Integrated wastewater treatment system and method

Abstract

The application relates to the technical field of sewage treatment, and provides an integrated sewage treatment system and method, which comprises a grid pool and a disinfection pool; one side of the grid pool is connected with an adjusting structure through a valve; one end of the grid pool is connected with an anoxic pool through a valve; one end, away from the grid pool, of the anoxic pool is connected with an oxidation pool through a valve; and one end, away from the anoxic pool, of the oxidation pool is connected with a sedimentation pool through a valve. The filter structure is arranged, the filter plate is fixed in the grid pool through the limiting seat, sewage is discharged into the grid pool through the water inlet pipe, the sewage passes through the valve into the anoxic pool through the filter groove, the larger impurities in the water are filtered by the filter plate, and the impurities accumulated in the grid pool can be cleaned by tools during the working process, so that the device has the energy-saving function, and the applicability of the integrated sewage treatment system during use is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to an integrated wastewater treatment system and method. Background Technology

[0002] With the continuous development of society, the discharge of industrial wastewater and domestic sewage is increasing day by day. Direct discharge will pollute the environment and waste water resources. Therefore, integrated sewage treatment systems and methods are used to purify sewage so that water resources can be recycled.

[0003] To address this, patent CN114477638A discloses an integrated wastewater treatment system and method, including an inlet pipe connected to a storage tank at one end. Above the storage tank is a dewatering mechanism for separating impurities from wastewater, and below the dewatering mechanism is a mesh conveyor belt. The dewatering mechanism causes wastewater to fall into the storage tank via the conveyor belt. The storage tank is sequentially connected to a primary sedimentation tank, a first-stage contact tank, a second-stage contact tank, a sedimentation tank, a sludge tank, and a disinfection tank. The disinfection tank is connected to an outlet pipe. A water pump is installed in the primary sedimentation tank, an aerator in the second-stage contact tank, and a sludge lifting pump in the sedimentation tank. A drainage branch pipe is installed on the outlet pipe, and a detection device is installed below the drainage branch pipe. This integrated wastewater treatment system and method can separate wastewater and impurities before wastewater purification, eliminating the need for a secondary sedimentation tank, reducing costs, shortening the wastewater treatment cycle, and allowing direct testing of the purified water. It is easy to use.

[0004] In the above-mentioned integrated sewage treatment system and method, the device drives the extrusion plate to move up and down and reciprocate in the cylinder through the cylinder. The cylinder is equipped with a flip-up pressure plate below the extrusion plate. Impurities carrying sewage enter the cylinder at the feed funnel and are squeezed onto the pressure plate by the extrusion plate to complete the separation of sewage and impurities. The solid-liquid separation method adopted requires the cylinder to work continuously, which consumes a lot of energy and makes it less applicable in use. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated wastewater treatment system and method to address the shortcomings of existing integrated wastewater treatment systems and methods in terms of poor energy efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an integrated sewage treatment system and method, including a screen tank and a disinfection tank;

[0007] One side of the bar screen is connected to an adjustment structure via a valve, one end of the bar screen is connected to an anoxic tank via a valve, the end of the anoxic tank away from the bar screen is connected to an oxidation tank via a valve, the end of the oxidation tank away from the anoxic tank is connected to a sedimentation tank via a valve, the end of the sedimentation tank away from the aeration structure is connected to a disinfection tank via a valve, and the top of the disinfection tank away from the sedimentation tank is connected to a drain pipe.

[0008] The top of the grid pool is connected to an inlet pipe at the end away from the anoxic pool. A filter structure is evenly arranged inside the grid pool on the side near the anoxic pool. The filter structure includes a filter plate, a limiting seat, and a filter groove. The filter plate is evenly arranged inside the grid pool on the side near the anoxic pool. Limiting seats are fixed on the inner walls of the grid pool on both sides of the filter plate. Filter grooves are evenly arranged inside the filter plate. A stirring structure is arranged inside the anoxic pool.

[0009] The oxidation tank is equipped with an aeration structure, the sedimentation tank is uniformly equipped with a flow-blocking structure, and the disinfection tank is equipped with a sterilization structure at the top.

