Eco-Friendly Septic Tank Structure for Apartment Complex

Abstract

The present invention relates to an eco-friendly septic tank structure for multi-unit housing complexes. The present invention comprises a household drain pipe for draining wastewater from each household, a wastewater pipe connected to the household drain pipe through which wastewater flows, and a septic tank connected to the wastewater pipe for storing wastewater. The septic tank comprises a septic tank body having an internal space for storing wastewater, a ventilation pipe connecting the internal space of the septic tank body to the outside, a fan installed in the ventilation pipe, and a deodorizing filter installed in the ventilation pipe to remove odors. A plurality of compressed air supply units are installed in the wastewater pipe, and each compressed air supply unit includes a compressed air supply member having an air supply hole and a flow path formed therein, a cylinder for moving the compressed air supply member back and forth, an air supply tube, and a compressed air supply device. A flow sensor is provided in the wastewater pipe, and when the flow rate transmitted from the flow sensor is greater than or equal to a reference flow rate, the controller drives the cylinder to protrude the compressed air supply member into the wastewater pipe and supplies compressed air into the wastewater pipe through the compressed air supply device. Accordingly, the accumulation of sediment inside the sewage pipe, sewage stagnation, and odor generation can be suppressed, and odors generated from the septic tank can be reduced through a deodorizing filter.

Description

Technology Field

[0001] The present invention relates to an eco-friendly septic tank structure for multi-unit housing complexes, and more specifically, to an eco-friendly septic tank structure for multi-unit housing complexes that, in the process of guiding wastewater discharged from each household of a multi-unit housing complex to a septic tank through a wastewater pipe, selectively protrudes a compressed air supply member into the wastewater pipe according to changes in the flow rate of the wastewater pipe and supplies compressed air, thereby suppressing odor stagnation, sediment attachment, and blockage inside the wastewater pipe, and reducing odors generated in the septic tank through a ventilation pipe, a fan, and a deodorizing filter. Background Technology

[0003] Generally, multi-unit housing complexes such as apartments, row houses, and officetels are equipped with household drainage pipes for draining domestic wastewater generated in each household, sewage pipes connected to the household drainage pipes to guide wastewater downward within the building, and septic tanks connected to the sewage pipes to store or treat wastewater.

[0004] In the sewage drainage structure of such multi-unit housing complexes, sewage is discharged intermittently from multiple households, so the flow rate inside the sewage pipes can vary significantly over time. In particular, during periods when the discharge volume is low, sewage or foreign matter may remain inside the sewage pipes or adhere to the inner walls, and as food waste, organic pollutants, and sludge gradually accumulate, it can cause odors, reduced drainage efficiency, and pipe blockage.

[0005] In addition, malodorous components such as hydrogen sulfide, ammonia, and mercaptans may be generated inside septic tanks during the storage and decomposition of wastewater, and these components can flow back outward or inward through the tank's ventilation pipes or building plumbing. Consequently, in multi-unit housing complexes, problems such as odor complaints, deterioration of the residential environment, and increased maintenance costs for septic tanks may arise.

[0006] In this regard, various technologies for removing odors generated in septic tanks have been proposed in the past. For example, Korean Registered Patent Publication No. 10-0425521, which is a prior art, discloses a method for removing odors from a septic tank by reducing the odors generated in the septic tank using an odor control agent, absorbing and removing them through an odor removal device, and then discharging the tank.

[0007] However, the aforementioned conventional technology focuses only on removing odors already generated inside the septic tank or reducing emitted odors, and fails to provide a structure that actively suppresses the causes of sewage stagnation, sediment accumulation, pipe blockage, and odor generation that may occur inside the sewage pipes of multi-unit housing due to changes in flow rate.

[0008] In particular, since the flow rate of sewage pipes in multi-unit dwellings varies irregularly depending on the drainage patterns of multiple households, supplying air in the same manner at all times may result in unnecessary energy consumption; conversely, if a fixed spray unit is installed inside the sewage pipe, problems may arise such as obstructing the sewage flow or causing foreign matter to get stuck and accumulate.

[0009] In addition, prior art 1 does not disclose or suggest a structure that detects the flow rate of a sewage pipe, protrudes a compressed air supply member into the sewage pipe and sprays compressed air only when the flow rate exceeds a reference flow rate, and minimizes the protrusion of the compressed air supply member during normal times to reduce sewage flow resistance.

[0010] Therefore, there is a need to develop an eco-friendly septic tank structure capable of selectively supplying compressed air in response to changes in wastewater flow rate within the sewage pipes of multi-unit housing complexes, suppressing the attachment of sediment and the generation of odors inside the pipes in advance, and simultaneously reducing odors generated from the septic tank through ventilation pipes, fans, and deodorizing filters. Prior art literature

[0011] Republic of Korea Registered Patent No. 10-0425521 The problem to be solved

[0012] The present invention has been devised to solve the aforementioned problems, and the objectives of the present invention are as follows.

[0013] The objective of the present invention is to provide an eco-friendly septic tank structure for a multi-unit housing complex that can detect the flow rate of wastewater inside a sewage pipe and suppress the attachment of sediment by supplying compressed air after protruding a compressed air supply member into the sewage pipe when wastewater discharged from each household of the multi-unit housing flows into the septic tank through a sewage pipe, and when the detected flow rate is greater than or equal to a standard flow rate.

[0014] Another objective of the present invention is to provide an eco-friendly septic tank structure for multi-unit housing complexes that can reduce flow resistance and blockage of foreign substances inside the sewage pipe during normal times by configuring the compressed air supply member to protrude into the sewage pipe only when necessary, and perform cleaning and odor reduction inside the pipe through compressed air when the flow rate increases.

[0015] Another objective of the present invention is to provide an eco-friendly septic tank structure for multi-unit housing complexes that allows for the forward and backward movement of the compressed air supply member while preventing leakage and odor leakage around the connection hole by placing a flexible waterproof tube between the connection hole of the sewage pipe and the compressed air supply member.

[0016] Another objective of the present invention is to provide an eco-friendly septic tank structure for multi-unit housing complexes that can improve the residential environment of the complex by installing a ventilation pipe in the septic tank body and equipping the ventilation pipe with a fan and a deodorizing filter, thereby forcibly exhausting and filtering odors generated inside the septic tank.

[0017] The objects of the present invention are not limited to those mentioned above, and other unmentioned objects and advantages of the present invention may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0019] To achieve the above objectives, the present invention provides an eco-friendly septic tank structure for multi-unit housing complexes.

