Integrated aquaculture wastewater purification system

Abstract

The utility model provides an integrated aquaculture wastewater purification system which comprises a first anoxic tank, an aerobic tank, a second anoxic tank, a water equalizing table, a water equalizing groove and a notch, the water equalizing table is arranged on the aerobic tank, and the notch and the water equalizing groove are formed in the water equalizing table, so that water in the first anoxic tank uniformly flows into the aerobic tank through the water equalizing groove, and when the water equalizing groove is blocked, the water equalizing tank is very convenient to clean, so that the water equalizing tank is convenient to clean while ensuring that wastewater uniformly flows into the aerobic tank; the problems that when a water inlet ring pipe is adopted in the past, blocking is prone to occurring, and cleaning is difficult are solved.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment technology, specifically to an integrated aquaculture wastewater purification system. Background Technology

[0002] When purifying aquaculture wastewater, if the AOA (Anoxic-Aerobic) method is used, it generally includes two separate anoxic tanks and one aerobic tank. The wastewater will flow into the anoxic tank, the aerobic tank, and the anoxic tank in sequence under the action of the pump. In order to ensure that the wastewater flows into the aerobic tank evenly, the water is generally introduced through an inlet ring pipe. If the inlet ring pipe is blocked, it is difficult to clean. Utility Model Content

[0003] The purpose of this invention is to design an integrated aquaculture wastewater purification system to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: It includes a first anoxic tank, an aerobic tank, and a second anoxic tank connected in sequence. A water distribution platform is provided at the top of the aerobic tank, and a water distribution trough communicating with the first anoxic tank is provided on the water distribution platform. Several gaps are distributed circumferentially on the water distribution platform. The aerobic tank is connected to the water distribution trough and the first anoxic tank through the gaps, and the bottom of the gaps is higher than the bottom of the water distribution trough.

[0004] Furthermore, the first anoxic tank is connected to a wastewater inlet pipe after solid-liquid separation treatment, and the upper part of the side wall of the aerobic tank opposite to the first anoxic tank is provided with several water outlet troughs connected to the second anoxic tank. The second anoxic tank is connected to a drain pipe.

[0005] Furthermore, the second anoxic tank is provided with several water distribution plates, each with several holes. The holes between two adjacent water distribution plates are staggered, and the diameter of the holes on the water distribution plates gradually increases along the direction away from the aerobic tank.

[0006] Furthermore, a filter plate is fixedly attached to the notch.

[0007] Furthermore, an inlet trough is provided between the filter plate and the inner wall of the water distribution platform, and an inlet column is connected to the bottom of the inlet trough. The bottom of the inlet column is not higher than half the depth of the aerobic tank.

[0008] Furthermore, several mounting rods are fixedly connected to the water distribution platform, and several slots are provided on the mounting rods. Several first suspension ropes are wound around the slots, and combined fiber packing is suspended on the first suspension ropes located inside the aerobic tank.

[0009] Furthermore, a second suspension rope is wound around several of the slots, and a carbon source is suspended on the second suspension rope located inside the aerobic tank.

[0010] Furthermore, the water distribution platform is provided with a settling trough, and the end of the mounting rod is provided with a limiting rod that cooperates with the settling trough.

[0011] Furthermore, the bottom of the aerobic tank is provided with several ring-shaped pipes, which are connected by connecting pipes. Several aeration discs are connected to the ring-shaped pipes and the connecting pipes. The ring-shaped pipes are connected to the air supply system through a pipe network.

[0012] Furthermore, the pipeline network includes an air inlet pipe connected to the gas supply system and two branch pipes connected to the air inlet pipe, with the two branch pipes symmetrically connected to the annular pipeline.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The aerobic tank of this utility model is equipped with a water distribution platform, which has a notch and a water distribution trough. Therefore, the water in the first anoxic tank will flow into the aerobic tank evenly through the water distribution trough. When the water distribution trough is blocked, it is also easy to clean. Therefore, this utility model ensures that the wastewater flows into the aerobic tank evenly, while preventing the problem of easy blockage and difficulty in cleaning that occurred when using the inlet ring pipe in the past. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a magnified schematic diagram of a part of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the first anoxic tank, the aerobic tank, and the second anoxic tank.