[0010] Preferably, the aeration structure includes an aerator, an aeration seat, an air chamber, and air holes. The aerator is installed on the outer wall of the bottom of the oxidation tank, the aeration seat is installed at the bottom of the oxidation tank, the aeration seat has an air chamber inside, and air holes are evenly distributed on the outer side of the air chamber inside the aeration seat.

[0011] Preferably, the output end of the aerator extends into the interior of the oxidation tank and is connected to the aeration seat, and the air holes are evenly distributed inside the aeration seat.

[0012] Preferably, the flow-blocking structure includes a flow-blocking plate, a connecting block, and a flow-diverting plate. The flow-blocking plate is evenly arranged inside the sedimentation tank. A connecting block is fixed at the corner position on one side of the flow-blocking plate, and a flow-diverting plate is fixed at one end of the connecting block on the same side of the flow-blocking plate.

[0013] Preferably, the flow-blocking plate has a V-shaped cross-section when viewed from above, one side of the flow-diverting plate is fixedly connected to the inner wall of the sedimentation tank, and the connecting block is located on the concave surface of the flow-blocking plate.

[0014] Preferably, the stirring structure includes a first cover, a drive motor, a stirring shaft, and stirring rods. The first cover is installed at the top of the anoxic tank, and the drive motor is installed at the middle position of the top of the first cover. The stirring shaft is located at the middle position inside the anoxic tank, and stirring rods are uniformly fixed on the outer wall of the stirring shaft.

[0015] Preferably, the top end of the stirring shaft passes through the first cover and is fixedly connected to the output end of the drive motor, and the stirring rods are evenly distributed on the outer wall of the stirring shaft.

[0016] Preferably, the regulating structure includes an regulating tank, a water pump, and a transfer pipe. The regulating tank is connected to one side of the bar screen tank via a valve. A water pump is installed inside the regulating tank. A transfer pipe is installed at the output end of the water pump, and the top end of the transfer pipe extends into the interior of the bar screen tank.

[0017] Preferably, the sterilization structure includes a second cover, an ultraviolet germicidal lamp, and a lamp holder. The second cover is installed on the top of the disinfection pool, and lamp holders are evenly installed on both sides of the bottom end of the second cover, with an ultraviolet germicidal lamp installed between adjacent lamp holders.

[0018] The operation method of an integrated wastewater treatment system includes the following steps:

[0019] S1. Fix the filter plate inside the grit chamber using the limiting seat. Discharge the sewage into the grit chamber through the inlet pipe. The sewage will pass through the filter tank and the valve into the anoxic tank. Larger impurities in the water will be filtered out by the filter plate.

[0020] S2. When the anoxic tank is full, the wastewater in the grit chamber will be transported to the equalization tank through the valve. When the anoxic tank is open to flow, the water pump will be started and the wastewater in the equalization tank will be transported to the grit chamber through the transfer pipe.

[0021] S3. The anoxic tank is a sealed environment with no air supply, thus providing an anoxic environment. After the sewage is transported to the inside of the grit chamber, there are a large number of anaerobic bacteria in the sludge. Under anoxic conditions, they will degrade organic matter into biogas and water. The drive motor is started, and the drive motor will drive the stirring rod through the stirring shaft to stir the sewage inside the anoxic tank, so that the sewage and sludge are mixed and a high concentration of suspended solids is maintained. It can also prevent sludge from accumulating and increase the sediment depth.

[0022] S4. Arrange the structural layer and packing layer on the inside of the oxidation tank. The sewage in the anoxic tank is transported to the inside of the oxidation tank through the valve. Start the aerator. The aerator will fill the air chamber with air and discharge the gas into the oxidation tank through the air hole to aerate the sewage. After being oxygenated, the sewage to be treated flows through the packing at a certain flow rate and comes into contact with the biofilm. The biofilm and the suspended activated sludge work together to purify the sewage.

