Device for recycling breeding wastewater

Abstract

The utility model discloses a device for recycling breeding wastewater, which comprises a stepped frame, a grit chamber, a solid removal tank, an anaerobic tank and an aerobic tank are arranged on steps of the frame, a first water delivery pipe extending to the upper part of the solid removal tank is arranged at the top of the grit chamber, an arc-shaped sieve is arranged below the first water delivery pipe, and a second water delivery pipe is arranged below the arc-shaped sieve. And a solid collecting groove is formed in the bottom end of the arc-shaped sieve, a stirring rod is installed in the solid removing pool, and a chemical adding pipe is arranged on one side of the top of the solid removing pool. According to the utility model, a plurality of sewage treatment pools are arranged on the three-dimensional frame in a centralized manner, so that the space can be saved, the cost can be reduced, the distance between two adjacent units is reduced, the sewage conveying distance is reduced, the energy loss of sewage conveying is reduced, and the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to sewage treatment technology, and more specifically, to a device for recycling aquaculture wastewater. Background Art

[0002] At present, there are many treatment processes for industrial wastewater treatment, and each process is composed of different treatment units to form a wastewater treatment process. Due to the long treatment process and many combined units, the required equipment investment is large, the equipment utilization efficiency is low, and the equipment occupies a large area of ​​land and space.

[0003] For example, patent number CN208500512U discloses an anaerobic, anoxic and aerobic sewage treatment simulation device, which includes a water storage and grit tank, an infusion pipe, an anaerobic tank, an anoxic tank, an aerobic tank, a secondary grit tank, and a filter. The water storage and grit tank, the infusion pipe, the anaerobic tank, the anoxic tank, the aerobic tank, the secondary grit tank, and the filter are separately arranged, occupying a large area, and relatively long pipes need to be arranged between them for connection, which makes sewage transportation troublesome, results in large energy loss, and low transportation efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for recycling aquaculture wastewater in view of the shortcomings of the existing technology. Each sewage treatment tank is set on a vertical frame, avoiding the problems of large equipment occupation area and high equipment cost investment of the existing sewage treatment unit, while reducing the energy consumption of the sewage transportation link.

[0005] The utility model discloses a device for recycling aquaculture wastewater, comprising a stepped frame, on the steps of the frame, a grit chamber, a desolidification chamber, an anaerobic chamber and an aerobic chamber are sequentially arranged from top to bottom, a first water pipe extending to the top of the desolidification chamber is provided at the top of the grit chamber, an arc screen is provided below the first water pipe, a solid collecting groove is provided at the bottom of the arc screen, a stirring rod arranged transversely is rotatably installed in the desolidification chamber through a bearing seat, a driving device for driving the stirring rod to rotate is provided in the frame below the grit chamber, a dosing pipe is provided at one side of the top of the desolidification chamber, a second water pipe extending to the anaerobic chamber is connected to the top of the desolidification chamber, a third water pipe extending to the bottom of the aerobic chamber is connected to the top of the anaerobic chamber, a blower is provided in the frame, a plurality of aerators connected to the blower through an air duct are laid in the aerobic chamber, a sealing cover is provided at the top of the anaerobic chamber and the aerobic chamber, an exhaust pipe is provided on the sealing cover, and a fourth water pipe is provided at the top of the aerobic chamber.

[0006] Preferably, a partition is provided in the de-solidification tank, which divides the de-solidification tank into a flocculation chamber and an auxiliary coagulant chamber. Two dosing tubes connected to the flocculation chamber and the auxiliary coagulant chamber are provided on the wall of the de-solidification tank. Both the flocculation chamber and the auxiliary coagulant chamber are provided with stirring rods, which are driven to rotate by a driving device, and a first water through hole is provided on the partition.

[0007] Preferably, a V-shaped groove is provided on the top of the coagulation aid chamber, an opening is provided at the bottom of the V-shaped groove, a filter is provided at the opening, and the V-shaped groove is arranged above the first water hole; the second water pipe is connected to the inner cavity of the V-shaped groove.

[0008] Preferably, the V-shaped groove is filled with a pebble filtering structure.

[0009] Preferably, the arc screen is arranged above the V-shaped groove.

[0010] Preferably, the driving device includes a driving motor and a belt transmission assembly.

[0011] Preferably, a first funnel and a second funnel surrounding the first funnel are provided at the bottom of the grit chamber, and a discharge opening of the second funnel is larger than that of the first funnel.

