Integrated aquaculture tail water treatment system
By integrating the microfiltration unit, screw press, and dosing device into a container, the problems of large footprint and high cost of existing aquaculture wastewater treatment systems are solved, achieving low-cost and efficient wastewater treatment and reducing damage to land resources and water pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HISHING SMART EQUIP CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-05-12
AI Technical Summary
Existing aquaculture wastewater treatment systems occupy large areas, are costly, and are highly destructive to land resources. They are also ineffective in treating high concentrations of harmful substances such as ammonia nitrogen and nitrite, leading to water pollution and ecological degradation.
The microfiltration unit, screw press, and dosing device are integrated into a container to form a modular, integrated aquaculture wastewater treatment system. The container is equipped with an aquaculture wastewater inlet pipe, a clean water outlet pipe, a backwash outlet pipe, and a dosing pipeline to achieve solid-liquid separation and flocculation of pollutants, reducing land occupation and civil construction.
It achieves wastewater treatment with small footprint, convenient transportation, and low cost. The solid sludge cake has low moisture content and low operating cost, with a treatment cost of less than 0.58 yuan per ton of water, reducing damage to land resources and water pollution.
Smart Images
Figure CN224226827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to an integrated aquaculture wastewater treatment system. Background Technology
[0002] The rapid development of aquaculture has generated a large amount of aquaculture wastewater, and the problem of wastewater discharge is becoming increasingly prominent. This wastewater contains high concentrations of harmful substances such as ammonia nitrogen, nitrite, and sulfides, which seriously pollute the surrounding water environment, leading to eutrophication and water quality deterioration, and severely affecting the ecological environment and the survival of aquatic organisms.
[0003] The "three ponds and two dams" system is a common type of aquaculture wastewater treatment system, which requires an investment of hundreds of thousands of yuan per hectare, increases daily operating costs by 10-15%, and has a high rate of facility idling (up to 30% in some areas).
[0004] Oxidation ponds are another common type of aquaculture wastewater treatment system, but they require a large land area to construct. With land resources becoming increasingly scarce, the feasibility of this method is limited.
[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention
[0006] In response to the problems mentioned in the background art, this utility model proposes an integrated aquaculture wastewater treatment system that integrates wastewater treatment equipment into a container, which has a small footprint and low cost.
[0007] To achieve the above-mentioned objectives, the present invention employs the following technical solution:
[0008] In some embodiments of this application, an integrated aquaculture wastewater treatment system is provided. The container is equipped with a microfilter, a screw press, and a dosing device. The microfilter includes an aquaculture wastewater inlet pipe, a clean water outlet pipe, and a backwash outlet pipe. The clean water outlet pipe is connected to an ecological pond, the backwash outlet pipe is connected to the pre-treatment tank of the screw press, the drain outlet of the screw press is connected to the ecological pond through a pipeline, and the dosing device is connected to the pre-treatment tank through a dosing pipeline.
[0009] Beneficial effects: The integrated aquaculture wastewater treatment system of this application integrates a microfiltration machine, a screw press, and a dosing device into a container. The modular design occupies a small area, is easy to transport, requires no further civil construction, and can be moved according to actual conditions without damaging national land resources.
[0010] The integrated aquaculture wastewater treatment system of this application collects solids (mud cake) with a moisture content of <85%, which is far lower than the moisture content of solid-liquid separation in traditional aquaculture wastewater treatment.
[0011] The integrated aquaculture wastewater treatment system proposed in this application has low operating costs, with a treatment cost of less than 0.58 yuan per ton of water.
[0012] In some embodiments of this application, the microfilter and the screw press are arranged sequentially along the length of the container.
[0013] In some embodiments of this application, the screw press and the dosing device are arranged sequentially along the width direction of the container.
[0014] In some embodiments of this application, the dosing device adds a mixed solution of PAC and PAM to the pretreatment tank.
[0015] In some embodiments of this application, the dosing device is activated when the microfilter supplies backwash water to the pre-filter tank.
[0016] In some embodiments of this application, the discharge end of the screw press is close to the end side of the container.
[0017] In some embodiments of this application, the microfilter further includes an overflow pipe.
[0018] In some embodiments of this application, a water volume detection instrument is also included, which is configured to detect the amount of wastewater flowing into the microfilter from the aquaculture wastewater inlet pipe.
[0019] In some embodiments of this application, the container is a 20-foot container.
[0020] In some embodiments of this application, the container is equipped with a photovoltaic device.
[0021] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description
[0022] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a top view of an integrated aquaculture wastewater treatment system according to some embodiments;
[0024] Figure 2 A front view of an integrated aquaculture wastewater treatment system according to some embodiments;
[0025] Figure 3 This is a schematic diagram of an integrated aquaculture wastewater treatment system according to some embodiments.
