Sulfur autotrophic nitrogen removal integrated sewage treatment equipment

Abstract

The utility model belongs to the field of sewage treatment equipment, and particularly relates to sulfur autotrophic nitrogen removal integrated sewage treatment equipment which comprises a supporting box, a treatment pond is fixedly mounted at the top of the supporting box, a pretreatment box with an opening in the bottom is mounted on the inner wall of the treatment pond, and the pretreatment box extends to the position above the treatment pond. A water inlet pipe is arranged at the top of the pretreatment box, a water outlet pipe is arranged on one side of the treatment pond, a placement frame is mounted in the pretreatment box through a detachable structure, a sulfur autotrophic nitrogen removal filler layer for sewage treatment is placed in the placement frame, and transmission shafts are rotationally mounted on the inner walls of the two sides of the pretreatment box; the ends, close to each other, of the two transmission shafts are fixedly provided with the same spraying pipe. The sewage treatment device is reasonable in design, sewage can be treated under the matching of the sulfur autotrophic nitrogen removal filler layer and the aeration pipeline, and the sewage is uniformly distributed above the sulfur autotrophic nitrogen removal filler layer through the swinging of the spraying pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a sulfur autotrophic and denitrification integrated sewage treatment equipment. Background Art

[0002] Currently, the mainstream technology for wastewater treatment is the traditional activated sludge process. However, this process produces flocculent sludge, which has low resistance to shock loads and harmful substances, and also contains a low microbial biomass. Compared to traditional activated sludge, granular sludge has a higher microbial biomass, stronger activity, better settling properties, and greater resistance to shock loads and toxic substances. Anaerobic granular sludge has been widely used in wastewater treatment, but aerobic granular sludge technology is less widely used.

[0003] However, the integrated sewage treatment equipment disclosed in the Chinese patent announcement with announcement number CN112408600A includes an inlet pipe, an anaerobic ammonia oxidation tank, an aeration tank, a short-cut nitrification tank, a water collection sedimentation tank and an outlet pipe. The anaerobic ammonia oxidation tank is connected to the aeration tank via an overflow pipe, and the aeration tank is connected to the short-cut nitrification tank via the short-cut nitrification tank inlet pipe. A first water distribution device is provided in the short-cut nitrification tank, an overflow weir connected to the short-cut nitrification tank is provided on the side wall of the water collection sedimentation tank, the water collection sedimentation tank is connected to the anaerobic ammonia oxidation tank via a return pipe, and a second water distribution device is provided at the bottom of the anaerobic ammonia oxidation tank.

[0004] In actual use, it was found that the aeration tube lacked a bubble breaking mechanism, which made it easy for the effluent sewage to have insufficient contact with the gas. At the same time, the sewage was denitrified by the sulfur autotrophic denitrification filler, but the sewage could not be evenly sprayed onto the sulfur autotrophic denitrification filler, which easily led to insufficient denitrification. Therefore, we proposed a sulfur autotrophic denitrification integrated sewage treatment equipment to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a sulfur autotrophic and denitrification integrated sewage treatment device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The integrated sulfur autotrophic denitrification sewage treatment equipment includes a support box, a treatment tank is fixedly installed on the top of the support box, a pretreatment box with an open bottom is installed on the inner wall of the treatment tank, and the pretreatment box extends to the top of the treatment tank, a water inlet pipe is provided on the top of the pretreatment box, and a water outlet pipe is provided on one side of the treatment tank. A placement frame is installed in the pretreatment box through a detachable structure, and a sulfur autotrophic denitrification filler layer for sewage treatment is placed in the placement frame. Drive shafts are rotatably installed on the inner walls of both sides of the pretreatment box, and the same spray pipe is fixedly installed on the ends of the two drive shafts close to each other, and a hose is installed between the spray pipe and the water inlet pipe.

