Oxidation pond of wastewater treatment system and wastewater treatment system

Abstract

The utility model relates to an oxidation pond of wastewater treatment system and wastewater treatment system.The oxidation pond of wastewater treatment system comprises a pond body, an air supply mechanism and an air pipe assembly, the air supply mechanism is fixedly arranged, and the air supply mechanism is used for supplying air into the pond body; the air pipe assembly is connected with an air outlet of the air supply mechanism, the air pipe assembly is arranged in the pool body, and a plurality of air outlets are formed in the air pipe assembly. When the oxidation pond of the wastewater treatment system works, the air supply mechanism is started, the air supply mechanism generates air, the air generated by the air supply mechanism is guided into the pond body through the air pipe assembly and the air outlet, the air is discharged from the air outlet, and the air force is blown in the pond body so as to achieve the effect of stirring wastewater; the single air supply mechanism is adopted, energy consumption is low, cost is reduced, and the effect of stirring waste water can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking wastewater treatment systems, in particular to an oxidation pond and a wastewater treatment system. Background Art

[0002] Wastewater is generated in paper production, and the wastewater needs to be effectively treated by the wastewater treatment system. The oxidation reaction tank of the wastewater treatment system needs to be stirred to make the oxidation reaction tank fully react. Currently, multiple circulation pumps are used to repeatedly pump wastewater in and out to achieve the stirring effect. The power of one circulation pump is 35kw. Using multiple circulation pumps at the same time results in high energy consumption and high costs. Utility Model Content

[0003] To this end, it is necessary to provide an oxidation pond and a wastewater treatment system for a wastewater treatment system to solve the problem that the current wastewater treatment system uses multiple circulation pumps to repeatedly pump wastewater in and out to achieve a stirring effect, one of which has a power of 35kw, and multiple circulation pumps are used at the same time, resulting in high energy consumption and high cost.

[0004] To achieve the above object, the inventor provides an oxidation pond of a wastewater treatment system, comprising:

[0005] Pool body;

[0006] An air supply mechanism, the air supply mechanism is fixedly arranged and used for supplying air into the pool body;

[0007] The air duct assembly is connected to the air outlet of the air supply mechanism, the air duct assembly is arranged in the pool body, and a plurality of air outlets are arranged on the air duct assembly.

[0008] As a preferred structure of the utility model, the oxidation tank of the wastewater treatment system further comprises a plurality of air outlet pipes, and the plurality of air outlet pipes are respectively connected to the plurality of air outlets.

[0009] As a preferred structure of the utility model, a filter component is provided in the air outlet pipe, and the filter component is used to filter debris in the wastewater.

[0010] As a preferred structure of the utility model, the air duct assembly includes a first air duct and a second air duct;

[0011] The first air duct is arranged in the pool body along the vertical direction, and one end of the first air duct is connected to the air outlet of the air supply mechanism;

[0012] The second air duct is arranged in the pool body along the horizontal direction, the other end of the first air duct is connected to one end of the second air duct, and the other end of the second air duct is sealed;

[0013] The plurality of air outlets are respectively arranged on the second air duct, and the air outlet directions of the plurality of air outlets are all vertically upward.

[0014] As a preferred structure of the utility model, the air duct assembly includes a first air duct, a connecting air duct and a plurality of second air ducts;

[0015] The first air duct is arranged in the pool body along the vertical direction, and one end of the first air duct is connected to the air outlet of the air supply mechanism;

[0016] The connecting air duct is arranged in the pool body along the horizontal direction, and the other end of the first air duct is connected to the connecting air duct;

[0017] A plurality of the second air ducts are respectively arranged in the pool body along a horizontal direction, one end of the plurality of the second air ducts is respectively connected to the connecting air duct, and the other ends of the plurality of the second air ducts are respectively sealed;

[0018] A plurality of the second air ducts are respectively arranged to cross the connecting air duct;

[0019] The plurality of air outlets are respectively arranged on the plurality of the second air ducts, and the air outlet directions of the plurality of air outlets are all vertically upward.

[0020] As a preferred structure of the utility model, the oxidation tank of the wastewater treatment system also includes a fixing mechanism, which is fixedly arranged in the tank body, and the air duct assembly is connected to the fixing mechanism, and the fixing mechanism is used to fix the air duct assembly.

