A sewage treatment device and method with one-way power water outlet

Abstract

The present invention provides a sewage treatment device with one-way power water outlet, comprising: a sewage treatment unit and an air source, wherein the sewage treatment unit comprises: a first treatment area and a second treatment area, wherein the first treatment area is respectively connected to the second treatment area and a sewage pipe; the second treatment area is connected to the outside; and the air source is connected to the second treatment area. The present invention effectively avoids the technical defects of the structural design in the technology that the sewage input from the first treatment area directly enters the sewage pipe for output, which easily causes serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive treatment pressure and wastes resources, and can achieve the technical effect of regulating and storing sewage when sewage discharge is not required, and has the characteristics of simple structure, convenient operation and wide applicability.

Description

Technical Field

[0001] The invention belongs to the technical field of drainage, and in particular relates to a sewage treatment device and method with unidirectional power water outlet. Background Art

[0002] The urban pipe network is divided into a combined sewer system and a separate sewer system, which are used to discharge sewage (such as domestic sewage) within the unit area. In the existing discharge process, the sewage in the unit area is first transported to the septic tank through the sewage branch pipe for collection and chemical treatment (such as chemical decomposition in the septic tank), so that the treated upper layer liquid flows into the municipal pipeline through the sewage pipe for subsequent treatment.

[0003] However, this discharge method means that when sewage is discharged, the sewage output from the septic tank directly enters the sewage pipe and mixes with rainwater. If the mixed water of rainwater and sewage is discharged directly into natural water bodies on rainy days, it is very easy to cause serious pollution to the receiving water bodies. If it is discharged directly into sewage treatment facilities for treatment, a large amount of relatively clean rainwater on rainy days will enter the sewage treatment facilities for unnecessary treatment, resulting in a waste of resources.

[0004] It can be seen from this that the structural design in the prior art for directly outputting sewage from a septic tank into a sewage pipe has technical defects such as being very likely to cause serious pollution of natural water bodies on rainy days, or excessive pressure on sewage treatment facilities and waste of resources. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the structural design in the prior art for directly outputting sewage from a septic tank into a sewage pipe has technical defects such as being very likely to cause serious pollution of natural water bodies on rainy days, or excessive pressure on sewage treatment facilities and waste of resources.

[0006] In order to solve the above technical problems, the present invention provides a sewage treatment device with one-way power water outlet, the device comprising:

[0007] sewage treatment units and air sources;

[0008] The sewage treatment unit includes: a first treatment area and a second treatment area, the first treatment area is respectively connected with the second treatment area and a sewage pipe, and a first switch is arranged on the sewage pipe; the second treatment area is connected with the outside; the air source is connected with the second treatment area; when water enters the second treatment area, the first switch is in a closed state, and the sewage in the first treatment area flows into the second treatment area under the action of gravity; when water is discharged from the second treatment area, the first switch is in an open state, and air is filled into the second treatment area by the air source, so that the sewage in the second treatment area is discharged to the first treatment area under the action of air pressure, and discharged from the sewage pipe.

[0009] Optionally, the first processing area includes:

[0010] a gravity port, communicating with the second processing area;

[0011] A sewage outlet is connected to the sewage pipe, and the bottom elevation of the sewage outlet is higher than the top elevation of the gravity outlet; a first switch is arranged at the sewage outlet;

[0012] The device also includes:

[0013] A conducting pipe is arranged in the first processing area, and the conducting pipe includes a first conducting port and a second conducting port; the conducting pipe is connected to the gravity port through the second conducting port; and the pipe mouth elevation of the first conducting port is higher than the bottom elevation of the sewage outlet.

[0014] Optionally, the first processing area includes:

[0015] a gravity port, communicating with the second processing area;

[0016] A sewage outlet is connected to the sewage pipe, and the bottom elevation of the sewage outlet is higher than the top elevation of the gravity outlet; a first switch is arranged at the sewage outlet;

[0017] The device also includes:

[0018] A conduction pipe is arranged in the first processing area, and the conduction pipe includes a first conduction port and a second conduction port; the conduction pipe is connected to the gravity port through the second conduction port; and a second switch is arranged at the gravity port.

[0019] Optionally, the first processing area is provided with a sewage outlet, the sewage outlet is connected to the sewage pipe, and a first switch is provided at the sewage outlet;

[0020] The device also includes: a conducting pipe, which is arranged in the second processing area; the conducting pipe includes a first conducting port and a second conducting port; the conducting pipe is connected to the first processing area through the first conducting port; the pipe mouth elevation of the first conducting port is higher than the bottom elevation of the sewage outlet; the second conducting port is located at the bottom of the second processing area.

[0021] Optionally, the first processing area includes:

[0022] a gravity port, communicating with the second processing area;

[0023] A sewage outlet is connected to the sewage pipe, and the bottom elevation of the sewage outlet is higher than the top elevation of the gravity outlet;

[0024] The first switch is arranged at the sewage outlet;

[0025] A second switch is arranged at the gravity port.

[0026] Optionally, also include:

[0027] an exhaust pipe opened in the second processing area;

[0028] A first valve is provided at the exhaust pipe to connect the gas source and the second processing area;

[0029] A second valve is arranged at the exhaust pipe to connect the second processing area with the external atmospheric pressure.

[0030] Optionally, the first treatment area is a septic tank; the second treatment area is one of a regulating tank, a box culvert, and a pipe culvert; the first treatment area and the second treatment area constitute two independent areas of the sewage treatment unit.

[0031] Optionally, a plurality of partitions are provided in the first processing area to divide the first processing area into a plurality of processing sub-areas, and at least one water through hole is provided on each of the partitions.

[0032] Optionally, the first switch is an airbag that can be inflated or deflated;

[0033] The sewage outlet is a bent inlet, the opening direction of the bent inlet is toward the bottom direction of the first processing area, and an elastic area is arranged in the bent inlet. The airbag is arranged in the elastic area and fills the elastic area when the airbag is fully inflated; the opening direction of the sewage outlet is toward the bottom direction of the first processing area.

