Biological bed device applied to fishpond culture tail water

Abstract

The utility model discloses a biological bed device applied to fishpond culture tail water. The biological bed device comprises an anaerobic biological filter bed and an aerobic biological filter bed, an anaerobic biological filter bed is arranged in the sedimentation tank; an aerobic biological filter bed is arranged in the aeration tank, and an aeration mechanism is arranged below the aerobic biological filter bed; an ecological pool; a circulating pump; and the electric control system is respectively in signal connection with the aeration mechanism and the circulating pump. After sewage enters the sedimentation tank, flora on the anaerobic biological filter bed plays a role in removal and degradation, the sewage flows into the aeration tank after primary degradation, and pollutants in the sewage are converted and utilized by flora on the aerobic biological filter bed. And the circulating pump is arranged between the ecological pond at the tail end and the sedimentation pond, so that sewage flows back to the sedimentation pond to further enhance the absorption and degradation of pollutants, the sewage can be degraded to the greatest extent, the concentrated retention time of the sewage is shortened, and the operation cycle of the ecological system is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a biological bed device for use in fishpond aquaculture tailwater. Background Technology

[0002] Fishpond aquaculture wastewater is a type of wastewater generated in the aquaculture industry. If it is discharged into the environment without proper treatment, it will put enormous pressure on water resources and the ecological environment.

[0003] Currently, the main approach in this field is to artificially control and regulate the ecosystem of aquaculture ponds to allow them to naturally degrade and filter pollutants, thereby reducing volatile and oxidized pollutants and purifying the water. This treatment method can not only improve aquaculture efficiency and reduce environmental pollution, but also save energy, reduce costs, and enhance the sustainable development of the aquaculture industry. However, this type of treatment method also has disadvantages such as long effluent treatment retention time and long ecosystem operation and commissioning cycle. Utility Model Content

[0004] The purpose of this invention is to provide a biological bed device for use in fishpond aquaculture wastewater to solve the above-mentioned problems.

[0005] According to one aspect of this utility model, a biological bed device for fishpond aquaculture wastewater is provided, comprising: an anaerobic biological filter bed and an aerobic biological filter bed, both of which include a support frame, a grid being provided on the top of the support frame, and multiple braided biological packing materials suspended from the grid; a sedimentation tank having a first inlet and a first outlet, the first inlet being connected to the outlet of the fishpond aquaculture wastewater, the anaerobic biological filter bed being disposed within the sedimentation tank; an aeration tank having a second inlet and a second outlet, the second inlet being connected to the first outlet, the aeration tank having the aerobic biological filter bed being disposed within the aeration tank, and an aeration mechanism being disposed below the aerobic biological filter bed; an ecological pond having a third inlet and a third outlet, the third inlet being connected to the second outlet; a circulating pump being connected between the third outlet and the first inlet; and an electrical control system being signal-connected to the aeration mechanism and the circulating pump, respectively.

[0006] In some embodiments, the support frame includes a main frame and support rods, the support rods being disposed at the lower part of the main frame, the grid being composed of multiple interwoven ropes, and the braided biological packing material being suspended at the interlacing points of the ropes.

[0007] In some embodiments, the main frame is a PVC plastic pipe, the support rod is a galvanized steel pipe, and the rope is an aldehyde-treated filament.

[0008] In some embodiments, the aeration mechanism includes an aeration pipe, an aeration fan, a fixed support, and an aeration head. The fixed support is fixed below the aerobic biological filter bed, the aeration head is disposed on the fixed support, the aeration fan is disposed on one side of the aeration tank, the aeration fan is connected to the aeration head through the aeration pipe, and the aeration fan is signal-connected to the electrical control system.

[0009] In some embodiments, a return pipe is provided between the third outlet and the first inlet, and the circulation pump is disposed inside the return pipe.

[0010] Compared with the prior art, the beneficial effects of this application are as follows:

[0011] After the fishpond aquaculture wastewater enters the sedimentation tank of this application, the bacteria on the anaerobic biological filter bed play a role in removing and degrading it. After preliminary degradation, the wastewater flows into the aeration tank, where the bacteria on the aerobic biological filter bed transform and utilize the wastewater pollutants. A circulation pump is set up between the ecological tank and the sedimentation tank at the end to return the wastewater to the sedimentation tank to further enhance the absorption and degradation of pollutants. The wastewater can be degraded to the maximum extent, reducing the concentrated residence time of wastewater and accelerating the operation cycle of the ecosystem. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall flow direction structure of this utility model;

[0013] Figure 2 This is a top view schematic diagram of the anaerobic or aerobic biofilter bed of this utility model;

[0014] Figure 3 This is a side view of the anaerobic or aerobic biofilter of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] refer to Figures 1 to 3This application provides a biological bed device for fishpond aquaculture wastewater, comprising: an anaerobic biological filter bed 1 and an aerobic biological filter bed 2, both of which include a support frame 3, with a grid 4 on the top of the support frame 3, and multiple braided biological packing materials 5 suspended from the grid 4; a sedimentation tank 6, equipped with a first inlet 7 and a first outlet, the first inlet 7 being connected to the outlet of the fishpond aquaculture wastewater, and the anaerobic biological filter bed 1 being installed inside the sedimentation tank 6; and an aeration system. Aeration tank 8 is equipped with a second inlet 9 and a second outlet, the second inlet 9 being connected to the first outlet. An aerobic biological filter bed 2 is installed inside the aeration tank 8, and an aeration mechanism is installed below the aerobic biological filter bed 2. Ecological pond 10 is equipped with a third inlet 11 and a third outlet, the third inlet 11 being connected to the second outlet. Circulation pump 12 is connected between the third outlet and the first inlet 7. The electrical control system is connected to the aeration mechanism and circulation pump 12 respectively.

