JPH08206671A - Sewage treatment apparatus - Google Patents

Abstract

PURPOSE: To easily perform piping construction and to enhance the treatment efficiency of sewage by improving air circulating efficiency in a treatment tank by arranging an exhaust port and an air sending cylinder to one space surrounded by the imaginary line passing the center of the treatment tank and the treatment tank when the treatment tank is looked from the upper surface thereof. CONSTITUTION: Excretion is temporarily stored in a J-shaped pipe 3 through a connection pipe 2 and overflows to a stirring tank 1 to be stirred by the air supplied from the first blower 7 connected to a first air supply pipe 5 to be preparatorily decomposed. When excretion reaches the height of an excretion outflow pipe 10, it overflows to a treatment tank 9 to be decomposed by the air supplied from the second blower 15 connected to a second air supply pipe 13. Further, when the excretion reaches a water level detection part 18, a heater 16 is operated and a blower 12 sends air. Since there is a difference in the creeping distance from an air sending cylinder 11 to a second exhaust port 17 and a difference is generated in the arrival time of blown- out air at the time of the looking from the upper surface of the treatment tank 9, a pressure difference is generated in the treatment tank 9 and a convection is generated and exhaustion can be efficiently performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment apparatus for treating human waste and gray water.

[0002]

2. Description of the Related Art As a device of this kind, a human waste treatment device for treating human waste without pumping it is disclosed in, for example, Ukaihei 1-152.
No. 798 (C02F 3/00).
This night soil treatment device connects an air supply pipe having an air outlet into the night soil collected in the treatment tank with a blower, supplies air into the night soil from the blower, and blows air from the air blower tube onto the night soil surface. , Agitating the night soil and oxygenating the aerobic bacteria in the night soil, purifying the night soil by the activity and chemical reaction of the aerobic bacteria in the night soil and converting it into gas such as carbon dioxide and water, and by blowing air from the blower By exhausting the water from the exhaust stack together with a gas such as carbon dioxide as water vapor, there is no need for pumping.

[0003]

However, in the conventional structure, the blower tube and the exhaust port are located at positions opposite to each other on the imaginary line passing through the center of the processing tank when the processing tank is viewed from above. Since the gas such as carbon dioxide generated in the processing tank is efficiently exhausted in the vicinity of the exhaust port, the exhaust efficiency decreases as the distance from the exhaust port increases. In particular, turbulent flow occurs between the blower tube and the inner wall of the processing tank on the side opposite to the exhaust port, and gases such as carbon dioxide are entrained in the turbulent flow and are not convected and exhausted. It has the drawback of poor circulation and poor efficiency of human waste processing.

In addition, there is a drawback that the loss of exhaust gas from the exhaust stack becomes large when a strong wind blows and backflow of odor from the human urine inflow port occurs.

The present invention has been made to solve the above problems, and an object thereof is to provide a sewage treatment apparatus which can be stably used for a long period of time.

[0006]

[Means for Solving the Problems] A first means for solving the above problems is a treatment tank having an inflow port for inflowing sewage, and an air supply pipe having an air outlet for sewage in the sewage water. And a blower that supplies air to the air supply pipe,
An exhaust port for exhausting gas or the like generated from sewage in the treatment tank, and a blower tube having a blower for blowing air to the surface of the sewage in the treatment tank, the exhaust port when the treatment tank is viewed from above. And a blower tube is arranged in one space surrounded by a virtual line passing through the center of the processing tank and the processing tank.

A second means for solving the above problems is
A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the sewage tank, a blower for supplying air to the air supply pipe, and a sewage in the treatment tub An exhaust port for exhausting a gas or the like, an exhaust pipe connected to the exhaust port and having an exhaust fan, and a blower pipe having an opening facing the sewage surface in the treatment tank. The exhaust port and the blower tube are arranged in one space surrounded by an imaginary line passing through the center of the processing tank and the processing tank.

A third means for solving the above problems is
A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the sewage tank, a blower for supplying air to the air supply pipe, and a sewage in the treatment tub An exhaust port for exhausting gas, etc., and a blower tube having a blower for blowing air to the surface of the wastewater in the treatment tank, and the virtual view passing through the exhaust port and the center of the treatment tank when the treatment tank is viewed from above. The blower tube is arranged outside the line.