[0012] Preferably, a third funnel is provided at the bottom of the flocculation chamber and the coagulant-aiding chamber, and the discharge ports of the second funnel and the third funnel are connected to a solid discharge pipe, and a valve is provided on the solid discharge pipe.

[0013] Preferably, a plurality of aerators connected to the blower through air ducts are laid at the bottom of the aerobic tank, and the third water pipe extends to the top of the aerators; and anaerobic microbial three-dimensional fillers and aerobic microbial three-dimensional fillers are respectively provided in the anaerobic tank and the aerobic tank.

[0014] Preferably, a secondary sedimentation tank and a disinfection tank are provided at the bottom of the frame, the secondary sedimentation tank is connected to the aerobic tank through a fourth water pipe, the disinfection tank and the secondary sedimentation tank are connected with a common wall, a second water hole is provided on the common pool wall of the disinfection tank and the secondary sedimentation tank, an ultraviolet lamp is provided in the disinfection tank, and a clean water outlet is provided on one side of the top of the disinfection tank.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) In the device for recycling aquaculture wastewater of the utility model, the sewage purification treatment tanks such as the grit chamber, the desolidification tank, the anaerobic tank, and the aerobic tank are arranged on a vertical frame and arranged in steps, and the control equipment such as the electric control box 35 is arranged in a hidden manner in the frame, so that the space is fully utilized, the occupied area is small, the equipment structure is compact, the manufacturing is simple, and the manufacturing cost is low;

[0017] (2) In the device for recycling aquaculture wastewater of the utility model, the wastewater can flow from top to bottom and pass through each sewage purification treatment tank in turn for treatment. There is no need to set up a water pump between two adjacent treatment tanks to transport the wastewater, thereby reducing the energy consumption of the sewage transportation link. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following will briefly introduce the drawings required for the description of the embodiment. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 This is a main structural stereogram of the device for recycling aquaculture wastewater of the utility model;

[0020] Figure 2 It is a rear structural stereogram of the device for recycling aquaculture wastewater of the utility model;

[0021] Figure 3 This is a structural front view of the device for recycling aquaculture wastewater of the utility model;

[0022] Figure 4 yes Figure 3 Structural cross-section view in the AA direction;

[0023] Figure 5 yes Figure 3 Structural cross-section view in the middle BB direction;

[0024] Figure 6 yes Figure 3 Structural cross-section view in the CC direction.

[0025] Among them: 1. frame; 2. grit chamber; 3. desolidification tank; 4. anaerobic tank; 5. aerobic tank; 6. first water pipe; 7. curved screen; 8. solid collecting tank; 9. stirring rod; 10. driving device; 11. third funnel; 12. dosing pipe; 13. second water pipe; 14. third water pipe; 15. blower; 16. aerator; 17. sealing cover; 18. exhaust pipe; 19. fourth water pipe; 20. partition; 21. flocculation chamber; 22. coagulation chamber; 23. V-shaped groove; 24. filter screen; 25. pebble filter structure; 26. first funnel; 28. second funnel; 29. ​​desolidification pipe; 30. secondary sedimentation tank; 31. disinfection tank; 32. ultraviolet lamp; 33. clean water outlet; 34. maintenance platform; 35. electric control box; 36. first water hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] The specific implementation of the utility model is as follows:

[0029] See also Figure 1-Figure 6 The utility model is a device for recycling aquaculture wastewater, comprising a stepped frame 1, on the steps of the frame 1 are arranged a grit chamber 2, a desolidification tank 3, an anaerobic tank 4 and an aerobic tank 5 in sequence from top to bottom, the top of the grit chamber 2 is provided with a first water pipe 6 extending to the top of the desolidification tank 3, the lower part of the first water pipe 6 is provided with an arc screen 7, the bottom end of the arc screen 7 is provided with a solid collecting groove 8, a transversely arranged stirring rod 9 is rotatably installed in the desolidification tank 3 through a bearing seat, a driving device 10 for driving the stirring rod 9 to rotate is provided in the frame 1 below the grit chamber 2, and a third drain is provided at the bottom of the desolidification tank 3. A bucket 11 is provided, a dosing pipe 12 is provided on one side of the top of the desolidification tank 3; the top of the desolidification tank 3 is connected with a second water pipe 13 extending into the anaerobic tank 4, the top of the anaerobic tank 4 is connected with a third water pipe 14 extending to the bottom of the aerobic tank 5, a blower 15 is provided in the frame 1, and a plurality of aerators 16 connected to the blower 15 through air ducts are laid in the aerobic tank 5, the tops of the anaerobic tank 4 and the aerobic tank 5 are both provided with sealing covers 17, the sealing covers 17 are provided with exhaust pipes 18, the top of the aerobic tank 5 is provided with a fourth water pipe 19, and an electric control box 35 is provided at the left end inside the frame 1.