[0017] Anaerobic biological filter bed 1 provides attachment points for microorganisms, which helps to accelerate the formation of microbial film and enhance the purification effect of biological treatment.

[0018] The aeration mechanism helps the aerobic biological filter bed 2 to form an aerobic bacterial community, thereby enhancing the removal effect on specific pollutants.

[0019] In some embodiments, the support frame 3 includes a main frame and support rods, with the support rods located at the lower part of the main frame. The grid 4 is made of multiple interwoven ropes, and the braided biological filler 5 is suspended at the intersection of the ropes.

[0020] In some embodiments, the main frame is a PVC plastic pipe, the support rod is a galvanized steel pipe, and the rope is an aldehyde-treated wire; the main frame of this application can be a PVC plastic pipe with an external size of 2m*2m and a grid spacing of 20cm.

[0021] In some embodiments, the aeration mechanism includes an aeration pipe, an aeration fan 13, a fixed support 14, and an aeration head 15. The fixed support 14 is fixed below the aerobic biological filter bed 2, the aeration head 15 is disposed on the fixed support 14, the aeration fan 13 is disposed on one side of the aeration tank 8, the aeration fan 13 is connected to the aeration head 15 through the aeration pipe, and the aeration fan 13 is connected to the electrical control system signal.

[0022] The electrical control system can control the operation and shutdown of the circulating pump 12 and the aeration fan 13.

[0023] In some embodiments, a return pipe is provided between the third outlet and the first inlet 7, and the circulation pump 12 is installed inside the return pipe.

[0024] The addition of circulation pump 12 increases the residence time of sewage in sedimentation tank 6 and aeration tank 8, thereby improving the removal effect of sewage pollutants. By controlling circulation pump 12 through an electrical control system, the land area occupied by related equipment in the prior art can be reduced while ensuring sewage treatment effect and reducing land costs.

[0025] Within the ecological pond 10, various aquatic plants such as submerged, emergent, and floating-leaved plants are planted, and filter-feeding fish and benthic organisms such as snails and clams are stocked to absorb and utilize nitrogen and phosphorus nutrients in the water.

[0026] After the fishpond aquaculture wastewater enters the sedimentation tank 6 of this application, the bacteria on the anaerobic biological filter bed 1 play a role in removing and degrading it. After preliminary degradation, the wastewater flows into the aeration tank 8, where the bacteria on the aerobic biological filter bed 2 transform and utilize the wastewater pollutants. A circulation pump 12 is installed between the ecological pond 10 at the end and the sedimentation tank 6 to return the wastewater to the sedimentation tank 6 to further enhance the absorption and degradation of pollutants. The wastewater can be degraded to the maximum extent, reducing the concentrated residence time of wastewater and accelerating the operation cycle of the ecosystem.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A biological bed device for use in fishpond aquaculture wastewater, characterized in that, include: Anaerobic and aerobic biofilters are provided, each including a support frame. A grid is provided on the top of the support frame, and multiple braided biological packing materials are suspended from the grid. The sedimentation tank is equipped with a first inlet and a first outlet. The first inlet is connected to the outlet of the fishpond aquaculture wastewater. The anaerobic biological filter bed is installed in the sedimentation tank. An aeration tank is provided with a second inlet and a second outlet. The second inlet is connected to the first outlet. An aerobic biological filter bed is provided inside the aeration tank, and an aeration mechanism is provided below the aerobic biological filter bed. The ecological pond is equipped with a third inlet and a third outlet, wherein the third inlet is connected to the second outlet; A circulating pump is connected between the third outlet and the first inlet. The electronic control system is connected to the aeration mechanism and the circulation pump respectively.

2. The biological bed device for fishpond aquaculture wastewater according to claim 1, characterized in that, The support frame includes a main frame and support rods. The support rods are located at the lower part of the main frame. The grid is made of multiple interwoven ropes. The braided biological packing material is suspended at the intersection of the ropes.

3. The biological bed device for fishpond aquaculture wastewater according to claim 2, characterized in that, The main frame is a PVC plastic pipe, the support rod is a galvanized steel pipe, and the rope is an aldehyde-treated filament.

4. The biological bed device for fishpond aquaculture wastewater according to claim 1, characterized in that, The aeration mechanism includes an aeration pipe, an aeration fan, a fixed support, and an aeration head. The fixed support is fixed below the aerobic biological filter bed, the aeration head is set on the fixed support, the aeration fan is set on one side of the aeration tank, the aeration fan is connected to the aeration head through the aeration pipe, and the aeration fan is connected to the electrical control system.

5. The biological bed device for fishpond aquaculture wastewater according to claim 1, characterized in that, A return pipe is provided between the third outlet and the first inlet, and the circulation pump is installed inside the return pipe.

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