Wastewater denitrification carbon source adding and emission value linkage device

Abstract

The utility model relates to the technical field of wastewater denitrification, and discloses a wastewater denitrification carbon source feeding and discharge value linkage device which comprises a wastewater tank, the outer wall of one end of the wastewater tank is connected with a water inlet pipe, one side of the wastewater tank is provided with a carbon source tank, and the top ends of the carbon source tank and the wastewater tank are connected with a carbon conveying pipe. A material pump is assembled at the end, close to the carbon source tank, of the carbon conveying pipe, a flow meter is assembled in the middle of the carbon conveying pipe, a filter of a double-layer structure is assembled at the end, close to the waste water tank, of the carbon conveying pipe, and an annular partition cylinder is arranged on the inner layer structure of the filter. The waste water denitrification carbon source adding and emission value linkage device is provided with the material pump and the flow meter for monitoring and recording the material amount of the added carbon source in real time, and the statistical matching of the material amount of the added carbon source and the nitrogen emission amount is realized in cooperation with the nitrogen emission value monitored by the ammonia nitrogen sensor at the discharge pipe; the carbon source input rate can be conveniently adjusted according to the wastewater denitrification operation rate, the use of materials is easy to control, and the applicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater denitrification, in particular to a wastewater denitrification carbon source dosing and discharge value linkage device. Background Art

[0002] Nitrogen removal from wastewater is the process of removing nitrogen from wastewater to prevent eutrophication of water bodies. In the process of wastewater treatment, a class of nutrients containing carbon elements that can be used by microorganisms for growth and reproduction are collectively referred to as carbon sources. Since wastewater contains inorganic carbon sources and aeration will supplement inorganic carbon sources, it is not necessary to add inorganic carbon sources in actual production. The carbon source referred to in wastewater treatment is an organic carbon source.

[0003] After searching, it was found that there is a special device for deep denitrification process of high nitrogen organic wastewater with publication number CN205740642U, including a biochemical tank, a nanofiltration unit and a deep denitrification reaction tank. The high nitrogen organic wastewater is sent to the biochemical tank to solve the problem that the biochemical effluent of the sewage treatment plant not only has a large discharge volume, but also has a high total nitrogen concentration in the effluent. The utility model does not have a monitoring device for the nitrogen emission after denitrification in the wastewater treatment, and cannot adjust the carbon source input according to the nitrogen emission linkage carbon source input structure, and the applicability is insufficient. Therefore, we propose a wastewater denitrification carbon source addition and emission value linkage device. Utility Model Content

[0004] The purpose of the utility model is to provide a wastewater denitrification carbon source addition and discharge value linkage device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a wastewater denitrification carbon source addition and discharge value linkage device, comprising:

[0006] A wastewater tank, wherein an outer wall at one end of the wastewater tank is connected to a water inlet pipe, a carbon source tank is placed on one side of the wastewater tank, a carbon delivery pipe is connected to the top of the carbon source tank and the wastewater tank, a material pump is installed at one end of the carbon delivery pipe close to the carbon source tank, a flow meter is installed in the middle of the carbon delivery pipe, and a double-layer filter is installed at one end of the carbon delivery pipe close to the wastewater tank, the inner layer structure of the filter is provided with an annular spacer, the lower end of the spacer is connected to a filter element, and the filter element is placed at the lower end of the inner layer structure of the filter;

[0007] A discharge pipe is connected to the outer wall of the wastewater tank away from the wastewater tank, and an ammonia nitrogen sensor is installed at one end of the discharge pipe close to the wastewater tank.

[0008] Furthermore, the carbon source tank is connected to the wastewater tank via a carbon delivery pipe, and the carbon delivery pipe is connected to the filter via a material pump and a flow meter, and the center axis of the spacer coincides with that of the filter.

[0009] Furthermore, the filter is connected to the wastewater tank via a spacer, a filter element and a carbon transport pipe, and the wastewater tank is connected to the discharge pipe via an ammonia nitrogen sensor.

[0010] Furthermore, a first motor is installed at the top of the wastewater tank by bolts, the output shaft of the first motor is connected to a roller, and the roller is passed through the inner side of the wastewater tank through a bearing, and stirring rods are fixed to the outer walls of the four corners of the roller.

[0011] Furthermore, the stirring rod is symmetrically arranged with respect to the central axis of the roller, and the stirring rod is rotationally connected to the wastewater tank through the roller and the output shaft of the first motor.

[0012] Furthermore, a drain pipe is connected to the middle outer wall of one end of the wastewater tank, a control box is installed in the middle of the drain pipe, a second motor is installed on the outer wall of one side of the control box by bolts, and the output shaft of the second motor is connected to a circular partition through a bearing.