[0030] In the device for recycling aquaculture wastewater, the sewage purification treatment tanks such as the grit chamber 2, the desolidification tank 3, the anaerobic tank 4, and the aerobic tank 5 are arranged on a vertical frame 1 and arranged in steps, and the control equipment such as the electric control box 35 is hidden in the frame 1, so that the space is fully utilized, the occupied area is small, the equipment structure is compact, the manufacturing is simple, and the manufacturing cost is low;

[0031] Moreover, wastewater can flow from top to bottom through each sewage purification treatment tank in turn for treatment. There is no need to install a water pump between two adjacent treatment tanks to transport wastewater, which reduces energy consumption in the sewage transportation link.

[0032] In the device for recycling aquaculture wastewater, after the wastewater passes through the grit chamber 2 for preliminary sedimentation, the upper sewage flows from the first water pipe 6 to the curved screen 7 for further filtration, and the floating objects on the wastewater are filtered out and collected in the solidification tank 8;

[0033] The filtered wastewater enters the solid removal tank 3, and flocculants and coagulants are added to the solid removal tank 3 through the dosing pipe 12 to remove solid particles and organic matter suspended in the water, and aggregate the solid particles and organic matter suspended in the water into larger particles, which are convenient for subsequent treatment and filtration. The solid particles settle downward, and the wastewater on the upper layer becomes clear, and then flows from the second water pipe 13 to the anaerobic tank 4 for treatment;

[0034] The anaerobic tank 4 can decompose organic matter in the wastewater. The microorganisms in the anaerobic tank 4 metabolize in an oxygen-deficient environment and decompose the organic matter in the wastewater into simpler compounds, thereby reducing the organic load in the wastewater;

[0035] The water in the anaerobic tank 4 then flows from the third water pipe 14 to the aerobic tank 5. There are a large number of aerobic microorganisms in the aerobic tank 5. These microorganisms decompose organic matter through metabolism to generate energy to maintain the life activities required for their growth and metabolism. At the same time, the microbial metabolism will oxidize the organic matter into harmless substances such as carbon dioxide, water and nitrogen compounds, thereby achieving the effect of purifying water quality.

[0036] Furthermore, a partition 20 is provided in the de-solidification pool 3, and the partition divides the de-solidification pool 3 into a flocculation chamber 21 and an auxiliary coagulant chamber 22. Two dosing tubes 12 connected with the flocculation chamber 21 and the auxiliary coagulant chamber 22 are provided on the pool wall of the de-solidification pool 3. A stirring rod 9 is provided in each of the flocculation chamber 21 and the auxiliary coagulant chamber 22. The stirring rod 9 in the flocculation chamber 21 and the auxiliary coagulant chamber 22 is driven to rotate by a driving device 10. A first water through hole 36 is provided on the partition 20. The driving device 10 includes a driving motor and a belt drive assembly. In the present embodiment, by arranging the stirring rod 9 in the flocculation chamber 21 and the auxiliary coagulant chamber 22, and driving the stirring rod 9 to rotate by the driving motor and the belt drive assembly, the wastewater can be fully mixed with the coagulant and flocculant, and the sedimentation rate of the suspended particles in the block wastewater can be reduced.

[0037] Furthermore, a V-shaped groove 23 is provided at the top of the coagulation-aiding chamber 22, an opening is provided at the bottom end of the V-shaped groove 23, a filter screen 24 is provided at the opening, and the V-shaped groove 23 is arranged above the first water hole; the second water delivery pipe 13 is connected to the inner cavity of the V-shaped groove 23. In this embodiment, a V-shaped groove 23 is provided at the upper part of the coagulation-aiding chamber 22, and the filter screen 24 on the V-shaped groove 23 plays the role of filtering the turbid liquid in the coagulation-aiding chamber 22, so that the water in the V-shaped groove 23 is clean water, and the water in the V-shaped groove 23 can be directly discharged into the anaerobic tank 4 for purification.

[0038] Furthermore, the V-shaped groove 23 is filled with a pebble filter structure 25 , and the pebble filter structure 25 plays a role in further filtering the water entering the V-shaped groove 23 .

[0039] Furthermore, the arc screen 7 is arranged above the V-shaped groove 23 .

