Sewage treatment equipment for optimizing aeration system

Abstract

The utility model relates to the technical field of sewage treatment, and discloses sewage treatment equipment for optimizing an aeration system, which comprises a sewage treatment tank, an anoxic zone is arranged in the sewage treatment tank, a first-stage aerobic zone is arranged on one side of the anoxic zone, a second-stage aerobic zone is arranged on one side of the first-stage aerobic zone, and a third-stage aerobic zone is arranged on one side of the second-stage aerobic zone. A secondary sedimentation tank is arranged on one side of the secondary aerobic zone, a coagulating tank is arranged on one side of the secondary sedimentation tank, a coagulating sedimentation zone is arranged on one side of the coagulating tank, and an aeration assembly is arranged on the sewage treatment tank. According to the sewage treatment equipment for optimizing the aeration system, the anoxic zone, the first-stage aerobic zone, the second-stage aerobic zone, the coagulating basin and the coagulative precipitation zone are arranged, sewage enters the sewage treatment tank through a collecting pipe network, and the sewage sequentially passes through the anoxic zone, the first-stage aerobic zone, the second-stage aerobic zone, the coagulating basin and the coagulative precipitation zone to complete aeration and impurity separation; water and sludge are respectively discharged through the water outlet and the sludge discharge port, so that impurities in the sewage are conveniently separated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage treatment equipment with an optimized aeration system. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people.

[0003] The Chinese patent application with publication number CN202020820072.1 discloses an inlet aeration and regulation system for integrated sewage treatment equipment. The system includes a water inlet, a water inlet tank, a water inlet pump, and a fan, and is characterized in that it also includes an electronic control system and a liquid level probe, the liquid level probe is located in the water inlet tank, and the liquid level probe is connected to the electronic control system. There are at least two water inlet pumps and at least two fans, at least two water inlet pumps are in parallel, each water inlet pump is connected to the electronic control system at one end, and the other end is connected to the water inlet of the integrated sewage treatment equipment, at least two fans are in parallel, each fan is connected to the electronic control system at one end, and the other end is connected to the aeration device of the integrated sewage treatment equipment.

[0004] After aeration, the system also needs to transfer sewage to separate impurities, which is inconvenient to separate impurities in sewage. In addition, the system is generally equipped with two fans of different powers, and the fan configuration needs to be adjusted to adjust to the appropriate aeration volume. Each increase in aeration volume requires an additional fan of different power to be added or changed, and the operation process of changing the aeration volume is cumbersome. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a sewage treatment device with an optimized aeration system, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical solution: a sewage treatment device for optimizing an aeration system, comprising: a sewage treatment tank, an anoxic zone is arranged inside the sewage treatment tank, a primary aerobic zone is arranged on one side of the anoxic zone, a secondary aerobic zone is arranged on one side of the primary aerobic zone, a secondary sedimentation tank is arranged on one side of the secondary sedimentation tank, a coagulation tank is arranged on one side of the secondary sedimentation tank, a coagulation sedimentation zone is arranged on one side of the coagulation tank, and an aeration component is arranged on the sewage treatment tank;

[0007] The aeration assembly includes an air pump group, an air collecting pipe, a rectangular connecting pipe and an aeration plate. An air intake branch pipe is arranged between the air pump group and the air collecting pipe. One end of the air collecting pipe extends to the inside of the primary aerobic zone, and the other end of the air collecting pipe is located inside the secondary aerobic zone. Both ends of the air collecting pipe are connected with air distribution pipes, and the air distribution pipes are connected to the rectangular connecting pipe. The aeration plate is installed on the rectangular connecting pipe.

[0008] Preferably, a water inlet is provided on one side of the sewage treatment tank, and a water outlet and a mud discharge outlet are provided on the other side of the sewage treatment tank.

[0009] Preferably, a flushing air outlet pipe is connected to the surface of the rectangular connecting pipe, and a first regulating valve is provided on the surface of the flushing air outlet pipe.

[0010] Preferably, the air pump group is composed of 4 air pumps, the number of the air intake branch pipes is 2, the air intake branch pipes are connected to the air outlet end of the air pump, and the air collecting pipe is connected to the air intake pipe.

[0011] Preferably, the aeration assembly further comprises a control cabinet, and the control cabinet is electrically connected to the air pump assembly.

[0012] Preferably, a second regulating valve is installed on the surface of the gas distribution pipe.

