JP2544711B2 - Flush toilet and sewage treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is suitable for use as a flush toilet and its flush toilet, which is suitable for use as a flush toilet to be installed at a construction site, an event site, or the like. Sewage treatment device

[Conventional technology]

Since the conventional temporary toilets were of the pumping type, the room had a bad odor and was unsanitary.

A flush-type temporary toilet has been proposed in order to reduce the emission of odor and improve hygiene (for example, the actual development 57-
(See Japanese Patent No. 75076).

[Problems to be Solved by the Invention]

However, the above-mentioned flush-type temporary toilet has a water storage tank disposed above the rear wall of the toilet case, in which water is poured from the water storage tank after the toilet to the flush toilet, and the waste is discharged to the toilet tank. Therefore, a large amount of water is required for one use,
In a short period of time, the toilet tank becomes full and the water storage tank becomes empty. Therefore, it is necessary to recollect the waste water from the toilet tank and supply the water in the water storage tank again and again, which is troublesome. In winter, there is a problem that expensive antifreeze must be used to prevent the freezing of water in the water storage tank.

The present invention has been made in view of the above-mentioned problems of conventional flush-type temporary toilets, and instead of the toilet bowl, a three-fluid bed consisting of water, particle carrier and air is generated below the toilet bowl. A three-tank fluidized bed type sewage treatment apparatus suitable for use in a flush toilet and the flush toilet, in which the above problem is solved by providing the sewage treatment apparatus described above and using the water after the sewage treatment for toilet cleaning The purpose is to provide.

[Means for solving the problem]

That is, the first invention of the present application has a toilet bowl and a wastewater treatment device arranged below the toilet bowl, and the wastewater treatment device comprises a tank, a particle carrier housed in the tank, and the tank. It has a blower and an air diffusing tube for blowing air into it to form a three-phase fluidized bed of water, a particle carrier and air.
In order to clean the toilet bowl, the gist is a flush toilet having a pump and a water supply pipe for supplying the treated water in the tank to the toilet bowl.

Further, the second invention of the present application, a tank, a wastewater guide plate for partitioning the inside of the tank into a spiral flow path, a particle carrier accommodated in the tank, and blowing air into the tank,
Start of a spiral flow passage having a blower and an air diffuser which form a three-phase fluidized bed of water, particle carrier and air and generate a spiral flow in the tank, and which is partitioned by the waste water guide plate. The gist of a wastewater treatment apparatus is characterized in that the wastewater to be treated is supplied to the compartment and the treated water is discharged from the terminal compartment of the flow path.

[Action]

In the flush toilet of the present invention having the above-mentioned configuration, waste such as stool and urine from the toilet bowl is directly introduced into the tank of the sewage treatment apparatus thereunder. In the tank, the air diffuser blows air from the blower into the water to form a three-phase fluidized bed of water, air, and particle carrier in the tank. , The material is finely crushed, aerobicly treated, and treated by adsorbing and immobilizing microorganisms on the particle carrier, which is then stored in the tank as it is. Although filth is stored in the tank, it is hygienic because no odor is generated because it has been treated as described above. The pump and water pipe supply the treated water in the tank to the toilet bowl as wash water to wash the toilet bowl at all times. Therefore, it does not require external washing water and can be used for a long period of time without pumping or supplying water. In addition,
As the pump, the use of an air lift pump that uses the air from the blower does not require a separate power source, and even if the particle carrier is dispersed in the water to be sent,
It is preferable because the particle carrier is less likely to be crushed.

