A micro-ecological base reaction filter device for aquaculture tail water treatment

Abstract

The utility model provides a kind of micro-ecological base reaction filtering device, it is related to aquaculture tail water treatment technical field, including filter box and aeration assembly, filter box is equipped with filler filter chamber, inorganic adsorption chamber and biological reaction chamber;Filter box is equipped with filter screen box and the filter filler filled in filter screen box;Inorganic adsorption chamber is equipped with inorganic adsorption plate, and biological reaction chamber is equipped with multiple biological reaction assembly;Biological reaction assembly includes fixed frame, water-permeable screen and adsorption filler.The utility model has the beneficial effect that: the filter filler of the filtering device can effectively intercept the pollutants such as suspended solids, colloid in influent;Inorganic adsorption plate has microporous structure, it can efficiently intercept small particulate matter in water body, and it has specific adsorption effect on phosphate ion, and adsorption filler in fixed frame adsorbs a large number of microorganisms, and these microorganisms can effectively reduce the nitrogen content in tail water.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture wastewater treatment technology, specifically to a micro-ecological base reactive filtration device for aquaculture wastewater treatment. Background Technology

[0002] In aquaculture wastewater treatment, a low carbon-to-nitrogen ratio (C / N) is a key bottleneck restricting nitrogen removal efficiency. Traditional solutions involve adding external carbon sources (such as glucose or methanol), but this increases operating costs, operational complexity, and the risk of secondary pollution. Existing filter media in aquaculture wastewater treatment systems (such as expanded clay or quartz sand) have limited functions, primarily serving physical retention and microbial biofilm formation, and cannot regulate the C / N ratio. Furthermore, aquaculture wastewater has a high phosphorus content, making it difficult to effectively reduce phosphorus levels in wastewater while simultaneously reducing nitrogen.

[0003] Therefore, there is an urgent need to develop a treatment method for aquaculture wastewater that can provide filtration, intelligently replenish carbon sources, promote the growth of functional microorganisms, and is easy to maintain and replace. Utility Model Content

[0004] In view of this, the main objective of this utility model is to propose a micro-ecological reactive filtration device for treating aquaculture wastewater. Its filter media can effectively trap suspended solids, colloids, and other pollutants in the influent and remove suspended impurities from the wastewater. The inorganic adsorption plate has a microporous structure, which has a specific adsorption effect on phosphate ions, effectively reducing the phosphorus content in the water. The adsorption media within the fixed frame adsorbs a large number of nitrifying bacteria, denitrifying bacteria, and diatomaceous microorganisms, which effectively reduce the nitrogen content in the wastewater. Furthermore, the filter media of this filtration device is simple and convenient to replace, clean, and maintain, reducing the difficulty of maintaining the filtration device.

[0005] To achieve the above objectives, this utility model provides a micro-ecological-based reactive filtration device for treating aquaculture wastewater, comprising a filter box and an aeration assembly. The filter box is equipped with two partition plates, which divide the cavity inside the filter box into a packing filter chamber, an inorganic adsorption chamber and a biological reaction chamber that are connected in sequence. The filter box is provided with an inlet pipe and an outlet pipe on both sides. The inlet pipe is connected to the filter chamber and the outlet pipe is connected to the biological reaction chamber. The filter box is provided with a filter screen box and filter media filled in the filter screen box. The inorganic adsorption chamber is equipped with at least one inorganic adsorption plate, and the bioreactor chamber is equipped with multiple bioreactor components. The bioreactor components include a fixed frame, a permeable net, and adsorption packing for bioreactoring. The adsorption packing contains microorganisms for denitrification. The aeration components include an aeration main pipe and multiple aeration branch pipes. The aeration main pipe is fixed outside the filter box. One end of the aeration branch pipe is connected to the aeration main pipe, and the other end extends through the filter box to the bottom of the bioreactor chamber. Aeration micropores are distributed on the aeration main pipe.

[0006] Furthermore, the two partition plates are a first partition plate and a second partition plate, respectively. The first partition plate separates the filler filter chamber and the inorganic adsorption chamber, and the second partition plate is provided with water-permeable holes.

[0007] Furthermore, the inorganic adsorption chamber has multiple first mounting slots on both sides of its inner wall, and the bioreactor chamber has multiple second mounting slots on both sides of its inner wall. The inorganic adsorption plate is respectively confined within the first mounting slots on both sides, and the fixed frame is respectively confined within the second mounting slots on both sides.

[0008] Furthermore, the filter media is rice husk.

[0009] Furthermore, the water inlet pipe is located below the filter box.

[0010] Furthermore, the filter box is provided with a support plate, on which the inorganic adsorption plate, filter screen box and fixed frame are all supported, and the support plate is provided with aeration holes.

[0011] Furthermore, all the aeration branch pipes are located below the support plate.

