Sulfur autotrophic nitrogen removal sewage treatment device

Abstract

The utility model discloses a sulfur autotrophic nitrogen removal sewage treatment device. The sulfur autotrophic nitrogen removal sewage treatment device comprises a three-way valve, a filler mounting pipe, a filter pipe, a vertical branch pipe and a transverse branch pipe, according to the sulfur autotrophic nitrogen removal sewage treatment device, the top end of a filler mounting pipe and a transverse branch pipe are connected to two ports of a three-way valve respectively, a filter pipe is fixedly connected to the bottom end of the filler mounting pipe, the bottom end of a vertical branch pipe is fixedly connected to the top face of the end of the filter pipe, and a stop valve is fixedly mounted between the vertical branch pipe and the transverse branch pipe; a plurality of sulfur autotrophic nitrogen removal mechanisms are arranged in a shell, filler mounting pipes of the plurality of sulfur autotrophic nitrogen removal mechanisms are vertically arranged and are matched with a filter pipe, a vertical branch pipe and a transverse branch pipe to form a bent flow channel, so that sewage needs to pass through a circulation path longer than the shell when flowing in the device, the circulation time is longer at the same flow speed, and the sewage treatment efficiency is improved. Therefore, the contact time of the sewage and the sulfur autotrophic denitrification filter material layer is effectively prolonged, and the denitrification effect is improved.

Description

Technical Field

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

[0002] Nitrogen pollution, one of the main causes of eutrophication in water bodies, has become a critical issue in wastewater treatment, making its effective removal a pressing issue. Sulfur autotrophic denitrification filter media, a novel biological denitrification technology, has revolutionized wastewater treatment with its high efficiency and environmental friendliness. Sulfur autotrophic denitrification filter media utilizes specific microbial communities, using sulfur or sulfide as electron donors, to reduce nitrate and nitrite nitrogen in wastewater to nitrogen gas under anoxic conditions, thereby removing nitrogen. This process not only achieves high denitrification efficiency but also significantly reduces energy consumption.

[0003] However, current technology generally simply stacks the biological carriers together. For example, patent document CN219689536U discloses a sulfur autotrophic denitrification and denitrification sewage treatment device, which includes a reactor body with a water inlet at the bottom, an exhaust port at the top, and a water outlet on one side; a carrier filling area and a three-phase separation area are provided in the reactor body; a first guide ring plate and a second guide ring plate are provided in the three-phase separation area; the first guide ring plate defines a gas separation chamber connected to the exhaust port on its inner side, and defines a settling chamber connected to the water outlet between its outer side and the reactor body, wherein a filter plate is provided in the settling chamber below the water outlet; the bottom of the second guide ring plate faces the carrier filling area, and the top extends into the gas separation chamber; a first return channel connected to the settling chamber is provided between the second guide ring plate and the first guide ring plate, and a second return channel connecting the settling chamber and the carrier filling area is provided between the second guide ring plate and the reactor body. This sewage treatment device can effectively reduce blockage during sewage treatment.

[0004] In the above-mentioned prior art, sulfur autotrophic denitrification filter material is directly filled in the reactor body, the flow channel length is short, and the contact time with the material is short, resulting in poor denitrification effect in the anoxic tank. Therefore, a new sulfur autotrophic denitrification sewage treatment device is proposed to optimize the above-mentioned prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a sulfur autotrophic denitrification sewage treatment device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A sulfur autotrophic denitrification wastewater treatment device comprises a shell, with a water inlet pipe and a water outlet pipe fixedly mounted on both sides of the top of the shell, a plurality of sulfur autotrophic denitrification mechanisms disposed between the water inlet pipe and the water outlet pipe, the sulfur autotrophic denitrification mechanisms comprising a three-way valve, a filler installation pipe, a filter pipe, a vertical branch pipe, a transverse branch pipe, and a stop valve, the three-way valve of the sulfur autotrophic denitrification mechanism close to the water inlet pipe being fixedly mounted to the water inlet pipe, the transverse branch pipe of the sulfur autotrophic denitrification mechanism close to the water outlet pipe being fixedly mounted to the water outlet pipe, and the three-way valve of the adjacent sulfur autotrophic denitrification mechanism being fixedly mounted to the transverse branch pipe;

[0008] The top end of the packing installation pipe and the horizontal branch pipe are respectively connected to the two ports of the three-way valve, the filter pipe is fixedly connected to the bottom end of the packing installation pipe, the bottom end of the vertical branch pipe is fixedly connected to the top surface of the end of the filter pipe, and the stop valve is fixedly installed between the vertical branch pipe and the horizontal branch pipe.