[0034] In another aspect, the present invention further provides a sewage treatment method with one-way power water outlet, which is applied to any of the above-mentioned devices, and the method comprises:

[0035] receiving an identification instruction of whether the second processing area needs to discharge water;

[0036] If yes, control the first switch to be turned on, the first valve to be opened and the second valve to be closed, so as to fill the second processing area with air;

[0037] The air squeezes the sewage in the second treatment area to flow into the first treatment area and is discharged from the sewage pipe;

[0038] receiving an identification instruction of whether the second processing area needs water storage;

[0039] If so, control the first switch to be closed and opened, the first valve to be closed, and the second valve to be opened; the sewage in the first treatment area flows into the second treatment area under the action of gravity.

[0040] Beneficial effects:

[0041] The sewage treatment device provided by the present invention, when it is necessary to separate sewage and rainwater on rainy days, the sewage output from the first treatment area flows into the second treatment area for storage under the action of its own gravity, so that only rainwater exists in the sewage pipe, and when sewage needs to be output, air is filled into the second treatment area through the air source, so that the stored sewage flows down into the first treatment area under the action of air pressure and is discharged from the sewage pipe, effectively avoiding the technical defects of the structural design in the technology that the sewage input from the first treatment area directly enters the sewage pipe for output, which is very likely to cause serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive treatment pressure and waste of resources, etc., and can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0042] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic diagram of the structure of a sewage treatment device provided by an embodiment of the present invention;

[0045] Figure 2 for Figure 1 A top view of

[0046] Figure 3 A schematic diagram of another structure of a sewage treatment device provided by an embodiment of the present invention;

[0047] Figure 4 Another structural schematic diagram of a sewage treatment device provided by an embodiment of the present invention;

[0048] Figure 5 A schematic diagram of another structure of a sewage treatment device provided by an embodiment of the present invention;

[0049] Figure 6 for Figure 5 A top view of

[0050] Figure 7 for Figure 5 Side view in AA direction. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention; the "and / or" keyword involved in this implementation represents both and, or. In other words, A and / or B mentioned in the embodiments of this specification represent both A and B, and A or B, and describe the three states of A and B. For example, A and / or B means: only A is included but not B; only B is included but not A; A and B are included.

[0052] At the same time, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the present invention.

[0053] It should be noted that, in order to explain this specification in more detail so that those skilled in the art can understand this specification more clearly and understandably, and further support the technical problems to be solved by this specification and the corresponding technical effects that can be achieved, the following explanations are made for the terminology involved before introducing this specification:

[0054] "Unit area" refers to the area where sewage exists, such as residential areas, schools, office buildings, shopping malls, etc.; sewage branch pipes, "sewage pipes", are pipes used to transport rainwater, sewage, or mixed water of rainwater and sewage in the unit area pipeline; "first treatment area" refers to the sewage transported by the sewage branch pipes in the unit area. It can be a tank structure with treatment functions such as a septic tank; "bottom elevation" refers to the elevation value of the lowest layer of a certain part or component. "Top elevation" refers to the elevation value of the top layer of a certain part or component.

[0055] When the sewage treatment device provided in the embodiment of this specification is applied to the specific application scenario of the drainage system, the sewage treatment device can realize the regulation of sewage based on the air pressure input by the air source and the self-gravity of the sewage, that is, the discharge and storage of sewage. The drainage system may include a sewage branch pipe, a sewage pipe 30, a municipal pipe, etc. The sewage in the unit area is centrally transported to the sewage branch pipe.

[0056] Embodiment 1

[0057] For details, please refer to the attached Figure 1-2 In the implementation of the sewage treatment device, the sewage treatment device at least includes a first treatment area 20, a second treatment area 40 and an air source 120.

[0058] The first treatment area 20 and the second treatment area 40 are two independent areas of the sewage treatment unit. It can be understood that the first treatment area 20 is Figure 1 In the left part, the second processing area 40 is Figure 1In the right part, the first treatment area 20 has a storage space 101 for storing sewage, and is connected to the second treatment area 40 and the sewage pipe 30 respectively; the size and volume of the storage space 101 are not limited by the present invention, and can be flexibly designed according to actual operation requirements. Similarly, the second treatment area 40 also has a storage space 401 for storing the above-mentioned sewage, and is connected to the storage space 101; the size and volume of the storage space 401 are not limited by the present invention, and can be flexibly designed according to actual operation requirements. Among them, the bottom elevation of the part where the second treatment area 40 is connected to the first treatment area 20 is lower than the bottom elevation of the part where the first treatment area 20 is connected to the sewage pipe 30; here, the part where the second treatment area 40 is connected to the first treatment area 20 can refer to the part where sewage is transported from the second treatment area 40 to the first treatment area 20 or from the first treatment area 20 to the second treatment area 40. The gas source 120 is a device for filling the second treatment area 40 with compressed gas to form air pressure in the second treatment area 40 , thereby squeezing the sewage in the second treatment area 40 to flow toward the first treatment area 20 .

[0059] When the second treatment area 40 needs to take in water, the sewage in the first treatment area 20 flows into the second treatment area 40 for storage under the action of its own gravity; when the second treatment area 40 needs to discharge water, the gas source 120 fills the second treatment area 40 with compressed gas to form air pressure in the second treatment area 40, thereby squeezing the sewage flow in the second treatment area 40 into the storage space 101 and discharged from the sewage pipe 30.

[0060] As an embodiment of the first treatment area 20 , it may include: a gravity port 160 connected to the second treatment area 40 ; a sewage outlet 170 connected to the sewage pipe 30 , and the bottom elevation of the sewage outlet 170 is higher than the top elevation of the gravity port 160 .