[0013] Preferably, a pressure sensor is provided on the surface of the intake branch pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The sewage treatment equipment of the optimized aeration system is equipped with anoxic zone, primary aerobic zone, secondary aerobic zone, coagulation tank and coagulation sedimentation zone. Sewage enters the sewage treatment tank through the collection pipe network. The sewage passes through the anoxic zone, primary aerobic zone, secondary aerobic zone, coagulation tank and coagulation sedimentation zone in turn to complete aeration and impurity separation, and then passes through the water outlet and sludge outlet to discharge water and sludge respectively, which is convenient for separating impurities in sewage.

[0016] 2. The sewage treatment equipment of the optimized aeration system is provided with an aeration component. When the water inlet load is high, the number of air pumps in the air pump group in the aeration component can be increased to increase the air supply of the system, so as to ensure that the primary aerobic zone and the secondary aerobic zone have enough oxygen to degrade organic matter and ammonia nitrogen; when the water inlet load is low, the number of air pumps in the air pump group in the aeration component can be reduced to prevent excessive aeration from causing the sludge in the system to disintegrate. The air intake can be adjusted by increasing or decreasing the air pumps, so as to facilitate the adjustment of the aeration volume.

[0017] 3. The sewage treatment equipment of the optimized aeration system is provided with a second regulating valve, through which the gas volume in the primary aerobic zone can be appropriately increased and the gas volume in the secondary aerobic zone can be decreased, so as to prevent the nitrification liquid from flowing back and carrying too much oxygen and destroying the anoxic environment in the anoxic zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a side view of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model from top view.

[0020] In the figure: 1. sewage treatment tank; 2. anoxic zone; 3. primary aerobic zone; 4. secondary aerobic zone; 5. coagulation tank; 6. coagulation sedimentation zone; 71. air pump group; 72. air collecting pipe; 73. rectangular connecting pipe; 74. aeration plate; 75. air distribution pipe; 76. air inlet branch pipe; 8. water inlet; 9. water outlet; 10. mud outlet; 11. flushing outlet pipe; 12. first regulating valve; 13. control cabinet; 14. second regulating valve; 15. pressure sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-2 , a sewage treatment equipment for optimizing an aeration system, comprising: a sewage treatment tank 1, an anoxic zone 2 is arranged inside the sewage treatment tank 1, a primary aerobic zone 3 is arranged on one side of the anoxic zone 2, a secondary aerobic zone 4 is arranged on one side of the primary aerobic zone 3, a secondary sedimentation tank is arranged on one side of the secondary sedimentation tank, a coagulation tank 5 is arranged on one side of the secondary sedimentation tank, a coagulation sedimentation zone 6 is arranged on one side of the coagulation tank 5, a water inlet 8 is arranged on one side of the sewage treatment tank 1, a water outlet 9 and a mud discharge port 10 are arranged on the other side of the sewage treatment tank 1, and an aeration component is arranged on the sewage treatment tank 1;

[0023] The aeration assembly includes an air pump group 71, an air collecting pipe 72, a rectangular connecting pipe 73 and an aeration plate 74. An air inlet branch pipe 76 is arranged between the air pump group 71 and the air collecting pipe 72. One end of the air collecting pipe 72 extends to the inside of the primary aerobic zone 3, and the other end of the air collecting pipe 72 is located inside the secondary aerobic zone 4. Both ends of the air collecting pipe 72 are connected to air distribution pipes 75, and the air distribution pipes 75 are connected to the rectangular connecting pipe 73. The aeration plate 74 is installed on the rectangular connecting pipe 73, and the second regulating valve 14 is installed on the surface of the air distribution pipe 75.

[0024] The surface of the rectangular connecting pipe 73 is connected to a flushing air outlet pipe 11 , and the surface of the flushing air outlet pipe 11 is provided with a first regulating valve 12 .

[0025] In a specific embodiment, the air pump group 71 is composed of 4 air pump groups 71, the number of the air intake branch pipes 76 is 2, the air intake branch pipes 76 are connected to the air outlet end of the air pump, and the air collecting pipe 72 is connected to the air intake pipe.

[0026] The aeration assembly further includes a control cabinet 13 , which is electrically connected to the air pump assembly 71 .

