CN210528519U

CN210528519U - Micro-nano aeration system for landfill leachate treatment

Info

Publication number: CN210528519U
Application number: CN201920936384.6U
Authority: CN
Inventors: 闫陶军; 赵伟亮
Original assignee: Huanya Tianjin Environmental Protection Technology Co ltd
Current assignee: Huanya Tianjin Environmental Protection Technology Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-05-15
Anticipated expiration: 2029-06-20

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a micro-nano aeration system for garbage leachate treatment, which can prolong the retention time of bubbles in sewage and the adsorption time by discharging micro-bubbles into the sewage, increase the number of the micro-bubbles, improve the impurity adsorption effect and the aeration effect; the air flotation device comprises a workbench, an air flotation bin, an aeration pipe, a first mounting plate, a first motor, an air pump, a first air pipe and a second air pipe, wherein the lower right side of the front end of the workbench is connected with the rear end of the air flotation bin; the device also comprises a second mounting plate, a second motor, a water pump, a first water pipe, a first water valve, a second water pipe, a first pressure regulating valve, a fusion bin, a dissolved air water guide pipe, a second water valve and a second pressure regulating valve.

Description

Micro-nano aeration system for landfill leachate treatment

Technical Field

The utility model relates to a sewage treatment device's technical field especially relates to landfill leachate handles and uses micro-nano aeration system.