[0009] As a further solution of the present invention: an inspection port is provided on the front surface of the shell corresponding to each sulfur autotrophic denitrification mechanism, and a sealing plate adapted thereto is provided on the outside of the inspection port. The sealing plate is fixed to the shell by bolts, and a circular hole for the bolt to pass through is provided on the sealing plate, and a threaded hole for the bolt to be threadedly connected is provided on the shell.

[0010] As a further solution of the present invention: the packing installation tube is provided with an installation notch, which divides the packing installation tube into two sections, upper and lower sections. Clamps that are compatible with the packing installation tube are symmetrically provided on the outside of the installation notch. The hoops are fastened and fixed by bolts. The two sides of the hoops extend outward, and the extended part is provided with a circular hole for the bolt to pass through. The end of the bolt is threadedly connected to the nut. The inner sides of both ends of the hoops are fixedly connected with a clamp, and an annular clamping groove is provided on the packing installation tube corresponding to the clamp.

[0011] As a further solution of the present invention: a placement tube adapted to the inner side of the clamp is provided, the bottom end of the placement tube is fixedly connected to the inner side with a first partition net, the bottom end of the placement tube is fitted with the bottom of the installation notch, a second partition net is placed on the top of the placement tube, the second partition net is fitted with the top of the installation notch, and the placement tube is filled with a sulfur autotrophic denitrification filter material layer.

[0012] As a further solution of the present invention: the end of the filter tube away from the filler mounting tube is open, and a sealing flange is provided on the outside of the opening. The sealing flange is fixed to the filter tube by bolts, and the ends of the sealing flange and the filter tube are provided with circular holes for the bolts to pass through, and the ends of the bolts are threadedly connected with nuts.

[0013] As a further solution of the present invention: the sealing flange is fixedly connected to a filter screen cartridge on one side close to the filter tube, the filter screen cartridge is inserted into the filter tube and a rubber ring is fixedly connected to the end face, the rubber ring rests on the retaining ring, and the retaining ring is fixedly connected to the inner wall of the filter tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with multiple sulfur autotrophic denitrification mechanisms inside the shell. The filler installation pipes of the multiple sulfur autotrophic denitrification mechanisms are arranged vertically, and cooperate with the filter tube, vertical branch pipe, and horizontal branch pipe to form a curved flow channel, so that the sewage needs to flow through a flow path longer than the length of the shell itself when flowing in the device. At the same flow rate, the circulation time is longer, thereby effectively increasing the contact time between the sewage and the sulfur autotrophic denitrification filter material layer and improving the denitrification effect.

[0016] 2. A filter cylinder is installed in the filter tube, so that the sewage flowing through can be filtered through the filter cylinder, thereby reducing impurities in the sewage.

[0017] 3. The sulfur autotrophic denitrification filter material layer is filled in the placement tube and isolated by the first partition screen and the second partition screen. The placement tube is installed in the installation gap of the filler installation tube by a clamp, thereby forming an assembled installation effect. The filter cylinder is assembled and fixed by a sealing flange, and the front end gap is sealed by the cooperation of the rubber ring and the retaining ring, thereby forming an assembled installation effect. The fluid flow direction of the sulfur autotrophic denitrification mechanism can be switched by adjusting and coordinating the three-way valve and the stop valve, so that the sealing plate can be opened after a period of use, thereby isolating the corresponding sulfur autotrophic denitrification mechanism and conveniently replacing the sulfur autotrophic denitrification filter material layer and cleaning the filter cylinder, which is convenient for the inspection and maintenance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a sulfur autotrophic denitrification wastewater treatment device.