[0020] The above-mentioned eco-friendly septic tank structure for a multi-unit housing complex comprises: a household drainage pipe that is placed in the building and drains wastewater from each household;

[0021] A sewage pipe installed in a state of being erected in the building to be connected to the end of the household drainage pipe, through which sewage drained from the household drainage pipe flows; and

[0022] A septic tank that is buried underground and connected to the end of the sewage pipe, and stores wastewater drained through the sewage pipe;

[0023] The above septic tank is,

[0024] A septic tank body having an internal space for storing the above-mentioned wastewater and a connecting pipe formed that connects to the end of the above-mentioned wastewater pipe;

[0025] A ventilation pipe connecting the internal space and the outside of the above-mentioned septic tank body;

[0026] A fan installed in the above ventilation pipe and driven according to the control of a controller; and

[0027] A deodorizing filter installed in the above ventilation pipe and removing odors generated from the above wastewater; is provided,

[0028] The above sewage pipe is equipped with a plurality of compressed air supply units arranged at a plurality of locations spaced apart from each other along the longitudinal direction of the sewage pipe, and

[0029] Each of the above plurality of compressed air supply units is,

[0030] A compressed air supply member having air supply holes formed therein and a flow path formed therein that communicates with the air supply holes;

[0031] A cylinder that moves the compressed air supply member back and forth in the radial direction of the sewage pipe under the control of the above controller;

[0032] An air supply tube connected to the flow path of the above-mentioned compressed air supply member; and

[0033] A compressed air supply device that supplies compressed air to the air supply tube under the control of the above controller; and

[0034] Connection holes are formed at multiple locations of the above sewage pipe, and

[0035] In each of the above connection holes, the above compressed air supply member is inserted and connected so as to be able to move back and forth, and

[0036] The above cylinder is installed on the outer circumference of the above sewage pipe, and

[0037] The rod of the above cylinder is connected to the rear end of the above compressed air supply member, and

[0038] As the rod of the cylinder moves back and forth along the radial direction of the sewage pipe, the compressed air supply member protrudes into the interior of the sewage pipe through the connecting hole or retracts toward the connecting hole.

[0039] Between the inner circumference of the above-mentioned connecting hole and the outer surface of the above-mentioned compressed air supply member, a flexible waterproof tube is provided to surround the perimeter of the above-mentioned compressed air supply member, and

[0040] The above flexible waterproof tube allows for forward and backward displacement of the above compressed air supply member while watertightly connecting the connection hole and the above compressed air supply member,

[0041] The above sewage pipe is equipped with a flow sensor that measures the flow rate of sewage drained through the above sewage pipe and transmits it to the controller.

[0042] If the controller determines that the flow rate transmitted from the flow sensor is greater than or equal to a preset reference flow rate,

[0043] The rod of the above cylinder is extended to protrude the above compressed air supply member into the interior of the sewage pipe, and

[0044] The above compressed air supply device is driven to supply the compressed air into the interior of the sewage pipe through the air supply tube, the flow path of the compressed air supply member, and the air supply holes.

[0045] Here, the compressed air supply member is,

[0046] A closed end is provided at the tip protruding into the interior of the above sewage pipe, and

[0047] The air supply holes are formed spaced apart from each other along the outer surface of the compressed air supply member,

[0048] At least some of the above air supply holes are formed to be inclined asymmetrically with respect to the radial direction of the compressed air supply member,

[0049] The above compressed air is characterized by being configured to have a rotational component along the inner surface of the sewage pipe.

[0050] And, the above flexible waterproof tube is,

[0051] A first fixing part fixed to the inner circumference of the above-mentioned connection hole or to the inner circumference of the sewage pipe around the above-mentioned connection hole;

[0052] A second fixing part fixed to the outer surface of the above-mentioned compressed air supply member; and

[0053] A corrugated portion formed between the first fixed portion and the second fixed portion, which is extended or bent and deformed in the forward and backward directions of the compressed air supply member; comprising

[0054] The above-mentioned corrugated portion is characterized by being configured to block sewage leakage and odor leakage through the connecting hole during the forward and backward movement of the above-mentioned compressed air supply member.

[0055] In addition, the above controller,

[0056] If the state in which the flow rate transmitted from the flow sensor is greater than the reference flow rate persists for longer than a preset reference time, the cylinder is controlled to protrude the compressed air supply member into the interior of the sewage pipe, and

[0057] After driving the above compressed air supply device for a preset injection time, the cylinder is controlled to retract the above compressed air supply member toward the connection hole, and

[0058] When the above flow rate decreases to less than the above standard flow rate, the compressed air supply member is controlled so that it does not protrude into the interior of the sewage pipe.

[0060] In particular, a backflow prevention valve is installed in the flow path of the air supply tube or the compressed air supply member, and

[0061] The above backflow prevention valve is,

[0062] The flow of compressed air from the above-mentioned compressed air supply device toward the above-mentioned compressed air supply member is permitted, and

[0063] It is characterized by being configured to block the backflow of sewage, moisture, odorous gas, or foreign substances from the interior of the sewage pipe toward the compressed air supply member or the air supply tube.

[0064] A connecting hole cleaning ring is provided around the above connecting hole, and

[0065] The above connecting hole cleaning ring is,

[0066] It is arranged to surround the outer surface of the above-mentioned compressed air supply member, and

[0067] The above compressed air supply member is characterized by being configured to remove sludge, debris, or moisture attached to the outer surface of the above compressed air supply member when the above compressed air supply member is retracted from the inside of the sewage pipe toward the connection hole.

[0068] The above connecting hole cleaning ring is positioned adjacent to the first fixing part of the above flexible waterproof tube, and

[0069] The above connecting hole cleaning ring is formed of an elastic material and elastically contacts the outer surface of the above compressed air supply member, and

[0070] It is characterized by being configured to block foreign substances moving along the outer surface of the compressed air supply member from entering the corrugated portion of the flexible waterproof tube when the compressed air supply member is retracted.

[0071] An alignment guide portion is installed on the outer circumference of the above sewage pipe to guide the forward and backward directions of the above compressed air supply member, and

[0072] The above alignment guide part is,

[0073] A fixing bracket fixed to the outer surface of the above sewage pipe;

[0074] A guide hole formed in the fixed bracket, through which the compressed air supply member passes and which guides the direction of movement of the compressed air supply member; and

[0075] It is characterized by including a cylinder support member that supports the cylinder in a direction corresponding to the radial direction of the sewage pipe.

[0076] A pressure sensing part is provided in the flow path of the air supply tube or the compressed air supply member, and

[0077] The pressure sensing unit measures the pressure of the air supply tube or the flow path when the compressed air supply device is operated and transmits it to the controller.

[0078] The above controller is,

[0079] If the pressure transmitted from the pressure sensing unit is greater than or equal to a preset reference pressure, it is determined that the air supply holes or the flow path are blocked by foreign matter, and

[0080] The above-mentioned compressed air supply device is characterized by being repeatedly driven in a pulse manner, or by being controlled to stop the operation of the above-mentioned compressed air supply unit.