Background

As is well known, the micro-nano aeration system for landfill leachate treatment is an auxiliary device for aeration air-flotation treatment of sewage, and is widely used in the field of sewage treatment equipment; the prior micro-nano aeration system for treating the landfill leachate comprises a workbench, an air floating bin, an aeration pipe and a first mounting plate, the air pump comprises a first motor, an air pump, a first air pipe and a second air pipe, wherein the right lower side of the front end of a workbench is connected with the rear end of an air floating bin, the front end of the air floating bin is provided with an air floating groove, an aeration pipe is positioned at the bottom end of the air floating groove, the front end of the aeration pipe is uniformly communicated with a plurality of groups of air holes, the lower side output end of the aeration pipe is blocked, the rear end of the first mounting plate is connected with the left upper side of the front end of the workbench, the front end of the first mounting plate is connected with the rear end of the first motor, the bottom end of the first motor is connected with the top end of the air pump, the left side input end of the air pump is communicated with the right side output end of the first air pipe, the right side output end of the air pump is communicated with the left side input end of the second air; when the existing micro-nano aeration system for treating the garbage leachate is used, firstly, sewage is fed into an air flotation tank, then a first motor is started, the first motor drives an air pump to rotate, the air pump sucks external air through a first air pipe and discharges the air into an aeration pipe through a second air pipe, and air in the aeration pipe is discharged into the sewage in the air flotation tank through a plurality of groups of air holes; present landfill leachate handles and uses discovery with micro-nano aeration system, when carrying out aeration treatment to sewage, the air gets into in the sewage and forms the bubble, and the volume of bubble is great, and bubble rising speed is very fast, and the bubble adsorbs impurity volume in the sewage less, and aeration effect is relatively poor, leads to practicality and reliability relatively poor.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a through discharging into the microbubble in the sewage, prolong the persistence time of bubble in sewage, extension adsorption time, the quantity of microbubble increases, improves impurity adsorption effect, improves the micro-nano aeration system for landfill leachate treatment of aeration effect.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment, comprises a workbench, the air supporting storehouse, the aeration pipe, first mounting panel, first motor, the air pump, first trachea and second trachea, the front end right side downside of workstation is connected with the rear end in air supporting storehouse, the front end in air supporting storehouse is provided with the air supporting groove, the aeration pipe is located the bottom in air supporting groove, the front end of aeration pipe evenly communicates and is provided with the multiunit bleeder vent, the downside output end shutoff of aeration pipe, the rear end of first mounting panel is connected with the front end upper left side of workstation, the front end of first mounting panel is connected with the rear end of first motor, the bottom of first motor is connected with the top of air pump, the left side input of air pump communicates with the right side output of first trachea, the right side output of air pump communicates with the left side input of second trachea; the water pump is arranged at the right side of the first mounting plate, the front end of the second mounting plate is connected with the rear end of the second motor, the bottom end of the second motor is connected with the top end of the water pump, the right side input end of the water pump is communicated with the left side output end of the first water pipe, the first water valve is arranged on the first water pipe and is communicated with the first water pipe, the lower side output end of the first water pipe is communicated with the upper side input end of the second water pipe, the first pressure regulating valve is arranged on the second water pipe and is communicated with the second water pipe, the fusion chamber is arranged at the left side of the air floatation chamber, the rear end of the fusion chamber is connected with the front end of the workbench, a first cavity is arranged in the fusion chamber, and the lower side output end of the second air pipe is communicated with the left rear side of the top end of the first wall body, the left output end of the second water pipe is communicated with the rear upper side of the right end of the first cavity, the rear side of the right end of the first cavity is communicated with the left input end of the gas-water dissolving guide pipe, the right output end of the gas-water dissolving guide pipe penetrates through the rear upper side of the left end of the air floatation bin and is communicated with the upper input end of the aeration pipe, the second water valve is installed on the gas-water dissolving guide pipe and is communicated with the gas-water dissolving guide pipe, and the second pressure regulating valve is installed on the second air pipe and is communicated with the.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment, still including filtering the storehouse, first filter, apron and third water pipe, it is right-hand that the storehouse is located the second mounting panel to filter, the rear end of filtering the storehouse is connected with the front end of workstation, the inside of filtering the storehouse is provided with the second cavity, vertical the installing at second cavity middle part of first filter, second cavity front end intercommunication is provided with the clearance mouth, the rear end cap dress of apron is at the front end of clearance mouth, downside and the left side output of third water pipe communicate behind the second cavity right-hand member, the right side input of first water pipe and downside intercommunication behind the second cavity left end.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment still includes air suction hopper and second filter, and the first through-hole that runs through about air suction hopper's inside is provided with, and the left end diameter of first through-hole is greater than the right-hand member diameter of first through-hole, and air suction hopper's right-hand member and first tracheal left end intercommunication, the left end of air suction hopper is installed to the right-hand member of second filter.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment still including supporting the cover, supports the middle part of cover and is provided with the second through-hole that runs through about, supports the cover and fixes in first tracheal left side through second through-hole suit, supports the rear end of cover and is provided with the bracing piece, and the rear end of bracing piece is connected with the front end of workstation.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment still includes first blowdown pipe and first blowdown valve, downside intercommunication behind right-hand member and the first cavity left end of first blowdown pipe, first blowdown valve install on first blowdown pipe and with first blowdown pipe intercommunication.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment still includes second blow off pipe and second blowoff valve, the right-hand member of second blow off pipe and the downside output intercommunication of aeration pipe, and the left end in air supporting storehouse is passed and stretch out to the left in air supporting storehouse to the left of second blow off pipe, and the second blowoff valve is located the left in air supporting storehouse, and the second blowoff valve is installed on the second blow off pipe and is linked together with the second blow off pipe.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment still includes two sets of check valves, and two sets of check valves are installed respectively on second trachea and second water pipe and communicate with second trachea and second water pipe respectively.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment, the front end of multiunit bleeder vent all communicates and is provided with the connecting pipe, and the front end of multiunit connecting pipe all is provided with the aeration shower nozzle, and the inside of aeration shower nozzle is provided with the third cavity, the rear end of multiunit third cavity respectively with the front end intercommunication of multiunit communicating pipe, third cavity front end intercommunication is provided with multiunit aeration hole.

Compared with the prior art, the beneficial effects of the utility model are that: the second motor and the first water valve are opened, the second motor drives the water pump to rotate, the water pump sucks external water through the first water pipe and discharges the external water into the first cavity through the second water pipe, air in the second air pipe is discharged into the first cavity, the water and the air in the first cavity are fused at high pressure, the first pressure regulating valve and the second pressure regulating valve are regulated to respectively regulate the conveying pressure of the water and the air so as to conveniently regulate the fusion proportion of the water and the air, the second water valve is opened, high-pressure gas-dissolved water in the second cavity is discharged into the aeration pipe through the gas-dissolved water guide pipe, the high-pressure gas-dissolved water in the aeration pipe is discharged through a plurality of groups of exhaust holes on the aeration pipe, the pressure of the discharged high-pressure gas-dissolved water is rapidly reduced, the gas dissolved in the water is diluted and released to form micro bubbles, the micro bubbles adsorb impurities in the sewage and drive the impurities to float upwards, and the retention time of the, the adsorption time is prolonged, the number of micro bubbles is increased, the impurity adsorption effect is improved, and the aeration effect is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the filter cartridge of FIG. 1 in an enlarged bottom view;