[0040] Furthermore, the bottom of the grit chamber 2 is provided with a first funnel 26 and a second funnel 28 surrounding the first funnel 26, and the discharge port of the second funnel 28 is larger than the discharge port of the first funnel 26. In this embodiment, the discharge port size of the second funnel 28 is set to be larger than the discharge port size of the first funnel 26, so that when the solid particles in the grit chamber 2 need to be discharged, the speed of the liquid-solid mixture flowing downward from the discharge port of the second funnel 28 is greater than the speed flowing out from the discharge port of the first funnel 26, so that a negative pressure is formed in the cavity between the second funnel 28 and the first funnel 26, and the speed of the solid-liquid mixture in the first funnel 26 being discharged downward from the discharge port of the first funnel 26 can be accelerated under the action of atmospheric pressure, so as to avoid blockage of the discharge port of the first funnel 26.

[0041] Furthermore, the bottom of the flocculation chamber 21 and the coagulant-aiding chamber 22 are both provided with a third funnel 11 , and the discharge ports of the second funnel 28 and the third funnel 11 are both connected with a solid discharge pipe 29 , and a valve is provided on the solid discharge pipe 29 .

[0042] Furthermore, a plurality of aerators 16 connected to the blower 15 through air ducts are laid at the bottom of the aerobic tank 5, and the third water pipe 14 extends to the top of the aerator 16; the anaerobic tank 4 and the aerobic tank 5 are respectively provided with anaerobic microbial three-dimensional fillers and aerobic microbial three-dimensional fillers, which are conventional fillers on the market.

[0043] Furthermore, a secondary sedimentation tank 30 and a disinfection tank 31 are provided at the bottom of the frame 1. The secondary sedimentation tank 30 and the disinfection tank 31 are arranged side by side. The secondary sedimentation tank 30 is connected to the aerobic tank 5 through a fourth water pipe 19. The disinfection tank 31 and the secondary sedimentation tank 30 are connected to the same wall. A second water hole is provided on the common pool wall of the disinfection tank 31 and the secondary sedimentation tank 30. An ultraviolet lamp tube 32 is provided in the disinfection tank 31. A clean water outlet 33 is provided on one side of the top of the disinfection tank 31.

[0044] Furthermore, the frame 1 has 5 supporting steps, the grit tank 2, desolidification tank 3, anaerobic tank 4 and aerobic tank 5 are arranged on the first, second, third and fourth steps from top to bottom, respectively, the secondary sedimentation tank 30 and the disinfection tank 31 are arranged on the fifth step, and the sides of the 4 supporting steps on the upper part of the frame 1 are provided with maintenance platforms 34, and the height difference of the diameter of each maintenance platform is 600mm. The length, width and height of the grit tank 2, desolidification tank 3, anaerobic tank 4 and aerobic tank 5 are 2000mm, 1200mm and 1200mm respectively.

[0045] Working principle:

[0046] After the wastewater is initially precipitated in the grit chamber 2, the upper sewage flows from the first water pipe 6 to the curved screen 7 for further filtration, and the floating objects on the wastewater are filtered out and collected in the solidification tank 8;

[0047] The filtered wastewater enters the solid removal tank 3, and flocculants and coagulants are added to the solid removal tank 3 through the dosing pipe 12 to remove solid particles and organic matter suspended in the water, and aggregate the solid particles and organic matter suspended in the water into larger particles, which are convenient for subsequent treatment and filtration. The solid particles settle downward, and the wastewater on the upper layer becomes clear, and then flows from the second water pipe 13 to the anaerobic tank 4 for treatment;

[0048] The anaerobic tank 4 can decompose organic matter in the wastewater. The microorganisms in the anaerobic tank 4 metabolize in an oxygen-deficient environment and decompose the organic matter in the wastewater into simpler compounds, thereby reducing the organic load in the wastewater;

[0049] The water in the anaerobic tank 4 then flows from the third water pipe 14 to the aerobic tank 5. There are a large number of aerobic microorganisms in the aerobic tank 5. These microorganisms metabolize and decompose organic matter to generate energy to maintain the life activities required for their growth and metabolism. At the same time, the microbial metabolism will oxidize the organic matter into harmless substances such as carbon dioxide, water and nitrogen compounds, thereby achieving the effect of purifying water quality.

[0050] The water in the aerobic pool 5 is then transported from the fourth water pipe 19 to the secondary sedimentation tank 30 for secondary sedimentation, and the upper clean water flows into the disinfection tank 31 for ultraviolet light disinfection and sterilization, and can be transported from the clean water outlet 33 to the breeding pond.

