Novel NCOBR coupling device

Abstract

The utility model discloses a novel NCOBR coupling device which comprises catalytic ozonation equipment, an ozone generator is arranged on one side of the catalytic ozonation equipment, a water outlet pipeline is connected to gas-water mixing equipment, and the output end of the gas-water mixing equipment is connected to the bottom of an internal circulation biological aerated filter; comprising a backwashing system, the backwashing system comprises a backwashing air pipeline and a backwashing water pipeline, and the backwashing air pipeline and the backwashing water pipeline are both connected to the ozone catalytic oxidation equipment and the internal circulation biological aerated filter. According to the utility model, ozone is effectively utilized to catalytically oxidize effluent residual oxygen, the oxygen content required by the growth of BAF microorganisms is ensured under the condition of no aeration, effective degradation of COD is realized, and the effluent residual oxygen of the ozone reactor is directly utilized by optimizing the communication mode of the ozone reactor and the BAF, so that the energy waste is reduced, the residual ozone is utilized to supply oxygen, and the energy consumption is reduced. And an oxygen supply mode of traditional BAF aeration is cancelled, so that the investment cost and the operation cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment devices, in particular to a novel NCOBR coupling device. Background Art

[0002] The COBR treatment process (a combined process of catalytic ozone oxidation and internal-circulating biological aerated filter, hereinafter referred to as COBR) leverages the advantages of advanced oxidation and biochemical processes, creating complementary advantages. The catalytic ozone oxidation process uses low-dose ozone to rapidly oxidize or modify difficult-to-biodegrade organic matter, breaking down large molecules into small ones through ring-opening and chain-scission, thereby reducing COD while improving the biodegradability of the wastewater. The internal-circulating BAF process adapts to oligotrophic wastewater and maintains high biological activity, effectively degrading biodegradable pollutants in the water. Multi-media filtration improves the removal of suspended solids while reducing the workload of subsequent process stages.

[0003] With the rapid growth of population and urbanization, sewage treatment has become an increasingly important field. Among the existing sewage treatment methods, COBR technology has become an efficient and reliable sewage treatment technology. Although the COBR process has high treatment efficiency, fast treatment speed and low chemical usage, it has some drawbacks:

[0004] The residual ozone in the effluent from ozone catalytic oxidation is not effectively utilized;

[0005] Traditional internal circulation BAF requires an aeration system, which consumes high energy;

[0006] The system investment and operating costs are high. Utility Model Content

[0007] The technical problem to be solved by the present invention is to provide a novel NCOBR coupling device, which effectively utilizes the residual oxygen in the effluent through ozone catalytic oxidation, ensures the oxygen content required for the growth of BAF microorganisms without aeration, and realizes the effective degradation of COD. Moreover, by optimizing the communication mode between the ozone reactor and the BAF, the residual oxygen in the effluent of the ozone reactor is directly utilized, thereby reducing energy waste, utilizing the residual ozone for oxygen supply, eliminating the traditional BAF aeration oxygen supply mode, and reducing investment cost and operation cost.

[0008] In order to solve the above technical problems, the utility model provides a new NCOBR coupling device, including an ozone catalytic oxidation device, an ozone generator is provided on one side of the ozone catalytic oxidation device, and an outlet pipe is connected to an air-water mixing device, and the output end of the air-water mixing device is connected to the bottom of an internal circulation aerated biological filter; it includes a backwash system, and the backwash system includes a backwash air pipe and a backwash water pipe, and the backwash air pipe and the backwash water pipe are both connected to the ozone catalytic oxidation device and the internal circulation aerated biological filter.

[0009] Furthermore, a water inlet pipe is provided on one side of the ozone catalytic oxidation equipment, and a water inlet pump is provided on the water inlet pipe.

[0010] Furthermore, the gas-water mixing equipment is provided with a stirring device.

[0011] Furthermore, a backwash fan is provided on the backwash air duct.

[0012] Furthermore, a backwash water pump is provided on the backwash water pipeline.

