JPH06296952A - Garbage disposal device - Google Patents

Abstract

PURPOSE:To provide the garbage disosal device suitable for utilization in general homes of a municipal area by removing the org. matter included in the treated water discharged from a treating vessel and reusing the org. matter. CONSTITUTION:The treating vessel 2 housing treating media A is juxtaposed with a septic tank 9 on one side thereof. This septic tank 9 is connected via a lifting pump 8 to a water receiving pan 11 disposed to face a drain port 20 opening in the bottom of the treating vessel 2. The upper part of the septic tank 9 is connected to the upper part of the treating vessel 2 by a reflux pipe 91 and is connected to sewerage via a drain pipe 90 connected to the lower part parted from the position connected to the lifting pump 8. The treated water which is formed by decomposition of the garbage in the treating media A and is discharged from the drain port 20 to the water receiving pan 11, is lifted by the lifting pump 8 and is supplied to the septic tank 9. While this treated water is partly returned via the reflux pipe 91 to the treating vessel 2, the treated water purified by the flow in the septic tank 9 is released through a drain pipe 90 to the sewer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal device for decomposing food waste (garbage) generated in a kitchen by the activity of microorganisms such as cocci and bacilli.

[0002]

2. Description of the Related Art Kitchen wastes that are generated daily in kitchens such as general households and restaurants, if left unattended, cause bad odors due to rotting and breed pests, deteriorating the sanitary environment of the kitchen. It is necessary to process promptly and hygienically.

The conventional kitchen waste treatment is generally carried out by a method of capturing the kitchen waste that is thrown into the drainage basket installed at the drainage port of the sink together with the drainage, and taking it out appropriately and discarding it together with other garbage. . However, in this method, in order to prevent spoilage of the kitchen waste trapped in the drainage basket and to maintain a good sanitary environment in the kitchen, it is necessary to frequently remove and discard the captured kitchen waste, and each time of this removal. However, there is a problem in that secondary work, which is complicated, such as refilling the trapped kitchen waste with a plastic bag and washing the drain basket, is forced.

In Europe and America, a method is widely adopted in which a kitchen crusher (disposer) is connected to the drainage port of a sink to crush the kitchen waste and dispose of it in the public sewer together with the drainage. However, in Japan, where there are many combined sewer systems with rainwater, the public sewer system may be subjected to eutrophication due to the fact that overflow of inflow water may cause pollution of natural water bodies such as rivers and lakes. Suspended solids (SS) and biochemical oxygen demand (BOD) in wastewater
However, wastewater from a disposer that contains crushed garbage and is in a thick liquid state cannot meet the above regulations, and this kind of garbage treatment is actually prohibited.

[0005] As one method of garbage disposal for solving the above-mentioned difficulties, there is a method of decomposing garbage by utilizing the activity of microorganisms, and a composter is conventionally known as an equipment for garbage disposal by this method. . A composter is a tubular body with a lid plate on one side opening, and is used by embedding it in the soil for a suitable length with the other side facing downward.The lid plate is opened and kitchen waste is thrown inside, It is left in a closed state and the input kitchen waste is composted by the activity of microorganisms (soil fungi).

[0006] The garbage treatment performed in this manner does not require a secondary operation for the disposal of the garbage, and the garbage incinerator,
It is desirable from the viewpoint of environmental protection without the possibility of causing inconveniences such as an increase in treatment load at the sewage treatment plant and pollution of natural water areas. However, the composter is premised on the presence of soil for embedding in the above-mentioned use, and composting of garbage in the interior occurs very slowly, and there is a possibility that the strange odor generated during this period leaks to the surroundings. , There is a problem that it is not suitable for use in urban areas where there are many apartments and other apartments.

In order to solve this problem, the applicant of the present application has already proposed a kitchen waste treating apparatus which utilizes decomposition of kitchen garbage by microorganisms and can be used in urban areas. This is because a processing medium suitable for culturing microorganisms such as wood debris such as sawdust, chaff, rice bran, soil, etc. is stored inside a hollow container (treatment tank) having an appropriate inner volume, and the treatment is performed. This is a device having a simple configuration in which a kitchen throw-in port is provided at the top of the tank and a drain port is provided at the bottom. An environment (temperature, humidity, etc.) suitable for the propagation of microorganisms is maintained inside the treatment tank, and the garbage thrown from the garbage feeding port is introduced together with these and the microorganisms that propagate in the treatment medium ( It is decomposed into water (H ₂ O) and carbon dioxide (CO ₂ ) by the activity of cocci and bacilli. Further, the processing tank comprises a stirring means for stirring the internal processing medium, and a crushing means for crushing the thrown garbage, and these operate when throwing the garbage to treat the crushed garbage while crushing it. It is designed to be mixed with the medium,
The time required for the decomposition process is shortened.

