CN109258440B - Implementation method of fishing-light integrated pond engineering circulating water culture system - Google Patents

Abstract

The invention belongs to the technical field of aquaculture, and discloses an implementation method of an engineered circulating aquaculture system for a fishery-light integrated pond. During operation, the water is lifted to the oxygenation section, and the middle layer water in the deep water area at the front end is pushed to the aquaculture section; Driven by the water flow, the residual bait and feces move to the sewage suction section; under the action of the rear retaining wall, part of the residual bait and feces settle in the sewage suction section, and the settled residual bait and feces are sucked into the sewage collection tank by the sewage suction pump. After the sewage pond is settled, the supernatant is discharged back to the purification area, and the precipitated solids are used for planting vegetables and fruits; the deep water area, river course and photovoltaic power generation area after the breeding area are used for water purification fishery, and fish are put in the water to further absorb the water in the water. Suspended solids; Chinese herbal medicines are planted in floating beds in the sewage collection tank. The invention not only retains the two advantages of "green energy" of "integration of fishery and light" and three-dimensional reuse of land, but also exerts the advantages of "green fishery" of pond engineering circulating aquaculture.

Description

An implementation method of an engineered recirculating aquaculture system for a fishery-light integrated pond

technical field

The invention belongs to the technical field of aquaculture, and in particular relates to an implementation method of an engineered circulating aquaculture system for a fishery-light integrated pond.

Background technique

At present, the existing technologies commonly used in the industry are as follows:

China is a big aquaculture country, and the main aquaculture model is pond aquaculture. In traditional pond aquaculture, some of the farmers have no awareness of tail water purification, some do not know how to purify the aquaculture tail water, and some do not clean the aquaculture tail water in order to save costs. The water is not purified, no matter what the reason is, the direct discharge of aquaculture tail water has caused a certain degree of pressure on the environment and even led to environmental pollution.

Pond engineering recirculating aquaculture system. Modern civil engineering technology is used to transform the traditional breeding ponds. By separating the breeding unit from the water purification unit, only about 2-5% of the original water surface area is used, and the original or even more than the original total water surface area is cultivated. Production , Completely changed the original pond fish farming model in our country. The remaining 95-98% of the water surface is all used for water purification so that the water quality of the entire ecosystem of the pond is always in an ecological, healthy and efficient operating state. However, this system faces the problem of increased power supply demand, and how to use 95-98% of the water surface also needs to be solved urgently. "Integration of Fishing and Photovoltaics" emerged in the Jiangsu area. It is to build photovoltaic power stations on fish ponds. Fish farming in water bodies and surface power generation are carried out at the same time. It not only makes effective use of land resources, but also solves the dilemma of land use for photovoltaic power generation without affecting the growth of fish farming fish. A new type of fishery facility, so as to achieve the purpose of increasing income, saving energy and reducing emissions. However, there are still many problems to be solved in order to give full play to all the advantages of pond engineering circulating water ecological farming and "integration of fish and light".

In summary, the problems in the prior art are:

Traditional pond aquaculture does not purify the tail water of aquaculture. The direct discharge of aquaculture tail water has caused a certain degree of pressure on the environment and even led to environmental pollution. It is impossible to achieve "green fishery".

The existing "fishing and lighting integration" does not use the pond engineering circulating water ecological breeding technology, fully utilizes the land resources, achieves "green energy", and fails to achieve "green fishery".

The existing pond engineering circulating water ecological breeding technology can effectively treat the tail water of the breeding, achieve up-to-standard discharge, and achieve "green fishery", but it does not make full use of land resources and is not combined with photovoltaic power generation.

The difficulty and significance of solving the above technical problems:

The primary difficulty in solving the above problems is that the pond engineering recirculating aquaculture technology is relatively advanced, and not many people are fully proficient. Therefore, the main difficulty of engineering recirculating aquaculture in ponds integrating fishery and light is how to implement pond engineering recirculation aquaculture in "fishery and light integration" ponds.