[0008] Preferably, an aeration pipe is installed on the bottom inner wall of the treatment tank, and a breaking mechanism is provided on the treatment tank, and above the breaking mechanism and the aeration pipe, the breaking mechanism includes a rotating shaft and a breaking rod. The rotating shaft is rotatably installed on the inner walls on both sides of the treatment tank, and a plurality of breaking rods are fixedly installed on the rotating shaft.

[0009] Preferably, a shell is fixedly mounted on one side of the treatment tank, a drive motor is fixedly mounted on one side of the shell, and an output shaft of the drive motor is fixedly connected to the corresponding rotating shaft.

[0010] Preferably, a driving plate is slidably mounted on the inner walls of both sides of the shell, a driving mechanism is provided between the driving plate and the transmission shaft, and an extrusion mechanism is provided between the rotating shaft and the driving plate.

[0011] Preferably, the driving mechanism includes a rack seat and a rotating gear, one end of the transmission shaft extends into the housing and is fixedly mounted with the rotating gear, the rack seat is fixedly mounted on the top of the driving plate, and the rack seat is meshed with the rotating gear.

[0012] Preferably, the squeezing mechanism includes a cam and a squeezing rod, the squeezing rod is fixedly mounted on the bottom of the driving plate, the cam is fixedly mounted on the output shaft of the driving motor, and the bottom end of the squeezing rod is in contact with the cam.

[0013] Preferably, a fixing plate is fixedly mounted on both inner walls of the shell, and the extrusion rod passes through the fixing plate. A return spring is fixedly mounted on the top of the fixing plate, and the top end of the return spring is fixedly mounted on the bottom of the driving plate.

[0014] Beneficial effects of the utility model:

[0015] 1. The sewage is injected into the pretreatment tank through the water inlet pipe, and then sprayed onto the sulfur autotrophic denitrification filler layer through the spray pipe. When the sewage contacts the sulfur autotrophic denitrification filler, the nitrate nitrogen is reduced to nitrogen gas under the action of sulfur autotrophic denitrification bacteria. The denitrified sewage can enter the treatment tank, and oxygen can be injected through the aeration pipe to treat the sewage again.

[0016] 2. By starting the drive motor, the drive motor can drive the rotating shaft to rotate, and the rotating shaft can drive the breaking rod to rotate. The breaking rod can break up the bubbles generated by aeration, so that the gas and sewage are fully in contact;

[0017] 3. Through the cooperation of the rotating shaft, cam, extrusion rod, drive plate and reset spring, the drive plate can be driven to move back and forth. The drive plate can drive the rotating gear to rotate back and forth through the rack seat. The rotating gear can drive the spray pipe to swing back and forth through the transmission shaft, so that the sewage is evenly distributed above the sulfur autotrophic denitrification filler layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the sulfur autotrophic and denitrification integrated sewage treatment equipment proposed in the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the integrated sulfur autotrophic and denitrification sewage treatment equipment proposed in the present invention;

[0020] Figure 3 This is a schematic structural diagram of part A of the integrated sulfur autotrophic and denitrification sewage treatment equipment proposed in the present invention;

[0021] Figure 4 This is a schematic structural diagram of part B of the sulfur autotrophic and denitrification integrated sewage treatment equipment proposed in the present invention.

[0022] In the figure: 1. Support box; 2. Treatment tank; 3. Pretreatment tank; 4. Water inlet pipe; 5. Water outlet pipe; 6. Placement frame; 7. Sulfur autotrophic denitrification filler layer; 8. Spraying pipe; 9. Hose; 10. Aeration pipe; 11. Rotating shaft; 12. Breaking rod; 13. Shell; 14. Drive motor; 15. Cam; 16. Fixed plate; 17. Drive plate; 18. Extrusion rod; 19. Return spring; 20. Rack seat; 21. Transmission shaft; 22. Rotating gear. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0024] Reference Figure 1-4 The sulfur autotrophic denitrification integrated sewage treatment equipment includes a support box, a treatment tank 2 is fixedly installed on the top of the support box 1, a pretreatment box 3 with an open bottom is installed on the inner wall of the treatment tank 2, and the pretreatment box 3 extends to the top of the treatment tank 2, a water inlet pipe 4 is provided on the top of the pretreatment box 3, and a water outlet pipe 5 is provided on one side of the treatment tank 2. A placement frame 6 is installed in the pretreatment box 3 through a detachable structure, and a sulfur autotrophic denitrification filler layer 7 for sewage treatment is placed in the placement frame 6. A transmission shaft 21 is rotatably installed on the inner walls of both sides of the pretreatment box 3, and the same spraying pipe 8 is fixedly installed at one end of the two transmission shafts 21 close to each other, and a hose 9 is installed between the spraying pipe 8 and the water inlet pipe 4. By providing the transmission shaft 21, the spraying pipe 8 can be rotated, so as to facilitate the uniform spraying of sewage onto the sulfur autotrophic denitrification filler layer 7.

