Personal Sewage Treatment Facilities With Sequencing Batch Reactor and Sewage Treatment Method Using The Same

Abstract

The present invention relates to a personal sewage treatment device equipped with a continuous batch reaction tank and a sewage treatment method using the same, comprising: a body (110) having a predetermined space portion having an inlet pipe (111) for sewage inflow located on one side and a discharge pipe (112) for discharged purified treated water located on the other side; a plurality of partitions provided inside the body (110); and a discharge tank (140) provided inside the body (110); a first transfer unit (200) provided inside the body (110) for transferring stored sewage; and a second transfer unit (300) located in front of the first transfer pipe (200) for transferring purified treated water to the discharge tank (140). The present invention relates to a personal sewage treatment device equipped with a continuous batch reactor and a sewage treatment method using the same, comprising an aeration unit (400) for supplying air to the stored sewage, wherein a portion of the space inside the body (110) is operated as a continuous batch reactor.

Description

Technology Field

[0001] The present invention relates to a personal sewage treatment device equipped with a continuous batch reactor and a sewage treatment method using the same, and more specifically, to a personal sewage treatment device equipped with a continuous batch reactor that is easy to maintain and has excellent durability, and a sewage treatment method using the same. Background Technology

[0003] Private sewage treatment systems are facilities that purify and discharge wastewater generated from buildings or facilities on their own; the term collectively refers to sewage treatment facilities and septic tanks, and they are primarily used in areas not connected to public sewage treatment facilities.

[0004] Special Measures Areas are regions designated by the Minister of Environment pursuant to the Framework Act on Environment Policy when environmental pollution or changes in the natural ecosystem are significant, making it difficult to maintain environmental standards or requiring urgent conservation; the Special Measures Areas for Water Quality Conservation of Paldang Lake and Daecheong Lake are considered the most representative examples.

[0005] In the case of sewage treatment in these special countermeasure areas, within the sewage treatment zone, it must be connected to the public sewer system, and outside the sewage treatment zone, the installation of private sewage treatment facilities is mandatory, and stricter effluent water quality standards (BOD 10 mg / L or less) than in general areas are applied.

[0006] Meanwhile, wastewater treatment can be broadly classified into physical treatment, chemical treatment, and biological treatment, and it is common practice to remove pollutants contained in wastewater by using these unit treatments in combination rather than using them individually.

[0007] Currently, private wastewater treatment systems are installed, maintained, and operated by the users; however, there are instances where they are not properly managed due to poor maintenance, and they may also be damaged due to material or structural issues. Prior art literature

[0009] Korean Registered Patent Publication No. 2048511, Korean Published Patent Publication No. 2018-0113939, Korean Registered Patent Publication No. 0917097, Korean Published Patent Publication No. 2001-0028648 The problem to be solved

[0010] The present invention was devised to solve the aforementioned problems and aims to provide a personal sewage treatment device equipped with a continuous batch reactor having a structure that facilitates easy management and maintenance by an individual, and a sewage treatment method using the same. means of solving the problem

[0012] A personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention for solving the above problems comprises: a body (110) having a predetermined space portion having an inlet pipe (111) for sewage inflow located on one side and a discharge pipe (112) for discharged purified treated water located on the other side; a plurality of partitions provided inside the body (110); and a discharge tank (140) provided inside the body (110); a first transfer unit (200) provided inside the body (110) for transferring stored sewage; a second transfer unit (300) located in front of the first transfer pipe (200) for transferring purified treated water to the discharge tank (140); and an aeration unit (400) for supplying air to the stored sewage; wherein a portion of the space inside the body (110) is operated as a continuous batch reaction tank.

[0013] In addition, in a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the body (110) is characterized in that its horizontal cross-section is rectangular and its external shape is a cuboid.

[0014] In addition, in a personal wastewater treatment device equipped with a continuous batch reaction tank according to the present invention, the plurality of partitions include a first partition (120) having a first penetration hole (121) formed therein and positioned at a predetermined distance from one side wall of the body (110), and a second partition (130) positioned in front of the first partition (120) while being spaced at a predetermined distance from the first partition (120); wherein a first space (S1) is formed by the one side wall of the body (110) and the first partition (120), a second space (S2) is formed by the first partition (120) and the second partition (130), and a third space (S3) is formed by the second partition (130) and the other side wall of the body (110), and the third space (S3) is operated as a continuous batch reaction tank.