[0021] As a preferred structure of the utility model, the fixing mechanism includes a plurality of clamping pipe clamps, and the plurality of clamping pipe clamps are respectively used to fix the air duct assembly; or

[0022] The fixing mechanism includes a plurality of U-shaped buckles, and the plurality of U-shaped buckles are respectively used to fix the air duct assembly.

[0023] As a preferred structure of the utility model, the oxidation tank of the wastewater treatment system further includes a circulation pump, a first water pipe and a second water pipe;

[0024] One end of the first water pipe is connected to the lower part of the pool body, and the other end of the first water pipe is connected to the water outlet of the circulation pump;

[0025] One end of the second water pipe is connected to the water inlet of the circulation pump, and the other end of the second water pipe is communicated with the upper part of the pool body.

[0026] As a preferred structure of the utility model, the air supply mechanism is a fan.

[0027] Different from the prior art, the beneficial effects of the above technical solution are as follows: the oxidation pool of the wastewater treatment system of the present application includes a pool body, an air supply mechanism and an air duct assembly, the air supply mechanism is fixedly arranged, and the air supply mechanism is used to supply air into the pool body; the air duct assembly is connected to the air outlet of the air supply mechanism, the air duct assembly is arranged in the pool body, and the air duct assembly is provided with a plurality of air outlets. When the oxidation pool of the wastewater treatment system of the present application is in operation, the air supply mechanism is started, the air supply mechanism generates wind, and the wind generated by the air supply mechanism is introduced into the pool body through the air duct assembly and the air outlet, and the wind goes out from the air outlet, and the wind force agitates in the pool body to achieve the effect of stirring the wastewater. Compared with the existing use of multiple circulating pumps at the same time, the present application adopts a single air supply mechanism, which has low energy consumption, reduces costs, and can achieve the effect of stirring the wastewater.

[0028] To achieve the above objectives, the inventors provide a wastewater treatment system, comprising an oxidation pond as described in any one of the wastewater treatment systems provided by the inventors above.

[0029] Different from the prior art, the beneficial effects of the above technical scheme are as follows: in the wastewater treatment system of the present application, when the oxidation tank of the wastewater treatment system is operating, the air supply mechanism is started, the air supply mechanism generates wind, and the wind generated by the air supply mechanism is introduced into the tank body through the air duct assembly and the air outlet. The wind goes out from the air outlet, and the wind force agitates in the tank body to achieve the effect of stirring the wastewater. Compared with the existing use of multiple circulating pumps at the same time, the present application adopts a single air supply mechanism, which has low energy consumption, reduces costs, and can achieve the effect of stirring the wastewater.

[0030] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0032] In the drawings of the specification:

[0033] Figure 1 One of the cross-sectional views of the oxidation tank of the wastewater treatment system according to the specific implementation method;

[0034] Figure 2 One of the top views of the oxidation pond of the wastewater treatment system described in the specific implementation method;

[0035] Figure 3 The second cross-sectional view of the oxidation pond of the wastewater treatment system described in the specific implementation method;

[0036] Figure 4 The second top view of the oxidation pond of the wastewater treatment system described in the specific implementation method;

[0037] Figure 5 The third cross-sectional view of the oxidation tank of the wastewater treatment system described in the specific implementation method;

[0038] Figure 6 This is the third top view of the oxidation pond of the wastewater treatment system described in the specific implementation method.

[0039] The reference numerals in the above drawings are described as follows:

[0040] 1. Pool body,

[0041] 2. Air supply mechanism,

[0042] 3. Duct assembly,

[0043] 31. The first air duct,

[0044] 32. Second air duct,

[0045] 33. Connect the air duct.

[0046] 4. Air outlet,

[0047] 5. Air outlet pipe,

[0048] 51. Filter components,

[0049] 6. Fixed mechanism

[0050] 7. Circulation pump,

[0051] 8. The first water pipe,

[0052] 9. Second water pipe. DETAILED DESCRIPTION

[0053] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0054] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0055] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0056] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0057] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0058] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0059] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0060] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also be indirectly connected to another element "on" or "under" through an intermediate element.

