Nitrobacteria reaction tank

Abstract

The utility model discloses a nitrifying bacteria reaction tank to solve the problems that a nitrifying reaction device in the prior art is low in applicability, low in heating efficiency and high in energy consumption, and the environment in the device affects the activity of nitrifying bacteria. The device specifically comprises a pool wall, a water outlet cavity formed in the bottom of the pool wall, a filter material assembly fixed to the water outlet cavity and a heating assembly fixed to the filter material assembly, an aeration pipe used for aeration is further fixed to the filter material assembly, and a water inlet pipe used for inputting organic sewage is further arranged on the pool wall; according to the device disclosed by the invention, a heating plate with an equal angular distance in the heating assembly is rotatably arranged in the reaction tank, so that a water body can be uniformly heated, and by rotating the heating assembly, the heating speed is higher, the efficiency is higher, the heating time is shortened, and the energy consumption is effectively reduced; and the annular aeration pipe is matched with the rotatable heating assembly, so that the oxygen content of the water body in the tank can be effectively improved, the activity of nitrifying bacteria is higher, and the nitration reaction is better.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a nitrifying bacteria reaction pool. Background Art

[0002] The nitrifying bacteria reaction tank, also known as the nitrification tank, is a key facility used for nitrification in the biological treatment process. Among them, the main microorganisms of nitrification are nitrifying bacteria, which are a type of autotrophic aerobic microorganisms that can convert ammonia or ammonium salts into nitrites under aerobic conditions, and then oxidize nitrites into nitrates. Through nitrification, the ammonia nitrogen concentration in the water body can be significantly reduced, the effluent water quality can be improved, the risk of eutrophication of the water body can be reduced, and a nitrogen source can be provided for plants and microorganisms in the aquatic ecosystem, which helps to maintain the balance and stability of the ecosystem.

[0003] Since nitrifying bacteria are aerobic microorganisms, they require sufficient dissolved oxygen to support their life activities and nitrification reactions. Furthermore, nitrifying bacteria are very sensitive to temperature changes, with their optimal growth temperature range being 25-30°C. When the temperature drops below 15°C, the nitrification rate decreases significantly. Furthermore, nitrifying bacteria also have certain requirements for pH values, with their optimal pH range being 7.5-8.5. Within this range, nitrifying bacteria have the strongest biological activity and the nitrification process proceeds most rapidly. Therefore, nitrifying bacteria have high requirements for the environmental conditions within the nitrification tank. Therefore, when using a nitrification tank for sewage treatment, the living conditions of nitrifying bacteria should be fully considered.

[0004] For example, a patent with publication number CN202320745283.7 discloses a nitrification reaction device, which includes a reactor, the side wall of the reactor is covered with an insulation layer, and an electric heating mechanism is provided between the insulation layer and the reactor. The water in the reactor is heated by the electric heating mechanism to achieve the desired temperature. Although this device can heat the water, it needs to pass through the asbestos mesh and the side wall of the reactor to transfer heat to the water during heating, which makes the heating efficiency low. In addition, a certain amount of heat is lost during the heat transfer process, which increases the energy consumption of the device. The device is also provided with a cover for heat preservation. Although the cover can keep warm, it is also easy to cause a low oxygen concentration in the reactor, affecting the activity of nitrifying bacteria and thus affecting the effect of the nitrification reaction. In addition, this device is not suitable for nitrification reaction treatment when the temperature is high in summer. It cannot dissipate heat in time, and the high temperature affects the activity of nitrifying bacteria therein. Therefore, a new nitrification reaction device needs to be provided to solve the above problems.

[0005] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0006] In view of at least one of the above technical problems, the present disclosure provides a nitrifying bacteria reaction pool to solve the problems of low applicability, low heating efficiency, high energy consumption and the impact of the environment inside the device on the activity of nitrifying bacteria in the prior art nitrification reaction device.

