Circulating treatment pond based on aquaculture wastewater

Abstract

The utility model provides a circulating treatment pond based on aquaculture wastewater, which comprises a first settling pond, a contact oxidation pond and a second settling pond, the water inlet end of the first settling pond is used for communicating with the drainage end of an aquaculture wastewater pond, a first sludge hopper is arranged in the first settling pond, the water inlet end of the contact oxidation pond communicates with the water outlet end of the first settling pond, and a second sludge hopper is arranged in the second settling pond. The contact oxidation pond is used for purifying breeding wastewater, a second sludge hopper is arranged in the second sedimentation pond, the water inlet end of the second sedimentation pond is communicated with the water outlet end of the contact oxidation pond, and the water outlet end of the second sedimentation pond is used for being communicated with the water inlet end of the breeding wastewater pond. The first sedimentation tank is used for primary sedimentation of the breeding wastewater, the contact oxidation tank is used for purifying the breeding wastewater subjected to primary sedimentation, and the second sedimentation tank is used for secondary sedimentation of the purified breeding wastewater, so that suspended solids in the treated breeding wastewater are effectively reduced; therefore, the treatment effect of the circulating treatment pond based on the aquaculture wastewater on the aquaculture wastewater can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a circulating treatment tank based on aquaculture wastewater. Background Art

[0002] With the rapid development of the aquaculture industry, the traditional aquaculture mode faces many challenges. Among them, in traditional aquaculture, in order to ensure water quality, a water storage pond with an area ratio of 1:1 to the aquaculture wastewater pond is often required for water replacement to ensure water quality, which will lead to problems such as water resource waste and low aquaculture efficiency.

[0003] For this reason, the patent number CN218811084U provides an aquaculture circulation system, including an aquaculture pond, a sedimentation pond, a biochemical pond and an aeration and disinfection pond. The aquaculture pond is connected to the sedimentation pond through the aquaculture pond drain outlet. The sedimentation pond guides water to the biochemical pond through a first protein separator. The biochemical pond is connected to the aeration and disinfection pond through the biochemical pond drain outlet. The aeration and disinfection pond guides water to the aquaculture pond through a disinfector. A waste discharge area, a sedimentation area and a separation area are provided in the sedimentation pond. A coral sand layer, a biochemical ball layer and a water passing area are provided in the biochemical pond. An aeration area and a disinfection area are provided in the aeration and disinfection pond.

[0004] Although the above patent can achieve the function of recycling water, there are still the following problems. It only performs one sedimentation treatment on the aquaculture wastewater, but the treatment effect of one sedimentation treatment is limited. There is still a part of the suspended matter in the aquaculture wastewater that will overflow into the subsequent treatment ponds with the water flow. That is to say, there are still suspended matters in the aquaculture wastewater after being treated by the aquaculture circulation system, resulting in poor treatment effect of the aquaculture circulation system. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a circulating treatment tank based on aquaculture wastewater with better treatment effect on suspended matter in aquaculture wastewater.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A circulating treatment tank based on aquaculture wastewater, comprising:

[0008] A first sedimentation pond, the water inlet end of the first sedimentation pond is used to communicate with the water discharge end of the aquaculture wastewater pond, and a first sludge hopper is arranged in the first sedimentation pond;

[0009] A contact oxidation pond, the water inlet end of the contact oxidation pond is communicated with the water outlet end of the first sedimentation pond, and the contact oxidation pond is used to purify aquaculture wastewater;

[0010] The secondary sedimentation tank is provided with a second sludge hopper therein. The water inlet end of the secondary sedimentation tank is communicated with the water outlet end of the contact oxidation tank, and the water outlet end of the secondary sedimentation tank is used to be communicated with the water inlet end of the aquaculture wastewater pond.

[0011] In one embodiment, a first overflow port is provided at the connection between the first sedimentation tank and the contact oxidation tank, and the water outlet end of the first sedimentation tank and the water inlet end of the contact oxidation tank are communicated through the first overflow port.