[0013] Furthermore, the partition plate matches the end surface structure of the drain pipe, and the partition plate is rotatably connected to the control box through the output shaft of the second motor.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The wastewater denitrification carbon source addition and emission value linkage device is provided with a material pump and a flow meter for real-time monitoring and recording of the amount of carbon source material input, and cooperates with the nitrogen emission value monitored by the ammonia nitrogen sensor at the discharge pipe to achieve statistical matching of the amount of carbon source material input and the nitrogen emission, which is convenient for adjusting the carbon source input rate according to the wastewater denitrification operation rate, easy to control the use of materials, and better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the wastewater tank of the utility model;

[0017] Figure 2 This is a schematic diagram of the enlarged structure of the carbon transport pipe part of the utility model;

[0018] Figure 3 This is a partial cross-sectional enlarged structural schematic diagram of the wastewater tank of the utility model;

[0019] Figure 4 It is a partial cross-sectional enlarged structural schematic diagram of the control box of the utility model.

[0020] In the figure: 1. Wastewater tank; 2. Water inlet pipe; 3. Carbon source tank; 4. Carbon delivery pipe; 5. Material pump; 6. Flow meter; 7. Filter; 8. Septum cylinder; 9. Filter element; 10. Discharge pipe; 11. Ammonia nitrogen sensor; 12. First motor; 13. Roller; 14. Stirring rod; 15. Drain pipe; 16. Control box; 17. Second motor; 18. Partition. 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] The utility model provides a wastewater denitrification carbon source dosing and discharge value linkage device through improvement, please refer to Figure 1-Figure 3 , including: a wastewater tank 1, an outer wall of one end of the wastewater tank 1 is connected to a water inlet pipe 2, a carbon source tank 3 is placed on one side of the wastewater tank 1, a carbon delivery pipe 4 is connected to the top of the carbon source tank 3 and the wastewater tank 1, the carbon source tank 3 is connected to the wastewater tank 1 through the carbon delivery pipe 4, the carbon delivery pipe 4 is equipped with a material pump 5 near the end of the carbon source tank 3, a flow meter 6 is equipped in the middle of the carbon delivery pipe 4, and a double-layer filter 7 is equipped with the end of the carbon delivery pipe 4 near the wastewater tank 1, and the carbon delivery pipe 4 is connected to the filter 7 through the material pump 5 and the flow meter 6. The material pump 5 and the flow meter 6 are used to monitor and record the amount of carbon source material input in real time, and cooperate with the nitrogen emission value monitored by the ammonia nitrogen sensor 11 at the discharge pipe 10 to achieve statistical matching between the amount of carbon source material input and the nitrogen emission, so as to facilitate the adjustment of the carbon source input rate according to the wastewater denitrification operation rate, easy to control the use of materials, and better applicability; the inner structure of the filter 7 An annular spacer 8 is provided, and the spacer 8 coincides with the central axis position of the filter 7. The lower end of the spacer 8 is connected to a filter element 9, and the filter element 9 is placed at the inner lower end of the outer structure of the filter 7. The filter 7 is connected to the wastewater tank 1 through the spacer 8, the filter element 9 and the carbon transport pipe 4. The filter 7 is used to filter the carbon source input into the wastewater tank 1 through the spacer 8 and the filter element 9, so that the carbon source input into the wastewater tank 1 is in a small volume state, which is convenient for input into the wastewater for denitrification operation; a discharge pipe 10 is connected to the outer wall of the wastewater tank 1 away from the wastewater tank 1, and an ammonia nitrogen sensor 11 is installed at one end of the discharge pipe 10 close to the wastewater tank 1, and the wastewater tank 1 is connected to the discharge pipe 10 through the ammonia nitrogen sensor 11. The ammonia nitrogen sensor 11 is used to monitor the emission of nitrogen-containing gas emitted after denitrification of the wastewater, which is convenient for linkage adjustment, matching and comparison with the amount of carbon source input.

[0023] See also Figure 3 A wastewater denitrification carbon source addition and discharge linkage device, comprising: a first motor 12 is installed on the top of a wastewater tank 1 by bolts, the output shaft of the first motor 12 is connected to a roller 13, and the roller 13 is penetrated on the inner side of the wastewater tank 1 by a bearing, and the bearing is used to reduce the rotation resistance of the roller 13 inside the wastewater tank 1, and seal the connection between the wastewater tank 1 and the roller 13; stirring rods 14 are fixed to the outer walls of the four corners of the roller 13, the stirring rods 14 are symmetrically arranged about the central axis of the roller 13, and the stirring rods 14 are rotatably connected to the wastewater tank 1 through the roller 13 and the output shaft of the first motor 12, and the stirring rods 14 are arranged to stir and mix the wastewater material into which the carbon source is added, so as to improve the sewage treatment rate involving the carbon source.

