A sewage purifier

Abstract

The sewage purifier comprises a shell, a stirrer, a diffuser, a dissolved oxygen device, a biochemical reaction assembly, a reinforced filter assembly and a suction mechanism, an anaerobic tank, an aerobic tank and a reinforced tank are sequentially arranged in the shell and are communicated with each other, a communication gap is arranged between the anaerobic tank, the aerobic tank and the reinforced tank and the top plate of the shell, a first exhaust passage, a second exhaust passage and an air inlet passage are arranged on the top plate of the shell, a water inlet is arranged on the side wall of the shell, and a water outlet is arranged on the side wall of the shell; the stirrer is arranged in the anaerobic tank; the diffuser is arranged in the aerobic tank and is connected with the air inlet passage; the dissolved oxygen device is arranged in the aerobic tank below the diffuser and can move up and down, and the dissolved oxygen device is communicated with the anaerobic tank; the biochemical reaction assembly is arranged in the aerobic tank below the dissolved oxygen device; the reinforced filter assembly is arranged in the reinforced tank; and the suction mechanism comprises a first air ball and a second air ball, the first air ball is arranged at the upper end of the first exhaust passage, the first air ball is connected with the stirrer, and the second air ball is arranged at the upper end of the second exhaust passage.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater purifier. Background Technology

[0002] Wastewater treatment equipment is an industrial device that effectively treats domestic sewage and industrial wastewater in urban and rural areas, preventing sewage and pollutants from directly flowing into water bodies. It plays a vital role in improving the ecological environment, enhancing the city's image, and promoting economic development. Underground wastewater treatment equipment is suitable for residential communities, hospitals, sanatoriums, office buildings, shopping malls, hotels, restaurants, government offices, schools, military units, seafood processing plants, livestock processing plants, dairy processing plants, and other similar industrial organic wastewater, such as organic wastewater from the textile, brewing, papermaking, leather, food, and chemical industries. Its main purpose is to treat domestic sewage and similar industrial organic wastewater to meet reuse water quality requirements, enabling the resource utilization of treated wastewater.

[0003] In existing technologies, sewage treatment equipment requires the laying of sewage pipes. However, laying sewage pipes makes the operation and maintenance of sewage treatment equipment more complicated and troublesome. Secondly, problems such as blockage and leakage of sewage pipes occur frequently, which further leads to secondary pollution of the environment. Furthermore, sewage treatment equipment cannot be mass-produced, has unstable quality, short service life, and long construction cycle, which increases production costs. Finally, there are also problems such as difficulty in using electricity, high noise, and breeding of mosquitoes and flies. Summary of the Invention

[0004] To address at least one of the problems mentioned in the background section, the present invention aims to provide a wastewater purifier.

[0005] This invention is achieved through the following technical solution:

[0006] A wastewater purifier, comprising:

[0007] The shell contains an anaerobic tank, an aerobic tank, and an enhanced tank that are connected in sequence. Each of the anaerobic tank, the aerobic tank, and the enhanced tank has a communication gap with the top plate of the shell. The top plate of the shell has a first exhaust channel connecting the anaerobic tank, a second exhaust channel connecting the enhanced tank, and an air inlet channel connecting the aerobic tank. The side wall of the shell has an inlet connecting the anaerobic tank and an outlet connecting the enhanced tank.

[0008] A stirrer is provided inside the anaerobic tank;

[0009] A diffuser is provided in the aerobic tank to diffuse air, and the diffuser is connected to the air inlet channel;

[0010] An oxygenator is provided in the aerobic tank below the diffuser to oxygenate the wastewater. The oxygenator is connected to the anaerobic tank.