Significance: Through the "implementation method of an engineered recirculating aquaculture system for ponds integrating fish and light" provided by the present invention, the "integrated fish and light" pond is transformed, and the "integrated fish and light" pond is improved by using the pond engineering recirculating aquaculture technology. In this way, it not only retains the two advantages of "green energy" and three-dimensional reuse of land, but also takes advantage of the "green fishery" of pond engineering circulating aquaculture. A multi-win model where one plus one is greater than two.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides an implementation method of an engineered circulating aquaculture system for a fishery-light integrated pond. The system of the present invention combines photovoltaic power generation and pond engineering circulating water ecological breeding technology, scientifically plans the entire pond, and simultaneously has all the advantages of pond engineering breeding and photovoltaic power generation.

The present invention is realized in this way. An implementation method of an engineered circulating aquaculture system for fishery and light integrated ponds, including: retaining the "fishery and light integrated" photovoltaic power generation part, re-planning the layout of the pond in the fishery part, and using water retaining The wall divides the "fishing and light integration" pond into two areas, A and B, and the two areas are remodeled according to their functions. When the retrofit is complete, the system operates with clockwise microcirculation of water throughout the pond.

The implementation object is a pond, which is rectangular or similar to rectangular;

The implementation method is characterized in that a water retaining wall is built in the middle of the pond, and the water retaining wall is constructed with a modified PVC board, and the whole pond is divided into two districts, A and B;

The A area includes the deep water area at the front end of the A area, the breeding area of the A area, the water purification area of the A area, and the management room area of the A area;

The water purification area in Area A includes the sewage collection pool in Area A, the deep water area at the rear end of Area A, the river channel at the rear end of Area A, and the photovoltaic power generation area in Area A;

The B area includes the deep water area at the front end of the A area, the breeding area of the A area, the water purification area of the A area, and the management room area of the B area;

The water purification area in area B includes the sewage collection pool in area B, the deep water area at the rear end of area B, the river channel at the rear end of area B, and the photovoltaic power generation area in area B.

The deep water area at the front end of the A area is located directly in front of the breeding area of the A area, and the deep water area at the front end of the B area is located directly in front of the breeding area of the B area, and adopts mechanical excavation, and the depth is deeper than the breeding area;

The sum of the area of the breeding area of the A area and the area of the B area is less than 2% of the pond area, and the area ratio of the area of the A area and the B area is 1:1-2:3.

The breeding area in the A district and the breeding district in the B district contain a plurality of breeding units with a depth of 2.5m. Reinforced concrete, or modified PVC boards, or stainless steel, or glass fiber reinforced plastics can be used to build structures. Each breeding unit is divided into The front-end water lifting and oxygenation section, breeding section, and sewage suction section;

A first block and a second block are set between the front-end water lifting and oxygenation section and the cultivation section, a third block and a fourth block are provided between the cultivation section and the sewage suction section, and the sewage section and the water purification section are connected to each other. Zone features a fifth block.

The front-end water lifting and oxygenation section is provided with a water lifting and oxygenation device, and the water lifting and oxygenation device is an antibacterial nano-oxygenation grid;

The bottom of the cultivation section is flat, and there are antibacterial nano-oxygenation tubes on the bottom cloth on both sides;

The sewage suction section is a whole connected with all the cultivation sections;

The sewage suction section includes a diversion channel, the diversion channel communicates with the sewage collection tanks in area A and area B, the water outlet of the sewage suction pump communicates with the diversion channel, and the water inlet is close to the bottom of the sewage suction section.

The first block, the fourth block, and the fifth block are stainless steel wire mesh with an aperture of 1-2 cm; the second block and the third block are polyethylene knotless soft nets with an aperture of 5 mm;

The photovoltaic power generation area in area A and the photovoltaic power generation area in area B account for 80% to 90% of the entire water surface. The deep water area at the front end is the photovoltaic power generation area of Area B.

