JPH09150175A - Sewage disposal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably perform sewage disposal over a long period of time by supplying a sewage from a stirring tank to a treating tank by interposing a sewage discharge passage provided with a supply means. SOLUTION: A treating tank 12 is connected to a stirring tank 1 by interposing a sewage outlet pipe 13 to which a toilet paper discharged from a toilet, a night soil and a washing water are overflowed after storing temporarily at a J-shaped pipe 3 and in which the mixture is aerated and decomposed preliminary. The sewage is aerated in the treating tank 12 with an air from the third aerating pipe 19. a liq. transferring pipe 14 is opened at a bottom part of the stirring tank 1, a ceiling surface and an inside of a sewage discharge pipe 13, and the second aerating pipe 15 is arranged in the liq. transferring pipe 14. Then, the liq. transferring pipe 14 is connected to the first blower 8 by interposing the second supply pipe 16 and the night soil in the liq. transferring pipe 14 is aerated. In this constitution, when the night soil in the liq. transferring pipe 14 reaches a height of the sewage discharge pipe 13, the night soil is risen in the liq. transferring pipe 14 by a blast from the blower 8 and allowed to pass through the sewage discharge pipe 13 while being aerated with the second aerating pipe 15 flowed into the treating tank 12.

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 night soil and gray water.

[0002]

2. Description of the Related Art As an apparatus of this kind, for example, Japanese Patent Publication No. 58-
Publication No. 15029 (C02F 1/04) is known. In this human waste treatment device, the evaporation type toilet tank is partitioned by a solid-liquid separation wall into a solid-liquid mixing section into which human waste flows and a liquid division section, and the human waste in the solid-liquid separation section overflows from the upper end of the solid-liquid separation wall. However, the urine that has flowed into the liquid compartment and has flowed into the liquid compartment is heated and evaporated by the heater.

[0003]

However, in the conventional structure, toilet paper or the like may adhere to the solid-liquid separation wall if the inflow of human waste from the solid-liquid mixing compartment to the liquid compartment is small. When the inflow of human waste is stopped, the attached toilet paper dries and sticks. Further, the toilet paper adheres to and adheres to the solidified one after another, so that the adhered matter is deposited on the solid-liquid separation wall, and the inflow of human waste from the solid-liquid mixing compartment to the liquid compartment is stopped. The problem arises.

Further, when the flow of night soil into the liquid compartment is stopped, the water level of night soil in the liquid compartment is lowered, and finally undecomposed waste is dried and adhered to the bottom. Even if new waste urine flows in thereafter, this waste does not dissolve in the urine and remains, so it is necessary to remove the fixed waste.

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-mentioned problems is a stirring tank having an inflow port for inflow of sewage, and a treatment tank connected to the inside of the stirring tub via a sewage outflow path. And a supply means for supplying the waste water in the stirring tank to the treatment tank through the waste water outflow route.

By supplying the sewage in the agitation tank to the sewage outflow path by the first means, deposits in the sewage outflow path can be removed and the sewage can be supplied from the agitation tank to the treatment tank. Prevent it from being blocked by deposits.

[0008] A second means for solving the above problems is as follows.
An agitation tank having an inflow port for inflowing the sewage, a treatment tank connected to the agitation tank via a sewage outflow path, and a supply means for supplying the sewage in the agitation tank to the treatment tank via the sewage outflow path. And a control means for controlling the supply means.

By controlling the supply means for supplying the sewage in the stirring tank to the sewage outflow path by the second means, the deposit in the sewage outflow path can be removed and the sewage can be supplied from the stirring tank to the treatment tank. Therefore, the sewage outflow route is prevented from being blocked by sediment.

[0010] A third means for solving the above problems is as follows.
An agitation tank having an inflow port for inflow of sewage, a treatment tank connected to the agitation tub via a sewage outflow path, a sensor for detecting the sewage water level in the sewage tank, and sewage in the agitation tank It is characterized in that a supply means for supplying the treatment tank through the outflow path and a control means for controlling the supply means based on the output of the sensor are provided.

By the third means, the supply means for supplying the wastewater in the stirring tank to the wastewater outflow path is controlled based on the output of the sensor for detecting the wastewater level in the treatment tank, so that the wastewater outflow path is accumulated. Since the wastewater can be supplied from the stirring tank to the treatment tank by removing the substances, the wastewater outflow route is prevented from being blocked by sediment, and the adhered matter is also accumulated due to the wastewater in the treatment tank becoming dry. .

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below based on the human waste processing apparatus shown in FIGS.

Reference numeral 1 is a stirring tank buried in the ground, 2 is a connecting pipe for connecting the stirring tank 1 to a toilet bowl (not shown), and 3 is a J arranged in the stirring tank 1 for connecting with the connecting pipe 2. In the character tube, the human waste discharged from the toilet bowl is temporarily stored in the J-shaped tube 3 through the connecting tube 2 together with the toilet paper. 4
Is a lid that closes the stirring tank 1, and is equipped with a first intake cylinder 5 that supplies outside air into the stirring tank 1.