[0023] S5. The wastewater after aeration is transported to the interior of the sedimentation tank through the valve. The water flow will impact the concave side of the baffle plate, causing the water flow to surge in opposite directions to both sides. Under the action of the diversion plate, the water flow will reverse again. The baffle plate and the diversion plate are evenly distributed inside the grit tank, causing the water flow to turn back and forth, consuming the impact speed of the water flow, causing the water to rise naturally, and accelerating the sedimentation speed of impurities in the water.

[0024] S6. After sedimentation, the water is transported to the interior of the disinfection tank through a valve. The ultraviolet germicidal lamp is connected to the power supply, and the ultraviolet germicidal lamp will sterilize the water inside the disinfection tank before it is discharged from the drain pipe.

[0025] The integrated wastewater treatment system and method provided by this invention have the following advantages:

[0026] By setting up a filtration structure, the filter plate is fixed inside the grit chamber by a limiting seat. Wastewater is discharged into the grit chamber through the inlet pipe. The wastewater will pass through the filter tank and valve into the anoxic tank. Larger impurities in the water will be filtered out by the filter plate. During operation, the impurities accumulated inside the grit chamber can also be cleaned with tools. This device has an energy-saving function, thereby improving the applicability of the integrated wastewater treatment system in use.

[0027] With the flow-blocking structure in place, the aerated wastewater is transported to the interior of the sedimentation tank through valves. The water flow impacts the concave side of the flow-blocking plate, causing the water flow to surge in opposite directions. Under the action of the diversion plate, the water flow is reversed again. The flow-blocking plate and the diversion plate are evenly distributed inside the grit tank, causing the water flow to turn back and forth, consuming the impact velocity of the water flow, and causing the water to rise naturally, which accelerates the sedimentation speed of impurities in the water, thereby improving the working efficiency of the integrated wastewater treatment system during use.

[0028] With the addition of an adjustment mechanism, when the anoxic tank is full, the wastewater in the grit chamber is transported to the regulating tank through a valve. When the anoxic tank is open for flow, the water pump is activated, which then transports the wastewater from the regulating tank to the grit chamber through a transfer pipe. This allows the device to easily adjust the water volume, thereby improving the stability of the integrated wastewater treatment system during use. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0031] Figure 3 This is a side cross-sectional view of the bar grid structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the side cross-sectional structure of the anoxic pool of the present invention;

[0033] Figure 5 This is a schematic diagram of the side cross-sectional structure of the oxidation tank of the present invention;

[0034] Figure 6 This is a schematic diagram of the main cross-sectional structure of the sedimentation tank of the present invention;

[0035] Figure 7 This is a schematic diagram of the disinfection pool structure from below;

[0036] Figure 8 This is a schematic diagram of the rear cross-sectional structure of the regulating tank of the present invention.

[0037] The following are the annotations in the diagram: 1. Grille tank; 2. Anoxic tank; 3. Oxidation tank; 4. Aeration structure; 401. Aerator; 402. Aeration seat; 403. Air chamber; 404. Air hole; 5. Sedimentation tank; 6. Disinfection tank; 7. Drainage pipe; 8. Flow-blocking structure; 801. Flow-blocking plate; 802. Connecting block; 803. Diverter plate; 9. Stirring structure; 901. First cover; 902. Drive motor; 903. Stirring shaft; 904. Stirring rod; 10. Filtration structure; 1001. Filter plate; 1002. Limiting seat; 1003. Filter tank; 11. Adjustment structure; 1101. Adjustment tank; 1102. Water pump; 1103. Transfer pipe; 12. Inlet pipe; 13. Sterilization structure; 1301. Second cover; 1302. Ultraviolet germicidal lamp; 1303. Lamp holder. Detailed Implementation

[0038] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-8 The integrated sewage treatment system and method provided by the present invention includes a screen tank 1 and a disinfection tank 6.

[0040] Reference Figure 1 and Figure 8 As shown, one side of the bar screen 1 is connected to an adjustment structure 11 via a valve. The adjustment structure 11 includes an adjustment tank 1101, a water pump 1102, and a transfer pipe 1103. The adjustment tank 1101 is connected to one side of the bar screen 1 via a valve. The water pump 1102 is installed inside the adjustment tank 1101. The output end of the water pump 1102 is connected to the transfer pipe 1103, and the top end of the transfer pipe 1103 extends into the interior of the bar screen 1.