[0081] The above ventilation pipe, the above septic tank body, or the above sewage pipe is equipped with an odor detection sensor, and

[0082] The above odor detection sensor detects the concentration of odor components and transmits it to the controller, and

[0083] The above controller is,

[0084] When the odor concentration transmitted from the odor detection sensor is greater than or equal to a preset standard concentration, the fan or the compressed air supply device is driven to guide the odor components remaining inside the sewage pipe or inside the septic tank body toward the deodorizing filter.

[0085] A sediment detection sensor is provided in the lower region of the above sewage pipe or in the inlet of the above septic tank body, and

[0086] The above sediment detection sensor detects the height, thickness, or attachment status of sludge or sediment deposited on the inner surface of the sewage pipe or the inlet of the septic tank body and transmits it to the controller.

[0087] The above controller is,

[0088] The invention is characterized by controlling the supply of compressed air by prioritizing the operation of a compressed air supply unit located in the lower region of the sewage pipe when the detection value transmitted from the sediment detection sensor is greater than or equal to a preset standard sediment value.

[0089] In addition, vibration modules are installed at intervals at multiple locations in the sewage pipe according to the present invention. The installation locations of the vibration modules are set in the controller.

[0090] The above controller controls the vibration generation level of each of the above vibration modules.

[0091] Additionally, auxiliary flow sensors are installed at locations corresponding to each of the vibration modules. The auxiliary flow sensors measure the auxiliary flow at the corresponding location and transmit it to the controller.

[0092] If the measured auxiliary flow rate falls below a preset auxiliary reference flow rate, the above controller generates a certain vibration through the vibration module at the corresponding location. Effects of the invention

[0094] According to the present invention, the flow rate of wastewater is detected through a flow sensor provided in the wastewater pipe, and compressed air can be supplied by protruding a compressed air supply member into the wastewater pipe only when the detected flow rate is greater than or equal to a reference flow rate, thereby effectively disturbing the flow of wastewater inside the wastewater pipe and suppressing the accumulation of sediment or sludge attached to the inner wall of the pipe.

[0095] In addition, according to the present invention, the compressed air supply member is not always protruding inside the sewage pipe, but is protruded only when necessary under the control of a controller, so the flow resistance inside the sewage pipe can be reduced under normal circumstances, and the problem of foreign substances getting stuck or sediment adhering to the compressed air supply member can be mitigated.

[0096] In addition, according to the present invention, since compressed air is supplied into the sewage pipe through the air supply holes of the compressed air supply member, bubble flow and turbulence can be formed inside the sewage pipe, thereby suppressing stagnation of sewage, accumulation of odor components, and adhesion of sediment.

[0097] In addition, according to the present invention, a flexible waterproof tube is configured to surround the connection hole of the sewage pipe and the end of the compressed air supply member, thereby allowing forward and backward displacement of the compressed air supply member while preventing leakage and odor leakage around the connection hole.

[0098] In addition, according to the present invention, since a fan and a deodorizing filter are installed in a ventilation pipe connected to the main body of the septic tank, odors generated inside the septic tank can be reduced through the deodorizing filter before being discharged to the outside, and odorous gases inside the septic tank can be stably exhausted through the operation of the fan.

[0099] In addition, according to the present invention, since the accumulation of sediment inside the sewage pipe and the emission of odors from the septic tank can be reduced simultaneously, odor complaints in multi-unit housing complexes can be reduced, the maintenance cycle of sewage pipes and septic tanks can be extended, and an eco-friendly residential environment can be provided.

[0100] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below. Brief explanation of the drawing

[0102] Figure 1 is a drawing showing the structure of an eco-friendly septic tank structure for a multi-unit housing complex according to the present invention. Figure 2 is a drawing showing the structure of a septic tank according to the present invention. FIG. 3 is a drawing showing the structure of a plurality of compressed air supply units and the protruding operation of a compressed air supply member according to the present invention. FIG. 4 is a drawing showing an example of a configuration in which a flexible waterproof tube is connected between a connecting hole and a compressed air supply member according to the present invention. FIG. 5 is a flowchart showing the driving sequence for fluidly supplying compressed air into the sewage pipe according to the present invention. FIG. 6 is a drawing showing a compressed air supply structure including a backflow prevention valve according to the present invention. FIG. 7 is a detailed diagram showing the structure of a connecting hole cleaning ring according to the present invention. FIG. 8 is a drawing showing the combined structure of a connecting hole cleaning ring and a flexible waterproof tube according to the present invention. FIG. 9 is a drawing showing the structure of an alignment guide part according to the present invention. FIG. 10 is a drawing showing the structure of a compressed air supply unit including a pressure sensing unit according to the present invention. FIG. 11 is a drawing showing a septic tank control structure including an odor detection sensor according to the present invention. FIG. 12 is a drawing showing a sewage pipe lower control structure including a sediment detection sensor according to the present invention. Specific details for implementing the invention

[0103] The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, thereby enabling those skilled in the art to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

[0104] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another, and unless specifically stated otherwise, the first component may also be the second component.

[0105] In the following, the statement that any configuration is placed on the "upper (or lower)" of a component or on the "upper (or lower)" of a component may mean not only that any configuration is placed in contact with the upper (or lower) surface of said component, but also that another configuration may be interposed between said component and any configuration placed on (or below) said component.

[0106] In addition, where it is stated that one component is "connected," "combined," or "connected" to another component, it should be understood that while the components may be directly connected or connected to each other, another component may be "interposed" between each component, or each component may be "connected," "combined," or "connected" through another component.

[0107] Throughout the specification, unless specifically stated otherwise, each component may be singular or plural.

[0108] Singular expressions used in this specification include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "composed of" or "comprising" should not be interpreted as necessarily including all of the various components or steps described in the specification, and should be interpreted as meaning that some of the components or steps may be omitted or additional components or steps may be included.

[0109] Hereinafter, a cable fixing clip according to an embodiment of the present invention will be described in detail with reference to the attached drawings. However, the embodiments described below are merely examples to aid in understanding the present invention, and the scope of the present invention is not limited thereto.

[0111] FIG. 1 is a drawing showing the overall structure of an eco-friendly septic tank structure for a multi-unit housing complex according to the present invention, FIG. 2 is a drawing showing the structure of a septic tank according to the present invention, and FIG. 3 is a drawing showing the structure of a plurality of compressed air supply units and the protruding operation of a compressed air supply member. FIG. 4 is a drawing showing a configuration in which a flexible waterproof tube is connected between a connection hole and a compressed air supply member, and FIG. 5 is a flowchart showing the driving sequence for flexibly supplying compressed air into the sewage pipe. In addition, FIG. 6 to FIG. 12 are drawings showing additional configurations and modified embodiments of the present invention.