[0012] A second overflow port is provided at the connection between the contact oxidation tank and the secondary sedimentation tank, and the water outlet end of the contact oxidation tank and the water inlet end of the secondary sedimentation tank are communicated through the second overflow port.

[0013] In one embodiment, the circulating treatment tank for aquaculture wastewater further includes a first sludge discharging assembly and a second sludge discharging assembly. The sludge inlet end of the first sludge discharging assembly is communicated with the sludge discharging end of the first sedimentation tank, and the sludge inlet end of the second sludge discharging assembly is communicated with the sludge discharging end of the secondary sedimentation tank.

[0014] In one embodiment, the circulating treatment tank for aquaculture wastewater further includes a water inlet assembly and a water drainage assembly. The water outlet end of the water inlet assembly is communicated with the water inlet end of the first sedimentation tank, and the water inlet end of the water drainage assembly is communicated with the water outlet end of the secondary sedimentation tank.

[0015] In one embodiment, the first sludge discharging assembly includes a first sludge discharging pipe, a first sludge pump and a first sewage discharge valve.

[0016] The sludge inlet end of the first sludge discharging pipe is communicated with the sludge discharging end of the first sedimentation tank, the sludge inlet end of the first sludge pump is communicated with the sludge discharging end of the first sludge discharging pipe, and the first sewage discharge valve is arranged on the first sludge discharging pipe.

[0017] In one embodiment, the second sludge discharging assembly includes a second sludge discharging pipe, a second sludge pump and a second sewage discharge valve.

[0018] The sludge inlet end of the second sludge discharging pipe is communicated with the sludge discharging end of the secondary sedimentation tank, the sludge inlet end of the second sludge pump is communicated with the sludge discharging end of the second sludge discharging pipe, and the second sewage discharge valve is arranged on the second sludge discharging pipe.

[0019] In one embodiment, the water inlet assembly includes a water inlet pipe, a water inlet pump and a first water valve.

[0020] The water outlet end of the water inlet pipe is communicated with the water inlet end of the first sedimentation tank, the water inlet end of the water inlet pump is communicated with the drainage end of the aquaculture wastewater pond, the water drainage end of the water inlet pump is communicated with the water inlet end of the water inlet pipe, and the first water valve is arranged on the water inlet pipe.

[0021] In one embodiment, the drainage assembly includes a drainage pipe, a drainage pump, and a second water valve;

[0022] The water inlet end of the drainage pipe is communicated with the water outlet end of the second sedimentation tank, the water inlet end of the drainage pump is communicated with the drainage end of the drainage pipe, the water drainage end of the drainage pump is communicated with the water inlet end of the aquaculture wastewater pond, and the second water valve is arranged on the drainage pipe.

[0023] In one embodiment, a plurality of aeration discs are arranged in the biological contact oxidation tank.

[0024] In one embodiment, a plurality of biological filler ropes are further arranged in the biological contact oxidation tank.

[0025] Compared with the prior art, the utility model has at least the following advantages:

[0026] 1. By setting the water inlet end of the first sedimentation tank to communicate with the water drainage end of the aquaculture wastewater pond for primary sedimentation of the aquaculture wastewater, and arranging a biological contact oxidation tank to communicate with and receive the aquaculture wastewater after primary sedimentation in the first sedimentation tank, the biological contact oxidation tank can purify the aquaculture wastewater. Then, a second sedimentation tank is arranged to communicate with the aquaculture wastewater purified by the biological contact oxidation tank, and the second sedimentation tank is used for secondary sedimentation of the purified aquaculture wastewater, thereby effectively reducing the presence of suspended solids in the treated aquaculture wastewater. In this way, the treatment effect of the aquaculture wastewater by the circulating treatment tank based on aquaculture wastewater can be effectively improved.