A fourth means for solving the above problems is
A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the sewage tank, a blower for supplying air to the air supply pipe, and a sewage in the treatment tub An exhaust port for exhausting a gas or the like, an exhaust pipe connected to the exhaust port and having an exhaust fan, and a blower pipe having an opening facing the sewage surface in the treatment tank. The blower tube is arranged outside a virtual line passing through the center of the exhaust port and the processing tank.

A fifth means for solving the above-mentioned problems is as follows.
A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the sewage tank, a blower for supplying air to the air supply pipe, and a sewage in the treatment tub An exhaust port for exhausting gas, etc., and a blower tube having a blower for blowing air to the surface of the wastewater in the treatment tank, and the virtual view passing through the exhaust port and the center of the treatment tank when the treatment tank is viewed from above. The blower tube is arranged outside the line, and the sewage inlet is provided on the side of the longer creepage distance connecting the exhaust port and the blower tube.

A sixth means for solving the above-mentioned problems is as follows.
A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the sewage tank, a blower for supplying air to the air supply pipe, and a sewage in the treatment tub An exhaust port for exhausting a gas or the like, an exhaust pipe connected to the exhaust port and having an exhaust fan, and a blower pipe having an opening facing the sewage surface in the treatment tank. The blower tube is arranged outside the imaginary line passing through the center of the exhaust port and the treatment tank, and the waste water inlet is provided on the longer creepage distance connecting the exhaust port and the blower tube.

[0012]

According to the structure of claim 1, the waste water in the treatment tank is agitated by the air supply from the blower connected to the air supply pipe having the air outlet in the waste water in the treatment tank. It is supplied with oxygen and decomposes waste by the activity and chemical reaction of aerobic bacteria.

Furthermore, there is a difference in the creepage distance from the blower tube to the exhaust port when viewed from the upper surface of the processing tank, and there is a difference in the time for the air blown from the blower tube to reach the exhaust port. Then, convection occurs from the high-pressure zone to the low-pressure zone, and a circulating flow is generated in the treatment tank, which is efficiently exhausted from the exhaust port together with the gas floating on the surface of the wastewater.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, and an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

Further, since the exhaust port and the blower tube are arranged close to each other, piping work can be easily carried out.

According to the structure of claim 2, the waste water in the treatment tank is agitated by the air supply from the blower connected to the air supply pipe having the air outlet in the waste water in the treatment tank. It is supplied with oxygen and decomposes waste by the activity and chemical reaction of aerobic bacteria.

Further, a large amount of gas such as carbon dioxide floating on the surface of the wastewater generated by the decomposition of the wastewater is exhausted from the exhaust stack by the exhaust fan together with the steam, and the air flowing into the processing tank due to the exhaustion is , Is blown from the blower cylinder to the surface of the dirty water.

There is a difference in the creepage distance from the blower tube to the exhaust port when viewed from the top of the processing tank, and there is a difference in the time for the air blown from the blower tube to reach the exhaust port. As a result, convection from the high-pressure zone to the low-pressure zone is generated, and a circulating flow is generated in the treatment tank, which is efficiently exhausted from the exhaust port together with the gas floating on the surface of the wastewater.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, and an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

Further, since the exhaust port and the blower tube are arranged close to each other, piping work can be easily carried out.

According to the third aspect of the invention, the waste water in the treatment tank is agitated by the air supply from the blower connected to the air supply pipe having the air outlet in the waste water in the treatment tank. It is supplied with oxygen and decomposes waste by the activity and chemical reaction of aerobic bacteria.

Further, there is a difference in the creepage distance from the blower tube to the exhaust port when viewed from the top of the processing tank, and there is a difference in the time for the air blown from the blower tube to reach the exhaust port. Then, convection occurs from the high-pressure zone to the low-pressure zone, and a circulating flow is generated in the treatment tank, which is efficiently exhausted from the exhaust port together with the gas floating on the surface of the wastewater.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, and an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

According to the structure of claim 4, the waste water in the treatment tank is agitated by the air supply from the blower connected to the air supply pipe having the air outlet in the waste water in the treatment tank. It is supplied with oxygen and decomposes waste by the activity and chemical reaction of aerobic bacteria.