[0018] The components are: 1. Gap; 2. First anoxic tank; 3. Inlet column; 4. Groove; 5. Filter plate; 6. Mounting rod; 7. Water distribution plate; 8. Second anoxic tank; 9. Water distribution trough; 10. Aerobic tank; 11. Air inlet pipe; 12. Settling trough; 13. Air distribution pipe; 14. Connecting pipe; 15. Aeration disc; 16. Circular pipe; 17. Water distribution platform. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Example: Please refer to Figure 1-3An integrated aquaculture wastewater purification system includes a first anoxic tank 2, an aerobic tank 10, and a second anoxic tank 8 connected in sequence. A water distribution platform 17 is located at the top of the aerobic tank 10, and a water distribution trough 9 connected to the first anoxic tank 2 is located on the water distribution platform 17. Several gaps 1 are distributed circumferentially on the water distribution platform 17, and the aerobic tank 10 is connected to the water distribution trough 9 and the first anoxic tank 2 through these gaps 1. The bottom of the gaps 1 is higher than the bottom of the water distribution trough 9. This ensures that wastewater flows evenly into the aerobic tank 10, and also facilitates cleaning when the water distribution trough 9 becomes clogged. Therefore, this system ensures even wastewater flow into the aerobic tank while preventing the problems of easy clogging and difficult cleaning that often occur with the previous method of using an inlet loop pipe. Meanwhile, the first anoxic tank 2 is connected to a wastewater treatment tank after solid-liquid separation. The aerobic tank 10 has several outlet channels on the upper part of the side wall opposite to the first anoxic tank 2, which are connected to the second anoxic tank 8. A drain pipe is connected to the second anoxic tank 8, thus connecting the first anoxic tank 2, the aerobic tank 10, and the second anoxic tank 8. The second anoxic tank 8 has several water distribution plates 7 with holes. The holes on adjacent water distribution plates 7 are staggered, and the diameter of the holes on the water distribution plates 7 gradually increases along the direction away from the aerobic tank 10, ensuring that the wastewater in the aerobic tank 10 flows evenly into the second anoxic tank 8. A filter plate 5 is fixed to the notch 1 to facilitate the filtration of floating matter and other impurities. An inlet channel is provided between the filter plate 5 and the inner wall of the water distribution platform 17, and an inlet column 3 is connected to the bottom of the inlet channel. The bottom of the inlet column 3 is no higher than half the depth of the aerobic tank 10, further ensuring that the wastewater in the first anoxic tank 2 flows evenly into the aerobic tank 10 while facilitating the homogeneity of the solution inside the aerobic tank 10. Several mounting rods 6 are fixed to the water distribution platform 17, each with a groove 4. Several first suspension ropes are wound around the grooves 4, and combined fiber packing is suspended on the first suspension ropes inside the aerobic tank 10, providing attachment sites for microorganisms. Second suspension ropes are also wound around the grooves 4, and carbon sources, such as rice husk manure bags or chicken manure bags, are suspended on the second suspension ropes inside the aerobic tank 10, providing sufficient carbon for the microorganisms. The first and second suspension ropes can be arranged alternately to improve the microbial... The uniformity of the growth environment; a settling tank 12 is provided on the water leveling platform 17, and a limiting rod that cooperates with the settling tank 12 is provided at the end of the mounting rod 6 to facilitate the installation of the mounting rod 6; several ring pipes 16 are provided at the bottom of the aerobic tank 10, and the ring pipes 16 are connected by connecting pipes 14. Several aeration discs 15 are connected to the ring pipes 16 and the connecting pipes 14. The ring pipes 16 are connected to the air supply system through the pipe network to provide sufficient oxygen for the microorganisms; the pipe network includes an air inlet pipe 11 connected to the air supply system and two air distribution pipes 13 connected to the air inlet pipe 11. The two air distribution pipes 13 are symmetrically connected to the ring pipes 16, thereby realizing uniform air intake of the ring pipes 16; the air supply system can be a conventional air supply system, such as a blower.

