Integrated nitrate nitrogen detection device

Abstract

The utility model relates to an integrated nitrate nitrogen detection device, and relates to the field of sewage treatment, the integrated nitrate nitrogen detection device comprises a membrane system, a clean water tank, a detection probe and a backwashing system, the membrane system is immersed in a biological tank anoxic zone, the membrane system is communicated with the clean water tank through a water suction pump, the detection probe is arranged in the clean water tank, and the backwashing system is arranged in the clean water tank. And the backwashing system is used for backwashing the membrane system. The sludge mixed liquid is filtered into clear water, the clear water is detected by using the detection probe, and the membrane system is backwashed by combining with the backwash system, so that the accuracy of water quality detection is favorably improved, water quality control is guided, excessive addition of resources such as a carbon source is favorably avoided, energy is saved, consumption is reduced, and up-to-standard discharge is ensured.

Description

Technical Field

[0001] The present application relates to the field of sewage treatment, and in particular to an integrated nitrate nitrogen detection device. Background Art

[0002] At present, the requirements for process data detection in sewage treatment are getting higher and higher. According to the specifications, online instruments such as nitrate nitrogen in the process need to be detected. In order to facilitate process control and timely adjustment, they are generally installed in the sludge mixed liquid of the front-end biological pool. However, the mainstream nitrate nitrogen instruments in the market currently use ion electrodes or spectroscopy, which have large detection errors in sludge mixed liquids, are far from refined management, and will also lead to excessive addition of carbon sources, resulting in waste of resources. Utility Model Content

[0003] In order to improve the problem of large detection errors in sludge mixed liquor, the present application provides an integrated nitrate nitrogen detection device.

[0004] The integrated nitrate nitrogen detection device provided in this application adopts the following technical solution:

[0005] The integrated nitrate nitrogen detection device comprises: a membrane system, a clean water tank, a detection probe and a backwashing system. The membrane system is immersed in the anoxic zone of the biological pool. The membrane system and the clean water tank are connected through a pump. The detection probe is arranged in the clean water tank. The backwashing system is used to backwash the membrane system.

[0006] In one embodiment, the backwash system comprises a water flushing system, and the water flushing system comprises a backwash water tank and a backwash pump, and the backwash water tank is connected to the membrane system through the backwash pump.

[0007] In one embodiment, the backwash system further includes an air flushing system, which includes a fan and a solenoid valve. The fan is connected to the anoxic zone of the biological pool through a pipeline, the solenoid valve is arranged in the pipeline, and the outlet of the pipeline is arranged below the membrane system.

[0008] In one embodiment, the pipeline is connected to an aeration pipe, the aeration pipe is arranged in the anoxic zone of the biological pond, and the aeration pipe is located upstream of the solenoid valve.

[0009] In one embodiment, water enters from the bottom and exits from the top of the detection probe.

[0010] The integrated nitrate nitrogen detection device provided in the embodiments of the present disclosure can achieve the following technical effects:

[0011] The sludge mixture is filtered into clean water and tested with a detection probe, and the membrane system is backwashed in combination with a backwash system, which helps to improve the accuracy of water quality testing, thereby guiding water quality control, and also helps to avoid excessive addition of resources such as carbon sources, save energy and reduce consumption, and ensure that emissions meet standards.

[0012] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the integrated nitrate nitrogen detection device provided in the embodiment of the present application.

[0014] Explanation of the reference numerals: 1. membrane system; 2. clean water tank; 3. detection probe; 4. water pump; 5. backwash water tank; 6. backwash pump; 7. fan; 8. solenoid valve; 9. pipeline; 10. aeration pipe; 11. control box. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0017] The following is combined with Figure 1 This application is described in further detail.

[0018] The integrated nitrate nitrogen detection device comprises: a membrane system 1, a clean water tank 2, a detection probe 3 and a backwashing system. The membrane system 1 is immersed in the anoxic zone of the biological tank. The membrane system 1 is connected to the clean water tank 2 through a pump 4. The detection probe 3 is arranged in the clean water tank 2. The backwashing system is used to backwash the membrane system 1.

