A high-efficiency nitrification and denitrification process

Abstract

The present invention discloses a main unit, comprising a denitrification tank, to which a nitrification tank and multiple water reservoirs are fixedly connected; a purification unit, comprising multiple baffles; a water outlet pipe fixedly connected to the bottom of the right wall of the denitrification tank; and multiple water supply pipes symmetrically fixedly connected to the left wall of the denitrification tank. The bottom of the denitrification tank is provided with a quartz sand layer, a water discharge assembly is provided in the denitrification tank, a power assembly is provided on the denitrification tank, and a transmission assembly is provided between the power assembly and the water discharge assembly; and a cleaning unit, comprising a filter screen, a brush rod movably provided in the water reservoir, a movable assembly for driving the brush rod is provided in the water reservoir, and a flushing assembly is provided between the water reservoir and the denitrification tank. The present invention flushes the quartz sand layer by activating a water pump, and the brush rod clears impurities discharged from the filter screen to the right. The operation is simple and convenient, ensuring the denitrification effect of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to a high-efficiency nitrification and denitrification process. Background Art

[0002] The nitrification-denitrification process is a biological denitrification technology used in wastewater treatment, particularly suitable for removing nitrogen from wastewater to prevent environmental pollution. This process primarily consists of two phases: nitrification and denitrification. Nitrification involves nitrifying bacteria converting ammonia in the water into nitrates. Denitrification then converts the nitrates into nitrogen gas for discharge.

[0003] When conducting denitrification reactions, most existing devices have a quartz sand layer laid at the bottom. The amount of sewage accumulated in the denitrification tank is large, causing the bottom sewage to be quickly squeezed out and the passage rate to be fast, resulting in incomplete denitrification. At the same time, after a long period of use, a large amount of impurities will accumulate in the quartz sand inside the denitrification tank, resulting in a reduction in the denitrification effect. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A high-efficiency nitrification and denitrification process uses a nitrification and denitrification device, which includes a main unit, a purification unit, and a cleaning unit. The specific process when using the nitrification and denitrification device is as follows:

[0007] S1, water is supplied to the nitrification tank through the water inlet pipe, and gas is supplied to the nitrification tank through the air inlet pipe and the gas supply pipe;

[0008] S2. The supernatant of the sewage after the reaction is completed is transported to the denitrification tank through the water pipe;

[0009] S3. Start the motor to drive the rotating shaft to rotate, which in turn drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, which in turn drives the worm to rotate, which in turn drives the reciprocating screw to rotate, which in turn drives the shaped plate to rotate. The shaped plate cooperates with the round rod to drive the round rod to move up and down, which in turn drives the piston plate to move up and down, so that the sewage can be intermittently transported to the denitrification tank;

[0010] S4. The wastewater after the reaction is completed is transported between the two partitions through the pipe and then discharged from the outlet pipe;

[0011] S5. When it is necessary to clean the impurities in the denitrification tank, the wheel is rotated to drive the threaded rod to rotate, so that the rectangular plate moves upward and opens it;

[0012] S6. Start the water pump to transport the cleaning liquid in the reservoir to the denitrification tank to flush the quartz sand layer, so that impurities are flushed out and mixed with the flushing liquid. The impurities are discharged into the reservoir through the rectangular opening, filtered through the filter screen, and then pumped into the denitrification tank again for flushing;

[0013] S7, the reciprocating screw rotates, driving the movable sleeve to move left and right, and driving the brush rod to move left and right through the vertical rod. When the brush rod moves back to the left, the second annular sleeve moves upward along the oblong slide groove, driving the vertical rod to move upward, so that the brush rod is lifted, moves to the leftmost side, and then drops again to fit with the filter screen, cleaning the impurities on the filter screen to the right;

[0014] The main unit includes a denitrification tank, the denitrification tank is fixedly connected to a nitrification tank and multiple water storage tanks, the nitrification tank is fixedly connected to a water inlet pipe, the bottom of the denitrification tank is fixedly connected to an aeration assembly, the denitrification tank is fixedly connected to an outlet pipe, and the outlet pipe is provided with a second one-way valve;