[0011] A biochemical reaction component is located in the aerobic tank below the dissolved oxygenator to participate in the biochemical reaction to purify wastewater;

[0012] An enhanced filtration assembly is disposed within the enhanced tank to filter wastewater;

[0013] A suction mechanism, comprising a first air ball and a second air ball, wherein the first air ball is disposed at the upper end of the first exhaust channel and is connected to the stirrer to provide driving force, and the second air ball is disposed at the upper end of the second exhaust channel;

[0014] In the initial state, the oxygenator and the diffuser abut against each other to close the air intake channel. When the first and second air balls rotate, causing the air inside the shell to be discharged, a negative pressure is formed inside the shell. When the amount of sewage in the anaerobic tank reaches a certain value, the anaerobic tank is connected to the oxygenator. When the amount of sewage in the oxygenator reaches its maximum value, the oxygenator moves down away from the diffuser, so that the air intake channel is connected to the aerobic tank and the oxygenator is connected to the aerobic tank. When the amount of sewage in the aerobic tank reaches a certain value, the aerobic tank is connected to the enhancement tank. When the amount of sewage in the enhancement tank reaches a certain value, the sewage flows out from the outlet.

[0015] Optionally, the dissolved oxygenator includes a connecting pipe, a first connector, a second connector, and a spring. The connecting pipe passes through the lower end of the diffuser, and one end of the connecting pipe is connected to the anaerobic tank. The first connector is connected to the connecting pipe. The second connector is movably sleeved on the first connector. A spring is provided between the second connector and the first connector. The second connector has a receiving cavity penetrating its upper surface. The receiving cavity is connected to the connecting pipe. The outer contour of the upper end of the second connector is adapted to the inner wall contour of the diffuser. When the amount of sewage in the receiving cavity reaches a certain amount, the second connector sinks under the action of gravity, compressing the spring and causing the second connector to move away from the diffuser. When the amount of sewage in the receiving cavity does not reach a certain amount, the spring resets and pushes the second connector upward, causing the second connector to abut against the diffuser.

[0016] Optionally, the biochemical reaction assembly includes a first honeycomb support plate, multiple packing protective shells, and multiple porous coupled high-efficiency biological packing materials. The first honeycomb support plate is disposed in the aerobic pool to divide the aerobic pool below the dissolved oxygenator vertically. The packing protective shells are all stacked on the first honeycomb support plate, and the multiple porous coupled high-efficiency biological packing materials are disposed in the packing protective shells.

[0017] Optionally, the enhanced filtration assembly includes a second honeycomb support plate and a plurality of enhanced fillers. The second honeycomb support plate is disposed in the enhanced pool to divide the enhanced pool vertically. The plurality of enhanced fillers are stacked on the second honeycomb support plate, and each of the enhanced fillers is disposed in the enhanced pool below the outlet.

[0018] Optionally, a water pipe is provided between the aerobic tank and the enhancement tank. The water pipe is an n-shaped pipe. The upper end of the water pipe is located in the aerobic tank below the diffuser, one lower end of the water pipe is located in the aerobic tank below the biochemical reaction component, and the other lower end of the water pipe is located in the enhancement tank below the enhanced filtration component. The upper end face and both lower end faces of the water pipe are provided with through holes.

[0019] Optionally, the shell has a cavity, and the bottom of the cavity has a first isolation plate and a second isolation plate to separate the anaerobic tank, the aerobic tank and the enhanced tank.

[0020] Optionally, an air intake shroud is fitted over the upper end of the air intake channel.

[0021] Optionally, the agitator is a three-blade agitator, and a first force transmission rod is provided between the three-blade agitator and the first air ball.

[0022] Optionally, it also includes a first fitness equipment and a second fitness equipment, both of which are located on the ground outside the housing. Both the first fitness equipment and the second fitness equipment are provided with a second force transmission rod, and the second wind ball is provided with a third force transmission rod. Both the first force transmission rod and the third force transmission rod are provided with couplings, and the couplings are connected to the second force transmission rod.