[0015] In addition, in a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, sewage stored in the first space (S1) moves to the second space (S2) through the first penetration hole (121) of the first partition (120), and sewage stored in the second space (S2) moves to the third space (S3) through the second transfer unit (300), and the first transfer unit (200) comprises a first transfer pipe (210) positioned vertically, a first transfer pipe (220) connected to the lower end of the first transfer pipe (210) and bent into an 'L' shape so that the inlet faces upward, a first transfer pipe (230) connected to the upper end of the first transfer pipe (210) and having an outlet extended to the third space (S3), and air to allow the sewage stored in the second space (S2) to flow into the first transfer pipe (220). It is characterized by including a first transfer pipe (240) for supplying, wherein one side of the first transfer pipe (240) is connected to an air supply means and the other side is connected to communicate with the first transfer pipe (210).

[0016] In addition, in a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the second transfer unit (300) is characterized by including a second transfer pipe (310) that is connected to a submersible pump (320) on one side and extended to the discharge tank (140) on the other side.

[0017] In addition, in a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the third space (S3) is further equipped with a water level sensor (500) for determining whether the submersible pump (320) and / or the air supply means are operated.

[0018] In addition, the individual sewage treatment device equipped with a continuous batch reaction tank according to the present invention is characterized by further including a counter for checking the number of operations and the operating time of the submersible pump (320), and a control unit for controlling the operation of the air supply means and / or aeration unit based on the counter information.

[0019] In addition, in a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the body (110), the first partition (120), and the second partition (130) are characterized by being formed of concrete.

[0020] Furthermore, a method for treating sewage using a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention comprises: a first step of introducing sewage into a body portion and temporarily storing it; a second step of removing contaminants from the stored sewage through a continuous batch reaction; a third step of transferring the treated water, purified after the contaminants have been removed, to a discharge tank; and a fourth step of discharging the purified treated water from the discharge tank into a storm drain or a sewage drain; wherein, between the first and second steps, when the water level of the third space portion (S3) reaches a set maximum water level, the transfer of the sewage stored in the second space portion (S2) is stopped, and the sewage transferred to the third space portion (S3) undergoes a continuous batch reaction.

[0021] In addition, in a method for treating sewage using a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the continuous batch reaction is characterized by including an aeration step, an anaerobic or anoxic step, a sedimentation step, a discharge tank transfer step, and a resting step.

[0022] In addition, in a method for treating sewage using a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the third step further comprises the step of obtaining information on the daily number of operations and the time of one operation of the submersible pump by date and weekday, and controlling the operation of the air supply means and / or aeration unit.

[0023] In addition, in a method for treating sewage using a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the resting stage is characterized by intermittent aeration.

[0024] In addition, in a method for treating sewage using a personal sewage treatment device equipped with a continuous batch reaction tank according to the present invention, the intermittent aeration in the resting stage is characterized by being determined from the information on the number of daily operations and the time per operation of the submersible pump in the third stage, by date and by day of the week. Effects of the invention

[0026] According to the individual sewage treatment device equipped with a continuous batch reactor of the present invention and the sewage treatment method using the same, the first penetration hole of the first partition wall located between the first space and the second space is positioned close to the bottom of the body, thereby enabling operation with large water level fluctuations. This has the advantage of preventing the solidification of the scum layer near the water surface of the first space, making maintenance easier.

[0027] In addition, according to the individual sewage treatment device equipped with a continuous batch reactor of the present invention and the sewage treatment method using the same, when transferring sewage from the second space to the third space, negative pressure through air supply is utilized, which reduces pipe blockage or pump failure, thereby providing the advantage of reducing maintenance costs. Brief explanation of the drawing

[0029] FIG. 1 is a perspective view from one side of a personal wastewater treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention. FIG. 2 is a perspective view of a private sewage treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention, viewed from the other side. FIG. 3 is a perspective view showing the interior of a private wastewater treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention. FIG. 4 is a cross-sectional view taken vertically along the depth direction of a private sewage treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention. Specific details for implementing the invention

[0030] In this application, terms such as “comprising,” “having,” or “having” are intended to specify the existence of the features, numbers, steps, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0031] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way.