[0026] Figure label:
[0027] 100. Container; 110. Installation space;
[0028] 200. Microfiltration unit; 210. Aquaculture wastewater inlet pipe; 220. Clean water outlet pipe; 230. Backwash outlet pipe; 240. Overflow pipe;
[0029] 300. Screw press; 310. Pre-treatment water tank; 320. Main body; 330. Drainage pipeline;
[0030] 400. Dosing device; 410. Dosing pipeline;
[0031] 500. Ecological pond;
[0032] X, the length direction of the container;
[0033] Y represents the width direction of the container. Detailed Implementation
[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0035] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0039] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0040] In some embodiments of this application, an integrated aquaculture wastewater treatment system is provided. Figure 1 This is a top view of an integrated aquaculture wastewater treatment system. Figure 2 This is a front view of an integrated aquaculture wastewater treatment system. Figure 3 This is a schematic diagram of an integrated aquaculture wastewater treatment system. The integrated aquaculture wastewater treatment system is configured to purify aquaculture wastewater to achieve its recycling, providing a recirculating aquaculture system for aquaculture.
[0041] The integrated aquaculture wastewater treatment system includes a container 100, the interior of which forms an installation space 110.
[0042] The integrated aquaculture wastewater treatment system also includes a microfilter 200, which is installed in the internal installation space 110 of the container 100. The microfilter 200 is configured to purify the aquaculture wastewater. The microfilter 200 is existing equipment, and its structure will not be described in detail in this application.
[0043] The microfilter 200 includes an aquaculture wastewater inlet pipe 210, through which aquaculture wastewater flows into the microfilter 200, and the microfilter 200 purifies the incoming aquaculture wastewater.
[0044] The microfilter 200 includes a clean water outlet pipe 220, which is connected to the ecological pond 500. The aquaculture wastewater is filtered by the microfilter 200 to obtain clean water, which flows into the ecological pond 500 through the clean water outlet pipe 220 for further treatment. The ecological pond 500 is mainly used to remove total nitrogen, total phosphorus and other substances from the water.
[0045] The microfilter 200 includes a backwash outlet pipe 230. The microfilter 200 has a backwashing function. After the microfilter 200 has been working for a period of time, the backwashing function is activated to backwash the internal filter screen of the microfilter 200 to ensure the filtration capacity of the microfilter 200.
[0046] The integrated aquaculture wastewater treatment system also includes a screw press 300, which is installed in the internal installation space 110 of the container 100. The screw press 300 is existing equipment, and its structure will not be described in detail here. The backwash outlet pipe 230 is connected to the pre-treatment tank 310 of the screw press 300, and the drain outlet of the screw press 300 is connected to the ecological pond 500 via a drain pipe 330.
[0047] When the microfilter 200 is backwashed, the wastewater containing high concentrations of pollutants discharged from the backwash flows into the pre-treatment water tank 310 of the screw press 300 through the backwash outlet pipe 230.
[0048] The integrated aquaculture wastewater treatment system also includes a dosing device 400, which is installed in the internal installation space 110 of the container 100. The dosing device 400 is connected to the pre-treatment tank 310 via a dosing pipeline 410.
[0049] The dosing device 400 adds chemicals to the pre-treatment tank 310 to flocculate the impurities in the water. The flocculated impurities flow into the main body 320 of the screw press 300, where the screw press 300 squeezes out the water from the impurities, producing a mud cake. The water squeezed out of the impurities by the screw press 300 then flows into the ecological pond 500 through the drainage pipe 330. The dosing device 400 is existing equipment, and its structure will not be described in detail in this application.
[0050] The integrated aquaculture wastewater treatment system of this application integrates a microfilter 200, a screw press 300, and a dosing device 400 into a container 100. The modular design has a small footprint, is easy to transport, requires no further civil construction, and can be moved according to actual conditions without damaging national land resources.
[0051] The integrated aquaculture wastewater treatment system of this application collects solids (mud cake) with a moisture content of <85%, which is far lower than the moisture content of solid-liquid separation in traditional aquaculture wastewater treatment.
[0052] The integrated aquaculture wastewater treatment system proposed in this application has low operating costs, with a treatment cost of less than 0.58 yuan per ton of water.
[0053] In some embodiments of this application, the microfilter 200 and the screw press 300 are arranged sequentially along the length direction X of the container 100, with a compact layout, which facilitates the connection of pipelines between the microfilter 200 and the screw press 300.
[0054] In some embodiments of this application, the screw press 300 and the dosing device 400 are arranged sequentially along the width direction Y of the container 100, which is compact and facilitates the pipeline connection between the screw press 300 and the dosing device 400.