In the kitchen waste treating apparatus as described above, for example, the processing tank is installed inside the sink, the kitchen input port is connected to the top plate of the sink, the lid plate is provided at the opening position, and the drainage at the bottom of the processing tank is provided. It is used by connecting the mouth to the middle of the drain pipe connected to the sink, and the user only needs to put the garbage that is generated every day into the garbage input port, and the water generated as a result of decomposition is , It is released from the drainage port at the bottom of the treatment tank into the sewage through the drainage pipe, and the carbon dioxide gas is also released into the atmosphere, and the garbage is completely extinguished. Also, the time required until this disappearance is determined by selecting the processing medium and optimizing the internal environment of the processing tank, mixing the kitchen waste with the processing medium by the stirring means, and crushing the kitchen waste by the crushing means. It can be shortened significantly compared to the above, and from the viewpoint of environmental protection, sanitary garbage disposal can be quickly achieved with a small labor burden.

[0009]

However, the water (hereinafter referred to as treated water) generated by the decomposition treatment of kitchen waste inside the treatment tank is flown through the treatment medium and reaches the bottom of the treatment tank. , Treated water that contains various organic substances such as microorganisms that propagate in the treatment medium and kitchen waste that is in the process of being decomposed, and reaches the bottom of the treatment tank may not be able to meet various regulations for waste water to be discharged into the public sewer. However, it is difficult to use in the above-mentioned mode, that is, in a mode in which the drainage port formed at the bottom of the treatment tank is connected to the drainage pipe of the sink sink and the treated water is discharged directly into the sewer.

Further, the maximum treatment capacity of the garbage treatment device depends on the amount of microorganisms in the treatment medium,
When the internal environment of the processing tank is properly maintained, it theoretically corresponds to the storage amount of the processing medium inside the processing tank. However, as described above, since some of the microorganisms that propagate in the treatment medium are constantly lost together with the treated water discharged from the drainage port, the actual treatment capacity becomes smaller than the theoretical value. In order to compensate for this reduction in processing capacity, it is required to increase the internal volume of the processing tank. Therefore, when it is intended to realize the kitchen waste processing apparatus having a desired processing capacity in the above-mentioned usage form, that is, in the form in which the processing tank is installed inside the sink, this processing tank has a limited internal volume of the sink. Since it occupies a large amount, there is a disadvantage that the usability of the sink is deteriorated.

As described above, in the conventional garbage treatment equipment, the presence of organic substances contained in the treated water discharged from the drainage port at the bottom of the treatment tank limits the release to the sewage, and
There are difficulties that lead to a decline in kitchen waste processing capacity, and these are one of the factors that hinder the use of households in urban areas.

The present invention has been made in view of the above circumstances, and aims to remove organic substances contained in treated water and to reuse the organic substances, and is suitable for use in general households in urban areas. The purpose is to provide.

[0013]

The kitchen waste processing apparatus according to the first aspect of the present invention decomposes the kitchen waste that has been put into the processing tank containing the processing medium by the activity of the microorganisms in the processing medium, In the kitchen waste treatment device that discharges the water generated at this time through a drain port that opens at the bottom of the treatment tank,
It is characterized in that it comprises a septic tank which is connected to the drain port and purifies the water discharged from the drain port.

Further, the kitchen waste treating apparatus according to the second aspect of the present invention decomposes the kitchen waste put into the inside of the processing tank containing the processing medium by the activity of the microorganisms in the processing medium,
In the kitchen waste treatment apparatus that discharges the water generated at this time through a drain port that opens at the bottom of the treatment tank, a kitchen is provided with a return path for returning a part of the water discharged from the drain port to the treatment tank. Characterize.

[0015]

In the first aspect of the invention, a septic tank is connected to the drain port at the bottom of the treatment tank, and the treated water discharged from the drain port is passed through the septic tank to sufficiently remove the organic substances contained in the treated water. However, it can be released into sewage.

Further, in the second invention, a part of the treated water discharged from the drain port at the bottom of the treated tank is refluxed to the treated tank through a reflux passage, and an organic matter contained in the treated water, particularly,
The microorganisms discharged together with the treated water are returned to the treatment tank to improve the treatment capacity inside the treatment tank.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a side sectional view of a garbage processing device according to the present invention (hereinafter referred to as the present invention device).

As shown in the figure, the apparatus of the present invention is provided with a kitchen throwing port 10 on its upper part, and a treatment pan 2 and a septic tank 9 inside an outer box 1 to which a water receiving pan 11 and a pump 8 are fixed at the outer lower part. Be equipped with. The outer case 1 is configured as a part of a sink installed in the kitchen, and a water receiving pan 11 at a lower outer side of the outer case 1 communicates with a suction side of the pumping pump 8 arranged in parallel therewith. It is connected via a pipe 21.