[0112] Referring to FIGS. 1 to 3, the eco-friendly septic tank structure for a multi-unit housing complex according to the present invention comprises a household drain pipe (10) that is placed in a building (1) and drains wastewater from each household, a wastewater pipe (100) that is installed in a state of being erected in the building (1) and connected to the end of the household drain pipe (10) and through which wastewater drained from the household drain pipe (10) flows, and a septic tank (200) that is buried underground and connected to the end of the wastewater pipe (100) and stores wastewater drained through the wastewater pipe (100).

[0113] The household drain pipe (10) can be connected to the toilet, kitchen, washbasin, or laundry drainage facilities installed in each household of the multi-unit dwelling. Wastewater generated in each household flows into the wastewater pipe (100) along the household drain pipe (10). The wastewater pipe (100) may be a vertical pipe extending in the vertical direction of the building (1) and is connected to a plurality of household drain pipes (10) to guide the wastewater discharged from each household downward.

[0114] The septic tank (200) is connected to the lower or end portion of the sewage pipe (100) to store or treat wastewater drained along the sewage pipe (100). The septic tank (200) may be buried underground and may be used as a structure for treating or temporarily storing wastewater in a multi-unit housing complex.

[0115] Referring to FIG. 2, the septic tank (200) may include a septic tank body (210), a connecting pipe (211), a ventilation pipe (220), a fan (230), a deodorizing filter (240), a discharge pipe (250), and a discharge pump (251).

[0116] The septic tank body (210) is provided with an internal space in which wastewater is stored. The interior of the septic tank body (210) may be provided with a partition or a guide wall to guide the flow of wastewater or to allow solid matter, sludge, or sediment in the wastewater to settle in stages. A liquid level of wastewater may be formed in the internal space of the septic tank body (210), and sludge or sediment may settle in the lower part.

[0117] A connecting pipe (211) is formed in the septic tank body (210) and is connected to the end of the sewage pipe (100). Accordingly, sewage flowing along the sewage pipe (100) flows into the internal space of the septic tank body (210) through the connecting pipe (211). The connecting pipe (211) may be formed on the upper or side of the septic tank body (210) and may be configured as a straight type, an elbow type, or a flange-connected type depending on the arrangement direction of the sewage pipe (100).

[0118] The ventilation pipe (220) connects the internal space of the septic tank body (210) to the outside. Inside the septic tank body (210), odor components may be generated during the storage, fermentation, or decomposition of wastewater. The ventilation pipe (220) provides an external discharge path to prevent these odor components from remaining excessively inside the septic tank body (210).

[0119] A fan (230) is installed in a ventilation pipe (220) and is driven under the control of a controller (900). When the fan (230) is driven, the odorous gas generated in the internal space of the septic tank body (210) can be forced to flow along the ventilation pipe (220). Accordingly, the odorous gas inside the septic tank body (210) is prevented from stagnating, and the odorous gas can be guided to pass through a deodorizing filter (240).

[0120] A deodorizing filter (240) is installed in the ventilation pipe (220) and removes or reduces odor components generated inside the purification tank body (210). The deodorizing filter (240) may include activated carbon, zeolite, photocatalytic carrier, deodorizing fiber, adsorbent, or a combination thereof. The deodorizing filter (240) may be placed upstream or downstream of the fan (230), and preferably installed so that odorous gas induced by the fan (230) passes through before being discharged to the outside.

[0121] The discharge pipe (250) may be connected to the lower or side of the septic tank body (210). A discharge pump (251) may be installed in the discharge pipe (250). The controller (900) may drive the discharge pump (251) according to the internal water level, storage amount, or discharge conditions of the septic tank body (210) to control the discharge of wastewater stored in the internal space of the septic tank body (210) to the outside.

[0122] Referring to FIGS. 1 and 3, the sewage pipe (100) is provided with a plurality of compressed air supply units (300) arranged at a plurality of locations spaced apart from each other along the longitudinal direction of the sewage pipe (100). The plurality of compressed air supply units (300) may be installed in at least one of the upper, middle, and lower parts of the sewage pipe (100), and may be selectively arranged according to the drainage location of a household in a multi-unit dwelling, the amount of sewage flow, a point where odor may occur, or a point where sediment may occur.

[0123] Each compressed air supply unit (300) includes a compressed air supply member (310), a cylinder (320), an air supply tube (330), and a compressed air supply device (340).

[0124] The compressed air supply member (310) may be a tubular or rod-shaped member for supplying compressed air into the interior of the sewage pipe (100). A flow path (310a) is formed inside the compressed air supply member (310), and an air supply hole (311) is formed around the outer surface or tip of the compressed air supply member (310). The flow path (310a) is in communication with the air supply tube (330), and the air supply hole (311) is in communication with the flow path (310a). Accordingly, the compressed air supplied from the compressed air supply device (340) passes sequentially through the air supply tube (330), the flow path (310a), and the air supply hole (311) and is injected into the interior of the sewage pipe (100).

[0125] Connection holes (101) are formed at multiple locations in the sewage pipe (100). The connection holes (101) are openings formed in the wall of the sewage pipe (100) so that a compressed air supply member (310) can move in and out of the sewage pipe (100). The compressed air supply member (310) can protrude into the sewage pipe (100) through the connection holes (101) or retract toward the connection holes (101).

[0126] The cylinder (320) may be installed on the outer circumference of the sewage pipe (100), and the rod (321) of the cylinder (320) is connected to the rear end of the compressed air supply member (310). The cylinder (320) advances or retracts the rod (321) according to the control of the controller (900), and accordingly, the compressed air supply member (310) moves back and forth along the radial direction of the sewage pipe (100). That is, when the rod (321) of the cylinder (320) advances, the compressed air supply member (310) protrudes into the interior of the sewage pipe (100) through the connection hole (101), and when the rod (321) of the cylinder (320) retracts, the compressed air supply member (310) retracts toward the connection hole (101).

[0127] According to this configuration, the compressed air supply member (310) is not always kept protruding into the sewage pipe (100), but can be protruded into the sewage pipe (100) only when necessary under the control of the controller (900). Therefore, under normal circumstances, the internal flow resistance of the sewage pipe (100) can be reduced, and the problem of sewage or foreign matter getting stuck in the compressed air supply member (310) can be reduced. In addition, when compressed air supply is required, the compressed air supply member (310) can be protruded into the sewage pipe (100) to supply compressed air more directly, so that sediment or sludge attached to the inner wall of the sewage pipe (100) can be effectively disturbed or removed.

[0128] The air supply tube (330) connects the flow path (310a) of the compressed air supply member (310) to the compressed air supply device (340). The air supply tube (330) may be a flexible tube, a pressure hose, a metal pipe, or a resin pipe. The compressed air supply device (340) generates compressed air and supplies it to the air supply tube (330). The compressed air supply device (340) may be composed of an air compressor, a compressed air tank, a blower, or a combination thereof.

