A sewage treatment apparatus facilitating catalyst addition

Abstract

The utility model provides a sewage treatment equipment convenient to add catalyst, which comprises a buffer tank for carrying out sewage pretreatment, an anaerobic tank for decomposing macromolecular organic matters, an aerobic tank for decomposing small molecular organic matters, a sedimentation tank for precipitating sludge and discharging clean water, and a clean water tank for temporarily storing clean water, wherein the buffer tank, the anaerobic tank, the aerobic tank, the sedimentation tank and the clean water tank are sequentially and continuously connected, the top of the aerobic tank is connected with a feeding wheel, the upper part of the feeding wheel is connected with a medicine box, and a catalyst adding device is arranged on the upper part of the aerobic tank, the top of the aerobic tank is connected with the feeding wheel, the upper part of the feeding wheel is connected with the medicine box, and the catalyst is stored in the medicine box, and the catalyst is added quantitatively and at a constant speed through the feeding wheel, so that the automation of adding the catalyst is improved, and the accuracy of the adding amount is also improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically to a wastewater treatment device that facilitates the addition of catalysts. Background Technology

[0002] Based on the source of wastewater, wastewater treatment is generally divided into industrial wastewater treatment and domestic wastewater treatment. Industrial wastewater includes industrial wastewater, agricultural wastewater, and medical wastewater, while domestic wastewater is wastewater generated in daily life. It refers to a complex mixture of various forms of inorganic and organic matter, including: ① floating and suspended solid particles of various sizes; ② colloidal and gel-like diffuses; ③ pure solutions.

[0003] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of the daily lives of ordinary people.

[0004] Wastewater treatment is a crucial link in protecting the environment and human health. With the continuous development of industrialization and urbanization, wastewater treatment equipment is being widely constructed and applied. Catalysts, as a key component in the wastewater treatment process, can accelerate the chemical reaction rate and improve the treatment effect.

[0005] Various catalysts are widely used in all stages of wastewater treatment. For example, activated carbon catalysts are used for adsorption and oxidation reactions in wastewater treatment, metal oxidant catalysts are used for oxidation and precipitation reactions in wastewater treatment, and biocatalysts are used for organic matter degradation and pollutant removal in wastewater treatment. Although catalysts play an important role in wastewater treatment, the addition of catalysts needs to follow certain rules, such as the amount added and the stage of addition. Currently, catalysts are generally added manually, which makes it difficult to control the amount added and wastes manpower. Summary of the Invention

[0006] To address the aforementioned problems and overcome the shortcomings of existing technologies, this utility model provides a wastewater treatment device that facilitates the addition of a catalyst, comprising:

[0007] Buffer tanks used for wastewater pretreatment;

[0008] Anaerobic tanks used to decompose large organic molecules;

[0009] Aerobic tank used to decompose small molecule organic matter;

[0010] Sedimentation tanks are used to settle sludge and discharge clean water;

[0011] Clear water tanks used for temporary storage of clean water;

[0012] The buffer tank, anaerobic tank, aerobic tank, sedimentation tank, and clear water tank are connected end to end in sequence;

[0013] The top of the aerobic tank is connected to a feeding wheel, and the upper part of the feeding wheel is connected to a reagent box.

[0014] Furthermore, the feeding wheel includes a shell that runs vertically through the interior and exterior. A feeding port is provided at the opening at the top of the shell, and a feeding pipe is provided at the opening at the bottom of the shell. The feeding port is connected to the bottom of the reagent box, and the feeding pipe is connected to the top of the aerobic tank.

[0015] Furthermore, a hopper is provided inside the shell. The hopper has a circular longitudinal section, and the upper and lower parts of the hopper are provided with openings that are respectively connected to the feeding port and the injection pipe.

[0016] The hopper is equipped with a rotatable feeder with several feeding chambers evenly arranged on it. As the feeder rotates, the catalyst is injected from the reagent box into the feeding chamber as the feeding chambers pass through the feeding port in sequence. As the feeding chambers pass through the injection pipe in sequence, the catalyst is discharged from the feeding chambers into the injection pipe.

[0017] Furthermore, the feeder includes a rotating shaft, on which several mounting plates are evenly arranged. U-shaped plates are fixedly mounted on the mounting plates, and rubber plates are fixedly mounted between adjacent U-shaped plates. The outer edge of the rubber plates is in close contact with the inner wall of the hopper.

[0018] Furthermore, one end of the rotating shaft is connected to a drive shaft, which exits the housing and is connected to a stepper motor.

[0019] Furthermore, the distance between the outer edges of adjacent rubber plates is equal to the diameter of the injection tube.

[0020] Furthermore, a water inlet is connected to one side of the buffer pool, and a drain outlet is connected to one side of the clear water pool.