The processing tank 2 inside the outer box 1 is a hollow container made of a corrosion-resistant material such as synthetic resin or stainless steel, and the processing medium A is stored in the processing tank 2. This treatment medium A is a microbial culture substrate suitable for breeding microorganisms such as cocci and bacilli, and is disclosed, for example, in Japanese Patent Publication No. 34679/1990, "Method for treating sludge with wood chips". The wood strips made porous by a predetermined treatment may be used. Further, a drain port 20 is opened in the center of the bottom surface of the treatment tank 2 so as to face the water receiving pan 11 fixed to the outer lower portion of the outer box 1. A filter plate made of punching metal or the like is stretched over the drain port 20 in order to prevent the processing medium A from falling off.

A stirring shaft 40 is rotatably supported at a position slightly above the center of the inside of the processing tank 2 so as to be rotatable around a substantially horizontal shaft center. A plurality of agitating blades 4, 4 ... Are provided at a distance from each other so as to project outward in the radial direction. A motor box 51 is provided inside the processing tank 2 and the drive motor 5 is housed inside the motor box 51.

The output shaft of the drive motor 5 and the agitation shaft 40 penetrate through one side wall of the processing tank 2 and project to the outside on the same side, and are connected by a drive chain 50 wound between them. The stirring shaft 40 is rotated by transmitting the driving force of the driving motor 5 through the driving chain 50, and the stirring medium 4, which is inside the processing tank 2, is stirred by the rotation of the stirring blades 4, 4, ... It is designed to be mixed with kitchen waste that will be thrown in as described below.

Further, inside the processing tank 2, a heater tube 60 containing a heater 6 is positioned horizontally below the rotation range of the stirring blades 4, 4, ... A plurality of fixed blades 7, 7 ... Protruding upward toward the rotation range of the stirring blades 4, 4 ... Are fixedly provided on the outer side of 60. These fixed blades 7, 7 ...
Between the processing medium A and the garbage by the rotation of the stirring blades 4, 4 ..., The garbage that comes into contact with each of them is cut into pieces.

On the other hand, the septic tanks 9 inside the outer box 1 are arranged side by side on one side of the processing tank 2, and are connected to the discharge side of the pumping pump 8 via a pumping pipe 22, and the inside of the processing tank 2 is connected. The treated water discharged to the water receiving pan 11 in accordance with the garbage treatment which will be described later will be sucked into the pump 8 via the communication pipe 21 and supplied to the septic tank 9 via the pump pipe 22 on the discharge side. It has been done. The connection of the pumping pipe 22 to the septic tank 9 is
The check valve 23 allows only the inflow into the septic tank 9, and when the pumping pump 8 is stopped, the treated water in the septic tank 9 in the upper position is transferred to the pump 8 by the hydrostatic pressure. It is designed to prevent backflow.

Further, the septic tank 9 is connected to the sewer through a drain pipe 90 connected to the lower part of the septic tank 22 at a position distant from the pumping pipe 22, and the treated water supplied to the septic tank 9 is stored in the septic tank 9. After passing through the inside, it is discharged to the sewage through the drain pipe 90. Further, the septic tank 9 is connected to the upper part of the treatment tank 2 via a reflux pipe 91 connected to the upper side surface of the septic tank 9, and a part of the treated water flowing inside the septic tank 9 is fed to the reflux pipe 91. After that, it is returned to the processing tank 2.

FIG. 2 is an enlarged sectional view of the septic tank 9. As shown in this figure, the septic tank 9 is composed of a plurality of (three in the figure) partition plates 9a, 9b, 9c fixed inside the pumping pipe 22.
Is a hollow container having a long passage extending from the connection position of the drain pipe 90 to the connection position of the drain pipe 90, and each partition plate 9a, 9b,
The space 9c is filled with a purification medium B made of activated carbon, wood chips, or the like.

In the operation of the apparatus of the present invention constructed as described above, the lid plate 12 covering the upper part is opened, and the garbage is thrown into the garbage throwing port 10. The driving switch (not shown) is turned on to turn on the driving motor 5. This is performed by the procedure of rotating drive.

The driving force of the driving motor 5 is transmitted to the stirring shaft 40 via the driving chain 50 as described above, and the stirring shaft 40 is driven.
The stirring blades 4, 4 ... Rotate together, and the garbage thrown into the processing tank 2 is mixed with the processing medium A, and during this mixing, the fixed blades 7, 7 ... It becomes fine fragments and disperses in the processing medium A.

This operation is performed in accordance with the operation of turning off the operation switch by the user who has finished putting the garbage into the garbage inlet 10.
After the driving of the drive motor 5 is continued for a predetermined period of time, the driving is terminated, and then the device of the present invention is kept in a stopped state and stands by until the next throw-in of garbage. After the operation switch 81 is turned off, the rotation of the drive motor 5 is continued because the mixing of the garbage into the processing medium A by the rotation of the stirring blades 4, 4, ... And the crushing of the garbage by the fixed blades 7, 7. It is necessary to get enough done.