[0129] Referring to FIG. 3, the compressed air supply member (310) may have a closed end at the tip protruding into the interior of the sewage pipe (100). Air supply holes (311) may be formed spaced apart from each other along the outer surface of the compressed air supply member (310). At least some of the air supply holes (311) may be formed at an angle to spray compressed air in a direction having a circumferential component with respect to the central axis of the compressed air supply member (310).

[0130] Accordingly, compressed air injected through the air supply hole (311) can be injected to have a rotational component along the inner surface of the sewage pipe (100). Injection of such a rotational component can form a vortex or a spiral flow inside the sewage pipe (100), and can detach organic contaminants, sludge, or debris attached to the inner wall of the sewage pipe (100) or inhibit their attachment. In addition, it can reduce the local stagnation of odor components inside the sewage pipe (100) and disrupt the sewage flow to prevent clogging of the sewage pipe (100).

[0131] Referring to FIG. 4, a flexible waterproof tube (350) is provided between the inner circumference of the connecting hole (101) and the outer circumference of the compressed air supply member (310). The flexible waterproof tube (350) is positioned to wrap around the perimeter of the compressed air supply member (310) and allows for forward and backward displacement of the compressed air supply member (310) while watertightly connecting the connecting hole (101) and the compressed air supply member (310).

[0132] The flexible waterproof tube (350) may include a first fixing part (351), a second fixing part (352), and a corrugated part (353). The first fixing part (351) is fixed to the inner circumference of the connection hole (101) or to the inner circumference of the sewage pipe (100) around the connection hole (101). The second fixing part (352) is fixed to the outer circumference of the compressed air supply member (310). The corrugated part (353) is formed between the first fixing part (351) and the second fixing part (352) and can be extended or bent in the forward and backward directions of the compressed air supply member (310).

[0133] When the compressed air supply member (310) protrudes or retracts into the interior of the sewage pipe (100) through the connection hole (101), the corrugated portion (353) absorbs the displacement of the compressed air supply member (310) by expanding or bending. Accordingly, even when the compressed air supply member (310) repeatedly protrudes and retracts, a watertight state around the connection hole (101) can be maintained. In addition, the flexible waterproof tube (350) can watertightly seal the space between the connection hole (101) and the compressed air supply member (310) to prevent sewage leakage and odor leakage.

[0134] Referring to FIG. 5, the controller (900) can control the operation of the compressed air supply unit (300) based on flow rate information transmitted from the flow rate sensor (910). The flow rate sensor (910) is installed in the sewage pipe (100) to measure the flow rate of sewage drained through the sewage pipe (100) and transmits the measured flow rate information to the controller (900).

[0135] The controller (900) determines whether the flow rate transmitted from the flow sensor (910) is greater than or equal to a preset reference flow rate. If the flow rate is less than the reference flow rate, the controller (900) may maintain a retracted state or a standby state so that the compressed air supply member (310) does not protrude into the interior of the sewage pipe (100). Accordingly, the internal flow resistance of the sewage pipe (100) can be reduced, and unnecessary compressed air supply and operation of the cylinder (320) can be prevented.

[0136] On the other hand, if the flow rate transmitted from the flow sensor (910) is above the reference flow rate and persists for a preset reference time or longer, the controller (900) controls the cylinder (320) to protrude the compressed air supply member (310) into the sewage pipe (100). Subsequently, the controller (900) drives the compressed air supply device (340) to supply compressed air into the sewage pipe (100) through the air supply tube (330), the flow path (310a), and the air supply hole (311).

[0137] Compressed air can be supplied for a preset injection time. When the injection time has elapsed, the controller (900) controls the cylinder (320) to retract the compressed air supply member (310) toward the connection hole (101). Additionally, even if the flow rate decreases below a reference flow rate, the controller (900) can control the compressed air supply member (310) to remain in the retracted state. Through such control, malfunctions caused by temporary changes in flow rate or sensor noise can be prevented, and energy consumption can be reduced by supplying compressed air only when necessary.

[0138] Referring to FIG. 6, a compressed air supply unit (300) according to one embodiment of the present invention may further include a backflow prevention valve (360). The backflow prevention valve (360) may be installed in the flow path (310a) of an air supply tube (330) or a compressed air supply member (310). The backflow prevention valve (360) allows the flow of compressed air from the compressed air supply device (340) toward the compressed air supply member (310), and blocks the backflow of sewage, moisture, odorous gas, or foreign matter from inside the sewage pipe (100) toward the compressed air supply member (310) or the air supply tube (330).

[0139] When the compressed air supply member (310) is protruding into the sewage pipe (100) and the compressed air supply is stopped or the internal pressure of the sewage pipe (100) rises instantaneously, there is a possibility that the sewage, moisture, or odorous gas inside the sewage pipe (100) may flow back toward the compressed air supply device (340) through the flow path (310a) or air supply tube (330) of the compressed air supply member (310). The backflow prevention valve (360) can block such backflow to prevent contamination, malfunction, or odor spread of the compressed air supply device (340).

[0140] Referring to FIG. 7, a connection hole cleaning ring (370) may be provided around a connection hole (101) according to one embodiment of the present invention. The connection hole cleaning ring (370) may be arranged to surround the outer surface of a compressed air supply member (310). The connection hole cleaning ring (370) may be configured to scrape off sludge, debris, moisture, or foreign matter attached to the outer surface of the compressed air supply member (310) when the compressed air supply member (310) is retracted from the inside of the sewage pipe (100) toward the connection hole (101).

[0141] The connection hole cleaning ring (370) may be formed from an elastic material, chemical-resistant rubber, silicone, fluorine-based resin, or wear-resistant resin. The inner surface of the connection hole cleaning ring (370) may make elastic contact with the outer surface of the compressed air supply member (310), and contaminants attached to the outer surface can be removed by scraping when the compressed air supply member (310) retracts. Accordingly, even if the compressed air supply member (310) repeatedly moves in and out around the connection hole (101), the adhesion of contaminants can be reduced, and malfunction of the compressed air supply member (310) or reduction in watertightness can be prevented.

[0142] Referring to FIG. 8, the connection hole cleaning ring (370) may be positioned adjacent to the first fixed portion (351) of the flexible waterproof tube (350). In this case, the connection hole cleaning ring (370) is elastically contacted with the outer surface of the compressed air supply member (310), and can block foreign matter moving along the outer surface of the compressed air supply member (310) when the compressed air supply member (310) is retracted from entering the corrugated portion (353) of the flexible waterproof tube (350).