[0015] The purification unit includes a plurality of baffles fixedly connected to the inner wall of the denitrification tank, a water outlet pipe fixedly connected to the bottom of the right wall of the denitrification tank, a plurality of water supply pipes symmetrically fixedly connected to the left wall of the denitrification tank, a quartz sand layer provided at the bottom of the denitrification tank, a drainage assembly provided in the denitrification tank, a plurality of through pipes fixedly connected to the bottom of the baffles, and a third one-way valve provided in each through pipe; a power assembly provided on the denitrification tank, and a transmission assembly provided between the power assembly and the drainage assembly;

[0016] The sewage cleaning unit includes a filter screen, which is fixedly connected to the inner wall of the water reservoir. A door body is slidably provided on the water reservoir. An opening and closing component is provided on the right wall of the denitrification tank. A brush rod is movably provided in the water reservoir. A movable component for driving the brush rod to move is provided in the water reservoir. A flushing component is provided between the water reservoir and the denitrification tank.

[0017] As a preferred embodiment of the high-efficiency nitrification and denitrification process of the present invention, the aeration assembly includes an air inlet pipe, which is arranged on the left side of the nitrification tank. An air supply pipe is symmetrically fixedly connected to the air inlet pipe, and a first one-way valve is provided on the air supply pipe. The air supply pipe is fixedly inserted into the nitrification tank, and a plurality of air outlet holes are opened on the bottom surface of the air supply pipe.

[0018] As a preferred solution of the high-efficiency nitrification and denitrification process described in the present invention, the water discharge assembly includes a piston plate, which is slidably connected to the inner wall of a water pipe, the water pipe is provided with multiple openings, a round rod is fixedly connected to the bottom surface of the piston plate, a plurality of reciprocating screws are rotatably inserted through the denitrification tank, a special-shaped plate is fixedly connected to the reciprocating screw, the special-shaped plate is provided with a notch, and the special-shaped plate cooperates with the round rod.

[0019] As a preferred solution of the high-efficiency nitrification and denitrification process described in the present invention, the power component includes a mounting frame, the mounting frame is fixedly connected to the denitrification tank, a motor is provided on the mounting frame, the output end of the motor is fixedly connected to a rotating shaft, and the rotating shaft rotates and penetrates the mounting frame.

[0020] As a preferred solution of the high-efficiency nitrification and denitrification process described in the present invention, the transmission assembly includes two worms, which are rotatably inserted into the partition and rotatably connected to the inner wall of the denitrification tank. A first bevel gear is fixedly connected to the rotating shaft, a second bevel gear is fixedly connected to the worm, the second bevel gear is meshed with the first bevel gear, and a worm wheel is fixedly connected to the reciprocating screw, which is meshed with the worm wheel.

[0021] As a preferred solution of the high-efficiency nitrification and denitrification process described in the present invention, the opening and closing component includes a rectangular plate, a rectangular opening is provided on the right side wall of the denitrification tank, a groove is provided on the top wall of the rectangular opening, the rectangular plate is slidably connected to the inner wall of the groove, a threaded rod is threadedly inserted into the denitrification tank, the bottom end of the threaded rod is rotatably connected to the rectangular plate, and a runner is fixedly connected to the threaded rod.

[0022] As a preferred solution of the high-efficiency nitrification and denitrification process described in the present invention, the movable component includes a movable sleeve, the movable sleeve is threadedly connected to the reciprocating screw, the movable sleeve is fixedly connected to a first annular sleeve, the inner wall of the water reservoir is symmetrically provided with an oblong chute, the inner wall of the oblong chute is slidably connected to a second annular sleeve, the brush rod is fixedly connected to a vertical rod, the vertical rod is slidably connected to the inner wall of the first annular sleeve, and the vertical rod is fixedly connected to the second annular sleeve.