[0013] The beneficial effects of the utility model are: (1) the ozone is effectively used to catalyze the oxidation of residual oxygen in the effluent, thus reducing energy waste;

[0014] (2) The BAF aeration system is eliminated, reducing investment and operating costs;

[0015] (3) It is simple to operate, has significant effects, and is suitable for various sewage treatment fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Explanation of the numbers in the figure: 1. Ozone catalytic oxidation equipment; 2. Ozone generator; 3. Air-water mixing equipment; 4. Internal circulation aerated biological filter; 5. Backwash air duct; 6. Backwash water duct; 7. Water inlet duct; 8. Water inlet pump; 9. Stirring device; 10. Backwash fan; 11. Backwash water pump. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore should not be understood as a limitation to the present invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0021] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0024] Reference Figure 1 As shown, an embodiment of a novel NCOBR coupling device of the present invention includes an ozone catalytic oxidation device 1, an ozone generator 2 is provided on one side of the ozone catalytic oxidation device 1, and a water outlet pipe is connected to a gas-water mixing device 3, and the output end of the gas-water mixing device 3 is connected to the bottom of an internal circulation aerated biological filter 4; it includes a backwash system, and the backwash system includes a backwash air pipe 5 and a backwash water pipe 6, and the backwash air pipe 5 and the backwash water pipe 6 are both connected to the ozone catalytic oxidation device 1 and the internal circulation aerated biological filter 4.

[0025] A water inlet pipe 7 is provided on one side of the ozone catalytic oxidation equipment 1, and a water inlet pump 8 is provided on the water inlet pipe 7; a stirring device 9 is provided on the air-water mixing device 3; a backwash fan 10 is provided on the backwash air pipe 5; and a backwash water pump 11 is provided on the backwash water pipe 6, which is used for automatic backwashing of the ozone catalytic oxidation equipment 1 and the internal circulation aerated biological filter 4.

[0026] During use, after the wastewater is treated by the ozone catalytic oxidation equipment 1, it enters the gas-water mixing equipment 3 for ozone decomposition. After a period of time in the gas-water mixing equipment 3, the unused ozone contained in the ozone catalytic oxidation effluent will decompose to produce oxygen and mix with the wastewater, thereby increasing the dissolved oxygen in the influent. When entering the internal circulation aerated biological filter 4, it provides sufficient oxygen content for microorganisms, thereby completing the removal of pollutants in the sewage.

[0027] This device effectively utilizes ozone to catalytically oxidize excess oxygen in the effluent. Without aeration, it ensures the oxygen content required for microbial growth in the internal circulation aerated biological filter 4, achieving effective COD degradation. By optimizing the connection between the ozone reactor and the BAF, the excess oxygen in the effluent of the ozone reactor can be directly utilized, thus reducing energy waste.

[0028] By using residual ozone for oxygen supply, the traditional BAF aeration oxygen supply method is eliminated, thus reducing investment and operating costs.

[0029] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A new NCOBR coupling device, characterized in that: The invention comprises an ozone catalytic oxidation device (1), wherein an ozone generator (2) is provided on one side of the ozone catalytic oxidation device (1), and a water outlet pipe is connected to an air-water mixing device (3), and the output end of the air-water mixing device (3) is connected to the bottom of an internal circulation aerated biological filter (4); The backwash system comprises a backwash air duct (5) and a backwash water duct (6), and the backwash air duct (5) and the backwash water duct (6) are both connected to the ozone catalytic oxidation equipment (1) and the internal circulation aerated biological filter (4).

2. The novel NCOBR coupling device according to claim 1, characterized in that: A water inlet pipe (7) is provided on one side of the ozone catalytic oxidation device (1), and a water inlet pump (8) is provided on the water inlet pipe (7).

3. The novel NCOBR coupling device according to claim 1, characterized in that: The gas-water mixing device (3) is provided with a stirring device (9).

4. The novel NCOBR coupling device according to claim 1, characterized in that: A backwash fan (10) is provided on the backwash air duct (5).

5. The novel NCOBR coupling device according to claim 1, characterized in that: A backwash water pump (11) is provided on the backwash water pipeline (6).

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