A facility and method for treating factory aquaculture tail water using sea cucumbers and abalone

Abstract

The present invention belongs to the technical field of factory breeding tailwater treatment, specifically a facility and method for treating factory breeding tailwater using sea cucumbers and abalone, the factory breeding tailwater enters the longitudinal step-type breeding pond through a screen, the gate is opened and closed according to the amount of breeding tailwater generated, the breeding tailwater is diverted into the transverse step-type breeding pond, the longitudinal and transverse step-type breeding ponds are arranged in a step-type manner, and the breeding tailwater can be ensured to pass through each breeding pond one by one under the action of gravity, and the tile attachment base is evenly arranged in each breeding pond. After the sea cucumbers and abalone are put in, the tailwater volume in the breeding pond is controlled by adjusting the angle and height of the water outlet pipe, the breeding pond is inflated by an air pump, and the light is blocked by a sunshade to ensure the light and temperature in the breeding pond. The present invention uses the tailwater discharged from factory breeding every day as the breeding water for sea cucumbers and abalone, and according to the amount of breeding tailwater discharged, the number of breeding ponds used is reasonably arranged to achieve tailwater treatment while increasing economic benefits.

Description

Technical Field

[0001] The invention belongs to the technical field of factory aquaculture tail water treatment, and specifically relates to a facility and method for treating factory aquaculture tail water by using sea cucumbers and abalone. Background Art

[0002] The main pollutants in marine aquaculture tailwater include organic matter, phosphorus, ammonia nitrogen, nitrite, etc. Traditional aquaculture tailwater treatment methods include physical, chemical and biological methods. The most widely used biological method is microbial treatment; however, unlike inland aquaculture, marine aquaculture tailwater has high salinity and low carbon-nitrogen ratio, which is not suitable for the growth of microorganisms used in traditional wastewater treatment. Therefore, microbial treatment is not effective in the treatment of marine aquaculture tailwater. The latest circulating water marine aquaculture technology can purify aquaculture tailwater and recycle it, which can not only reduce pollution to coastal water bodies, but also help increase production and accelerate the growth rate of aquaculture organisms; however, the workshop transformation cost is high and maintenance is difficult. Choosing a suitable aquaculture tailwater treatment method to fully utilize aquaculture tailwater is an inevitable trend for future development.

[0003] Sea cucumbers and abalone are important marine aquaculture species in my country, with high nutritional and economic value. Studies have shown that sea cucumber and abalone farming can reduce nitrogen, total organic carbon, particulate organic matter, transparent exopolymer particles (TEP) in aquaculture ponds, and can also consume organic matter in sediments, fish feces, excess fish food, algae, etc. Placing sea cucumbers and abalone in a seawater environment with a high nutrient load can utilize waste particulate matter from organisms at different trophic levels. Sea cucumbers and abalone can extract particulate waste from aquaculture tail water and convert it into valuable biomass in the process, reducing the potential impact of aquaculture activities on the environment and improving energy efficiency. It can be used as an effective means of treating factory aquaculture tail water. Summary of the invention

[0004] In order to treat the tail water of factory aquaculture and utilize the residual bait, feces and other wastes in the aquaculture tail water, the purpose of the present invention is to provide a facility and method for treating the tail water of factory aquaculture using sea cucumbers and abalone, using stepped aquaculture ponds and other supporting facilities, and using the tail water discharged from factory aquaculture every day as the aquaculture water for sea cucumbers and abalone. According to the discharge amount of aquaculture tail water, the number of aquaculture ponds used is reasonably arranged, which has the advantages of reducing the input of bait, reducing tail water pollution, and improving economic benefits.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] The facility of the present invention comprises a water flow control device and a breeding device, wherein the water flow control device comprises a screen, a gate and a drain pipe, the breeding device comprises a longitudinal step-type breeding pool, a transverse step-type breeding pool and a tile attachment base, the length direction of the longitudinal step-type breeding pool is the flow direction of breeding tail water, the water inlet end of the longitudinal step-type breeding pool in the length direction is provided with a screen, and the water outlet end is installed with a drain pipe, a transverse step-type breeding pool is provided on one side of the length direction of the longitudinal step-type breeding pool, a gate is provided between the water inlet end of the transverse step-type breeding pool and the longitudinal step-type breeding pool, a drain pipe is installed at a position of the transverse step-type breeding pool away from the gate, the length direction of the transverse step-type breeding pool is perpendicular to the length direction of the longitudinal step-type breeding pool, and the flow direction of the breeding tail water entering the transverse step-type breeding pool through the gate is "S"-shaped; the bottoms of the longitudinal step-type breeding pool and the transverse step-type breeding pool are both installed with tile attachment bases.

