Integrated in-situ protein separation biological filter bed

Abstract

The invention provides an integrated in-situ protein separation biological filter bed which comprises a filter bed body, a foam discharging assembly and an oxygenation assembly, the filter bed body is provided with a containing space, projection is conducted on a vertical plane, the boundary of the containing space is in a kidney shape, a first arc section of the kidney shape is located at the top of the containing space, and a second arc section of the kidney shape is located at the bottom of the containing space; the oxygenation assembly corresponds to the second arc section, the foam discharging assembly corresponds to the first arc section, bubbles generated by the oxygenation assembly can enter the containing space and float upwards in the containing space to generate foam, and the foam discharging assembly can collect the generated foam and discharge the generated foam into the target space. According to the invention, oxygenation, biological filtration and protein separation functions are organically combined, synergistic interaction is realized, design of high integration and in-situ treatment is realized, water treatment is directly carried out in the culture pond without water pump extraction and mechanical filtration, energy consumption and occupied area are reduced, maintenance and management of the system are simplified, and efficiency and effect of water treatment are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of aquaculture water treatment, and in particular relates to an integrated in-situ protein separation biological filter bed. Background Art

[0002] Aquaculture is an important part of the global food supply chain, and the increasing demand for high-quality aquatic products has led to the rapid development of aquaculture. However, the increase in the density of aquaculture has brought challenges to water quality management, among which the accumulation of ammonia nitrogen, organic matter, and suspended particles (such as feces and residual feed) are the main problems. These accumulations will lead to deterioration of water quality, increase the risk of disease in farmed fish, and ultimately affect production and quality.

[0003] In order to maintain good water quality, existing aquaculture water treatment technologies usually include the following equipment:

[0004] Protein skimmer: A large number of bubbles are generated through aeration equipment, and the surface of the bubbles is used to absorb suspended granular dirt, grease and some macromolecular organic matter (such as protein and fat) in the water, separating them from the water. It usually needs to operate independently, occupying a certain amount of space and energy, and requires a large amount of electricity to maintain the generation of bubbles and the promotion of water flow. It is mainly used in seawater environments and also in freshwater aquaculture systems.

[0005] Biofilter: Biofilter converts harmful substances such as ammonia nitrogen and nitrite in water into harmless substances such as nitrate or nitrogen through the action of microorganisms (such as nitrifying bacteria and denitrifying bacteria). Biofilter systems are usually designed as independent filtration units, which require a long water contact time, a large surface area and sufficient oxygen supply, as well as complex piping and water flow control systems.

[0006] Oxygenation equipment: Oxygenation equipment ensures that farmed fish get enough oxygen to maintain healthy growth by increasing the dissolved oxygen content in the water. Common oxygenation methods include (air / pure oxygen) aeration and liquid oxygen dissolution.

[0007] Although the above devices have played their respective roles in improving water quality, the existing technologies have the following major disadvantages:

[0008] Equipment is dispersed and energy consumption is high: protein skimmers, biofilters and aeration equipment are usually dispersed and operated independently. Each device requires an independent power source and control system, resulting in high energy consumption. In addition, the dispersed equipment layout requires more pipeline connections, which increases the complexity of the system and maintenance costs.

[0009] Large floor space: Independent protein skimmers, biofilters and aeration equipment take up a lot of space, which is particularly uneconomical for small and medium-sized aquaculture farms. The space occupied also limits the flexibility of farm layout. Traditional protein skimmers and filter beds are large in size and high in cost, and are not suitable for small home ornamental fish farming tanks.

[0010] Complex maintenance: Due to the large variety of equipment and complex connections, the maintenance and management of the overall system has become more cumbersome. The failure of each device may affect the operation of the entire water treatment system, increasing the difficulty and cost of operation.

[0011] Low efficiency: Since each device operates separately, the synergistic effect between systems is difficult to fully play. For example, the water flow switching between the protein skimmer and the biological filter bed may lead to reduced treatment efficiency. In addition, the separate aeration equipment cannot effectively and fully dissolve oxygen into the aquaculture water, resulting in a huge waste of energy.