Further, a large amount of gas such as carbon dioxide floating on the surface of the sewage generated by the decomposition of the filth is exhausted from the exhaust stack by the exhaust fan together with the steam, and the air flowing into the processing tank with the exhaust is , Is blown from the blower cylinder to the surface of the dirty water.

There is a difference in the creepage distance from the blower tube to the exhaust port when viewed from the top of the processing tank, and there is a difference in the time for the air blown from the blower tube to reach the exhaust port. As a result, convection from the high-pressure zone to the low-pressure zone is generated, and a circulating flow is generated in the treatment tank, which is efficiently exhausted from the exhaust port together with the gas floating on the surface of the wastewater.

This air flow causes bubbles such as carbon dioxide and the bubbles covering the surface of the sewage generated by the supply of air into the sewage to be scattered, whereby an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

According to the fifth aspect of the present invention, the waste water in the treatment tank is agitated by the air supply from the blower connected to the air supply pipe having the air outlet in the waste water in the treatment tank. It is supplied with oxygen and decomposes waste by the activity and chemical reaction of aerobic bacteria.

Furthermore, there is a difference in the creepage distance from the blower tube to the exhaust port when viewed from the top of the processing tank, and there is a difference in the time for the air blown from the blower tube to reach the exhaust port. Then, convection occurs from the high-pressure zone to the low-pressure zone, and a circulating flow is generated in the treatment tank, which is efficiently exhausted from the exhaust port together with the gas floating on the surface of the wastewater.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, and an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

Further, a pressure difference is generated in the processing tank, convection occurs from the high pressure area to the low pressure area, and a circulating flow is generated in the processing tank. Therefore, the creeping surface from the blower cylinder in the high pressure area to the exhaust port is generated. A sewage inlet is provided on the side with a long distance to prevent odors from flowing out from the sewage inlet even when the exhaust loss from the exhaust stack becomes large, such as during strong winds.

According to the structure of claim 6, the waste water in the treatment tank is agitated by the air supply from the blower connected to the air supply pipe having the air outlet in the waste water in the treatment tank. It is supplied with oxygen and decomposes waste by the activity and chemical reaction of aerobic bacteria.

Further, a large amount of gas such as carbon dioxide floating on the surface of the sewage generated by the decomposition of the sewage is exhausted from the exhaust stack by the exhaust fan together with the steam, and the air flowing into the processing tank with the exhaust is , Is blown from the blower cylinder to the surface of the dirty water.

There is a difference in the creepage distance from the blower tube to the exhaust port when viewed from the top of the processing tank, and there is a difference in the time for the air blown from the blower tube to reach the exhaust port. As a result, convection from the high-pressure zone to the low-pressure zone is generated, and a circulating flow is generated in the treatment tank, which is efficiently exhausted from the exhaust port together with the gas floating on the surface of the wastewater.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, whereby an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

Further, a pressure difference is generated in the treatment tank, convection occurs from the high pressure zone to the low pressure zone, and a circulating flow is generated in the treatment tank. Therefore, the creeping surface from the blower cylinder in the high pressure zone to the exhaust port is generated. A sewage inlet is provided on the side with a long distance to prevent odors from flowing out from the sewage inlet even when the exhaust loss from the exhaust stack becomes large, such as during strong winds.

[0037]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below in detail with reference to the human waste processing apparatus shown in FIGS.

Reference numeral 1 is a stirring tank which is buried in the ground except for the top, 2 is a connecting pipe for connecting the stirring tank 1 to a toilet bowl (not shown), and 3 is the connecting pipe provided in the stirring tank 1. In the J-shaped pipe connected to 2, the discharged toilet paper and human waste are temporarily stored there through the connecting pipe 2. Reference numeral 4 denotes an intake port having openings in the stirring tank 1 and the atmosphere, and 5 is a first air supply pipe arranged in the stirring tank 1, and a first supply pipe 6 having an air blowing port is provided in the stirring tank. It is located at the inner bottom. 7 is a first for connecting to the air supply pipe and supplying air
The blower 8 is a first exhaust port connected to the stirring tank 1.