[0007] Wherein: the longitudinal stepped culture pond is divided into a plurality of culture ponds arranged in a stepped manner along the length direction, and the culture tail water entering through the screen flows through each culture pond in sequence by gravity.

[0008] The bottom of each of the longitudinal stepped culture ponds is lower in the middle along the length direction than the two sides, and a drainage outlet is provided at the bottom of the culture pond at the lowest point, and a height-adjustable drainage pipe is installed at the drainage outlet.

[0009] A water pipe is installed at the bottom of the pool wall between two adjacent breeding pools of the longitudinal stepped breeding pool. The water pipe is "L"-shaped. The "L"-shaped vertical pipe is the water inlet side and the angle with the bottom of the breeding pool can be adjusted. The "L"-shaped horizontal pipe is the water outlet side and is connected to the next adjacent breeding pool.

[0010] The transverse stepped culture pond is divided into a plurality of culture ponds arranged in a stepped manner along the width direction, and the culture tail water entering through the gate flows through each culture pond in sequence by gravity.

[0011] The bottom of each of the transverse stepped breeding ponds is lower in the middle along the length direction than the two sides. A drainage outlet is provided at the bottom of each breeding pond away from one end of the longitudinal stepped breeding pond, and each drainage outlet is equipped with a height-adjustable drainage pipe.

[0012] A water guide pipe is installed on the pool wall between two adjacent breeding pools of the transverse stepped breeding pool, and the water guide pipes on the two adjacent pool walls are respectively located at the two ends of the width direction of the transverse stepped breeding pool, so as to realize the "S"-shaped flow of breeding tail water in the transverse stepped breeding pool; the water guide pipe is "L"-shaped, the "L"-shaped vertical pipe is the water inlet side, and the angle with the bottom of the breeding pool can be adjusted, and the "L"-shaped horizontal pipe is the water outlet side, which is connected to the next adjacent breeding pool.

[0013] The invention also includes an oxygenation device, which includes an air pump, an air pipe A, an air valve and an air pipe B. The transverse stepped culture pond is divided into a plurality of stepped culture ponds along the width direction. An air pipe B is laid in each culture pond of the transverse stepped culture pond along the length direction. Each of the air pipes B is connected to the air pipe A and an air valve is provided at the connection. The air pump is connected to the air pipe A.

[0014] A sunshade for shading, rainproofing and windproofing is installed on the pool wall of the transverse stepped breeding pool or on the pool walls of the longitudinal stepped breeding pool and the transverse stepped breeding pool.

[0015] The method of treating factory aquaculture tail water by using sea cucumber and abalone in the present invention is as follows:

[0016] The tail water discharged daily from factory farming is used as the farming water for sea cucumbers and abalones. According to the amount of the farming tail water discharged, the number of the longitudinal stepped farming pools and the transverse stepped farming pools is reasonably arranged. The factory farming tail water enters the longitudinal stepped farming pools through the screen. The gate is opened and closed according to the amount of the farming tail water generated, and the farming tail water is diverted into the transverse stepped farming pools. Tile attachment bases are evenly arranged in the longitudinal stepped farming pools and the transverse stepped farming pools. After the sea cucumbers and abalones are put in, the volume of the farming tail water in the longitudinal stepped farming pools and the transverse stepped farming pools is controlled by adjusting the angle and height of the drain pipe. The transverse stepped farming pools are inflated with air and the light is blocked by a sunshade to ensure the light and temperature in the longitudinal stepped farming pools and the transverse stepped farming pools. After sedimentation, the organic suspended particles in the farming tail water are precipitated to the tile attachment base and the bottom of the longitudinal stepped farming pools and the transverse stepped farming pools for the sea cucumbers and abalones to ingest.