In the implementation method described, after the zoning transformation is completed, when carrying out fish farming, the further implementation is as follows:

The water lifting and oxygenation section is driven by Roots blower and antibacterial nanotubes as the medium to push the middle layer water in the deep water area at the front end to the breeding section; the residual bait and feces produced during the breeding process are driven by the water flow to the sewage suction section;

Under the action of the rear retaining wall, part of the residual bait feces is deposited in the sewage suction section, and part of it flows with the water to the purification area behind the breeding area; the settled residual bait feces are sucked into the sewage collection tank by the sewage suction pump, and after the sewage collection tank settles , the supernatant is discharged back to the purification area, and the solids are used for the cultivation of vegetables, fruits and Chinese herbal medicines;

In the deep water area, river course and photovoltaic power generation area behind the breeding area, water purification fishery is carried out, and fish are placed in the water to further absorb suspended matter in the water; floating beds are planted at the overflow position of the supernatant of the sewage collection tank.

After described further implement, the water body of pond has formed " A district front end deep water area-A district culture district-A district clean water district-B front end deep water district-B district culture district-B district clean water district-A district front end "Deep water area" micro-flow water internal circulation.

In the further implementation process, the blocking implementation method is as follows:

Connect the bottom of the first block and the second block with the top of the front retaining wall, and connect the bottom of the front retaining wall with the bottom of the breeding unit to form a whole;

The third block and the fourth block are connected at the junction of the cultivation section and the sewage suction section, and connected with the bottom of the cultivation unit as a whole;

Connect the bottom of the fifth block with the top of the rear retaining wall, and connect the bottom of the rear retaining wall with the bottom of the breeding unit to form a whole;

The fifth block is fixed, and the first to fourth blocks are removable and dismantled. When the fry cannot escape the 5 mm aperture net, the first to fourth blocks are fixed at the corresponding positions before and after the breeding section;

When the fish grows up and cannot escape the block with a diameter of 1 cm, remove the second and third blocks;

When the dissolved oxygen in the water body is lower than 3mg/L, the bottom oxygenation facilities will be opened in an emergency.

In summary, the advantages and positive effects of the present invention are:

In the present invention, by applying the pond engineering circulating aquaculture technology to the "integration of fishery and light", the fishery part of the "integration of fishery and light" is re-planned and laid out, and the partitions are transformed according to the functions. When the system is running, the water is lifted to the aeration section to push the middle layer water in the deep water area at the front end to the breeding section; the residual bait and feces produced during the breeding process are driven by the water flow to the sewage suction section; under the action of the rear retaining wall, part of the remaining The bait feces are deposited in the sewage suction section, and the settled residual bait feces are sucked into the sewage collection tank by the sewage suction pump. After the sewage collection tank settles, the supernatant is discharged back to the purification area, and the precipitated solids are used for vegetable and fruit planting; breeding In the deep water area, river course and photovoltaic power generation area behind the area, water purification fishery is carried out, and fish are put in the water to further absorb suspended matter in the water; Chinese herbal medicines are planted on floating beds in the sewage collection pool. The present invention fully utilizes the advantages of pond engineering circular culture and the advantages of "integration of fishery and light", not only retains the two advantages of "green energy" of "integration of fishery and light" and three-dimensional reuse of land, but also gives full play to the advantages of pond engineering The advantages of the "green fishery" of chemical recirculating aquaculture have realized multiple profits, and it is an organic combination of "green energy + green fishery". It is a multi-win model where one plus one is greater than two.

Description of drawings

Fig. 1 is a schematic diagram of an engineered recirculating aquaculture system for a fishery-light integrated pond provided by an embodiment of the present invention.

Fig. 2 is a plan view of an engineered recirculating aquaculture system for a fishery-light integrated pond provided by an embodiment of the present invention.