FIG. 3 is a schematic view of the support sleeve of FIG. 1 in an enlarged bottom view;

FIG. 4 is a schematic view of the aeration nozzle in FIG. 1, shown in an enlarged bottom view;

in the drawings, the reference numbers: 1. a work table; 2. an air floating bin; 3. an aeration pipe; 4. a first mounting plate; 5. a first motor; 6. an air pump; 7. a first air pipe; 8. a second air pipe; 9. a second mounting plate; 10. a second motor; 11. a water pump; 12. a first water pipe; 13. a first water valve; 14. A second water pipe; 15. a first pressure regulating valve; 16. a fusion bin; 17. a dissolved gas water conduit; 18. a second water valve; 19. a second pressure regulating valve; 20. a filtering bin; 21. a first filter plate; 22. a cover plate; 23. a third water pipe; 24. an air suction hopper; 25. a second filter plate; 26. a support sleeve; 27. a first drain pipe; 28. a first waste valve; 29. a second sewage draining pipe; 30. a second blowoff valve; 31. A one-way valve; 32. an aeration nozzle.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 4, the micro-nano aeration system for treating landfill leachate of the utility model comprises a workbench 1, an air floating bin 2, an aeration pipe 3 and a first mounting plate 4, the air flotation device comprises a first motor 5, an air pump 6, a first air pipe 7 and a second air pipe 8, wherein the right lower side of the front end of a workbench 1 is connected with the rear end of an air flotation bin 2, the front end of the air flotation bin 2 is provided with an air flotation groove, an aeration pipe 3 is positioned at the bottom end of the air flotation groove, the front end of the aeration pipe 3 is uniformly communicated with a plurality of groups of air holes, the lower side output end of the aeration pipe 3 is blocked, the rear end of a first mounting plate 4 is connected with the left upper side of the front end of the workbench 1, the front end of the first mounting plate 4 is connected with the rear end of the first motor 5, the bottom end of the first motor 5 is connected with the top end of the air pump 6, the left side input end of the air pump 6 is communicated with the right side output end of the first air; the water heater also comprises a second mounting plate 9, a second motor 10, a water pump 11, a first water pipe 12, a first water valve 13, a second water pipe 14, a first pressure regulating valve 15, a fusion bin 16, a dissolved gas-water guide pipe 17, a second water valve 18 and a second pressure regulating valve 19, wherein the second mounting plate 9 is positioned at the right side of the first mounting plate 4, the front end of the second mounting plate 9 is connected with the rear end of the second motor 10, the bottom end of the second motor 10 is connected with the top end of the water pump 11, the right input end of the water pump 11 is communicated with the left output end of the first water pipe 12, the first water valve 13 is arranged on the first water pipe 12 and is communicated with the first water pipe 12, the lower output end of the first water pipe 12 is communicated with the upper input end of the second water pipe 14, the first pressure regulating valve 15 is arranged on the second water pipe 14 and is communicated with the second water pipe 14, the fusion bin 16 is positioned at the left of the floating bin 2, the rear end of the fusion, a first cavity is arranged in the fusion bin 16, the lower side output end of the second air pipe 8 is communicated with the left rear side of the top end of the first wall body, the left side output end of the second water pipe 14 is communicated with the rear upper side of the right end of the first cavity, the rear side of the right end of the first cavity is communicated with the left side input end of the air dissolved water guide pipe 17, the right side output end of the air dissolved water guide pipe 17 passes through the rear upper side of the left end of the air floatation bin 2 and is communicated with the upper side input end of the aeration pipe 3, a second water valve 18 is arranged on the air dissolved water guide pipe 17 and is communicated with the air dissolved water guide pipe 17, and a second pressure regulating valve 19 is arranged on; the second motor and the first water valve are opened, the second motor drives the water pump to rotate, the water pump sucks external water through the first water pipe and discharges the external water into the first cavity through the second water pipe, air in the second air pipe is discharged into the first cavity, the water and the air in the first cavity are fused at high pressure, the first pressure regulating valve and the second pressure regulating valve are regulated to respectively regulate the conveying pressure of the water and the air so as to conveniently regulate the fusion proportion of the water and the air, the second water valve is opened, high-pressure gas-dissolved water in the second cavity is discharged into the aeration pipe through the gas-dissolved water guide pipe, the high-pressure gas-dissolved water in the aeration pipe is discharged through a plurality of groups of exhaust holes on the aeration pipe, the pressure of the discharged high-pressure gas-dissolved water is rapidly reduced, the gas dissolved in the water is diluted and released to form micro bubbles, the micro bubbles adsorb impurities in the sewage and drive the impurities to float upwards, and the retention time of the, the adsorption time is prolonged, the number of micro bubbles is increased, the impurity adsorption effect is improved, and the aeration effect is improved.