[0017] The advantages and positive effects of the present invention are:

[0018] 1. The culture ponds of the present invention are arranged in a stepped manner, and water can be completely replaced by gravity, thus saving power.

[0019] 2. The present invention treats aquaculture tail water by cultivating sea cucumbers, abalones and other marine delicacies, and can effectively utilize wastes such as residual bait and feces in the aquaculture tail water, thereby achieving tail water treatment and increasing economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is one of the three-dimensional structural schematic diagrams of the facility of the present invention;

[0021] Figure 2 The second schematic diagram of the three-dimensional structure of the facility of the present invention;

[0022] Figure 3 This is one of the physical pictures of the facility of the present invention at the test site;

[0023] Figure 4 This is the second physical picture of the facility of the present invention at the test site;

[0024] Figure 5 The third physical picture of the facility of the present invention at the test site;

[0025] Among them: 1 is a screen, 2 is a gate, 3 is a water pipe, 4 is a drainage pipe, 5 is an air pump, 6 is an air pipe A, 7 is an air valve, 8 is a longitudinal step-type breeding pond, 9 is a transverse step-type breeding pond, 10 is a tile attachment base, 11 is a sunshade, and 12 is an air pipe B. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 , Figure 2 As shown, the facility of the present invention includes a water flow control device and a breeding device, wherein the water flow control device includes a screen 1, a gate 2 and a drain pipe 4, the breeding device includes a longitudinal step-type breeding pool 8, a transverse step-type breeding pool 9 and a tile attachment base 10, the length direction of the longitudinal step-type breeding pool 8 is the flow direction of breeding tail water, the water inlet end of the longitudinal step-type breeding pool 8 in the length direction is provided with a screen 1, and the water outlet end is installed with a drain pipe 4, a transverse step-type breeding pool 9 is provided on one side in the length direction of the longitudinal step-type breeding pool 8, a gate 2 is provided between the water inlet end of the transverse step-type breeding pool 9 and the longitudinal step-type breeding pool 8, a drain pipe 4 is installed at a position of the transverse step-type breeding pool 9 away from the gate 2, the length direction of the transverse step-type breeding pool 9 is perpendicular to the length direction of the longitudinal step-type breeding pool 8, and the flow direction of the breeding tail water entering the transverse step-type breeding pool 9 through the gate 2 is "S"-shaped; the bottom of the longitudinal step-type breeding pool 8 and the transverse step-type breeding pool 9 are both installed with a tile attachment base 10.

[0028] In this embodiment, sea cucumbers, Haliotis diffusa and other sediment-feeding high-value aquaculture species are selected as aquaculture objects to ensure the treatment effect and economic benefits of aquaculture tail water.

[0029] The longitudinal stepped culture pond 8 of this embodiment is divided into a plurality of culture ponds arranged in a stepped manner along the length direction, with a slope greater than 5°, which can ensure that the culture tail water (i.e., the culture tail water on the top layer) entering through the screen 1 can flow through each culture pond in sequence by gravity. Each culture pond of the longitudinal stepped culture pond 8 of this embodiment is rectangular, 400 cm long, 200 cm wide, and 100 cm deep. The middle of the bottom of each culture pond along the length direction is lower than the two sides, that is, the bottom of each culture pond is "V"-shaped, and the middle is 3 to 5 cm lower than the two sides. A drain outlet is opened at the bottom of the culture pond at the lowest point in the longitudinal stepped culture pond 8, and the drain outlet is 10 cm away from the lower pool wall of the lowest culture pond. A drain pipe 4 is installed at the drain outlet, and the height of the drain pipe 4 can be selected according to the water use height, thereby realizing that the height of the drain pipe 4 is adjustable. In the longitudinal stepped culture pond 8 of the present embodiment, two adjacent culture ponds share a pool wall, that is, the lower pool wall of the upper layer of culture ponds is the upper pool wall of the lower layer of culture ponds, and a water guide pipe 3 is installed at the bottom of the shared pool wall; the material of the water guide pipe 3 of the present embodiment is PVC (polyvinyl chloride), and the water guide pipe 3 is "L"-shaped, the "L"-shaped vertical pipe is the water inlet side (90 cm high), and the angle with the bottom of the culture pond can be adjusted to adjust the water level of the culture pond, and the "L"-shaped horizontal pipe is the water outlet side (15 cm long) and is connected to the next adjacent culture pond.

