A kind of landfill leachate ammonia nitrogen treatment equipment

Abstract

The present invention relates to the field of leachate treatment technology, specifically a landfill leachate ammonia nitrogen treatment equipment, including a frame, and also including: an aerobic nitrification reaction structure connected to the frame; two groups of anaerobic denitrification reaction structures connected to the frame; a bubble scrubbing spoiler structure connected to the frame, the bubble scrubbing spoiler structure including an active telescopic frame, the movable end of the active telescopic frame is fixedly connected to a first rotating head, the first rotating head is connected to an air supply part, the first rotating head is rotatably connected to a second rotating head, the second rotating head is fixedly connected to a hollow frame, the hollow frame is hinged with a change-direction jet part, the change-direction jet part is connected to a swing drive part, and the change-direction jet part is connected to a pitch drive part. The present invention disperses the bacterial colony attached to the inner wall of the aerobic nitrification reaction structure and completes the stirring of the leachate, while ensuring sufficient oxygen supply to the bacterial colony, improving the speed of the aerobic nitrification reaction, thereby improving the treatment efficiency of the present invention for the leachate.

Description

Technical Field

[0001] The invention relates to the technical field of leachate treatment, in particular to a device for treating ammonia nitrogen in garbage leachate. Background Art

[0002] The sanitary landfill process of urban domestic waste will produce a large amount of leachate, which is a high-concentration organic wastewater with complex components and typical characteristics of high pollution load and comprehensive pollution. It has large water volume, deep color, complex water quality, high organic matter concentration, and high ammonia nitrogen concentration.

[0003] Ammonia nitrogen treatment methods can be divided into physical and chemical methods and biochemical combined methods. When using the biochemical combined method to treat landfill leachate, aerobic bacteria tend to adhere to the inner wall of the container, preventing the aerobic bacteria from fully contacting the landfill leachate and oxygen, thereby reducing the processing efficiency of the equipment. Summary of the Invention

[0004] The object of the present invention is to provide a device for treating ammonia nitrogen in landfill leachate to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A landfill leachate ammonia nitrogen treatment device, comprising a frame and:

[0007] an aerobic nitrification reaction structure connected to the rack;

[0008] Two sets of anaerobic denitrification reaction structures connected to the rack;

[0009] A bubble brushing spoiler structure connected to the frame, the bubble brushing spoiler structure includes an active telescopic frame fixedly connected to the frame, the movable end of the active telescopic frame is fixedly connected to a first rotating head, the first rotating head is connected to an air supply part, the first rotating head is rotatably connected to a second rotating head, the second rotating head is fixedly connected to a hollow frame, the first rotating head is communicated with the hollow frame through the second rotating head, the hollow frame is hinged with multiple groups of direction-changing jet parts, the direction-changing jet parts are connected to a swing drive part, and the direction-changing jet parts are connected to a pitch drive part.

[0010] As a further improvement of the present invention: the aerobic nitrification reaction structure includes an open tank fixedly connected to the frame, an air distribution head connected to the air supply part is fixedly installed at the bottom of the open tank, two groups of first membrane bodies are fixedly connected to the open tank, a cavity is provided between the first membrane body and the open tank, the anaerobic denitrification reaction structure is connected to the cavity, a second membrane body is fixedly installed at the lower part of the open tank, and the second membrane body is fixedly connected to a manual valve fixedly connected to the open tank.

[0011] As a further improvement of the present invention: the anaerobic denitrification reaction structure includes a pump body fixedly connected to the open tank, one end of the pump body extends into the cavity, the other end of the pump body is fixedly connected to the anaerobic tank, the top of the anaerobic tank is threadedly connected to a cover body, the cover body is fixedly connected to a one-way air outlet valve, a mesh plate is fixedly installed in the middle of the anaerobic tank, a shell filler layer is provided above the mesh plate, an overflow pipe is provided above the shell filler layer, the overflow pipe is connected to the anaerobic tank, and the outlet end of the overflow pipe opens toward the top of the open tank.

[0012] As a further improvement of the present invention: the air supply part includes an air pump fixedly connected to the frame, the air pump is fixedly connected to a three-way pipe fitting, the three-way pipe fitting is fixedly connected to the air distribution head through a bend, the three-way pipe fitting is fixedly connected to a control valve, the control valve is fixedly connected to a hose, and the hose is fixedly connected to the first rotating head.