[0012] The present invention is proposed to at least partially solve the aforementioned technical problems. Summary of the invention

[0013] Therefore, the present invention provides an integrated in-situ protein separation biofilter bed, which can overcome the technical problems of dispersed equipment, high energy consumption, large floor space, complex maintenance and low efficiency in the related art.

[0014] In order to solve the above problems, the present invention provides an integrated in-situ protein separation biological filter bed, comprising a filter bed body, a foam discharge component and an oxygenation component, wherein the filter bed body has a accommodating space, the accommodating space is used to accommodate biological filter material, and when projected on a vertical plane, the boundary of the accommodating space is in an oval shape, and the first arc segment of the oval shape is at the top of the accommodating space, and the second arc segment is at the bottom of the accommodating space, the oxygenation component is arranged corresponding to the second arc segment, and the foam discharge component is arranged corresponding to the first arc segment, the bubbles generated by the oxygenation component can enter the accommodating space and float up in the accommodating space to generate foam, and the foam discharge component can collect the generated foam and discharge it into a target space.

[0015] In some embodiments, the oxygenation assembly includes an aeration pipe and a bubble diffuser connected to an outlet of the aeration pipe, and the bubble diffuser is located in a connection area between the second arc segment and the vertical segment of the oval shape and in the accommodating space.

[0016] In some embodiments, the oxygenation assembly includes at least two groups, and the bubble diffusers in each group of the oxygenation assembly generate bubbles with different diameters.

[0017] In some embodiments, the foam discharge component includes a foam collection hood sealed to the outer wall of the first arc segment, a discharge outlet is formed on the top of the foam collection hood, a foam discharge pipe is detachably connected to the discharge outlet, and the outlet of the foam discharge pipe is placed in the target space.

[0018] In some embodiments, the foam collection cover is in an inverted cone shape, and the large mouth of the inverted cone is connected to the first arc segment; or, the foam collection cover is in an hourglass shape, one end face of the hourglass shape is connected to the first arc segment, and the discharge port is constructed on the other end face.

[0019] In some embodiments, the first arc segment has a first through hole that passes through the accommodating space, and the second arc segment has a second through hole that passes through the accommodating space, and the aperture of the first through hole is larger than the aperture of the second through hole.

[0020] In some embodiments, the integrated in-situ protein separation biofilter bed also includes a water pumping assembly, which is arranged corresponding to the second arc segment, and the water outlet direction of the water pump of the water pumping assembly is toward one side of the oxygenation assembly and parallel to the arc top tangent of the second arc segment.

[0021] In some embodiments, the integrated in-situ protein separation biological filter bed also includes a base, which is supported on the bottom of the filter bed body and forms a water flow channel between the second arc segment and the base, and the water pump is located in the water flow channel.

[0022] In some embodiments, the filter bed body is made of a light-shielding material, or a light-shielding layer is provided on the outer surface of the filter bed body.

[0023] In some embodiments, the foam discharge assembly has an adjustable foam holding volume.

[0024] The integrated in-situ protein separation biofilter provided by the present invention has the following beneficial effects:

[0025] The bubbles generated by the oxygenation component are introduced into the accommodating space, so as to achieve the purpose of oxygenation of the water body in the accommodating space, thereby increasing the dissolved oxygen content of the water body to be filtered, ensuring that farmed fish obtain sufficient oxygen to maintain healthy growth while ensuring that microorganisms obtain sufficient oxygen to maintain their biodegradation function; during the floating process of the generated bubbles, the surface of the bubbles adsorbs granular dirt, grease and some macromolecular organic matter (such as protein and fat) suspended in the water to achieve the purpose of protein separation, and the foam generated in the top area of ​​the filter bed body by the bubble flotation principle is separated and discharged under the action of the foam discharge component, which can solve the problem of low separation effect of traditional foam diffusion protein separators in freshwater aquaculture water treatment due to small bubbles and poor foam generation; the floating of bubbles is used to generate a driving flow on the water body and biological filter materials, Under the guidance of the oval-shaped filter bed body, the biological filter material is dispersed more evenly in the accommodating space, thereby enhancing water circulation (that is, the oval-shaped filter bed body is conducive to enhancing the water circulation effect and the uniform dispersion effect of the biological filter material), and can ensure the efficient degradation function of microorganisms; the biological filter bed of the present invention integrates the oxygenation, biological filtration and protein separation functions in one device, organically combines the oxygenation, biological filtration and protein separation functions, achieves synergistic efficiency, and achieves a high degree of integration. The in-situ treatment design does not require water pump extraction and mechanical filtration, and water treatment is directly carried out in the breeding pond. This in-situ, integrated design not only reduces energy consumption and floor space, but also simplifies system maintenance and management, significantly improves the efficiency and effect of water treatment, and is particularly suitable for small and medium-sized aquaculture farms and household ornamental fish farming, thereby improving the economic benefits and sustainability of aquaculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] Figure 1 1 is a front view of an integrated in-situ protein separation biofilter bed in an embodiment of the present invention (a cross-section is performed in the figure to show the biofilter material inside the biofilter bed);

[0028] Figure 2 yes Figure 1 Back view of ;

[0029] Figure 3 It is a three-dimensional schematic diagram of an integrated in-situ protein separation biological filter bed in an embodiment of the present invention at one viewing angle;

[0030] Figure 4It is a three-dimensional schematic diagram of the integrated in-situ protein separation biofilter bed in an embodiment of the present invention from another viewing angle.

[0031] The following are the descriptions of the reference numerals:

[0032] 1. Filter bed body; 11. Biological filter material; 12. First through hole; 13. Second through hole; 21. Aeration pipe; 22. Bubble diffuser; 31. Foam collection cover; 32. Foam discharge pipe; 41. Water pump; 42. Water pump power supply; 5. Base. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90° or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] See also Figures 1 to 4 As shown, according to an embodiment of the present invention, an integrated in-situ protein separation biological filter bed is provided, comprising a filter bed body 1, a foam discharge component (not labeled in the figure) and an oxygenation component (not labeled in the figure), wherein the filter bed body 1 has a containing space (not labeled in the figure), and the containing space is used to contain a biological filter material 11. In a specific embodiment, the biological filter material 11 is a K1 biological filter material (φ=10mm) or a K0.75 biological filter material (φ=7.5mm). When projected on a vertical plane, the boundary of the containing space is an oval shape and the first arc segment of the oval shape is at the top of the containing space (also That is, the top of the filter bed body 1), the second arc segment is at the bottom of the accommodating space (that is, the bottom of the filter bed body 1), the oxygenation component is corresponding to the second arc segment, and the foam discharge component is corresponding to the first arc segment. The bubbles (specifically, air bubbles) generated by the oxygenation component can enter the accommodating space and float up in the accommodating space to generate foam. The foam discharge component can collect the generated foam and discharge it into the target space. The aforementioned target space, such as a collection tank or other target container structure, is convenient for regular cleaning. It can be understood that the biological filter material 11 can provide a surface area for microorganisms to attach and grow. The aforementioned oval shape is specifically based on Figure 1 The figure is shown for reference, which includes the aforementioned first arc segment and the second arc segment, and two parallel vertical segments are connected between the first arc segment and the second arc segment. In a specific embodiment, the aforementioned first arc segment and the second arc segment are semicircular arc segments, thereby forming a structure similar to a circular runway. It can be understood that in order to ensure the circulation exchange of the water body and the separation and discharge of the generated foam, the aforementioned first arc segment and the second arc segment are both constructed with through holes that penetrate the inside and outside of the aforementioned accommodating space. Specifically, the first arc segment has a first through hole 12 that penetrates the inside and outside of the accommodating space, and the second arc segment has a first through hole 12 that penetrates the inside and outside of the accommodating space. The segment is provided with a second through hole 13 that passes through the inside and outside of the accommodating space. The aperture of the first through hole 12 is larger than that of the second through hole 13, so that the first through hole 12 with a larger aperture can be used to efficiently separate and discharge the generated foam, and the second through hole 13 with a smaller aperture can be used to filter large particle impurities in the water entering the accommodating space to prevent the biological filter material 11 from entering the accommodating space and reducing the degradation effect. In a specific embodiment, the aperture of each first through hole 12 is 3 mm and the hole spacing is 1 mm, and the aperture of each second through hole 13 is 2 mm and the hole spacing is 1 mm.

