Sewage biological treatment device capable of efficiently removing phosphorus and nitrogen

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a sewage biological treatment device capable of efficiently removing phosphorus and nitrogen, which comprises a sewage treatment tank, a driving component for providing thrust is fixedly connected to the top of the sewage treatment tank, a sliding chute is arranged at the upper part in the sewage treatment tank, a U-shaped rod is slidably connected to the interior of the sliding chute, and the U-shaped rod is fixedly connected to the top of the sewage treatment tank. A guide rail is fixedly connected to the top of the sewage treatment tank, a U-shaped frame is fixedly connected to the bottom of a U-shaped rod, a push plate is rotatably connected to the interior of the U-shaped frame, and a round rod is fixedly connected to the interior of the U-shaped frame. According to the sewage treatment tank, the air cylinder can push the U-shaped rod to slide in the sewage treatment tank, meanwhile, the guide rail can limit the sliding track of the U-shaped rod, the U-shaped rod can drive the push plate to slide at the bottom of the sewage treatment tank through the U-shaped frame, the push plate can discharge sludge at the bottom through the sludge channel, and the effect of rapidly cleaning the sludge in the sewage treatment tank is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a highly efficient biological wastewater treatment device for phosphorus and nitrogen removal. Background Technology

[0002] With the acceleration of industrialization and the continuous advancement of urbanization, water pollution has become increasingly serious, especially the impact of pollutants such as nitrogen and phosphorus on the aquatic ecological environment. Eutrophication has become a major environmental problem worldwide, leading to a series of chain reactions such as water quality deterioration and ecological imbalance. Therefore, the development of efficient wastewater treatment technologies, especially biological treatment devices for nitrogen and phosphorus removal, has become an urgent need in the field of environmental protection.

[0003] Traditional wastewater treatment methods often face problems such as low treatment efficiency, resource waste, and secondary pollution. However, new high-efficiency biological wastewater treatment devices for phosphorus and nitrogen removal, with their advanced design concepts and technologies, can effectively reduce the nitrogen and phosphorus content in water, improve water quality, and promote the sustainable use of water resources.

[0004] In existing technologies, many biological wastewater treatment devices often suffer from the problem of inconvenient sludge removal during the wastewater treatment process. Some biological wastewater treatment devices are often designed without an effective sludge removal mechanism, resulting in sludge accumulation at the bottom of the tank and affecting the treatment effect. Therefore, a high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a highly efficient biological wastewater treatment device for phosphorus and nitrogen removal, aiming to improve the problem that some existing biological wastewater treatment devices often lack an effective sludge removal mechanism, resulting in sludge accumulation at the bottom of the tank and affecting the treatment effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal includes a wastewater treatment tank. A driving component providing thrust is fixedly connected to the top of the wastewater treatment tank. A chute is provided above the interior of the wastewater treatment tank. A U-shaped rod is slidably connected inside the chute. A guide rail is fixedly connected to the top of the wastewater treatment tank. The U-shaped rod is slidably connected to the outside of the guide rail. A U-shaped frame is fixedly connected to the bottom of the U-shaped rod. A push plate is rotatably connected inside the U-shaped frame. A round rod is fixedly connected inside the U-shaped frame. A sludge channel is provided on one side of the lower interior of the wastewater treatment tank.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a fixed base, the top of which is fixedly connected to the top of the sewage treatment tank, and a cylinder is fixedly connected inside the fixed base. The drive end of the cylinder is fixedly connected to the outside of the U-shaped rod.

[0010] As a further description of the above technical solution:

[0011] A filter bucket is fixedly connected to the top of the sewage treatment tank, an inlet pipe is fixedly connected to the inside of the filter bucket, a filter cylinder is fixedly connected to the inside of the filter bucket, and a funnel is fixedly connected to the bottom of the filter cylinder.

[0012] As a further description of the above technical solution:

[0013] An impurity outlet is fixedly connected to the lower interior of the filter barrel, and a water outlet pipe is fixedly connected to the interior of the filter barrel. The other end of the water outlet pipe 15 is fixedly connected to the interior of the sewage treatment tank 1.