In the figure: 0, breeding area; 01, water lifting and oxygenation section; 011, first block; 012, second block; 013, front retaining wall; 02, breeding section; 021, third block; 022, fourth block ;03, sewage suction section; 031, fifth block; 032, rear retaining wall; 1, pond; 2, water flow direction; 3, retaining wall; 4, deep water area at the front end of area A; . Equipment room in Area A; 6. Water purification area in Area A; 61. Sewage collection pool in Area A; 62. Deep water area at the back end of Area A; 63. River channel at the back end of Area A; 64. Photovoltaic power generation area in Area A; 7. B 8. Sink breeding area in Area B; 81. Equipment room in Area B; 9. Water purification area in Area B; 91. Sewage collection pool in Area B; 92. Deep water area at the back end of Area B; River course; 94. Photovoltaic power generation area in area B; 10. Management housing area.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Traditional pond culture does not purify the tail water of aquaculture, and the direct discharge of the tail water of aquaculture has caused a certain degree of pressure on the environment and even led to environmental pollution.

The existing technology does not utilize pond engineering circulating water ecological breeding and "integration of fishery and light", resulting in failure to increase income, save energy and reduce emissions.

The embodiment of the present invention provides a treatment method for an engineered circulating aquaculture system for a fishery-light integrated pond, which includes: during operation, the water lifting and oxygenation system is turned on, and the water retaining wall divides the entire pond into two areas, A and B, and the entire pond clockwise microcirculation of water; specifically:

The water lifting and oxygenation section is driven by Roots blower and antibacterial nanotubes as the medium to push the middle layer water in the deep water area at the front end to the breeding section; the residual bait and feces produced during the breeding process are driven by the water flow to the sewage suction section;

Under the action of the rear retaining wall, part of the residual bait feces is deposited in the sewage suction section, and part of it flows with the water to the purification area behind the breeding area; the settled residual bait feces are sucked into the sewage collection tank by the sewage suction pump, and after the sewage collection tank settles , the supernatant is discharged back to the purification area, and the solids are used for the cultivation of vegetables, fruits and Chinese herbal medicines;

In the deep water area, river course and photovoltaic power generation area behind the breeding area, water purification fishery is carried out, and fish are placed in the water to further absorb suspended matter in the water; floating beds are planted at the overflow position of the supernatant of the sewage collection tank.

When carrying out fish breeding, the fifth block is fixed, and the first to fourth block are removable and dismantled. When the fish fry cannot escape the 5 mm aperture net, the first to fourth block are fixed at the front and back of the breeding section correspondingly. s position;

When the fish grows up and cannot escape the block with a diameter of 1 cm, remove the second and third blocks;

When the dissolved oxygen in the water body is low, the bottom oxygenation facilities are opened in an emergency.

As shown in Figures 1-2, the fishery-light integrated pond engineering circulating aquaculture system provided by the embodiment of the present invention includes: a pond 1, the pond 1 is a rectangle or a quasi-rectangular shape extending from east to west; the water circulation direction of the aquaculture system is 2 is a clockwise direction; the pond 1 is provided with a water retaining wall 3, the water retaining wall 3 is located in the middle of the pond 1, and runs east-west, and the water retaining wall divides the entire pond 1 into two areas, A and B; the A The area includes the deep water area 4 at the front end of Area A, the breeding area 5 in Area A, and the water purification area 6 in Area A; The deep water area 62, the back-end river channel 63 of area A, and the photovoltaic power generation area 64 of area A; the area B includes the deep water area 7 at the front end of area B, the breeding area 8 of area B, and the water purification area 9 of area B; The water purification area 9 of the B area includes the sewage collection pool 91 of the B area, the deep water area 92 at the back end of the B area, the river channel 93 at the back end of the B area, and the photovoltaic power generation area 94 of the B area. The entire area is equipped with 1-2 management room areas 10 .

The pond 1 is a rectangle or a quasi-rectangular shape extending from east to west;

The water circulation direction 2 of the aquaculture system is clockwise;

The sum of the areas of the breeding area 5 in the A area and the breeding area 8 in the B area should be less than 2% of the pond area, and the area ratio of the A and B areas should be controlled before 1:1-2:3, preferably 1:1.

The water retaining wall 3 is located in the middle of the pond 1, runs east-west, and keeps a distance from the north-south pond edge. The upper side is on the same plane as the top of the tank. Usually, a modified PVC board with higher strength is used to divide the whole pond 1 into A, B two districts.