[0007] According to one aspect of the present disclosure, a nitrifying bacteria reaction tank is provided, comprising a tank wall, a water outlet cavity provided at the bottom of the tank wall, a filter material assembly fixed to the water outlet cavity, and a heating assembly fixed to the filter material assembly. An aeration pipe for aeration is also fixed to the filter material assembly, and an inlet pipe for inputting organic sewage is also provided on the tank wall.

[0008] In some embodiments of the present disclosure, the pool wall includes an outer wall arranged at the outermost layer and an inner wall arranged at the innermost layer. An insulation layer for heat preservation is fixed between the outer wall and the inner wall. A monitoring mechanism for monitoring the environment in the pool is also penetrated on the pool wall.

[0009] In some embodiments of the present disclosure, the heating assembly includes a central axis vertically fixed on the filter material assembly, a heating plate rotatably arranged on the central axis, and a heating power supply fixed on the heating plate. A heating port is also provided on the heating plate, and a heating tube is provided in the heating port. The heating tube passes through the heating plate and is fixedly connected to the heating power supply.

[0010] In some embodiments of the present disclosure, the aeration pipe is a circular structure, specifically including an aeration nozzle provided thereon and a gas source pipeline penetrating the pool wall and connected to the aeration pipe. The gas source pipeline extends to the outside of the reaction pool, and a gas source device for inputting oxygen is also connected to the extended end of the gas source pipeline.

[0011] In some embodiments of the present disclosure, the filter material assembly includes a limiting plate provided thereon for fixing the aeration tube, and a plurality of inner filter ports and outer filter ports are respectively provided at the center and the periphery of the filter material assembly.

[0012] In some embodiments of the present disclosure, the limiting plate is further provided with a plurality of limiting plate openings for the flow of organic wastewater.

[0013] In some embodiments of the present disclosure, the water outlet chamber includes a water outlet pipe that is fixed on the pool wall, and the water outlet pipe is connected to the outside of the reaction pool.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0015] 1. The device of the present application adopts heating plates with equal angular spacing and is rotatably arranged in the reaction tank. It can not only directly and evenly heat the sewage in the tank, but also make the heating speed faster and more efficient by rotating the heating components, and shorten the heating time, effectively reducing energy consumption.

[0016] 2. The device of the present application adopts an annular aeration tube in combination with a rotatable heating component, which can better and more evenly increase the oxygen content of the water in the pool. Adequate dissolved oxygen can make the nitrifying bacteria more active, thereby making the nitrification reaction better.

[0017] 3. When the temperature is low in winter, the device of the present application can use the heating component and the insulation layer to maintain the temperature of the water in the pool within a certain range. When the temperature is high in summer, the water can be stirred by rotating the heating component to increase heat dissipation. Therefore, the device of the present application can be applied to various climates, making the device highly applicable.

[0018] 4. The device of the present application is also provided with a filter material assembly and a filter material layer laid thereon. The filter material provides an attachment area that is conducive to the growth of nitrifying bacteria. The large-scale attachment and growth of nitrifying bacteria can make the nitrification reaction better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the nitrifying bacteria reaction pool in the utility model;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the middle part A;

[0021] Figure 3 It is a top view of the nitrifying bacteria reaction pool in the utility model;

[0022] Figure 4 It is a cross-sectional view of the nitrifying bacteria reaction tank in the utility model;

[0023] Figure 5 It is a partial cross-sectional view of the nitrifying bacteria reaction tank in the utility model.

[0024] In the above figures, 1. pool wall; 11. outer wall; 12. insulation layer; 13. inner wall; 14. water inlet pipe; 15. monitoring mechanism; 2. heating component; 21. central axis; 22. heating plate; 23. heating port; 24. heating pipe; 25. heating power supply; 3. aeration pipe; 31. aeration nozzle; 32. air source equipment; 33. air source pipeline; 4. filter material assembly; 41. inner filter port; 42. outer filter port; 43. limit plate; 431. limit plate port; 5. water outlet chamber; 51. water outlet pipe. DETAILED DESCRIPTION

[0025] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. The "first", "second", etc. involved in this application are used to distinguish the objects being described and do not have any order or technical meaning. The "connection" and "connection" involved in this application, unless otherwise specified, include direct and indirect connections (connections).