[0021] Working principle: As the wastewater level in the first anoxic tank 2 rises, the wastewater first reaches the bottom of the equalization tank 9 and enters the equalization tank 9. Then the wastewater level reaches the bottom of the gap 1. At this time, the wastewater will flow into the aerobic tank 10 through several gaps 1, thereby achieving uniform flow of wastewater into the aerobic tank 10. When the equalization tank 9 is blocked, it is also easy to clean. Therefore, this invention ensures uniform flow of wastewater into the aerobic tank while preventing the problem of easy blockage and difficult cleaning that occurred when using the inlet ring pipe in the past.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An integrated aquaculture wastewater purification system, characterized by: The application relates to a wastewater treatment device, which comprises a first anoxic tank (2), an aerobic tank (10) and a second anoxic tank (8) connected in sequence, wherein the top of the aerobic tank (10) is provided with a water equalizing table (17), the water equalizing table (17) is provided with a water equalizing groove (9) communicated with the first anoxic tank (2), a plurality of notches (1) are distributed on the water equalizing table (17) in a circumferential direction, the aerobic tank (10) is communicated with the water equalizing groove (9) and the first anoxic tank (2) through the notches (1), and the bottom of the notch (1) is higher than the bottom of the water equalizing groove (9).

2. The integrated aquaculture wastewater purification system of claim 1, wherein: A wastewater inlet pipe after solid-liquid separation treatment is communicated with the first anoxic tank (2), a plurality of water outlet grooves communicated with the second anoxic tank (8) are arranged on the upper portion of the side wall of the aerobic tank (10) away from the first anoxic tank (2), and a liquid discharge pipe is communicated with the second anoxic tank (8).

3. The integrated aquaculture wastewater purification system of claim 2, wherein: A plurality of water equalizing plates (7) are arranged on the second anoxic tank (8), the water equalizing plates (7) are provided with a plurality of holes, the holes of adjacent two water equalizing plates (7) are staggered, and the diameter of the hole of the water equalizing plate (7) gradually increases along the direction away from the aerobic tank (10).

4. The integrated aquaculture wastewater purification system of claim 1, wherein: A filter plate (5) is fixed on the notch (1).

5. The integrated aquaculture wastewater purification system of claim 4, wherein: A water inlet groove is arranged between the filter plate (5) and the inner side wall of the water equalizing table (17), a water inlet column (3) is communicated with the bottom of the water inlet groove, and the bottom of the water inlet column (3) is not higher than one-half of the depth of the aerobic tank (10).

6. The integrated aquaculture wastewater purification system of claim 1, wherein: A plurality of mounting rods (6) are fixed on the water equalizing table (17), a plurality of notches (4) are arranged on the mounting rods (6), a plurality of first hanging ropes are wound on the notches (4), and a combined fiber filler is hung on the first hanging rope in the aerobic tank (10).

7. The integrated aquaculture wastewater purification system of claim 6, wherein: A plurality of second hanging ropes are wound on the notches (4), and a carbon source is hung on the second hanging rope in the aerobic tank (10).

8. The integrated aquaculture wastewater purification system of claim 6, wherein: A sink (12) is arranged on the water equalizing table (17), and the end of the mounting rod (6) is provided with a limiting rod matched with the sink (12).

9. The integrated aquaculture wastewater purification system of claim 1, wherein: A plurality of annular pipes (16) are arranged on the bottom of the aerobic tank (10), the annular pipes (16) are connected through connecting pipes (14), a plurality of aeration discs (15) are communicated with the annular pipes (16) and the connecting pipes (14), and the annular pipes (16) are connected with a gas supply system through a pipe network.

10. The integrated aquaculture wastewater purification system of claim 9, wherein: The pipe network comprises an air inlet pipe (11) connected with the gas supply system and two air distribution pipes (13) communicated with the air inlet pipe (11), and the two air distribution pipes (13) are respectively and symmetrically communicated with the annular pipes (16).

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