[0061] As an implementation mode of the gas source 120, an exhaust pipe 403 can be started at the top of the second treatment area 40, and a first valve 406 and a second valve 407 can be arranged in parallel at the exhaust pipe 403; and the gas source 120 and the second treatment area 40 are connected through the first valve 406, and the second treatment area 40 is connected to the external atmospheric pressure through the second valve 407, so that when the second treatment area 40 needs to take in water, the first valve 406 is closed and the second valve 407 is opened, so that the sewage in the first treatment area 20 flows into the second treatment area 40 under the action of gravity, and when the second treatment area 40 needs to discharge water, the first valve 406 is opened and the second valve 407 is closed, and the gas source 120 fills the second treatment area 40 with compressed gas to form air pressure in the second treatment area 40, thereby squeezing the sewage in the second treatment area 40 into the storage space 101 and discharged from the sewage pipe 30. In order to ensure that the sewage transported by the first treatment area can flow smoothly into the second treatment area through the intercepting portion under the action of gravity when the second treatment area is filled with water, as a preferred solution, the top elevation of the second treatment area 40 is lower than the bottom elevation of the sewage outlet 170. Of course, when the top elevation of the second treatment area 40 is higher than the bottom elevation or top elevation of the sewage outlet 170, the sewage pipe 30 can also cross the internal space of the second treatment area 40 to achieve drainage. With respect to the first valve 406 and the second valve 407 provided at the vacuum port 405, in the embodiment of the present invention, the first valve 406 and the second valve 407 can also be replaced by a two-position three-way solenoid valve, that is, the vacuum pump is connected to the buffer portion through the two-position three-way solenoid valve, so that the functions of vacuuming and connecting with atmospheric pressure are achieved through the two-position three-way solenoid valve.

[0062] It should be noted that, for the above-mentioned sewage outlet 170, the first interception outlet 103, and the second interception outlet 104, the present invention does not limit the size of their apertures and the positions of their respective openings on their carriers, and can be flexibly designed according to actual operational needs, as long as the sewage can be interconnected in the first treatment area 20 and the second treatment area 40. Similarly, the number of second treatment areas 40 is not limited in the embodiments of this specification, and can be flexibly designed according to the actual water storage capacity. It should not be considered as being outside the protection scope of the present invention due to different aperture sizes, different positions of their respective openings on their carriers, and different numbers of second treatment areas 40.

[0063] As an application environment of the embodiments of this specification, for the "sewage that needs to be regulated" mentioned above, the regulation node can be set according to the situation of whether there is rainfall or not. For example, when it rains, if the sewage output from the first treatment area directly enters the sewage pipe and mixes with rainwater, then when the mixed water of rainwater and sewage is directly discharged into the natural water body, it is very easy to cause serious pollution to the receiving water body. If it is directly discharged into the sewage treatment facility for treatment, a large amount of relatively clean rainwater on rainy days will enter the sewage treatment facility for unnecessary treatment, resulting in a waste of resources. Therefore, at this time, when it rains, the sewage output from the first treatment area 20 can be regulated by the sewage treatment device provided in the embodiments of this specification, and the sewage regulation can be stopped when there is no rainfall, that is, the sewage output from the first treatment area 20 is directly input into the sewage pipe 30;

[0064] That is, when sewage needs to be stored during rainfall, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, so that only rainwater exists in the sewage pipe 30. When sewage needs to be discharged on sunny days, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage port 170 in sequence. This effectively avoids the technical defects in the prior art of the structural design that the sewage input from the first treatment area 20 directly enters the sewage pipe for output, which is very likely to cause serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive treatment pressure and waste of resources. This can achieve the technical effect of storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0065] As another application environment of the embodiments of this specification, for the above-mentioned "sewage that needs to be regulated and stored", the regulation node can be set according to the amount of rainfall for regulation and storage. For example, when the rainfall is relatively large, if the sewage output from the first treatment area directly enters the sewage pipe and mixes with rainwater, then when the mixed water of rainwater and sewage is directly discharged into the natural water body, it is very easy to cause serious pollution to the receiving water body. If it is directly discharged into the sewage treatment facility for treatment, a large amount of relatively clean rainwater on rainy days will enter the sewage treatment facility for unnecessary treatment, resulting in a waste of resources. Therefore, at this time, when the rainfall is relatively large, the sewage output from the first treatment area 20 can be regulated and stored by the sewage treatment device provided in the embodiments of this specification, and the sewage regulation and storage can be stopped when the rainfall is relatively small, that is, at this time, the sewage output from the first treatment area 20 is directly input into the sewage pipe 30.

[0066] That is, when it is necessary to regulate and store sewage, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, so that only rainwater exists in the sewage pipe 30, and when sewage needs to be discharged, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage port 170 in sequence. This effectively avoids the technical defects in the prior art of the structural design that the sewage input from the first treatment area 20 directly enters the sewage pipe for output, which is very likely to cause serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive treatment pressure and waste of resources. It can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0067] Those skilled in the art will appreciate that the present invention does not limit the amount of rainfall, and the rainfall parameter threshold can be set according to actual operational requirements.

[0068] As another application environment of the embodiments of this specification, for the above-mentioned "sewage that needs to be regulated", it can be based on the liquid level height in the second treatment area 40, by pre-setting the liquid level interval threshold, and real-time monitoring the liquid level height in the second treatment area 40, so that when the liquid level height is lower than the minimum value of the interval threshold, it is considered that the sewage needs to be regulated, that is, at this time, the sewage output from the first treatment area 20 flows into the second treatment area 40 for storage. When the liquid level height is higher than the maximum value of the interval threshold, the sewage regulation can be stopped, that is, at this time, the sewage output from the first treatment area 20 is directly input into the sewage pipe 30.

[0069] That is, when it is necessary to regulate and store sewage, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, so that only rainwater exists in the sewage pipe 30, and when sewage needs to be discharged, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage port 170 in sequence. This effectively avoids the technical defects in the prior art of the structural design that the sewage input from the first treatment area 20 directly enters the sewage pipe for output, which is very likely to cause serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive treatment pressure and waste of resources. It can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0070] As another application environment of the embodiments of the present specification, the regulating and storage nodes can be set for regulation according to whether the sewage treatment plant has surplus capacity. For example, when the sewage treatment plant does not have surplus capacity, if the sewage output from the first treatment area directly enters the sewage pipe, it is directly transported to the sewage treatment plant during non-rainy periods, or is mixed with rainwater during rainy periods and then transported to the sewage treatment plant. At this time, too much treated water will enter the sewage treatment plant and reach the treatment upper limit of the sewage treatment plant, which is very likely to overflow. Therefore, at this time, the sewage output from the first treatment area 20 can be regulated and stored by the sewage treatment device provided in the embodiments of the present specification, and the sewage regulation and storage can be stopped when the sewage treatment plant has surplus capacity, that is, the sewage output from the first treatment area 20 is directly input into the sewage pipe 30.