[0023] As a preferred solution of the high-efficiency nitrification and denitrification process described in the present invention, the flushing component includes two water pumps, which are arranged on the front and rear sides of the denitrification tank. A first connecting pipe is fixedly connected to the water reservoir, and a second connecting pipe is fixedly connected to the denitrification tank. The water inlet and outlet ends of the water pump are fixedly connected to the first connecting pipe and the second connecting pipe respectively.

[0024] Beneficial effects of the present invention:

[0025] Starting the motor drives the rotating shaft to rotate, causing the first bevel gear to rotate, causing the second bevel gear to rotate, driving the worm to rotate, causing the worm wheel to rotate, driving the reciprocating screw to rotate, driving the special-shaped plate to rotate, and through the cooperation of the special-shaped plate and the round rod, driving the round rod to move up and down, causing the piston plate to move up and down, so that the sewage can be intermittently transported to the denitrification tank, controlling the water flow rate, avoiding excessive water storage in the denitrification tank, and allowing the sewage in the denitrification tank to fully react.

[0026] Start the water pump to transport the cleaning liquid in the water reservoir to the denitrification tank to flush the quartz sand layer, so that the impurities are flushed up and mixed with the flushing liquid and discharged into the water reservoir through the rectangular port, filtered through the filter screen, and then pumped into the denitrification tank for flushing again. The reciprocating screw rotates, driving the movable sleeve to move left and right, and driving the brush rod to move left and right through the vertical rod. When the brush rod moves back to the left, the second annular sleeve moves upward along the oblong slide, driving the vertical rod to move upward, so that the brush rod is lifted, and after moving to the far left, it drops again to fit the filter screen, and the impurities discharged from the filter screen are cleaned to the right. The operation is simple and convenient, ensuring the denitrification effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0028] Figure 1 This is a schematic diagram of the overall front structure of a nitrification and denitrification device used in a high-efficiency nitrification and denitrification process proposed by the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the local cross-section structure;

[0030] Figure 3 for Figure 2 Schematic diagram of the local cross-section structure;

[0031] Figure 4 for Figure 1 Schematic diagram of the local cross-section structure;

[0032] Figure 5 for Figure 1 Schematic diagram of the local structure;

[0033] Figure 6 for Figure 5 Schematic diagram of the local cross-sectional structure.

[0034] In the figure: 100, main unit; 101, denitrification tank; 102, nitrification tank; 103, water inlet pipe; 104, water reservoir; 105, aeration assembly; 105a, air inlet pipe; 105b, air delivery pipe; 105c, first one-way valve; 200, purification unit; 201, partition; 202, water delivery pipe; 203, quartz sand layer; 204, water discharge assembly; 204a, piston plate; 204b, opening; 204c, round rod; 204d, reciprocating screw; 204e, special-shaped plate; 205, through pipe; 206, power assembly; 206a, mounting bracket; 206b, motor; 206c, rotating shaft; 207, transmission Moving assembly; 207a, worm; 207b, first bevel gear; 207c, second bevel gear; 207d, worm gear; 300, cleaning unit; 301, filter; 302, door body; 303, opening and closing assembly; 303a, rectangular plate; 303b, rectangular opening; 303c, threaded rod; 303d, rotating wheel; 304, brush rod; 305, movable assembly; 305a, movable sleeve; 305b, first annular sleeve; 305c, second annular sleeve; 305d, vertical rod; 305e, oblong slide; 306, flushing assembly; 306a, water pump; 306b, first connecting pipe; 306c, second connecting pipe. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. 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.

[0037] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0038] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0039] Reference Figure 1-6The present invention provides a high-efficiency nitrification and denitrification process, which uses a nitrification and denitrification device. The nitrification and denitrification device includes a main unit 100, a purification unit 200 and a cleaning unit 300. The specific process when using the above nitrification and denitrification device is as follows:

[0040] S1, water is supplied to the nitrification tank 102 through the water inlet pipe 103, and gas is supplied to the nitrification tank 102 through the air inlet pipe 105a and the air delivery pipe 105b;

[0041] S2. The supernatant of the sewage after the reaction is completed is transported to the denitrification tank 101 through the water pipe 202;

