JPH08260540A - Toilet - Google Patents

Abstract

PURPOSE: To not only reuse a drain but also effectively utilize living microorganism for decomposing dirty materials by circulating the drain from a sewage purifier while contacting with a material forming a microorganism supplying source. CONSTITUTION: A toilet 1 has a toilet bowl part 2 for receiving raw sewage; a sewage purifier 3 for purifying a water W containing the raw sewage from the toilet bowl part 2; a holding body housing part 4 for housing a microorganism holding body which holds living microorganisms and makes contact with the water W supplied from the sewage purifier 3, thereby mixing the living microorganisms into the water W; and a circulating passage 6 for mutually connecting the toilet bowl part 2, the sewage purifier 3 and the holding body housing part 4, and passing and circulating the water W in this order; and a pump 7. Since the water W from the sewage purifier 3 is circulated and used while it is brought into contact with the microorganism holding body, not only the drain can be reused, but also the microorganisms contained in the water W can be effectively utilized for decomposition of dirty materials.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet provided with a septic tank.

[0002]

2. Description of the Related Art In conventional toilets, it is widely practiced to purify sewage discharged from the toilet using a septic tank. In the septic tank, the solid matter contained in the wastewater is first precipitated, and then the microorganisms are caused to act on the wastewater by an appropriate microbial source (such as biofilm or activated sludge) to decompose the pollutants and disinfect with chlorine. After that, it is discharged as sewage.

[0003]

In the above-mentioned conventional toilet, since all purified water is discharged as sewage, not only fresh water is used for washing each time, but also microorganisms for decomposing contaminants. Since the generation source and the microorganisms grown in the septic tank were also discharged at the same time, there was much waste.

The object of the present invention is to not only enable the reuse of waste water by circulating the waste water from the septic tank in contact with the substance serving as a microorganism source, but also to decompose the polluted substance. It is to provide a toilet that can effectively use microorganisms.

[0005]

Means for Solving the Problems and Actions / Effects In order to solve the above-mentioned problems, the toilet of the present invention comprises a toilet part for receiving human waste, and a septic tank for purifying water containing human waste from the toilet part, By holding the live microorganisms in contact with the water supplied from the septic tank, a microbial carrier that mixes the live microorganisms in the water, a holder housing unit that houses the microbial carrier, and a toilet unit, It is characterized in that the septic tank and the holding body accommodating portion are connected to each other, and that a circulation passage and a liquid feeding means for circulating and circulating water in this order are provided.

[0006] The microbial carrier that holds the microorganisms is composed of substances necessary for keeping the microorganisms alive, such as water and nutrients, and substances that maintain the shape of the carrier itself. While not capturing and maintaining the microorganisms, it serves to release the microorganisms captured by contact with the liquid into water through the surface. Here, the "living state" includes a state in which a microorganism temporarily suspends its life activity due to a low water content in the holder or exposure to a low temperature. The microorganisms to be retained in the holder may be contained in the forming material before the holder is molded or may be allowed to enter the holder after molding.

[0007] The above-mentioned holder, when brought into contact with water, mixes the microorganisms in a living state. At this time, the microorganisms may grow in the holder or in the circulating water while consuming the constituents of the holder and the substances in the water to be contacted.

Since the toilet of the present invention is provided with the above-mentioned structure and the waste water from the septic tank is circulated and used while being brought into contact with the above-mentioned microorganism holder, not only the waste water can be reused. Since the microorganisms contained in the waste water are circulated together with water while being supplemented in amount by migration or growth from the microorganism holder, they can be utilized without waste for decomposing the contaminants.

As the holder, one containing mainly humus can be used. In this case, microorganisms involved in the formation of humus (for example, actinomycetes, fungi such as fecal bacteria, yeasts, etc., hereinafter referred to as humus-forming microorganisms) are used as the microorganisms retained by the carrier. However, other microorganisms may be added depending on the purpose. In any case, since the humus-forming microorganisms are predominantly mixed in the circulated water, a situation suitable for decomposing organic contaminants such as human waste and manure is created.

As the humus, one containing a weakly acidic low molecular weight substance such as fulvic acid or humic acid or an iron complex thereof can be used, and one containing fulvic acid is particularly preferably used. Since these substances contained in the humus dissolve in water to lower the pH, even if anaerobic microorganisms (for example, Escherichia coli and various pathogenic microorganisms) are mixed in the liquid, their growth can be suppressed. In particular, when the low molecular weight substance is an iron complex, the reaction of generating active oxygen is promoted as described in JP-A-6-39397, so that the anaerobic bacteria can be propagated. It can be suppressed more effectively. Here, the content of the weakly acidic low-molecular-weight substance in the microbial support is adjusted within a range in which the above effects are not insufficient, and for example, 5% by weight or more is suitable.