[0071] It should be noted that the description of the above four application environments of the sewage treatment device provided in the embodiment of this specification in the drainage system is only an example of the actual application of the sewage treatment device, and does not constitute a use restriction. Those skilled in the art can also understand that the sewage treatment device provided in the embodiment of this specification can also be applied to the drainage system in addition to the above four application environments, other application environments that need to be used for storing and regulating sewage, or a combination of the above four application environments, including other application scenarios other than the specific application scenario of the drainage system, and the present invention does not limit this. In other words, as long as it is an application environment or application scenario that can realize the storage of sewage and achieve the technical effect of regulating and storing sewage, it is applicable to the present invention and is within the protection scope of the present invention.

[0072] As an implementation method in the examples of this specification, the first treatment area 20 is a septic tank; the second treatment area 40 is one of a storage tank, a box culvert, and a pipe culvert, the two are independent of each other, and are connected through a gravity port 160.

[0073] As an implementation method of sewage circulation in the embodiment of this specification, the sewage treatment device also includes: a first switch 121 arranged at the sewage outlet 170; a second switch 122 arranged at the gravity outlet 160, wherein the first switch 121 and the second switch 122 can be any one of a gate, a weir gate, a valve, a gate valve, an air bag, an air pillow, a pipe clamp valve or a flexible shut-off device, and the present invention is not limited thereto. As long as the mechanism can achieve the conduction or cutoff of the inlet and outlet, it is applicable to the present invention and is within the protection scope of the present invention.

[0074] Furthermore, as a real-time method for controlling the opening and closing of the first switch 121, the second switch 122, the first valve 406 and / or the second valve 407 in the embodiment of this specification, the sewage treatment device may further include:

[0075] A first liquid level meter is disposed in the second treatment area 40 and is used to monitor the liquid level data of the sewage in the second treatment area 40;

[0076] The controller communicates with the first switch 121, the second switch 122, the first valve 406, the second valve 407 and the first liquid level meter respectively to receive liquid level data and switch the first switch 121 and the second switch 122 on and off according to the liquid level data; wherein the controller includes a memory and a processor, the memory stores a computer program, and when the program is executed by the processor, the following steps can be implemented:

[0077] Comparing the liquid level data with a standard liquid level interval, wherein the standard liquid level interval includes a minimum liquid level value and a maximum liquid level value;

[0078] If the liquid level data is less than or equal to the minimum liquid level value of the interval, the first switch is controlled to be closed, the second switch is controlled to be opened, the first valve 406 is closed, and the second valve 407 is controlled to be opened;

[0079] If the liquid level data is greater than or equal to the maximum liquid level value of the interval, the first switch is controlled to open, the first valve 406 is opened and the second valve 407 is closed, and air pressure is filled into the second processing area.

[0080] In this embodiment, when the liquid level height is lower than the minimum value of the interval threshold, it means that the storage space of the second treatment area 40 is very large. In order to reduce the conveying pressure of the sewage pipe and the treatment pressure of the sewage treatment facility, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, so that the sewage can be stored in the second treatment area 40 when the liquid level is relatively low. When the liquid level height is higher than the maximum value of the interval threshold, it means that the sewage stored in the second treatment area 40 is about to overflow. At this time, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage outlet 170 in turn. While effectively reducing the conveying pressure of the sewage pipe, or technical defects such as excessive treatment pressure and waste of resources of the sewage treatment facility, it can also effectively prevent the overflow of sewage in the second treatment area 40, and has the characteristic of high safety.

[0081] Furthermore, as another real-time method for controlling the opening and closing of the first switch 121, the second switch 122, the first valve 406 and / or the second valve 407 in the embodiment of this specification, the sewage treatment device also includes:

[0082] A first rain gauge, communicating with the controller, for monitoring whether it is a rainy period;

[0083] When the program stored in the above memory is executed by the processor, the following steps can also be implemented:

[0084] If it is currently in a rainy state, the first switch is controlled to be closed, the second switch is controlled to be opened, the first valve is controlled to be closed, and the second valve is controlled to be opened;

[0085] If the current state is not raining, the first switch is controlled to be turned on, the first valve is turned on and the second valve is closed, and air pressure is filled into the second processing area.

[0086] In this embodiment, when sewage needs to be stored during rainfall, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, so that only rainwater exists in the sewage pipe 30. When sewage needs to be discharged on sunny days, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage port 170 in sequence. This effectively avoids the technical defects of the prior art that the sewage input from the first treatment area 20 directly enters the sewage pipe for output, which is very likely to cause serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive treatment pressure and waste of resources. It can achieve the technical effect of storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0087] Furthermore, as another real-time method for controlling the opening and closing of the first switch 121, the second switch 122, the first valve 406 and / or the second valve 407 in the embodiment of this specification, the sewage treatment device also includes:

[0088] A second rain gauge communicates with the controller and is used to monitor rainfall when it is currently a rainy period;

[0089] When the program stored in the above memory is executed by the processor, the following steps can also be implemented:

[0090] If the current rainfall is less than the preset rainfall basic threshold, the first switch is controlled to be turned on, the first valve is opened and the second valve is closed, and air pressure is filled into the second processing area;

[0091] If the current rainfall is greater than the preset rainfall basic threshold, the first switch is controlled to be closed, the second switch is controlled to be opened, the first valve is controlled to be closed, and the second valve is controlled to be opened;