[0041] When the anoxic tank 2 is full, the sewage in the grit chamber 1 will be transported to the regulating tank 1101 through the valve. When the anoxic tank 2 is open to flow, the water pump 1102 will be started. The water pump 1102 will transport the sewage in the regulating tank 1101 to the grit chamber 1 through the transfer pipe 1103.

[0042] Reference Figure 2 and Figure 3 As shown, one end of the bar screen 1 is connected to the anoxic tank 2 via a valve. The end of the anoxic tank 2 away from the bar screen 1 is connected to the oxidation tank 3 via a valve. The end of the oxidation tank 3 away from the anoxic tank 2 is connected to the sedimentation tank 5 via a valve. The end of the sedimentation tank 5 away from the aeration structure 4 is connected to the disinfection tank 6 via a valve. The top of the disinfection tank 6 away from the sedimentation tank 5 is connected to the drain pipe 7. The top of the bar screen 1 away from the anoxic tank 2 is connected to the inlet pipe 12. A filter structure 10 is evenly arranged inside the bar screen 1 on the side near the anoxic tank 2. The filter structure 10 includes a filter plate 1001, a limiting seat 1002, and a filter groove 1003. The filter plate 1001 is evenly arranged inside the bar screen 1 on the side near the anoxic tank 2. The limiting seat 1002 is fixed on the inner wall of the bar screen 1 on both sides of the filter plate 1001. The filter groove 1003 is evenly arranged inside the filter plate 1001.

[0043] The filter plate 1001 is fixed inside the grit chamber 1 by the limiting seat 1002. Wastewater is discharged into the grit chamber 1 through the inlet pipe 12. The wastewater will pass through the filter tank 1003 and the valve into the anoxic tank 2. Larger impurities in the water will be filtered out by the filter plate 1001.

[0044] Reference Figure 2 and Figure 4 As shown, the anoxic tank 2 is equipped with a stirring structure 9. The stirring structure 9 includes a first cover 901, a drive motor 902, a stirring shaft 903, and stirring rods 904. The first cover 901 is installed at the top of the anoxic tank 2. The drive motor 902 is installed at the middle position of the top of the first cover 901. The stirring shaft 903 is located at the middle position inside the anoxic tank 2. Stirring rods 904 are evenly fixed on the outer wall of the stirring shaft 903. The top of the stirring shaft 903 passes through the first cover 901 and is fixedly connected to the output end of the drive motor 902. The stirring rods 904 are evenly distributed on the outer wall of the stirring shaft 903.

[0045] The anoxic tank 2 is a sealed environment with no air supply, thus providing an anoxic environment. After the sewage is transported to the inside of the grit chamber 1, there are a large number of anaerobic bacteria in the sludge. Under anoxic conditions, they will degrade organic matter into biogas and water. The drive motor 902 is started, and the drive motor 902 will drive the stirring rod 904 through the stirring shaft 903 to stir the sewage inside the anoxic tank 2, so that the sewage and sludge are mixed and a high concentration of suspended solids is maintained. It can also prevent sludge accumulation and increase the sediment depth.

[0046] Reference Figure 2 and Figure 5As shown, the oxidation tank 3 is equipped with an aeration structure 4. The aeration structure 4 includes an aerator 401, an aeration seat 402, an air chamber 403, and air holes 404. The aerator 401 is installed on the outer wall of the bottom of the oxidation tank 3. The aeration seat 402 is installed at the bottom of the oxidation tank 3. The aeration seat 402 is equipped with an air chamber 403 inside. Air holes 404 are evenly distributed on the outer side of the air chamber 403 inside the aeration seat 402. The output end of the aerator 401 extends into the interior of the oxidation tank 3 and is connected to the aeration seat 402. The air holes 404 are evenly distributed inside the aeration seat 402.