[0014] As a further description of the above technical solution:

[0015] The sewage treatment tank has two partitions fixedly connected inside, a blower fixedly connected to the top of the sewage treatment tank, an air duct fixedly connected to the outside of the blower, and the other end of the air duct fixedly connected to the inside of the sewage treatment tank.

[0016] As a further description of the above technical solution:

[0017] The sewage treatment tank is fixedly connected to a conveying pipe. One end of the conveying pipe is fixedly connected to a water pump, and the other end of the conveying pipe is fixedly connected to the side near the outlet pipe.

[0018] As a further description of the above technical solution:

[0019] A second water pump is fixedly connected to the top of the sewage treatment tank, and a disinfection pipe is fixedly connected to the bottom of the second water pump.

[0020] As a further description of the above technical solution:

[0021] The other end of the disinfection pipe is fixedly connected to a water pumping filter screen, which is located on the outside of the sewage treatment tank on the right side.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, after the sewage treatment is completed, the cylinder is activated. The cylinder can push the U-shaped rod to slide in the sewage treatment tank. At the same time, the guide rail can limit the sliding trajectory of the U-shaped rod. The U-shaped rod can drive the push plate to slide at the bottom of the sewage treatment tank through the U-shaped frame. The push plate can discharge the sludge at the bottom through the sludge channel, thereby achieving the effect of quickly cleaning the sludge inside the sewage treatment tank.

[0024] 2. In this utility model, the wastewater to be treated is flushed into the filter bucket through the inlet pipe. The wastewater can generate centrifugal force in the filter bucket. After being filtered by the filter bucket, larger impurities can fall into the funnel and then be discharged through the impurity outlet. The filtered wastewater enters the wastewater treatment tank through the outlet pipe for biological treatment, thereby reducing the treatment pressure of the wastewater treatment tank. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the U-shaped rod of a high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the pusher plate of a high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the filter cartridge of a high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the sludge channel structure of a high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal proposed in this utility model.

[0030] Legend:

[0031] 1. Wastewater treatment tank; 2. Fixed base; 3. Cylinder; 4. U-shaped rod; 5. Guide rail; 6. U-shaped frame; 7. Push plate; 8. Round rod; 9. Sludge channel; 10. Filter barrel; 11. Inlet pipe; 12. Filter cartridge; 13. Funnel; 14. Impurity outlet; 15. Outlet pipe; 16. Baffle; 17. Blower; 18. Air duct; 19. Water pump one; 20. Conveying pipeline; 21. Water pump two; 22. Pumping filter screen; 23. Disinfection pipeline. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a highly efficient biological wastewater treatment device for phosphorus and nitrogen removal, comprising a wastewater treatment tank 1, which is mainly used to contain wastewater to be treated. A driving assembly providing thrust is fixedly connected to the top of the wastewater treatment tank 1. A chute is provided above the interior of the wastewater treatment tank 1, and a U-shaped rod 4 is slidably connected inside the chute. The U-shaped rod 4 can move smoothly on a guide rail 5. The guide rail 5 is fixedly connected to the top of the wastewater treatment tank 1, and is used to limit the movement trajectory of the U-shaped rod 4. The interior of the U-shaped rod 4 is slidably connected to the exterior of the guide rail 5. A U-shaped frame 6 is fixedly connected to the bottom of the U-shaped rod 4, and the U-shaped frame 6 is used to push a push plate 7, enabling the push plate 7 to move within the wastewater treatment tank 1. An internally rotating push plate 7 is connected to the U-shaped frame 6. The push plate 7 is a component used to push sludge and push it out. A round rod 8 is fixedly connected inside the U-shaped frame 6. The round rod 8 is used to hold the push plate 7 and provide support for the push plate 7. A sludge channel 9 is provided on one side of the lower part of the interior of the sewage treatment tank 1. The sludge channel 9 is used to discharge the sludge generated during the treatment process. The sludge channel 9 is equipped with a valve to control the opening and closing of the sludge channel 9. The drive assembly includes a fixed base 2. The fixed base 2 is used to provide a base for the installation and support of the cylinder 3. The top of the fixed base 2 is fixedly connected to the top of the sewage treatment tank 1. The cylinder 3 is fixedly connected inside the fixed base 2. The cylinder 3 is responsible for pushing the movement of the U-shaped rod 4. The drive end of the cylinder 3 is fixedly connected to the outside of the U-shaped rod 4.