[0023] Optionally, it also includes an impact inlet, which is an L-shaped tubular structure. The short end of the impact inlet is located in the anaerobic tank near the bottom plate of the shell. The long end of the impact inlet is connected to the inlet. A gravity baffle is provided in the long end of the impact inlet below the inlet. When the weight of the sewage above the gravity baffle reaches a certain amount, the gravity baffle flips down to open the impact inlet. When the weight of the sewage on the gravity baffle does not reach a certain amount, the gravity baffle flips up to close the impact inlet.

[0024] The beneficial effects of this invention are as follows: The wastewater purifier of this invention solves the technical problems of complex and troublesome operation and maintenance, long construction period, difficulty in power supply, and high noise in the existing wastewater treatment equipment, and achieves the following beneficial effects: This wastewater purifier adopts a clever mechanical structure and relies on wind power to drive the facility to perform forced exhaust, so that a certain negative pressure is formed in the equipment. At the same time, oxygen is dissolved under the action of pulse oxygenator to meet the biochemical conditions of the aerobic pool. The working noise is low, and the construction period is short because it is not affected by the terrain. It realizes the on-site treatment and on-site discharge of domestic sewage from single-household residences. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a wastewater purifier provided according to an embodiment of the present invention;

[0027] Figure 2 This is a partial structural schematic diagram of a wastewater purifier provided according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the above-ground portion of a wastewater purifier according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the underground portion of a wastewater purifier according to an embodiment of the present invention;

[0030] The components include: 1. Shell; 2. Agitator; 3. Diffuser; 4. Oxygenator; 5. Biochemical reaction assembly; 6. Enhanced filtration assembly; 7. Suction mechanism; 8. First fitness equipment; 9. Second fitness equipment; 10. Impact inlet; 11. Anaerobic tank; 12. Aerobic tank; 13. Enhanced tank; 14. First exhaust channel; 15. Second exhaust channel; 16. Air inlet channel; 17. Inlet; 18. Outlet; 19. First baffle plate; 20. Second baffle plate; 41. 42. Connecting pipe; 43. First connecting piece; 44. Second connecting piece; 55. Spring; 56. First honeycomb support plate; 57. Packing protective shell; 58. Porous coupled high-efficiency biological packing; 69. Second honeycomb support plate; 60. Reinforced packing; 71. First wind ball; 72. Second wind ball; 81. Second force transmission rod; 82. Coupling; 101. Gravity baffle plate; 121. Water pipe; 161. Air inlet hood; 711. First force transmission rod; 721. Third force transmission rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] The following is for reference Figure 1-4 A wastewater purifier according to an embodiment of the present invention will be described in detail below.

[0033] like Figure 1-4As shown, a wastewater purifier according to an embodiment of the present invention includes a shell 1, a stirrer 2, a diffuser 3, an oxygenator 4, a biochemical reaction assembly 5, an enhanced filtration assembly 6, and a suction mechanism 7. The shell 1 contains an anaerobic tank 11, an aerobic tank 12, and an enhanced filtration tank 13 connected sequentially. Each of the anaerobic tank 11, the aerobic tank 12, and the enhanced filtration tank 13 has a communication gap with the top plate of the shell 1. The top plate of the shell 1 has a first exhaust channel 14 connecting the anaerobic tank 11, a second exhaust channel 15 connecting the enhanced filtration tank 13, and a channel connecting the aerobic tank 13. The air intake channel 16 of the shell 12; the inlet 17 on the side wall of the shell 1 connects to the anaerobic tank 11; the outlet 18 on the side wall of the shell 1 connects to the enhanced tank 13; the stirrer 2 is located inside the anaerobic tank 11; the diffuser 3 is located inside the aerobic tank 12 to diffuse air, and the diffuser 3 is connected to the air intake channel 16; the dissolved oxygenator 4 is vertically movable and located inside the aerobic tank 12 below the diffuser 3 to oxygenate the wastewater, and the dissolved oxygenator 4 is connected to the anaerobic tank 11; the biochemical reaction component 5 is located below the dissolved oxygenator 4. The aerobic tank 12 is used to purify wastewater through biochemical reactions; the enhanced filtration assembly 6 is installed in the enhanced tank 13 to filter wastewater; the suction mechanism 7 includes a first air ball 71 and a second air ball 72, the first air ball 71 is located at the upper end of the first exhaust channel 14 and is connected to the stirrer 2 to provide driving force, and the second air ball 72 is located at the upper end of the second exhaust channel 15; wherein, in the initial state, the oxygenator 4 abuts against the diffuser 3 to close the air intake channel 16, and the first air ball 71 and the second air ball 72... When the rotation causes the air inside the shell 1 to be discharged, a negative pressure is formed inside the shell 1. When the amount of sewage in the anaerobic tank 11 reaches a certain value, the anaerobic tank 11 is connected to the dissolved oxygenator 4. When the amount of sewage in the dissolved oxygenator 4 reaches its maximum value, the dissolved oxygenator 4 moves down away from the diffuser 3, so that the air inlet channel 16 is connected to the aerobic tank 12 and the dissolved oxygenator 4 is connected to the aerobic tank 12. When the amount of sewage in the aerobic tank 12 reaches a certain value, the aerobic tank 12 is connected to the enhanced tank 13. When the amount of sewage in the enhanced tank 13 reaches a certain value, the sewage flows out from the outlet 18.

