Ecological treatment device for aquaculture tail water

Abstract

An aquaculture tail water ecological treatment device comprises a settling pond, the settling pond is horizontally arranged in a quarter arc shape, a water inlet is formed in the head end of the settling pond, a water retaining interlayer is arranged on the inner wall of the settling pond to form a zigzag water channel, a mud discharge channel is formed in the bottom of the settling pond, and the tail end of the settling pond is connected with one end of a first filter dam; the other end of the filter dam is connected with one end of an aeration tank, the aeration tank is transversely arranged, the inner walls of the two ends of the aeration tank are respectively provided with aeration equipment, the other end of the aeration tank is connected with one side surface of a second filter dam, the other side surface of the second filter dam is connected with the long side surface of an ecological tank, and activated sludge is added into the ecological tank. A plurality of ecological floating beds are placed in the ecological pool, a sludge discharge port is formed in the bottom of the ecological pool, and a water outlet is formed in the arc-shaped inner wall of the ecological pool. Therefore, specific pollutants in the aquaculture tail water can be effectively treated, and the occupied area of the whole system is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pollution control, and in particular relates to an ecological treatment device for aquaculture tail water. Background Art

[0002] Aquaculture tailwater refers to wastewater discharged into the external environment during the aquaculture process. This wastewater primarily consists of unconsumed feed, metabolic products of farmed animals, drug residues, and pollutants generated by various biological activities in the water. Aquaculture tailwater contains large amounts of organic matter, nitrogen, phosphorus, and other nutrients. These substances, when discharged directly into the natural environment without treatment, can pollute the water. High-density, intensive aquaculture practices result in large amounts of nitrogen, phosphorus, and other nutrients in aquaculture tailwater. The accumulation of these substances in the water can lead to eutrophication, triggering algae blooms, consuming oxygen in the water, causing water quality deterioration, and impacting the survival of other aquatic organisms.

[0003] The "three ponds and two dams" system is a widely used method for treating aquaculture effluent, but most of the "three ponds and two dams" process systems have problems such as large footprint and insufficient targeting of pollutants. Utility Model Content

[0004] In response to the above-mentioned problems in the prior art, the utility model provides an ecological treatment device for aquaculture tail water, which can effectively treat the unique pollutants in the aquaculture tail water, thereby reducing the footprint of the entire system.

[0005] The utility model is implemented through the following technical solutions: an ecological treatment device for aquaculture tail water, comprising a sedimentation tank, the sedimentation tank being arranged horizontally in a quarter arc shape, a water inlet being provided at the head end of the sedimentation tank, a water retaining barrier being provided on the inner wall of the sedimentation tank to form a zigzag waterway, a mud drainage channel being provided at the bottom of the sedimentation tank, the tail end of the sedimentation tank being connected to one end of a first filter dam, the other end of the filter dam being connected to one end of an aeration tank, the aeration tank being arranged horizontally, aeration equipment being provided on the inner walls at both ends of the aeration tank, the other end of the aeration tank being connected to one side of a second filter dam, the other end of the second filter dam being connected to one side of the second filter dam. One side is connected to the long side of the ecological pond, activated sludge is added to the ecological pond, and multiple ecological floating beds are placed horizontally in the ecological pond. The biological floating bed contains multiple floating blocks, and the multiple floating blocks are rectangular. The multiple floating blocks are arranged in a Y-shape. One end of the multiple floating blocks is connected to the connecting frame on both sides. The frame is nested with multiple planting frames, and the upper ends of the multiple planting frames are symmetrically provided with blocks. A mud discharge port is provided at the bottom of the ecological pond, and a water outlet is provided on the curved inner wall of the ecological pond; the sedimentation tank, the first filter dam, the second filter dam, the aeration tank, and the ecological pond are connected through.

[0006] Furthermore, the aquaculture tail water ecological treatment device is semicircular as a whole.

[0007] Furthermore, the sedimentation tank, the first filter dam, the second filter dam, the aeration tank, and the ecological pond are integrated.

[0008] Furthermore, the depth of the sedimentation tank is a, the depth of the aeration tank is b, and the depth of the ecological pool is c. The relationship between the depths is a <b<c。

[0009] Furthermore, the inclined wall of the mud drainage channel is greater than 60°.

[0010] Furthermore, the aeration equipment is an immersed turbine aerator.

[0011] Furthermore, the activated sludge is Nitrospira.

[0012] Furthermore, a plurality of the ecological floating beds are planted with aquatic plants, and the aquatic plants include water sunflower, lilac, windmill grass, red dragon grass, and broad-leaved cattail.

[0013] Beneficial effects: The utility model first uses a sedimentation tank to remove suspended matter in aquaculture tail water through gravity sedimentation to perform preliminary treatment on the water body. The water retaining barrier in the pool is zigzag to extend the waterway, making the sedimentation effect more outstanding. Then, the organic matter in the water body is digested by aeration through the aeration tank. Finally, the nitrifying bacteria and biological floating bed in the ecological pool are used to deeply treat the nitrite in the water. The biological floating bed can effectively assist the nitrification reaction of nitrifying bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a plan view of an aquaculture tailwater ecological treatment device according to one embodiment of the utility model;

[0015] Figure 2 This is a detailed diagram of an ecological floating bed according to an embodiment of the present utility model;

[0016] Figure 3 This is a three-dimensional diagram of an aquaculture tailwater ecological treatment device according to one embodiment of the utility model.

