Biological filter for culturing crabs in hydrogen-rich water

Abstract

The invention provides a biological filter for culturing crabs in hydrogen-rich water, and relates to the technical field of hydrogen-rich water culture. The biological filter for cultivating the crabs in the hydrogen-rich water comprises a filter body communicated with a crab cultivating box, the inner wall of the filter body is fixedly connected with a lower bearing plate and an upper baffle, a water inlet of the filter body is located below the lower bearing plate, and the space between the lower bearing plate and the upper baffle is filled with a filler layer. The aeration pipe is adopted, mixed gas rich in hydrogen and oxygen is used as a gas source for aeration, contact of organic matter and oxygen in sewage is accelerated, degradation and oxidation of the organic matter are promoted, meanwhile, hydrogen can remove part of harmful free radicals in the sewage, meanwhile, pathogenic bacteria or conditioned pathogenic bacteria are inhibited, and in addition, the oxygen content in the sewage is reduced. The treated water is reused for a breeding system (as make-up water), can also provide a certain hydrogen-rich environment for crabs, belongs to potential'hydrogen-rich 'effect transfer, and improves the subsequent blue crab breeding effect.

Description

Technical Field

[0001] This invention relates to the field of hydrogen-rich water aquaculture technology, specifically to a biological filter pond for raising crabs in hydrogen-rich water. Background Technology

[0002] When raising mud crabs, wastewater needs to be treated and then recycled back into the rearing tanks. Mud crabs are susceptible to more than a dozen diseases during farming, including vibriosis, yellow water disease (pus crab disease), ciliate disease, filamentous algae attachment syndrome, crab slave disease, gill parasites, and saturation disease (edema disease). Most of these diseases are transmitted through water or originate directly from water bodies. Excrement produced by crab metabolism and unused feed from farming enter the interior of the biological filter and settle at the bottom. Traditional biological filters mostly rely on manual retrieval of floating impurities using nets, resulting in some excrement accumulating at the bottom of the tank for a long time, which leads to the proliferation of a large number of harmful microorganisms. This contaminates the recycled water and causes great harm to the health of the crab larvae.

[0003] Therefore, this application provides a biological filter for raising crabs in hydrogen-rich water. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a hydrogen-rich water biological filter for crab farming. This solves the problem that in existing technologies, excrement produced by crabs during farming and unused feed enter the interior of the biological filter and settle at the bottom. Traditional biological filters mostly rely on manual netting to remove floating impurities from the filter surface, resulting in long-term sedimentation of excrement at the bottom, which leads to the proliferation of harmful microorganisms. This contaminates the recycled water and severely damages the health of crab larvae.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a biological filter for raising crabs in hydrogen-rich water, comprising a filter body connected to a crab raising box, wherein a lower support plate and an upper baffle are fixedly connected to the inner wall of the filter body, the water inlet of the filter body is located below the lower support plate, and a filler layer is filled between the lower support plate and the upper baffle.

[0008] An aeration pipe is inserted through the interior of the filter body. A cleaning mechanism is installed between the lower support plate and the bottom of the inner wall of the filter body. Several rubber blocks are fixedly connected to the side wall of the filter body away from the cleaning mechanism.

[0009] Preferably, the aeration pipe includes an air pipe, a second connecting pipe, and a plurality of nozzles. One end of the air pipe is fixedly connected to one side of the outer surface of the second connecting pipe. The second connecting pipe has a mesh structure, and the nodes of the mesh structure of the second connecting pipe are respectively fixedly connected to the corresponding nozzles.

[0010] Preferably, the decontamination mechanism includes multiple connecting blocks fixedly connected to the side wall of the filter body, each of the multiple connecting blocks having a spring fixedly connected to one end, and each of the multiple springs having a scraper fixedly connected to one end. The upper surface of the scraper is slidably connected to the lower surface of the lower support plate, and the lower surface of the scraper is slidably connected to the bottom of the inner wall of the filter body.

[0011] Preferably, a base and a sludge discharge box are fixedly connected to the lower surface of the filter body, the sludge discharge box is connected to the bottom of the filter body, and a sludge discharge trough is provided inside the sludge discharge box.