[0061] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0062] See also Figures 1 to 6 , this embodiment relates to an oxidation pond of a wastewater treatment system, comprising:

[0063] The tank body 1 is used to store wastewater and is used as a tank body 1 for wastewater oxidation reaction. The tank body 1 is cylindrical. It should be noted that in this embodiment, the shape of the tank body 1 is not limited. In other embodiments, other shapes such as rectangle can be selected. In other embodiments, the oxidation tank can also be an oxidation tower.

[0064] The air supply mechanism 2 is fixedly arranged. Specifically, in this embodiment, Figure 1 As shown, the air supply mechanism 2 is fixedly arranged on the top of the pool body 1. The air supply mechanism 2 is used to supply air into the pool body 1. The air supply mechanism 2 supplies air into the pool body 1, and the wind force stirs in the pool body 1 to achieve the effect of stirring the wastewater. Specifically, in this embodiment, the air supply mechanism 2 is a blower.

[0065] The air duct assembly 3 is connected to the air outlet 4 of the air supply mechanism 2, and the air duct assembly 3 is arranged in the pool body 1. Figure 1 and Figure 2 As shown, the air duct assembly 3 is provided with a plurality of air outlets 4. The air duct assembly 3 is provided to introduce the air from the air supply mechanism 2 into the pool body 1, and the air goes out from the air outlets 4, and the wind force agitates in the pool body 1 to achieve the effect of stirring the wastewater.

[0066] Specifically, in the oxidation tank of the wastewater treatment system in the present embodiment, when in operation, the air supply mechanism 2 is started, the air supply mechanism 2 generates wind, and the wind generated by the air supply mechanism 2 is introduced into the tank body 1 through the air duct assembly 3 and the air outlet 4. The wind goes out from the air outlet 4, and the wind force is agitated in the tank body 1 to achieve the effect of stirring the wastewater. Compared with the existing simultaneous use of multiple circulation pumps 7, the present embodiment adopts a single air supply mechanism 2, which has low energy consumption, reduces costs, and can achieve the effect of stirring the wastewater.

[0067] Optionally, in some embodiments, such as Figures 3 to 6 As shown, the oxidation pool of the wastewater treatment system further comprises a plurality of air outlet pipes 5, which are detachably connected to the plurality of air outlets 4, respectively, and the detachable connection facilitates future maintenance. The plurality of air outlet pipes 5 facilitate the introduction of the wind generated by the air supply mechanism 2 into the pool body 1, and the wind force agitates in the pool body 1 to achieve the effect of stirring the wastewater.

[0068] Optionally, in some embodiments, such as Figures 3 to 6 As shown, a filter component 51 is provided in the air outlet pipe 5, and the filter component 51 is used to filter the debris in the waste water to prevent the debris in the water from entering the air outlet pipe 5 and clogging the air outlet pipe 5. The filter component 51 can be a filter net.

[0069] Optionally, in some embodiments, such as Figures 1 to 5 As shown, the air duct assembly 3 includes a first air duct 31 and a second air duct 32; the first air duct 31 is vertically arranged in the pool body 1, and one end of the first air duct 31 is connected to the air outlet 4 of the air supply mechanism 2; the second air duct 32 is horizontally arranged in the pool body 1, the other end of the first air duct 31 is connected to one end of the second air duct 32, and the other end of the second air duct 32 is sealed; wherein the first air duct 31 and the second air duct 32 are arranged at right angles; a plurality of the air outlets 4 are respectively arranged on the second air duct 32, and the air outlet directions of the plurality of air outlets 4 are all vertically upward, so as to achieve a better effect of stirring the wastewater. Specifically, in this embodiment, as Figures 1 to 5As shown, during operation, the air supply mechanism 2 is started, and the air supply mechanism 2 generates wind, which is introduced into the pool body 1 through the first air duct 31, the second air duct 32 and the air outlet pipe 5. The wind goes out from the air outlet pipe 5, and the wind force is agitated in the pool body 1 to achieve the effect of stirring the wastewater, so that the oxidation reaction is more complete. Compared with the existing simultaneous use of multiple circulation pumps 7, this embodiment adopts a single air supply mechanism 2, which has low energy consumption, reduces costs, and can achieve the effect of stirring the wastewater.