[0055] In some embodiments of this application, the discharge end of the screw press 300 is close to the end side of the container 100. Opening the end side door of the container 100 facilitates the cleaning of the mud cake generated by the screw press 300.
[0056] In some embodiments of this application, the dosing device 400 adds a mixed solution of PAC and PAM to the pre-water tank 310 for flocculation of sludge and to improve the flocculation effect.
[0057] In some embodiments of this application, the dosing device 400 is activated when backwash water is supplied to the pre-water tank 310 from the microfilter 200.
[0058] In other words, during the backwashing of the microfilter 200, the wastewater containing high concentrations of pollutants discharged from the backwash flows into the pre-treatment tank 310 of the screw press 300 through the backwash outlet pipe 230. At the same time, the dosing device 400 adds a mixed solution of PAC and PAM to the pre-treatment tank 310 to flocculate the pollutants in a timely manner and improve the flocculation effect.
[0059] In some embodiments of this application, the microfilter 200 also includes an overflow pipe 240. During backwashing, if a malfunction occurs, there is a risk of overflow in the microfilter 200; in this case, the water can be promptly discharged through the overflow pipe 240.
[0060] In some embodiments of this application, the aquaculture wastewater treatment system further includes a water volume detection instrument configured to detect the amount of wastewater flowing into the microfilter 200 from the aquaculture wastewater inlet pipe 210.
[0061] In other words, by detecting the amount of wastewater flowing into the microfilter 200, the treatment system issues an alert (sound, flashing light, text, etc.) to remind the user to clean the sludge cake in time.
[0062] In some embodiments of this application, container 100 is a 20-foot container, which meets the space requirements for the integrated installation of various components, is of moderate size, and is easy to transport.
[0063] In some embodiments of this application, a photovoltaic device is installed on the container 100, for example, on the outer wall of the container 100. The photovoltaic device provides power to the internal components, meeting 60-70% of the equipment's power needs.
[0064] The workflow of the integrated aquaculture wastewater treatment system in this application is as follows:
[0065] The aquaculture wastewater flows into the microfilter 200 via a water pump and aquaculture wastewater inlet pipe 210.
[0066] The microfilter 200 filters the aquaculture wastewater, and the filtered water flows into the ecological pond 500 through the clean water outlet pipe 220 for further treatment, mainly to remove total nitrogen, total phosphorus and other substances.
[0067] After the microfilter 200 has been working for a period of time, the backwashing function is turned on. The wastewater containing high concentrations of pollutants discharged from the backwash flows into the pre-treatment water tank 310 of the screw press 300 through the backwash outlet pipe 230.
[0068] At the same time, the dosing device 400 is started, and the dosing device 400 adds a mixed solution of PAC and PAM into the pre-water tank 310 to cause the sludge to flocculate.
[0069] After flocculation, the waste flows into the main body 320 of the screw press 300, squeezes out the water from the waste, discharges the mud cake, and the squeezed water flows into the ecological pond 500 through the drainage pipe 330.
[0070] The water volume detection instrument monitors the amount of wastewater flowing into the microfilter 200 from the aquaculture wastewater inlet pipe 210 in real time. By detecting the amount of wastewater flowing into the microfilter 200, the treatment system issues an alarm (sound, flashing light, text, etc.) to remind the user to clean the mud cake in time.
[0071] This completes the solid-liquid separation process of the tailwater.
[0072] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0073] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. An integrated aquaculture wastewater treatment system, characterized in that, Including: Containers, with internal installation space; A microfilter is installed in the installation space. The microfilter includes an aquaculture wastewater inlet pipe, a clean water outlet pipe, and a backwash outlet pipe. The clean water outlet pipe is connected to the ecological pond. The screw press is installed in the installation space. The backwash outlet pipe is connected to the pre-treatment water tank of the screw press, and the drain outlet of the screw press is connected to the ecological pond through a pipeline. A dosing device is installed within the installation space, and the dosing device is connected to the pre-treatment water tank via a dosing pipeline.
2. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The microfilter and the screw press are arranged sequentially along the length of the container.
3. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The screw press and the dosing device are arranged sequentially along the width of the container.
4. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The dosing device adds a mixed solution of PAC and PAM to the pretreatment tank.
5. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The dosing device is activated when the microfilter supplies backwash water to the pre-treatment tank.
6. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The discharge end of the screw press is close to the end side of the container.
7. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The microfilter also includes an overflow pipe.
8. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, It also includes a water volume detection instrument, which is configured to detect the amount of wastewater flowing into the microfilter from the aquaculture wastewater inlet pipe.
9. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The container is a 20-foot container.
10. The integrated aquaculture wastewater treatment system according to claim 1, characterized in that, The container is equipped with a photovoltaic device.