[0024] See also Figure 1 and Figure 4 A wastewater denitrification carbon source addition and emission value linkage device comprises: a drain pipe 15 is connected to the middle outer wall of one end of a wastewater tank 1, the drain pipe 15 is used to discharge the treated wastewater, a control box 16 is installed in the middle of the drain pipe 15, a second motor 17 is installed on the outer wall of one side of the control box 16 by bolts, the output shaft of the second motor 17 is connected to a circular partition 18 through a bearing, the partition 18 matches the end surface structure of the drain pipe 15, and the partition 18 is rotatably connected to the control box 16 through the output shaft of the second motor 17, and the partition 18 is used to rotate through the drive of the second motor 17 to realize the opening and closing of the drain pipe 15 and periodic drainage.

[0025] Working principle: For this type of wastewater denitrification carbon source addition and discharge value linkage device, the staff first discharges the wastewater to be treated into the wastewater tank 1 through the water inlet pipe 2, and then extracts the carbon source from the carbon source tank 3 through the material pump 5, and inputs it into the filter 7 after being recorded by the flow meter 6. The carbon source is filtered through the partition tube 8 and the filter element 9 in the filter 7, and some of the larger carbon source substances are filtered out, so that the smaller carbon source substances enter the wastewater tank 1 through the carbon delivery pipe 4, which is convenient for the denitrification operation. Then the carbon source entering the wastewater tank 1 is driven by the first motor 12 to drive the roller 13 The stirring rod 14 rotates and is fully stirred together with the wastewater to increase the rate of denitrification operation. Finally, the nitrogen-containing gas is discharged from the discharge pipe 10, and the ammonia nitrogen content and concentration are monitored by the ammonia nitrogen sensor 11. After the staff monitors the data, it is linked with the carbon source transmission rate monitored by the flow meter 6 to increase the carbon source input when the nitrogen emission rate is insufficient, and reduce the carbon source input when the nitrogen emission rate is high to improve applicability. Finally, the treated wastewater is discharged through the drain pipe 15 by controlling the opening and closing of the partition 18 in the control box 16 through the second motor 17.

[0026] 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 wastewater denitrification carbon source addition and discharge value linkage device, characterized in that: include: A wastewater tank (1), wherein an outer wall of one end of the wastewater tank (1) is connected to a water inlet pipe (2), a carbon source tank (3) is arranged on one side of the wastewater tank (1), a carbon delivery pipe (4) is connected to the top of the carbon source tank (3) and the wastewater tank (1), a material pump (5) is installed at one end of the carbon delivery pipe (4) close to the carbon source tank (3), a flow meter (6) is installed in the middle of the carbon delivery pipe (4), and a double-layer filter (7) is installed at one end of the carbon delivery pipe (4) close to the wastewater tank (1), the inner layer structure of the filter (7) is provided with an annular spacer (8), the lower end of the spacer (8) is connected to a filter element (9), and the filter element (9) is arranged at the lower end of the inner layer structure of the filter (7); A discharge pipe (10) is connected to the outer wall of the wastewater tank (1) at a side away from the wastewater tank (1), and an ammonia nitrogen sensor (11) is installed at one end of the discharge pipe (10) close to the wastewater tank (1).

2. A wastewater denitrification carbon source addition and discharge value linkage device according to claim 1, characterized in that: The carbon source tank (3) is connected to the wastewater tank (1) via a carbon delivery pipe (4), and the carbon delivery pipe (4) is connected to the filter (7) via a material pump (5) and a flow meter (6), and the center axis positions of the spacer (8) and the filter (7) coincide.

3. A wastewater denitrification carbon source addition and discharge value linkage device according to claim 1, characterized in that: The filter (7) is connected to the wastewater tank (1) via a spacer (8), a filter element (9) and a carbon transport pipe (4), and the wastewater tank (1) is connected to the discharge pipe (10) via an ammonia nitrogen sensor (11).

4. A wastewater denitrification carbon source addition and discharge value linkage device according to claim 1, characterized in that: A first motor (12) is installed at the top of the wastewater tank (1) by means of bolts, the output shaft of the first motor (12) is connected to a roller (13), and the roller (13) is arranged on the inner side of the wastewater tank (1) via a bearing, and stirring rods (14) are fixed to the outer walls of the four corners of the roller (13).

5. A wastewater denitrification carbon source addition and discharge linkage device according to claim 4, characterized in that: The stirring rod (14) is symmetrically arranged with respect to the central axis of the rotating roller (13), and the stirring rod (14) is rotationally connected to the waste water tank (1) via the rotating roller (13) and the output shaft of the first motor (12).

6. A wastewater denitrification carbon source addition and discharge linkage device according to claim 1, characterized in that: A drainage pipe (15) is connected to the outer wall in the middle of one end of the wastewater tank (1), a control box (16) is installed in the middle of the drainage pipe (15), a second motor (17) is installed on the outer wall of one side of the control box (16) by bolts, and the output shaft of the second motor (17) is connected to a circular partition (18) by a bearing.

7. A wastewater denitrification carbon source addition and discharge value linkage device according to claim 6, characterized in that: The partition plate (18) matches the end surface structure of the drainage pipe (15), and the partition plate (18) is rotatably connected to the control box (16) via the output shaft of the second motor (17).

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