Further, in the sewage treatment apparatus of the present invention, the sewage thrown into the start section of the spiral flow passage sectioned by the sewage guide plate,
While being treated by a three-phase fluidized bed of water, air and particle carriers formed by air supplied by an air diffuser, the tank is made to flow in a spiral shape and is moved to the end of the spiral flow path. As a result, a long flow path is formed even in a small-volume tank without causing a stagnant portion in the tank or bypassing untreated wastewater to directly flow into the end section of the flow path. The residence time required for wastewater treatment can be obtained. In this wastewater treatment device, a toilet bowl is arranged above the start section of the spiral flow path, and water is drawn from the terminal section of the flow path to be used as wash water for the toilet bowl. Can be configured. The sewage treatment apparatus of the present invention can be used for other than such a flush toilet.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment in which the present invention is applied to a temporary flush toilet,
FIG. 2 is a front perspective view showing the front wall and a door attached to the front wall, and FIG. The temporary flush toilet, which is generally designated by reference numeral 1, is a toilet shed house 2,
It is composed of a floor 3 at the lower part thereof, a toilet 4 attached to the floor 3, and a sewage treatment device 5 at the lower part thereof, and the whole has an integrated structure and can be transported to a desired place. Toilet warehouse house 2
Is a front wall (not shown) with a door, a rear wall 2A, and left and right walls
It has 2B, 2C and a top plate 2D, which can be made of FRP or metal integrally formed, and FRP is particularly preferable. A ventilation window 2E is provided on each wall. Floor 3
Has a foot rest portion 3A at a high position and a stepped foot portion 3B lowered in front of the foot rest portion 3A, and a Japanese-style dual-purpose toilet bowl 4 is attached to the foot rest portion 3A. This floor 3 is also preferably made of FRP integrally. The toilet 4 is not limited to the Japanese style shown in the figure, but may be of another type, and the shape of the floor 3 may be changed according to the shape of the toilet. Further, when the height from the road surface to the foot portion 3B is high, a stair step stool may be installed in front of the foot portion 3B, if necessary.

As shown in FIGS. 3 to 5, the sewage treatment apparatus 5 is provided with a tank 7 whose upper surface is closed by a foot rest 3A and a foot 3B on the floor. In this tank 7, a spiral wastewater guide plate 8 that divides the inside of the tank into a spiral flow path is erected from the ceiling surface to the bottom surface of the tank 7, and the start partition of the spiral flow path is defined. The toilet bowl 4 is located above (substantially the center of the tank 7), and the end section (one corner of the tank 7) of the flow path is the water pumping section 9. A perforated plate 10 is provided on the water inflow side to the water pumping section 9 to prevent the inflow of large solid matter into the wastewater. It is preferable that the tank 7 and the sewage guide plate 8 are also made of FRP, and the tank can be manufactured by integrally molding the FRP, and then the FRP sewage guide plate can be attached to the tank.

The water pumping section 9 is provided with an air lift pump 12 having a suction port near the bottom surface. The air lift pump 12 is connected to the toilet 4 via a water pipe 13 to supply flush water to the toilet. ing. Toilet warehouse house 2
A blower 14 is provided on the upper surface of the tank 7 projecting to the rear of the rear wall 2A, and an air lift pump 12 is provided via a pipe 15.
It is connected to the. Further, in the tank 7, air diffusers 18a, 18b, 18c having air diffusers (air outlets) 17a, 17b, 17c are provided, and the air diffusers 18a, 18b, 18c are also blower via the pipe 15. Connected to 14. The air diffusers 17a, 17b, 17c blow air into the vicinity of the bottom surface of the tank 7 so that water and the particle carrier 19
A three-phase fluidized bed is formed in which a mixture of air and air (details will be described later) flows, and the mixture is circulated vertically in the tank as indicated by the arrow and a water pumping section 9 is provided from a position below the toilet bowl 4. It is arranged so as to flow in a spiral shape toward.

 Next, a method of using the flush toilet having the above structure will be described.

Prior to the operation of the blower 14, the required minimum amount of water is filled in the tank 7 so that the lower end of the rear opening of the toilet 4 is immersed. Then, a particle carrier 19 made of fine powder having a size of a wood-based activated carbon material of 0.1 to 5 mm, preferably 0.3 to 0.6 mm is dispersed in this water.