[0047] A structural layer and a packing layer are arranged on the inside of oxidation tank 3. Wastewater from anoxic tank 2 is transported to oxidation tank 3 through valves. Aerator 401 is started, which inflates the air chamber 403 and discharges the gas into oxidation tank 3 through air holes 404 to aerate the wastewater. After being oxygenated, the wastewater flows through the packing at a certain flow rate, comes into contact with the biofilm, and the biofilm and suspended activated sludge work together to purify the wastewater.

[0048] Reference Figure 1 , Figure 2 and Figure 6 As shown, a flow-blocking structure 8 is uniformly fixed inside the sedimentation tank 5. The flow-blocking structure 8 includes a flow-blocking plate 801, a connecting block 802, and a flow-diverting plate 803. The flow-blocking plate 801 is uniformly arranged inside the sedimentation tank 5. A connecting block 802 is fixed at the corner position on one side of the flow-blocking plate 801. A flow-diverting plate 803 is fixed at one end of the connecting block 802 on the same side of the flow-blocking plate 801. The top view cross section of the flow-blocking plate 801 is designed in a "V" shape. One side of the flow-diverting plate 803 is fixedly connected to the inner wall of the sedimentation tank 5. The connecting block 802 is located on the concave surface of the flow-blocking plate 801.

[0049] After aeration, the wastewater is transported to the interior of sedimentation tank 5 through a valve. The water flow impacts the concave side of the baffle plate 801, causing the water flow to surge in opposite directions. Under the action of the diversion plate 803, the water flow reverses again. The baffle plate 801 and the diversion plate 803 are evenly distributed inside the grit tank 1, causing the water flow to turn back and forth, consuming the impact velocity of the water flow, causing the water to rise naturally, and accelerating the sedimentation speed of impurities in the water.

[0050] Reference Figure 7 As shown, a sterilization structure 13 is provided on the top of the disinfection pool 6. The sterilization structure 13 includes a second cover 1301, an ultraviolet germicidal lamp 1302, and a lamp holder 1303. The second cover 1301 is installed on the top of the disinfection pool 6. Lamp holders 1303 are evenly installed on both sides of the bottom end of the second cover 1301, and an ultraviolet germicidal lamp 1302 is provided between adjacent lamp holders 1303.

[0051] After sedimentation, the water is transported to the interior of the disinfection tank 6 through a valve. The ultraviolet germicidal lamp 1302 is connected to a power source, and the ultraviolet germicidal lamp 1302 will sterilize the water inside the disinfection tank 6 and then discharge it from the drain pipe 7.

[0052] The operation method of an integrated wastewater treatment system includes the following steps:

[0053] S1. The filter plate 1001 is fixed inside the grit tank 1 by the limiting seat 1002. The sewage is discharged into the grit tank 1 through the inlet pipe 12. The sewage will pass through the filter tank 1003 and enter the anoxic tank 2 through the valve. Larger impurities in the water will be filtered out by the filter plate 1001.

[0054] S2. When the anoxic tank 2 is full, the sewage in the grit chamber 1 will be transported to the regulating tank 1101 through the valve. When the anoxic tank 2 is circulated, the water pump 1102 will be started. The water pump 1102 will transport the sewage in the regulating tank 1101 to the grit chamber 1 through the transfer pipe 1103.

[0055] S3. The interior of the anoxic tank 2 is a sealed environment with no air supply, thus providing an anoxic environment. After the sewage is transported to the interior of the grit tank 1, there are a large number of anaerobic bacteria in the sludge. Under anoxic conditions, the organic matter will be degraded into biogas and water. The drive motor 902 is started, and the drive motor 902 will drive the stirring rod 904 through the stirring shaft 903 to stir the sewage inside the anoxic tank 2, so that the sewage and sludge are mixed and a high concentration of suspended solids is maintained. It can also prevent sludge accumulation and increase the sediment depth.

[0056] S4. Arrange the structural layer and the packing layer on the inside of the oxidation tank 3. The sewage inside the anoxic tank 2 is transported to the inside of the oxidation tank 3 through the valve. Start the aerator 401. The aerator 401 will fill the air chamber 403 with air, and the gas will be discharged into the oxidation tank 3 through the air hole 404 to aerate the sewage. After being oxygenated, the sewage to be treated flows through the packing at a certain flow rate, comes into contact with the biofilm, and the biofilm and the suspended activated sludge work together to purify the sewage.