[0042] S3. Start the motor 206b, driving the rotating shaft 206c to rotate, causing the first bevel gear 207b to rotate, causing the second bevel gear 207c to rotate, driving the worm 207a to rotate, causing the worm wheel 207d to rotate, driving the reciprocating screw 204d to rotate, driving the shaped plate 204e to rotate, and through the cooperation between the shaped plate 204e and the round rod 204c, driving the round rod 204c to move up and down, causing the piston plate 204a to move up and down, so that the sewage can be intermittently transported into the denitrification tank 101;

[0043] S4, the wastewater after the reaction is completed is transported between the two partitions 201 through the pipe 205 and then discharged from the outlet pipe;

[0044] S5. When it is necessary to clean the impurities in the denitrification tank 101, the rotating wheel 303d is rotated to drive the threaded rod 303c to rotate, so that the rectangular plate 303a moves upward and opens it;

[0045] S6. Start the water pump 306a to transport the cleaning liquid in the water reservoir 104 to the denitrification tank 101 to flush the quartz sand layer 203, so that impurities are flushed out and mixed with the flushing liquid. The impurities are discharged into the water reservoir 104 through the rectangular opening 303b, filtered through the filter screen 301, and then pumped back into the denitrification tank 101 for flushing.

[0046] S7, the reciprocating screw 204d rotates, driving the movable sleeve 305a to move left and right, and driving the brush rod 304 to move left and right through the vertical rod 305d. When the brush rod 304 moves back to the left, the second annular sleeve 305c moves upward along the oblong slide 305e, driving the vertical rod 305d to move upward, so that the brush rod 304 is lifted, moves to the leftmost side, and then descends again to fit with the filter screen 301, cleaning the impurities on the filter screen 301 to the right;

[0047] The main unit 100 includes a denitrification tank 101, to which a nitrification tank 102 and a plurality of water reservoirs 104 are fixedly connected. The nitrification tank 102 is fixedly connected to a water inlet pipe 103. The bottom of the denitrification tank 101 is fixedly connected to an aeration assembly 105. The denitrification tank 101 is fixedly connected to an outlet pipe, and the outlet pipe is provided with a second one-way valve.

[0048] The purification unit 200 includes a plurality of baffles 201 fixedly connected to the inner wall of the denitrification tank 101. A water outlet pipe is fixedly connected to the bottom of the right wall of the denitrification tank 101. A plurality of water pipes 202 are symmetrically fixedly connected to the left wall of the denitrification tank 101. A quartz sand layer 203 is provided at the bottom of the denitrification tank 101. A water discharge assembly 204 is provided in the denitrification tank 101. A plurality of through pipes 205 are fixedly connected to the bottom of the baffles 201. A third one-way valve is provided in the through pipes 205. A power assembly 206 is provided on the denitrification tank 101. A transmission assembly 207 is provided between the power assembly 206 and the water discharge assembly 204.

[0049] The cleaning unit 300 includes a filter 301, which is fixedly connected to the inner wall of the water reservoir 104. A door 302 is slidably provided on the water reservoir 104. An opening and closing component 303 is provided on the right wall of the denitrification tank 101. A brush rod 304 is movably provided in the water reservoir 104. A movable component 305 for driving the brush rod 304 to move is provided in the water reservoir 104. A flushing component 306 is provided between the water reservoir 104 and the denitrification tank 101.

[0050] Among them, the aeration assembly 105 includes an air inlet pipe 105a, which is arranged on the left side of the nitrification tank 102. The air inlet pipe 105a is symmetrically fixedly connected to the air supply pipe 105b, and the air supply pipe 105b is provided with a first one-way valve 105c. The air supply pipe 105b is fixedly inserted into the nitrification tank 102, and a plurality of air outlet holes are opened on the bottom surface of the air supply pipe 105b. The user connects the air inlet pipe 105a with the external pipeline to inject air into the air inlet pipe 105a to increase the oxygen content in the nitrification tank 102.