[0033] Hereinafter, a personal sewage treatment device equipped with a continuous batch reactor according to the present invention and a sewage treatment method using the same will be described with reference to the attached drawings. Identical components in the drawings are given the same reference numerals, and redundant descriptions of identical components are omitted.

[0034] FIG. 1 is a perspective view of a private sewage treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention, viewed from one side, and FIG. 2 is a perspective view of a private sewage treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention, viewed from the other side. FIG. 3 is a perspective view showing the interior of a private sewage treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention, and FIG. 4 is a cross-sectional view taken vertically along the depth direction of a private sewage treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention.

[0035] As illustrated in FIGS. 1 to 4, a personal wastewater treatment device equipped with a continuous batch reactor according to a preferred embodiment of the present invention may be configured to include a body part (100) having a predetermined shape and a space part inside, a first transfer part (200), a second transfer part (300), an aeration part (400), and a water level sensor (500).

[0036] First, the body (100) is provided with a plurality of partitioned spaces inside so as to receive incoming sewage and remove various pollutants contained in the sewage using microorganisms.

[0037] In detail, the body portion (100) is configured to include a body (110), a first partition (120), a second partition (130), a discharge tank (140), and a cover (150).

[0038] First, the body (110) forms the overall framework of the sewage treatment device, and on one side, an inlet pipe (111) through which sewage discharged from a household or the like flows in is located at a predetermined height, and on the other side facing each other, a discharge pipe (112) through which purified treated water is discharged is provided.

[0039] Here, the external shape of the body (110) is not particularly limited, but it is preferable that the horizontal cross-section be rectangular and the overall external shape be a cuboid so that the installation space can be utilized efficiently.

[0040] A plurality of partitions provided in the internal space of the body (110), for example, a first partition (120) and a second partition (130), are configured to divide the internal space of the body (110) into multiple areas.

[0041] When describing with reference to FIG. 4, the first partition (120) is positioned so as to be spaced apart from one side wall of the body (110) where the inflow pipe (111) is located, thereby forming a first space (S1), and the second partition (130) is positioned in front of the first partition (120) while spaced apart from the first partition (120) by a predetermined distance, so that a second space (S2) is formed between the first partition (120) and the second partition (130), and a third space (S3) is formed between the second partition (130) and the other side wall of the body (110).

[0042] Here, the first space (S1) corresponds to a sedimentation separation tank, the second space (S2) corresponds to a flow rate adjustment tank, and the third space (S3) corresponds to a sequencing batch reactor (SBR) for removing contaminants by beneficial microorganisms.

[0043] Although the first space (S1) can be defined as a sedimentation separation tank, the first partition (120) is provided with a first penetration hole (121) connecting the first space (S1) and the second space (S2), so that the first space (S1) can perform a flow rate adjustment function at a certain level, and since some material is settled in the second space (S2), it is possible to perform the function of a sedimentation separation tank.

[0044] The discharge tank (140) is located inside the body (110), more specifically near the other side wall of the body (110), which is the third space (S3), and the purified treated water is temporarily stored therein. Of course, when the water level of the discharge tank (140) rises above a certain level, the purified treated water is naturally discharged to the outside through the discharge pipe (112).

[0045] The cover (150) is located at the upper opening of the body (110) and is used to check the inspection, maintenance, and operating status of the equipment provided in each space. Although only the first cover (151) and the second cover (152) are shown in the drawing, the number or position of the covers can be changed as many times as needed.

[0046] Meanwhile, the body (110), the first partition (120), and the second partition (130) are preferably formed of concrete. Conventional personal sewage treatment devices are manufactured primarily using plastic materials with only lightweighting in mind. However, when manufactured primarily using plastic materials, deformation such as bending occurs in the first partition (120) and the second partition (120), including the body (110), due to the weight of the sewage itself stored inside the body (110), and in some cases, damage may occur.

[0047] However, in the present invention, since the body (110), the first partition (120), and the second partition (130) are formed using concrete material, the durability, such as preventing deformation, is excellent.