[0012] Preferably, a sewage pump is fixedly installed inside the sewage discharge tank, and a sewage pipe is fixedly connected to the discharge port of the sewage pump. One end of the sewage pipe extends through to the outside of the filter tank body.

[0013] Preferably, the end of the vent pipe away from the second connecting pipe extends through to the outside of the filter body and is fixedly connected to the air inlet pipe, and the side wall of the filter body is provided with a perforation that matches the vent pipe.

[0014] Preferably, the inlet of the filter body is fixedly connected to a conduit, a one-way valve is fixedly installed at the end of the conduit near the filter body, a water pump is fixedly installed at the end of the conduit away from the filter body, the inlet of the water pump is fixedly connected to a first connecting pipe, the first connecting pipe is a multi-port pipe, and multiple ports of the first connecting pipe are fixedly connected to a drain pipe, one end of the drain pipe is fixedly connected to the sewage outlet of the crab raising box.

[0015] Preferably, an inspection port is provided on the front of the filter body and at the position corresponding to the packing layer, and a safety door is installed on the side of the inspection port with a sealed hinge.

[0016] (III) Beneficial Effects

[0017] This invention provides a biological filter for raising crabs in hydrogen-rich water. It has the following beneficial effects:

[0018] 1. This type of hydrogen-rich water biological filter for crab farming uses aeration pipes to aerate a mixture of hydrogen and oxygen, accelerating the contact between organic matter and oxygen in the wastewater. This promotes the degradation and oxidation of organic matter, while hydrogen can remove some harmful free radicals in the wastewater and inhibit pathogenic or conditionally pathogenic bacteria. This reduces the risk of pathogenic microorganisms re-polluting the aquaculture water or biological filter through wastewater circulation. Furthermore, the treated water is reused in the aquaculture system (as supplementary water), which can also provide a certain hydrogen-rich environment for crabs. This represents a potential "hydrogen-rich" effect transfer, improving the subsequent crab farming results.

[0019] 2. This type of hydrogen-rich water biological filter for crab farming utilizes rubber baffles, a sludge removal mechanism, a sludge pump, and a sludge discharge trough. When wastewater ceases to flow into the filter body, the scraper, under the elastic force of the spring, pushes impurities from the lower surface of the support plate and the bottom of the filter body's inner wall towards the inlet. This causes the sludge remaining below the support plate to be concentrated and pushed into the sludge discharge trough. Subsequently, the sludge pump extracts the impurities along with some of the wastewater from the filter body, thus cleaning the impurities at the bottom of the filter body's inner wall. This prevents excrement from accumulating at the bottom of the pond for a long time, which could lead to the growth of a large number of harmful microorganisms and contaminate the recycled water, thus promoting the healthy growth and development of crab larvae. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the filter body of the present invention;

[0022] Figure 3 This is a schematic diagram of the aeration pipe of the present invention;

[0023] Figure 4 This is a schematic diagram of the filter body and the decontamination mechanism of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0025] The components include: 1. Crab raising box; 2. Filter body; 3. Drainage pipe; 4. First connecting pipe; 5. Water pump; 6. Conduit; 7. One-way valve; 8. Base; 9. Sewage tank; 10. Perforation; 11. Lower support plate; 12. Upper baffle; 13. Packing layer; 14. Aeration pipe; 1401. Air pipe; 1402. Second connecting pipe; 1403. Nozzle; 15. Rubber block; 16. Scraper; 17. Spring; 18. Connecting block; 19. Sewage trough; 20. Air inlet pipe; 21. Sewage pump; 22. Sewage pipe; 23. Inspection port; 24. Safety door. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example: Figures 1-5 As shown, this embodiment of the invention provides a hydrogen-rich water biological filter for crab farming, including a filter body 2 connected to a crab farming box 1. The inner wall of the filter body 2 is fixedly connected to a lower support plate 11 and an upper baffle 12. The water inlet of the filter body 2 is located below the lower support plate 11, and a packing layer 13 is filled between the lower support plate 11 and the upper baffle 12. An inspection port 23 is provided on the front of the filter body 2 and at the position corresponding to the packing layer 13. A safety door 24 is installed on the side of the inspection port 23 with a sealed hinge. The packing layer 13 inside can be replaced by opening the safety door 24. At the same time, an aeration pipe 14 is inserted through the inside of the filter body 2, and the aeration pipe 14 is located in the middle of the packing layer 13.