[0038] In this technical solution, the bubbles generated by the oxygenation component are introduced into the accommodating space, so as to achieve the purpose of oxygenating the water body in the accommodating space, thereby increasing the dissolved oxygen content of the water body to be filtered, ensuring that farmed fish obtain sufficient oxygen to maintain healthy growth while ensuring that microorganisms obtain sufficient oxygen to maintain their biodegradation function; the generated bubbles adsorb particulate dirt, grease and some macromolecular organic matter (such as protein and fat) suspended in the water on the surface of the bubbles during the floating process, thereby achieving the purpose of protein separation, and the foam generated in the top area of ​​the filter bed 1 using the bubble flotation principle is separated and discharged under the action of the foam discharge component, which can solve the problem of low separation effect of traditional foam diffusion protein separators in freshwater aquaculture water treatment due to small bubbles and poor foam generation; the floating of bubbles is used to generate a driving flow for the water body and the biological filter material 11. Under the guidance of the oval-shaped filter bed body 1, the biological filter material 11 is more evenly dispersed in the accommodating space, thereby enhancing water circulation (that is, the oval-shaped filter bed body 1 is conducive to enhancing the water circulation effect and the uniform dispersion effect of the biological filter material 11), and can ensure the efficient degradation function of microorganisms; the biological filter bed of the present invention integrates the functions of oxygenation, biological filtration and protein separation in one device, organically combines the functions of oxygenation, biological filtration and protein separation, realizes synergistic efficiency, and realizes high integration. The in-situ treatment design does not require water pump extraction and mechanical filtration, and water treatment is directly carried out in the breeding pond. The in-situ, integrated design not only reduces energy consumption and floor space, but also simplifies the maintenance and management of the system, significantly improves the efficiency and effect of water treatment, and is particularly suitable for small and medium-sized aquaculture farms and household ornamental fish farming, thereby improving the economic benefits and sustainability of aquaculture.

[0039] It should be noted that, when the biological filter bed of the present invention is used, it can be directly placed in the water body of the aquaculture pond waiting to be filtered, so as to achieve the purpose of in-situ protein separation.

[0040] It is understandable that uneven dispersion and poor activity of the biofilter material 11 will lead to: (1) reduced utilization of the active surface area. The key function of the biofilter material 11 is to provide surface area for nitrifying bacteria (such as Nitrosomonas and Nitrobacter) to attach and reproduce. If the biofilter material 11 is unevenly distributed, the biofilter material 11 in some areas will not be fully exposed to the water flow, thereby wasting the treatment capacity of the filter bed; (2) insufficient nitrification reaction. In areas where the biofilter material 11 is insufficiently active or unevenly dispersed, or even piled up, dead zones will be formed. These dead zones may have anoxic or even anaerobic environments, leading to excessive reproduction of heterotrophic bacteria or anaerobic reactions, thereby causing ammonia nitrogen (NH 3 -N) and nitrite (NO 2 - ) accumulate and may release harmful substances (such as hydrogen sulfide).