Reference numeral 6 denotes a first aeration pipe arranged at the bottom of the stirring tank 1, which is connected to a first blower 8 via a first supply pipe 7 so as to aerate the night soil in the stirring tank 1. Therefore, the first aeration pipe 6, the first supply pipe 7 and the first air blower 8 constitute a first aeration device.

Reference numeral 9 denotes a first exhaust pipe connected to the upper portion of the stirring tank 1, which is connected to a second exhaust pipe 23 described later and exhausts gas and the like from the first exhaust pipe 9 and the second exhaust pipe 23. It is connected to the exhaust stack 10. Reference numeral 11 is an exhaust fan installed in the exhaust pipe 10, and includes the first intake pipe 5 and a second exhaust pipe which will be described later.
In order to take in the outside air from the intake cylinder 22, the exhaust amount is set to be larger than the total blown air amount of the first blower device 8 and the second blower device 21 described later.

A treatment tank 12 is buried in the ground, and is connected to the stirring tank 1 through a wastewater outflow pipe 13. Reference numeral 14 denotes a advection tube having an opening inside the stirring tank 1, the top surface, and the inside of the wastewater outflow pipe 13. Reference numeral 15 is a second aeration pipe arranged in the advection pipe 14, and the first blower 8 is provided through a second supply pipe 16.
Is connected to the aeration pipe 14 to aerate the night soil in the advection pipe 14, and the second aeration pipe 15, the second supply pipe 16 and the first blower 8 are connected.
Constitutes a second aeration device.

Air is supplied from the first air blower 8 to the second aeration pipe 15 by opening and closing a solenoid valve 30 which will be described later, which is controlled by a control circuit 29 which will be described later.
Only the aeration device is driven, but when the output from the first water level detection unit 25 described later is input, the solenoid valve 30 is opened by the control of the control circuit 29 to drive the first aeration device and the second aeration device. It is designed to let you.

Reference numeral 17 denotes an electrical equipment storage box disposed above the processing bath 12, which has a large number of intake ports (not shown) formed on the side surface thereof, and the processing bath 12 is closed by a bottom plate. Blower 8, second blower 21 to be described later, first blower 8,
The exhaust fan 11, a second blower 21 to be described later, a heater 24, and the like, and a control unit 18 including a control circuit 29 to be described later are housed.

Reference numeral 19 denotes a third aeration pipe arranged at the bottom of the treatment tank 12, which is connected to the second blower 21 via the third supply pipe 20 so as to aerate the night soil in the treatment tank 12. ing. The third aeration device 19, the third supply pipe 20, and the second blower device 21 constitute a third aeration device.

Reference numeral 22 is a second intake cylinder whose upper part is supported by the bottom plate of the electrical equipment storage box 17 and supplies the outside air into the processing tank 12. twenty three
Is a second exhaust tube connected to the upper part of the processing tank 12 for exhausting gas and the like in the processing tank 12.

Reference numeral 24 denotes a heater disposed in the night soil of the inner bottom of the treatment tank 12, which is disposed on the third aeration pipe 19 to prevent the bottom surface of the treatment tank 12 from being affected by heat. The temperature is maintained at a predetermined temperature for activating the activity of aerobic bacteria, in the range of 30 to 40 degrees Celsius in this embodiment.

Reference numeral 25 is a first water level detection unit arranged in the processing tank 12, and a heater 24 arranged in the processing tank 12 detects a minimum storage water level 26 at which the heater 24 is immersed in the minimum amount of human urine. ing. Reference numeral 27 denotes a second water level detection unit arranged in the treatment tank 12, and detects a storage upper limit water level 28 (in this embodiment, a water level that can be used for about 7 days) slightly lower than the full water level of the urine in the treatment tank 12. It is like this.

Next, the electric circuit of this embodiment will be described with reference to FIG. 29 is a control circuit for inputting the output from the first water level detection unit 25 that detects the lower limit water level 26 of urine in the treatment tank 12 and the second water level detection unit 27 that detects the upper limit water level 28 of urine in the treatment tank 12 Yes, a first blower 8 for aerating the excreted urine in the stirring tank 1 and the advection pipe 14, a second blower 21 for aerating the excreted urine in the treatment tank 12, a heater 24 for maintaining the excrement in the treatment tank 12 at a predetermined temperature, An exhaust fan 11 for exhausting gas and the like in the stirring tank 1 and the processing tank 12 is controlled.

Reference numeral 30 is a solenoid valve for adjusting the amount of air supplied from the first air blower 8 to the second aeration pipe 15. Normally, the solenoid valve 30 is closed, but the first water level detector 25 stores the lower storage water level 26. When this is detected, the solenoid valve 30 is opened for a predetermined time to supply a predetermined amount of air to the second aeration pipe 15. Also, the solenoid valve 30
Is periodically controlled by the control circuit 29 for a short time (in this embodiment, 1
It is controlled for about 30 seconds a day) to drive the second aeration device.

Reference numeral 31 is an alarm device constituted by a buzzer, an indicator and the like arranged in the toilet, and when the second water level detection unit 27 detects the upper limit water level 28 for storing urine in the treatment tank 12, a control circuit is provided.
Based on the output of 29, it is designed to give an alarm notifying that water is full. Reference numeral 32 is an energizing light configured by a display or the like arranged in the toilet, and is for displaying that the human waste treatment device is in operation.