[0034] It should be noted that the first wind ball 71 and the second wind ball 72 can be made of stainless steel; in this embodiment, preferably, the height of the first wind ball 71 and the second wind ball 72 is 1.8-2.5m, the area of ​​the connecting gap is 2.5㎡, and the volume of the connecting gap is no greater than 1m³. 3 The oxygenator 4 can be any model suitable for dissolving oxygen in the aerobic tank 12, such as a pulse oxygenator.

[0035] Therefore, the wastewater purifier of the present invention solves the technical problems of complex and troublesome operation and maintenance, long construction period, difficulty in power supply and high noise in the existing wastewater treatment equipment, and achieves the following beneficial effects: The wastewater purifier adopts a clever mechanical structure and relies on wind power to drive the facility to perform forced exhaust, so that a certain negative pressure is formed in the equipment. At the same time, oxygen is dissolved under the action of the dissolved oxygenator 4 to meet the biochemical conditions of the aerobic pool 12. The working noise is low, and the construction period is short because it is not affected by the terrain. It realizes the on-site treatment and on-site discharge of domestic sewage from a single household.

[0036] In one embodiment, the oxygenator 4 includes a connecting pipe 41, a first connector 42, a second connector 43, and a spring 44. The connecting pipe 41 passes through the lower end of the diffuser 3, and one end of the connecting pipe 41 is connected to the anaerobic tank 11. The first connector 42 is connected to the connecting pipe 41. The second connector 43 is movably sleeved on the first connector 42. A spring 44 is provided between the second connector 43 and the first connector 42. The second connector 43 has a cavity penetrating its upper surface and is connected to the connecting pipe 41. The outer contour of the upper end of the second connector 43 is adapted to the inner wall contour of the diffuser 3. When the amount of sewage in the cavity reaches a certain amount, the second connector 43 sinks under gravity, compressing the spring 44 and causing the second connector 43 to move away from the diffuser 3. When the amount of sewage in the cavity does not reach a certain amount, the spring 44 resets and pushes the second connector 43 upward, causing the second connector 43 to abut against the diffuser 3. It should be noted that when the second connector 43 sinks, the sewage temporarily stored in the cavity diffuses out. When it flows out, the contact area with the incoming air is the largest, and the instantaneous flow rate is fast, resulting in the greatest oxygen carrying capacity. Since there is a certain height difference between the oxygenator 4 and the bottom of the aerobic tank 12, there is a cascading effect when the diffused sewage comes into contact with the water surface, which helps to increase the dissolved oxygen efficiency.