[0041] In some embodiments, the oxygenation assembly includes an aeration pipe 21 and a bubble diffuser 22 connected to the outlet of the aeration pipe 21, wherein the bubble diffuser 22 is located in the connection area between the second arc segment and the vertical segment of the oval shape (e.g. Figure 1 The bubble diffuser 22 is specifically an air stone, and the oxygenation assembly specifically includes an external oxygen pump (not shown in the figure), and the oxygen outlet of the oxygen pump is connected to the inlet of the aeration pipe 21.

[0042] In this technical solution, the bubble diffuser 22 is placed in the connection area between the second arc segment and the vertical segment connected to one end to achieve unilateral aeration. The unilateral aeration method can further enhance water circulation and oxygen supply, ensuring efficient biological filtration.

[0043] In some embodiments, the oxygenation assembly includes at least two groups, and the bubble diffusers 22 in each group of the oxygenation assembly generate bubbles with different diameters, thereby realizing multiple microbubble technology.

[0044] In this technical solution, the bubbles with larger diameters among the bubbles with different diameters promote the water body and the biological filter material 11 to enhance the circulation and thus improve the biological filtration effect, while the bubbles with smaller diameters can increase the amount of oxygen dissolved in the water body and thus improve the oxygenation effect of the water body.

[0045] In some embodiments, the foam discharge component includes a foam collecting hood 31 that is sealed and connected to the outer wall of the first arc segment (for example, by welding, gluing, etc.), and a discharge port (not marked in the figure) is formed on the top of the foam collecting hood 31, and a foam discharge pipe 32 is detachably connected to the discharge port, and the outlet of the foam discharge pipe 32 is placed in the target space. In a specific embodiment, the flow diameter of the foam discharge pipe 32 is φ=4-6mm. In a preferred embodiment, the height of the aforementioned foam discharge pipe 32 can be adjusted up and down to adapt to the height of the water surface and adjust the effect of protein separation.

[0046] In a specific embodiment, the foam collecting cover 31 is in the shape of an inverted cone, and the large mouth of the inverted cone is connected to the first arc segment. In this way, the tapered structure of the inverted cone can be used to achieve rapid and efficient separation of the generated foam and further discharge it.

[0047] Alternatively, in another specific embodiment, the foam collection cover 31 is in the shape of an hourglass, that is, a structure in which the tops of an inverted cone and a positive cone (i.e., a small diameter) are connected, one end face of the hourglass is connected to the first arc segment, and the discharge port is constructed on the other end face, so that the aforementioned hourglass shape can be used to form a Venturi effect, further improving the foam separation efficiency. Specifically, the foam flow rate will increase at the small flow aperture of the hourglass shape, that is, the Venturi effect, and the increased flow rate will allow more suspended particles and large molecular organic matter to be pushed to the water surface, thereby improving the separation efficiency.

[0048] In some embodiments, the integrated in-situ protein separation biofilter bed further comprises a water pump assembly (not labeled in the figure), the water pump assembly is arranged corresponding to the second arc segment, the water outlet direction of the water pump 41 of the water pump assembly is toward one side of the oxygenation assembly and is parallel to the arc top tangent of the second arc segment, and the arc top tangent also passes through the arc top of the second arc segment (see Figure 1 The straight line tangent to the second arc segment in the middle of the arc bottom) is shown in the direction, that is, the arc bottom. Figure 1 shown.

[0049] In this technical solution, the pump assembly drives the movement of the biological filter material 11 while pumping in untreated water, and promotes the discharge of some water treated by the filter bed 1, thereby achieving continuous water exchange. The water pump 41 can specifically be a low-power, low-flow water pump. It can be understood that the water pump 41 has a corresponding water pump power supply 42, which is electrically connected to the water pump 41 through a cable.

