A self-oxygenating microbial sewage treatment system

Abstract

The present invention relates to the technical field of sewage treatment, and discloses a self-oxygenating microbial sewage treatment system, wherein the self-oxygenating microbial sewage treatment system comprises a treatment tank, an oxygenation component arranged on the treatment tank, and a mixing component arranged on the top of the treatment tank, wherein the oxygenation component comprises an oxygenation component arranged at one end of the treatment tank, a pull-out component arranged on the oxygenation component, a synchronization component arranged at one end of the treatment tank, and a reflux oxygenation component arranged on the oxygenation component. The self-oxygenating microbial sewage treatment system can distribute multiple groups of one-way valves at the bottom of the treatment tank through the arrangement of multiple groups of oxygenation components, and the uniform oxygen supply provides a better growth environment for microorganisms, promotes the biodegradation and oxidation process of organic matter in sewage, and prevents the situation where there is excess oxygen in some areas and insufficient oxygen in other areas, thereby improving the efficiency of the entire sewage treatment process.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a self-oxygenation type microbial sewage treatment system. Background Art

[0002] Microbial wastewater treatment is a method that uses the metabolic activities of microorganisms to degrade and transform organic pollutants in wastewater.

[0003] Self-aeration microbial sewage treatment, combining the principles and technologies of microbial sewage treatment, is a sewage treatment method that can self-enhance the dissolved oxygen content to optimize the microbial degradation effect. Microbial sewage treatment mainly relies on the metabolic activities of microorganisms to decompose organic matter in sewage to achieve the purpose of purifying water quality. In this process, dissolved oxygen is a key factor that affects the activity and degradation efficiency of microorganisms. Self-aeration sewage treatment uses specific technologies or designs to increase the dissolved oxygen content in sewage, thereby enhancing the degradation ability of microorganisms.

[0004] The current prior art, when performing oxygenation operations for microbial sewage treatment, mostly directly places the oxygenation equipment into the treatment pool to continuously inject oxygen into the pool to increase the dissolved oxygen content in the sewage, thereby enhancing the degradation ability of the microorganisms. However, most of the current treatment pools are equipped with external oxygenation equipment, which requires the installation and placement of multiple sets of oxygenation equipment during actual use, which means more maintenance work and potential failure points. Equipment damage, aging or improper maintenance may affect the sewage treatment effect and operational stability, thereby increasing maintenance costs. At the same time, external oxygenation equipment may cause uneven distribution of dissolved oxygen in the sewage treatment pool, with too high dissolved oxygen in some areas and insufficient dissolved oxygen in other areas. This will affect the growth and metabolic activities of microorganisms, thereby affecting the sewage treatment effect. Summary of the invention

[0005] In view of the fact that most of the above-mentioned prior arts use external oxygenation equipment, which may lead to uneven distribution of dissolved oxygen in the sewage treatment pool, with too high dissolved oxygen in some areas and insufficient dissolved oxygen in other areas, which will affect the growth and metabolic activities of microorganisms and further affect the sewage treatment effect, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a self-oxygenating microbial sewage treatment system, the purpose of which is to prevent the situation where there is excess oxygen in some areas and insufficient oxygen in other areas, thereby improving the efficiency of the entire sewage treatment process.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-oxygenation microbial sewage treatment system, comprising a treatment tank, an oxygenation component arranged on the treatment tank, and a mixing component arranged on the top of the treatment tank;

[0008] The oxygenation component includes an oxygenation component arranged at one end of the treatment tank, a pulling component arranged on the oxygenation component, a synchronization component arranged at one end of the treatment tank, and a reflux oxygenation component arranged on the oxygenation component. The oxygenation component includes multiple groups of oxygenation bins arranged at one end of the treatment tank, a pulling rod arranged at the top of the oxygenation bin, and the bottom end of the pulling rod slides and extends to the inner cavity of the oxygenation bin, a sealing gasket arranged at the bottom end of the pulling rod, and the sealing gasket slides in the inner cavity of the oxygenation bin, a one-way valve 1 arranged at the bottom of one end of the oxygenation bin, a one-way valve 2 arranged at the bottom of the oxygenation bin, multiple groups of connecting pipes arranged at the bottom of the inner cavity of the treatment tank, and one end of the connecting pipe extends to the outside of the treatment tank and is interconnected with the one-way valve 2, multiple groups of one-way valve 3 arranged at the top of the connecting pipe, and a connecting hole arranged at the top of one side of the oxygenation bin.