[0017] In the figure: sedimentation tank 10, water inlet 11, water retaining barrier 12, mud discharge channel 13, aeration tank 20, aeration device 21, ecological pond 30, ecological floating bed 31, mud discharge port 32, water outlet 33, first filter dam 40, second filter dam 41, biological floating bed 50, floating block 51, frame 52, planting frame 53, and block 54. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in this embodiment with reference to the accompanying drawings and embodiments.

[0019] The utility model is implemented through the following technical solutions: an ecological treatment device for aquaculture tail water, comprising a sedimentation tank, the sedimentation tank being arranged horizontally in a quarter arc shape, a water inlet being provided at the head end of the sedimentation tank, a water retaining barrier being provided on the inner wall of the sedimentation tank to form a zigzag waterway, a mud drainage channel being provided at the bottom of the sedimentation tank, the tail end of the sedimentation tank being connected to one end of a first filter dam, the other end of the filter dam being connected to one end of an aeration tank, the aeration tank being arranged horizontally, aeration equipment being provided on the inner walls at both ends of the aeration tank, the other end of the aeration tank being connected to one side of a second filter dam, the other end of the second filter dam being connected to one side of the second filter dam. One side is connected to the long side of the ecological pond, activated sludge is added to the ecological pond, and multiple ecological floating beds are placed horizontally in the ecological pond. The biological floating bed contains multiple floating blocks, and the multiple floating blocks are rectangular. The multiple floating blocks are arranged in a Y-shape. One end of the multiple floating blocks is connected to the connecting frame on both sides. The frame is nested with multiple planting frames, and the upper ends of the multiple planting frames are symmetrically provided with blocks. A mud discharge port is provided at the bottom of the ecological pond, and a water outlet is provided on the curved inner wall of the ecological pond; the sedimentation tank, the first filter dam, the second filter dam, the aeration tank, and the ecological pond are connected through.

[0020] In this embodiment, the aquaculture tail water ecological treatment device is semicircular in shape as a whole.

[0021] In this embodiment, the sedimentation tank, the first filter dam, the second filter dam, the aeration tank, and the ecological pond are integrated.

[0022] In this embodiment, the sedimentation tank depth is a, the aeration tank depth is b, and the ecological pool depth is c. The relationship between the pool depths is a <b<c。

[0023] In this embodiment, the inclined wall of the mud drainage channel is greater than 60°.

[0024] In this embodiment, the aeration equipment is a submerged turbine aerator.

[0025] In this embodiment, the activated sludge is Nitrospira.

[0026] In this embodiment, a plurality of the ecological floating beds are planted with aquatic plants, and the aquatic plants include water sunflower, lilac, windmill grass, red dragon grass, and broad-leaved cattail.

[0027] The present invention has been described in detail above in conjunction with the embodiments. Various improvements can be made without departing from the core scope of the present invention, and equivalents can be used to replace the components therein. As long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be used in combination with each other in any way. These combinations are not described exhaustively in this specification, which is simply for the sake of saving space and resources. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed herein, but covers all technical solutions that fall within the scope of the claims.

Claims

1. An aquaculture tailwater ecological treatment device, characterized in that: The invention comprises a sedimentation tank, wherein the sedimentation tank is arranged horizontally in a quarter arc shape, a water inlet is provided at the head end of the sedimentation tank, a water retaining barrier is provided on the inner wall of the sedimentation tank to form a zigzag waterway, a mud discharge channel is provided at the bottom of the sedimentation tank, the tail end of the sedimentation tank is connected to one end of the first filter dam, the other end of the filter dam is connected to one end of the aeration tank, the aeration tank is arranged horizontally, and aeration equipment is provided on the inner walls at both ends of the aeration tank, the other end of the aeration tank is connected to one side of the second filter dam, the other side of the second filter dam is connected to the long side of the ecological pool, and the ecological pool is provided with a water inlet. Activated sludge is added to the ecological pool, and multiple ecological floating beds are horizontally placed in the ecological pool. The ecological floating beds contain multiple floating blocks, and multiple floating blocks are rectangular and arranged in a Y-shape. One end of the multiple floating blocks is connected to the connecting frame on both sides. The frame is nested with multiple planting frames, and the upper ends of the multiple planting frames are symmetrically provided with blocks. A mud discharge port is provided at the bottom of the ecological pool, and a water outlet is provided on the curved inner wall of the ecological pool; the sedimentation tank, the first filter dam, the second filter dam, the aeration tank, and the ecological pool are through-connected.

2. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: The aquaculture tail water ecological treatment device is semicircular in shape as a whole.

3. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: The sedimentation tank, the first filter dam, the second filter dam, the aeration tank, and the ecological tank are integrated.

4. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: The sedimentation tank has a depth of a, the aeration tank has a depth of b, and the ecological pool has a depth of c. The relationship between the depths is a <b<c。 5. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: The inclined wall of the mud drainage channel is greater than 60°.

6. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: The aeration equipment is an immersed turbine aerator.

7. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: The activated sludge is Nitrospira.

8. The aquaculture tailwater ecological treatment device according to claim 1, characterized in that: Aquatic plants are planted on multiple ecological floating beds, and the aquatic plants include water sunflower, lilac, windmill grass, red dragon grass, and broad-leaved cattail.

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