[0050] In some embodiments, the integrated in-situ protein separation biological filter bed further comprises a base 5, the base 5 is supported at the bottom of the filter bed body 1 and forms a water flow channel (not marked in the figure) between the second arc segment and the base 5, and the water pump 41 is located in the water flow channel. Figure 3 As shown, the aforementioned base 5 is supported under the second arc segment of the filter bed body 1, and the oxygenation component and the water pump 41 are respectively located at the inlet and outlet ends of the water flow channel, so that when the water pump 41 is running, a part of the untreated water pumped by it enters the accommodating space through the second through hole 13 on the second arc segment to enhance the circulation flow boosting effect on the water body and the biological filter material 11, and on the other hand, the biodegraded water in the accommodating space is replaced and enters the external water body, thereby improving the treatment efficiency and effect of the entire water area.

[0051] In some embodiments, the filter bed body 1 is made of a light-shielding material (such as stainless steel, PP, PVC, etc.), or the filter bed body 1 has a light-shielding layer on its outer surface, which can provide a normal production and activity environment for nitrifying bacteria and prevent light from producing green algae in the biological filter bed.

[0052] In some embodiments, the foam holding volume of the foam discharge assembly is adjustable to accommodate different aeration amounts, foam generation amounts, etc., to prevent improper loss of water. The aforementioned adjustable foam holding volume can be implemented in various ways, for example, the aforementioned foam collection cover 31 can be designed as a structure with vertically retractable height (which can be adjusted manually or automatically), and the aforementioned height adjustment of the foam discharge pipe 32 can also be used to achieve it.

[0053] The working process of a specific embodiment of the integrated in-situ protein separation biological filter bed of the present invention is further described below:

[0054] ① Oxygenation stage

[0055] The high-efficiency oxygen enrichment device (i.e. the aforementioned oxygen enrichment component, the same below) is started, and the air pump (i.e. the aforementioned oxygen pump, the same below) transports oxygen in the air into the water; the bubble diffuser evenly distributes the bubbles in the water to ensure the full dissolution and utilization of oxygen.

[0056] The oxygenation device is tightly combined with the protein separator (i.e. the aforementioned foam discharge assembly, the same below) and the biological filter bed (i.e. the aforementioned filter bed body 1 and the biological filter material 11 therein) to form an integrated oxygenation system, further improving oxygen dissolution and utilization, and ensuring the water quality treatment effect.

[0057] ②Biological filtration stage

[0058] The unilateral pores (also known as the aforementioned bubble diffusers, the same below) allow water to flow into the biofilter from one side, and sufficient biological filtration is carried out through the oval-shaped structure of the filter bed layer. The rising of bubbles and the driving effect of water flow enhance the water circulation and oxygen supply, ensuring the efficient biological filtration; microorganisms attach and grow on the surface of the filter material, decomposing harmful substances such as ammonia nitrogen and nitrite in the water and converting them into harmless substances (including nitrate (NO 3 - ), nitrogen (N 2 ), carbon dioxide (CO 2 ), water (H 2 O) and other substances).

[0059] ③Protein separation stage

[0060] The oxygenation device at the bottom generates a large number of small bubbles. The bubbles pass through the biological filter bed, adhere to the suspended particles and macromolecular organic matter suspended in the water, and then rise to the bubble generating chamber (that is, the aforementioned foam collecting cover 31, the same below) to form larger bubbles, which is convenient for the efficient discharge of foam; the suspended particles and macromolecular organic matter in the water body are adhered by the bubbles and float to the water surface, forming foam in the foam generating chamber; the foam is collected by the collection pipe of the separation chamber (that is, the aforementioned foam discharge pipe 32, the same below) and concentrated in the collection tank, which is convenient for regular cleaning.

[0061] In another specific embodiment, the integrated in-situ protein separation biofilter of the present invention integrates a control panel and an intelligent sensor to monitor the system operation status and water quality parameters in real time. Users can set parameters and perform system maintenance through the control panel to ensure stable operation and efficient processing of the equipment.