[0048] Since the discharge tank (140) and cover (150) are not subjected to a large load, it is preferable to manufacture them using plastic material.

[0049] Furthermore, the first transfer section (200) is configured to transfer sewage stored in the second space section (S2) to the third space section (S3), and may be configured to include a firsta transfer pipe (210), a firstb transfer pipe (220), a firstc transfer pipe (230), and a firstd transfer pipe (240).

[0050] In detail, the first transfer pipe (210) is positioned approximately vertically near the second bulkhead (130), with its lower end positioned at a predetermined distance from the bottom of the body (110) and its upper end extended to the vicinity of the upper end of the second bulkhead (130).

[0051] The first transfer pipe (220) is bent into an approximately 'L' shape so that its opening faces upward, and its lower end is connected to the lower end of the first transfer pipe (210), thereby communicating with the first transfer pipe (210).

[0052] One side of the 1c transfer pipe (230) is connected to the upper end of the 1a transfer pipe (210), and the outlet is arranged to extend to the third space (S3).

[0053] The first transfer pipe (240) is configured to inject air, with one side connected to the lower side of the first transfer pipe (240) and the other side arranged to extend to a predetermined depth toward the upper side.

[0054] To explain the sewage transfer process by the first transfer unit (200) having the configuration as described above, air generated by an air supply means (not shown), such as a blower, is supplied to the inlet of the first transfer pipe (240), and the supplied air moves toward the upper part of the first transfer pipe (210).

[0055] As a result, sewage flows into the 1b transfer pipe (220) due to the negative pressure generated as the supplied air rises, and then moves to the 3rd space (S) by sequentially passing through the 1a transfer pipe (210) and the 1c transfer pipe (230).

[0056] Meanwhile, when the depth from the bottom of the body (110) to the inflow pipe (111) is defined as the first depth (L1), it is preferable that the first penetration hole (121) of the first bulkhead (120) be located at a distance of the second depth (L2) from the bottom of the body (110).

[0057] Here, the second depth (L2) is a depth corresponding to 20-30% of the first depth (L1).

[0058] When the first penetration hole (121) is positioned to meet the conditions described above, it prevents the first transfer pipe (220), the first transfer pipe (210), or the first transfer pipe (230), which may be blocked by heavy debris moving to the rear end, and also allows for easy maintenance by cleaning only the first space (S1) during periodic / intermittent cleaning.

[0059] Furthermore, since the first penetration port (121) is located closer to the bottom of the body (110) than the inlet pipe (111), it is possible to operate with large fluctuations in the water level, which can also contribute to preventing the solidification of the scum layer near the water surface. Of course, since the first space (S1) and the second space (S2) are connected to each other through this first penetration port (121), it is obvious that a flow rate adjustment function can also be performed.

[0060] It is preferable that the inlet of the first transfer pipe (220) be located at a third depth (L3) away from the bottom of the body (110).

[0061] Here, the third depth (L3) is a depth corresponding to 25–40% of the first depth (L1).

[0062] The second transfer unit (300) is located in the third space (S3) and is configured to transfer purified treated water to the discharge tank (140). Specifically, the second transfer unit (300) may be configured to include a second transfer pipe (310) that is connected to an underwater pump (320) on one side and extends to the discharge tank (140) on the other side.

[0063] The aeration unit (400) is configured to supply air to the stored sewage located in the third space (S3). That is, the aeration unit (400) may be configured to include a nozzle (410) for finely spraying the supplied air, and a first air supply pipe (420) having one side connected to the nozzle (410) and the other side connected to an air supply means (not shown), such as a blower or a compressor.

[0064] As previously explained, since the third space (S3) is operated as a continuous batch reactor, the air required for this is supplied by the aeration unit (400).

[0065] In addition, when the wastewater in the third space (S3) is in an idle state for a long period, the activity of microorganisms may be significantly reduced, so to prevent this, air can be supplied intermittently through the aeration unit (400).

[0066] A water level sensor (500) is installed in the third space (S3) to determine whether the submersible pump (320) and / or air supply means are operated. For example, the water level sensor (500) may be composed of a high water level sensor and a low water level sensor, and when the water level of the third space (S3) corresponds to a high water level, air is not supplied to the inlet of the first transfer pipe (240) so that sewage is no longer supplied to the third space (S3). Of course, since a continuous batch reaction must be performed when the water level of the third space (S3) reaches a high water level, it is obvious that the air supply means must be operated so that air can be supplied at a predetermined stage.