[0070] Optionally, in some embodiments, such as Figure 6 As shown, the air duct assembly 3 includes a first air duct 31, a connecting air duct 33 and a plurality of second air ducts 32; the first air duct 31 is arranged in the pool body 1 along the vertical direction, and one end of the first air duct 31 is connected to the air outlet 4 of the air supply mechanism 2; the connecting air duct 33 is arranged in the pool body 1 along the horizontal direction, and the other end of the first air duct 31 is connected to the connecting air duct 33; a plurality of second air ducts 32 are respectively arranged in the pool body 1 along the horizontal direction, and one end of a plurality of second air ducts 32 are respectively connected to the connecting air duct 33. By providing a plurality of second air ducts 32, the agitation range of wind force in the pool body 1 is larger, so as to achieve a better stirring effect and a more sufficient oxidation reaction. The other ends of the plurality of second air ducts 32 are sealed respectively; the plurality of second air ducts 32 are respectively arranged to cross with the connecting air duct 33; specifically, the plurality of second air ducts 32 are respectively arranged to cross with the connecting air duct 33 vertically, so as to arrange the second air duct 32 and the connecting pipe; the plurality of air outlets 4 are respectively arranged on the plurality of second air ducts 32, and the air outlet directions of the plurality of air outlets 4 are vertically upward, so as to achieve a better effect of stirring the wastewater. Specifically, in this embodiment, as Figure 6 As shown, during operation, the air supply mechanism 2 is started, and the air supply mechanism 2 generates wind, which is introduced into the pool body 1 through the first air duct 31, the connecting air duct 33, the second air duct 32 and the air outlet duct 5. The wind goes out from the air outlet duct 5, and the wind force agitates in the pool body 1 to achieve the effect of stirring the wastewater, and the oxidation reaction is more sufficient. Compared with the existing multiple circulating pumps 7 used at the same time, this embodiment adopts a single air supply mechanism 2, which has low energy consumption, reduces costs, and can achieve the effect of stirring the wastewater. It should be noted that in this embodiment, the number of the second air duct 32 is not limited. In other embodiments, the second air duct 32 can be two or more than two. It should be noted that the structure of the air duct assembly 3 of this embodiment is not limited to this, and those skilled in the art can select other suitable air duct assemblies 3 according to the teachings of this embodiment.

[0071] Optionally, in some embodiments, such as Figures 1 to 6As shown, the oxidation pool of the wastewater treatment system also includes a fixing mechanism, which is fixedly arranged in the pool body 1, and the air duct assembly 3 is connected to the fixing mechanism, and the fixing mechanism is used to fix the air duct assembly 3, thereby fixing and stabilizing the air duct assembly 3. Specifically, in the present embodiment, the fixing mechanism is a clamp pipe clamp or a U-shaped clip. Specifically, the fixing mechanism includes a plurality of clamp pipe clamps, and the plurality of clamp pipe clamps are respectively used to fix the air duct assembly 3; or in other embodiments, the fixing mechanism includes a plurality of U-shaped clips, and the plurality of U-shaped clips are respectively used to fix the air duct assembly 3. It should be noted that the structure of the fixing mechanism of the present embodiment is not limited thereto, and those skilled in the art may select other suitable fixing mechanisms according to the teachings of the present embodiment.

[0072] Optionally, in some embodiments, such as Figure 5 As shown, the oxidation pool of the wastewater treatment system also includes a circulation pump 7, a first water pipe 8 and a second water pipe 9; one end of the first water pipe 8 is connected to the lower part of the pool body 1, and the other end of the first water pipe 8 is connected to the water outlet of the circulation pump 7; one end of the second water pipe 9 is connected to the water inlet of the circulation pump 7, and the other end of the second water pipe 9 is connected to the upper part of the pool body 1. Specifically, the circulation pump 7 in this embodiment can be used as a backup. When the air supply mechanism 2 or the air duct assembly 3 fails, the circulation pump 7 can be used to operate, and the circulation pump 7 is started to perform the suction and pumping operation, that is, the wastewater in the upper part of the pool body 1 enters the circulation pump 7 through the second water pipe 9, and then the wastewater enters the pool body 1 from the lower part of the pool body 1 through the first water pipe 8 to achieve a stirring effect. Alternatively, in other embodiments, in order to achieve a better stirring effect, the air supply mechanism 2 and the circulation pump 7 can be operated at the same time to make the oxidation reaction more sufficient.