[0012] Furthermore, the bioreactor chamber is also provided with multiple baffles, which divide the bioreactor chamber into multiple baffle cavities. The baffles and the inner wall of the bioreactor chamber form baffle openings, and the multiple baffle openings are arranged in an alternating pattern.

[0013] Furthermore, a sewage discharge funnel is provided at the bottom of the sewage treatment tank, and a sewage discharge port is provided at the bottom of the sewage discharge funnel.

[0014] Furthermore, the top of the filter box is also provided with a cover, and the top of the cover is provided with an exhaust port.

[0015] The beneficial effects of the micro-ecological base reactive filtration device for treating aquaculture wastewater according to this utility model are: (1) The microecological-based reactive filtration device includes a filter box and an aeration assembly. The filter box contains a packing filter chamber, an inorganic adsorption chamber, and a biological reaction chamber. The filter box contains a filter screen and filter packing material filled in the filter screen. The inorganic adsorption chamber contains at least one inorganic adsorption plate, and the biological reaction chamber contains multiple biological reaction components. The biological reaction components include a fixed frame, a permeable net, and adsorption packing material, wherein the adsorption packing material adsorbs microorganisms used for denitrification. The filter packing material in the filter screen can effectively intercept suspended solids, colloids, and other pollutants in the influent and remove suspended impurities in the effluent. The inorganic adsorption plate has a microporous structure, which can efficiently intercept small particulate matter in the water and has a specific adsorption effect on phosphate ions, which can effectively reduce the phosphorus content in the water. The fixed frame contains microorganisms used for denitrification. The adsorption packing contains a large number of nitrifying bacteria, denitrifying bacteria, and diatom microorganisms. The microorganisms in the adsorption packing can effectively reduce the nitrogen content in the effluent.

[0016] (2) The filter media of the micro-ecological reaction filter device is rice husk. Rice husk itself has a high carbon content and can be slowly degraded in water, continuously releasing organic carbon. This can provide a stable and economical endogenous carbon source for the microorganisms in the bioreactor. In addition, rice husk is rich in silicon, which can provide the necessary nutrients for the growth and reproduction of diatoms. This is conducive to building a symbiotic system of bacteria and algae with diatoms as the dominant species, strengthening the absorption of nitrogen and phosphorus, and thus fundamentally solving the problem of low carbon-nitrogen ratio.

[0017] (3) The top of the filter box of the micro-ecological base reaction filter device is also equipped with a cover. The filter packing is filled in the filter screen box, the adsorption packing of the bioreactor is set in the fixed frame, and the inorganic adsorption plate is limited in the slot structure. After the cover is opened, the filter screen box, bioreactor and inorganic adsorption plate can be quickly removed and replaced. This makes the replacement, cleaning and maintenance of filter media simple and convenient, reduces the difficulty of maintaining the filter device, and ensures the continuity and stability of the tailwater treatment project. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a micro-ecological base reactive filtration device for treating aquaculture wastewater, according to an embodiment of this utility model.

[0020] Figure 2This is a cross-sectional view of a microecological reactive filtration device for treating aquaculture wastewater, according to an embodiment of this utility model.

[0021] Figure 3 This is a top view of the filter box of a micro-ecological base reactive filtration device for treating aquaculture wastewater, according to an embodiment of this utility model.

[0022] Figure 4 This is a cross-sectional view of the bioreactor component of a microecological-based reactive filtration device for treating aquaculture wastewater, according to an embodiment of this utility model.

[0023] In the above figure: 100 - Filter housing; 101 - Water inlet; 102 - Drain outlet; 103 - Sewage funnel; 104 - Sewage outlet; 105 - Support frame; 200 - Cover; 201 - Exhaust port; 300 - First partition plate; 301 - Second partition plate; 302 - Support plate; 303 - Baffle plate; 400 - Filter box; 401 - Filter screen; 402 - Filter media; 500-Inorganic Adsorption Plate; 600 - Bioreactor component; 601 - Fixing frame; 602 - Permeable mesh; 603 - Adsorption packing material; 700 - Main aeration pipe; 701 - Branch aeration pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] refer to Figures 1 to 4 This utility model relates to a micro-ecological base reaction filtration device for treating aquaculture wastewater.

[0028] This utility model discloses a micro-ecological reactive filtration device for treating aquaculture wastewater, comprising a filter box 100 and an aeration assembly. The filter box 100 is an open rectangular box with two partition plates inside, dividing the internal cavity of the filter box 100 into a sequentially connected packing filter chamber, an inorganic adsorption chamber, and a biological reaction chamber. The two partition plates are a first partition plate 300 and a second partition plate 301. The first partition plate 300 separates the packing filter chamber and the inorganic adsorption chamber, while the second partition plate 301 separates the inorganic adsorption chamber and the biological reaction chamber. The second partition plate 301 has permeable holes, and the top of the first partition plate 300 is lower than the top of the second partition plate 301. A sludge discharge funnel 103 is also provided at the bottom of the filter box 100, with a sludge discharge port 104 at the bottom of the sludge discharge funnel 103. The bottom of the filter housing 100 is supported by a support frame 105, which suspends the drain port 104. The drain port 104 is closed when the filter device is working, and it is opened periodically to discharge solid impurities accumulated at the bottom of the filter housing 100.