[0034] Reference Figure 1 and Figure 4 A filter bucket 10 is fixedly connected to the top of the sewage treatment tank 1. The filter bucket 10 is used for preliminary filtration of sewage to remove larger impurities. An inlet pipe 11 is fixedly connected inside the filter bucket 10. The inlet pipe 11 is responsible for introducing sewage into the filter bucket 10. A filter cartridge 12 is fixedly connected inside the filter bucket 10. The filter cartridge 12 can effectively filter suspended solids and impurities in the sewage. A funnel 13 is fixedly connected to the bottom of the filter cartridge 12. The funnel 13 is responsible for guiding impurities out of the impurity outlet 14. An impurity outlet 14 is fixedly connected to the lower part of the filter bucket 10. The impurity outlet 14 is used to discharge impurities collected during the filtration process. An outlet pipe 15 is fixedly connected inside the filter bucket 10. The outlet pipe 15 is responsible for guiding the pretreated water into the sewage treatment tank 1. The other end of the outlet pipe 15 is fixedly connected to the inside of the sewage treatment tank 1.

[0035] Reference Figure 2 and Figure 5 The wastewater treatment tank 1 has two fixed partitions 16 inside, which divide the tank into anoxic, aerobic, and solid-liquid separation zones. A blower 17 is fixedly connected to the top of the tank, supplying air to the aerobic zone to promote the growth and reproduction of aerobic microorganisms. These microorganisms decompose the chemical oxygen demand (COD) in the water, while ammonia nitrogen is converted to nitrate nitrogen by nitrifying bacteria. An air duct 18 is fixedly connected to the outside of the blower 17, transporting the air generated by the blower to the aerobic zone within the tank. The other end of the air duct 18 is fixedly connected to the inside of the tank. In the solid-liquid separation zone, the wastewater undergoes solid-liquid separation to reduce suspended solids and achieve mud-water separation. A conveying pipe 20 is fixedly connected inside the tank. One end of the conveying pipe 20 is set in the anoxic area, and the other end is fixedly set in the solid-liquid separation area along with the nitrification liquid via the conveying pipe 20. The other end of the conveying pipe 20 is fixedly connected to the water pump 19. The water pump 19 can transport the nitrate nitrogen in the solid-liquid separation area along with the nitrification liquid through the conveying pipe 20 to the anoxic area for denitrification biological denitrification, thereby reducing the total nitrogen content in the water. The other end of the conveying pipe 20 is fixedly connected to the side near the effluent pipe 15. The top of the sewage treatment tank 1 is fixedly connected to the water pump 21, which provides the power source for pumping water to the disinfection pipe 23. The bottom of the water pump 21 is fixedly connected to the disinfection pipe 23, which is used to disinfect the treated water. The other end of the disinfection pipe 23 is fixedly connected to the water pumping filter 22, which is responsible for intercepting small impurities in the water to improve the quality of the effluent. The exterior of the water pumping filter 22 is set inside the sewage treatment tank 1 on the right side.

[0036] Working principle: First, the wastewater to be treated flows into the filter tank 10 through the inlet pipe 11. Inside the filter tank 10, the wastewater is subjected to centrifugal force, and larger impurities are intercepted by the filter cartridge 12. The impurities intercepted by the filter cartridge 12 fall to the bottom of the filter tank 10 under the guidance of the funnel 13, and then are discharged from the impurity outlet 14. The filtered wastewater enters the wastewater treatment tank 1 through the outlet pipe 15 to begin the biological treatment process. Two baffles 16 are installed in the wastewater treatment tank 1 to divide the wastewater treatment tank 1 into anoxic zone, aerobic zone, and solid-liquid separation zone. The blower 17 at the top pumps air to the aerobic zone. Air is supplied to promote the growth and reproduction of aerobic microorganisms, decompose the chemical oxygen demand in the water, and convert ammonia nitrogen into nitrate nitrogen through nitrifying bacteria. The wastewater undergoes solid-liquid separation in the solid-liquid separation zone to reduce the suspended solids content in the water and achieve mud-water separation. During the treatment process, water pump 19 transports the nitrate nitrogen in the solid-liquid separation zone along with the nitrified liquid through the conveying pipe 20 to the anoxic zone for denitrification biological denitrification, thereby reducing the total nitrogen content in the water. At the same time, water pump 21 provides pumping power for the disinfection pipe 23. The treated water is disinfected through the disinfection pipe 23 to ensure water quality safety.

