Efficient denitrification sewage treatment device based on parameter regulation and enrichment of nitrifying bacteria

Abstract

The utility model discloses a kind of efficient denitrification sewage treatment devices based on parameter regulation and control enrichment nitrifying bacteria, comprising: the digestion tank with certain digestion bacteria's mud source, and the digestion tank is cylindrical structure, the digestion tank has aeration device for feeding in, the aeration device includes: aeration disc and gas supply pipe, the aeration disc is coaxially installed at the bottom of the digestion tank, and the aeration disc has air cavity inside, the top of the aeration disc is the arc surface structure of outer convex, and the top of the aeration disc has several gas nozzles with the air cavity communication.The utility model sets up several gas nozzles on the top of aeration disc, supplies oxygen using several gas nozzles, feeding is uniform, improves the reproduction efficiency of digestion bacteria, at the same time, the top of aeration disc uses the arc surface structure of outer convex, can avoid mud source accumulation the top end surface of aeration disc, cause the phenomenon of plugging gas nozzle.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to a high-efficiency denitrification wastewater treatment device based on parameter regulation to enrich nitrifying bacteria. Background Technology

[0002] Most current wastewater treatment plants use the traditional activated sludge process to treat nitrogen-containing wastewater. This method relies on the microbial community naturally present in the wastewater to oxidize ammonia nitrogen and convert nitrite to nitrate. However, this method has problems such as low efficiency, long reaction time, sensitivity to environmental conditions, and difficulty in maintaining a stable high concentration of nitrifying bacteria.

[0003] To solve the above problems, it is generally necessary to manually adjust the oxygen content, pH value and temperature in the digester to create the optimal reproductive environment for digestive bacteria, thereby achieving the goal of rapid denitrification of wastewater. However, existing methods for adjusting oxygen content often result in uneven nutrient supply, which affects the reproductive efficiency of digestive bacteria. Utility Model Content

[0004] To address the aforementioned problems with existing oxygen content regulation in digesters, this paper aims to provide a highly efficient denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria.

[0005] The specific technical solution is as follows:

[0006] A high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria includes: a digester containing a sludge source with a certain amount of digesting bacteria, wherein the digester has a cylindrical structure, and the digester contains an aeration device for nutrient supply, the aeration device comprising:

[0007] An aeration disc is coaxially installed at the bottom of the digester, and the aeration disc has an air cavity inside. The top of the aeration disc has an outwardly convex arc surface structure, and the top of the aeration disc has several air nozzles that communicate with the air cavity.

[0008] An air supply pipe is provided, one end of which is connected to the aeration disc and communicates with the air chamber, and the other end of which extends out of the digestion tank and is connected to an air pump.

[0009] As a further improvement and optimization of this solution, a dissolved oxygen meter is installed on the top of the digester.

[0010] As a further improvement and optimization of this solution, a thermometer is installed on the top of the digestion tank.

[0011] As a further improvement and optimization of this solution, a pH meter is installed on the top of the digester.

[0012] As a further improvement and optimization of this solution, an alkali dosing device is also installed on the top of the digester to add alkaline solvent to the digester in order to adjust the pH value of the digester.

[0013] As a further improvement and optimization of this solution, the alkali dosing device includes a solvent tank for storing alkaline solvents. The solvent tank is connected to the digestion tank through a solvent addition pipe, and a first valve is installed on the solvent addition pipe.

[0014] As a further improvement and optimization of this solution, a raw water inlet pipe is installed on the side wall of the digester, and a second valve is installed on the raw water inlet pipe.

[0015] As a further improvement and optimization of this solution, an outlet pipe is also installed on the side wall of the digester, the outlet pipe has a third valve, and the outlet pipe is used to connect to the sedimentation tank.

[0016] As a further improvement and optimization of this solution, the bottom of the aeration disc is connected to the bottom of the digester via a bracket.

[0017] As a further improvement and optimization of this solution, the diameter of the aeration disc is slightly smaller than the inner diameter of the digester.

[0018] The positive effects of the above technical solution compared with the existing technology are:

[0019] In this invention, several air nozzles are set on the top of the aeration disc to supply oxygen evenly, thereby improving the reproduction efficiency of digestive bacteria. At the same time, the top of the aeration disc adopts an outward convex arc surface structure, which can prevent mud from accumulating on the top end face of the aeration disc and causing blockage of the air nozzles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the digester of a high-efficiency denitrification wastewater treatment device based on parameter control and enrichment of nitrifying bacteria according to this utility model.

[0021] Figure 2 This is a top view of the digester of a high-efficiency denitrification wastewater treatment device based on parameter control and enrichment of nitrifying bacteria according to this utility model.