[0028] The aeration pipe 14 is arranged in the middle or bottom of the packing layer 13, so that nitrification and denitrification can be completed in the same tank. The wastewater from crab farming passes through the packing layer 13. The pollutants in the water are intercepted by the packing layer 13 and transformed by the biodegradation on the filter media. At the same time, dissolved organic matter and specific substances are also removed. The sludge produced is retained in the filter layer, while only the purified water passes through.

[0029] Specifically, the side walls of the lower support plate 11 and the upper baffle plate 12 are provided with several small holes to facilitate the passage of sewage and prevent the filter media from being lost.

[0030] The aeration pipes 14 placed within the packing layer 13 are used for process aeration (mainly provided by aeration blowers), dividing the packing layer into upper and lower zones: the upper zone is an aerobic zone, and the lower zone is an anoxic zone. The height of the packing layer varies depending on the raw water quality, treatment purpose, and requirements, and the proportion of the aerobic and anaerobic zones also varies accordingly.

[0031] The treatment path for crab farming wastewater inside the filter body 2 is from bottom to top, and an external water pump should be installed at the top of the filter body 2 to pump water, thereby transferring the treated purified water to the next process.

[0032] Correspondingly, a cleaning mechanism is installed between the lower support plate 11 and the bottom of the inner wall of the filter body 2. Several rubber blocks 15 are fixedly connected to the side wall of the filter body 2 away from the cleaning mechanism. The cleaning mechanism includes multiple connecting blocks 18 fixedly connected to the side wall of the filter body 2. A spring 17 is fixedly connected to one end of each connecting block 18, and a scraper 16 is fixedly connected to one end of each spring 17. The upper surface of the scraper 16 is slidably connected to the lower surface of the lower support plate 11, and the lower surface of the scraper 16 is slidably connected to the bottom of the inner wall of the filter body 2. Because the scraper... The position of scraper 16 corresponds to the inlet of the filter body 2. When water enters the filter body 2, the scraper 16 will be impacted by the impact force of the water, thereby compressing the spring 17. The scraper 16 is located at the bottom of the inner wall of the filter body 2. When the water no longer flows into the filter body 2, the scraper 16 can return to the initial position close to the inlet under the elastic force of the spring 17. During this recovery process, the scraper 16 can push the impurities on the lower surface of the lower support plate 11 and the bottom of the inner wall of the filter body 2 towards the inlet, so that the sludge remaining below the lower support plate 11 is concentrated.

[0033] Meanwhile, a base 8 and a sludge tank 9 are fixedly connected to the lower surface of the filter body 2. The sludge tank 9 is connected to the bottom of the filter body 2, and a sludge trough 19 is opened inside the sludge tank 9. A sludge pump 21 is fixedly installed inside the sludge trough 19. The discharge port of the sludge pump 21 is fixedly connected to a sludge pipe 22. One end of the sludge pipe 22 extends through to the outside of the filter body 2, and the end of the sludge pipe 22 should be connected to the inlet of the external collection equipment. Based on the sludge being pushed by the scraper 16, the sludge will be pushed into the sludge trough 19. Then, by turning on the sludge pump 21, the impurities along with some of the sewage inside the filter body 2 can be extracted, making it easier to clean the impurities.

[0034] The aeration pipe 14 includes an air pipe 1401, a second connecting pipe 1402, and several nozzles 1403. One end of the air pipe 1401 is fixedly connected to one side of the outer surface of the second connecting pipe 1402. The second connecting pipe 1402 has a mesh structure, and the nodes of the mesh structure of the second connecting pipe 1402 are fixedly connected to the corresponding nozzles 1403. An external air source can enter the mesh-like second connecting pipe 1402 through the air pipe 1401, and then spray upward from the nozzles 1403 at the nodes to aerate the water flow inside the filter body 2. The top of the nozzles 1403 should also be equipped with a one-way valve to prevent the filter media of the packing layer 13 from entering and clogging the nozzles 1403.