[0025] In this embodiment, an aeration pipe 10 is installed on the bottom inner wall of the treatment tank 2, and a breaking mechanism is provided on the treatment tank 2, and the breaking mechanism is above the aeration pipe 10. The breaking mechanism includes a rotating shaft 11 and a breaking rod 12. The rotating shaft 11 is rotatably installed on the inner walls on both sides of the treatment tank 2, and a plurality of breaking rods 12 are fixedly installed on the rotating shaft 11. By starting the drive motor 14, the drive motor 14 can drive the rotating shaft 11 to rotate, and the rotating shaft 11 can drive the breaking rod 12 to rotate. The breaking rod 12 can break up the bubbles generated by aeration, so that the gas and sewage are in full contact.

[0026] In this embodiment, a shell 13 is fixedly installed on one side of the treatment pool 2, and a drive motor 14 is fixedly installed on one side of the shell 13, and the output shaft of the drive motor 14 is fixedly connected to the corresponding rotating shaft 11. By providing the drive motor 14, the drive motor 14 can drive the rotating shaft 11 to rotate.

[0027] In this embodiment, a drive plate 17 is slidably mounted on the inner walls on both sides of the shell 13. A drive mechanism is provided between the drive plate 17 and the transmission shaft 21. An extrusion mechanism is provided between the rotating shaft 11 and the drive plate 17. The drive mechanism includes a rack seat 20 and a rotating gear 22. One end of the transmission shaft 21 extends into the shell 13 and is fixedly mounted with a rotating gear 22. The rack seat 20 is fixedly mounted on the top of the drive plate 17. The rack seat 20 is meshed with the rotating gear 22. By providing the rack seat 20, the movement of the rack seat 20 can drive the rotating gear 22 to rotate.

[0028] In this embodiment, the extrusion mechanism includes a cam 15 and an extrusion rod 18. The extrusion rod 18 is fixedly mounted on the bottom of the driving plate 17. The cam 15 is fixedly mounted on the output shaft of the driving motor 14, and the bottom end of the extrusion rod 18 contacts the cam 15. Fixed plates 16 are fixedly mounted on the inner walls on both sides of the shell 13, and the extrusion rod 18 passes through the fixed plate 16. A return spring 19 is fixedly mounted on the top of the fixed plate 16, and the top end of the return spring 19 is fixedly mounted on the bottom of the driving plate 17. When the cam 15 rotates continuously, the driving plate 17 can be reciprocated up and down. The driving plate 17 can drive the rotating gear 22 to rotate back and forth through the rack seat 20. The rotating gear 22 can drive the spray pipe 8 to swing back and forth through the transmission shaft 21, so that the sewage is evenly distributed above the sulfur autotrophic denitrification filler layer 7.