[0021] Furthermore, both the anaerobic and aerobic tanks are equipped with aeration devices at the bottom, and these devices are connected to air pumps.

[0022] Furthermore, the aeration device includes an aeration pipe and an aeration head. A one-way valve is provided at the upper part of the aeration pipe, and several openings are provided at the lower part of the aeration pipe. Each aeration head is correspondingly installed on an opening. An elastic diaphragm is provided at the opening of the aeration head, and a vent hole is provided in the middle of the elastic diaphragm.

[0023] The beneficial effects of this utility model are:

[0024] The wastewater treatment equipment provided by this utility model facilitates the addition of catalysts. In order to improve the wastewater treatment effect in the aerobic tank, a catalyst addition device is installed at the top of the aerobic tank. A feeding wheel is connected to the top of the aerobic tank, and a reagent box is connected to the top of the feeding wheel. The catalyst is stored in the reagent box. The feeding wheel is used to add the catalyst quantitatively and at a constant speed, which not only improves the automation of catalyst addition, but also improves the accuracy of the addition amount. Attached Figure Description

[0025] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Appendix Figure 2 This is an enlarged schematic diagram of the feeding wheel structure of this utility model;

[0027] In the attached diagram: 1. Base, 2. Buffer tank, 3. Anaerobic tank, 4. Aerobic tank, 5. Sedimentation tank, 6. Clear water tank, 7. Water inlet, 8. Drain outlet, 9. Chemical box, 10. Feeding wheel, 11. Stepper motor, 12. Feeding port, 13. Feeding pipe, 14. Shell, 15. Rotating shaft, 16. Feeding chamber, 17. U-shaped plate, 18. Rubber plate, 19. Hopper, 20. Mounting plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 and attached Figure 2 The present invention will be described in more detail below.

[0029] The wastewater treatment equipment provided by this utility model, which facilitates the addition of catalysts, includes a buffer tank 2 for wastewater pretreatment; an anaerobic tank 3 for decomposing large molecular organic matter; an aerobic tank 4 for decomposing small molecular organic matter; a sedimentation tank 5 for settling sludge and discharging clear water; and a clear water tank 6 for temporarily storing clear water. The buffer tank 2, anaerobic tank 3, aerobic tank 4, sedimentation tank 5, and clear water tank 6 are connected end to end in sequence. A feeding wheel 10 is connected to the top of the aerobic tank 4, and a reagent box 9 is connected to the upper part of the feeding wheel 10. The feeding wheel 10 includes a shell 1 that runs vertically through the tank. 4. A feeding port 12 is provided at the upper opening of the shell 14, and a feeding pipe 13 is provided at the lower opening of the shell 14. The feeding port 12 is connected to the bottom of the reagent box 9, and the feeding pipe 13 is connected to the top of the aerobic tank 4. A silo 19 is provided inside the shell 14. The longitudinal section of the silo 19 is circular. The upper and lower parts of the silo 19 are provided with openings that are respectively connected to the feeding port 12 and the feeding pipe 13. A feeder is rotatably provided inside the silo 19. Several feeding chambers 16 are evenly arranged on the feeder. During the rotation of the feeder, the feeder... When the feed chamber 16 passes through the feed inlet 12, the catalyst is injected from the reagent box 9 into the feed chamber 16. When the feed chamber 16 passes through the injection pipe 13, the catalyst is discharged from the feed chamber 16 into the injection pipe 13. The feeder includes a rotating shaft 15, on which several mounting plates 20 are evenly arranged. U-shaped plates 17 are fixedly mounted on the mounting plates 20. Rubber plates 18 are fixedly mounted between adjacent U-shaped plates 17, and the outer edge of the rubber plates 18 is in close contact with the inner wall of the hopper 19. One end of the rotating shaft 15 is connected to a drive shaft, which exits the housing 14 and is connected to a drive shaft. Stepper motor 11; the distance between the outer edges of adjacent rubber plates 18 is equal to the diameter of the injection pipe 13; a water inlet 7 is connected to one side of the buffer tank 2, and a drain outlet 8 is connected to one side of the clear water tank 6; both the bottom of the anaerobic tank 3 and the aerobic tank 4 are equipped with aeration devices, and the aeration devices are connected to air pumps; the aeration devices include aeration pipes and aeration heads, a one-way valve is provided at the upper part of the aeration pipe, and several openings are provided at the lower part of the aeration pipe, with aeration heads corresponding to each opening; an elastic diaphragm is provided at the opening of the aeration head, and a vent hole is provided in the middle of the elastic diaphragm.

[0030] One embodiment of this utility model is as follows:

[0031] Wastewater treatment equipment that facilitates the addition of catalysts includes a base 1, a buffer tank 2, an anaerobic tank 3, an aerobic tank 4, a sedimentation tank 5, and a clear water tank 6, all of which are located on the upper part of the base 1.