The utility model discloses a micro-nano aeration system for landfill leachate treatment, still include filter bin 20, first filter 21, apron 22 and third water pipe 23, filter bin 20 is located the right-hand side of second mounting panel 9, the rear end of filter bin 20 is connected with the front end of workstation 1, the inside of filter bin 20 is provided with the second cavity, first filter 21 is vertically installed in the middle part of the second cavity, second cavity front end intercommunication is provided with the clearance mouth, the rear end of apron 22 is adorned at the front end of clearance mouth, second cavity right-hand member rear underside communicates with the left side output of third water pipe 23, the right side input of first water pipe 12 communicates with second cavity left end rear underside; inside external water got into the second cavity through the third water pipe, first filter carried out the filter effect to the water in the second cavity, and the rivers after the filtration were to the second cavity left side and get into first water pipe in, prevented that the impurity of aquatic from getting into aeration systems, opened the apron, and the device and the impurity in the convenient first cavity clear up, improve the practicality.

The utility model discloses a little nano-aeration system for landfill leachate treatment still includes air suction hopper 24 and second filter 25, and the inside of air suction hopper 24 is provided with the first through-hole that runs through from left to right, and the left end diameter of first through-hole is greater than the right-hand member diameter of first through-hole, and the right-hand member of air suction hopper 24 communicates with the left end of first trachea 7, and the right-hand member of second filter 25 is installed at the left end of air suction hopper 24; inside outside air passed through the first through-hole of second filter entering, in the air admission first air pipe in the first through-hole, through setting up the air suction fill, can increase the air suction area, increase air flow rate, through setting up the second filter, can effectively filter the air, prevent that impurity in the air from getting into aeration systems in, improve the practicality.

The micro-nano aeration system for treating landfill leachate of the utility model also comprises a support sleeve 26, a second through hole which runs through left and right is arranged in the middle of the support sleeve 26, the support sleeve 26 is fixed on the left side of the first air pipe 7 through the second through hole in a sleeving manner, a support rod is arranged at the rear end of the support sleeve 26, and the rear end of the support rod is connected with the front end of the workbench 1; support the cover through setting up, can fix and support first trachea, prevent that first trachea, suction hopper and second filter from taking place to rock, improve the practicality.

The utility model discloses a micro-nano aeration system for landfill leachate treatment, still include first blow-off pipe 27 and first blow-off valve 28, the right-hand member of first blow-off pipe 27 communicates with the lower side behind the left end of first cavity, first blow-off valve 28 is installed on first blow-off pipe 27 and is communicated with first blow-off pipe 27; open first blow off valve, the high pressure in the first cavity dissolves the first blow off pipe of air water accessible and discharges to the external world, conveniently to fusing the inside cleaning work that carries on in storehouse, improves the practicality.

The utility model discloses a micro-nano aeration system for landfill leachate treatment, still include second blow off pipe 29 and second blowoff valve 30, the right-hand member of second blow off pipe 29 communicates with the downside output of aeration pipe 3, the left end of second blow off pipe 29 passes the left end in air supporting storehouse 2 and stretches out to the left in air supporting storehouse 2, second blowoff valve 30 is located the left in air supporting storehouse 2, second blowoff valve 30 is installed on second blow off pipe 29 and is communicated with second blow off pipe 29; when the interior of the aeration pipe is cleaned, the second blow-down valve is opened, and the cleaning water in the aeration pipe is discharged to the outside through the second blow-down pipe, so that the practicability is improved.