[0027] A pressure sensor 15 is provided on the surface of the air intake branch pipe 76. The value change of the pressure sensor 15 is observed. When the pressure suddenly decreases, it is necessary to check whether the air pump is working normally, and whether there is any leakage in the air collecting pipe 72, the rectangular connecting pipe 73, the aeration plate 74, the air distribution pipe 75 and the air intake branch pipe 76; when the pressure suddenly increases, it is necessary to check whether the air collecting pipe 72, the rectangular connecting pipe 73, the aeration plate 74, the air distribution pipe 75 and the air intake branch pipe 76 are blocked.

[0028] Sewage enters the sewage treatment tank 1 through the collection pipe network, and the sewage passes through the anoxic zone 2, the primary aerobic zone 3, the secondary aerobic zone 4, the coagulation tank 5 and the coagulation sedimentation zone 6 in sequence to complete aeration and impurity separation, and then passes through the water outlet 9 and the mud outlet 10 to discharge water and sludge respectively, which is convenient for separating impurities in the sewage. The air pump is started, and the air pump inputs gas through the air inlet branch pipe 76, and then guides it to the rectangular connecting pipe 73 through the air collecting pipe 72 and the air distribution pipe 75, and is discharged through the aeration plate 74. When adjusting the aeration amount, the number of air pumps in the air pump group 71 can be increased to increase the aeration amount. The large system air supply ensures that the primary aerobic zone 3 and the secondary aerobic zone 4 have enough oxygen to degrade organic matter and ammonia nitrogen; when the water inlet load is low, the number of air pumps in the air pump group 71 in the aeration component can be reduced to prevent excessive aeration from causing the sludge in the system to disintegrate. The air intake can be adjusted by increasing or decreasing the air pumps, which is convenient for adjusting the aeration amount. The second regulating valve 14 can appropriately increase the air volume in the primary aerobic zone 3 and decrease the air volume in the secondary aerobic zone 4 through the second regulating valve 14 to prevent the nitrification liquid from reflux and carrying too much oxygen to destroy the anoxic environment of the anoxic zone 2.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment equipment with an optimized aeration system, characterized in that: include: A sewage treatment tank (1), wherein an anoxic zone (2) is arranged inside the sewage treatment tank (1), a primary aerobic zone (3) is arranged on one side of the anoxic zone (2), a secondary aerobic zone (4) is arranged on one side of the primary aerobic zone (3), a secondary sedimentation tank is arranged on one side of the secondary aerobic zone (4), a coagulation tank (5) is arranged on one side of the secondary sedimentation tank, a coagulation sedimentation zone (6) is arranged on one side of the coagulation tank (5), and an aeration component is arranged on the sewage treatment tank (1); The aeration assembly comprises an air pump group (71), an air collecting pipe (72), a rectangular connecting pipe (73) and an aeration plate (74); an air intake branch pipe (76) is arranged between the air pump group (71) and the air collecting pipe (72); one end of the air collecting pipe (72) extends to the inside of the primary aerobic zone (3); the other end of the air collecting pipe (72) is located inside the secondary aerobic zone (4); both ends of the air collecting pipe (72) are connected to air distribution pipes (75); the air distribution pipes (75) are connected to the rectangular connecting pipe (73); and the aeration plate (74) is mounted on the rectangular connecting pipe (73).

2. The sewage treatment equipment according to claim 1, characterized in that: A water inlet (8) is provided on one side of the sewage treatment tank (1), and a water outlet (9) and a mud discharge outlet (10) are provided on the other side of the sewage treatment tank (1).

3. The sewage treatment equipment according to claim 1, characterized in that: The surface of the rectangular connecting pipe (73) is connected to a flushing air outlet pipe (11), and the surface of the flushing air outlet pipe (11) is provided with a first regulating valve (12).

4. The sewage treatment equipment according to claim 1, characterized in that: The air pump group (71) is composed of four air pump groups (71), the number of the air intake branch pipes (76) is two, the air intake branch pipes (76) are connected to the air outlet end of the air pump, and the air collecting pipe (72) is connected to the air intake pipe.

5. The sewage treatment equipment for optimizing the aeration system according to claim 1, characterized in that: The aeration assembly further comprises a control cabinet (13), wherein the control cabinet (13) is electrically connected to the air pump assembly (71).

6. The sewage treatment equipment for optimizing the aeration system according to claim 1, characterized in that: A second regulating valve (14) is installed on the surface of the gas distribution pipe (75).

7. The sewage treatment equipment for optimizing the aeration system according to claim 1, characterized in that: A pressure sensor (15) is provided on the surface of the intake branch pipe (76).

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