As the holder, one obtained by molding the above humus together with a caking substance such as clay mineral into a pellet shape can be used. This enhances the ability of the holder to maintain its shape in water, improves the sustainability of the release of microorganisms and humus, and extends the life of the holder. As such a microorganism carrier, for example, EZ from Enzyme Co., Ltd.
Humic pellets sold under the trade name -901 can be used.

Here, an aeration mechanism for supplying gas such as air or oxygen to the microorganism holder to aerate the microorganism holder can be provided in the holder accommodating portion. As a result, the activity or growth of microorganisms in the circulating water is activated, and the decomposition of dirt substances contained in the water is promoted.

The toilet of the present invention can be constructed as a flush structure by storing the water from the holding body accommodating section and providing a storage tank for supplying the stored water to the toilet section.

Further, the septic tank may be provided with a settling chamber for settling solid matter contained in water flowing in from the toilet part. Further, the septic tank can be provided with a contact aeration chamber. This contact aeration chamber is provided with an aeration mechanism for accommodating the contact material and supplying a gas such as air or oxygen to the contact material to aerate the contact material. A biofilm is formed on the surface of the contact material, and the biofilm is brought into contact with water, and the microorganisms contained in the biofilm act to decompose the soil components contained in the water. As a result, the decomposition of the contaminants in the septic tank can be promoted.

In the toilet of the present invention, the toilet part, the septic tank, the holding part accommodating part, the circulation passage, and the liquid feeding means are integrally incorporated in the main body, and the whole can be formed so as to be movable.
In this case, the septic tank is provided below the toilet section. As a result, the toilet can be easily installed even in a place where there is no facility for water supply or drainage, and the installation location can be changed easily. Here, casters may be provided on the main body, and the toilet can be moved more easily.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 conceptually shows an example of the toilet of the present invention. The toilet 1 includes a toilet part 2, a septic tank 3, a holder housing part 4 for housing a microorganism holder, a storage tank 5 for storing water from the holder housing part 4, and the like. The toilet part 2, the septic tank 3, the holder housing part 4, and the storage tank (hereinafter, also simply referred to as tank) 5 are connected in this order by a circulation passage 6 formed of a steel pipe or the like, and are held together with the septic tank 3. A pump 7 serving as a liquid feeding means is provided between the body accommodating portion 4 and water so as to circulate in the direction of the arrow in the drawing. Here, the septic tank 3 has a wall made of concrete, a steel plate, or the like, and is located below the toilet part 2 by being buried in the underground, for example.

The toilet part 2 can be made of ceramics, plastic, or metallic material such as stainless steel,
For example, it is configured as a flush toilet bowl in which water in the storage tank 5 is discharged from the rear inlet 2a and human excrement or the like is discharged from the outlet 2b formed in the lower front portion.

Since the inside of the septic tank 3 is partitioned by the partition walls 3a and 3b, the settling chamber 8, the contact aeration chamber 9 and the second settling chamber 10 are formed in this order from the side close to the toilet part 2. In addition, a disinfection chamber 11 is formed in the upper part of the second precipitation chamber 10 and is partitioned by a wall portion 3c and a bottom portion 3d, and a chlorine source 11a such as a solid chlorine agent is accommodated inside the disinfection chamber 11. A circulation passage 6 that communicates with the holding body housing portion 4 communicates. Here, the water W in the septic tank 3 overflows from the settling chamber 8 to the contact aeration chamber 9 on the upper side of the partition 3a, so that the water W from the contact aeration chamber 9 to the second settling chamber 10 is located below the partition 3b. By passing through the provided communication portion 3d, the wall portion 3c is further provided from the second precipitation chamber 10 to the disinfection chamber 11.
By overflowing the upper side of each, they are made to flow respectively.

In the contact aeration chamber 9, a contact material support portion 9a whose wall portion is made of liquid mesh by a wire mesh or the like is held in a suspended form, and a large number of contact materials 12 made of plastic or the like are provided inside thereof. Is housed. The contact material 12 can be formed in various shapes. For example, as shown in FIG.
It is possible to open the side 2a and allow the water W to flow inside, and to form the side wall portion 12b into a stepped tubular body. Further, the contact aeration chamber 9 is provided with an aeration mechanism 13. The aeration mechanism 13 faces the outer side surface of the support portion 9a, and ejects air toward the contact material 12 housed inside, and the air ejection portion 13a.
The aeration pump 13b for supplying air to a is provided.