Reference numeral 9 denotes a processing tank which is buried in the ground except for the top, and is covered with a heat insulating material (not shown). 1
A 0-human urine outflow pipe connects the side wall of the stirring tank 1 and the side wall of the treatment tank 9 having a longer creepage distance connecting the blower tube 11 and the second exhaust port 17 described later.

Reference numeral 11 denotes a blower tube whose opening is opposed to the surface of human waste in the treatment tank 9 and which is surrounded by a virtual line passing through the center of the treatment tank 9 as seen from the upper surface of the treatment tank 9 and the treatment tank 9, which will be described later. It is located in the same space as the second exhaust port 17 and is located outside the imaginary line passing through the center of the second exhaust port 17 and the processing tank 9. A blower 12 is installed in the blower tube 11 and blows air to the surface of night soil.
Reference numeral 3 denotes a second air supply pipe arranged in the processing tank 9, and a second supply pipe 14 having an air blowing port is located at the bottom of the stirring tank 9.

A second blower 15 is connected to the second air supply pipe 13 and supplies air. The first blower 7 and the second blower 15 are arranged above the processing tank 9, and the first blower 7 and the second blower 15 are provided. The electric components such as the blower 15, the blower 12, the heater 16 and the exhaust fan 20 which will be described later are arranged close to each other to facilitate the maintenance.

Reference numeral 16 denotes a heater disposed in the processing tank 9, which is located on the second supply pipe 14 in order to prevent the tank bottom from being directly contacted with and abnormally heating the tank bottom.
Reference numeral 17 is a second exhaust port provided in the processing tank 9. 18
Is a water level detection unit in the treatment tank 9 for detecting the lower limit storage position and the upper storage limit position of human waste in the treatment tank 9. Reference numeral 19 denotes an exhaust pipe that connects the first exhaust port 8 and the second exhaust port 17 and is erected in the atmosphere.
The exhaust fan 20 has a first blower 7 and a second blower.
The blower 15 and the blower 12 are set to have a larger exhaust volume than the total blown volume.

Next, the electric circuit of this embodiment will be described with reference to FIG. Reference numeral 21 is a control circuit for inputting the outputs from the water level detector 18 and the heater temperature detector 22.
The blower 7, the second blower 15, the blower 12, the heater 16, the exhaust fan 20, and the alarm device 23 are controlled. The alarm device 23 is composed of a buzzer, an indicator arranged in a toilet, etc., and is adapted to give an alarm when the water level detection unit 18 detects the upper limit storage position.

The discharged human waste passes through the connecting pipe 2 and is temporarily accumulated in the J-shaped pipe 3, where the urine is mixed as toilet paper, and when the amount of human waste increases, it is mixed from the J-shaped pipe 3 into the stirring tank 1. It fits and urine overflows. The human waste collected in the agitation tank 1 is agitated by the air supply from the first blower 7 connected to the first air supply pipe 5 and is supplied with oxygen, and is polluted by the activity and chemical reaction of aerobic bacteria. The carbon dioxide and water vapor generated by preliminarily decomposing the gas are forcedly exhausted from the first exhaust port 8 by the exhaust fan 20.

Since the agitation tank 1 is stored up to the height of the human waste urine outflow pipe 10 provided on the side wall of the agitation tank 1, the human sewage collected in the agitation tank 1 is preliminarily decomposed until it overflows into the treatment tank 9. The sufficiently pre-decomposed human waste overflows when it reaches the height of the human waste outflow pipe 10 and flows into the treatment tank 9.

The sewage flowing into the treatment tank 9 is supplied with air from the second blower 15 connected to the second air supply pipe 13 to supply oxygen to the sewage, and decomposed by the activity and chemical reaction of aerobic bacteria. .