The A area includes the deep water area 4 at the front end of Area A, the breeding area 5 in Area A, and the water purification area 6 in Area A; the area B includes the deep water area 7 at the front end of Area B, the breeding area 8 in Area B, and the water purification area 9 in Area B.

The deep water area 4 and the B area at the front end of the A area include the deep water area 7 at the front end of the B area, located in the front of the A area, the A area, the B area, the A area, and the B area, 8, deep 3 meters, wide and long, etc. , 50-100 meters long.

Breeding area 5 in area A and breeding area 8 in area B are equipped with equipment room 51 in area A and equipment room 81 in area B for the construction of equipment rooms and management rooms. The breeding area 5 in area A and the breeding area in area B contain multiple breeding areas. Unit 0, each breeding unit is divided into the front-end water lifting and oxygenation section 01, the breeding section 02, and the sewage suction section 03. Block 012, a third block 021 and a fourth block 022 are provided between the cultivation section 02 and the sewage suction section 03, and a fifth block 031 is provided between the dirty section 03 and the water purification area 6.

The breeding unit 0 includes one or more of the following conditions:

The first block 011 and the second block 012 are connected with the top of the front retaining wall 013, the retaining wall is 1 meter high and 5 meters long, and the bottom of the front retaining wall 013 is connected with the bottom of the breeding unit 0 as a whole.

The bottom of the fifth blocking net 031 is connected with the top of the rear retaining wall 032, the retaining wall is 1 meter high and 5 meters long, and the bottom of the rear retaining wall 032 is connected with the bottom of the breeding unit 0 as a whole.

The first block 011 , the fourth block 022 , and the fifth block 031 are stainless steel wire mesh with an aperture of 1-2 cm, and the diameter of the steel wire should be greater than 1.2 mm. The second block 012 and the third block 021 are polyethylene knotless soft nets with an aperture of 5 mm.

The front-end water lifting and oxygenation section 01 is provided with a water lifting and oxygenation device, and the water lifting and oxygenation device is an antibacterial nano-oxygenation grid.

The bottom of the culture section 02 is flat, 22 meters long, 5 meters wide, and 2.5 meters deep. There are antibacterial nano-oxygenation tubes on both sides of the long bottom.

The sewage suction section 03 is a whole, connected with all the cultivation sections 02, with a width of 3-20 meters, a length of several cultivation sections 02 superimposed, and a depth of 2.5 meters. The sewage suction section 03 includes a diversion channel, which is the same as the sewage collection pool 61 in area A and the sewage collection pool 91 in area B, and the water outlet of the sewage suction pump is connected to the drainage channel, and the water inlet is close to the sewage suction section 03 bottom.

Water purification area 6 in area A and water purification area in area B include sewage collection pool 61 in area A, sewage collection pool 91 in area B, deep water area 62 at the rear end of area A, deep water area 92 at the rear end of area B, and 63 and 92 rear end rivers in area A area There are 93 rivers at the back end of the area, 64 areas for photovoltaic power generation in area A, and 94 areas for photovoltaic power generation in area B.

The specifications of the sewage collection pool 61 in the A district and the sewage collection pond 91 in the B district are related according to the flow rate of the sewage suction pump, and the usual capacity is 3-5 times of the discharge capacity of the sewage suction pump per hour.

The length and width of the deep water area 62 at the rear end of the A area and the deep water area 92 at the rear end of the B area are equal to the length and width of the suction section 03, and are 3 meters deep.

The lower mouths of the rear channel 63 in the A zone and the rear channel 93 in the B zone are 5-15 meters wide, more than 2.5 meters deep, and extend to another zone.

The photovoltaic power generation area 64 in area A and the photovoltaic power generation area 94 in area B account for about 80-90% of the entire water surface, and the water purification area 6 in area A and the water purification area 9 in area B exclude the deep water area 62 and area B at the rear end of area A. The rear deep water area 92, the rear channel 63 of area A, the rear channel 93 of area B, the deep water area 4 at the front end of area A, and the deep water area 7 at the front end of area B can all be used as the photovoltaic power generation area 64 of area A and the photovoltaic power generation area 94 of area B.