[0026] The embodiment of the present application solves the problems of low applicability, low heating efficiency, high energy consumption and the influence of the environment inside the device on the activity of nitrifying bacteria in the prior art nitrification reaction device by providing a nitrification reaction pool. In order to better understand the technical solution of the present application, the above technical solution will be described in detail below in conjunction with the drawings in the specification and specific implementation methods.

[0027] This example discloses a nitrifying bacteria reaction pool, see Figures 1 to 5 The device specifically includes a pool wall 1, a water outlet cavity 5 provided at the bottom of the pool wall 1, a filter material assembly 4 fixed on the water outlet cavity 5, and a heating assembly 2 fixed on the filter material assembly 4. An aeration pipe 3 for aeration is also fixed on the filter material assembly 4. The pool wall 1 is also provided with an inlet pipe 14 for inputting organic sewage.

[0028] The pool wall 1 includes an outer wall 11 arranged at the outermost layer and an inner wall 13 arranged at the innermost layer. An insulation layer 12 for heat preservation is fixed between the outer wall 11 and the inner wall 13. A monitoring mechanism 15 for monitoring the environment in the pool is also penetrated on the pool wall 1. The monitoring mechanism 15 can monitor the temperature, dissolved oxygen content and pH value of the water body.

[0029] The heating assembly 2 includes a central axis 21 vertically fixed on the filter material assembly 4, a heating plate 22 rotatably arranged on the central axis 21, and a heating power supply 25 fixed on the heating plate 22. A heating port 23 is also provided on the heating plate 22, and a heating tube 24 is provided in the heating port 23. The heating tube 24 passes through the heating plate 22 and is fixedly connected to the heating power supply 25.

[0030] The aeration pipe 3 is a circular structure, specifically including an aeration nozzle 31 provided thereon and a gas source pipeline 33 penetrating the pool wall 1 and connected to the aeration pipe 3. The gas source pipeline 33 extends outside the reaction pool, and a gas source device 32 for inputting oxygen is also connected to the extended end of the gas source pipeline 33.

[0031] The filter assembly 4 includes a retaining plate 43 mounted thereon to secure the aeration tube 3. Multiple inner filter ports 41 and outer filter ports 42 are defined at the center and periphery of the filter assembly 4. The retaining plate 43 also includes multiple retaining plate openings 431 for the flow of organic wastewater.

[0032] The water outlet chamber 5 includes a water outlet pipe 51 that is fixed on the pool wall 1 and is connected to the outside of the reaction pool.