[0027] 2. By arranging a first sludge hopper in the first sedimentation tank and a second sludge hopper in the second sedimentation tank, the sedimentation rate of suspended solids in the aquaculture wastewater in the first sedimentation tank and the second sedimentation tank can be effectively improved, thereby effectively enhancing the treatment effect of the first sedimentation tank and the second sedimentation tank on the suspended solids in the aquaculture wastewater. In this way, the treatment effect of the aquaculture wastewater by the circulating treatment tank based on aquaculture wastewater can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of a circulating treatment tank based on aquaculture wastewater in one embodiment;

[0030] Figure 2 For Figure 1Enlarged schematic diagram of location A of the circulating treatment pond for aquaculture wastewater as shown;

[0031] Figure 3 is Figure 1 Enlarged schematic diagram of location B of the circulating treatment pond for aquaculture wastewater as shown;

[0032] Figure 4 is Figure 1 Enlarged schematic diagram of location C of the circulating treatment pond for aquaculture wastewater as shown;

[0033] Figure 5 is Figure 1 Enlarged schematic diagram of location D of the circulating treatment pond for aquaculture wastewater as shown. Detailed implementation manners

[0034] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present utility model can be understood more thoroughly and comprehensively.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] Please refer to Figures 1 to 5 , in order to better understand the circulating treatment pond 10 for aquaculture wastewater of the present disclosure, the following further explanatory description is made on the circulating treatment pond 10 for aquaculture wastewater:

[0038] The circulating treatment tank 10 for aquaculture wastewater in one embodiment includes a first sedimentation tank 100, a contact oxidation tank 200 and a second sedimentation tank 300. The water inlet end of the first sedimentation tank 100 is used to communicate with the drainage end of the aquaculture wastewater pond. A first sludge hopper 110 is provided in the first sedimentation tank 100. The water inlet end of the contact oxidation tank 200 is communicated with the water outlet end of the first sedimentation tank 100. The contact oxidation tank 200 is used to purify the aquaculture wastewater. A second sludge hopper 310 is provided in the second sedimentation tank 300. The water inlet end of the second sedimentation tank 300 is communicated with the water outlet end of the contact oxidation tank 200. The water outlet end of the second sedimentation tank 300 is used to communicate with the water inlet end of the aquaculture wastewater pond.

[0039] In this embodiment, by setting the water inlet end of the first sedimentation tank 100 to communicate with the drainage end of the aquaculture wastewater pond, it is used for primary sedimentation of the aquaculture wastewater, and a contact oxidation tank 200 is provided to receive the aquaculture wastewater after primary sedimentation in the first sedimentation tank 100. The contact oxidation tank 200 can purify the aquaculture wastewater. Then, a second sedimentation tank 300 is provided to communicate with the aquaculture wastewater purified by the contact oxidation tank 200. The second sedimentation tank 300 is used for secondary sedimentation of the purified aquaculture wastewater, thereby effectively reducing the presence of suspended solids in the treated aquaculture wastewater. In this way, the treatment effect of the circulating treatment tank 10 for aquaculture wastewater on the aquaculture wastewater can be effectively improved.

[0040] It can be understood that by providing a first sludge hopper 110 in the first sedimentation tank 100 and a second sludge hopper 310 in the second sedimentation tank 300, the sedimentation rate of suspended solids in the aquaculture wastewater in the first sedimentation tank 100 and the second sedimentation tank 300 can be effectively improved, thereby effectively enhancing the treatment effect of the first sedimentation tank 100 and the second sedimentation tank 300 on the suspended solids in the aquaculture wastewater. In this way, the treatment effect of the circulating treatment tank 10 for aquaculture wastewater on the aquaculture wastewater can be effectively improved.

[0041] It should be noted that the contact oxidation tank 200 can effectively remove pollutants such as organic matter and ammonia nitrogen in the aquaculture wastewater and purify the water quality of the aquaculture wastewater. And disinfectants and flocculants are also added to the aquaculture wastewater in the second sedimentation tank 300. The disinfectant can further purify the water quality of the aquaculture wastewater, and the flocculant can flocculate the sediment in the aquaculture wastewater to facilitate sedimentation treatment.

[0042] It should be further noted that the present disclosure only protects the connection relationships of the components in the circulating treatment tank 10 for aquaculture wastewater. As for the components and manufacturing processes of the disinfectant and flocculant, etc., they belong to the prior art and are not within the protection scope of the present disclosure.