[0092] In this embodiment, when the rainfall is relatively heavy and sewage needs to be regulated, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, so that only rainwater when the rainfall is relatively heavy exists in the sewage pipe 30. When the rainfall is relatively light and sewage needs to be discharged, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage outlet 170 in sequence. This effectively avoids the technical defects of the structural design in which the sewage input from the first treatment area 20 directly enters the sewage pipe for output, which is very likely to cause serious pollution of natural water bodies when the rainfall is relatively heavy, or the sewage treatment facility has excessive treatment pressure and waste of resources. It can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0093] Furthermore, as another real-time method for controlling the opening and closing of the first switch 121, the second switch 122, the first valve 406 and / or the second valve 407 in the embodiment of this specification, the sewage treatment device may further include:

[0094] The second liquid level meter is installed in the sewage treatment plant and is used to monitor the liquid level data of the sewage in the sewage treatment plant;

[0095] The controller communicates with the first switch 121, the second switch 122, the first valve 406, the second valve 407, and the second liquid level meter respectively to receive liquid level data and switch the opening and closing of the switches and valves according to the liquid level data; wherein the controller includes a memory and a processor, the memory stores a computer program, and when the program is executed by the processor, the following steps can be implemented:

[0096] Comparing the liquid level data with a standard liquid level interval, wherein the standard liquid level interval includes a minimum liquid level value and a maximum liquid level value;

[0097] If the liquid level data is greater than the minimum liquid level value of the interval, the first switch is controlled to be closed, the second switch is controlled to be opened, the first valve is controlled to be closed, and the second valve is controlled to be opened;

[0098] If the liquid level data is less than the maximum liquid level value of the interval, the first switch is controlled to be opened, the first valve is controlled to be opened, and the second valve is controlled to be closed, so that gas is filled into the second processing area.

[0099] In this embodiment, when the liquid level is lower than the minimum value of the interval threshold, it means that the sewage treatment plant still has surplus processing capacity. At this time, the sewage stored in the second treatment area 40 only needs to flow into the sewage pipe 30 through the gravity port 160 and the sewage outlet 170 in sequence, so as to reasonably make effective use of the treatment capacity of the sewage treatment plant and achieve the technical effect of timely discharge of sewage. When the liquid level is higher than the maximum value of the interval threshold, it means that the treatment capacity of the sewage treatment plant has also reached the upper limit and cannot process more sewage. In order to reduce the treatment pressure of the sewage treatment facility, the sewage output from the first treatment area 20 only needs to flow into the second treatment area 40 through the gravity port 160 for storage, which has the characteristics of high safety.

[0100] It should be noted that the description of the above four implementation modes of the sewage treatment device provided in the embodiments of this specification in the drainage system is only an example of the actual application of the sewage treatment device, and does not constitute a use restriction. Those skilled in the art can also understand that the sewage treatment device provided in the embodiments of this specification can also be applied to the drainage system. In addition to the above four implementation modes, other implementation modes that need to be used for storing and regulating sewage, or a combination of the above four implementation modes, are not limited by the present invention. In other words, as long as the implementation mode can realize the storage or discharge of sewage and achieve the technical effect of regulating and storing sewage, it is applicable to the present invention and is within the scope of protection of the present invention.

[0101] Those skilled in the art will understand that the present invention does not limit the size setting of the basic rainfall threshold and the size setting of the standard liquid level interval, and the rainfall parameter threshold and the standard liquid level interval can be set according to actual operational requirements. Similarly, the monitoring of the rainy period and the non-rainy period, as well as the monitoring of the amount of rainfall, can be monitored by two rain gauges, while a rain monitor with two monitoring functions can also be used to monitor the rainy period and the non-rainy period, as well as the amount of rainfall, and the monitoring of the liquid level can be monitored by two liquid level gauges, while a liquid level monitor with two liquid level monitoring functions can also be used to monitor the liquid level of the buffer tank and the sewage treatment plant. The present invention does not limit it, as long as the implementation method of one or more monitoring devices that can realize the two monitoring functions is applicable to the present invention, and is also within the protection scope of the present invention.

[0102] As another implementation method of Example 1 of this specification, please continue to refer to Figure 3 The sewage treatment device provided in this embodiment also includes: a conducting pipe 50, which is arranged in the first treatment area 20, and the conducting pipe 50 specifically includes a first conducting port 501 and a second conducting port 502.

[0103] Specifically, in this embodiment, the second switch 122 provided at the gravity port 160 can be eliminated. This is because before the conducting pipe 50 is provided, in order to facilitate the circulation of water between the first treatment area and the second treatment area, the gravity port 160 is provided at the bottom of the first treatment area or the second treatment area. When the water in the first treatment area or the second treatment area is sewage, the residue or other pollutants with higher concentrations in the sewage are likely to settle at the bottom, which can easily lead to the blockage of the gravity port 160. Moreover, even if the gravity port 160 is not blocked, when the water in the second treatment area enters the first treatment area through the gravity port 160 under the action of air pressure, it will also cause a certain amount of "stirring" to the bottom of the first treatment area, which is not conducive to the biodegradation and discharge of pollutants in the water in the first treatment area.