[0062] Specifically, an intelligent dissolved oxygen (DO) sensor is arranged in the integrated in-situ protein separation biofilter of the present invention to monitor the oxygen content in the water in real time and automatically adjust the oxygen addition amount (for example, when it is lower than a certain value (5 mg / L)), aeration is turned on and enhanced. 3 -N), nitrite (NO 2 -), temperature and other sensors monitor water quality parameters, automatically adjust the aeration device and water pump flow; monitor foam generation in real time, and automatically adjust the height of the foam separation chamber to achieve the best separation effect. In the specific use process, the oxygenation stage: the oxygenation device is started, and the oxygenation amount is automatically adjusted according to the oxygen content in the water; the biological filtration stage: the intelligent filter bed control system automatically adjusts the aeration device and water pump flow according to water quality parameters; the protein separation stage: the intelligent separation control system automatically adjusts the working state of the foam generation chamber and the separation chamber to improve the separation efficiency. The intelligent control system (that is, the system composed of the aforementioned control panel and intelligent sensors) realizes the automatic management and monitoring of the equipment, reduces manual intervention, improves the reliability and stability of the system, monitors water quality parameters in real time, and ensures stable and efficient water quality treatment.

[0063] The integrated in-situ protein separation biofilter provided by the present invention overcomes many shortcomings of the prior art by integrating oxygenation, biofiltration and protein separation functions, and has significant technical effects and advantages. The following are the main advantages and effects of the present invention compared with the prior art:

[0064] (1) Reduce energy consumption, lower costs, and improve efficiency

[0065] Integrated design: Integrate protein separation, biofiltration and oxygenation functions into one device to achieve integrated management. Compared with traditional decentralized equipment, the three functional units share the same power source and control system, which significantly reduces energy consumption. For example, the energy consumption of the traditional decentralized system is 216 kWh per month (calculated at 100w per unit), and a water pump is required for extraction. However, the "integrated in-situ protein separation biofilter bed" integrated system does not require a water pump and consumes only 72 kWh per month, reducing energy consumption by more than 70%.

[0066] Synergistic effect: Through integrated design, synergistic effect between systems is achieved to improve the overall efficiency of water treatment. The close combination of protein separation and biological filtration enhances the decomposition and conversion efficiency of organic matter.

[0067] (2) Save floor space

[0068] Compact structure: The integrated design significantly reduces the equipment footprint, which is particularly suitable for small and medium-sized aquaculture farms and home ornamental fish aquariums, optimizing the utilization of farm and home space. For example, the traditional decentralized system occupies 7 square meters (according to 1 square meter of aeration equipment, 5 square meters of biological filters, and 1 square meter of protein separators), while the integrated system occupies only about 1 square meter, reducing the footprint by more than 80%.

[0069] Reduced piping connections: Reduced piping connections between equipment, reducing installation complexity and maintenance costs. For example, the total length of the pipeline in the traditional system is 10 meters, while the integrated system does not require piping connections (except for the thin hoses of the oxygenation pipeline and the foam collection pipe), and does not require additional power.

[0070] (3) Simplify maintenance and management

[0071] Integrated maintenance: The integrated design reduces the number of devices that need to be maintained independently, simplifying the daily management and maintenance of the system. Through design optimization, biological filtration and protein separation are automatically operated after aeration is turned on. Users only need to maintain one integrated device, reducing the difficulty of operation and the failure rate.

[0072] Automatic control: The integrated control system can realize automatic operation more conveniently, reduce manual intervention, and improve the reliability and stability of the system.

[0073] (4) Improve water quality treatment effect

[0074] Efficient oxygenation: The oxygenation equipment is closely integrated with the protein separator and the biofilter bed to form an integrated oxygenation system. By adopting advanced microbubble technology, the oxygen in the air is efficiently dissolved into the water, and the aeration and oxygenation drive the biofilter material to move, provide power for the protein separation part, and ensure the full dissolution and utilization of oxygen.

[0075] Biofilter bed optimization: Through single-sided aeration, plug flow and oval-shaped filter bed design, the biofilter media is evenly dispersed, the biological filtration effect of the biofilter bed is optimized, and harmful substances such as ammonia nitrogen and nitrite in the water are effectively decomposed to maintain stable water quality.

