of the pond water. The water inlet of the water pump 13 is connected with a water guide pipe 6 extending into the reservoir 9, the water outlet of the water pump 13 is communicated with the water inlet of the oxygen-enriched water oxygenator 14 through a purified water outlet pipe 15, and the water outlet of the oxygen-enriched water oxygenator 14 is connected with an oxygen-enriched water outlet pipe 16. Specifically, purified water in the reservoir 9 is pumped into the oxygen-enriched water oxygenator 14 by the water pump 13, oxygen-enriched water is obtained after the oxygen-enriched water oxygenator 14 is used for oxygenating the purified water, and then the oxygen-enriched water is introduced into the culture pond 1 along the tangential direction L of the cross section of the culture pond 1 and along the flow direction of the pond water at the flow rate of 150-200 square/hour. The working principle of the oxygen-enriched water oxygenator 14 is the prior art, and the oxygen-enriched water oxygenator 14 is the prior equipment.
In the second embodiment, the method further comprises a step S4 of oxygenation to the culture pond 1 through the micropore oxygenation device. Specifically, the micropore oxygenation device comprises a micropore oxygenation disc 4 and an oxygenerator 5; the microporous oxygenation disk 4 is arranged below the water surface of the pond water of the culture pond 1 and is arranged close to the side wall of the culture pond 1; the oxygenerator 5 is arranged outside the culture pond 1. The oxygen outlet of the oxygenerator 5 is communicated with the connecting port of the microporous oxygenation disk 4 through a pipeline. Oxygen generated by the oxygenerator 5 is conveyed to the microporous oxygenation disk 4 through a pipeline, and then the oxygen is introduced into pond water of the culture pond 1. And (5) adopting a microporous oxygenation device to feed the purified water into the pond Shui Zengyang in the culture pond 1 through the purified water outlet pipe 15 at a flow rate of 30-50 square/hour. The microporous oxygenation device is in the prior art.
The implementation process shows that the circular ecological breeding method for the breeding pond can improve the discharge effect of solid dirt such as fish and shrimp feces and feed residues in the breeding pond on the premise of ensuring stable pond water and reducing the influence of vortex on fish. And the solid dirt is discharged, meanwhile, less pool water is discharged, and the solid dirt occupies a larger area in the sewage of unit volume. Has the advantages of good discharge effect of solid dirt such as fish and shrimp feces, feed residues and the like, high pollution discharge speed, small influence on fish and shrimp in a culture pond, energy conservation, environmental protection, sustainability and the like.
Claims (7)
1. The circular ecological breeding method of the circular breeding pond is characterized by comprising the following steps:
s1, enabling pool water in the culture pool (1) to form a vortex which flows downwards spirally around the axis of the culture pool (1);
the pond water at the center of the culture pond (1) flows from bottom to top, and forms a circulation flow from the center of the pond water at the upper layer of the culture pond (1) to the edge of the culture pond (1), to the bottom of the culture pond (1), to the center of the pond water at the lower layer of the culture pond (1) and to the center of the pond water at the upper layer of the culture pond (1);
s2, discharging solid dirt in the pond water of the culture pond (1) along with water flow from a main sewage outlet (101) at the center of the bottom of the culture pond (1);
and S3, treating the sewage discharged from the bottom of the culture pond (1) outside the culture pond (1), separating solid dirt in the sewage from the water body, and then introducing the purified water body into the culture pond (1).
2. The circular ecological breeding method of the circular breeding pond according to claim 1, wherein in the step S1, the pond water in the breeding pond (1) forms a vortex which flows downwards spirally around the self axis of the breeding pond (1) through the water pushing aerator (3).
3. The circular ecological breeding method of the circular breeding pond according to claim 1, wherein in the step S1, pond water at the center of the breeding pond (1) flows from bottom to top through a water lifting and oxygenation pump (2).
4. The circular ecological breeding method of the circular breeding pond according to claim 1, wherein in the step S3, the sewage discharged from the bottom of the breeding pond (1) is separated from the solid dirt and the water body through a sedimentation pond (7), the separated water body is purified through a biological treatment pond (8), the purified water body is filled into a water storage pond (9) for accumulation, and the water body in the water storage pond (9) is filled into the breeding pond (1);
the water surface height of the culture pond (1) is h1, the water surface height of the sedimentation pond (7) is h2, the water surface height of the biological treatment pond (8) is h3, the water surface height of the reservoir (9) is h4, and h1 is more than h2 and more than h3 is more than h4.
5. The circular ecological breeding method of the circular breeding pond according to claim 1, wherein in the step S2, solid dirt in pond water of the breeding pond (1) is discharged from an auxiliary sewage outlet (102) at the bottom of the breeding pond (1) along with water flow, a space is reserved between the auxiliary sewage outlet (102) and the main sewage outlet (101), and a plurality of auxiliary sewage outlets (102) are uniformly arranged at intervals along the circumferential direction of the breeding pond (1).
6. The circular ecological breeding method of the circular breeding pond according to any one of claims 1 to 5, wherein in the step S3, the purified water body is oxygenated by an oxygen-enriched water oxygenator (14) to form oxygen-enriched water, and the oxygen-enriched water is introduced into the breeding pond (1) along the tangential direction L of the cross section of the breeding pond (1) and along the flowing direction of the pond water.
7. The circular culture pond circulation ecological culture method according to any one of claims 1 to 5, further comprising the step of S4, oxygenation is performed into the culture pond (1) through a microporous oxygenation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310110276.4A CN116098091A (en) | 2023-02-09 | 2023-02-09 | Circular ecological breeding method for circular breeding pond |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310110276.4A CN116098091A (en) | 2023-02-09 | 2023-02-09 | Circular ecological breeding method for circular breeding pond |
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| CN202310110276.4A Pending CN116098091A (en) | 2023-02-09 | 2023-02-09 | Circular ecological breeding method for circular breeding pond |
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