[0037] In one embodiment, the biochemical reaction assembly 5 includes a first honeycomb support plate 51, multiple packing protective shells 52, and multiple porous coupled high-efficiency biological packing materials 53. The first honeycomb support plate 51 is disposed within the aerobic tank 12, dividing the aerobic tank 12 below the dissolved oxygenator 4 vertically. The packing protective shells 52 are all stacked on the first honeycomb support plate 51, and the multiple porous coupled high-efficiency biological packing materials 53 are disposed within the packing protective shells 52. This protects the porous coupled high-efficiency biological packing materials 53 while ensuring that wastewater reacts fully with the porous coupled high-efficiency biological packing materials 53 before flowing into the enhancement tank 13.

[0038] In one embodiment, the enhanced filtration assembly 6 includes a second honeycomb support plate 61 and a plurality of enhanced filler materials 62. The second honeycomb support plate 61 is disposed within the enhanced tank 13, dividing the enhanced tank 13 vertically. The plurality of enhanced filler materials 62 are stacked on the second honeycomb support plate 61, with each enhanced filler material 62 disposed within the enhanced tank 13 below the outlet 18. This allows wastewater to fully react with the enhanced filler materials 62 before flowing out.

[0039] In one embodiment, a water pipe 121 is provided between the aerobic tank 12 and the enhanced tank 13. The water pipe 121 is an n-shaped pipe. The upper end of the water pipe 121 is located in the aerobic tank 12 below the diffuser 3, one lower end of the water pipe 121 is located in the aerobic tank 12 below the biochemical reaction component 5, and the other lower end of the water pipe 121 is located in the enhanced tank 13 below the enhanced filtration component 6. The upper end face and both lower end faces of the water pipe 121 are provided with through holes. Thus, the aerobic tank 12 and the enhanced tank 13 can be connected simultaneously through the water pipe 121, and the wastewater purified by the aerobic tank 12 can be oxygenated at the same time.

[0040] In one embodiment, the shell 1 has a cavity, and the bottom of the cavity is provided with a first partition plate 19 and a second partition plate 20 to separate the anaerobic tank 11, the aerobic tank 12, and the enhancement tank 13. Thus, the anaerobic tank 11, the aerobic tank 12, and the enhancement tank 13 can be conveniently arranged within the shell 1.

[0041] In one embodiment, an air intake shroud 161 is fitted over the upper end of the air intake channel 16. This prevents garbage, dust, and rainwater from falling directly into the air intake channel 16 and contaminating the equipment.

[0042] In one embodiment, the agitator 2 is a three-bladed agitator 2, and a first force transmission rod 711 is provided between the three-bladed agitator 2 and the first wind ball 71. Thus, wind energy can be used to simultaneously power the agitator 2.

[0043] In one embodiment, the device further includes a first fitness equipment 8 and a second fitness equipment 9. Both the first fitness equipment 8 and the second fitness equipment 9 are located on the ground outside the housing 1. Both the first fitness equipment 8 and the second fitness equipment 9 are provided with a second force transmission rod 81. The second wind ball 72 is provided with a third force transmission rod 721. Both the first force transmission rod 711 and the third force transmission rod 721 are provided with a coupling 82. The coupling 82 is connected to the second force transmission rod 81.

[0044] It should be noted that the first fitness equipment 8 and the second fitness equipment 9 can be any fitness equipment with a rotating shaft. In this embodiment, preferably, the first fitness equipment 8 and the second fitness equipment 9 are elliptical trainers. The elliptical trainer is equipped with a second force transmission rod 81. When a person holds the handrail and walks back and forth on it, the top of the second force transmission rod 81, the first transmission rod, and the third force transmission rod 721 drive the stirrer 2 to rotate through the coupling 82. Thus, when in a windless and temperature-different environment, the second force transmission rod 81 can be rotated manually, thereby driving the first fan ball 71, the second fan ball 72, and the stirrer 2 to rotate, thus exercising at the same time.