[0013] As a further improvement of the present invention: the directional jet part includes an air guide shell hinged to the hollow frame, the air guide shell is fixedly connected to two groups of protruding shafts, the protruding shafts are slidably connected to the pitch drive part, the air guide shell is hinged to a rotating nozzle, the air guide shell is fixedly connected to a fixed frame, the fixed frame is fixedly connected to a torque reset assembly, and the rotating nozzle is fixedly connected to an arc plate slidably connected to the swing drive part.

[0014] As a further improvement of the present invention: the pitch drive unit includes a first active telescopic rod fixedly connected to the moving end of the active telescopic frame, the moving end of the first active telescopic rod is fixedly connected to a limit plate, the limit plate is rotatably connected to a groove wheel, the groove wheel is fixedly connected to a lifting frame, the lifting frame is fixedly connected to multiple groups of hollow sleeves, each group of hollow sleeves is slidably connected to a group of protruding shafts, each group of air guide shells is slidably connected to two groups of hollow sleeves, and the groove wheel is slidably connected to the hollow frame.

[0015] As a further improvement of the present invention: the swing driving part includes multiple groups of wheel frames fixedly connected to the hollow frame, the multiple groups of wheel frames are commonly slidably connected to the rotating wheel, the rotating wheel is fixedly connected to a top pressure piece slidably connected to the arc plate, the rotating wheel is fixedly connected to the rotating frame, and multiple groups of elastic telescopic frames are fixedly installed on the rotating frame, the elastic telescopic frames are movably connected to a groove plate fixedly connected to the hollow frame, and the movable end of the elastic telescopic frame is fixedly connected to a hand pressure frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When in use, the leachate is poured into the aerobic nitrification reaction structure and nitrite bacteria and nitrate bacteria are added to the aerobic nitrification reaction structure. The anaerobic denitrification reaction structure extracts the leachate after nitrification treatment and performs denitrification treatment to produce nitrogen gas, thereby completing the treatment of ammonia nitrogen in the leachate. During this period, the active telescopic frame drives the first rotating head to descend, so that the direction-changing jet part falls into the leachate in the aerobic nitrification reaction structure, and then the swing drive part drives the direction-changing jet part to rotate a certain angle, and then the pitch drive part adjusts the pitch angle of the direction-changing jet part. At this time, as the supply The air supply of the air section to the first rotating head, the high-pressure air passes through the second rotating head, the hollow frame, and the redirecting jet section in sequence, and is finally sprayed into the aerobic nitrification reaction structure and impacts the inner wall of the aerobic nitrification reaction structure, thereby flushing away the bacterial colonies attached to the inside of the aerobic nitrification reaction structure, and under the reaction of the ejected air bubbles, the redirecting jet section drives the hollow frame to rotate to stir the leachate. At this time, the first rotating head and the second rotating head are in a state of rotation and maintaining communication. As the active telescopic frame expands and contracts, the position of the inner wall of the aerobic nitrification reaction structure that is impacted changes. The present invention uses a bubble scrubbing turbulence structure to inflate the aerobic nitrification reaction structure, thereby flushing away the bacterial colonies attached to the inner wall of the aerobic nitrification reaction structure and completing the stirring of the leachate. Under the action of the rising bubbles, the leachate is longitudinally flipped, thereby facilitating the rapid and uniform dispersion of the bacterial colonies in the leachate of the aerobic nitrification reaction structure, while ensuring sufficient oxygen supply to the bacterial colonies, increasing the speed of the aerobic nitrification reaction, and thus improving the leachate treatment efficiency of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0021] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0022] Figure 5 For the present invention Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the coordination between the direction-changing air-jet part and the hollow sleeve of the present invention;

[0024] Figure 7 This is a schematic structural diagram of the coordination between the direction-changing air jet portion and the hollow sleeve of the present invention;

[0025] Figure 8This is a schematic diagram of the structure of the sheave, lifting frame, and hollow sleeve of the present invention;

[0026] Figure 9 It is a schematic structural diagram of the coordination of the open tank, the air distribution head, the first membrane body, the second membrane body and the manual valve of the present invention.

[0027] In the figure: 1. frame; 2. aerobic nitrification reaction structure; 3. anaerobic denitrification reaction structure; 4. bubble scrubbing and turbulence structure; 5. active telescopic frame; 6. air supply unit; 7. first rotating head; 8. second rotating head; 9. hollow frame; 10. direction-changing jet unit; 11. swing drive unit; 12. pitch drive unit; 13. open tank; 14. air distribution head; 15. first membrane body; 16. second membrane body; 17. manual valve; 18. pump body; 19. anaerobic tank; 20. cover body; 21. one-way air outlet valve; 22. screen plate; 23. , shell packing layer; 24, overflow pipe; 25, air pump; 26, three-way pipe fitting; 27, elbow; 29, control valve; 30, hose; 31, air guide shell; 32, protruding shaft; 33, rotating nozzle; 34, fixed frame; 35, torque reset assembly; 36, arc plate; 37, first active telescopic rod; 38, limit plate; 39, groove wheel; 40, lifting frame; 41, hollow sleeve; 42, wheel frame; 43, rotating wheel; 44, top pressure piece; 45, rotating frame; 46, elastic telescopic frame; 47, groove plate; 48, hand pressure frame. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0029] Example 1, see Figures 1 to 9 As shown, a landfill leachate ammonia nitrogen treatment device includes a frame 1 and further includes:

[0030] an aerobic nitrification reaction structure 2 connected to the frame 1;

[0031] Two groups of anaerobic denitrification reaction structures 3 connected to the rack 1;

[0032] The bubble brushing spoiler structure 4 is connected to the frame 1, and the bubble brushing spoiler structure 4 includes an active telescopic frame 5 fixedly connected to the frame 1, the movable end of the active telescopic frame 5 is fixedly connected to the first rotating head 7, the first rotating head 7 is connected to the air supply part 6, the first rotating head 7 is rotatably connected to the second rotating head 8, the second rotating head 8 is fixedly connected to the hollow frame 9, the first rotating head 7 is communicated with the hollow frame 9 through the second rotating head 8, the hollow frame 9 is hinged with multiple groups of changing direction jet parts 10, the changing direction jet part 10 is connected to the swing drive part 11, and the changing direction jet part 10 is connected to the pitch drive part 12.

[0033] When in use, the leachate is poured into the aerobic nitrification reaction structure 2 and nitrite bacteria and nitrate bacteria are added to the aerobic nitrification reaction structure 2. The anaerobic denitrification reaction structure 3 extracts the leachate after nitrification treatment and performs denitrification treatment to produce nitrogen gas, thereby completing the treatment of ammonia nitrogen in the leachate. During this period, the active telescopic frame 5 drives the first rotating head 7 to descend, so that the direction-changing jet part 10 falls into the leachate in the aerobic nitrification reaction structure 2, and then the swing drive part 11 drives the direction-changing jet part 10 to rotate a certain angle, and then the pitch drive part 12 adjusts the pitch angle of the direction-changing jet part 10. At this time, as the supply The air section 6 supplies air to the first rotating head 7, and the high-pressure air passes through the second rotating head 8, the hollow frame 9, and the reversing jet section 10 in sequence, and is finally sprayed into the aerobic nitrification reaction structure 2 and impacts the inner wall of the aerobic nitrification reaction structure 2, thereby flushing away the bacterial flora attached to the inside of the aerobic nitrification reaction structure 2. Under the reaction of the ejected air bubbles, the reversing jet section 10 drives the hollow frame 9 to rotate to stir the leachate. At this time, the first rotating head 7 and the second rotating head 8 are in a rotating and connected state. As the active telescopic frame 5 extends and retracts, the position of the inner wall of the aerobic nitrification reaction structure 2 that is impacted changes. The present invention inflates the aerobic nitrification reaction structure 2 by means of the bubble scrubbing disturbance structure 4, thereby dispersing the bacterial colonies attached to the inner wall of the aerobic nitrification reaction structure 2 and completing the stirring of the leachate. Under the action of the rising bubbles, the leachate is longitudinally flipped, thereby facilitating the rapid and uniform dispersion of the bacterial colonies in the leachate of the aerobic nitrification reaction structure 2, while ensuring sufficient oxygen supply to the bacterial colonies, increasing the speed of the aerobic nitrification reaction, and thus improving the leachate treatment efficiency of the present invention.

[0034] In one embodiment of the present invention, the aerobic nitrification reaction structure 2 includes an open tank 13 fixedly connected to the frame 1. An air distribution head 14 connected to the air supply unit 6 is fixedly mounted at the bottom of the open tank 13. Two sets of first membranes 15 are fixedly mounted to the open tank 13. A cavity (not shown) is defined between the first membranes 15 and the open tank 13. The anaerobic denitrification reaction structure 3 communicates with the cavity. A second membrane 16 is fixedly mounted at the bottom of the open tank 13. A manual valve 17, fixedly mounted to the second membrane 16 and also connected to the open tank 13, is attached to the second membrane 16. The first and second membranes 15, 16 are made of the same material and are both used to intercept nitrate and nitrite bacteria. The air supply unit 6 inflates the leachate in the open tank 13 by injecting air through the air distribution head 14, causing it to emit bubbles, thereby supplying oxygen to the leachate. By opening the manual valve 17 and allowing the second membrane 16 to filter, the leachate in the open tank 13 is discharged and the nitrate and nitrite bacteria in the leachate are intercepted.