[0019] Figure 2 This is a diagram showing the sulfur autotrophic denitrification mechanism in a sulfur autotrophic denitrification wastewater treatment device.

[0020] Figure 3 This is a cross-sectional view of the local structure of a sulfur autotrophic denitrification sewage treatment device.

[0021] Figure 4 This is a front view of a sulfur autotrophic denitrification sewage treatment device.

[0022] In the figure: 1. Shell; 2. Water inlet pipe; 3. Water outlet pipe; 4. Sulfur autotrophic denitrification mechanism; 5. Three-way valve; 6. Packing installation pipe; 7. Filter tube; 8. Vertical branch pipe; 9. Horizontal branch pipe; 10. Stop valve; 11. Sealing plate; 12. Clamp; 13. Clamp; 14. Annular groove; 15. Placement pipe; 16. First screen; 17. Second screen; 18. Sulfur autotrophic denitrification filter material layer; 19. Sealing flange; 20. Filter cylinder; 21. Rubber ring; 22. Retaining ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 In an embodiment of the present utility model, a sulfur autotrophic denitrification sewage treatment device includes a shell 1, on both sides of the top of the shell 1, a water inlet pipe 2 and a water outlet pipe 3 are fixedly installed, a plurality of sulfur autotrophic denitrification mechanisms 4 are provided between the water inlet pipe 2 and the water outlet pipe 3, the sulfur autotrophic denitrification mechanism 4 includes a three-way valve 5, a filler installation pipe 6, a filter pipe 7, a vertical branch pipe 8, a horizontal branch pipe 9 and a stop valve 10, the three-way valve 5 of the sulfur autotrophic denitrification mechanism 4 close to the water inlet pipe 2 is fixedly installed with the water inlet pipe 2, the horizontal branch pipe 9 of the sulfur autotrophic denitrification mechanism 4 close to the water outlet pipe 3 is fixedly installed with the water outlet pipe 3, and the three-way valve 5 of the adjacent sulfur autotrophic denitrification mechanism 4 is fixedly installed with the horizontal branch pipe 9;

[0025] The top end of the packing installation pipe 6 and the horizontal branch pipe 9 are respectively connected to the two ports of the three-way valve 5, the filter pipe 7 is fixedly connected to the bottom end of the packing installation pipe 6, the bottom end of the vertical branch pipe 8 is fixedly connected to the top surface of the end of the filter pipe 7, and the stop valve 10 is fixedly installed between the vertical branch pipe 8 and the horizontal branch pipe 9.

[0026] A plurality of sulfur autotrophic denitrification mechanisms 4 are arranged inside the shell 1. The filler mounting pipes 6 of the plurality of sulfur autotrophic denitrification mechanisms 4 are arranged vertically, and cooperate with the filter tube 7, the vertical branch pipe 8, and the horizontal branch pipe 9 to form a curved flow channel, so that the sewage needs to flow through a flow path that is longer than the length of the shell 1 itself when flowing in the device, and the circulation time is longer at the same flow rate, thereby effectively increasing the contact time between the sewage and the sulfur autotrophic denitrification filter material layer 18 and improving the denitrification effect.

[0027] The front surface of the shell 1 is provided with an inspection port corresponding to each sulfur autotrophic denitrification mechanism 4, and a sealing plate 11 adapted thereto is provided on the outside of the inspection port. The sealing plate 11 is fixed to the shell 1 by bolts. A circular hole for the bolt to pass through is provided on the sealing plate 11, and a threaded hole for the bolt to be threadedly connected is provided on the shell 1.

[0028] A mounting notch is provided on the packing mounting tube 6, which divides the packing mounting tube 6 into two sections, an upper section and an lower section. A clamp 12 that is compatible with the packing mounting tube 6 is symmetrically provided on the outside of the mounting notch. The clamps 12 are fixed by bolts. Both sides of the clamp 12 extend outward, and a circular hole for the bolt to pass through is provided in the extended part. The end of the bolt is threadedly connected to the nut. A clamp 13 is fixedly connected to the inner side of both ends of the clamp 12, and an annular clamping groove 14 is provided on the packing mounting tube 6 corresponding to the clamp 13.