[0045] In one embodiment, the system further includes an impact inlet 10, which is an L-shaped tubular structure. The short end of the impact inlet 10 is located in the anaerobic tank 11 near the bottom plate of the shell 1. The long end of the impact inlet 10 is connected to the inlet 17. A gravity baffle 101 is provided in the long end of the impact inlet 10 located below the inlet 17. When the weight of the sewage above the gravity baffle 101 reaches a certain amount, the gravity baffle 101 flips down to open the impact inlet 10. When the weight of the sewage on the gravity baffle 101 does not reach a certain amount, the gravity baffle 101 flips up to close the impact inlet 10. It should be noted that the gravity baffle 101 can be reset by being driven by an elastic element or by its own elasticity. Thus, by a certain instantaneous impact, it enters the anaerobic tank 11, preventing sedimentation at the bottom of the anaerobic tank 11 and playing a certain role in stirring.

[0046] like Figure 1-4 As shown, an optional working process of the wastewater purifier in this invention is as follows:

[0047] In the initial state, the first wind ball 71 and the second wind ball 72 rotate to drive the air in the housing 1 out, the oxygenator 4 abuts against the diffuser 3, and a negative pressure is formed in the housing 1.

[0048] Wastewater enters the impact inlet 17 and is stored in the impact inlet 10 until a certain amount is reached. Then, the gravity baffle 101 tilts down, and the wastewater flows into the anaerobic tank 11. The wastewater undergoes anaerobic digestion through storage in the anaerobic tank 11 and stirring by the stirrer 2. When the water level in the anaerobic tank 11 rises to the connecting pipe 41, the wastewater enters the receiving cavity through the connecting hole. When the wastewater in the receiving cavity reaches a certain amount, the second connecting piece 43 presses down the spring 44, and the wastewater falls into the aerobic tank 12. 2. The wastewater is stored in full contact with the porous coupled high-efficiency biological packing material 53 to carry out nitrification reaction. The water level in the aerobic tank 12 increases at the same time as the water level in the water pipe 121 increases. When the water level in the water pipe 121 increases to the point that it overflows from one end of the enhanced tank 13, the wastewater flows into the bottom of the enhanced tank 13 for storage. During the rise of the water level in the enhanced tank 13, the wastewater comes into full contact with the enhanced packing material 62 to react and be purified again. When the water level in the enhanced tank 13 rises to the outlet 18, the purified wastewater flows out from the outlet 18.

[0049] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0050] Furthermore, the terms "first" and "another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In the description of this specification, references to terms such as "an embodiment," "an example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater purifier, characterized in that, include: The shell contains an anaerobic tank, an aerobic tank, and an enhanced tank that are connected in sequence. Each of the anaerobic tank, the aerobic tank, and the enhanced tank has a communication gap with the top plate of the shell. The top plate of the shell has a first exhaust channel connecting the anaerobic tank, a second exhaust channel connecting the enhanced tank, and an air inlet channel connecting the aerobic tank. The side wall of the shell has an inlet connecting the anaerobic tank and an outlet connecting the enhanced tank. A stirrer is provided inside the anaerobic tank; A diffuser is provided in the aerobic tank to diffuse air, and the diffuser is connected to the air inlet channel; An oxygenator is provided in the aerobic tank below the diffuser to oxygenate the wastewater. The oxygenator is connected to the anaerobic tank. A biochemical reaction component is located in the aerobic tank below the dissolved oxygenator to participate in the biochemical reaction to purify wastewater; An enhanced filtration assembly is disposed within the enhanced tank to filter wastewater; A suction mechanism, comprising a first air ball and a second air ball, wherein the first air ball is disposed at the upper end of the first exhaust channel and is connected to the stirrer to provide driving force, and the second air ball is disposed at the upper end of the second exhaust channel; In the initial state, the oxygenator and the diffuser abut against each other to close the air intake channel. When the first and second air balls rotate and drive the air in the shell to be discharged, a negative pressure is formed in the shell. When the amount of sewage in the anaerobic tank reaches a certain value, the anaerobic tank is connected to the oxygenator. When the amount of sewage in the oxygenator reaches its maximum value, the oxygenator moves down away from the diffuser so that the air intake channel is connected to the aerobic tank and the oxygenator is connected to the aerobic tank. When the amount of sewage in the aerobic tank reaches a certain value, the aerobic tank is connected to the enhancement tank. When the amount of sewage in the enhancement tank reaches a certain value, the purified sewage flows out from the outlet. The dissolved oxygenator includes a connecting pipe, a first connector, a second connector, and a spring. The connecting pipe passes through the lower end of the diffuser, and one end of the connecting pipe is connected to the anaerobic tank. The first connector is connected to the connecting pipe. The second connector is movably sleeved on the first connector. A spring is provided between the second connector and the first connector. The second connector has a cavity penetrating its upper surface. The cavity is connected to the connecting pipe. The outer contour of the upper end of the second connector is adapted to the inner wall contour of the diffuser. When the amount of sewage in the cavity reaches a certain level, the second connector sinks under gravity, compressing the spring and causing the second connector to move away from the diffuser. When the amount of sewage in the cavity does not reach a certain level, the spring resets and pushes the second connector upward, causing the second connector to abut against the diffuser.