[0022] In the attached diagram: 1. Digester; 2. Aeration device; 3. Dissolved oxygen meter; 4. Thermometer; 5. Alkali dosing device; 6. Raw water inlet pipe; 7. Second valve; 8. Outlet pipe; 9. Third valve; 10. pH meter; 21. Aeration disc; 22. Air nozzle; 23. Air supply pipe; 24. Air pump; 51. Solvent addition pipe; 52. First valve; 53. Solvent tank. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Figure 1 This is a schematic diagram of the digester structure of a high-efficiency denitrification wastewater treatment device based on parameter control and enrichment of nitrifying bacteria according to this utility model. Figure 2 This is a top view of the digester of a high-efficiency denitrification wastewater treatment device based on parameter control and enrichment of nitrifying bacteria, as described in this utility model. Figure 1-2 The diagram illustrates a preferred embodiment of a high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria. The device includes a digester 1 containing sludge with a certain amount of digesting bacteria. The digester 1 has a cylindrical structure. An aeration device 2 for supplying nutrients is provided within the digester 1. The aeration device 2 includes an aeration disc 21 and an air supply pipe 23. The aeration disc 21 is coaxially mounted at the bottom of the digester 1 and has an air chamber inside. The top of the aeration disc 21 has a convex arc-shaped structure, and the top of the aeration disc 21 has several air nozzles 22 communicating with the air chamber. One end of the air supply pipe 23 is connected to the aeration disc 21 and communicates with the air chamber. The other end of the air supply pipe 23 extends out of the digester 1 and is connected to an air pump 24.

[0027] In this embodiment, when supplying oxygen to the digester 1, the air pump 24 operates and the air supply pipe 23 supplies oxygen to the air chamber of the aeration disc 21. The oxygen flows upward from the bottom of the digester 1 through several air nozzles 22. During this process, it mixes with the water in the digester 1, thereby adjusting the oxygen content in the digester 1.

[0028] In this embodiment, several air nozzles 22 are set on the top of the aeration disc 21 to supply oxygen evenly, thereby improving the reproduction efficiency of digestive bacteria. At the same time, the top of the aeration disc 21 adopts an outward convex arc surface structure, which can prevent mud from accumulating on the top end face of the aeration disc 21 and causing blockage of the air nozzles 22.

[0029] Furthermore, as a preferred embodiment, a dissolved oxygen meter 3 is installed on the top of the digester 1 to measure the oxygen content inside the digester 1.

[0030] Furthermore, as a preferred embodiment, a thermometer 4 is installed on the top of the digester 1 to measure the temperature inside the digester 1.

[0031] Furthermore, as a preferred embodiment, a pH meter 10 is installed on the top of the digester 1 to measure the pH value inside the digester 1.

[0032] Furthermore, as a preferred embodiment, an alkaline dosing device 5 is also installed on the top of the digester 1 for adding alkaline solvent to the digester 1 to adjust the pH value in the digester 1.

[0033] Furthermore, as a preferred embodiment, the alkali dosing device 5 includes a solvent tank 53 for storing alkaline solvents. The solvent tank 53 is connected to the digester 1 via a solvent addition pipe 51, and a first valve 52 is installed on the solvent addition pipe 51.

[0034] Furthermore, as a preferred embodiment, a raw water inlet pipe 6 is installed on the side wall of the digester 1, and a second valve 7 is installed on the raw water inlet pipe 6.

[0035] Furthermore, as a preferred embodiment, an outlet pipe 8 is also installed on the side wall of the digester 1. The outlet pipe 8 has a third valve 9 and is used to connect to the sedimentation tank.

[0036] Even better, the first valve 52, the second valve 7, and the third valve 9 are all electric valves.

[0037] Furthermore, as a preferred embodiment, the bottom of the aeration disc 21 is connected to the bottom of the digester 1 via a support.

[0038] Furthermore, as a preferred embodiment, the diameter of the aeration disc 21 is slightly smaller than the inner diameter of the digester 1.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria, characterized in that, include: A digester containing sludge with a certain amount of digestive bacteria, wherein the digester has a cylindrical structure and an aeration device for supplying nutrients is provided within the digester. The aeration device includes: An aeration disc is coaxially installed at the bottom of the digester, and the aeration disc has an air cavity inside. The top of the aeration disc has an outwardly convex arc surface structure, and the top of the aeration disc has several air nozzles that communicate with the air cavity. An air supply pipe is provided, one end of which is connected to the aeration disc and communicates with the air chamber, and the other end of which extends out of the digestion tank and is connected to an air pump.

2. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 1, characterized in that, A dissolved oxygen meter is installed on the top of the digester.

3. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 1, characterized in that, A thermometer is installed on the top of the digester.

4. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 1, characterized in that, A pH meter is installed on the top of the digester.

5. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 4, characterized in that, The top of the digester is also equipped with an alkali dosing device for adding alkaline solvents to the digester to adjust the pH value.

6. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 5, characterized in that, The alkaline dosing device includes a solvent tank for storing alkaline solvents. The solvent tank is connected to the digestion tank via a solvent addition pipe, and a first valve is installed on the solvent addition pipe.

7. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 1, characterized in that, The digester is equipped with a raw water inlet pipe on its side wall, and a second valve is installed on the raw water inlet pipe.

8. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 7, characterized in that, An outlet pipe is also installed on the side wall of the digester. The outlet pipe has a third valve and is used to connect to the sedimentation tank.

9. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 1, characterized in that, The bottom of the aeration disc is connected to the bottom of the digester via a support.

10. The high-efficiency denitrification wastewater treatment device based on parameter-controlled enrichment of nitrifying bacteria according to claim 1, characterized in that, The diameter of the aeration disc is slightly smaller than the inner diameter of the digester.

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