[0032] Buffer tank 2 is used for wastewater pretreatment. One side of buffer tank 2 is connected to water inlet 7. Wastewater enters buffer tank 2 through water inlet 7. Since the wastewater discharge is not fixed, the discharge is generally larger during the day and smaller at night, which can easily impact anaerobic tank 3 and affect the efficiency of wastewater treatment. Therefore, buffer tank 2 is set up. After the wastewater is discharged into buffer tank 2, the liquid level gradually rises during the accumulation process until it exceeds the height of the drain outlet 8 between buffer tank 2 and anaerobic tank 3. Then, the wastewater enters anaerobic tank 3 through drain outlet 8.

[0033] Anaerobic tank 3 is used to decompose large molecular organic matter. Anaerobic bacteria are added to anaerobic tank 3 through packing. Under the action of anaerobic bacteria, large molecular organic matter is decomposed into small molecular organic matter, and nitrate nitrogen is decomposed into nitrogen gas and water.

[0034] The aerobic tank 4 is used to decompose small molecule organic matter. Aerobic bacteria are added to the aerobic tank 4 through the packing material. The aerobic bacteria decompose small molecule organic matter into carbon dioxide and water, removing organic pollutants from the water. At the same time, organic nitrogen is converted into nitrate nitrogen and enters the anaerobic tank 3 through the reflux device.

[0035] A siphon pipe is installed between buffer tank 2 and anaerobic tank 3, and a siphon pipe with the same structure is also installed between anaerobic tank 3 and aerobic tank 4. The connected sewage treatment tanks are connected through the siphon pipe. According to the siphon effect, the sewage in the upper treatment tank can be discharged into the lower treatment tank. At the same time, since the outlet of the siphon pipe is at the bottom, the sewage discharge is relatively stable and will not cause impact on the lower treatment tank, so as not to affect the decomposition of organic matter by anaerobic and aerobic bacteria.

[0036] Sedimentation tank 5 is used to settle sludge and discharge clean water. Sedimentation tank 5 is located one level below aerobic tank 4. Wastewater treated by aerobic tank 4 carries sludge into sedimentation tank 5, where it settles. The sludge settles at the bottom and the clean water is at the top. The clean water is discharged into the next level clean water tank 6. Sedimentation tank 5 is connected to a sludge tank for storing and discharging sludge. The sludge is returned to anaerobic tank 3 through a return system to replenish the sludge.

[0037] The clear water tank 6 is used to temporarily store clear water. A drain outlet 8 is connected to one side of the clear water tank 6. The clear water is pumped out by a water pump for further processing or discharge.

[0038] To improve the wastewater treatment effect in the aerobic tank 4, a catalyst addition device is installed at the top of the aerobic tank 4. A feeding wheel 10 is connected to the top of the aerobic tank 4, and a reagent box 9 is connected to the top of the feeding wheel 10. The catalyst is stored in the reagent box 9 and added quantitatively and at a constant speed through the feeding wheel 10. The feeding wheel 10 is driven by a drive shaft, which transmits power out of the housing 14 and is connected to a stepper motor 11. After receiving an electrical pulse signal, the stepper motor 11 rotates at a certain angle. In this embodiment, the rotation angle is 30 degrees. Each rotation ensures that only one feeding chamber 16 is connected to the injection pipe 13, thereby ensuring the amount of catalyst added. At the same time, the rotation speed can be adjusted by adjusting the electrical pulse signal.

[0039] The feeding wheel 10 includes a shell 14 that runs vertically through the shell. A feeding port 12 is provided at the opening at the top of the shell 14. The feeding port 12 is connected to the bottom of the reagent box 9, and the catalyst can be discharged into the feeding chamber 16. A feeding pipe 13 is provided at the opening at the bottom of the shell 14. The feeding pipe 13 is connected to the top of the aerobic tank 4, and the catalyst enters the aerobic tank 4 from the feeding pipe 13.

[0040] The housing 14 contains a hopper 19 with a circular longitudinal section. The upper and lower parts of the hopper 19 have openings that communicate with the feeding port 12 and the injection pipe 13, respectively. Inside the hopper 19, a feeder is rotatably mounted. The feeder includes a rotating shaft 15, on which 12 mounting plates 20 are evenly arranged. U-shaped plates 17 are fixedly mounted on the mounting plates 20, and rubber plates 18 are fixedly mounted between adjacent U-shaped plates 17. The rubber plates 18 have a certain elasticity, and their outer edges are tightly attached to the inner wall of the hopper 19 to provide a sealing effect. The U-shaped plates 17, rubber plates 18, and the inner wall of the hopper 19 form a feeding chamber 16. During the rotation of the feeder, when the feeding chamber 16 passes through the feeding port 12, the catalyst is injected from the reagent box 9 into the feeding chamber 16. When the feeding chamber 16 passes through the injection pipe 13, the catalyst is discharged from the feeding chamber 16 into the injection pipe 13.