The micro-nano aeration system for treating the landfill leachate of the utility model also comprises two sets of one-way valves 31, wherein the two sets of one-way valves 31 are respectively arranged on the second air pipe 8 and the second water pipe 14 and are respectively communicated with the second air pipe 8 and the second water pipe 14; through setting up two sets of check valves, can prevent effectively that the liquid in the first cavity from flowing back respectively inside second trachea and the second water pipe, improve the practicality.

The utility model discloses a micro-nano aeration system for landfill leachate treatment, the front end of multiunit bleeder vent all communicates and is provided with the connecting pipe, and the front end of multiunit connecting pipe all is provided with aeration nozzle 32, and aeration nozzle 32's inside is provided with the third cavity, and the rear end of multiunit third cavity communicates with the front end of multiunit communicating pipe respectively, and third cavity front end intercommunication is provided with multiunit aeration hole; the high pressure of aeration pipe dissolves the air water and gets into inside the third cavity and through the aeration hole in discharging into the sewage through the connecting pipe, through setting up the aeration shower nozzle, improves the high pressure and dissolves the distribution area of air water, improves the micro-bubble and generates the area, improves the practicality.

The utility model discloses a micro-nano aeration system for landfill leachate treatment, it is at work, at first send sewage into the air supporting groove, then open first motor, first motor drives the air pump and rotates, the air pump sucks external gas through first trachea, suction hopper and second filter and discharges the gas into through the second trachea and fuse the storehouse inside, simultaneously external water gets into the second cavity inside through the third water pipe, the first filter filters the water in the second cavity, the water after the filtration flows to the left side of the second cavity and gets into in the first water pipe, open second motor and first water valve, the second motor drives the water pump and rotates, the water pump sucks the water in the first water pipe and discharges into the first cavity inside through the second water pipe, the air in the second air pipe discharges into the first cavity inside, the water and the air in the first cavity fuse under high pressure, adjust first air-vent valve and second air-vent valve, adjust the delivery pressure of water and air respectively, the integration proportion of convenient adjustment water and air, open the second water valve, it is intraductal that the aeration is discharged through dissolving the gas water pipe to high pressure water-dissolving in the second cavity, the high pressure water-dissolving of aeration pipe is passed through the connecting pipe and is got into inside the third cavity and discharge into in the sewage through the aeration hole, the gas water pressure is dissolved to discharged high pressure reduces rapidly, dissolve the gas weak release in aqueous and form the microbubble, the microbubble adsorbs the impurity in the sewage and drive the impurity come-up can.

The utility model discloses a micro-nano aeration system is used in landfill leachate treatment, its mounting means, connected mode or set up the mode and be common mechanical system, as long as can reach all can implement of its beneficial effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The micro-nano aeration system for treating the garbage leachate comprises a workbench (1), an air floating bin (2), an aeration pipe (3), a first mounting plate (4), a first motor (5), an air pump (6), a first air pipe (7) and a second air pipe (8), wherein the right lower side of the front end of the workbench (1) is connected with the rear end of the air floating bin (2), an air floating groove is formed in the front end of the air floating bin (2), the aeration pipe (3) is positioned at the bottom end of the air floating groove, a plurality of groups of air holes are uniformly communicated with the front end of the aeration pipe (3), the lower side output end of the aeration pipe (3) is blocked, the rear end of the first mounting plate (4) is connected with the left upper side of the front end of the workbench (1), the front end of the first mounting plate (4) is connected with the rear end of the first motor (5), the bottom end of the first motor (5) is connected with the top end of the air pump (6), the left side input end of the air pump (6) is communicated, the right output end of the air pump (6) is communicated with the left input end of the second air pipe (8); it is characterized by also comprising a second mounting plate (9), a second motor (10), a water pump (11), a first water pipe (12), a first water valve (13), a second water pipe (14), a first pressure regulating valve (15), a fusion bin (16), a dissolved air water guide pipe (17), a second water valve (18) and a second pressure regulating valve (19), wherein the second mounting plate (9) is positioned at the right side of the first mounting plate (4), the front end of the second mounting plate (9) is connected with the rear end of the second motor (10), the bottom end of the second motor (10) is connected with the top end of the water pump (11), the right side input end of the water pump (11) is communicated with the left side output end of the first water pipe (12), the first water valve (13) is mounted on the first water pipe (12) and is communicated with the first water pipe (12), the lower side output end of the first water pipe (12) is communicated with the upper side input end of the second water pipe (14), the first pressure regulating valve (15) is mounted on the second water pipe (14) and is communicated with the second water pipe (14), the fusion bin (16) is located on the left side of the air floatation bin (2), the rear end of the fusion bin (16) is connected with the front end of the workbench (1), a first cavity is arranged inside the fusion bin (16), the lower side output end of the second air pipe (8) is communicated with the left rear side of the top end of the first wall body, the left side output end of the second water pipe (14) is communicated with the rear upper side of the right end of the first cavity, the rear side of the right end of the first cavity is communicated with the left side input end of the air dissolved water guide pipe (17), the right side output end of the air dissolved water guide pipe (17) penetrates through the rear upper side of the left end of the air floatation bin (2) and is communicated with the upper side input end of the aeration pipe (3), the second water valve (18) is installed on the air dissolved water guide pipe (17) and is communicated with the air dissolved water guide pipe (17), and the second pressure regulating valve (19) is installed on.