[0057] S5. The wastewater after aeration is transported to the interior of sedimentation tank 5 through a valve. The water flow will impact the concave side of the baffle plate 801, causing the water flow to surge in opposite directions to both sides. Under the action of the diversion plate 803, the water flow will reverse again. The baffle plate 801 and the diversion plate 803 are evenly distributed inside the grit tank 1, causing the water flow to turn back and forth, consuming the impact speed of the water flow, causing the water to rise naturally, and accelerating the sedimentation speed of impurities in the water.

[0058] S6. After sedimentation, the water is transported to the interior of the disinfection tank 6 through the valve. The ultraviolet germicidal lamp 1302 is connected to the power supply. The ultraviolet germicidal lamp 1302 will sterilize the water inside the disinfection tank 6 and then discharge it from the drain pipe 7.

[0059] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated wastewater treatment system, including a screen tank (1) and a disinfection tank (6); Its features are: One side of the bar screen (1) is connected to an adjustment structure (11) via a valve. The adjustment structure (11) includes an adjustment tank (1101), a water pump (1102), and a transfer pipe (1103). The adjustment tank (1101) is connected to one side of the bar screen (1) via a valve. The water pump (1102) is installed inside the adjustment tank (1101). The output end of the water pump (1102) is connected to a transfer pipe (1103), and the top end of the transfer pipe (1103) extends to... Inside the grit chamber (1), one end of the grit chamber (1) is connected to an anoxic tank (2) through a valve, the end of the anoxic tank (2) away from the grit chamber (1) is connected to an oxidation tank (3) through a valve, the end of the oxidation tank (3) away from the anoxic tank (2) is connected to a sedimentation tank (5) through a valve, the end of the sedimentation tank (5) away from the aeration structure (4) is connected to a disinfection tank (6) through a valve, and the top of the disinfection tank (6) away from the sedimentation tank (5) is connected to a drain pipe (7). The top of the grid pool (1) is connected to an inlet pipe (12) at the end away from the anoxic pool (2). A filter structure (10) is uniformly arranged inside the grid pool (1) on the side near the anoxic pool (2). The filter structure (10) includes a filter plate (1001), a limiting seat (1002), and a filter groove (1003). The filter plate (1001) is uniformly arranged inside the grid pool (1) on the side near the anoxic pool (2). A limiting seat (1002) is fixed on the inner wall of the grid pool (1) on both sides of the filter plate (1001). A filter groove (1003) is uniformly arranged inside the filter plate (1001). A stirring structure (9) is arranged inside the anoxic pool (2). The oxidation tank (3) is equipped with an aeration structure (4) inside. The sedimentation tank (5) is uniformly fixed with a flow-blocking structure (8). The flow-blocking structure (8) includes a flow-blocking plate (801), a connecting block (802), and a flow-dividing plate (803). The flow-blocking plate (801) is uniformly arranged inside the sedimentation tank (5). A connecting block (802) is fixed at the corner position on one side of the flow-blocking plate (801). A flow-dividing plate (803) is fixed at one end of the connecting block (802) on the same side of the flow-blocking plate (801). The top view cross section of the flow-blocking plate (801) is designed in a "V" shape. One side of the flow-dividing plate (803) is fixedly connected to the inner wall of the sedimentation tank (5). The connecting block (802) is located on the concave surface of the flow-blocking plate (801). The top of the disinfection tank (6) is equipped with a sterilization structure (13).

2. The integrated wastewater treatment system according to claim 1, characterized in that: The aeration structure (4) includes an aerator (401), an aeration seat (402), an air chamber (403), and air holes (404). The aerator (401) is installed on the outer wall of the bottom of the oxidation tank (3). The aeration seat (402) is installed at the bottom of the oxidation tank (3). An air chamber (403) is provided inside the aeration seat (402). Air holes (404) are evenly provided on the outer side of the air chamber (403) inside the aeration seat (402).