[0035] In one case of this embodiment, the anaerobic denitrification reaction structure 3 includes a pump body 18 fixedly connected to the open tank 13, one end of the pump body 18 extends into the cavity, and the other end of the pump body 18 is fixedly connected to an anaerobic tank 19, which is fixedly connected to the frame 1, and a cover body 20 is threadedly connected to the top of the anaerobic tank 19, and the cover body 20 is fixedly connected to a one-way air outlet valve 21, and a mesh plate 22 is fixedly installed in the middle of the anaerobic tank 19, a shell filler layer 23 is provided above the mesh plate 22, and an overflow pipe 24 is provided above the shell filler layer 23, and the overflow pipe 24 is connected to the anaerobic tank 19, and the outlet end of the overflow pipe 24 is open toward the top of the open tank 13. The leachate drawn by the pump body 18 enters the anaerobic tank 19 and contacts the biofilm on the shell filler layer 23 to undergo a denitrification reaction. During this period, the leachate passing through the shell filler layer 23 flows back into the open tank 13 to adjust the pH value of the leachate in the open tank 13 to avoid the pH value of the leachate in the open tank 13 being too low, and the nitrogen generated by the denitrification reaction is discharged from the one-way air outlet valve 21.

[0036] In one aspect of this embodiment, the air supply unit 6 includes an air pump 25 fixedly connected to the frame 1. The air pump 25 is fixedly connected to a three-way pipe fitting 26. The three-way pipe fitting 26 is fixedly connected to the air distribution head 14 via an elbow 27. The three-way pipe fitting 26 is fixedly connected to a control valve 29. The control valve 29 is fixedly connected to a hose 30. The hose 30 is fixedly connected to the first rotating head 7. When the control valve 29 is opened, compressed air from the air pump 25 is supplied to the elbow 27 and the hose 30, respectively, thereby simultaneously supplying air to the first rotating head 7 and the air distribution head 14.

[0037] In one aspect of this embodiment, the reversible jet unit 10 includes an air guide housing 31 hingedly connected to the hollow frame 9. The air guide housing 31 is fixedly connected to two sets of protruding shafts 32, which are slidably connected to the pitch drive unit 12. A rotating nozzle 33 is hingedly connected to the air guide housing 31. The air guide housing 31 is fixedly connected to a fixed frame 34, which is fixedly connected to a torque reset assembly 35. The torque reset assembly 35 includes a protective shell fixedly connected to the fixed frame 34. A torsion spring fixedly mounted within the protective shell is fixedly connected to the rotating nozzle 33. The rotating nozzle 33 is fixedly connected to an arc plate 36 slidably connected to the swing drive unit 11. Air introduced into the hollow frame 9 flows into the rotating nozzle 33 through the air guide housing 31, causing the rotating nozzle 33 to perform jetting operations.

[0038] In one aspect of this embodiment, the pitch drive unit 12 includes a first active telescopic rod 37 fixedly connected to the movable end of the active telescopic frame 5. The movable end of the first active telescopic rod 37 is fixedly connected to a limit plate 38. The limit plate 38 is rotatably connected to a sheave 39. The sheave 39 is fixedly connected to a lifting frame 40. The lifting frame 40 is fixedly connected to multiple sets of hollow sleeves 41. Each set of hollow sleeves 41 is slidably connected to a set of protruding shafts 32. Each set of air guide housings 31 is slidably connected to two sets of hollow sleeves 41. The sheave 39 is slidably connected to the hollow frame 9. The first active telescopic rod 37 adjusts the height of the sheave 39 by driving the limit plate 38 to move. Driven by the lifting frame 40, the hollow sleeves 41 move, thereby adjusting the pitch angle of the air guide housing 31 by driving the protruding shafts 32 to move.

[0039] Example 2, based on Example 1, refer to Figures 3 to 5 The swing drive unit 11 includes multiple groups of wheel frames 42 fixedly connected to the hollow frame 9. The multiple groups of wheel frames 42 are slidably connected to rotating wheels 43. The rotating wheels 43 are fixedly connected to a top pressure piece 44 slidably connected to the arc plate 36. The rotating wheels 43 are fixedly connected to a rotating frame 45. Multiple groups of elastic telescopic frames 46 are fixedly installed on the rotating frame 45. The elastic telescopic frames 46 are movably connected to a slot plate 47 fixedly connected to the hollow frame 9. The movable ends of the elastic telescopic frames 46 are fixedly connected to a hand pressure frame 48. A person manually presses the hand pressure frame 48 and then rotates the hand pressure frame 48, causing the elastic telescopic frames 46 to reset themselves, so that the movable ends of each group of elastic telescopic frames 46 are re-engaged in the slot plate 47. During this period, the elastic telescopic frames 46 drive the rotating frame 45, and the rotating wheels 43 drive the top pressure piece 44 to squeeze the arc plate 36, so that the arc plate 36 drives the rotating nozzle 33 to rotate, thereby adjusting the direction of the rotating nozzle 33.