[0030] The transverse stepped breeding pond 9 of this embodiment is divided into a plurality of breeding ponds arranged in a stepped manner along the width direction, with a slope greater than 5°, which can ensure that the breeding tail water (i.e., the breeding tail water on the top layer) entering through the gate 2 can flow through each breeding pond in sequence by gravity. The width direction of the transverse stepped breeding pond 9 is in the same direction as the length direction of the longitudinal stepped breeding pond 8. Each breeding pond of the transverse stepped breeding pond 9 of this embodiment is rectangular, 2000 cm long, 200 cm wide, and 100 cm deep. The middle of the bottom of each breeding pond along the length direction is lower than the two sides, that is, the bottom of each breeding pond is "V"-shaped, and the middle is 3 to 5 cm lower than the two sides. A gate 2 is set at one end of the horizontal step-type breeding pond 9 in the length direction of the highest point of the breeding pond. If the amount of factory breeding tail water is greater than the water body that can be accommodated in the longitudinal step-type breeding pond 8, the gate 2 is opened to divert the breeding tail water to the horizontal step-type breeding pond 9; each breeding pond is provided with a drain outlet at the bottom of one end (i.e., the other end opposite to the gate) away from the longitudinal step-type breeding pond 8, and the drain outlet is 10 cm away from the pool wall in the width direction. Each drain outlet is installed with a drain pipe 4, and the height of the drain pipe 4 can be selected according to the water use height, thereby realizing that the height of the drain pipe 4 is adjustable. In this embodiment, the adjacent breeding ponds of the horizontal step-type breeding pond 9 share a pool wall, that is, the lower pool wall in the length direction of the upper layer of the breeding pond is the upper pool wall in the length direction of the lower layer of the breeding pond, and a water guide pipe 3 is installed on the shared pool wall. The water guide pipes 3 on the adjacent two shared pool walls are respectively located at both ends of the width direction of the horizontal step-type breeding pond 9, thereby realizing that the breeding tail water flows in the horizontal step-type breeding pond 9 in an "S" shape. The material of the water pipe 3 of this embodiment is PVC (polyvinyl chloride), and the water pipe 3 is "L"-shaped. The "L"-shaped vertical pipe is the water inlet side (90 cm high), and the angle with the bottom of the breeding pond can be adjusted to adjust the water level of the breeding pond. The "L"-shaped horizontal pipe is the water outlet side (15 cm long) and is connected to the next adjacent breeding pond.

[0031] Taking into account that the horizontal water exchange time of the horizontal stepped culture pool 9 is relatively long and the length of each culture pool is also relatively long, the present embodiment also includes an oxygenation device, which includes an air pump 5, an air pipe A6, an air valve 7 and an air pipe B12. The air pipe A6 is installed on the pool wall between the longitudinal stepped culture pool 8 and the horizontal stepped culture pool 9, and the air pump 5 is connected to the air pipe A6; each culture pool of the horizontal stepped culture pool 9 is provided with an air pipe B12 along the length direction, and the air pipe B12 is located at the center of the bottom of the culture pool to ensure uniform and sufficient inflation. Each air pipe B12 is connected to the air pipe A6 and an air valve 7 is provided at the connection, that is, the air pipe A6 is connected in parallel with the air pipe B12 having the same number and one-to-one correspondence as the culture pools in the horizontal stepped culture pool 9.

[0032] A sunshade 11 is installed on the pool wall of the horizontal step-type breeding pool 9 or on the pool wall of the longitudinal step-type breeding pool 8 and the horizontal step-type breeding pool 9. In this embodiment, a sunshade bracket is installed on the pool wall of each breeding pool of the horizontal step-type breeding pool 9, and a sunshade 11 is installed on the sunshade bracket to block light, rain and wind. The material of the sunshade 11 is polyethylene.