[0037] After the sewage treatment is completed, the switch valve on the sludge channel 9 is opened, the cylinder 3 is started, and the U-shaped rod 4 is pushed to slide in the sewage treatment tank 1. The guide rail 5 restricts the sliding trajectory of the U-shaped rod 4. The U-shaped rod 4 drives the push plate 7 to slide at the bottom of the sewage treatment tank 1 through the U-shaped frame 6, pushing the sludge at the bottom towards the sludge channel 9. When the cylinder 3 retracts, the push plate 7 will rotate in the U-shaped frame 6, so that the push plate 7 returns to its initial position. Then the cylinder 3 pushes the push plate 7 again, and the operation is repeated to quickly discharge the sludge generated during the treatment process.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency biological wastewater treatment device for phosphorus and nitrogen removal, comprising a wastewater treatment tank (1), characterized in that: The top of the sewage treatment tank (1) is fixedly connected to a drive assembly that provides thrust. A chute is provided above the interior of the sewage treatment tank (1). A U-shaped rod (4) is slidably connected inside the chute. A guide rail (5) is fixedly connected to the top of the sewage treatment tank (1). The interior of the U-shaped rod (4) is slidably connected to the outside of the guide rail (5). A U-shaped frame (6) is fixedly connected to the bottom of the U-shaped rod (4). A push plate (7) is rotatably connected inside the U-shaped frame (6). A round rod (8) is fixedly connected inside the U-shaped frame (6). A sludge channel (9) is provided on one side below the interior of the sewage treatment tank (1).

2. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 1, characterized in that: The drive assembly includes a fixed base (2), the top of which is fixedly connected to the top of the sewage treatment tank (1), and a cylinder (3) is fixedly connected inside the fixed base (2), with the drive end of the cylinder (3) fixedly connected to the outside of the U-shaped rod (4).

3. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 1, characterized in that: A filter bucket (10) is fixedly connected to the top of the sewage treatment tank (1), an inlet pipe (11) is fixedly connected to the inside of the filter bucket (10), a filter cylinder (12) is fixedly connected to the inside of the filter bucket (10), and a funnel (13) is fixedly connected to the bottom of the filter cylinder (12).

4. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 3, characterized in that: An impurity outlet (14) is fixedly connected to the lower part of the filter barrel (10), and a water outlet pipe (15) is fixedly connected to the inside of the filter barrel (10). The other end of the water outlet pipe (15) is fixedly connected to the inside of the sewage treatment tank (1).

5. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 1, characterized in that: The sewage treatment tank (1) has two partitions (16) fixedly connected inside. A blower (17) is fixedly connected to the top of the sewage treatment tank (1). An air duct (18) is fixedly connected to the outside of the blower (17). The other end of the air duct (18) is fixedly connected to the inside of the sewage treatment tank (1).

6. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 4, characterized in that: The sewage treatment tank (1) is fixedly connected to a conveying pipe (20), one end of which is fixedly connected to a water pump (19), and the other end of which is fixedly connected to the side near the outlet pipe (15).

7. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 1, characterized in that: A second water pump (21) is fixedly connected to the top of the sewage treatment tank (1), and a disinfection pipe (23) is fixedly connected to the bottom of the second water pump (21).

8. The efficient biological wastewater treatment device for phosphorus and nitrogen removal according to claim 7, characterized in that: The other end of the disinfection pipe (23) is fixedly connected to a water pumping filter (22), and the exterior of the water pumping filter (22) is located inside the sewage treatment tank (1) on the right side.

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