[0041] The injection pipe 13 can be set to a cylindrical shape. Since the rubber plate 18 is always in contact with the inner wall of the hopper 19 during the rotation of the feeder, and the width of the rubber plate 18 is the same as the diameter of the injection pipe 13, all the catalyst will be swept into the injection pipe 13 by the rubber plate 18 and discharged into the aerobic tank 4.

[0042] The distance between the outer edges of adjacent rubber plates 18 is equal to the diameter of the injection pipe 13, ensuring that the catalyst in a single feeding chamber 16 can be completely discharged into the aerobic tank 4, while the catalyst in adjacent feeding chambers 16 will not leak.

[0043] Both anaerobic tank 3 and aerobic tank 4 are equipped with aeration devices at the bottom. The aeration devices are connected to air pumps and include aeration pipes and aeration heads. The lower part of the aeration pipe has several openings, and the aeration heads are correspondingly installed on each opening. An elastic diaphragm is installed at the opening of the aeration head, and a cross-shaped air vent is provided in the middle of the elastic diaphragm. When gas is discharged from the aeration pipe, the gas is discharged from the air vent and smoothly enters the wastewater. When the gas discharge stops, the elastic diaphragm contracts and the air vent closes at the same time. At the same time, a one-way valve is installed at the upper part of the aeration pipe to prevent wastewater from entering the aeration pipe.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device that facilitates the addition of a catalyst, characterized in that: include Buffer tanks used for wastewater pretreatment; Anaerobic tanks used to decompose large organic molecules; Aerobic tank used to decompose small molecule organic matter; Sedimentation tanks are used to settle sludge and discharge clean water; Clear water tanks used for temporary storage of clean water; The buffer tank, anaerobic tank, aerobic tank, sedimentation tank, and clear water tank are connected end to end in sequence; The top of the aerobic tank is connected to a feeding wheel, and a reagent box is connected to the upper part of the feeding wheel.

2. The wastewater treatment equipment for easy catalyst addition according to claim 1, characterized in that: The feeding wheel includes a shell that runs vertically through the top and bottom. A feeding port is provided at the opening at the top of the shell, and a feeding pipe is provided at the opening at the bottom of the shell. The feeding port is connected to the bottom of the reagent box, and the feeding pipe is connected to the top of the aerobic tank.

3. The wastewater treatment equipment for easy addition of catalyst according to claim 2, characterized in that: The shell contains a hopper with a circular longitudinal section. The upper and lower parts of the hopper have openings that communicate with the feeding port and the injection pipe, respectively. The hopper is equipped with a rotatable feeder, which has several feeding chambers evenly arranged on it. As the feeder rotates, the catalyst is injected from the reagent box into the feeding chamber when the feeding chamber passes the feeding port in sequence. When the feeding chamber passes the injection pipe in sequence, the catalyst is discharged from the feeding chamber into the injection pipe.

4. The wastewater treatment equipment for easy addition of catalyst according to claim 3, characterized in that: The feeder includes a rotating shaft, on which several mounting plates are evenly arranged. A U-shaped plate is fixedly mounted on the mounting plate, and a rubber plate is fixedly mounted between adjacent U-shaped plates. The outer edge of the rubber plate is in close contact with the inner wall of the hopper.

5. The wastewater treatment equipment for easy addition of catalyst according to claim 4, characterized in that: One end of the rotating shaft is connected to a drive shaft, which exits the housing and is connected to a stepper motor.

6. The wastewater treatment equipment for easy addition of catalyst according to claim 4, characterized in that: The distance between the outer edges of adjacent rubber plates is equal to the diameter of the injection tube.

7. The wastewater treatment equipment for easy addition of catalyst according to claim 1, characterized in that: A water inlet is connected to one side of the buffer pool, and a drain outlet is connected to one side of the clear water pool.

8. The wastewater treatment equipment for easy addition of catalyst according to claim 1, characterized in that: Both the anaerobic and aerobic tanks are equipped with aeration devices at the bottom, and the aeration devices are connected to air pumps.

9. The wastewater treatment equipment for easy addition of catalyst according to claim 8, characterized in that: The aeration device includes an aeration pipe and an aeration head. A one-way valve is provided at the upper part of the aeration pipe, and several openings are provided at the lower part of the aeration pipe. Each aeration head is correspondingly provided on an opening. An elastic diaphragm is provided at the opening of each aeration head, and a vent hole is provided in the middle of the elastic diaphragm.

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