[0009] As a preferred solution of the self-oxygenation microbial sewage treatment system described in the present invention, the pulling assembly includes a mounting frame arranged at the top of one end of the oxygenation bin, a reciprocating screw rod arranged at the top and bottom of the inner cavity of the mounting frame, and the bottom end of the reciprocating screw rod extends to the bottom of the mounting frame, a bevel gear rod arranged at the bottom of the surface of the reciprocating screw rod, and the bevel gear rod is located below the mounting frame, and an internal threaded sleeve block arranged on the surface of the reciprocating screw rod, and the bottom end of the internal threaded sleeve block is connected to the top of the pulling rod.

[0010] As a preferred solution of the self-oxygenation microbial sewage treatment system described in the present invention, the synchronization component includes mounting side plates arranged on the tops of both sides of one end of the treatment tank, a rotating rod arranged on the side where the two groups of mounting side plates are close to each other, and one end of the rotating rod passes through a group of mounting side plates, multiple groups of bevel gears 2 are arranged on the surface of the rotating rod, and the bevel gears 2 and 1 are meshed with each other, and a motor is arranged on one side of the treatment tank.

[0011] As a preferred embodiment of the self-oxygenation microbial sewage treatment system described in the present invention, the reflux oxygenation component includes a one-way valve four arranged in the inner cavity of the connecting hole, a one-way valve five arranged at the top of the oxygenation bin away from the one-way valve four, and a delivery pipe arranged at one end of the one-way valve five away from the oxygenation bin, and the end of the delivery pipe away from the one-way valve five is connected to the connecting pipe.

[0012] As a preferred solution of the self-oxygenation microbial sewage treatment system described in the present invention, the mixing component includes two groups of mounting top bins arranged on the top of the treatment tank, a movable opening arranged at the bottom of the mounting top bin, two reciprocating screws arranged on both sides of the inner cavity of the mounting top bin, and one end of the two reciprocating screws extends to the outside of the mounting top bin, two internally threaded sleeves arranged on the surface of the two reciprocating screws, a rotating bottom rod arranged at the bottom of the two internally threaded sleeves, and the rotating bottom rod extends to the inner cavity of the treatment tank through the movable opening, as well as multiple groups of mixing blades arranged on the surface of the rotating bottom rod, and a linkage component arranged on the two reciprocating screws.

[0013] As a preferred solution of the self-oxygenation microbial sewage treatment system described in the present invention, the mixing component also includes a rack arranged at one end of the bottom of the mounting top bin, and a gear arranged above the mixing blades on the surface of the rotating bottom rod, and the gear and the rack are meshed with each other.

[0014] As a preferred solution of the self-oxygenation microbial sewage treatment system described in the present invention, the linkage assembly includes a double-groove pulley arranged at one end of a group of reciprocating screw rods located outside the top bin, a pulley arranged at another end of the reciprocating screw rods located outside the top bin and at one end of the surface of the rotating rod, and two groups of transmission belts arranged on the surface of the double-groove pulley, and the two groups of transmission belts are respectively arranged on the two groups of pulleys.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention, through the arrangement of multiple groups of oxygenation components, can distribute multiple groups of one-way valves three at the bottom of the treatment pool to ensure uniform distribution of oxygen in the entire treatment pool. The uniform oxygen supply provides a better growth environment for microorganisms, promotes the biodegradation and oxidation process of organic matter in sewage, and prevents the situation where there is excess oxygen in some areas and insufficient oxygen in other areas, thereby improving the efficiency of the entire sewage treatment process. At the same time, compared with multiple groups of external oxygenation equipment, the design of built-in one-way valve three reduces the number and complexity of equipment.

[0017] 2. The present invention, through the setting of the reflux oxygenation component, makes it possible for the sealing gasket block on the pull-out rod to not only increase oxygen in the treatment pool when it moves downward, but also to increase oxygen in the treatment pool when it moves upward, thereby realizing a continuous supply of air, allowing air to enter the treatment pool more frequently and more evenly, increasing the gas-liquid contact area, and thus improving the air transfer efficiency.