[0029] In the present invention, sewage is injected into the pretreatment tank 3 through the water inlet pipe 4, and the sewage is sprayed onto the sulfur autotrophic denitrification filler layer 7 through the spray pipe 8. When the sewage contacts the sulfur autotrophic denitrification filler, under the action of the sulfur autotrophic denitrification bacteria, nitrate nitrogen is reduced to nitrogen gas, and the denitrified sewage can enter the treatment tank 2. Oxygen can be injected through the aeration pipe to treat the sewage again. By starting the drive motor 14, the drive motor 14 can drive the rotating shaft 11 to rotate, and the rotating shaft 11 can drive the breaking rod 12 to rotate. The breaking rod 12 can break up the bubbles generated by aeration, so that the gas is fully in contact with the sewage. When the rotating shaft 11 rotates When the cam 15 rotates one circle, the reset spring 19 can drive the driving rod and the extrusion rod 18 to reset. When the cam 15 rotates continuously, the driving plate 17 can move back and forth. The driving plate 17 can drive the rotating gear 22 to rotate back and forth through the rack seat 20. The rotating gear 22 can drive the spray pipe 8 to swing back and forth through the transmission shaft 21, thereby evenly distributing the sewage above the sulfur autotrophic denitrification filler layer 7.

[0030] The above is a detailed introduction to the sulfur autotrophic denitrification integrated sewage treatment equipment provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above examples is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. Sulfur autotrophic denitrification integrated sewage treatment equipment, characterized in that: It comprises a support box (1), a treatment pool (2) is fixedly mounted on the top of the support box (1), a pretreatment box (3) with an open bottom is mounted on the inner wall of the treatment pool (2), and the pretreatment box (3) extends to the top of the treatment pool (2); A water inlet pipe (4) is provided on the top of the pretreatment box (3), a water outlet pipe (5) is provided on one side of the treatment tank (2), a placement frame (6) is installed in the pretreatment box (3) via a detachable structure, and a sulfur autotrophic denitrification filler layer (7) for sewage treatment is placed in the placement frame (6); Transmission shafts (21) are rotatably mounted on the inner walls of both sides of the pretreatment box (3); a same spray pipe (8) is fixedly mounted on the ends of the two transmission shafts (21) close to each other, and a hose (9) is installed between the spray pipe (8) and the water inlet pipe (4).

2. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 1, characterized in that: An aeration pipe (10) is installed on the inner wall of the bottom of the treatment tank (2), and a breaking mechanism is provided on the treatment tank (2), and the breaking mechanism is above the aeration pipe (10).

3. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 2, characterized in that: The dispersing mechanism comprises a rotating shaft (11) and a dispersing rod (12). The rotating shaft (11) is rotatably mounted on the inner walls of both sides of the treatment pool (2), and a plurality of dispersing rods (12) are fixedly mounted on the rotating shaft (11).

4. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 3, characterized in that: A housing (13) is fixedly mounted on one side of the treatment pool (2), a driving motor (14) is fixedly mounted on one side of the housing (13), and an output shaft of the driving motor (14) is fixedly connected to a corresponding rotating shaft (11).

5. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 4, characterized in that: A driving plate (17) is slidably mounted on the inner walls of both sides of the housing (13); a driving mechanism is provided between the driving plate (17) and the transmission shaft (21); and a squeezing mechanism is provided between the rotating shaft (11) and the driving plate (17).

6. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 5, characterized in that: The driving mechanism comprises a rack seat (20) and a rotating gear (22); one end of the transmission shaft (21) extends into the housing (13) and is fixedly mounted with the rotating gear (22); the rack seat (20) is fixedly mounted on the top of the driving plate (17); and the rack seat (20) is meshed with the rotating gear (22).

7. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 5, characterized in that: The extrusion mechanism comprises a cam (15) and an extrusion rod (18), wherein the extrusion rod (18) is fixedly mounted on the bottom of the driving plate (17), the cam (15) is fixedly mounted on the output shaft of the driving motor (14), and the bottom end of the extrusion rod (18) contacts the cam (15).

8. The sulfur autotrophic and denitrification integrated sewage treatment equipment according to claim 7, characterized in that: A fixing plate (16) is fixedly mounted on the inner walls of both sides of the housing (13), and an extrusion rod (18) passes through the fixing plate (16). A return spring (19) is fixedly mounted on the top of the fixing plate (16), and the top end of the return spring (19) is fixedly mounted on the bottom of the driving plate (17).

Images