[0043] Such as Figure 1As shown, in one embodiment, a first overflow port 101 is provided at the connection between the first sedimentation tank 100 and the contact oxidation tank 200. The water outlet end of the first sedimentation tank 100 and the water inlet end of the contact oxidation tank 200 are connected through the first overflow port 101. A second overflow port 201 is provided at the connection between the contact oxidation tank 200 and the second sedimentation tank 300. The water outlet end of the contact oxidation tank 200 and the water inlet end of the second sedimentation tank 300 are connected through the second overflow port 201.

[0044] It can be understood that by providing the first overflow port 101 at the connection between the first sedimentation tank 100 and the contact oxidation tank 200, the aquaculture wastewater treated by the first sedimentation tank 100 can overflow through the first overflow port 101 into the contact oxidation tank 200 for purification of the aquaculture wastewater. And by providing the second overflow port 201 at the connection between the contact oxidation tank 200 and the second sedimentation tank 300, the aquaculture wastewater purified by the contact oxidation tank 200 can overflow into the second sedimentation tank 300, so as to perform secondary sedimentation treatment on the aquaculture wastewater. In this way, the presence of suspended solids in the aquaculture wastewater can be effectively reduced, and further the treatment effect of the aquaculture wastewater by the circulation treatment tank 10 based on aquaculture wastewater can be effectively improved.

[0045] As Figure 1 shown, in one embodiment, the circulation treatment tank 10 based on aquaculture wastewater further includes a first sludge discharge assembly 400 and a second sludge discharge assembly 500. The sludge inlet end of the first sludge discharge assembly 400 is connected to the sludge discharge end of the first sedimentation tank 100, and the sludge inlet end of the second sludge discharge assembly 500 is connected to the sludge discharge end of the second sedimentation tank 300.

[0046] It should be noted that after a period of aquaculture wastewater treatment, a large amount of suspended solids will accumulate in the first sludge hopper 110 and the second sludge hopper 310. Excessive accumulation of suspended solids will cause the aquaculture wastewater body to become further turbid, affecting the subsequent purification effect of the aquaculture wastewater.

[0047] It can be understood that by providing the first sludge discharge assembly 400 and the second sludge discharge assembly 500, the accumulation of suspended solids in the first sludge hopper 110 and the second sludge hopper 310 can be effectively alleviated, avoiding the influence of excessive accumulation of suspended solids on the sedimentation speed and sedimentation effect of the first sedimentation tank 100 and the second sedimentation tank 300. In this way, the

[0048] As Figure 1 shown, in one embodiment, the circulation treatment tank 10 based on aquaculture wastewater further includes a water inlet assembly 600 and a water discharge assembly 700. The water outlet end of the water inlet assembly 600 is connected to the water inlet end of the first sedimentation tank 100, and the water inlet end of the water discharge assembly 700 is connected to the water outlet end of the second sedimentation tank 300.

[0049] It can be understood that the water inlet assembly 600 can introduce the aquaculture wastewater to be treated into the first sedimentation tank 100, ensuring that the first sedimentation tank 100 can continuously and stably receive the aquaculture wastewater that needs to be treated. The drainage assembly 700 can timely and stably return the treated aquaculture wastewater to the aquaculture wastewater pond continuously, effectively ensuring the production continuity of the circulation treatment tank 10 based on the aquaculture wastewater.

[0050] As Figure 1 and Figure 2 shown, in one embodiment, the first sludge discharge assembly 400 includes a first sludge discharge pipe 410, a first sludge pump 420 and a first sewage discharge valve 430. The sludge inlet end of the first sludge discharge pipe 410 is communicated with the first sludge hopper 110. The sludge inlet end of the first sludge pump 420 is communicated with the sludge discharge end of the first sludge discharge pipe 410. The first sewage discharge valve 430 is arranged on the first sludge discharge pipe 410.