[0104] Therefore, in this embodiment, a conducting pipe 50 is added, and the conducting pipe 50 is connected to the gravity port 160 through the second conducting port 502, and the pipe mouth elevation of the first conducting port 501 is higher than the bottom elevation of the sewage outlet 170. In this way, when water storage is required, the first valve 406 is closed and the second valve 407 is opened, and the first switch 121 at the sewage outlet 170 is closed. As the liquid level of water in the first treatment area continues to rise, when it just reaches the pipe mouth elevation of the first conducting port 501, the water in the first treatment area flows into the second treatment area through the conducting pipe 50 under the action of gravity. Since the pipe mouth elevation of the first conducting port 501 is higher than the bottom elevation of the sewage outlet 170, there is no need to perform additional control on the conducting pipe 50 when the water in the first treatment area is discharged normally. When the liquid level of the water in the first treatment area reaches the height of the sewage outlet 170, it is directly discharged from the sewage pipe 30, thereby effectively solving the problem that the residue or other high-concentration pollutants in the sewage in the first treatment area or the second treatment area are easily settled at the bottom, causing the gravity port 160 to be blocked, or even if the gravity port 160 is not blocked, the bottom of the first treatment area is blocked. The invention has the technical defect of causing certain "stirring" in the first treatment area, which is not conducive to the biochemical treatment and discharge of pollutants in the water in the first treatment area; when it is necessary to discharge the water in the second treatment area, the first valve 406 is opened and the second valve 407 is closed, and the gas source 120 fills the second treatment area 40 with compressed gas to form air pressure in the second treatment area 40, thereby squeezing the water in the second treatment area 40 to flow into the first treatment area through the conducting pipe 50, so as to achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0105] As another implementation method of the first embodiment of this specification, please continue to refer to Figure 4 , this implementation method is similar to Figure 3The embodiment shown in FIG. 1 corresponds to the embodiment shown in FIG. 1 , except that a second switch 122 is added at the gravity port 160. At this time, since the second switch 122 can control the flow of the conduction pipe 50, the pipe mouth elevation of the first conduction port 501 may not be limited in this embodiment, and it may be any elevation higher than the top elevation of the gravity port 160. Similarly, when water storage is required, the first valve 406 is closed and the second valve 407 is opened, and at the same time, the first switch 121 at the sewage outlet 170 is closed and the second switch 122 is opened. As the liquid level of water in the first treatment area continues to rise, when it just reaches the pipe mouth elevation of the first conduction port 501, the water in the first treatment area flows into the second treatment area through the conduction pipe 50 under the action of gravity. Since the pipe mouth elevation of the first conducting port 501 is higher than the bottom elevation of the sewage outlet 170, there is no need to perform additional control on the conducting pipe 50 when the water in the first treatment area is discharged normally. When the water level in the first treatment area reaches the height of the sewage outlet 170, it is directly discharged from the sewage pipe 30, thereby effectively solving the technical defects that the residue or other high-concentration pollutants in the sewage in the first treatment area or the second treatment area are easily settled to the bottom, causing the gravity port 160 to be blocked, or even if the gravity port 160 is not blocked, it will cause a certain "stirring" to the bottom of the first treatment area, which is not conducive to the biochemical and discharge of pollutants in the water in the first treatment area. When it is necessary to discharge the water in the second treatment area, the first valve 406 is opened and the second valve 407 is closed, and the gas source 120 fills the second treatment area 40 with compressed gas to form air pressure in the second treatment area 40, thereby squeezing the water in the second treatment area 40 to flow into the first treatment area through the conducting pipe 50, thereby achieving the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, easy operation and wide applicability.

[0106] As another implementation method of the first embodiment of this specification, please continue to refer to Figure 5-7 ,exist Figure 5-7 In the illustrated embodiment, the entire sewage treatment unit may be a tank structure, and the first treatment area 20 and the second treatment area 40 are two independent areas of the tank structure (e.g., the first treatment area 20 is on the left, and the second treatment area 40 is on the right). In the first treatment area 20, a plurality of partitions 70 may be provided to further divide the first treatment area 20 into a plurality of treatment sub-areas, and each partition 70 is provided with a water hole 60 for water to circulate between the plurality of treatment sub-areas through the water hole 60.

[0107] exist Figure 5-7In the embodiment shown, the sewage treatment device also includes a conducting pipe 50, but the conducting pipe 50 is arranged in the second treatment area 40; the conducting pipe 50 includes a first conducting port 501 and a second conducting port 502. The conducting pipe 50 is connected to the first treatment area 20 through the first conducting port 501; and the pipe opening elevation of the first conducting port 501 is higher than the bottom elevation of the sewage outlet 170; the second conducting port 502 is located at the bottom of the second treatment area 40. It should be noted that in this Figure 5-7 In the illustrated embodiment, the first switch 121 may be an airbag that can be inflated and exhausted through the air pipe 1211, and the sewage outlet 170 may be a bent inlet, that is, the end of the sewage pipe 30 connected to the first treatment area is bent, so that the sewage outlet 170 opens downward, and the internal space of the sewage outlet 170 is provided with an elastic area for elastic expansion of the airbag. It can be understood that when the airbag is filled with air, the airbag expands to fill the entire elastic area, and the "conduction function" of the sewage outlet 170 is closed. When the airbag discharges gas, the elastic area begins to conduct, and the "conduction function" of the sewage outlet 170 is opened. . Similarly, when water storage is needed, the first valve 406 is closed and the second valve 407 is opened, and the first switch 121 at the sewage outlet 170 is closed at the same time. As the water level in the first treatment area continues to rise, when it just reaches the pipe mouth elevation of the first conducting port 501, the water in the first treatment area flows into the second treatment area through the conducting pipe 50 under the action of gravity. Since the pipe mouth elevation of the first conducting port 501 is higher than the bottom elevation of the sewage outlet 170, there is no need to perform additional control on the conducting pipe 50 when the water in the first treatment area is discharged normally. When the water level in the first treatment area reaches the height of the sewage outlet 170, it is directly discharged from the sewage pipe 30; and when it is necessary to discharge the water in the second treatment area, the first valve 406 is opened and the second valve 407 is closed, and the air source 120 fills the second treatment area 40 with compressed gas to form air pressure in the second treatment area 40, thereby squeezing the water in the second treatment area 40 to flow into the first treatment area through the conducting pipe 50, so as to achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0108] for Figure 3 ,or Figure 4 ,or Figure 5-7 For the conducting tube 50 in any embodiment, it can be an "L"-shaped structure. Those skilled in the art can understand that the L-shaped structure is only a structural form of the conducting tube 50. Simple deformations made according to actual conditions in actual processes are also applicable to the present invention, such as an arc shape, or an arc shape at the corner of the L-shape, etc.

[0109] for Figure 3 ,or Figure 4 ,or Figure 5-7 For the first switch 121 and / or the second switch 122 in any embodiment, it can be any one of a gate, a weir gate, a valve, a gate valve, an airbag, an air pillow, a pipe clamp valve or a flexible shut-off device. The present invention is not limited to this. As long as the mechanism can achieve the conduction or cutoff of the conducting pipe, it is applicable to the present invention and is within the protection scope of the present invention.