[0029] The inner side of the clamp 12 is provided with a placement tube 15 that is compatible with it. The bottom end of the placement tube 15 is fixedly connected to the inner side with a first partition net 16. The bottom end of the placement tube 15 is fitted with the bottom of the installation notch. The top of the placement tube 15 is placed with a second partition net 17. The second partition net 17 is fitted with the top of the installation notch. The placement tube 15 is filled with a sulfur autotrophic denitrification filter material layer 18.

[0030] The end of the filter tube 7 away from the packing installation tube 6 is open, and a sealing flange 19 is provided on the outside of the opening. The sealing flange 19 is fixed to the filter tube 7 by bolts. The ends of the sealing flange 19 and the filter tube 7 are provided with round holes for the bolts to pass through, and the ends of the bolts are threaded with nuts.

[0031] A filter screen cartridge 20 is fixedly connected to one side of the sealing flange 19 close to the filter tube 7 . The filter screen cartridge 20 is inserted into the filter tube 7 and a rubber ring 21 is fixedly connected to the end face. The rubber ring 21 rests on a retaining ring 22 , and the retaining ring 22 is fixedly connected to the inner wall of the filter tube 7 .

[0032] A filter screen cartridge 20 is installed in the filter tube 7 so that the sewage flowing through can be filtered by the filter screen cartridge 20, thereby reducing impurities in the sewage.

[0033] The sulfur autotrophic denitrification filter material layer 18 is filled in the placement tube 15 and isolated by the first partition net 16 and the second partition net 17. The placement tube 15 is installed in the installation gap of the filler installation tube 6 by the clamp 12, thereby forming an assembled installation effect. The filter screen cartridge 20 is assembled and fixed by the sealing flange 19, and the front end gap is sealed by the cooperation of the rubber ring 21 and the retaining ring 22, thereby forming an assembled installation effect. The fluid flow direction of the sulfur autotrophic denitrification mechanism 4 can be switched by adjusting and cooperating with the three-way valve 5 and the stop valve 10, so that the sealing plate 11 can be opened after a period of use, thereby isolating the corresponding sulfur autotrophic denitrification mechanism 4 and conveniently replacing the sulfur autotrophic denitrification filter material layer 18 and cleaning the filter screen cartridge 20, which facilitates the inspection and maintenance of the device.

[0034] The working principle of this utility model is:

[0035] During use, the water inlet pipe 2 is connected to the adjacent filler installation pipe 6 through the adjustment of the three-way valve 5 and the stop valve 10, and the water outlet pipe 3 is connected to the vertical branch pipe 8 through the adjacent horizontal branch pipe 9. The sewage of the sulfur autotrophic denitrification mechanism 4 passes through the three-way valve 5, the filler installation pipe 6, the filter pipe 7, the vertical branch pipe 8, the stop valve 10 and the horizontal branch pipe 9 to form a curved flow channel, so that the sewage enters through the water inlet pipe 2, and the incoming sewage contacts and reacts with the sulfur autotrophic denitrification filter material layer 18 to denitrify, and is filtered by the filter cylinder 20 at the same time, thereby forming a purification effect. After a period of use, when the sulfur autotrophic denitrification filter material layer 18 is replaced or the filter cylinder 20 is cleaned, the sulfur autotrophic denitrification mechanism 4 is connected to the vertical branch pipe 8 through the adjustment of the three-way valve 5 and the stop valve 10. The three-way valve 5 in the sulfur autotrophic denitrification mechanism 4 is directly connected to the horizontal branch pipe 9, and the filler installation pipe 6 and the vertical branch pipe 8 are both closed. At this time, the clamp 12 can be removed to expose the placement pipe 15, thereby removing the placement pipe 15, and further pouring out the sulfur autotrophic denitrification filter material layer 18 to replace it with a new sulfur autotrophic denitrification filter material layer 18, and then reverse the operation to install it. At the same time, the sealing flange 19 can be removed to remove the filter mesh cylinder 20 for cleaning. After cleaning, the filter mesh cylinder 20 is reinserted, and the rubber ring 21 is pressed against the retaining ring 22, and the sealing flange 19 is fixed at the same time, thereby completing the maintenance of the sulfur autotrophic denitrification mechanism 4. After the maintenance is completed, the three-way valve 5 and the stop valve 10 are adjusted to switch the flow channel.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sulfur autotrophic denitrification sewage treatment device, comprising a housing (1), characterized in that: A water inlet pipe (2) and a water outlet pipe (3) are fixedly installed on both sides of the top of the shell (1), and a plurality of sulfur autotrophic denitrification mechanisms (4) are arranged between the water inlet pipe (2) and the water outlet pipe (3). The sulfur autotrophic denitrification mechanism (4) comprises a three-way valve (5), a filler installation pipe (6), a filter pipe (7), a vertical branch pipe (8), a transverse branch pipe (9) and a stop valve (10). The three-way valve (5) of the sulfur autotrophic denitrification mechanism (4) close to the water inlet pipe (2) is fixedly installed with the water inlet pipe (2), the transverse branch pipe (9) of the sulfur autotrophic denitrification mechanism (4) close to the water outlet pipe (3) is fixedly installed with the water outlet pipe (3), and the three-way valve (5) of the adjacent sulfur autotrophic denitrification mechanism (4) is fixedly installed with the transverse branch pipe (9); The top end of the packing installation pipe (6) and the horizontal branch pipe (9) are respectively connected to the two ports of the three-way valve (5); the filter pipe (7) is fixedly connected to the bottom end of the packing installation pipe (6); the bottom end of the vertical branch pipe (8) is fixedly connected to the top surface of the end of the filter pipe (7); and the stop valve (10) is fixedly installed between the vertical branch pipe (8) and the horizontal branch pipe (9).

2. A sulfur autotrophic denitrification sewage treatment device according to claim 1, characterized in that: The front surface of the shell (1) is provided with an inspection port corresponding to each sulfur autotrophic denitrification mechanism (4), and a sealing plate (11) adapted thereto is provided on the outside of the inspection port. The sealing plate (11) is fixedly mounted to the shell (1) by bolts.

3. A sulfur autotrophic denitrification sewage treatment device according to claim 1, characterized in that: The packing installation tube (6) is provided with a mounting notch, and a clamp (12) adapted to the packing installation tube (6) is symmetrically provided outside the mounting notch. The clamps (12) are fixed by bolts, and the inner sides of both ends of the clamp (12) are fixedly connected with a clamp (13). An annular clamping groove (14) is provided on the packing installation tube (6) corresponding to the clamp (13).

4. A sulfur autotrophic denitrification sewage treatment device according to claim 3, characterized in that: The inner side of the clamp (12) is provided with a placement tube (15) adapted thereto, the bottom end of the placement tube (15) is fixedly connected to the inner side with a first partition net (16), the bottom end of the placement tube (15) is fitted with the bottom of the installation notch, the top end of the placement tube (15) is placed with a second partition net (17), the second partition net (17) is fitted with the top of the installation notch, and the placement tube (15) is filled with a sulfur autotrophic denitrification filter material layer (18).

5. The sulfur autotrophic denitrification sewage treatment device according to claim 1, characterized in that: One end of the filter tube (7) away from the filler installation tube (6) is opened, and a sealing flange (19) is provided outside the opening. The sealing flange (19) is fixedly installed with the filter tube (7) by bolts.

6. A sulfur autotrophic denitrification sewage treatment device according to claim 5, characterized in that: A filter screen cartridge (20) is fixedly connected to one side of the sealing flange (19) close to the filter tube (7). The filter screen cartridge (20) is inserted into the filter tube (7) and a rubber ring (21) is fixedly connected to the end face thereof. The rubber ring (21) abuts against a retaining ring (22), and the retaining ring (22) is fixedly connected to the inner wall of the filter tube (7).

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