The present invention will be further described below in conjunction with specific analysis.

According to Figure 1, the pond engineered recirculating aquaculture system is built in the pond with photovoltaic cells, which means that the pond that is originally a photovoltaic power generation, according to the characteristics of the pond's engineered recirculating aquaculture, scientifically conducts scientific research on the areas where photovoltaic panels are not installed. planning to make full use of land resources. During operation, when the water lifting and oxygenation system is turned on, the entire pond is divided into two areas, A and B, due to the retaining wall, and the unique layout of the sides and diagonals, the water in the entire pond will be micro-circulated clockwise.

The deep water area at the front end of the breeding area mainly plays the role of temperature control in high temperature seasons, preventing the water temperature from being too high and affecting the growth of fish. To the breeding section, the breeding section is used for fish farming. The residual bait and feces produced during the breeding process are driven by the water flow and move to the sewage suction section. Then it flows to the purification area after the breeding area with the water, and the settled residual bait and feces are sucked into the sewage collection tank by the sewage suction pump. After the sewage collection tank settles, the supernatant is discharged back to the purification area, and the solid matter is collected for vegetables and fruits. and herbal medicine cultivation.

In the deep water area, river course and photovoltaic power generation area behind the breeding area, water purification fishery is carried out, and a certain proportion of silver carp, bighead carp, mandarin fish, snail, river mussel, river crab, and soft-shelled turtle are put in the water. control the number of small miscellaneous fish, create stable and benign ecological waters, and increase economic benefits at the same time. Plant a floating bed of a certain area at the position where the supernatant of the sewage collection tank overflows.

When carrying out fish farming, the fifth block is fixed all the time, and the first to fourth block are all removable and dismantled. When the fish fry (requires uniform size and cannot escape the 5 mm aperture net), the four block are all It needs to be fixed at the corresponding position before and after the breeding section. When the fish grow up and cannot escape the block with a diameter of 1 cm, remove the second and third blocks. Or, larger fish have just been put into the breeding section. Because they are not suitable for the environment and the nature of top water will hit the front block, even if the fish cannot escape the first block, the second and third block should be added, because The second and third blocks are knot-free soft nets, which can effectively prevent fish from being injured. When the dissolved oxygen in the water body is low, the bottom oxygenation facilities are opened in an emergency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (4)