[0018] 3. In the present invention, when the starter motor drives the sealing gasket to move up and down reciprocatingly for oxygenation, the rotating bottom rods on the two sets of reciprocating screw rods can move back and forth and rotate in the treatment tank, so that the air can be more evenly distributed in the treatment tank, thereby increasing the contact area between air and sewage, helping to improve the dissolution efficiency of oxygen, allowing more oxygen to be used by microorganisms, and further promoting the degradation of organic matter. At the same time, the mixing blades on the rotating bottom rod rotate while reciprocating, which not only increases the oxygen transfer efficiency, but also strengthens the mixing effect in the sewage, which makes the pollutants in the sewage more evenly distributed in the treatment tank, avoids the situation of excessively high or low local concentrations, and improves the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] in:

[0021] Figure 1 It is a schematic diagram of the overall structure of the self-oxygenation microbial sewage treatment system of the present invention.

[0022] Figure 2 It is a side view and a cross-sectional perspective structural diagram of the self-oxygenation microbial sewage treatment system of the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the oxygenation component of the self-oxygenation microbial sewage treatment system of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the oxygenation component of the self-oxygenation microbial sewage treatment system of the present invention from another perspective.

[0025] Figure 5 It is a schematic diagram of the main cross-sectional structure of the self-oxygenation microbial sewage treatment system of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the mixing components of the self-oxygenation microbial sewage treatment system of the present invention.

[0027] Description of reference numerals:

[0028] 1. Treatment pool;

[0029] 2. Oxygenation components; 21. Oxygenation assembly; 211. Oxygenation chamber; 212. One-way valve 1; 213. One-way valve 2; 214. Connecting hole; 215. Connecting pipe; 216. One-way valve 3; 217. Pull-out rod; 218. Sealing pad; 22. Pull-out assembly; 221. Mounting frame; 222. Reciprocating screw rod 1; 223. Internal thread sleeve block 1; 224. Bevel gear 1; 23. Synchronous assembly; 231. Mounting side plate; 232. Rotating rod; 233. Bevel gear 2; 234. Motor; 24. Reflux oxygenation assembly; 241. One-way valve 4; 242. One-way valve 5; 243. Delivery pipe;

[0030] 3. Mixing component; 31. Install the top bin; 32. Reciprocating screw rod 2; 33. Internal thread sleeve block 2; 34. Moving port; 35. Rotating bottom rod; 36. Mixing blade; 37. Gear; 38. Rack; 39. Linkage assembly; 391. Double-groove pulley; 392. Pulley; 393. Transmission belt. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Example 1

[0034] Reference Figure 1-4 , which is the first embodiment of the present invention, provides a self-oxygenation microbial sewage treatment system, the self-oxygenation microbial sewage treatment system comprises a treatment tank 1, an oxygenation component 2 arranged on the treatment tank 1, and a mixing component 3 arranged on the top of the treatment tank 1;

[0035] The oxygenation component 2 includes an oxygenation component 21 arranged at one end of the treatment pool 1, a pull-out component 22 arranged on the oxygenation component 21, a synchronization component 23 arranged at one end of the treatment pool 1, and a reflux oxygenation component 24 arranged on the oxygenation component 21. The oxygenation component 21 includes a plurality of oxygenation bins 211 fixedly installed at one end of the treatment pool 1, a pull-out rod 217 slidably connected to the top of the oxygenation bin 211, and the bottom end of the pull-out rod 217 slides and extends to the inner cavity of the oxygenation bin 211, a sealing gasket 218 fixedly installed at the bottom end of the pull-out rod 217, and the sealing gasket 218 slides in the inner cavity of the oxygenation bin 211, and is connected to the bottom of one end of the oxygenation bin 211. One-way valve 212, one-way valve 212 is used to transfer external air into the oxygenation chamber 211, one-way valve 213 is connected to the bottom of the oxygenation chamber 211, one-way valve 213 is used to discharge the air in the oxygenation chamber 211, multiple groups of connecting pipes 215 are installed at the bottom of the inner cavity of the treatment tank 1, and one end of the connecting pipe 215 extends to the outside of the treatment tank 1 and is interconnected with the one-way valve 213, multiple groups of one-way valves 3 216 are connected to the top of the connecting pipe 215, one-way valve 3 216 is used to discharge the gas in the connecting pipe 215, and a connecting hole 214 is opened at the top of one side of the oxygenation chamber 211 to facilitate the air to enter the oxygenation chamber 211.