At the time of use, the blower 14 is in operation, the air from the blower 14 is supplied to the air lift pump 12, and the air lift pump 12 supplies the water in the tank from the water pumping section 9 to the toilet bowl 4 through the water pipe 13 as washing water. Always wash the toilet bowl. Although the particle carrier 19 is mixed in this water, there is no problem. Further, the air from the blower 14 is blown into the water in the tank 7 through the air diffusion holes 17a, 17b, 17c to keep the water, the air and the particle carrier in a uniform expanded state to form a three-phase fluidized bed. ing. When large and small urine is excreted in the toilet bowl 4, the filth directly flows into the central portion of the tank 7 below the rear opening of the toilet bowl 4. At this time, since the flush water is constantly supplied to the toilet bowl 4 from the water supply pipe 13, all the dirt and toilet paper are automatically introduced into the tank 7 so that the flush operation is not necessary and the flushing noise is constantly generated. Because I am
Has a sound deadening effect. Therefore, there is no fear that the sound of the stool will be heard by an external person, and it is particularly suitable for use by women.

The filth introduced into the central portion of the tank 7 is
While being treated by the three-phase fluidized bed formed in the tank by the air discharged from 17b and 17c, the waste water guide plate 8
As shown by the arrow, the flow path formed by the above flows spirally and naturally flows into the water pumping section 9 to become the treated water in a stationary state. That is, the filth is finely crushed by agitation of water, air, and a particle carrier, aerobically treated, and treated by adsorbing and immobilizing microorganisms on the activated carbon-like particles 19. By using a three-phase fluidized bed, a large amount of highly concentrated sewage can be treated even though it has a small capacity, and the specific surface area of the biofilm increases, so the processing speed also increases and a short time is sufficient. Sewage treatment is performed. Still, the amount of excess sludge generated is small and the influence of temperature is small. Further, since the sewage flows spirally in the tank 7 while being treated, there is no stagnation in the tank and the inside of the tank can be effectively used. Even if the tank volume is small, reliable sewage treatment is possible. Moreover, untreated wastewater does not flow directly into the water pumping section 9.

The treated water that has flowed into the water pumping section 9 and the particle carrier 19 contained therein are pumped up by the air lift pump 12 and supplied to the toilet bowl 4 as wash water. Since the washing water used here is sufficiently treated as described above, it has no bad odor and is sanitary. In addition, the water pumping section 9 has a perforated plate.
Because 10 is provided, large solids do not block the pump. Since the particle carrier used for sewage treatment is usually black, if the inner surface of the toilet bowl is colored black, the wash water in which the black particle carrier is dispersed will not stand out even when flowing through the toilet bowl. It is suitable.

Dirt such as stool and urine that has fallen into the tank 7 is treated as described above and stored in the tank. At this time, since the filth that has fallen into the tank 7 is immediately processed, there is no odor and the like, and it is hygienic even if it is used for a long time. Further, as the flush toilet is used, stool, urine, etc. are sent into the tank 7 together with the wash water. However, as the water for flushing the toilet, new water is not used as in the past, but treated water is circulated and used. Therefore, the amount of water sent to the tank 7 is small, while the amount of water in the tank 7 is constantly evaporating, so that the amount of water in the tank 7 is almost constant.
For example, the amount of water in the tank 7 hardly changes at the frequency of use of 10 people / day, and therefore, continuous use for a long period (for example, about half a year) until the particle carrier deteriorates without pumping or replenishing water. can do. In addition, when the usage frequency is high, the liquid level in the tank 7 may be high, and in that case, the treated water inside the water pumping section 9 may be discharged and treated. Further, when the frequency of use is low, the liquid level in the tank 7 decreases, so it is sufficient to replenish water with time analysis.

In the above embodiment, the toilet 4 is configured to drop the waste almost in the center of the tank 7 of the wastewater treatment device 5. However, the flush toilet of the present invention is not limited to this configuration, and the toilet can be connected to the end of the waste tank 1. The guide plate for guiding the sewage from the filth drop position to the water pumping position is not limited to the spiral shape and may have another shape. However, as in the illustrated embodiment, by using a spiral sewage guide plate, the drop position of the sewage can be set to approximately the center of the tank, and the entire floor below the floor with the toilet bowl 4 in the center is used for sewage treatment. It is preferable because it can be effectively used as a tank. Further, although the above embodiment shows a temporary flush toilet, the flush toilet of the present invention is not limited to the temporary flush toilet, and may be used as a toilet which is permanently installed in a building or a vehicle.