[0035] One end of the vent pipe 1401, away from the second connecting pipe 1402, extends through to the outside of the filter body 2 and is fixedly connected to the air inlet pipe 20. The side wall of the filter body 2 is provided with a perforation 10 that matches the vent pipe 1401. Furthermore, one end of the air inlet pipe 20 is connected to the outlet of the external hydrogen-oxygen generator. Hydrogen-oxygen mixed gas is simultaneously transported into the interior of the filter body 2 through the vent pipe 1401 for aeration, which effectively improves the efficiency of sewage treatment, accelerates the contact between organic matter and oxygen in the sewage, promotes the degradation and oxidation of organic matter, effectively purifies wastewater, removes harmful gases, and, in the process of treating crab farming sewage, introduces hydrogen gas, which can play a pretreatment role. The treated water is then used in the subsequent oxygenation and hydrogenation steps.

[0036] Specifically, in hydrogen-rich water crab farming systems, hydrogen is introduced during the treatment of crab farming wastewater, and its effects are multifaceted:

[0037] 1. Hydrogen has selective antioxidant properties. In wastewater, hydrogen can react with some highly oxidizing and harmful substances (such as certain dissolved organic matter), thereby enhancing water purification;

[0038] 2. Introducing hydrogen can change the oxidation-reduction potential (ORP) of wastewater, making it more favorable for certain anaerobic or facultative anaerobic processes, which is beneficial for the removal of specific pollutants.

[0039] 3. The selective antioxidant effect of hydrogen can remove some harmful free radicals in wastewater, and may also inhibit certain pathogenic or opportunistic pathogens, reducing the risk of pathogenic microorganisms re-polluting aquaculture water or biological filters through wastewater circulation, and inhibiting the growth of harmful microorganisms.

[0040] 4. Some dissolved hydrogen may remain in the treated water. This water is reused in the aquaculture system (as supplementary water) and can also provide a certain hydrogen-rich environment for crabs, which is a potential "hydrogen-rich" effect transfer.

[0041] The inlet of the filter body 2 is fixedly connected to a conduit 6. A one-way valve 7 is fixedly installed at the end of the conduit 6 closest to the filter body 2, and a water pump 5 is fixedly installed at the end of the conduit 6 furthest from the filter body 2. The inlet of the water pump 5 is fixedly connected to a first connecting pipe 4. The first connecting pipe 4 is a multi-port pipe, and multiple ports of the first connecting pipe 4 are fixedly connected to a drain pipe 3. One end of the drain pipe 3 is fixedly connected to the sewage outlet of the crab farming box 1. The wastewater generated by the crab farming box 1 [crab farming box 1 is also known as crab apartment, a common indoor aquaculture equipment that can be used for year-round aquaculture without being restricted by season or region, while also avoiding cannibalism among crabs and natural disasters, thus improving the survival rate of crabs] will be pumped by the water pump 5 through the confluence of the drain pipe 3 and the first connecting pipe 4, and then enter the interior of the filter body 2 through the conduit 6 for treatment.

[0042] Working principle: The wastewater from crab farming enters through the inlet of the filter body 2 and flows upward through the filter layer 13. During this process, a mixed gas rich in hydrogen and oxygen is used as an aeration source to accelerate the contact between organic matter and oxygen in the wastewater. This promotes the degradation and oxidation of organic matter, while hydrogen can remove some harmful free radicals in the wastewater and inhibit pathogenic or conditionally pathogenic bacteria. This reduces the risk of pathogenic microorganisms re-polluting the aquaculture water or biological filter through wastewater circulation. Furthermore, the treated water is reused in the aquaculture system (as supplementary water), which can also provide a certain hydrogen-rich environment for the crabs. This represents a potential "hydrogen-rich" effect transfer, improving the subsequent crab farming results.