[0029] The filter housing 100 has an inlet pipe 101 and an outlet pipe 102 on both sides. The inlet pipe 101 is connected to the filter chamber, and the outlet pipe 102 is connected to the biological reaction chamber. The filter housing 100 contains a filter screen box 400 and filter media 402 filled within it. The filter screen box 400 has filter screens 401 at both the top and bottom. In this embodiment, the filter media 402 is rice husk. The inlet pipe 101 is located below the filter screen box 400. The wastewater to be treated enters the filter screen box 400 from the inlet pipe 101, flows upward, and passes through the filter screen 401 and the rice husk. The water enters the inorganic adsorption chamber through the top of the first partition plate 300. The rice husk itself has a high carbon and silicon content, which can be slowly degraded in the water, continuously releasing organic carbon. This can increase the organic carbon and silicon content in the water. Large particulate impurities in the effluent are blocked by the filter screen 401 at the bottom of the filter screen box 400 and accumulate in the sewage funnel 103, and are periodically discharged from the sewage outlet 104. The rice husk has a natural complex structure and a large specific surface area, which can effectively intercept fine suspended solids, colloids and other pollutants in the water that passes through the filter screen box 400, thereby filtering impurities in the water to be treated.

[0030] The inorganic adsorption chamber is equipped with at least one inorganic adsorption plate 500. In this embodiment, there are two inorganic adsorption plates 500. The inorganic adsorption plates 500 are sintered ceramic plates with a large number of microporous structures. The microporous structure of the inorganic adsorption plates 500 can efficiently trap small particulate matter in the water, and at the same time, it has a specific adsorption effect on phosphate ions, which can effectively reduce the phosphorus content in the water. Specifically, multiple first mounting slot plates are provided on both sides of the inner wall of the inorganic adsorption chamber. The first mounting slot plates have first mounting slots, and the two sides of the inorganic adsorption plates 500 are respectively confined within the first mounting slots.

[0031] The bioreactor chamber is equipped with multiple bioreactor components 600. Each bioreactor component 600 includes a fixed frame 601, a permeable mesh 602, and an adsorption packing 603. The adsorption packing 603 adsorbs microorganisms for denitrification. In this embodiment, the microorganisms include diatoms, nitrifying bacteria, and denitrifying bacteria. The adsorption packing 603 can be made of porous nylon fiber, which has a large specific surface area and high strength. The adsorption packing 603 can fully adsorb and fix microorganisms to form a biofilm. The aeration component includes an aeration main pipe 700 and multiple aeration branch pipes 701. The aeration main pipe 700 is fixed outside the filter box 100. One end of each aeration branch pipe 701 is connected to the aeration main pipe 700, and the other end extends through the filter box 100 to the bottom of the bioreactor chamber. Aeration micropores are distributed on the aeration main pipe 700. The aeration main pipe 700 is used to connect an aeration pump, allowing air to be introduced into the bioreactor chamber through the aeration main pipe 700 and the aeration branch pipes 701.

[0032] Water filtered by the inorganic adsorption plate 500 enters the bioreactor chamber. After being filtered by the packing material and adsorbed through micropores, the water contains relatively abundant organic carbon, providing a stable and economical endogenous carbon source for the microorganisms in the bioreactor chamber. Furthermore, the silicon provided by the rice husks offers essential nutrients for the growth and reproduction of diatoms, facilitating the construction of a diatom-dominant symbiotic system and enhancing nitrogen and phosphorus absorption, thus fundamentally solving the low carbon-to-nitrogen ratio problem. The aeration component improves the nitrogen removal efficiency of the microorganisms within the bioreactor chamber. Water treated by the bioreactor component 600 in the bioreactor chamber meets discharge standards and is discharged from the outlet pipe 102.

[0033] In a preferred embodiment, multiple second mounting slots are provided on both sides of the inner wall of the bioreactor chamber. Each second mounting slot has a second mounting groove, and the two sides of the fixing frame 601 are respectively confined within the second mounting groove. The filter box 100 is provided with a support plate 302, on which the inorganic adsorption plate 500, the filter screen box 400, and the fixing frame 601 are all supported. The support plate 302 is provided with aeration holes. Aeration branch pipes 701 are all located below the support plate 302. The aeration holes allow air introduced by the aeration branch pipes 701 to enter the bioreactor chamber.