[0051] Furthermore, the water discharge assembly 204 includes a piston plate 204a, which is slidably connected to the inner wall of the water pipe 202. A plurality of openings 204b are provided on the water pipe 202. A round rod 204c is fixedly connected to the bottom surface of the piston plate 204a. A plurality of reciprocating screws 204d are rotatably inserted into the denitrification tank 101. A special-shaped plate 204e is fixedly connected to the reciprocating screw 204d. The special-shaped plate 204e is provided with a notch. The special-shaped plate 204e cooperates with the round rod 204c. When the reciprocating screw 204d rotates, the special-shaped plate 204e can be driven to rotate. Through the cooperation between the special-shaped plate 204e and the round rod 204c, the round rod 204c is driven to move up and down, causing the piston plate 204a to move up and down, so that the sewage can be intermittently transported to the denitrification tank 101.

[0052] Furthermore, the power component 206 includes a mounting frame 206a, which is fixedly connected to the denitrification tank 101. A motor 206b is provided on the mounting frame 206a. The output end of the motor 206b is fixedly connected to a rotating shaft 206c. The rotating shaft 206c rotates and is inserted into the mounting frame 206a. By starting the motor 206b, the rotating shaft 206c can be driven to rotate, thereby driving the device to operate.

[0053] Furthermore, the transmission assembly 207 includes two worms 207a, which are rotated and inserted on the partition 201, and the worm 207a is rotatably connected to the inner wall of the denitrification tank 101. A first bevel gear 207b is fixedly connected to the rotating shaft 206c, and a second bevel gear 207c is fixedly connected to the worm 207a, and the second bevel gear 207c is meshed with the first bevel gear 207b. A worm wheel 207d is fixedly connected to the reciprocating screw 204d, and the worm wheel 207d is meshed with the worm 207a. When the rotating shaft 206c rotates, it drives the first bevel gear 207b to rotate, so that the second bevel gear 207c rotates, drives the worm 207a to rotate, and drives the worm wheel 207d to rotate, which drives the reciprocating screw 204d to rotate.

[0054] Furthermore, the opening and closing component 303 includes a rectangular plate 303a, a rectangular opening 303b is provided on the right side wall of the denitrification tank 101, a groove is provided on the top wall of the rectangular opening 303b, the rectangular plate 303a is slidably connected to the inner wall of the groove, a threaded rod 303c is threadedly inserted into the denitrification tank 101, the bottom end of the threaded rod 303c is rotatably connected to the rectangular plate 303a, and a wheel 303d is fixedly connected to the threaded rod 303c. The user can rotate the wheel 303d to drive the threaded rod 303c to rotate, so that the rectangular plate 303a moves up and down to open and close it.

[0055] Furthermore, the movable assembly 305 includes a movable sleeve 305a, which is threadedly connected to the reciprocating screw 204d, and a first annular sleeve 305b is fixedly connected to the movable sleeve 305a. An oblong chute 305e is symmetrically opened on the inner wall of the water reservoir 104, and a second annular sleeve 305c is slidably connected to the inner wall of the oblong chute 305e. A vertical rod 305d is fixedly connected to the brush rod 304, and the vertical rod 305d is slidably connected to the inner wall of the first annular sleeve 305b. It is fixedly connected to the second annular sleeve 305c, so that when the reciprocating screw 204d rotates, it can drive the movable sleeve 305a to move left and right, and drive the brush rod 304 to move left and right through the vertical rod 305d. When the brush rod 304 moves back to the left, the second annular sleeve 305c moves upward along the oblong groove 305e, driving the vertical rod 305d to move upward, so that the brush rod 304 is lifted, and after moving to the far left, it descends again to fit with the filter screen 301, cleaning the impurities on the filter screen 301 to the right.