[0067] Also, when the continuous batch reaction ends, the submersible pump (320) is operated to transfer the purified treated water to the discharge tank (140), but when the water level of the third space (S3) corresponds to a low water level, the operation of the submersible pump (320) is stopped so that the purified treated water is no longer transferred to the discharge tank (140).

[0068] Additionally, a counter (not shown) for checking the number of operations and operating time of the submersible pump (320) by date and day of the week, and a control unit (not shown) for controlling the operation of the air supply means and / or a diffuser based on the counter information may be further provided, and a detailed description of the functions and operating principles thereof will be provided later.

[0069] Here, the control unit (not shown) may be implemented in the form of hardware or software, or may be implemented in a combined form of hardware and software. The control unit (not shown) may be implemented in the form of a computing device (computational unit) such as a microprocessor, but is not limited thereto and may be implemented in various forms obvious to those skilled in the art.

[0070] In addition, the control unit (not shown) can transmit the received information to an administrator or the like, and can display such signals on an equipment monitor such as a display unit or transmit them to a worker's terminal such as a mobile phone.

[0071] A personal sewage treatment device equipped with a continuous batch reactor according to the present invention may further include an agitator (600) as needed. The agitator (600) is configured to agitate the sewage in the third space (S3) while minimizing the dissolution of air when the sewage in the third space (S3) is in an idle state for a long period of time.

[0072] In detail, the agitator (600) is configured to include a second air supply pipe (610) and a gas-liquid mixing pipe (620). The second air supply pipe (610) is positioned vertically in the third space (S3), and air is supplied through an air supply means (not shown) connected to an air inlet on the upper side, and air moves through an air outlet located on the lower side.

[0073] The gas-liquid mixing pipe (620) is positioned vertically in the third space (S3) while being connected to the air outlet of the second air supply pipe (610) on the lower side nearby.

[0074] Accordingly, when air is supplied through the upper part of the second air supply pipe (610), the supplied air flows into the side of the gas-liquid mixing pipe (620), and as the air rises upward inside the gas-liquid mixing pipe (620), the sewage from the third space (S3) flows into the lower part of the gas-liquid mixing pipe (620), and as a result, the sewage from the third space (S3) is agitated.

[0075] Although not shown in the drawing, a valve (not shown) for controlling the amount of air supplied to the second air supply pipe (610) may be additionally provided.

[0076] Next, we will explain a method for treating wastewater using a private wastewater treatment device equipped with the aforementioned continuous batch reactor.

[0077] A sewage treatment method according to the present invention comprises a first step of introducing sewage into a body and temporarily storing it, a second step of removing contaminants from the stored sewage through a continuous batch reaction, a third step of transferring the treated water, from which contaminants have been removed and purified, to a discharge tank, and a fourth step of discharging the purified treated water from the discharge tank into a storm drain or a sewage pipe.

[0078] Additionally, between the first and second stages, when the water level of the third space (S3) reaches a set high level, the transfer of sewage stored in the second space (S2) is stopped, and the sewage transferred to the third space (S3) undergoes a second stage in which a continuous batch reaction is carried out to remove contaminants.

[0079] In addition, the continuous batch reaction in the second stage may proceed sequentially through an aeration stage, an anaerobic or anoxic stage, a sedimentation stage, a discharge tank transfer stage, and a resting stage, and the time in each stage can be changed at any time. Since this continuous batch reaction is a known technology, a detailed explanation will be omitted.

[0080] Meanwhile, during the resting phase, which is one of the stages of the continuous batch reaction, it is desirable to aerate intermittently. Since the private wastewater to be treated by the present invention is frequently not discharged in a constant amount, the continuous batch reaction is not always performed at a constant frequency.

[0081] Therefore, the resting phase may be prolonged, and since this may cause a decrease in the activity of aerobic microorganisms inhabiting the third space (S3), it is advisable to aerate at regular intervals.