[0034] In a preferred embodiment, the bioreactor chamber is further provided with multiple baffles 303, which divide the bioreactor chamber into multiple baffle cavities. The baffles 303 and the inner wall of the bioreactor chamber form baffle openings, and the multiple baffle openings are arranged in an alternating manner. This baffle structure can ensure that the water in the bioreactor chamber can pass through all the baffle cavities in sequence, so that the water can be treated by all the bioreactor components 600 in sequence. This baffle structure can significantly extend the actual residence time of sewage in the device, avoid short-circuiting, and ensure that the sewage and biofilm are in full contact.

[0035] In a preferred embodiment, the top of the filter box 100 is also provided with a cover 200, and the top of the cover 200 is provided with an exhaust port 201. The exhaust port 201 is used to discharge the air introduced by the aeration pump, so as to facilitate the upward flow of air in the bioreactor chamber.

[0036] This invention relates to a micro-ecological reactive filtration device for treating aquaculture wastewater. The device utilizes rice husks as filter media 402, which adsorbs and filters suspended solids, colloids, and other pollutants from the influent while simultaneously replenishing the water with silicon and organic carbon at low cost. This provides a stable and economical endogenous carbon source for the microorganisms in the bioreactor chamber. Furthermore, rice husks are rich in silicon, providing essential nutrients for the growth and reproduction of diatoms, facilitating the construction of a diatom-dominant symbiotic system and enhancing nitrogen and phosphorus absorption, thus fundamentally solving the problem of low carbon-to-nitrogen ratio. The inorganic adsorption plate 500 effectively reduces the phosphorus content in the water. The filter screen 400, bioreactor component 600, and inorganic adsorption plate 500 of this micro-ecological reactive filtration device can all be quickly removed and replaced, simplifying the replacement, cleaning, and maintenance of the filter media, reducing the difficulty of maintaining the filtration device, and ensuring the continuity and stability of the wastewater treatment project.

[0037] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A micro-ecological-based reactive filtration device for treating aquaculture wastewater, characterized in that, It includes a filter box (100) and an aeration assembly. The filter box (100) is provided with two partition plates, which divide the cavity inside the filter box (100) into a packing filter chamber, an inorganic adsorption chamber and a biological reaction chamber that are connected in sequence. The filter box (100) is provided with an inlet pipe (101) and an outlet pipe (102) on both sides respectively. The inlet pipe (101) is connected to the filter chamber of the packing material, and the outlet pipe (102) is connected to the biological reaction chamber. The filter box (100) is provided with a filter screen box (400) and filter packing material (402) filled in the filter screen box (400). The inorganic adsorption chamber is provided with at least one inorganic adsorption plate (500), and the bioreactor chamber is provided with multiple bioreactor components (600); the bioreactor component (600) includes a fixed frame (601), a permeable net (602), and an adsorption packing (603), and the adsorption packing (603) adsorbs microorganisms for denitrification. The aeration assembly includes an aeration main pipe (700) and multiple aeration branch pipes (701). The aeration main pipe (700) is fixed outside the filter box (100). One end of the aeration branch pipe (701) is connected to the aeration main pipe (700), and the other end extends through the filter box (100) to the bottom of the bioreactor chamber. Aeration micropores are distributed on the aeration main pipe (700).

2. The microecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The two partition plates are a first partition plate (300) and a second partition plate (301). The first partition plate (300) separates the filler filter chamber and the inorganic adsorption chamber, and the second partition plate (301) has water-permeable holes distributed on both.

3. The microecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The inorganic adsorption chamber has multiple first mounting slots on both sides of its inner wall, and the bioreactor chamber has multiple second mounting slots on both sides of its inner wall. The inorganic adsorption plate (500) is respectively located in the first mounting slots on both sides, and the fixed frame (601) is respectively located in the second mounting slots on both sides.

4. The micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The filter media (402) is rice husk.

5. A micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The water inlet pipe (101) is located below the filter box (400).

6. A micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The filter box (100) is provided with a support plate (302), and the inorganic adsorption plate (500), filter screen box (400) and fixed frame (601) are all supported on the support plate (302). The support plate (302) is provided with aeration holes.

7. A micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 6, characterized in that, The aeration branch pipes (701) are all located below the support plate (302).

8. A micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The bioreactor is also provided with multiple baffles (303), which divide the bioreactor into multiple baffle chambers. The baffles (303) and the inner wall of the bioreactor form baffle openings, and the multiple baffle openings are arranged in an alternating manner.

9. A micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The bottom of the filter box (100) is also provided with a drain funnel (103), and the bottom of the drain funnel (103) is provided with a drain port (104).

10. A micro-ecological-based reactive filtration device for treating aquaculture wastewater according to claim 1, characterized in that, The filter box (100) is also provided with a cover (200) on top, and the cover (200) is provided with an exhaust port (201) on top.

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