[0056] Furthermore, the flushing component 306 includes two water pumps 306a, which are arranged on the front and rear sides of the denitrification tank 101. A first connecting pipe 306b is fixedly connected to the water reservoir 104, and a second connecting pipe 306c is fixedly connected to the denitrification tank 101. The water inlet and outlet ends of the water pump 306a are fixedly connected to the first connecting pipe 306b and the second connecting pipe 306c respectively. The user can start the water pump 306a to transport the cleaning liquid in the water reservoir 104 to the denitrification tank 101 to flush the quartz sand layer 203.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. 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 high-efficiency nitrification and denitrification process, which uses a nitrification and denitrification device, the nitrification and denitrification device comprising a main unit (100), a purification unit (200) and a cleaning unit (300), characterized in that: The specific process when using the above-mentioned nitrification and denitrification device is as follows: S1, supplying water to the nitrification tank (102) through the water inlet pipe (103), and supplying gas to the nitrification tank (102) through the air inlet pipe (105a) and the air supply pipe (105b); S2. The supernatant of the wastewater after the reaction is completed is transported to the denitrification tank (101) through the water pipe (202); S3, starting the motor (206b), driving the rotating shaft (206c) to rotate, causing the first bevel gear (207b) to rotate, causing the second bevel gear (207c) to rotate, driving the worm (207a) to rotate, causing the worm wheel (207d) to rotate, driving the reciprocating screw (204d) to rotate, driving the special-shaped plate (204e) to rotate, and through the cooperation between the special-shaped plate (204e) and the round rod (204c), driving the round rod (204c) to move up and down, causing the piston plate (204a) to move up and down, so that the sewage can be intermittently transported into the denitrification tank (101); S4. The wastewater after the reaction is transported between the two partitions (201) through the through pipe (205) and then discharged through the outlet pipe; S5. When impurities in the denitrification tank (101) need to be cleaned, the rotating wheel (303d) is rotated to drive the threaded rod (303c) to rotate, so that the rectangular plate (303a) moves upward and opens it; S6. Start the water pump (306a) to transport the cleaning liquid in the water reservoir (104) into the denitrification tank (101) to flush the quartz sand layer (203), so that impurities are flushed away, mixed with the flushing liquid, and discharged into the water reservoir (104) through the rectangular opening (303b), filtered through the filter (301), and then pumped into the denitrification tank (101) for flushing again; S7, the reciprocating screw (204d) rotates, driving the movable sleeve (305a) to move left and right, and driving the brush rod (304) to move left and right through the vertical rod (305d), and when the brush rod (304) moves back to the left, the second annular sleeve (305c) moves upward along the oblong slide groove (305e), driving the vertical rod (305d) to move upward, so that the brush rod (304) is lifted, moves to the leftmost side, and then descends again to fit with the filter screen (301), cleaning impurities on the filter screen (301) to the right; The main unit (100) comprises a denitrification tank (101), wherein the denitrification tank (101) is fixedly connected to a nitrification tank (102) and a plurality of water storage tanks (104), the nitrification tank (102) is fixedly connected to a water inlet pipe (103), the bottom of the denitrification tank (101) is fixedly connected to an aeration assembly (105), and the denitrification tank (101) is fixedly connected to an air outlet pipe, wherein a second one-way valve is provided on the air outlet pipe; The purification unit (200) comprises a plurality of baffles (201), wherein the baffles (201) are fixedly connected to the inner wall of the denitrification tank (101), a water outlet pipe is fixedly connected to the bottom of the right wall of the denitrification tank (101), a plurality of water delivery pipes (202) are symmetrically fixedly connected to the left wall of the denitrification tank (101), a quartz sand layer (203) is provided at the bottom of the denitrification tank (101), a water discharge assembly (204) is provided in the denitrification tank (101), a plurality of through pipes (205) are fixedly connected to the bottom of the baffles (201), and a third one-way valve is provided in the through pipe (205); a power assembly (206) is provided on the denitrification tank (101), and a transmission assembly (207) is provided between the power assembly (206) and the water discharge assembly (204); A cleaning unit (300) includes a filter (301), the filter (301) being fixedly connected to the inner wall of a water reservoir (104), a door (302) being slidably provided on the water reservoir (104), an opening and closing assembly (303) being provided on the right side wall of the denitrification tank (101), a brush rod (304) being movably provided in the water reservoir (104), a movable assembly (305) for driving the brush rod (304) to move being provided in the water reservoir (104), and a flushing assembly (306) being provided between the water reservoir (104) and the denitrification tank (101); The water discharge assembly (204) comprises a piston plate (204a), the piston plate (204a) being slidably connected to the inner wall of a water pipe (202), the water pipe (202) being provided with a plurality of openings (204b), a round rod (204c) being fixedly connected to the bottom surface of the piston plate (204a), a plurality of reciprocating screws (204d) being rotatably inserted through the denitrification tank (101), a special-shaped plate (204e) being fixedly connected to the reciprocating screws (204d), a notch being provided on the special-shaped plate (204e), and the special-shaped plate (204e) being matched with the round rod (204c).