Further, the pre-decomposed human waste is the water level detection unit 1
When the storage lower limit position of 8 is reached, the heater 16 is controlled to maintain the urine in the treatment tank 9 at the optimum temperature for the activity of aerobic bacteria, and the blower 12 is controlled according to the water level of the urine to blow air from the urine surface. I do. There is a difference in the creepage distance from the blower tube 11 to the second exhaust port 17 when viewed from the upper surface of the processing tank 9, and the air blown out from the blower tube 11 has the second exhaust port 17
Since there is a difference in the time to reach, a pressure difference is generated in the treatment tank 9, convection from the high-pressure zone to the low-pressure zone is generated, and a circulating flow is generated in the treatment tank 9 and drifts on the surface of the wastewater. The gas is efficiently exhausted from the second exhaust port 17 together with the gas.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, so that an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

Further, since the urine outflow pipe 10 is connected to the side of the high pressure zone, which has a long creepage distance from the blower tube 11 to the second exhaust port 17, the treatment tank is formed by convection from the high pressure zone to the low pressure zone. Circulating flow occurs in 9 and human waste outflow pipe 1
In 0, since the air flows from the stirring tank 1 toward the processing tank 9,
Even when the loss of the exhaust gas from the exhaust pipe 19 during a strong wind becomes large, it is possible to prevent the odor in the stirring tank 1 and the processing tank 9 from flowing backward through the connecting pipe 2 and flowing out.

During a long trip or the like, the inflow of the pre-decomposed human waste into the treatment tank 9 is temporarily stopped. In such a case, the water level detection unit 18 in the treatment tank 9 detects the storage lower limit position, The power of the blower 12 is turned off by the control of the control circuit 21 to prevent the drop in the level of human waste. Further, when the temperature detecting unit 22 of the heater 16 is exposed from human waste, the heat from the heater 16 is directly detected, and the heater 16 is controlled by the control circuit 21.
The power source is turned off to prevent abnormal heating and suppress the evaporation of night soil in the processing tank 9.

Further, even when the water level of human waste is below the storage lower limit position, the supply of air from the second blower 15 maintains the activity and chemical reaction of the aerobic bacteria and continues the decomposition.

In this way, odor can be prevented from flowing out, and human waste can be decomposed efficiently so that it can be used stably for a long period of time.

In the first embodiment, the stirring tank and the processing tank are provided, but the stirring tank may be omitted and the discharged human waste directly flows into the processing tank.

FIG. 4 shows a second embodiment of the present invention, in which the blower 12 described in the first embodiment is omitted and the blower tube 11 is provided so as to be closer to the urine surface.

In this structure, the human waste which has been sufficiently decomposed in the stirring tank 1 flows into the processing tank 9 and is stirred by the air supply from the second blower 15, and is decomposed by the activity and chemical reaction of aerobic bacteria. To be done.

Further, when the pre-decomposed urine reaches the storage lower limit position of the water level detection unit 18, the exhaust fan 20 is controlled to generate a large amount of carbon dioxide generated on the surface of the human urine by decomposition of the human urine. The air exhausted from the exhaust pipe 19 by the exhaust fan 20 together with the water vapor, and the air that has flowed into the processing tank due to the exhaust is blown out from the blower pipe to the surface of the dirty water.

From the top of the processing tank 9, the blower tube 11 to the second
Since there is a difference in the creepage distance to the exhaust port 17 and a difference in the time for the air blown from the blower tube 11 to reach the second exhaust port 17, a pressure difference occurs in the treatment tank 9 and the high pressure zone Convection to the low-pressure zone is generated, and a circulating flow is generated in the treatment tank 9, and it is efficiently exhausted from the second exhaust port 17 together with the gas floating on the surface of the wastewater.

By this air flow, bubbles covering the surface of the sewage generated by the air supply to the sewage and gas such as carbon dioxide are scattered, whereby an aerobic bacterium is killed in an oxygen-deficient state. In addition to preventing the above, a large amount of oxygen is supplied to the entire surface from the surface of the sewage, and the activity and chemical reaction of the aerobic bacteria are activated to further promote the decomposition of the sewage.

[0059]

As described above, according to the first aspect of the present invention.
According to the structure of claim 2, since the exhaust port and the blower tube are arranged close to each other, it is possible to easily perform the piping work, and at the same time, due to the pressure difference generated in the processing tank, the air in the processing tank is changed. Since the circulation efficiency is improved, the sewage treatment efficiency is improved, and there is an effect that it can be used stably for a long period of time without pumping or draining.