[0076] Efficient protein separation: Through advanced in-situ separation technology, the equipment can timely and efficiently separate suspended particles and macromolecular organic matter in the water, reduce water pollution and reduce the risk of fish diseases.

[0077] In summary, the present invention solves the problems of scattered equipment, high energy consumption, large floor space, complex maintenance and low efficiency in existing aquaculture water treatment technology by providing an integrated, efficient and simple-to-maintain integrated in-situ protein separation biofilter. The device is particularly suitable for small and medium-sized aquaculture farms and domestic ornamental fish farming, significantly improving the water quality treatment effect and enhancing the economic benefits and sustainability of aquaculture.

[0078] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An integrated in-situ protein separation biofilter, characterized in that: The invention comprises a filter bed body (1), a foam discharge component and an oxygenation component, wherein the filter bed body (1) has a containing space, the containing space is used to contain biological filter material (11), and when projected on a vertical plane, the boundary of the containing space is in the shape of an oval circle, and the first arc segment of the oval circle is located at the top of the containing space, and the second arc segment is located at the bottom of the containing space, the oxygenation component is arranged corresponding to the second arc segment, and the foam discharge component is arranged corresponding to the first arc segment, and the bubbles generated by the oxygenation component can enter the containing space and float up in the containing space to generate foam, and the foam discharge component can collect the generated foam and discharge it into a target space.

2. The integrated in-situ protein separation biofilter according to claim 1, characterized in that: The oxygenation component comprises an aeration pipe (21) and a bubble diffuser (22) connected to the outlet of the aeration pipe (21); the bubble diffuser (22) is located in the connection area between the second arc segment and the vertical segment of the oval shape and in the accommodating space.

3. The integrated in-situ protein separation biofilter according to claim 2, characterized in that: The oxygenation components include at least two groups, and the bubble diffusers (22) in each group of the oxygenation components generate bubbles with different diameters.

4. The integrated in-situ protein separation biofilter according to claim 1, characterized in that: The foam discharge component comprises a foam collection hood (31) sealedly connected to the outer wall surface of the first arc segment, a discharge outlet is formed on the top of the foam collection hood (31), a foam discharge pipe (32) is detachably connected to the discharge outlet, and the outlet of the foam discharge pipe (32) is placed in the target space.

5. The integrated in-situ protein separation biofilter according to claim 4, characterized in that: The foam collecting cover (31) is in the shape of an inverted cone, and the large mouth of the inverted cone is connected to the first arc segment; or, the foam collecting cover (31) is in the shape of an hourglass, and one end face of the hourglass is connected to the first arc segment, and the discharge port is constructed on the other end face.

6. The integrated in-situ protein separation biofilter according to claim 1, characterized in that: The first arc segment has a first through hole (12) penetrating the inside and outside of the accommodating space, and the second arc segment has a second through hole (13) penetrating the inside and outside of the accommodating space, and the aperture of the first through hole (12) is larger than the aperture of the second through hole (13).

7. The integrated in-situ protein separation biofilter according to claim 1, characterized in that: It also includes a water pump assembly, which is arranged corresponding to the second arc segment, and the water outlet direction of the water pump (41) of the water pump assembly is toward one side of the oxygenation assembly and is parallel to the arc top tangent of the second arc segment.

8. The integrated in-situ protein separation biofilter according to claim 7, characterized in that: It also comprises a base (5), the base (5) being supported on the bottom of the filter bed body (1) and forming a water flow channel between the second arc segment and the base (5), and the water pump (41) being located in the water flow channel.

9. The integrated in-situ protein separation biofilter according to claim 1, characterized in that: The filter bed body (1) is made of a light-shielding material, or a light-shielding layer is provided on the outer surface of the filter bed body (1).

10. The integrated in-situ protein separation biofilter according to claim 1, characterized in that: The foam holding volume of the foam discharge assembly is adjustable.

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