[0110] Embodiment 2

[0111] With the same inventive concept as that of the first embodiment, the second embodiment of the present invention further provides a sewage storage method based on gravity water inlet and air pressure water outlet, which is applied to the device described in the first embodiment, and the method comprises:

[0112] receiving an identification instruction of whether the second processing area needs to discharge water;

[0113] If yes, the first switch is controlled to be turned on (for the implementation method in which a second switch is provided in the device described in the first embodiment, the second switch is turned on synchronously at this time), and the first valve is opened and the second valve is closed, so as to fill the second processing area with air;

[0114] The air squeezes the sewage in the second treatment area to flow into the first treatment area and is discharged from the sewage pipe;

[0115] receiving an identification instruction of whether the second processing area needs water storage;

[0116] If so, control the first switch to close (for the implementation method in which a second switch is provided in the device described in Example 1, the second switch is turned on synchronously at this time), the first valve to close and the second valve to open; the sewage in the first treatment area flows into the second treatment area under the action of gravity.

[0117] Specifically, when the first rain gauge detects that the current period is in a rainfall state, it sends an identification instruction to the controller that the second treatment area needs to store water, that is, the controller controls the first switch to be closed, the second switch to be opened, the first valve to be closed, and the second valve to be opened, so that the sewage output from the first treatment area 20 flows into the second treatment area 40 through the gravity port 160 under the action of gravity for storage, so that only rainwater exists in the sewage pipe 30. When the first rain gauge detects that the current period is not in a rainfall state, it sends an identification instruction that the second treatment area needs to discharge water to the controller, that is, the controller controls the first switch to open, the first valve to open and the second valve to close, and fills the second treatment area with air pressure through the air source. At this time, the sewage stored in the second treatment area 40 is pressed into the sewage pipe 30 and discharged through the gravity port 160 and the sewage outlet 170 under the action of air pressure, effectively avoiding the technical defects in the prior art that the sewage input from the first treatment area 20 is directly input into the sewage pipe for output, which is very easy to cause serious pollution of natural water bodies on rainy days, or the sewage treatment facility has excessive processing pressure and waste of resources. It can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple control, convenient operation and wide applicability.

[0118] As a second application environment of the method, the second rain gauge in the first embodiment may output an identification instruction of whether water is needed or not, and then the controller communicating with the second rain gauge may execute the control.

[0119] Specifically, when the second rain gauge detects that the current period has a large rainfall, an identification instruction that the second treatment area needs to store water is sent to the controller, that is, the controller controls the first switch to be closed, the second switch to be opened, the first valve to be closed, and the second valve to be opened, so that the sewage output from the first treatment area 20 flows into the second treatment area 40 through the gravity port 160 under the action of gravity for storage, so that only rainwater when the rainfall is relatively large exists in the sewage pipe 30, and when the second rain gauge detects that the current period has a small rainfall, an identification instruction that the second treatment area needs to discharge water is sent to the controller, that is, the controller controls the first switch to be opened .... One valve is opened and the second valve is closed, and air pressure is charged into the second treatment area through the air source. At this time, the sewage stored in the second treatment area 40 is pressed into the sewage pipe 30 and discharged through the gravity port 160 and the sewage outlet 170 in turn under the action of air pressure, which effectively avoids the technical defects of the structural design that the sewage input from the first treatment area 20 directly enters the sewage pipe for output when the rainfall is relatively large, which is very likely to cause serious pollution of natural water bodies, or excessive treatment pressure of sewage treatment facilities, waste of resources, etc., and can achieve the technical effect of regulating and storing sewage when sewage discharge is not needed, and has the characteristics of simple structure, convenient operation and wide applicability.

[0120] As a third application environment of the method, the first liquid level meter in the above-mentioned embodiment 1 can be used to output an identification instruction of whether water is needed or not, and then the controller communicating with the first liquid level meter can execute the control.

[0121] Specifically, when the first liquid level meter detects that there is still storage space in the second treatment area in the current period, an identification instruction that the second treatment area needs to store water is sent to the controller, that is, the controller controls the first switch to be closed, the second switch to be opened, the first valve to be closed, and the second valve to be opened, so that the sewage output from the first treatment area 20 flows into the second treatment area 40 through the gravity port 160 under the action of gravity for storage. When the first liquid level meter detects that there is no storage space in the second treatment area in the current period, an identification instruction that the second treatment area needs to discharge water is sent to the controller, that is, the controller controls the first switch to be opened, the first valve to be opened, and the second valve to be closed, and air pressure is filled into the second treatment area through the air source. At this time, the sewage stored in the second treatment area 40 is pressed into the sewage pipe 30 through the gravity port 160 and the sewage outlet 170 in turn under the action of air pressure and discharged, thereby effectively preventing sewage from overflowing in the second treatment area.

[0122] As a fourth application environment of the method, the second liquid level meter in the above-mentioned embodiment 1 can be used to output an identification instruction of whether water is needed or not, and then the controller communicating with the second liquid level meter can execute the control.

[0123] Specifically, when the second liquid level meter detects that there is still water storage space in the sewage treatment plant in the current period, an identification instruction that the second treatment area needs to discharge water is sent to the controller, that is, the controller controls the first switch to open, the first valve to open and the second valve to close, and the air pressure is filled into the second treatment area through the air source. At this time, the sewage stored in the second treatment area 40 is pressed into the sewage pipe 30 through the gravity port 160 and the sewage outlet 170 in turn under the action of air pressure and discharged, so that the treatment capacity of the sewage treatment plant is reasonably and effectively utilized to achieve the technical effect of timely discharge of sewage. When the second liquid level meter detects that there is no water storage space in the sewage treatment plant in the current period, an identification instruction that the second treatment area needs to store water is sent to the controller, that is, the controller controls the first switch to close, the second switch to open, the first valve to close and the second valve to open, so that the sewage output from the first treatment area 20 flows into the second treatment area 40 through the gravity port 160 through the intercepting part under the action of gravity for storage, which has the characteristics of high safety.