[0143] The corrugated portion (353) of the flexible waterproof tube (350) is repeatedly stretched or bent to absorb the forward and backward displacement of the compressed air supply member (310). If sludge or debris enters the corrugated portion (353), the deformation of the corrugated portion (353) may be restricted or wear may occur. The connecting hole cleaning ring (370) can prevent contamination of the corrugated portion (353) by preemptively removing foreign matter near the first fixed portion (351), and can improve the durability and watertightness of the flexible waterproof tube (350).

[0144] Referring to FIG. 9, an alignment guide (380) may be installed on the outer circumference of the sewage pipe (100). The alignment guide (380) guides the forward and backward directions of the compressed air supply member (310). The alignment guide (380) may include a fixed bracket (381), a guide hole (382), and a cylinder support (383).

[0145] A fixed bracket (381) is fixed to the outer circumference of the sewage pipe (100). The fixed bracket (381) may be fixed to the outer circumference of the sewage pipe (100) by means of a bolt, clamp, welding, band, or flange connection. A guide hole (382) is formed in the fixed bracket (381) and is configured to allow a compressed air supply member (310) to pass through. The guide hole (382) guides the direction of movement of the compressed air supply member (310) to correspond to the radial direction of the sewage pipe (100). A cylinder support (383) supports the cylinder (320) in a direction corresponding to the radial direction of the sewage pipe (100).

[0146] By means of this alignment guide (380), the rod (321) of the cylinder (320) and the compressed air supply member (310) can be moved in a straight reciprocating motion with respect to the center of the connection hole (101). Thus, eccentric movement of the compressed air supply member (310) can be prevented, and uneven wear of the connection hole (101), flexible waterproof tube (350), connection hole cleaning ring (370), or the compressed air supply member (310) can be reduced. In addition, the alignment guide (380) maintains the positional precision of the compressed air supply member (310) even during repeated operation, thereby improving watertightness and operational reliability.

[0147] Referring to FIG. 10, a pressure sensing unit (390) may be provided in the air supply tube (330) or the flow path (310a) of the compressed air supply member (310). The pressure sensing unit (390) measures the pressure of the air supply tube (330) or the flow path (310a) when the compressed air supply device (340) is operated and transmits it to the controller (900).

[0148] The controller (900) can determine whether the pressure transmitted from the pressure sensing unit (390) is greater than or equal to a preset reference pressure. If the pressure sensing value is greater than or equal to the reference pressure, the controller (900) can determine that the air supply hole (311) or the flow path (310a) is blocked by foreign matter. In this case, the controller (900) can repeatedly drive the compressed air supply device (340) in a pulse manner. Repeated operation in a pulse manner is advantageous for removing foreign matter attached to the air supply hole (311) or the flow path (310a) by intermittently spraying compressed air at high pressure.

[0149] Additionally, if the pressure detection value is excessively high or the pressure does not recover to a normal range even after pulse operation, the controller (900) may stop the operation of the corresponding compressed air supply unit (300) and generate a maintenance notification. Accordingly, blockage of the air supply hole (311), blockage of the flow path (310a), or an abnormal condition of the compressed air supply unit (300) can be detected early, and the stability of the compressed air supply system can be improved.

[0150] Referring to FIG. 11, an odor detection sensor (920) may be provided in the ventilation pipe (220), the septic tank body (210), or the sewage pipe (100). The odor detection sensor (920) detects the concentration of hydrogen sulfide, ammonia, mercaptans, or volatile odor components and transmits it to the controller (900).

[0151] The controller (900) can drive the fan (230) or the compressed air supply device (340) when the odor concentration transmitted from the odor detection sensor (920) is greater than or equal to a preset standard concentration. When the fan (230) is driven, the odor components remaining inside the septic tank body (210) or the ventilation pipe (220) are guided toward the deodorizing filter (240). When the compressed air supply device (340) is driven, compressed air is supplied to the inside of the sewage pipe (100) or the inside of the septic tank body (210), thereby alleviating the stagnation of odor components and allowing the odor components to move toward the ventilation pipe (220) and the deodorizing filter (240).

[0152] In this way, by using the odor detection sensor (920), the fan (230) or the compressed air supply device (340) can be selectively driven when the odor concentration actually rises, thereby effectively reducing odor complaints while reducing unnecessary energy consumption. In addition, if control based on odor concentration is performed together with control based on the flow sensor (910), combined control that considers both the wastewater flow rate and the odor generation status is possible.

[0153] Referring to FIG. 12, a sediment detection sensor (930) may be provided in the lower region of the sewage pipe (100) or in the inlet of the septic tank body (210). The sediment detection sensor (930) detects the height, thickness, or attachment status of sludge, sediment, or debris deposited on the inner surface of the sewage pipe (100) or in the inlet of the septic tank body (210) and transmits it to the controller (900).

[0154] The sediment detection sensor (930) may be composed of an ultrasonic sensor, an optical sensor, a pressure sensor, a contact sensor, or an electrical conductivity sensor. For example, the sediment detection sensor (930) can detect whether sludge is attached to the lower part of the sewage pipe (100) with a thickness greater than a certain amount.

[0155] When the detection value transmitted from the sediment detection sensor (930) is greater than or equal to a preset reference sediment value, the controller (900) may prioritize the operation of the compressed air supply unit (300) located in the lower area of ​​the sewage pipe (100). At this time, the controller (900) may drive the cylinder (320) of the lower compressed air supply unit (300) to protrude the compressed air supply member (310) into the interior of the sewage pipe (100), and drive the compressed air supply device (340) to supply compressed air to the sediment generation area. Accordingly, the sludge or sediment accumulated in the lower area of ​​the sewage pipe (100) or in the inlet of the septic tank body (210) may be disturbed and moved into the interior of the septic tank body (210) by the sewage flow.

[0156] The priority driving control of such sediment detection sensor (930) and lower compressed air supply unit (300) can respond to localized sedimentation conditions that are difficult to identify based solely on flow rate conditions. Therefore, blockage of the sewage pipe (100), odor generation, sediment adhesion, and increased maintenance costs can be prevented in advance.

[0157] As described above, the present invention can selectively supply compressed air according to the flow state of wastewater generated in a multi-unit housing complex by organically combining a household drain pipe (10), a wastewater pipe (100), a septic tank (200), a compressed air supply unit (300), a flow sensor (910), and a controller (900). In addition, by configuring the compressed air supply member (310) to protrude into the interior of the wastewater pipe (100) only when necessary, it is possible to effectively suppress sediment attachment and odor stagnation while reducing internal flow resistance of the wastewater pipe (100).

[0158] In addition, the present invention can improve the watertightness, durability, maintainability, and automatic control of the inlet / outlet compressed air supply structure through a flexible waterproof tube (350), a connection hole cleaning ring (370), an alignment guide part (380), a pressure sensing part (390), an odor detection sensor (920), and a sediment detection sensor (930). Accordingly, the present invention can provide an eco-friendly septic tank structure that can comprehensively improve odor, sedimentation, clogging, leakage, and maintenance problems that may occur in sewage pipes and septic tanks of multi-unit housing complexes.