2. A high-efficiency nitrification and denitrification process according to claim 1, characterized in that: The aeration assembly (105) comprises an air inlet pipe (105a), the air inlet pipe (105a) being arranged on the left side of the nitrification tank (102), an air delivery pipe (105b) being symmetrically fixedly connected to the air inlet pipe (105a), the air delivery pipe (105b) being provided with a first one-way valve (105c), the air delivery pipe (105b) being fixedly inserted into the nitrification tank (102), and a plurality of air outlet holes being provided on the bottom surface of the air delivery pipe (105b).

3. A high-efficiency nitrification and denitrification process according to claim 2, characterized in that: The power assembly (206) comprises a mounting frame (206a), the mounting frame (206a) being fixedly connected to the denitrification tank (101), a motor (206b) being provided on the mounting frame (206a), a rotating shaft (206c) being fixedly connected to an output end of the motor (206b), and the rotating shaft (206c) being rotatably inserted into the mounting frame (206a).

4. A high-efficiency nitrification and denitrification process according to claim 3, characterized in that: The transmission assembly (207) includes two worms (207a), the worms (207a) are rotatably inserted into the partition (201), and the worms (207a) are rotatably connected to the inner wall of the denitrification tank (101). A first bevel gear (207b) is fixedly connected to the rotating shaft (206c), a second bevel gear (207c) is fixedly connected to the worm (207a), and the second bevel gear (207c) is meshed with the first bevel gear (207b). A worm wheel (207d) is fixedly connected to the reciprocating screw (204d), and the worm wheel (207d) is meshed with the worm (207a).

5. A high-efficiency nitrification and denitrification process according to claim 4, characterized in that: The opening and closing assembly (303) comprises a rectangular plate (303a), a rectangular opening (303b) is provided on the right side wall of the denitrification tank (101), a groove is provided on the top wall of the rectangular opening (303b), the rectangular plate (303a) is slidably connected to the inner wall of the groove, a threaded rod (303c) is threadedly inserted through the denitrification tank (101), the bottom end of the threaded rod (303c) is rotatably connected to the rectangular plate (303a), and a rotating wheel (303d) is fixedly connected to the threaded rod (303c).

6. A high-efficiency nitrification and denitrification process according to claim 5, characterized in that: The movable component (305) comprises a movable sleeve (305a), the movable sleeve (305a) being threadedly connected to the reciprocating screw (204d), the movable sleeve (305a) being fixedly connected to a first annular sleeve (305b), an oblong chute (305e) being symmetrically provided on the inner wall of the water reservoir (104), a second annular sleeve (305c) being slidably connected to the inner wall of the oblong chute (305e), a vertical rod (305d) being fixedly connected to the brush rod (304), the vertical rod (305d) being slidably connected to the inner wall of the first annular sleeve (305b), and the vertical rod (305d) being fixedly connected to the second annular sleeve (305c).

7. A high-efficiency nitrification and denitrification process according to claim 6, characterized in that: The flushing assembly (306) comprises two water pumps (306a), the two water pumps (306a) being arranged on the front and rear sides of the denitrification tank (101), a first connecting pipe (306b) being fixedly connected to the water reservoir (104), a second connecting pipe (306c) being fixedly connected to the denitrification tank (101), and a water inlet end and a water outlet end of the water pump (306a) being fixedly connected to the first connecting pipe (306b) and the second connecting pipe (306c), respectively.

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