Zero-emission ecological system for pond culture

Abstract

The utility model discloses a pond culture zero-discharge ecological system which comprises a culture pond and a low-efficiency culture area arranged around the culture pond, a circulating water pump is arranged on one side of the culture pond and supplies water to the low-efficiency culture area, a water inlet communicated with the low-efficiency culture area is formed in the other side of the culture pond, and a water outlet communicated with the low-efficiency culture area is formed in the other side of the culture pond. Compared with the prior art, the low-efficiency culture area is arranged around the culture pond to serve as a water treatment area, construction of a tail water collecting pipe / channel can be omitted, and the construction cost of a fishpond tail water treatment facility is greatly reduced; moreover, the occupied area is small, the application range is wide, and the treated water can enter a culture pond in time for recycling, so that a zero-emission ecological system is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture ecology, in particular to a zero-emission ecological system for pond aquaculture. Background Art

[0002] With the development of society, modern requirements for environmental protection and green development of aquaculture are becoming increasingly higher.

[0003] The existing pond aquaculture tailwater treatment generally adopts the "three ponds and two dams" model. Although the "three ponds and two dams" treatment process is mature and reliable, it is more suitable for the collection and treatment of tailwater from contiguous fish ponds.

[0004] However, there are certain defects. The "three ponds and two dams" are not suitable for decentralized or sporadic fish ponds, and the investment cost is high. The overall investment cost is significantly affected by the amount of new construction of tailwater collection pipes / channels. For example, in some fish pond areas where the original ditches were not dug reasonably, the construction cost per mu of the "three ponds and two dams" is quite high. Moreover, the treated water is only convenient for fish ponds near the "three ponds and two dams", and it is difficult to reuse it in other fish ponds. It has basically no positive effect on the water quality of most aquaculture ponds, and farmers are not willing to respond. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a zero-emission ecosystem for pond aquaculture.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A zero-emission ecosystem for pond aquaculture comprises a breeding pond and an inefficient breeding area arranged around the breeding pond, wherein a circulating water pump is arranged on one side of the breeding pond to supply water to the inefficient breeding area, a water inlet connected to the inefficient breeding area is arranged on the other side of the breeding pond, and the inefficient breeding area is provided with an aquatic plant purification area and a composite filler area.

[0008] Furthermore, the breeding pond and the low-efficiency breeding area are separated by a water-blocking wall.

[0009] Furthermore, the water-blocking wall is arranged in a shallow water area on the slope of the breeding pond.

[0010] Furthermore, the area of ​​the inefficient breeding zone accounts for 4% to 8% of the total area of ​​the breeding pond.

[0011] Furthermore, an aeration device and / or an ecological floating island is provided in the breeding pond.

[0012] Furthermore, the aeration device is a jet aeration device or a mechanical aeration device.

[0013] Furthermore, the low-efficiency breeding area is also provided with a sedimentation area, and the water body passes through the sedimentation area, the composite filler area and the aquatic plant purification area in sequence.

[0014] Furthermore, the circulating water pump is provided with a Venturi pipe mixer.

[0015] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model is configured such that the construction of a tailwater collection pipe / channel is omitted because the low-efficiency breeding area is arranged around the breeding pond, thereby greatly reducing the cost; the utility model occupies a small area and has a wide range of applications, and the treated water can be promptly introduced into the breeding pond for recycling, thereby realizing a zero-emission ecosystem; by arranging the water-blocking wall in the shallow water area of ​​the slope, such a design will basically not affect the breeding output of the fish pond itself, and has higher economic benefits; by arranging an aeration device and an ecological floating island in the breeding pond, the water treatment efficiency is further improved, and ultimately a zero-emission ecosystem is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] Reference Figure 1, a zero-emission ecosystem for pond farming, comprising a farming pond 1 and an inefficient farming area arranged around the farming pond 1. A circulating water pump 2 is arranged on one side of the farming pond 1, and the circulating water pump 2 supplies water to the inefficient farming area. A water inlet 3 connected to the inefficient farming area is arranged on the other side of the farming pond 1, and an isolation net or a retaining wall almost as high as the water surface is arranged at the water inlet 3. The water inlet 3 can be set as a vertically arranged narrow slit water inlet to achieve the water purification function and the function of maintaining the water level balance between the inefficient farming area and the farming pond 1. The inefficient farming area is provided with an aquatic plant purification area 4 and a composite filler area 5. The aquatic plant purification area 4 and the composite filler area 5 are separated by an isolation net. The aquatic plant purification area 4 is planted with various aquatic plants such as submerged, emergent, and floating leaves, and filter-feeding fish and benthic organisms such as snails and clams are also raised to absorb and utilize nitrogen and phosphorus nutrients in the water body. The composite filler area 5 is filled with filter materials such as expanded clay, volcanic rock, activated carbon, ecological filter cotton, coconut filter layer, etc. to adsorb, filter and transform organic matter, and provide activity and habitat for microorganisms, protozoa, animals, etc. to form a water purification biological community.