[0160] Additionally, although not illustrated in the drawings, according to another embodiment of the present invention, vibration modules (400) may be installed at intervals at multiple locations of the sewage pipe (100).

[0161] The vibration modules (400) may be spaced apart from each other along the longitudinal direction of the sewage pipe (100). The installation location of the vibration modules (400) may be set at a location in the sewage pipe (100) where there is a high probability of a decrease in the flow rate of sewage, stagnation of sewage, attachment of sludge, clogging of debris, or accumulation of sediment.

[0162] The installation locations of the above vibration modules (400) can be pre-set in the controller (900). Specifically, the controller (900) can store installation location information, identification information, and control priority information for each of the plurality of vibration modules (400). Accordingly, when a decrease in flow rate or stagnation of sewage is detected at a specific location of the sewage pipe (100), the controller (900) can selectively drive the vibration module (400) corresponding to that location.

[0163] The above vibration module (400) may include a vibration generating part (410) that generates vibration, a vibration transmitting part (420) that transmits the vibration generated from the vibration generating part (410) to the sewage pipe (100), and a module fixing part (430) that fixes the vibration generating part (410) or the vibration transmitting part (420) to the outer surface of the sewage pipe (100).

[0164] The vibration generating unit (410) may include at least one of an eccentric motor, a piezoelectric vibrator, an electromagnetic vibrator, an ultrasonic vibrator, or a solenoid vibrator. The vibration transmitting unit (420) may be composed of a vibration transmitting plate or a vibration transmitting block that is in close contact with the outer surface of the sewage pipe (100), and may be configured to transmit the vibration generated by the vibration generating unit (410) into the interior of the sewage pipe (100) through the pipe wall of the sewage pipe (100). The module fixing unit (430) may include at least one of a band, a clamp, a bracket, a fastening bolt, or an adhesive fixing unit.

[0165] The controller (900) can individually control the vibration generation level of each of the vibration modules (400). Here, the vibration generation level may include at least one of vibration intensity, vibration frequency, vibration duration, vibration generation period, or vibration pattern.

[0166] For example, the controller (900) can drive the vibration module (400) corresponding to a specific location of the sewage pipe (100) at a low vibration intensity when the flow rate decrease is minor, and can drive the vibration module (400) corresponding to that location at a high vibration intensity or pulse vibration pattern when the flow rate decrease is severe or persists for more than a certain period of time.

[0167] Additionally, auxiliary flow sensors (940) may be further installed at locations corresponding to each of the vibration modules (400). The auxiliary flow sensors (940) may be configured to measure an auxiliary flow rate at the corresponding location of the sewage pipe (100) and transmit the measured auxiliary flow rate information to the controller (900).

[0168] The auxiliary flow sensor (940) may be composed of at least one of an ultrasonic flow sensor, an electronic flow sensor, a pressure flow sensor, a differential pressure flow sensor, or a flow velocity detection sensor. The auxiliary flow sensor (940) can directly or indirectly measure the flow rate or velocity of wastewater flowing inside the wastewater pipe (100).

[0169] If the above controller (900) determines that the auxiliary flow rate transmitted from the auxiliary flow rate sensor (940) is less than a preset auxiliary reference flow rate, it can drive a vibration module (400) corresponding to the installation location of the auxiliary flow rate sensor (940) to generate vibration in the sewage pipe (100).

[0170] At this time, the controller (900) can adjust the vibration level of the vibration module (400) by considering the degree of auxiliary flow rate reduction at the location, the duration of the auxiliary flow rate reduction, or the measurement value of another auxiliary flow rate sensor (940) installed at an adjacent location.

[0171] For example, if the auxiliary flow rate measured by one of the auxiliary flow rate sensors (940) decreases to a level lower than the auxiliary reference flow rate, the controller (900) can drive the vibration module (400) at the position corresponding to the auxiliary flow rate sensor (940) to a first vibration level. Additionally, if the state in which the auxiliary flow rate is lower than the auxiliary reference flow rate persists for a preset reference time or if the auxiliary flow rate is significantly lower than the auxiliary reference flow rate, the controller (900) can drive the vibration module (400) to a second vibration level higher than the first vibration level.

[0172] When the above vibration module (400) is driven, the vibration generated from the vibration generating unit (410) is transmitted to the wall of the sewage pipe (100) through the vibration transmission unit (420). The vibration transmitted to the wall of the sewage pipe (100) can cause the sludge, debris, organic sediment, or moisture layer attached to the inner surface of the sewage pipe (100) to vibrate, thereby inducing the sludge or sediment to detach from the inner surface of the sewage pipe (100).

[0173] Additionally, vibrations by the vibration module (400) can cause fine flow disturbances in the sewage inside the sewage pipe (100). Accordingly, it is possible to prevent the sewage from stagnating at specific locations in the sewage pipe (100) and to suppress the adhesion of sediment or sludge to the inner surface of the sewage pipe (100).

[0174] In particular, since the location of the auxiliary flow rate reduction measured by the auxiliary flow rate sensor (940) corresponds to the installation location of the vibration module (400), the controller (900) can selectively apply vibration only to the local location where the flow rate reduction actually occurred. Therefore, compared to a method of uniformly vibrating the entire section of the sewage pipe (100), unnecessary energy consumption can be reduced, and unnecessary vibration transmitted to the building (1) or piping structure can be reduced.

[0175] Additionally, the controller (900) can coordinate the operation of the vibration module (400) with the operation of the compressed air supply unit (300). For example, when the auxiliary flow rate of the auxiliary flow sensor (940) decreases to less than the auxiliary reference flow rate, the controller (900) can first drive the vibration module (400) at the corresponding location to detach sludge or sediment attached to the inner surface of the sewage pipe (100), and then drive the compressed air supply unit (300) installed at the corresponding location or an adjacent location to supply compressed air.

[0176] Accordingly, the sludge, debris, or sediment detached by the vibration module (400) can be dispersed into the internal sewage flow of the sewage pipe (100) by compressed air supplied from the compressed air supply unit (300), or moved toward the septic tank body (210) along the sewage flow. That is, the vibration module (400) performs the role of weakening the adhesion of the sludge or debris, and the compressed air supply unit (300) performs the role of transporting the detached sludge or debris.

[0177] Additionally, the controller (900) can determine which section of the sewage pipe (100) has a decrease in flow rate by comparing auxiliary flow rate information transmitted from a plurality of auxiliary flow rate sensors (940). For example, if the auxiliary flow rate of the upstream auxiliary flow rate sensor (940) is normal and the auxiliary flow rate of the downstream auxiliary flow rate sensor (940) is less than the auxiliary reference flow rate, the controller (900) can determine that partial blockage, sludge adhesion, or sewage stagnation has occurred in the section between the upstream auxiliary flow rate sensor (940) and the downstream auxiliary flow rate sensor (940).