[0051] It can be understood that the first sludge discharge pipe 410, as a channel for sludge transmission, can direct the sludge in the first sludge hopper 110 to the first sludge pump 420. The first sludge pump 420 can pump out the sludge from the first sludge discharge pipe 410. The power function of the sludge pump can efficiently pump out and transport the sludge in the first sludge hopper 110, avoiding the long-term stay and accumulation of sludge in the water treatment tank, thus effectively improving the operation efficiency of the circulation treatment tank 10 based on the aquaculture wastewater. The first sewage discharge valve 430 can open or close the discharge of the first sludge discharge pipe 410, and can also control the sludge flow rate in the discharge pipe, making the sludge discharge process more flexible and controllable. The operator can adjust the opening degree of the sewage discharge valve according to actual needs, so as to control the sludge discharge amount and discharge speed, ensuring the stability and reliability of sludge treatment.

[0052] As Figure 1 and Figure 3 shown, in one embodiment, the second sludge discharge assembly 500 includes a second sludge discharge pipe 510, a second sludge pump 520 and a second sewage discharge valve 530. The sludge inlet end of the second sludge discharge pipe 510 is communicated with the sludge discharge end of the second sedimentation tank 300. The sludge inlet end of the second sludge pump 520 is communicated with the sludge discharge end of the second sludge discharge pipe 510. The second sewage discharge valve 530 is arranged on the second sludge discharge pipe 510.

[0053] It can be understood that the second sludge discharge pipe 510, as the channel for sludge transmission, can direct the sludge in the second sludge hopper 310 to the second sludge pump 520. The second sludge pump 520 can efficiently pump out the sludge in the second sludge hopper 310 and transport it to the outside, avoiding the long-term stay and accumulation of sludge in the water treatment pool, improving the efficiency of the second sludge hopper 310 in treating precipitation, and thus effectively improving the aquaculture water treatment efficiency of the circulation treatment pool 10. The second sewage valve 530 can open or close the discharge of the second sludge discharge pipe 510 and can control the sludge flow rate in the second sludge discharge pipe 510, making the sludge discharge process of the second sedimentation tank 300 more flexible and controllable, and thus effectively enhancing the flexibility of the circulation treatment pool 10.

[0054] As Figure 1 and Figure 4 shown, in one embodiment, the water inlet assembly 600 includes a water inlet pipe 610, a water inlet pump 620 and a first water valve 630. The water outlet end of the water inlet pipe 610 is communicated with the water inlet end of the first sedimentation tank 100. The water inlet end of the water inlet pump 620 is communicated with the drainage end of the aquaculture wastewater pond. The water outlet end of the water inlet pump 620 is communicated with the water inlet end of the water inlet pipe 610. The first water valve 630 is arranged on the water inlet pipe 610.

[0055] It can be understood that the water inlet pipe 610, as the channel for the flow of aquaculture wastewater, guides the wastewater from the wastewater pond to the first sedimentation tank 100, and its water outlet end is directly communicated with the water inlet end of the first sedimentation tank 100, ensuring the smooth transportation of the wastewater. The water inlet pump 620 can suck the aquaculture wastewater from the drainage end of the aquaculture wastewater pond through the generation of a pressure difference and discharge it to the water inlet pipe 610 after pressurization, so as to ensure that the aquaculture wastewater can smoothly and efficiently flow into the first sedimentation tank 100 for sedimentation treatment. The first water valve 630 is arranged on the water inlet pipe 610 to control the flow rate and flow direction of the wastewater. By adjusting the opening degree of the water valve, the amount of aquaculture wastewater flowing into the first sedimentation tank 100 can be controlled, enabling the circulation treatment pool 10 to adapt to different treatment requirements, and thus effectively improving the practicability of the circulation treatment pool 10.

[0056] As Figure 1 and Figure 5 shown, in one embodiment, the drainage assembly 700 includes a drainage pipe 710, a drainage pump 720 and a second water valve 730. The water inlet end of the drainage pipe 710 is communicated with the water outlet end of the second sedimentation tank 300. The water inlet end of the drainage pump 720 is communicated with the drainage end of the drainage pipe 710. The water outlet end of the drainage pump 720 is communicated with the water inlet end of the aquaculture wastewater pond. The second water valve 730 is arranged on the drainage pipe 710.