As shown in FIG. 3, the holder accommodating portion 4 is a pressure vessel made of, for example, steel or plastic,
It has a main body 4a and a lid 4b fixed to the upper opening of the main body 4a with a bolt 4c or the like to close the main body 4a. Inside the holding body housing portion 4, one or more holding body cases 14 that are liquid-permeable by a mesh, a filter, a perforated plate, or the like are housed, and inside the holding body housing portion 4, for example, humus pellets or the like are formed. A microorganism carrier (hereinafter, also simply referred to as a carrier) 15 is filled. The holder case 14 is
The flange portion 14a formed on the upper edge portion is supported in a suspended form on the inner edge upper portion of the main body 4a, and the water W flows in from the inflow port 4d formed in the lid portion 4b.
After contacting the holding body 15 in the holding body case 14, the main body 4
It is configured to flow out from a discharge port 4e provided in the lower part of a. An aeration mechanism 16 is provided below the holder case 14. The aeration mechanism 16 includes an air ejection unit 16a that ejects air from the ejection port 16b, an aeration pump 16c that sends air to the air ejection unit 16a, and the like. Air jet 1
As shown in FIG. 4, 6a can be formed, for example, in the shape of a hollow ring.
b may be provided to blow air inward or upward.

Returning to FIG. 1, a manual valve 17 for discharging the water in the tank 5 into the toilet portion 2 is provided in the circulation passage 6 connecting the storage tank 5 and the toilet portion 2. Also,
A liquid level detection unit 18 such as a liquid level sensor is provided in the tank 5, and a circulation passage 6 connecting the holder housing unit 4 and the storage tank 5, and a circulation passage 6 connecting the holder housing unit 4 and the pump 7. Solenoid valves 19 and 2 are provided near the pump 7 of
0 is provided. A return pipe 21 and a relief valve 22 are provided between the electromagnetic valve 20 and the pump 7 for returning the water in the portion of the circulation passage 6 between the two to the septic tank 3. These solenoid valves 19 and 20 and the relief valve 22 are connected to the control unit 23 together with the liquid level detection unit 18 in the tank 5, and are opened / closed appropriately based on whether or not the liquid level detection unit 18 detects the liquid level. It has become so.

The operation of the toilet 1 will be described below.
When the manual valve 17 is opened after the toilet part 2 is used, the water W stored in the storage tank 5 is discharged into the toilet part 2 through the inflow port 2a, and human waste or the like is pushed out from the discharge port 2b into the septic tank 3. The water W that has flowed into the septic tank 3 causes the solid matter S such as toilet paper and feces to settle in the settling chamber 8, and the partition wall 3
a is overflowed and flows into the contact aeration chamber 9. Here, the water W flowing in contains the microorganisms mixed by contact with the microorganism holder 15 (FIG. 3), and these adhere to the surface of the contact material 12 to form a biofilm, and the aeration mechanism 1
While contacting the water W while receiving the aeration of air by 3, the contaminants are decomposed. After that, the water W flows into the second precipitation chamber 10 through the communication portion 3d below the partition wall portion 3b. The solid matter S, which is composed of the residue of decomposed contaminants, is stored in the second settling chamber 1.
Deposit at the bottom of 0. In this way, the water W from which the contaminants have been removed overflows the wall portion 3c, flows into the disinfection chamber 11, is disinfected by chlorine from the chlorine generation source 11a, and flows out to the pipeline 6. Further, the solid matter S in the settling chamber 8 is water W
It may be gradually decomposed and converted into harmless sediments such as compost by the action of microorganisms therein.

Here, the water W in the storage tank 5 is stored in the toilet unit 2.
When the liquid level L drops and the liquid level detection unit 18 no longer detects it, the control unit 23 receives this and the solenoid valve 1
9 and 20 are opened and the pump 7 is operated to pump up the disinfected water W from the septic tank 3 and send it to the holding body accommodating portion 4. Then, the water W comes into contact with the microorganism holder 15 to mix the living microorganisms therein, and then flows into the storage tank 5.
Then, when the liquid level detection unit 18 detects the liquid level L, the control unit 23 stops the pump 7 and closes the electromagnetic valves 19 and 20, and the circulation in the state where the holding body housing unit 4 is filled with water W. To stop. The water W stored in the tank 5 will be repeatedly used for cleaning in the same manner. In addition, the solid matter S deposited in the precipitation chamber 8 and the second precipitation chamber 10
Are appropriately removed by suction or the like. Further, in order to prevent the water level in the septic tank 3 from decreasing, the water supply port 26 may be provided so that the water W can be replenished.