2. The micro-nano aeration system for landfill leachate treatment according to claim 1, further comprising a filter bin (20), a first filter plate (21), a cover plate (22) and a third water pipe (23), wherein the filter bin (20) is located on the right side of the second mounting plate (9), the rear end of the filter bin (20) is connected with the front end of the workbench (1), a second cavity is arranged inside the filter bin (20), the first filter plate (21) is vertically mounted in the middle of the second cavity, a cleaning port is communicated with the front end of the second cavity, the rear end of the cover plate (22) is mounted at the front end of the cleaning port, the rear lower side of the right end of the second cavity is communicated with the left output end of the third water pipe (23), and the right input end of the first water pipe (12) is communicated with the rear lower side of the left end of the second cavity.

3. The micro-nano aeration system for landfill leachate treatment according to claim 2, further comprising an air suction hopper (24) and a second filter plate (25), wherein a first through hole penetrating left and right is formed in the air suction hopper (24), the diameter of the left end of the first through hole is larger than that of the right end of the first through hole, the right end of the air suction hopper (24) is communicated with the left end of the first air pipe (7), and the right end of the second filter plate (25) is installed at the left end of the air suction hopper (24).

4. The micro-nano aeration system for landfill leachate treatment according to claim 3, further comprising a support sleeve (26), wherein a second through hole penetrating left and right is formed in the middle of the support sleeve (26), the support sleeve (26) is fixed on the left side of the first air pipe (7) through the second through hole in a sleeved manner, a support rod is arranged at the rear end of the support sleeve (26), and the rear end of the support rod is connected with the front end of the workbench (1).

5. The micro-nano aeration system for landfill leachate treatment according to claim 4, further comprising a first drain pipe (27) and a first drain valve (28), wherein the right end of the first drain pipe (27) is communicated with the rear lower side of the left end of the first cavity, and the first drain valve (28) is installed on the first drain pipe (27) and is communicated with the first drain pipe (27).

6. The micro-nano aeration system for landfill leachate treatment according to claim 5, further comprising a second drainage pipe (29) and a second drainage valve (30), wherein the right end of the second drainage pipe (29) is communicated with the lower side output end of the aeration pipe (3), the left end of the second drainage pipe (29) passes through the left end of the air flotation bin (2) and extends to the left of the air flotation bin (2), the second drainage valve (30) is located on the left of the air flotation bin (2), and the second drainage valve (30) is installed on the second drainage pipe (29) and is communicated with the second drainage pipe (29).

7. The micro-nano aeration system for landfill leachate treatment according to claim 6, further comprising two sets of check valves (31), wherein the two sets of check valves (31) are respectively installed on the second air pipe (8) and the second water pipe (14) and are respectively communicated with the second air pipe (8) and the second water pipe (14).

8. The micro-nano aeration system for landfill leachate treatment according to claim 7, wherein the front ends of the plurality of sets of air holes are all communicated with a connecting pipe, the front ends of the plurality of sets of connecting pipes are all provided with an aeration nozzle (32), a third cavity is arranged inside the aeration nozzle (32), the rear ends of the plurality of sets of third cavities are respectively communicated with the front ends of the plurality of sets of communicating pipes, and the front ends of the third cavities are communicated with a plurality of sets of aeration holes.