[0036] The pulling assembly 22 includes a mounting frame 221 fixedly mounted on the top of one end of the oxygen enrichment chamber 211, a reciprocating screw 222 rotatably connected to the top and bottom of the inner cavity of the mounting frame 221, and the bottom end of the reciprocating screw 222 extends to the bottom of the mounting frame 221, and the reciprocating movement of the reciprocating screw 222 can drive the sealing gasket 218 on the pulling rod 217 to move up and down in the inner cavity of the oxygen enrichment chamber 211, a bevel gear 224 fixedly mounted on the bottom of the surface of the reciprocating screw 222, and the bevel gear 224 is located below the mounting frame 221, and an internally threaded sleeve block 223 threadedly mounted on the surface of the reciprocating screw 222, and one end of the bottom of the internally threaded sleeve block 223 is connected to the top of the pulling rod 217.

[0037] The synchronization component 23 includes a mounting side plate 231 fixedly mounted on the top of both sides of one end of the treatment pool 1, a rotating rod 232 rotatably connected to the side where the two sets of mounting side plates 231 are close to each other, and one end of the rotating rod 232 passes through a set of mounting side plates 231, a plurality of sets of bevel gears 2 233 fixedly mounted on the surface of the rotating rod 232, and the bevel gears 233 and 1 224 are meshed with each other, and a motor 234 mounted on one side of the treatment pool 1. It is worth noting that the output end of the motor 234 here is interconnected with the rotating rod 232 for driving the rotating rod 232 to rotate.

[0038] During use, first, the motor 234 is started to drive 323 to rotate, and the bevel gear 233 and the bevel gear 1 224 are meshed with each other. When the rotating rod 232 rotates, it can drive multiple groups of reciprocating screws 1 222 to rotate synchronously. When the reciprocating screw 1 222 rotates, it can drive the internal thread sleeve block 1 223 to move up and down on the surface of the reciprocating screw 1 222. Whenever the internal thread sleeve block 1 223 moves down, it can drive the sealing pad block 218 on the pull rod 217 to move down in the inner cavity of the oxygen enrichment chamber 211, thereby passing the air in the oxygen enrichment chamber 211 through The one-way valve 213 is pushed to the inner cavity of the connecting pipe 215, and then discharged from the bottom of the inner cavity of the treatment tank 1 through the multiple groups of one-way valves 3 216 on the connecting pipe 215. When the pulling rod 217 drives the sealing gasket 218 to rise, the one-way valve 3 216 and the one-way valve 2 213 are closed. At this time, the one-way valve 1 212 is opened to inject air into the oxygenation chamber 211, and then the air on the top of the sealing gasket 218 is discharged through the connecting hole 214. When the sealing gasket 218 reaches the top of the inner cavity of the oxygenation chamber 211, it moves down again to realize the oxygenation operation of the inner cavity of the treatment tank 1.

[0039] Example 2

[0040] Reference Figure 1-4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the reflux oxygenation component 24 includes a one-way valve four 241 installed in the inner cavity of the connecting hole 214, the one-way valve four 241 is used to suck external air into the oxygenation chamber 211, a one-way valve five 242 connected to the top of the oxygenation chamber 211 away from the one-way valve four 241, is used to discharge the air from the oxygenation chamber 211, and a delivery pipe 243 is arranged at the end of the one-way valve five 242 away from the oxygenation chamber 211, and the end of the delivery pipe 243 away from the one-way valve five 242 is connected to the connecting pipe 215.

[0041] During use, when the internal threaded sleeve block 1 223 moves downward, it can drive the sealing gasket block 218 on the pulling rod 217 to move downward in the inner cavity of the oxygen enrichment chamber 211, and then push the air in the oxygen enrichment chamber 211 to the inner cavity of the connecting pipe 215 through the one-way valve 213. At this time, the one-way valve 4 241 is opened to suck the external air into the space above the sealing gasket block 218 in the inner cavity of the oxygen enrichment chamber 211, and then discharge it from the bottom of the inner cavity of the treatment tank 1 through the multiple sets of one-way valves 3 216 on the connecting pipe 215. When the pulling rod 217 drives the sealing gasket block 218 to rise, the one-way valve 3 216 and the one-way valve 2 213 are closed. Open valve 1 212 to inject air into the oxygenation chamber 211, and at the same time, the one-way valve 4 241 will be closed. Then, the air on the top of the sealing gasket 218 is discharged into the delivery pipe 243 through the one-way valve 5 242, and then the air is transferred to the connecting pipe 215 through the delivery pipe 243, and then discharged from the bottom of the inner cavity of the treatment pool 1 through the multiple sets of one-way valves 3 216 on the connecting pipe 215. When the sealing gasket 218 reaches the top of the inner cavity of the oxygenation chamber 211, it moves down again and repeats the above steps, so that the pulling rod 217 can drive the sealing gasket 218 to move up and down while the inner cavity of the treatment pool 1 can be oxygenated.