[0020] In the present embodiment, the water on one side of the breeding pond 1 enters the low-efficiency breeding area through the circulating water pump 2, and then passes through the composite filler area 5 and the aquatic plant purification area 4. Finally, the treated water is discharged from the water inlet 3 into the other side of the breeding pond 1, thereby forming a closed-loop ecology.

[0021] Compared with the prior art, the low-efficiency breeding area in this embodiment is arranged around the breeding pond 1, which can save the construction of tail water collection pipes / channels, greatly reducing costs; it also occupies a small area and has a wide range of applications, and the treated water can be promptly introduced into the breeding pond 1 for recycling, realizing a zero-emission ecosystem.

[0022] Furthermore, the breeding pond 1 and the low-efficiency breeding area are separated by a water-blocking wall 6. The design of this embodiment does not require digging a separate tailwater collection channel or pipeline, and occupies a smaller area.

[0023] Furthermore, the water barrier 6 is arranged in the shallow water area of ​​the slope of the breeding pond 1. Aquatic products generally do not like to move in the shallow water area of ​​the slope, so the shallow water area of ​​the slope in the breeding pond 1 is an inefficient breeding area. Therefore, the water barrier 6 is arranged in the shallow water area of ​​the slope, which will not significantly affect the breeding output, and the economic benefits are higher.

[0024] Furthermore, the area of ​​the low-efficiency breeding area accounts for 4% to 8% of the total area. The total area here is the total area of ​​the low-efficiency breeding area and the breeding pond. In this embodiment, the demand for water purification can be met by adjusting the amount of high-efficiency load filler within this area range without occupying too much area.

[0025] Furthermore, an aeration device 7 and / or an ecological floating island 8 are provided in the breeding pond 1. The aeration device 7 can be a waterwheel-type aerator, a fountain aerator, or a push-flow aerator. In this embodiment, the aeration device 7 and the ecological floating island 8 are used in combination, and the two complement each other. The bubbles generated by the aeration device 7 encounter the ecological floating island 8 during the floating process, and a part of the bubbles can be intercepted by the ecological floating island 8, which prolongs the retention time of the bubbles in the water and allows the bubbles to dissolve more oxygen in the water.

[0026] Furthermore, the aeration device 7 is a jet aeration device or a mechanical aeration device 7. The aeration device 7 can aerate the water body, and when used together with the ecological floating island 8 near the aeration area of ​​the aeration device 7, the water purification efficiency is higher.

[0027] Furthermore, the low-efficiency breeding area is also provided with a sedimentation area 9, and the water body passes through the sedimentation area 9, the composite filler area 5 and the aquatic plant purification area 4 in sequence. The sedimentation area 9 allows the water body to stay for a certain period of time to settle the suspended matter in the water body. At the same time, aquatic plants accounting for 30-40% of the area are planted in the sedimentation area 9 or an aquatic plant floating bed is set to absorb and utilize the nutrients in the water body, so that the purification effect of this embodiment is better.

[0028] Furthermore, the circulating water pump 2 is provided with a venturi pipe mixer. Such a design can achieve water vapor mixing and achieve a certain aeration effect.

[0029] The above implementation modes cannot limit the protection scope of the present invention. The equivalent modifications and changes made by those skilled in the art without departing from the overall concept of the present invention are still within the scope of the present invention.

Claims

1. A zero-emission ecosystem for pond farming, characterized in that: The invention comprises a breeding pond and an inefficient breeding area arranged around the breeding pond. A circulating water pump is arranged on one side of the breeding pond to supply water to the inefficient breeding area. A water inlet connected to the inefficient breeding area is arranged on the other side of the breeding pond. The inefficient breeding area is provided with an aquatic plant purification area and a composite filler area.

2. The zero-emission ecosystem for pond aquaculture according to claim 1, characterized in that: The breeding pond and the low-efficiency breeding area are separated by a water-blocking wall.

3. The zero-emission ecosystem for pond aquaculture according to claim 2, characterized in that: The water-blocking wall is arranged in a shallow water area on the slope of the breeding pond.

4. The zero-emission ecosystem for pond aquaculture according to claim 1, characterized in that: The area of ​​the low-efficiency breeding area accounts for 4% to 8% of the total area of ​​the breeding pond.

5. The zero-emission ecosystem for pond aquaculture according to claim 1, characterized in that: An aeration device and / or an ecological floating island are arranged in the breeding pond.

6. The zero-emission ecosystem for pond aquaculture according to claim 5, characterized in that: The aeration device is a jet aeration device or a mechanical aeration device.

7. The zero-emission ecosystem for pond aquaculture according to claim 1, characterized in that: The low-efficiency breeding area is also provided with a sedimentation area, and the water body passes through the sedimentation area, the composite filler area and the aquatic plant purification area in sequence.

8. The zero-emission ecosystem for pond aquaculture according to claim 1, characterized in that: The circulating water pump is provided with a Venturi pipeline mixer.

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