[0057] It is understandable that the drainage pipe 710 ensures the smooth flow of wastewater from the sedimentation tank to the wastewater pond. Its inlet end is connected to the outlet end of the second sedimentation tank 300 and can receive the water body after sedimentation treatment. The drainage pump 720 can pressurize the water body in the drainage pipe 710 and then transport it to the aquaculture wastewater pond. Even in the case of insufficient natural water flow or the need for rapid drainage, the effective transfer of aquaculture wastewater can still be achieved through the drainage pump 720. The second water valve 730 can adjust and control the water flow rate in the drainage pipe 710. By opening or closing the water valve, the discharge rate and discharge volume of aquaculture wastewater can be flexibly controlled, enabling the circulation treatment tank 10 to adapt to different treatment requirements, thereby effectively improving the flexibility of the circulation treatment tank 10.

[0058] As Figure 1 shown, in one embodiment, a plurality of aeration discs 210 are provided in the contact oxidation tank 200. It is understandable that by arranging the aeration discs 210 to aerate the aquaculture wastewater in the contact oxidation tank 200, the dissolved oxygen content and microbial activity in the aquaculture wastewater can be effectively increased, the oxidation rate can be improved, the growth and activity of aerobic microorganisms can be promoted, thereby enhancing the oxidation and decomposition process of pollutants such as organic matter and ammonia nitrogen in the aquaculture wastewater, effectively improving the purification effect of the aquaculture wastewater, and thus effectively improving the purification efficiency and quality of the aquaculture wastewater in the circulation treatment tank 10.

[0059] Furthermore, aeration can stir the water body, which helps the suspension and microorganisms to precipitate in the water, thereby maintaining the clarity of the water quality. At the same time, the stirring effect during the aeration process fully mixes the organic matter, ammonia nitrogen and other suspended substances in the aquaculture wastewater, increasing the contact opportunity between microorganisms and pollutants and further accelerating the degradation process.

[0060] As Figure 1 shown, in one embodiment, a plurality of biological filler ropes 220 are also provided in the contact oxidation tank 200. It should be noted that the microorganisms in the biological filler ropes 220 use the organic matter in the wastewater as a nutrient source for growth and metabolism. Through the metabolic action, the organic matter in the aquaculture wastewater can be converted into inorganic substances, achieving the removal of inorganic pollutants such as nitrogen and phosphorus in the aquaculture wastewater, thereby effectively purifying the aquaculture wastewater and improving the sewage treatment efficiency. Furthermore, the biological filler ropes 220 can also intercept and remove the suspended substances in the aquaculture wastewater, thereby effectively improving the treatment effect of the circulation treatment tank 10 for aquaculture wastewater based on aquaculture wastewater.

[0061] Compared with the prior art, the present utility model has at least the following advantages:

[0062] 1. By setting the water inlet end of the first sedimentation tank to be connected to the drainage end of the aquaculture wastewater pond, which is used for the primary sedimentation of aquaculture wastewater, and a contact oxidation tank is set to be connected to receive the aquaculture wastewater after the primary sedimentation in the first sedimentation tank. The contact oxidation tank can purify the aquaculture wastewater. Then, a second sedimentation tank is set to be connected to the aquaculture wastewater purified by the contact oxidation tank. The second sedimentation tank is used for the secondary sedimentation of the purified aquaculture wastewater, thus effectively reducing the presence of suspended solids in the treated aquaculture wastewater. In this way, the treatment effect of the aquaculture wastewater by the circulating treatment tank based on aquaculture wastewater can be effectively improved.

[0063] 2. By setting a first sludge hopper in the first sedimentation tank and a second sludge hopper in the second sedimentation tank, the sedimentation rate of suspended solids in the aquaculture wastewater by the first sedimentation tank and the second sedimentation tank can be effectively increased, thus effectively enhancing the treatment effect of the first sedimentation tank and the second sedimentation tank on the suspended solids in the aquaculture wastewater. In this way, the treatment effect of the aquaculture wastewater by the circulating treatment tank based on aquaculture wastewater can be effectively improved.