[0178] In this case, the controller (900) can prioritize driving the vibration module (400) placed in the section and, if necessary, drive the compressed air supply unit (300) adjacent to the section or downstream of the section together.

[0179] According to this configuration, the present invention can detect a local decrease in flow rate of the sewage pipe (100) using an auxiliary flow sensor (940) and selectively drive a vibration module (400) corresponding to the location of the decrease in flow rate. Accordingly, sludge, debris, or sediment attached to the inner surface of the sewage pipe (100) can be effectively removed, and clogging of the sewage pipe (100) can be prevented in advance.

[0180] In addition, the present invention can more effectively remove sediment strongly attached to the inner surface of the sewage pipe (100) by linking the pipe wall vibration by the vibration module (400) with the compressed air injection by the compressed air supply unit (300). Accordingly, odor stagnation, sewage stagnation, sludge adhesion, and pipe blockage in the sewage pipe (100) can be suppressed, and the maintenance cycle of the sewage pipe and septic tank structure of the apartment complex can be extended.

[0181] Although the present invention has been described above with reference to the illustrated drawings, the present invention is not limited by the embodiments and drawings disclosed in this specification, and it is obvious that various modifications can be made by a person skilled in the art within the scope of the technical concept of the present invention. Furthermore, even if the effects of the configuration of the present invention were not explicitly described while explaining the embodiments of the present invention above, it is natural to acknowledge that the effects predictable by said configuration should also be recognized. Explanation of the symbols

[0182] 1: Building 10: Household drainage pipe 100: Sewage pipe 101: Connection hole 200: Septic tank 210: Septic tank main body 211: Connector 220: Ventilation pipe 230: Fan 240: Deodorizing Filter 250: Discharge pipe 251: Discharge pump 300: Compressed air supply unit 310: Compressed air supply member 310a: Euro 311: Air supply hole 320: Cylinder 321: Load 330: Air supply tube 340: Compressed air supply unit 350: Flexible waterproof tube 351: 1st Fixed Partition 352: Second Fixed Government 353: Fold 360: Backflow prevention valve 370: Connection hole cleaning ring 380: Alignment guide section 381: Fixing bracket 382: Guidehole 383: Cylinder support 390: Pressure sensor 900: Controller 910: Flow sensor 920: Odor detection sensor 930: Sediment detection sensor

Claims

Claim 1 A household drain pipe positioned in a building and draining wastewater from each household; a sewage pipe installed in the building and connected to the end of the household drain pipe, through which wastewater drained from the household drain pipe flows; and a septic tank buried underground and connected to the end of the sewage pipe, in which wastewater drained through the sewage pipe is stored; wherein the septic tank comprises: a septic tank body having an internal space for storing the wastewater and a connecting pipe connected to the end of the sewage pipe; a ventilation pipe connecting the internal space of the septic tank body to the outside; and a fan installed in the ventilation pipe and driven according to the control of a controller. and a deodorizing filter installed in the ventilation pipe and removing odors generated from the wastewater; wherein the wastewater pipe is provided with a plurality of compressed air supply units arranged at a plurality of positions spaced apart from each other along the longitudinal direction of the wastewater pipe, and each of the plurality of compressed air supply units comprises: a compressed air supply member having air supply holes formed therein and a flow path formed therein communicating with the air supply holes; a cylinder that moves the compressed air supply member back and forth in the radial direction of the wastewater pipe under the control of the controller; an air supply tube connected to the flow path of the compressed air supply member; and a compressed air supply device that supplies compressed air to the air supply tube under the control of the controller.The apparatus is provided with, and connection holes are formed at multiple locations of the sewage pipe, and the compressed air supply member is fitted and connected to each of the connection holes so as to be movable back and forth, and the cylinder is installed on the outer circumference of the sewage pipe, and the rod of the cylinder is connected to the rear end of the compressed air supply member, and as the rod of the cylinder moves back and forth along the radial direction of the sewage pipe, the compressed air supply member protrudes into the interior of the sewage pipe through the connection hole or retracts toward the connection hole, and between the inner circumference of the connection hole and the outer surface of the compressed air supply member, a flexible waterproof tube is provided to surround the perimeter of the compressed air supply member, and the flexible waterproof tube watertightly connects the connection hole and the compressed air supply member while allowing for back and forth displacement of the compressed air supply member, and the sewage pipe is provided with a flow sensor that measures the flow rate of sewage drained through the sewage pipe and transmits it to the controller, and the controller is, the An eco-friendly septic tank structure for a multi-unit housing complex, characterized by: when it is determined that the flow rate transmitted from the flow sensor is greater than or equal to a preset reference flow rate, extending the rod of the cylinder to extend the compressed air supply member into the interior of the sewage pipe, and driving the compressed air supply device to supply the compressed air into the interior of the sewage pipe through the air supply tube, the flow path of the compressed air supply member, and the air supply holes. Claim 2 An eco-friendly septic tank structure for an apartment complex, characterized in that, in claim 1, the compressed air supply member has a closed end portion at a tip portion protruding into the interior of the sewage pipe, the air supply holes are formed spaced apart from each other along the outer surface of the compressed air supply member, and at least some of the air supply holes are formed asymmetrically inclined with respect to the radial direction of the compressed air supply member so as to be configured to inject the compressed air with a rotational component along the inner surface of the sewage pipe. Claim 3 An eco-friendly septic tank structure for an apartment complex according to claim 1, wherein the flexible waterproof tube comprises: a first fixing part fixed to the inner circumference of the connection hole or the inner circumference of the sewage pipe around the connection hole; a second fixing part fixed to the outer circumference of the compressed air supply member; and a corrugated part formed between the first fixing part and the second fixing part and deformed by stretching or bending in the forward and backward direction of the compressed air supply member; wherein the corrugated part is configured to block sewage leakage and odor leakage through the connection hole during the forward and backward movement of the compressed air supply member. Claim 4 ◈Claim 4 was abandoned upon payment of the registration fee.◈ An eco-friendly septic tank structure for an apartment complex, wherein, in Claim 1, the controller controls the cylinder to protrude the compressed air supply member into the interior of the sewage pipe when the state in which the flow rate transmitted from the flow sensor is greater than or equal to the reference flow rate persists for a preset reference time or longer, drives the compressed air supply device for a preset injection time, then controls the cylinder to retract the compressed air supply member toward the connection hole, and controls the compressed air supply member so that it does not protrude into the interior of the sewage pipe when the flow rate decreases to less than the reference flow rate.

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