According to the third and fourth aspects of the present invention, the pressure difference generated in the treatment tank improves the circulation efficiency of the air in the treatment tank, thereby improving the wastewater treatment efficiency and pumping. There is an effect that it can be used stably for a long period of time without draining or draining.

According to the fifth and sixth aspects of the present invention, odor is prevented from flowing out due to the pressure difference generated in the processing tank, and the air circulation efficiency in the processing tank is improved. As a result, the efficiency of sewage treatment is improved, and there is an effect that it can be used stably for a long period of time without pumping or draining.

[Brief description of drawings]

FIG. 1 is a side sectional view of a first embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is the same electric circuit diagram.

FIG. 4 is a side sectional view of a second embodiment of the present invention.

[Explanation of symbols]

 9 Treatment Tank 11 Blower 12 Blower 13 Second Air Supply Pipe 15 Second Blower 17 Second Exhaust Port 19 Exhaust Cylinder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takehiko Takimoto 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (6)

[Claims] 1. A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the treatment tank, and a blower for supplying air to the air supply pipe.
An exhaust port for exhausting gas or the like generated from sewage in the treatment tank, and a blower tube having a blower for blowing air to the surface of the sewage in the treatment tank, the exhaust port when the treatment tank is viewed from above. A sewage treatment apparatus characterized in that a blower tube and a blower tube are arranged in one space surrounded by a virtual line passing through the center of the treatment tank and the treatment tank. 2. A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the treatment tank, and a blower for supplying air to the air supply pipe.
An exhaust port for exhausting gas or the like generated from dirty water in the treatment tank, and an exhaust pipe connected to the exhaust port and having an exhaust fan,
A blast tube having an opening facing the sewage surface in the treatment tank, and the exhaust port and the blast tube when viewed from the top of the treatment tank are surrounded by a virtual line passing through the center of the treatment tank and one of the treatment tanks. A sewage treatment device characterized by being placed in a space. 3. A treatment tank having an inlet for inflowing sewage, an air supply pipe having an air outlet in the sewage in the treatment tank, and a blower for supplying air to the air supply pipe.
An exhaust port for exhausting gas or the like generated from sewage in the treatment tank, and a blower tube having a blower for blowing air to the surface of the sewage in the treatment tank, the exhaust port when the treatment tank is viewed from above. A sewage treatment apparatus, wherein the blower tube is arranged outside a virtual line passing through the center of the treatment tank. 4. A treatment tank having an inlet for inflowing sewage, an air supply pipe having an air outlet in the sewage in the treatment tank, and a blower for supplying air to the air supply pipe.
An exhaust port for exhausting gas or the like generated from dirty water in the treatment tank, and an exhaust pipe connected to the exhaust port and having an exhaust fan,
A blower tube having an opening opposed to the surface of the waste water in the treatment tank, and the blower tube is arranged outside a virtual line passing through the exhaust port and the center of the treatment tank when the treatment tank is viewed from above. Sewage treatment equipment to be. 5. A treatment tank having an inflow port for inflowing sewage, an air supply pipe having an air outlet in the sewage in the treatment tank, and a blower for supplying air to the air supply pipe.
An exhaust port for exhausting gas or the like generated from sewage in the treatment tank, and a blower tube having a blower for blowing air to the surface of the sewage in the treatment tank, the exhaust port when the treatment tank is viewed from above. A sewage treatment apparatus characterized in that the blower tube is arranged outside of an imaginary line passing through the center of the treatment tank, and the sewage inlet is provided on the longer creepage distance connecting the exhaust port and the blower tube. 6. A treatment tank having an inlet for inflowing sewage, an air supply pipe having an air outlet in the sewage in the treatment tank, and a blower supplying air to the air supply pipe.
An exhaust port for exhausting gas or the like generated from dirty water in the treatment tank, and an exhaust pipe connected to the exhaust port and having an exhaust fan,
A blower tube having an opening opposed to the surface of the sewage in the treatment tank, and the blower tube is arranged outside the imaginary line passing through the exhaust port and the center of the treatment tank when the treatment tank is viewed from above, A sewage treatment apparatus, characterized in that the sewage inlet is provided on the side with a long creepage distance connecting the mouth and the blower tube.