〔The invention's effect〕

As described above, the flush toilet of the present invention is provided with the sewage treatment device using the three-phase fluidized bed under the toilet and configured to circulate the treated water as toilet flush water.
There is no need to use new water for flushing the toilet, not only does the water storage tank used in conventional flush-type temporary toilets become unnecessary, but there is no concern about freezing in winter. Also, although it is a configuration that collects waste in the tank of the wastewater treatment device,
Since no new water is used for cleaning the toilet bowl, the amount of water introduced into the tank is small and it can be used for a long period of time without pumping. Furthermore, since the waste is treated immediately, it is sanitary, and since the three-phase fluidized bed method is used for the treatment of the waste, it is possible to perform a large amount of treatment of highly concentrated wastewater despite its small volume. Since the specific surface area of the biofilm is large, the treatment speed is high, sufficient sewage treatment is performed in a short time, the amount of excess sludge generated is small, and the effect of temperature is small. Moreover, since the toilet and the waste water treatment device can be combined in a compact manner, there is an effect that the entire flush toilet can be downsized.

Thus, when the present invention is applied to a temporary toilet as shown in the embodiments, the toilet can be constructed as an integrated structure like the conventional simple toilets of the pumping-up type, which is easy to transport and install, and is conventional. It is more hygienic than that of the above products and can be used for a long time.

The sewage treatment apparatus of the present invention is provided with a sewage guide plate that divides the inside of the tank into a spiral flow path, forms a three-phase fluidized bed of water, particle carrier, and air in the tank and swirls inside the tank. Since a blower and an air diffuser for blowing air so as to generate a flow of shape are provided, the sewage thrown into the start section of the spiral flow passage divided by the sewage guide plate is treated by the three-phase fluidized bed. However, the tank can be swirled in a swirl shape, there is no stagnant portion in the tank, and the inside of the tank can be effectively used. Even if the tank area is small, reliable wastewater treatment can be performed. It also has the effect that untreated wastewater does not bypass and flow directly into the end section of the flow path.

[Brief description of drawings]

FIG. 1 is a front view showing a temporary flush toilet, which is an embodiment of the present invention, with a front wall and a door attached thereto removed.
2 is a schematic perspective view of the main part, FIG. 3 is a schematic horizontal sectional view of the sewage treatment apparatus of the flush toilet, FIG. 4 is a vertical sectional view thereof, and FIG. 5 is a VV arrow of FIG. FIG. 1 …… Temporary flush toilet, 2 …… Toilet shed house, 3 …… Floor, 4…
… Toilet bowl, 5 …… Sewage treatment device, 7 …… Tank, 8 …… Sewage guide plate, 9 …… Water pumping compartment, 10 …… Perforated plate, 12 …… Air lift pump, 13 …… Water pipe, 14 …… Blower, 15 …… Piping, 17a,
17b, 17c ... Air diffuser, 18a, 18b, 18c ... Air diffuser, 19 ... Particle carrier.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Sekiguchi 7-7 Kukunakajima, Isawa-cho, Higashiyatsushiro-gun, Yamanashi Prefecture (56) References JP 54-142849 (JP, A) Actual 59-38582 (JP) , U) Actual development Sho 59-127794 (JP, U)

Claims (2)

(57) [Claims] 1. A toilet bowl, and a sewage treatment apparatus disposed below the toilet bowl, the sewage treatment apparatus including a tank, a particle carrier contained in the tank, and air in the tank. A blower for forming a three-phase fluidized bed of water, a particle carrier and air, and an air diffuser, and a pump for supplying the treated water in the tank to the toilet bowl for cleaning the toilet bowl; A flush toilet having a water pipe. 2. A tank, a sewage guide plate for partitioning the inside of the tank into a spiral flow path, a particle carrier contained in the tank, and air blown into the tank for water, particle carrier and air. Which has a three-phase fluidized bed and which has a blower and an air diffuser for producing a swirl-shaped flow in the tank, and the waste to be treated is placed in the start section of the spiral-shaped flow passage defined by the wastewater guide plate. A sewage treatment apparatus configured to supply and discharge treated water from an end section of the flow path.