1. An implementation method of an engineered recirculating aquaculture system of a fishery-light integrated pond, characterized in that, the implementation method of the engineered recirculation aquaculture system of a fishery-light integrated pond comprises: Retain the photovoltaic power generation part of "integrated fishery and photovoltaic", re-plan the layout of the pond in the fishery part, divide the pond of "integrated fishery and photovoltaic" into area A and area B with retaining walls, and divide area A and area B according to function Transformation; during operation, the water in the whole pond is microcirculated clockwise; The water retaining wall is located in the middle of the pond, and the water retaining wall is constructed with a modified PVC board; The A area includes the deep water area at the front end of the A area, the breeding area of the A area, the water purification area of the A area, and the management room area of the A area; The water purification area in Area A includes the sewage collection pool in Area A, the deep water area at the rear end of Area A, the river channel at the rear end of Area A, and the photovoltaic power generation area in Area A; The B area includes the deep water area at the front end of the B area, the breeding area of the B area, the water purification area of the B area, and the management room area of the B area; The water purification area in Area B includes the sewage collection pool in Area B, the deep water area at the rear end of Area B, the river channel at the rear end of Area B, and the photovoltaic power generation area in Area B; The sum of the area of the cultivation area in the A district and the B district cultivation district is less than 2% of the pond area, and the area ratio of the A district and the B district is 1:1-2:3; The breeding area in the A district and the breeding district in the B district contain a plurality of breeding units, the depth is 2.5m, adopt reinforced concrete, or modified PVC board, or stainless steel, or glass fiber reinforced plastics to build the structure, each breeding unit is divided into front-end lift Water oxygenation section, breeding section, sewage suction section; A first block and a second block are set between the front-end water lifting and oxygenation section and the cultivation section, a third block and a fourth block are provided between the cultivation section and the sewage suction section, and the sewage section and the water purification section are connected to each other. There is a fifth block in the zone; The pond is rectangular or quasi-rectangular; The deep water area at the front end of the A area is located directly in front of the breeding area of the A area, and the deep water area at the front end of the B area is located directly in front of the breeding area of the B area, adopts mechanical excavation, and the depth is deeper than the breeding area; The front-end water lifting and oxygenation section is provided with a water lifting and oxygenation device, and the water lifting and oxygenation device is an antibacterial nano-oxygenation grid; The bottom of the cultivation section is flat, and there are antibacterial nano-oxygenation tubes on the bottom cloth on both sides; The sewage suction section is a whole connected with all the cultivation sections; The sewage suction section includes a diversion channel, the diversion channel is connected to the sewage collection pool in area A and the sewage collection pool in area B, the water outlet of the sewage suction pump is connected to the diversion channel, and the water inlet is close to the bottom of the sewage suction section; The first block, the fourth block, and the fifth block are stainless steel wire mesh with an aperture of 1-2 cm; the second block and the third block are polyethylene knotless soft nets with an aperture of 5 mm; The photovoltaic power generation area in area A and the photovoltaic power generation area in area B account for 80-90% of the entire water surface. The deep water area at the front end is the photovoltaic power generation area of Area B. 2. The implementation method of the engineered circulating aquaculture system of fishery and light integrated pond as claimed in claim 1, characterized in that, the engineered circulating aquaculture system of fishery and light integrated pond, with regard to the implementation method described in claim 1, After the zoning transformation is completed, when carrying out fish farming, the further implementation is as follows: The water lifting and oxygenation section is driven by Roots blower and antibacterial nanotubes as the medium to push the middle layer water in the deep water area at the front end to the breeding section; the residual bait and feces produced during the breeding process are driven by the water flow to the sewage suction section; Under the action of the rear retaining wall, part of the residual bait feces is deposited in the sewage suction section, and part of it flows with the water to the purification area behind the breeding area; the settled residual bait feces are sucked into the sewage collection tank by the sewage suction pump, and after the sewage collection tank settles , the supernatant is discharged back to the purification area, and the solids are used for the cultivation of vegetables, fruits and Chinese herbal medicines; In the deep water area, river course and photovoltaic power generation area behind the breeding area, water purification fishery is carried out, and fish are placed in the water to further absorb suspended matter in the water; floating beds are planted at the overflow position of the supernatant of the sewage collection tank. 3. The implementation method of the fishery-light integrated pond engineered recirculating aquaculture system according to claim 2, wherein the water body of the pond forms a "deep water area at the front end of Area A-aquaculture area of Area A-water purification area of Area A- The deep water area at the front end of Area B - the breeding area of Area B - the water purification area of Area B - the deep water area at the front end of Area A" micro-flow water internal circulation. 4. The implementation method of the fishery-light integrated pond engineered recirculating aquaculture system as claimed in claim 2, characterized in that, when carrying out fish farming, the implementation method of blocking is as follows: Connect the bottom of the first block and the second block with the top of the front retaining wall, and connect the bottom of the front retaining wall with the bottom of the breeding unit to form a whole; The third block and the fourth block are connected at the junction of the cultivation section and the sewage suction section, and connected with the bottom of the cultivation unit as a whole; Connect the bottom of the fifth block with the top of the rear retaining wall, and connect the bottom of the rear retaining wall with the bottom of the breeding unit to form a whole; The fifth block is fixed, and the first to fourth blocks are removable and dismantled. When the fry cannot escape the 5 mm aperture net, the first to fourth blocks are fixed at the corresponding positions before and after the breeding section; When the fish grow up and cannot escape the block with a diameter of 1 cm, remove the second and third blocks; When the dissolved oxygen in the water body is lower than 3mg/L, the bottom oxygenation facilities will be opened in an emergency.