[0073] This embodiment also relates to a wastewater treatment system, including an oxidation pond of the wastewater treatment system as described in any of the above embodiments. Specifically, in this embodiment, Figures 1 to 6 As shown, during operation, the air supply mechanism 2 is started, and the air supply mechanism 2 generates wind, which is introduced into the pool body 1 through the first air duct 31, the connecting air duct 33, the second air duct 32 and the air outlet pipe 5. The wind goes out from the air outlet pipe 5, and the wind force is agitated in the pool body 1 to achieve the effect of stirring the wastewater, so that the oxidation reaction is more complete. Compared with the existing simultaneous use of multiple circulation pumps 7, this embodiment adopts a single air supply mechanism 2, which has low energy consumption, reduces costs, and can achieve the effect of stirring the wastewater.

[0074] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. An oxidation pond of a wastewater treatment system, characterized in that: include: Pool body; An air supply mechanism, the air supply mechanism is fixedly arranged and used for supplying air into the pool body; An air duct assembly, the air duct assembly is connected to the air outlet of the air supply mechanism, the air duct assembly is arranged in the pool body, and the air duct assembly is provided with a plurality of air outlets; Circulation pump; a first water pipe, one end of which is in communication with the lower part of the pool body, and the other end of which is connected to the water outlet of the circulation pump; and a second water pipe; one end of the second water pipe is connected to the water inlet of the circulation pump, and the other end of the second water pipe is communicated with the upper part of the pool body.

2. The oxidation pond of the wastewater treatment system according to claim 1, characterized in that: The oxidation pond of the wastewater treatment system further comprises a plurality of air outlet pipes, and the plurality of air outlet pipes are respectively connected to the plurality of air outlets.

3. The oxidation pond of the wastewater treatment system according to claim 2, characterized in that: A filter component is arranged in the air outlet pipe, and the filter component is used for filtering debris in the wastewater.

4. The oxidation pond of the wastewater treatment system according to any one of claims 1 to 3, characterized in that: The air duct assembly includes a first air duct and a second air duct; The first air duct is arranged in the pool body along the vertical direction, and one end of the first air duct is connected to the air outlet of the air supply mechanism; The second air duct is arranged in the pool body along the horizontal direction, the other end of the first air duct is connected to one end of the second air duct, and the other end of the second air duct is sealed; The plurality of air outlets are respectively arranged on the second air duct, and the air outlet directions of the plurality of air outlets are all vertically upward.

5. The oxidation pond of the wastewater treatment system according to any one of claims 1 to 3, characterized in that: The air duct assembly includes a first air duct, a connecting air duct and a plurality of second air ducts; The first air duct is arranged in the pool body along the vertical direction, and one end of the first air duct is connected to the air outlet of the air supply mechanism; The connecting air duct is arranged in the pool body along the horizontal direction, and the other end of the first air duct is connected to the connecting air duct; A plurality of the second air ducts are respectively arranged in the pool body along a horizontal direction, one end of the plurality of the second air ducts is respectively connected to the connecting air duct, and the other ends of the plurality of the second air ducts are respectively sealed; A plurality of the second air ducts are respectively arranged crosswise with the connecting air duct; The plurality of air outlets are respectively arranged on the plurality of the second air ducts, and the air outlet directions of the plurality of air outlets are all vertically upward.

6. The oxidation pond of the wastewater treatment system according to any one of claims 1 to 3, characterized in that: The oxidation pool of the wastewater treatment system further comprises a fixing mechanism, which is fixedly disposed in the pool body, and the air duct assembly is connected to the fixing mechanism, and the fixing mechanism is used to fix the air duct assembly.

7. The oxidation pond of the wastewater treatment system according to claim 6, characterized in that: The fixing mechanism comprises a plurality of clamping pipe clamps, and the plurality of clamping pipe clamps are respectively used to fix the air duct assembly; or The fixing mechanism includes a plurality of U-shaped buckles, and the plurality of U-shaped buckles are respectively used to fix the air duct assembly.

8. The oxidation pond of the wastewater treatment system according to claim 1, characterized in that: The air supply mechanism is a fan.

9. A wastewater treatment system, characterized in that: An oxidation pond comprising a wastewater treatment system as claimed in any one of claims 1 to 8.

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