[0124] It should be noted that the description of the above four implementation methods of the sewage storage and regulation method provided in the embodiments of this specification in the drainage system is only an example of the actual application of the sewage storage and regulation method, and does not constitute a use restriction. Those skilled in the art can also understand that the sewage storage and regulation method provided in the embodiments of this specification can also be applied to the drainage system. In addition to the above four implementation methods, other implementation methods that need to be used for storing and regulating sewage, or a combination of the above four implementation methods, are not limited by the present invention. In other words, as long as it is an implementation method that can achieve the technical effect of storing or discharging sewage and regulating sewage, it is applicable to the present invention and is within the scope of protection of the present invention.

[0125] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A sewage treatment device with one-way power water outlet, characterized in that: The device comprises: sewage treatment unit and gas source (120); The sewage treatment unit comprises: a first treatment area (20) and a second treatment area (40); the first treatment area (20) is respectively connected to the second treatment area (40) and a sewage pipe (30); a first switch (121) is arranged on the sewage pipe (30); the second treatment area (40) is connected to the outside; the air source (120) is connected to the second treatment area (40); when water enters the second treatment area (40), the first switch (121) is in a closed state, and sewage in the first treatment area (20) flows into the second treatment area (40) under the action of gravity; when water exits the second treatment area (40), the first switch (121) is in an open state, and air is filled into the second treatment area (40) by the air source (120), so that sewage in the second treatment area (40) is discharged to the first treatment area (20) under the action of air pressure and discharged from the sewage pipe (30); The first processing area (20) comprises: a gravity port (160) in communication with the second processing area (40); A sewage outlet (170) is connected to the sewage pipe (30), and the bottom elevation of the sewage outlet (170) is higher than the top elevation of the gravity port (160); a first switch (121) is provided at the sewage outlet (170); The device also includes: A conducting pipe (50) is arranged in the first processing area (20), the conducting pipe (50) comprising a first conducting port (501) and a second conducting port (502); the conducting pipe (50) is connected to the gravity port (160) via the second conducting port (502); the pipe opening elevation of the first conducting port (501) is higher than the bottom elevation of the sewage outlet (170); The first treatment area (20) is a septic tank; the second treatment area (40) is one of a storage tank, a box culvert, and a pipe culvert; the first treatment area (20) and the second treatment area (40) constitute two independent areas of the sewage treatment unit.

2. The sewage treatment device with one-way power water outlet according to claim 1, characterized in that: A plurality of partitions (70) are arranged in the first processing area (20) to divide the first processing area (20) into a plurality of processing sub-areas, and at least one water through hole (60) is opened on each of the partitions (70).

3. A sewage treatment device with one-way power water outlet, characterized in that: The device comprises: sewage treatment unit and gas source (120); The sewage treatment unit comprises: a first treatment area (20) and a second treatment area (40); the first treatment area (20) is respectively connected to the second treatment area (40) and a sewage pipe (30); a first switch (121) is arranged on the sewage pipe (30); the second treatment area (40) is connected to the outside; the air source (120) is connected to the second treatment area (40); when water enters the second treatment area (40), the first switch (121) is in a closed state, and sewage in the first treatment area (20) flows into the second treatment area (40) under the action of gravity; when water exits the second treatment area (40), the first switch (121) is in an open state, and air is filled into the second treatment area (40) by the air source (120), so that sewage in the second treatment area (40) is discharged to the first treatment area (20) under the action of air pressure and discharged from the sewage pipe (30); The first processing area (20) comprises: a gravity port (160) in communication with the second processing area (40); A sewage outlet (170) is connected to the sewage pipe (30), and the bottom elevation of the sewage outlet (170) is higher than the top elevation of the gravity port (160); a first switch (121) is provided at the sewage outlet (170); The device also includes: a conduction pipe (50) disposed in the first processing area (20), the conduction pipe (50) comprising a first conduction port (501) and a second conduction port (502); the conduction pipe (50) is connected to the gravity port (160) via the second conduction port (502); a second switch (122) is disposed at the gravity port (160); The first treatment area (20) is a septic tank; the second treatment area (40) is one of a storage tank, a box culvert, and a pipe culvert; the first treatment area (20) and the second treatment area (40) constitute two independent areas of the sewage treatment unit.

4. A sewage treatment device with one-way power water outlet, characterized in that: The device comprises: sewage treatment unit and gas source (120); The sewage treatment unit comprises: a first treatment area (20) and a second treatment area (40); the first treatment area (20) is respectively connected to the second treatment area (40) and a sewage pipe (30); a first switch (121) is arranged on the sewage pipe (30); the second treatment area (40) is connected to the outside; the air source (120) is connected to the second treatment area (40); when water enters the second treatment area (40), the first switch (121) is in a closed state, and sewage in the first treatment area (20) flows into the second treatment area (40) under the action of gravity; when water exits the second treatment area (40), the first switch (121) is in an open state, and air is filled into the second treatment area (40) by the air source (120), so that sewage in the second treatment area (40) is discharged to the first treatment area (20) under the action of air pressure and discharged from the sewage pipe (30); The first processing area (20) is provided with a sewage outlet (170), the sewage outlet (170) is connected to the sewage pipe (30), and a first switch (121) is provided at the sewage outlet (170); The device further comprises: a conducting pipe (50) arranged in the second processing area (40); the conducting pipe (50) comprises a first conducting port (501) and a second conducting port (502); the conducting pipe (50) is connected to the first processing area (20) via the first conducting port (501); the pipe opening elevation of the first conducting port (501) is higher than the bottom elevation of the sewage outlet (170); the second conducting port (502) is located at the bottom of the second processing area (40); The first treatment area (20) is a septic tank; the second treatment area (40) is one of a storage tank, a box culvert, and a pipe culvert; the first treatment area (20) and the second treatment area (40) constitute two independent areas of the sewage treatment unit.

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