[0042] The remaining structures are the same as those of Example 1.

[0043] Example 3

[0044] Reference Figure 1-6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the mixing component 3 includes two groups of mounting top bins 31 fixedly mounted on the top of the treatment pool 1, a moving opening 34 opened at the bottom of the mounting top bin 31, a reciprocating screw rod 32 rotatably connected to both sides of the inner cavity of the mounting top bin 31, and one end of the reciprocating screw rod 32 extends to the outside of the mounting top bin 31, an internal threaded sleeve block 33 threadedly sleeved on the surface of the reciprocating screw rod 32, a rotating bottom rod 35 rotatably connected to the bottom of the internal threaded sleeve block 33, and the rotating bottom rod 35 extends to the inner cavity of the treatment pool 1 through the moving opening 34, and a plurality of groups of mixing blades 36 mounted on the surface of the rotating bottom rod 35, and a linkage assembly 39 arranged on the reciprocating screw rod 32, the mixing component 3 also includes a rack 38 mounted on one end of the bottom of the mounting top bin 31, and a gear 37 fixedly sleeved on the surface of the rotating bottom rod 35 above the mixing blades 36, and the gear 37 and the rack 38 are meshed with each other. When the rotating bottom rod 35 moves, the gear 37 can be driven to rotate.

[0045] The linkage assembly 39 includes a double-groove pulley 391 fixedly mounted on a group of reciprocating screw rods 32 located at one end outside the mounting top bin 31, a pulley 392 fixedly mounted on another group of reciprocating screw rods 32 located at one end outside the mounting top bin 31 and one end of the surface of the rotating rod 232, and two groups of transmission belts 393 slidably mounted on the surface of the double-groove pulley 391, and the two groups of transmission belts 393 are respectively mounted on the two groups of pulleys 392. It is worth noting that the output end of the motor 234 here can be interconnected with the reciprocating screw rod 32 mounted with the double-groove pulley 391, so that when the starting motor 234 is started, it drives a group of reciprocating screw rods 32 to rotate. By utilizing the mutual cooperation of the double-groove pulley 391, the pulley 392 and the transmission belt 393, the two groups of reciprocating screw rods 32 and the rotating rod 232 can be rotated synchronously.

[0046] During use, when it is necessary to increase oxygen in the treatment tank 1, by starting the motor 234, and then using the cooperation of the double-groove pulley 391, the pulley 392 and the transmission belt 393, the two sets of reciprocating screw rods 2 32 and the rotating rod 232 can be rotated synchronously. The rotation of the rotating rod 232 can cause the one-way valves 3 216 on the multiple sets of connecting pipes 215 at the bottom of the inner cavity of the treatment tank 1 to discharge air for oxygenating the sewage in the treatment tank 1. At the same time, when the reciprocating screw rod 2 32 rotates, it can drive the internal threaded sleeve block 2 33 to move back and forth on the surface of the reciprocating screw rod 2 32, thereby driving the rotating bottom rod 35 and the mixing blades 36 to stir the sewage back and forth in the inner cavity of the treatment tank 1. At the same time, when the gear 37 and the rack 38 are meshed, when the rotating bottom rod 35 moves, it can drive the rotating bottom rod 35 and the mixing blades 36 to rotate, thereby improving the mixing efficiency of the sewage and oxygen in the treatment tank 1.