According to the above structure, the water W flows in the circulation passage 6 only when the water in the tank 5 flows out and the liquid level L is lowered. However, the manual valve 17 may be omitted, and the water W from the holder housing section 4 may be constantly circulated through the toilet section 2. In this case, the storage tank 5 may be omitted if the flow rate of the pump 7 is sufficiently high. Further, the manual valve 17 may be an electromagnetic valve that is automatically opened and closed by the control unit 23. On the other hand, as shown by the alternate long and short dash line in the figure, it is also possible to provide a bypass conduit 28 that is opened and closed by the solenoid valve 27 and directly connects the holding body housing 4 and the septic tank 3. In this case, when the water W in the tank 5 flows out and the liquid level L drops, the electromagnetic valve 27 is closed, while when the tank 5 is full, the electromagnetic valve 20 is opened and the pump By closing the solenoid valve 19 while operating 7 and opening the solenoid valve 27 instead, the water W can be circulated between the septic tank 3 and the holding body accommodating portion 4 without passing through the toilet unit 2. .

When the amount of the microorganism holder 15 accommodated in the holder accommodating portion 4 can be increased and a sufficient amount of microorganisms can be transferred into the circulating water W, the contact aeration chamber 9 in the septic tank 3
Can be omitted. On the contrary, another microbial source 29 composed of the microbial holder 15 and the like is provided in the contact aeration chamber 9.
Can also be provided. In addition, the disinfection chamber 11 can be omitted when the amount of harmful microorganisms present in the circulating water W can be sufficiently reduced by the action of the humus-forming microorganisms.

(Embodiment 2) FIG. 5 shows an example of the toilet of the present invention which is constructed so as to be movable in its entirety. The toilet 51 has, for example, a box-shaped lower accommodating portion 52a and a main body portion 52 composed of an upper accommodating portion 52b provided in an upright form at the upper rear portion thereof, and the lower accommodating portion 52a has a toilet seat
The toilet unit 2 having c, the septic tank 3 and the pump 7 located below the toilet unit 2 are provided in the upper accommodation unit 52b, and the holding unit accommodation unit 4 is provided.
And the storage tanks 5 are integrally integrated therebelow. A caster 54 is provided at the bottom of the lower housing portion 52a. The toilet seat 2c is provided so as to be able to open and close with respect to the toilet part 2 by a hinge or the like (not shown).

The settling chamber 8 of the septic tank 3 has a lower accommodating portion 52a.
The drawer part is formed so that it can be taken in and out from the front side. Further, the suction port 7b of the pump 7 enters the second settling chamber 10 and a filter 7a is provided at the tip thereof. Then, the pump 7 sucks the water W in the second settling chamber 10 and pushes the water W up through the circulation passage 6 to the holding body housing portion 4 housed in the upper housing portion 52b. An electromagnetic valve 60 that is opened and closed by a switch 53 provided in the upper housing portion 52b is provided between the storage tank 5 and the toilet portion 2. Further, as in the first embodiment, a solenoid valve 19 is provided between the holding body housing 4 and the storage tank 5, and a return pipe 21 and a relief valve 22 are provided between the pump 7 and the holding body housing 4. Provided and storage tank 5
Based on the signal from the liquid level detection unit 18 provided inside,
The control unit 23 can be opened and closed as appropriate. No contact aeration chamber is provided in the septic tank 3.

In the toilet 51 having the above construction, the human waste excreted in the toilet part 2 falls into the settling chamber 8 of the septic tank 3 from the outlet 2b. Then, the solenoid valve 60 is opened by operating the switch 53, and the water W in the storage tank 5 flows into the toilet part 2 to wash it. The outflowing water W then flows into the second settling chamber 10 via the settling chamber 8,
The solid matter is filtered by the filter 7a, sucked by the pump 7, and pushed up to the holding body housing portion 4. Then, the water W is stored in the storage tank 5 after coming into contact with the microorganism holder 15 contained therein. And Example 1
When the liquid level detection unit 18 detects the liquid level L, the pump 7 is stopped, the valve 19 is closed, and the circulation of the water W is stopped by a mechanism similar to. The solid matter S deposited in the drawer-shaped settling chamber 8 can be taken out of the main body 52 together with the settling chamber 8 and discharged.