[0043] When the sewage stops flowing into the filter body 2, the scraper 16, under the elastic force of the spring 17, pushes the impurities on the lower surface of the lower support plate 11 and the bottom of the inner wall of the filter body 2 towards the inlet. This causes the sludge remaining below the lower support plate 11 to be concentrated and pushed into the sewage discharge trough 19. Then, the sewage pump 21 can pump out the impurities along with some of the sewage inside the filter body 2, thus cleaning the impurities at the bottom of the inner wall of the filter body 2. This prevents the excrement from accumulating at the bottom of the pool for a long time, which would cause a large number of harmful microorganisms to grow and pollute the recycled water, which would be detrimental to the healthy growth and development of crab seedlings.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the equivalents of the appended claims.

Claims

1. A biological filter for raising crabs in hydrogen-rich water, comprising a filter body (2) connected to a crab raising box (1), characterized in that: The inner wall of the filter body (2) is fixedly connected with a lower support plate (11) and an upper baffle (12). The water inlet of the filter body (2) is located below the lower support plate (11), and a packing layer (13) is filled between the lower support plate (11) and the upper baffle (12). An aeration pipe (14) is inserted through the interior of the filter body (2). A cleaning mechanism is installed between the lower support plate (11) and the bottom of the inner wall of the filter body (2). Several rubber blocks (15) are fixedly connected to the side wall of the filter body (2) away from the cleaning mechanism.

2. The biological filter for crab farming in hydrogen-rich water according to claim 1, characterized in that: The aeration pipe (14) includes an air pipe (1401), a second connecting pipe (1402), and several nozzles (1403). One end of the air pipe (1401) is fixedly connected to one side of the outer surface of the second connecting pipe (1402). The second connecting pipe (1402) has a mesh structure, and the nodes of the mesh structure of the second connecting pipe (1402) are fixedly connected to the corresponding nozzles (1403).

3. A biological filter for crab farming in hydrogen-rich water according to claim 1, characterized in that: The cleaning mechanism includes multiple connecting blocks (18) fixedly connected to the side wall of the filter body (2). One end of each of the multiple connecting blocks (18) is fixedly connected to a spring (17). One end of each of the multiple springs (17) is fixedly connected to a scraper (16). The upper surface of the scraper (16) is slidably connected to the lower surface of the lower support plate (11), and the lower surface of the scraper (16) is slidably connected to the bottom of the inner wall of the filter body (2).

4. A biological filter for crab farming in hydrogen-rich water according to claim 1, characterized in that: The lower surface of the filter body (2) is fixedly connected to a base (8) and a sewage discharge box (9). The sewage discharge box (9) is connected to the bottom of the filter body (2), and a sewage discharge trough (19) is provided inside the sewage discharge box (9).

5. A biological filter for raising crabs in hydrogen-rich water according to claim 4, characterized in that: A sewage pump (21) is fixedly installed inside the sewage discharge tank (19). The discharge port of the sewage pump (21) is fixedly connected to a sewage pipe (22). One end of the sewage pipe (22) extends through to the outside of the filter body (2).

6. A biological filter for raising crabs in hydrogen-rich water according to claim 2, characterized in that: The end of the vent pipe (1401) away from the second connecting pipe (1402) extends through to the outside of the filter body (2) and is fixedly connected to the air inlet pipe (20). The side wall of the filter body (2) is provided with a perforation (10) that matches the vent pipe (1401).

7. A biological filter for raising crabs in hydrogen-rich water according to claim 1, characterized in that: The inlet of the filter body (2) is fixedly connected to a conduit (6). A one-way valve (7) is fixedly installed at one end of the conduit (6) near the filter body (2). A water pump (5) is fixedly installed at the other end of the conduit (6) away from the filter body (2). The inlet of the water pump (5) is fixedly connected to a first connecting pipe (4). The first connecting pipe (4) is a multi-port pipe, and multiple ports of the first connecting pipe (4) are fixedly connected to a drain pipe (3). One end of the drain pipe (3) is fixedly connected to the sewage outlet of the crab raising box (1).

8. A biological filter for crab farming in hydrogen-rich water according to claim 1, characterized in that: An inspection port (23) is provided on the front of the filter body (2) and at the position corresponding to the packing layer (13). A safety door (24) is installed on the side of the inspection port (23) with a sealed hinge.

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