3. The integrated wastewater treatment system according to claim 2, characterized in that: The output end of the aerator (401) extends into the interior of the oxidation tank (3) and is connected to the aeration seat (402). The air holes (404) are evenly distributed inside the aeration seat (402).

4. The integrated wastewater treatment system according to claim 1, characterized in that: The stirring structure (9) includes a first cover (901), a drive motor (902), a stirring shaft (903), and a stirring rod (904). The first cover (901) is installed at the top of the anoxic pool (2). The drive motor (902) is installed at the middle position of the top of the first cover (901). The stirring shaft (903) is located at the middle position inside the anoxic pool (2). Stirring rods (904) are evenly fixed on the outer wall of the stirring shaft (903).

5. The integrated wastewater treatment system according to claim 4, characterized in that: The top end of the stirring shaft (903) passes through the first cover (901) and is fixedly connected to the output end of the drive motor (902). The stirring rods (904) are evenly distributed on the outer wall of the stirring shaft (903).

6. The integrated wastewater treatment system according to claim 1, characterized in that: The sterilization structure (13) includes a second cover (1301), an ultraviolet germicidal lamp (1302), and a lamp holder (1303). The second cover (1301) is installed on the top of the disinfection pool (6). Lamp holders (1303) are evenly installed on both sides of the bottom end of the second cover (1301), and an ultraviolet germicidal lamp (1302) is provided between adjacent lamp holders (1303).

7. A method for using an integrated wastewater treatment system, comprising the following steps, characterized in that: S1. Fix the filter plate (1001) inside the grit chamber (1) through the limiting seat (1002), discharge the sewage into the grit chamber (1) through the inlet pipe (12), and the sewage will pass through the filter tank (1003) and enter the anoxic tank (2) through the valve. Larger impurities in the water will be filtered out by the filter plate (1001). S2. When the anoxic tank (2) is full, the sewage inside the grit chamber (1) will be transported to the regulating tank (1101) through the valve. When the anoxic tank (2) is open to flow, the water pump (1102) will be started. The water pump (1102) will transport the sewage inside the regulating tank (1101) to the grit chamber (1) through the transfer pipe (1103). S3. The interior of the anoxic tank (2) is a sealed environment with no air supply, thus providing an anoxic environment. After the sewage is transported to the interior of the grit tank (1), there are a large number of anaerobic bacteria in the sludge. Under anoxic conditions, the organic matter will be degraded into biogas and water. Start the drive motor (902). The drive motor (902) will drive the stirring rod (904) through the stirring shaft (903) to stir the sewage inside the anoxic tank (2), so that the sewage and sludge are mixed and a high concentration of suspended solids is maintained. It can also prevent sludge from accumulating and increase the sediment depth. S4. Arrange the structural layer and the packing layer on the inside of the oxidation tank (3). Transport the sewage inside the anoxic tank (2) to the inside of the oxidation tank (3) through the valve. Start the aerator (401). The aerator (401) will fill the air chamber (403) with air, and discharge the gas through the air hole (404) into the oxidation tank (3) to aerate the sewage. After being oxygenated, the sewage to be treated flows through the packing at a certain flow rate and comes into contact with the biofilm. The biofilm and the suspended activated sludge work together to purify the sewage. S5. The wastewater after aeration is transported to the interior of the sedimentation tank (5) through the valve. The water flow will impact the concave side of the baffle plate (801), causing the water flow to surge in opposite directions. Under the action of the diversion plate (803), the water flow will reverse again. The baffle plate (801) and the diversion plate (803) are evenly distributed inside the grit tank (1), causing the water flow to turn back and forth, consuming the impact speed of the water flow, and causing the water to rise naturally, thereby accelerating the sedimentation speed of impurities in the water. S6. After sedimentation, the water is transported to the interior of the disinfection tank (6) through the valve. The ultraviolet germicidal lamp (1302) is connected to the power supply. The ultraviolet germicidal lamp (1302) will sterilize the water inside the disinfection tank (6) and then discharge it from the drain pipe (7).

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