[0033] The method for treating factory breeding tail water by using sea cucumber and abalone of the present invention comprises the following steps: using the above-mentioned facility for treating factory breeding tail water by using sea cucumber and abalone, using tail water discharged daily by factory breeding as breeding water for sea cucumber and halocarpus discus, and reasonably arranging the number of longitudinal step breeding pools 8 and transverse step breeding pools 9 according to the amount of breeding tail water discharged; the factory breeding tail water enters the longitudinal step breeding pool 8 through a screen 1, and a gate 2 is opened and closed according to the amount of breeding tail water generated, so that the breeding tail water is diverted into the transverse step breeding pool 9, and the breeding tail water is distributed in each breeding pool of the longitudinal step breeding pool 8 and the transverse step breeding pool 9 by gravity under the drainage action of a water guide pipe 3 in the longitudinal step breeding pool 8 and the transverse step breeding pool 9, and a tile attachment base 10 is evenly arranged in the longitudinal step breeding pool 8 and the transverse step breeding pool 9, and after the sea cucumber and halocarpus discus are put in, the volume of breeding tail water in the longitudinal step breeding pool 8 and the transverse step breeding pool 9 is controlled by adjusting the angle and height of a drainage pipe 4. After precipitation, the organic suspended particles contained in the aquaculture tail water are precipitated to the tile attachment base 10 and the bottom of the aquaculture pond, and can be eaten by sea cucumbers and wrinkled abalones. By cultivating sea cucumbers and wrinkled abalones, the residual bait, feces and other waste organic pollutants in the factory aquaculture tail water are processed, and the suspended matter in the aquaculture tail water is effectively reduced. By inflating the horizontal step-type aquaculture pond 9 and using the awning 11 to block the light, the light and temperature in the longitudinal step-type aquaculture pond 8 and the horizontal step-type aquaculture pond 9 are guaranteed, and the aquaculture tail water treatment is realized while increasing the economic benefits, reducing the bait input, and reducing the tail water pollution.

[0034] Experimental example

[0035] The present invention Figures 3 to 5 All of them are real photos. The experiment was conducted in a breeding enterprise in Rongcheng City, Weihai. The facility of the present invention was built in the open space outside the breeding farm. The suspended solids in the breeding water can reach 45±5 mg / L. After being treated by the facility of the present invention, the removal rate of suspended solids can reach more than 85%.

[0036] The present invention has high removal efficiency for organic pollutants in factory aquaculture tail water, low operating cost, and the cultivated sea cucumbers and halibut discus hannai have high economic value, and can be used for the treatment of factory aquaculture tail water.

[0037] The above description is only an embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A facility for treating factory aquaculture tail water using sea cucumbers and abalones, characterized by: The invention comprises a water flow control device and a breeding device, wherein the water flow control device comprises a screen (1), a gate (2) and a drainage pipe (4); the breeding device comprises a longitudinal stepped breeding pool (8), a transverse stepped breeding pool (9) and a tile attachment base (10); the longitudinal direction of the longitudinal stepped breeding pool (8) is the flow direction of breeding tail water; the water inlet end of the longitudinal stepped breeding pool (8) is provided with a screen (1) and the water outlet end is provided with a drainage pipe (4); one side of the longitudinal stepped breeding pool (8) is provided with a transverse stepped breeding pool (9); A gate (2) is provided between the water inlet end of the transverse step-type breeding pond (9) and the longitudinal step-type breeding pond (8); a drainage pipe (4) is installed at a position of the transverse step-type breeding pond (9) away from the gate (2); the length direction of the transverse step-type breeding pond (9) is perpendicular to the length direction of the longitudinal step-type breeding pond (8); the breeding tail water flowing into the transverse step-type breeding pond (9) through the gate (2) is in an "S" shape; and a tile attachment base (10) is installed at the bottom of both the longitudinal step-type breeding pond (8) and the transverse step-type breeding pond (9).

2. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 1, characterized in that: The longitudinal stepped culture pond (8) is divided into a plurality of culture ponds arranged in a stepped manner along the length direction, and the culture tail water entering through the screen (1) flows through each culture pond in sequence by gravity.

3. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 2, characterized in that: The bottom of each of the longitudinally stepped culture ponds (8) is lower in the middle along the length direction than the two sides, and a drainage outlet is provided at the bottom of the culture pond at the lowest point, and a height-adjustable drainage pipe (4) is installed at the drainage outlet.

4. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 2, characterized in that: A water guide pipe (3) is installed at the bottom of the wall between two adjacent culture ponds of the longitudinal stepped culture pond (8), and the water guide pipe (3) is in an "L" shape. The "L"-shaped vertical pipe is the water inlet side, and the angle with the bottom of the culture pond can be adjusted. The "L"-shaped horizontal pipe is the water outlet side, and is connected to the next adjacent culture pond.

5. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 1, characterized in that: The transverse stepped culture pond (9) is divided into a plurality of culture ponds arranged in a stepped manner along the width direction, and the culture tail water entering through the gate (2) flows through each culture pond in sequence by gravity.

6. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 5, characterized in that: The bottom of each of the transverse stepped culture ponds (9) is lower in the middle along the length direction than the two sides. A drainage outlet is provided at the bottom of each of the culture ponds away from the end of the longitudinal stepped culture pond (8), and each of the drainage outlets is equipped with a height-adjustable drainage pipe (4).

7. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 5, characterized in that: A water guide pipe (3) is installed on the pool wall between two adjacent culture pools of the transverse stepped culture pool (9); the water guide pipes (3) on the two adjacent pool walls are respectively located at two ends of the width direction of the transverse stepped culture pool (9), thereby realizing that the culture tail water flows in the transverse stepped culture pool (9) in an "S" shape; the water guide pipe (3) is in an "L" shape, the "L"-shaped vertical pipe is the water inlet side, and the angle with the bottom of the culture pool can be adjusted, and the "L"-shaped horizontal pipe is the water outlet side, which is connected to the next adjacent culture pool.

8. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 1, characterized in that: The invention also comprises an oxygenation device, the oxygenation device comprising an air pump (5), an air pipe A (6), an air valve (7) and an air pipe B (12); the transverse stepped culture pool (9) is divided into a plurality of culture pools arranged in a stepped manner along the width direction; an air pipe B (12) is laid in each culture pool of the transverse stepped culture pool (9) along the length direction; each of the air pipes B (12) is connected to the air pipe A (6) and an air valve (7) is provided at the connection; the air pump (5) is connected to the air pipe A (6).

9. The facility for treating factory aquaculture tail water using sea cucumbers and abalone according to claim 1, characterized in that: A sunshade (11) for shading, rainproofing and windproofing is installed on the wall of the transverse stepped culture pond (9) or on the wall of the longitudinal stepped culture pond (8) and the transverse stepped culture pond (9).

10. A method for treating factory aquaculture tail water using sea cucumbers and abalones, characterized in that: The facility for treating factory aquaculture tail water using sea cucumbers and abalone as claimed in any one of claims 1 to 9 is used, and the tail water discharged daily from factory aquaculture is used as aquaculture water for sea cucumbers and abalone. According to the amount of aquaculture tail water discharged, the number of the longitudinal stepped aquaculture ponds (8) and the transverse stepped aquaculture ponds (9) to be used is reasonably arranged; the factory aquaculture tail water enters the longitudinal stepped aquaculture ponds (8) through the screen (1), and the gate (2) is opened and closed according to the amount of aquaculture tail water generated, so that the aquaculture tail water is diverted into the transverse stepped aquaculture ponds (9), and the longitudinal stepped aquaculture ponds (8) and the transverse stepped aquaculture ponds (9) are evenly arranged. After sea cucumbers and abalone are placed in the tile attachment base (10), the volume of aquaculture tail water in the longitudinal step-type aquaculture pond (8) and the transverse step-type aquaculture pond (9) is controlled by adjusting the angle and height of the drainage pipe (4), and the light and temperature in the longitudinal step-type aquaculture pond (8) and the transverse step-type aquaculture pond (9) are ensured by inflating air into the transverse step-type aquaculture pond (9) and using the sunshade (11) to block light; after sedimentation, the organic suspended particles in the aquaculture tail water are precipitated to the tile attachment base (10) and the bottom of the longitudinal step-type aquaculture pond (8) and the transverse step-type aquaculture pond (9) to be ingested by the sea cucumbers and abalone.

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