The discharged human waste, together with the toilet paper, passes through the connecting pipe 2 and temporarily accumulates in the J-shaped pipe 3,
Here, when the urine is mixed as the toilet paper and the amount of the human urine increases, the mixed human urine overflows from the J-shaped tube 3 into the stirring tank 1. The excrement collected in the agitation tank 1 is agitated by the air supplied from the first aeration pipe 6 by the drive of the first air blower 8, and oxygen is dissolved in the excrement, and the activity and chemical reaction of aerobic bacteria are performed. The gas such as carbon dioxide and steam generated by preliminarily decomposing urine is forcibly exhausted from the first exhaust pipe 9 by the exhaust fan 11, and the outside air flows into the agitation tank 1 from the first intake pipe 5 along with the exhaust. .

Since the human waste in the stirring tank 1 is stored up to the height of the waste water outflow pipe 13, the human waste collected in the stirring tank 1 is sufficiently pre-decomposed and pre-decomposed until it overflows into the treatment tank 12. The collected excrement overflows when it reaches the height of the sewage outflow pipe 13, and flows into the treatment tank 12.

The sewage flowing into the treatment tank 12 is agitated by the air supplied from the third aeration pipe 19 by driving the second blower 21, and oxygen is dissolved in the sewage so that aerobic bacteria act. The gas such as carbon dioxide and water vapor that are decomposed by the chemical reaction with and are forcedly exhausted by the exhaust fan 11 from the second exhaust pipe 23, and the second intake pipe is accompanied with the exhaust.
Outside air flows into the processing tank 12 from 22.

When the water level in the treatment tank 12 rises and the first water level detection unit 25 detects that the storage lower limit water level is 26 or more, the control circuit 29 controls the heater 24 so that the urine in the treatment tank 12 is favored. The activity of aerobic bacteria is maintained at the optimum temperature, the activity of aerobic bacteria is activated, and the decomposition of urine is further enhanced.

The second aeration device is periodically driven by the control circuit 29 for a short time (about 30 seconds a day in this embodiment), and the second aeration device drives the human waste in the advection tube 14 to flow. It rises in the pipe 14 and vigorously flows into the sewage outflow pipe 13. By this flow, deposits such as toilet paper in the sewage outflow pipe 13 are regularly removed, and the inside of the sewage outflow pipe 13 is prevented from being blocked.

During a long trip, etc., the stirring tank 1 to the processing tank 12
The overflow of human waste may stop for a long period of time, but in such a case, the water level of night soil in the processing tank 12 decreases, and the first water level detection unit
If it detects that 25 is below the lower storage level 26,
Since the control circuit 29 allows the second aeration device for a predetermined period of time to transfer the night soil in the stirring tank 1 into the treatment tank 12 through the wastewater outflow pipe 13 by a predetermined amount, the inside of the treatment tank 12 becomes dry. Prevents adherent deposits.

[0032]

According to the structure of claim 1 of the present invention, the wastewater in the stirring tank is supplied to the wastewater outflow path to remove the deposits in the wastewater outflow path, and the wastewater outflow path is blocked by the deposits. Since this prevents the wastewater from being treated, it is possible to achieve stable wastewater treatment over a long period of time.

According to the second aspect of the present invention, by controlling the supply means for supplying the sewage in the agitation tank to the sewage outflow route, deposits in the sewage outflow route are removed, and the sewage outflow route is deposited. Since it is prevented from being clogged by the sewage, it is possible to achieve stable sewage treatment over a long period of time.

According to the third aspect of the present invention, by controlling the supply means for supplying the wastewater in the agitation tank to the wastewater outflow route based on the output of the sensor for detecting the wastewater level in the treatment tank, Sewage can be supplied from the agitation tank to the treatment tank, and the accumulation of adhered substances due to a shortage of water in the treatment tank is prevented, so that the wastewater can be treated stably over a long period of time.

[Brief description of the drawings]

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

FIG. 2 is the same electric circuit diagram.

[Explanation of symbols]

 1 Stirring tank 12 Treatment tank 13 Sewage outflow pipe 14 Advection pipe 15 Second aeration pipe

Claims (3)

[Claims] 1. A stirring tank having an inflow port for inflowing sewage, a treatment tank connected to the stirring tub via a sewage outflow path, and sewage in the agitation tank being treated through a sewage outflow path. A wastewater treatment device comprising a supply means for supplying. 2. A stirring tank having an inflow port for inflowing sewage, a treatment tank connected to the stirring tub via a sewage outflow path, and sewage in the agitation tank to a treatment tub via a sewage outflow path. A sewage treatment apparatus comprising a supply means for supplying and a control means for controlling the supply means. 3. A stirring tank having an inflow port for inflowing sewage, a treatment tank connected to the stirring tub via a sewage outflow path, a sensor for detecting a sewage water level in the treatment tank, and the stirring tank. A sewage treatment apparatus comprising: a supply unit that supplies the sewage therein to a treatment tank through a sewage outflow path; and a control unit that controls the supply unit based on the output of the sensor.