[0047] The remaining structure is the same as that of Example 2.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A self-oxygenating microbial sewage treatment system, comprising a treatment tank (1), characterized in that: An oxygenation component (2) disposed on the treatment tank (1), and a mixing component (3) disposed on the top of the treatment tank (1); The oxygenation component (2) comprises an oxygenation assembly (21) arranged at one end of the treatment pool (1), a pull-out assembly (22) arranged on the oxygenation assembly (21), a synchronization assembly (23) arranged at one end of the treatment pool (1), and a reflux oxygenation assembly (24) arranged on the oxygenation assembly (21); the oxygenation assembly (21) comprises a plurality of oxygenation bins (211) arranged at one end of the treatment pool (1), a pull-out rod (217) arranged at the top of the oxygenation bin (211), and the bottom end of the pull-out rod (217) slidably extends into the inner cavity of the oxygenation bin (211), and the bottom end of the pull-out rod (217) is arranged a sealing gasket (218) disposed at the bottom of one end of the oxygen enrichment chamber (211); a one-way valve (212) disposed at the bottom of one end of the oxygen enrichment chamber (211); a one-way valve (213) disposed at the bottom of the oxygen enrichment chamber (211); a plurality of connecting pipes (215) disposed at the bottom of the inner cavity of the treatment tank (1); one end of the connecting pipe (215) extending to the outside of the treatment tank (1) and connected to the one-way valve (213); a plurality of one-way valves (216) disposed at the top of the connecting pipe (215); and a connecting hole (214) disposed at the top of one side of the oxygen enrichment chamber (211); The pulling assembly (22) comprises a mounting frame (221) disposed at the top of one end of the oxygen enrichment chamber (211), a reciprocating screw rod (222) disposed at the top and bottom of the inner cavity of the mounting frame (221), wherein the bottom end of the reciprocating screw rod (222) extends to the bottom of the mounting frame (221), a bevel gear (224) disposed at the bottom of the surface of the reciprocating screw rod (222), wherein the bevel gear (224) is located below the mounting frame (221), and an internal threaded sleeve block (223) disposed on the surface of the reciprocating screw rod (222), wherein one end of the bottom of the internal threaded sleeve block (223) and the top of the pulling rod (217) are connected to each other; The synchronization component (23) comprises a mounting side plate (231) arranged at the top of both sides of one end of the treatment pool (1), a rotating rod (232) arranged on one side of two sets of the mounting side plates (231) close to each other, and one end of the rotating rod (232) passes through a set of mounting side plates (231), a plurality of sets of bevel gears (233) arranged on the surface of the rotating rod (232), and the bevel gears (233) and the bevel gears (224) mesh with each other, and a motor (234) arranged on one side of the treatment pool (1); The reflux oxygenation assembly (24) comprises a one-way valve four (241) arranged in the inner cavity of the connecting hole (214), a one-way valve five (242) arranged at the top of the oxygenation chamber (211) away from the one-way valve four (241), and a delivery pipe (243) arranged at the end of the one-way valve five (242) away from the oxygenation chamber (211), and the end of the delivery pipe (243) away from the one-way valve five (242) and the connecting pipe (215) are connected to each other.

2. The self-oxygenating microbial sewage treatment system according to claim 1, characterized in that: The mixing component (3) comprises two groups of mounting top bins (31) arranged at the top of the treatment tank (1), a movable opening (34) arranged at the bottom of the mounting top bin (31), two reciprocating screw rods (32) arranged at both sides of the inner cavity of the mounting top bin (31), one end of the two reciprocating screw rods (32) extending to the outside of the mounting top bin (31), a second internal threaded sleeve block (33) arranged on the surface of the second reciprocating screw rod (32), a rotating bottom rod (35) arranged at the bottom of the second internal threaded sleeve block (33), and the rotating bottom rod (35) extending to the inner cavity of the treatment tank (1) through the movable opening (34), a plurality of groups of mixing blades (36) arranged on the surface of the rotating bottom rod (35), and a linkage assembly (39) arranged on the second reciprocating screw rod (32).

3. The self-oxygenating microbial sewage treatment system according to claim 2, characterized in that: The mixing component (3) further comprises a rack (38) arranged at one end of the bottom of the mounting top bin (31), and a gear (37) arranged above the mixing blades (36) on the surface of the rotating bottom rod (35), wherein the gear (37) and the rack (38) are meshed with each other.

4. The self-oxygenating microbial sewage treatment system according to claim 3 is characterized in that: The linkage assembly (39) comprises a double-groove pulley (391) arranged at one end of the reciprocating screw rod (32) located outside the mounting top bin (31), a pulley (392) arranged at another end of the reciprocating screw rod (32) located outside the mounting top bin (31) and at one end of the surface of the rotating rod (232), and two sets of transmission belts (393) arranged on the surface of the double-groove pulley (391), and the two sets of transmission belts (393) are respectively sleeved with the two sets of pulleys (392).

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