In the toilet 51 having the above-mentioned structure, the toilet part 2, the septic tank 3, the holding part accommodating part 4, the storage tank 5 and the like are integrally and compactly incorporated into the main body 52, and there is no water supply and drainage facility. It can be easily installed in place. Further, since the casters 54 are provided in the lower portion, the casters 54 are extremely easy to move, and can be suitably used, for example, in a hospital or a home for caring for a bedridden sick person.

Here, as shown in FIG. 6, by providing a bottom plate portion 57 for closing the outlet 2b of the toilet portion 2 so as to be openable and closable, and providing an agitator 56 rotatably driven by a motor 55 in the vicinity thereof, By rotating the agitator 56 while the water W is stored in the portion 2, the inside of the toilet portion 2 can be cleaned more efficiently by the water flow.

The holding body accommodating portion 4 may be provided adjacent to the pump 7 and below the main body 52.

Here, the main body 52 can be formed in a box shape as shown in FIG. 7 in addition to the shape shown in FIGS. 5 and 6, and the toilet 51 can be constructed as a booth type toilet. In the example shown in FIG. 7, a box-shaped main body 5
2 is placed on the installation surface G, the holding body accommodation part 4 and the storage tank 5 are attached to the inside upper part thereof, and a space P for the user M to stay is formed in front of the toilet part 2. There is. Further, the main body 52 is provided with a doorway 52b having a door 52a. The user M uses the pedal 5 provided near the front foot of the septic tank 3 after using the toilet 51.
By stepping on 6, the solenoid valve 60 is opened and the water W can be made to flow into the toilet part 2. Such a booth type toilet can be suitably used as a temporary toilet at a construction site, for example. In the figure, the control unit 2
3 is not drawn.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a configuration example of a toilet according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a contact material.

FIG. 3 is a cross-sectional view showing an internal structure of a holder accommodating portion.

FIG. 4 is a plan view showing an example of the aeration mechanism.

FIG. 5 is a conceptual diagram showing a configuration example of a toilet according to a second embodiment.

FIG. 6 is a conceptual diagram showing a modified example of the toilet of the second embodiment.

FIG. 7 is a conceptual diagram showing another modification of the toilet of the second embodiment.

[Explanation of symbols]

 1, 51 Toilet 2 Toilet part 3 Septic tank 4 Retainer storage part 5 Storage tank 6 Circulation passage 7 Pump (liquid feeding means) 8 Settling chamber 9 Contact aeration chamber 12 Contact material 13 Aeration mechanism 15 Microorganism retainer 16 Aeration mechanism 52 Main body 54 caster

Claims (11)

[Claims] 1. A toilet part that receives human waste, a septic tank that purifies water containing human waste from the toilet part, and water that holds live microorganisms and is brought into contact with water supplied from the septic tank. The microbial carrier that mixes the living microorganisms with the microbial carrier, the carrier housing unit that houses the microbial carrier, the toilet unit, the septic tank and the carrier housing unit are connected to each other, and water is circulated and circulated in this order. A toilet characterized by comprising a circulation passage and a liquid feeding means. 2. The toilet according to claim 1, wherein the microbial carrier mainly contains humus. 3. The toilet according to claim 2, wherein the humic substance contained in the microorganism carrier contains a weakly acidic low molecular weight substance or an iron complex thereof. 4. The toilet according to claim 3, wherein the weakly acidic low molecular weight substance contains fulvic acid. 5. The toilet according to any one of claims 2 to 4, wherein the microbial carrier is formed by pelletizing the humus together with a caking substance. 6. The toilet according to claim 1, wherein an aeration mechanism for supplying a gas such as air and oxygen to the microorganism holder to aerate the microorganism holder is provided in the holder accommodating portion. . 7. The flush structure according to claim 1, further comprising a storage tank for storing water from the holder housing portion and supplying the stored water to the toilet portion. Toilet. 8. The septic tank comprises a settling chamber for settling solids contained in water flowing from the toilet section.
Toilet according to any one of 1 to 7. 9. The septic tank is provided with a contact aeration chamber, and a biofilm is formed on the surface of the contact aeration chamber, and the biofilm is brought into contact with water to be contained in the biofilm. A contact mechanism for decomposing the dirt component contained in the water by the action of microorganisms is accommodated, and an aeration mechanism for supplying a gas such as air or oxygen to the contact mechanism to aerate this is provided. The toilet according to any one of 1 to 8. 10. The septic tank is provided below the toilet part, and the toilet part, the septic tank, the holder housing part,
The toilet according to any one of claims 1 to 9, wherein the circulation passage and the liquid feeding means are integrally incorporated into the main body so that the whole is movable. 11. The toilet according to claim 10, wherein the main body is provided with casters.