[0019] The membrane system 1 is used to filter the mixed liquid in the anoxic zone of the biological pool. The filtered supernatant is regularly pumped into the clean water pool 2 by the pump 4, and then the supernatant is extracted by the detection probe 3 to detect nitrate nitrogen. The detection probe 3 should be shielded from light during use. In addition, the backwashing system regularly backwashes and cleans the membrane system 1 to prevent the residual nitrate nitrogen in the membrane system 1 from affecting the subsequent detection results.

[0020] Through the above method, the sludge mixture is filtered into clean water and detected by the detection probe 3, and the membrane system 1 is backwashed in combination with the backwashing system, which helps to improve the accuracy of water quality detection, thereby guiding water quality control, and also helps to avoid excessive addition of resources such as carbon sources, save energy and reduce consumption, and ensure that emissions meet standards.

[0021] In one embodiment, the membrane system 1 may be composed of MBR ultrafiltration membrane filaments or flat membranes. The membrane system 1 is fixed by a flexible joint, which is convenient for disassembly, lifting, flushing and replacement.

[0022] In one embodiment, the backwash system includes a water flushing system, which includes a backwashing water tank 5 and a backwashing pump 6 . The backwashing water tank 5 is connected to the membrane system 1 through the backwashing pump 6 .

[0023] In one embodiment, the backwash system also includes an air flushing system, which includes a fan 7 and a solenoid valve 8. The fan 7 is connected to the anoxic zone of the biological pool through a pipeline 9. The solenoid valve 8 is arranged in the pipeline 9, and the outlet of the pipeline 9 is arranged below the membrane system 1.

[0024] In one embodiment, tap water or low-concentration sodium hypochlorite (5% concentration) can be regularly added to the backwash pool 5 as a flushing liquid, and then pumped to the membrane system 1 by the backwash pump 6 to flush the membrane system 1. Backwashing the membrane system 1 by water flushing and air flushing can help prevent the membrane system 1 from being blocked on the one hand, and help prevent the residual nitric nitrogen in the membrane system 1 from affecting the subsequent detection results on the other hand.

[0025] In one embodiment, the pipeline 9 is connected to an aeration pipe 10 , and the aeration pipe 10 is disposed in the anoxic zone of the biological pond. The aeration pipe 10 is located upstream of the solenoid valve 8 .

[0026] In one embodiment, water enters the bottom of the detection probe 3 and exits the top of the detection probe 3, so that the water in the detection probe 3 can be completely discharged and replaced.

[0027] In actual use, the device is provided with a control box 11, and the control box 11 is electrically connected to the detection probe 3, the water pump 4 and the solenoid valve 8 through control lines for controlling the operation of the system.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated nitrate nitrogen detection device, characterized in that: include: A membrane system, a clean water tank, a detection probe and a backwashing system. The membrane system is immersed in the anoxic zone of the biological tank. The membrane system and the clean water tank are connected through a pump. The detection probe is arranged in the clean water tank. The backwashing system is used to backwash the membrane system.

2. The integrated nitrate nitrogen detection device according to claim 1, characterized in that: The backwash system comprises a water flushing system, and the water flushing system comprises a backwash water tank and a backwash pump. The backwash water tank is connected to the membrane system through the backwash pump.

3. The integrated nitrate nitrogen detection device according to claim 2, characterized in that: The backwash system also includes an air flushing system, which includes a fan and a solenoid valve. The fan is connected to the anoxic zone of the biological pool through a pipeline. The solenoid valve is arranged in the pipeline, and the outlet of the pipeline is arranged below the membrane system.

4. The integrated nitrate nitrogen detection device according to claim 3, characterized in that: The pipeline is connected with an aeration pipe, the aeration pipe is arranged in the anoxic zone of the biological pool, and the aeration pipe is located upstream of the solenoid valve.

5. The integrated nitrate nitrogen detection device according to claim 1, characterized in that: The detection probe has water inlet at the bottom and water outlet at the top.

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