[0064] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A circulating treatment pool based on aquaculture wastewater, characterized in that: include: a first sedimentation tank, wherein the water inlet end of the first sedimentation tank is connected to the drainage end of the aquaculture wastewater pond, and a first sludge hopper is provided in the first sedimentation tank; A contact oxidation tank, wherein the water inlet of the contact oxidation tank is connected to the water outlet of the first sedimentation tank, and the contact oxidation tank is used to purify aquaculture wastewater; A second sedimentation tank is provided with a second sludge hopper, the water inlet of the second sedimentation tank is connected with the water outlet of the contact oxidation tank, and the water outlet of the second sedimentation tank is used to be connected with the water inlet of the aquaculture wastewater pond.

2. The circulating treatment pool based on aquaculture wastewater according to claim 1, characterized in that: A first overflow port is provided at the connection between the first sedimentation tank and the contact oxidation tank, and the water outlet of the first sedimentation tank and the water inlet of the contact oxidation tank are connected through the first overflow port; A second overflow port is provided at the connection between the contact oxidation tank and the second sedimentation tank, and the water outlet of the contact oxidation tank and the water inlet of the second sedimentation tank are connected through the second overflow port.

3. The circulating treatment pool based on aquaculture wastewater according to claim 1, characterized in that: The circulating treatment pool based on aquaculture wastewater also includes a first mud discharge component and a second mud discharge component. The mud inlet end of the first mud discharge component is connected to the mud discharge end of the first sedimentation tank, and the mud inlet end of the second mud discharge component is connected to the mud discharge end of the second sedimentation tank.

4. The circulating treatment pool based on aquaculture wastewater according to claim 1, characterized in that: The circulating treatment pool based on aquaculture wastewater also includes an inlet component and a outlet component. The outlet end of the inlet component is connected to the inlet end of the first sedimentation tank, and the inlet end of the outlet component is connected to the outlet end of the second sedimentation tank.

5. The circulating treatment pool based on aquaculture wastewater according to claim 3, characterized in that: The first sludge discharge assembly includes a first sludge discharge pipe, a first sludge pump and a first sewage valve; The mud inlet end of the first mud discharge pipe is connected to the mud discharge end of the first sedimentation tank, the mud inlet end of the first sludge pump is connected to the mud discharge end of the first mud discharge pipe, and the first sewage valve is arranged on the first mud discharge pipe.

6. The circulating treatment pool based on aquaculture wastewater according to claim 3, characterized in that: The second mud discharge assembly includes a second mud discharge pipe, a second mud pump and a second sewage valve; The mud inlet end of the second mud discharge pipe is communicated with the mud discharge end of the second sedimentation tank, the mud inlet end of the second sludge pump is communicated with the mud discharge end of the second mud discharge pipe, and the second sewage valve is arranged on the second mud discharge pipe.

7. The circulating treatment pool based on aquaculture wastewater according to claim 4, characterized in that: The water inlet assembly includes a water inlet pipeline, a water inlet pump and a first water valve; The outlet end of the water inlet pipe is connected to the water inlet end of the first sedimentation tank, the water inlet end of the water inlet pump is connected to the drainage end of the aquaculture wastewater pond, the drainage end of the water inlet pump is connected to the water inlet end of the water inlet pipe, and the first water valve is arranged on the water inlet pipe.

8. The circulating treatment pool based on aquaculture wastewater according to claim 4, characterized in that: The drainage assembly includes a drainage pipe, a drainage pump and a second water valve; The water inlet end of the drainage pipe is connected to the water outlet end of the second sedimentation tank, the water inlet end of the drainage pump is connected to the drainage end of the drainage pipe, the drainage end of the drainage pump is connected to the water inlet end of the aquaculture wastewater pond, and the second water valve is arranged on the drainage pipe.

9. The circulating treatment pool based on aquaculture wastewater according to claim 1, characterized in that: A plurality of aeration disks are arranged in the contact oxidation tank.

10. The circulating treatment pool based on aquaculture wastewater according to claim 1, characterized in that: A plurality of biological filler ropes are also arranged in the contact oxidation tank.

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