[0082] Here, intermittent aeration during the idle phase can be determined from the third stage information stored in the counter, namely the number of times the submersible pump operated by date and day of the week to transfer the treated water to the discharge tank, and the information on the time of operation per operation.

[0083] For example, by controlling aeration to be performed for a predetermined period at appropriate times for each date and day of the week through artificial intelligence technology that accumulates and learns the aforementioned information, it is possible to prevent the activity of aerobic microorganisms inhabiting the third space (S3) from decreasing.

[0084] Meanwhile, it is also possible to supply air through the second air supply pipe to agitate the sewage in the third space (S3) intermittently or continuously, and such agitation can be performed between aeration stages that proceed intermittently during the resting stage.

[0086] Specific parts of the present invention have been described in detail above. To those skilled in the art, these specific descriptions are merely preferred embodiments and do not limit the scope of the invention. It is obvious to those skilled in the art that various changes and modifications are possible within the scope and spirit of the invention, and that such variations and modifications fall within the scope of the appended claims. Explanation of the symbols

[0088] 100: Body part 110: Body 111: Inlet pipe 112: Discharge pipe 120: First bulkhead 121: First penetration 130: Second bulkhead 140: Discharge tank 150: Cover 151: 1st Cover 152: 2nd Cover 200: 1st Transfer Unit 210: Transfer Pipe No. 1a 220: Transfer Pipe No. 1b 230: 1c Transfer Pipe 240: 1d Transfer Pipe 300: 2nd Transfer Unit 310: Second transfer pipe 320: Submersible pump 400: Ministry of Trade, Industry and Energy 410: Nozzle 420: First air supply pipe 500: Water level sensor 600: Stirrer 610: 2nd air supply pipe 620: Gas-liquid mixing pipe S1: First space section S2: Second space section S3: Third space part L1: 1st Depth L2: 2nd Depth L3: Third Depth

Claims

Claim 1 delete Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 A body (110) having a predetermined space portion having an inlet pipe (111) for sewage to flow in on one side and a discharge pipe (112) for discharged purified water on the other side, a plurality of partitions provided inside the body (110), and a discharge tank (140) provided inside the body (110); a first transfer unit (200) provided inside the body (110) for transferring stored sewage; a second transfer unit (300) located in front of the first transfer pipe (200) for transferring purified treated water to the discharge tank (140); and an aeration section (400) for supplying air to the stored sewage; wherein a portion of the space inside the body (110) is operated as a continuous batch reaction tank, and the plurality of partitions include a first partition (120) having a first penetration hole (121) formed therein and positioned at a predetermined distance from one side wall of the body (110), and a second partition (130) positioned in front of the first partition (120) while being spaced at a predetermined distance from the first partition (120), wherein a first space (S1) is formed by the one side wall of the body (110) and the first partition (120), a second space (S2) is formed by the first partition (120) and the second partition (130), and a third space (S3) is formed by the second partition (130) and the other side wall of the body (110). The method of treating sewage using a personal sewage treatment device equipped with a continuous batch reaction tank that operates as a continuous batch reaction tank, wherein the third space part (S3) is formed, comprises: a first step of introducing sewage into a body part and temporarily storing it; a second step of removing contaminants from the stored sewage through a continuous batch reaction; a third step of transferring the treated water, purified by removing contaminants, to a discharge tank; and a fourth step of discharging the purified treated water from the discharge tank into a storm drain or sewage pipe.A sewage treatment method using a private sewage treatment device equipped with a continuous batch reaction tank, comprising: a first step and a second step, wherein between the first step and the second step, when the water level of the third space (S3) reaches a set maximum water level, the transfer of sewage stored in the second space (S2) is stopped, and the sewage transferred to the third space (S3) undergoes a continuous batch reaction, wherein the continuous batch reaction includes an aeration step, an anaerobic or anoxic step, a sedimentation step, a discharge tank transfer step, and a resting step, wherein aeration is performed intermittently during the resting step. Claim 10 delete Claim 11 delete Claim 12 delete Claim 13 A sewage treatment method using a private sewage treatment device equipped with a continuous batch reaction tank, characterized in that, in claim 9, intermittent aeration in the resting stage is determined from the daily number of operations and the time per operation of a submersible pump for transferring purified treated water to a discharge tank in the third stage, by date and weekday.

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