2. The wastewater purifier according to claim 1, characterized in that, The biochemical reaction assembly includes a first honeycomb support plate, multiple packing protective shells, and multiple porous coupled high-efficiency biological packing materials. The first honeycomb support plate is disposed in the aerobic pool to divide the aerobic pool below the dissolved oxygenator vertically. The packing protective shells are all stacked on the first honeycomb support plate, and the multiple porous coupled high-efficiency biological packing materials are disposed in the packing protective shells.

3. The wastewater purifier according to claim 1, characterized in that, The enhanced filtration assembly includes a second honeycomb support plate and multiple enhanced fillers. The second honeycomb support plate is disposed in the enhanced pool to divide the enhanced pool vertically. The multiple enhanced fillers are stacked on the second honeycomb support plate, and each enhanced filler is disposed in the enhanced pool below the outlet.

4. The wastewater purifier according to claim 1, characterized in that, A water pipe is provided between the aerobic tank and the enhancement tank. The water pipe is an n-shaped pipe. The upper end of the water pipe is located in the aerobic tank below the diffuser, one lower end of the water pipe is located in the aerobic tank below the biochemical reaction component, and the other lower end of the water pipe is located in the enhancement tank below the enhanced filtration component. The upper end face and both lower end faces of the water pipe are provided with through holes.

5. The wastewater purifier according to claim 1, characterized in that, The shell has a cavity, and the bottom of the cavity is provided with a first isolation plate and a second isolation plate to separate the anaerobic tank, the aerobic tank and the enhanced tank.

6. The wastewater purifier according to claim 1, characterized in that, An air intake shroud is fitted over the upper end of the air intake channel.

7. The wastewater purifier according to claim 1, characterized in that, The agitator is a three-blade agitator, and a first force transmission rod is provided between the three-blade agitator and the first air ball.

8. The wastewater purifier according to claim 7, characterized in that, It also includes a first fitness equipment and a second fitness equipment. Both the first fitness equipment and the second fitness equipment are located on the ground outside the housing. Both the first fitness equipment and the second fitness equipment are provided with a second force transmission rod. The second wind ball is provided with a third force transmission rod. Both the first force transmission rod and the third force transmission rod are provided with a coupling. The coupling is connected to the second force transmission rod.

9. The wastewater purifier according to claim 1, characterized in that, It also includes an impact inlet, which is an L-shaped tubular structure. The short end of the impact inlet is located in the anaerobic tank near the bottom plate of the shell. The long end of the impact inlet is connected to the inlet. A gravity baffle is provided in the long end of the impact inlet below the inlet. When the weight of the sewage above the gravity baffle reaches a certain amount, the gravity baffle flips down to open the impact inlet. When the weight of the sewage on the gravity baffle does not reach a certain amount, the gravity baffle flips up to close the impact inlet.

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