[0051] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for recycling aquaculture wastewater, characterized in that: The invention comprises a stepped frame (1), wherein a grit chamber (2), a desolidification chamber (3), an anaerobic chamber (4) and an aerobic chamber (5) are arranged in sequence from top to bottom on the steps of the frame (1); a first water pipe (6) extending to the top of the desolidification chamber (3) is provided at the top of the grit chamber (2); an arc-shaped screen (7) is provided below the first water pipe (6); a solid collecting groove (8) is provided at the bottom end of the arc-shaped screen (7); a transversely arranged stirring rod (9) is rotatably mounted in the desolidification chamber (3) via a bearing seat; a driving device (10) for driving the stirring rod (9) to rotate is provided in the frame (1) below the grit chamber (2); the desolidification chamber (3) A dosing pipe (12) is provided on one side of the top; the top of the desolidification tank (3) is connected to a second water pipe (13) extending into the anaerobic tank (4); the top of the anaerobic tank (4) is connected to a third water pipe (14) extending into the bottom of the aerobic tank (5); a blower (15) is provided in the frame (1); a plurality of aerators (16) connected to the blower (15) via air ducts are provided in the aerobic tank (5); the tops of the anaerobic tank (4) and the aerobic tank (5) are both provided with sealing covers (17); the sealing covers (17) are provided with exhaust pipes (18); and the top of the aerobic tank (5) is provided with a fourth water pipe (19).

2. The device for recycling aquaculture wastewater according to claim 1, characterized in that: A partition (20) is provided in the desolidification tank (3), and the partition divides the desolidification tank (3) into a flocculation chamber (21) and an auxiliary coagulant chamber (22). Two dosing pipes (12) connected to the flocculation chamber (21) and the auxiliary coagulant chamber (22) are provided on the wall of the desolidification tank (3). A stirring rod (9) is provided in each of the flocculation chamber (21) and the auxiliary coagulant chamber (22). The stirring rod (9) in the flocculation chamber (21) and the auxiliary coagulant chamber (22) is driven to rotate by a driving device (10), and a first water passage hole is provided on the partition (20).

3. A device for recycling aquaculture wastewater according to claim 2, characterized in that: A V-shaped groove (23) is provided at the top of the coagulation aid chamber (22), an opening is provided at the bottom end of the V-shaped groove (23), a filter screen (24) is provided at the opening, and the V-shaped groove (23) is arranged above the first water hole; the second water pipe (13) is connected to the inner cavity of the V-shaped groove (23).

4. The device for recycling aquaculture wastewater according to claim 3, characterized in that: The V-shaped groove (23) is filled with a pebble filtering structure (25).

5. The device for recycling aquaculture wastewater according to claim 3, characterized in that: The arc-shaped screen (7) is arranged above the V-shaped groove (23).

6. The device for recycling aquaculture wastewater according to claim 1, characterized in that: The driving device (10) comprises a driving motor and a belt transmission assembly.

7. The device for recycling aquaculture wastewater according to claim 5, characterized in that: The bottom of the grit chamber (2) is provided with a first funnel (26) and a second funnel (28) arranged around the first funnel (26); a discharge opening of the second funnel (28) is larger than a discharge opening of the first funnel (26).

8. The device for recycling aquaculture wastewater according to claim 7, characterized in that: The bottom of the flocculation chamber (21) and the coagulant-aiding chamber (22) are both provided with a third funnel (11), and the discharge ports of the second funnel (28) and the third funnel (11) are both connected with a solid discharge pipe (29), and a valve is provided on the solid discharge pipe (29).

9. The device for recycling aquaculture wastewater according to claim 1, characterized in that: A plurality of aerators (16) connected to the blower (15) through air ducts are laid at the bottom of the aerobic tank (5), and the third water pipe (14) extends to the top of the aerator (16); and anaerobic microbial three-dimensional fillers and aerobic microbial three-dimensional fillers are respectively provided in the anaerobic tank (4) and the aerobic tank (5).

10. The device for recycling aquaculture wastewater according to claim 9, characterized in that: A secondary sedimentation tank (30) and a disinfection tank (31) are provided at the bottom of the frame (1); the secondary sedimentation tank (30) is connected to the aerobic tank (5) via a fourth water delivery pipe (19); the disinfection tank (31) and the secondary sedimentation tank (30) are connected by a common wall; a second water hole is provided on the common pool wall of the disinfection tank (31) and the secondary sedimentation tank (30); an ultraviolet lamp (32) is provided in the disinfection tank (31); and a clean water outlet (33) is provided on one side of the top of the disinfection tank (31).

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