[0033] When the device of the present application is implemented, organic sewage flows into the pool through the water inlet pipe 14. A layer of filler such as ceramsite and volcanic rock, which is used to provide an attachment area for the growth of nitrifying bacteria, is evenly laid between the limiting plate 43 and the inner wall 13 of the filter material component 4 and on the inner plane surrounded by the limiting plate 43. The nitrifying bacteria attached to the filler act on the ammonia nitrogen in the sewage, causing it to fully react and convert into nitrate and nitrite. During this period, the staff adjusts the water environment in the pool through the data monitored by the monitoring mechanism 15. When the water temperature is too low, the water is evenly heated by turning on the heating tube 24 in the heating assembly 2. While heating, the heating assembly 2 can be rotated to speed up the heating of the water, making the heating faster and more efficient, shortening the heating time, and effectively reducing energy consumption. When the temperature is too high, the water can be stirred by rotating the heating assembly 2 to speed up the heat dissipation. In order to increase the dissolved oxygen content in the water to ensure the activity of nitrifying bacteria, the staff can turn on the air source equipment 32 to blow oxygen into the aeration pipe 3 and blow it out through the aeration nozzle 31 to achieve the purpose of increasing the dissolved oxygen content in the water. In this process, the rotating heating assembly 2 and the aeration pipe 3 are more conducive to quickly and evenly increasing the dissolved oxygen content in the water, so that the nitrification reaction is better. Finally, the fully reacted sewage flows into the outlet cavity 5 through the filter material and the inner filter port 41 and the outer filter port 42 in the filter material assembly 4, and flows into the next stage of denitrification through the outlet pipe 51 for denitrification. In the nitrification reaction stage, the nitrogen pollution in the sewage is converted from ammonia nitrogen to nitrite and nitrate under the action of nitrifying bacteria. Among them, ensuring the maintenance of nitrifying bacteria activity is a prerequisite for a sufficient and efficient nitrification reaction. The device of the present application ensures the efficient progress of the nitrification reaction by controlling the temperature and dissolved oxygen content that most affect the activity of nitrifying bacteria. When the pH value of the water in the pool is too high or too low, it is only necessary to add the corresponding liquid medicine into the pool for adjustment. It should be noted that the gas source equipment 32 and the monitoring mechanism 15 for monitoring the water temperature and dissolved oxygen content in the device of the present application are both existing technologies, and the specific working principles will not be repeated in this technical solution.

[0034] Although some preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0035] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A nitrifying bacteria reaction pool, comprising a pool wall (1), characterized in that: The invention also comprises a water outlet cavity (5) provided at the bottom of the pool wall (1), a filter material assembly (4) fixed on the water outlet cavity (5), and a heating assembly (2) fixed on the filter material assembly (4); an aeration pipe (3) for aeration is also fixed on the filter material assembly (4); and an inlet pipe (14) for inputting organic sewage is also provided on the pool wall (1).

2. The nitrifying bacteria reaction pool according to claim 1, characterized in that The pool wall (1) comprises an outer wall (11) provided at the outermost layer and an inner wall (13) provided at the innermost layer; a heat-insulating layer (12) for heat preservation is fixed between the outer wall (11) and the inner wall (13); and a monitoring mechanism (15) for monitoring the environment in the pool is also provided on the pool wall (1).

3. The nitrifying bacteria reaction pool according to claim 2, wherein The heating assembly (2) comprises a central shaft (21) vertically fixed on the filter material assembly (4), a heating plate (22) rotatably arranged on the central shaft (21), and a heating power source (25) fixed on the heating plate (22). A heating port (23) is also provided on the heating plate (22), a heating pipe (24) is provided in the heating port (23), and the heating pipe (24) passes through the heating plate (22) and is fixedly connected to the heating power source (25).

4. The nitrifying bacteria reaction pool according to claim 3, characterized in that The aeration pipe (3) is a circular ring structure, specifically comprising an aeration nozzle (31) provided thereon and an air source pipeline (33) penetrating the tank wall (1) and communicating with the aeration pipe (3). The air source pipeline (33) extends outside the reaction tank, and an air source device (32) for inputting oxygen is further connected to the extended end of the air source pipeline (33).

5. The nitrifying bacteria reaction pool according to claim 4, characterized in that: The filter material assembly (4) includes a limiting plate (43) arranged thereon for fixing the aeration tube (3), and a plurality of inner filter ports (41) and outer filter ports (42) are respectively provided at the center and peripheral positions of the filter material assembly (4).

6. The nitrifying bacteria reaction pool according to claim 5, characterized in that The limiting plate (43) is also provided with a plurality of limiting plate openings (431) for the flow of organic sewage.

7. The nitrifying bacteria reaction pool according to claim 6, characterized in that: The water outlet chamber (5) comprises a water outlet pipe (51) which is fixed on the pool wall (1) through the water outlet pipe (51), and the water outlet pipe (51) is in communication with the outside of the reaction pool.

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