[0040] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions, and alterations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A landfill leachate ammonia nitrogen treatment device, comprising a frame, characterized in that: Also includes: an aerobic nitrification reaction structure connected to the rack; Two sets of anaerobic denitrification reaction structures connected to the rack; The air brushing spoiler structure connected to the frame, the air brushing spoiler structure includes an active telescopic frame fixedly connected to the frame, the movable end of the active telescopic frame is fixedly connected to the first rotating head, the first rotating head is connected to the air supply part, the first rotating head is rotatably connected to the second rotating head, the second rotating head is fixedly connected to the hollow frame, the first rotating head is communicated with the hollow frame through the second rotating head, the hollow frame is hinged with multiple groups of direction-changing jet parts, the direction-changing jet parts are connected to the swing drive part, the direction-changing jet part is connected to the pitch drive part, the direction-changing jet part includes an air guide shell hinged to the hollow frame, the air guide shell is fixedly connected to two groups of protruding shafts, the protruding shafts are slidably connected to the pitch drive part, the air guide shell is hinged with a rotating nozzle, the air guide shell is fixedly connected to the fixed frame, the fixed frame is fixedly connected to the torsion reset assembly, the rotating nozzle is fixedly connected to the swing The driving part is slidingly connected to the arc plate, and the pitch driving part includes a first active telescopic rod fixedly connected to the movable end of the active telescopic frame, the movable end of the first active telescopic rod is fixedly connected to the limiting plate, the limiting plate is rotatably connected to the groove wheel, the groove wheel is fixedly connected to the lifting frame, the lifting frame is fixedly connected to multiple groups of hollow sleeves, each group of hollow sleeves is slidably connected to a group of protruding shafts, each group of air guide shells is slidably connected to two groups of hollow sleeves, the groove wheel is slidably connected to the hollow frame, and the swing driving part includes multiple groups of wheel frames fixedly connected to the hollow frame, and the multiple groups of wheel frames are commonly slidably connected to the rotating wheel, the rotating wheel is fixedly connected to a top pressure piece slidably connected to the arc plate, the rotating wheel is fixedly connected to the rotating frame, and multiple groups of elastic telescopic frames are fixedly installed on the rotating frame, the elastic telescopic frame is movably connected to the groove plate fixedly connected to the hollow frame, and the movable end of the elastic telescopic frame is fixedly connected to the hand pressure frame.

2. The ammonia nitrogen treatment equipment for landfill leachate according to claim 1, characterized in that: The aerobic nitrification reaction structure includes an open tank fixedly connected to the frame, an air distribution head connected to the air supply part is fixedly installed at the bottom of the open tank, two groups of first membrane bodies are fixedly connected to the open tank, a cavity is provided between the first membrane body and the open tank, the anaerobic denitrification reaction structure is connected to the cavity, a second membrane body is fixedly installed at the lower part of the open tank, and the second membrane body is fixedly connected to a manual valve fixedly connected to the open tank.

3. The ammonia nitrogen treatment equipment for landfill leachate according to claim 2, characterized in that: The anaerobic denitrification reaction structure includes a pump body fixedly connected to an open tank, one end of the pump body extends into the cavity, the other end of the pump body is fixedly connected to the anaerobic tank, the top of the anaerobic tank is threadedly connected to a cover body, the cover body is fixedly connected to a one-way air outlet valve, a mesh plate is fixedly installed in the middle of the anaerobic tank, a shell filler layer is provided above the mesh plate, an overflow pipe is provided above the shell filler layer, the overflow pipe is connected to the anaerobic tank, and the outlet end of the overflow pipe opens toward the top of the open tank.

4. The ammonia nitrogen treatment equipment for landfill leachate according to claim 2, characterized in that: The air supply part includes an air pump fixedly connected to the frame, the air pump is fixedly connected to a three-way pipe fitting, the three-way pipe fitting is fixedly connected to the air distribution head through a bend, the three-way pipe fitting is fixedly connected to a control valve, the control valve is fixedly connected to a hose, and the hose is fixedly connected to the first rotating head.

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