The treatment medium A inside the treatment tank 2 is a microbial culture substrate that forms an environment suitable for the growth of microorganisms, as described above, and the temperature in the treatment medium A is set appropriately for the heater 6. It is maintained at a temperature suitable for the reproduction of microorganisms by applying electricity. Therefore, the fragments of the garbage that are put into the treatment tank 2 and mixed with the treatment medium A are the various microorganisms (coccus and bacillus) brought with the garbage, and the activities of the microorganisms that have already propagated in the treatment medium A. Thus, the disassembly processing is performed during the standby after the operation stop.

This decomposition treatment is a process of spoiling garbage by the activity of microorganisms in an anaerobic environment, and a process of spoiling the garbage spoiled by the activity of microorganisms in an aerobic environment in water (H ₂ O).
And the process of decomposing into carbon dioxide gas (CO ₂ ) are repeated, and the generated treated water passes through the layer of the treatment medium A, reaches the bottom of the treatment layer 2, and is received through the drain port 20. Water pan
It is discharged to 11, and the carbon dioxide gas is exhausted to the surroundings, and the garbage inside the processing tank 2 disappears completely. Since the carbon dioxide gas contains an offensive odor during the spoilage process of kitchen waste, it is desirable to provide an appropriate exhaust means when the device of the present invention is used indoors.

The treated water discharged to the water receiving pan 11 contains various organic substances such as microorganisms that propagate in the treating medium A and kitchen waste particles that are in the process of being decomposed. It is supplied to the septic tank 9 via the pumping pipe 22 by the operation of the driven pumping pump 8, part of which is refluxed to the treatment tank 2 via the reflux pipe 91, and the rest flows through the inside of the septic tank 9 and then the drain pipe 90.
After being discharged into the sewage.

The pumping pump 8 is preferably driven according to the water level of the treated water accumulated in the water receiving pan 11 and the treatment tank 2 above it in order to prevent unnecessary driving. Further, since the check valve 23 is provided at the connecting portion between the pumping pipe 22 and the septic tank 9, there is no fear that the treated water supplied to the septic tank 9 will flow backward when the pump 8 is not driven.

The treated water supplied to the septic tank 9 first rises through a passage formed between one side wall of the septic tank 9 and the partition plate 9a as shown in FIG. The part is returned to the treatment tank 2 through the reflux pipe 91, and the remaining treated water flows along the passages isolated by the partition plates 9a, 9b, 9c while repeating the descending and ascending, and the drain pipe 90 Is reached and discharged. As described above, the treated water supplied to the septic tank 9 contains various organic substances, but these organic substances are adsorbed by the purifying medium B filled between the partition plates 9a, 9b, 9c, and in the purifying medium B. Since it is decomposed by the microorganisms that propagate in the water and is effectively removed before reaching the drain pipe 90, there is no possibility that the release to the sewage via the drain pipe 90 will be hindered.

Further, the reflux water returned to the treatment tank 2 through the reflux pipe 91 contains the microorganisms discharged to the water receiving pan 11 together with the treatment water, and these microorganisms are the treatment medium A inside the treatment tank 2. It re-acts inside and acts to increase the processing capacity of the garbage.

In this embodiment, the septic tank 9 is arranged on the side of the treatment tank 2, and the treated water discharged from the treatment tank 2 is pumped up by the pump 8 to be supplied to the septic tank 9. When there is a sufficient margin in the lower portion of the treatment tank 2, the septic tank 9 may be arranged in the lower portion and the treated water may be supplied to the septic tank 9 by natural flow.

[0036]

As described in detail above, in the apparatus of the present invention, the treated water discharged from the drain port at the bottom of the treatment tank is supplied to the septic tank connected to the drain port to purify the treated water. Can be released into the sewage without any hindrance, and part of the treated water is returned to the treatment tank through the reflux passage, and the microorganisms contained in the treated water are returned to the treatment tank. The present invention has excellent effects such as improvement and suitable for use in general households in urban areas.

[Brief description of drawings]

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

FIG. 2 is an enlarged sectional view of a septic tank, which is a feature of the device of the present invention.

[Explanation of symbols]

 2 Treatment tank 4 Stirring blade 5 Drive motor 8 Pumping pump 9 Purification tank 10 Kitchen waste inlet 11 Water receiving pan 12 Lid plate 20 Drain port 40 Stirring shaft 50 Drive chain 90 Drain pipe 91 Reflux pipe A Treatment medium B Purification medium

Front page continuation (72) Inventor Masahiko Asada 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Itoyo Takama 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. Within

Claims (2)

[Claims] 1. A wastewater outlet that disposes kitchen waste that has been introduced into a treatment tank containing a treatment medium by the activity of microorganisms in the treatment medium, and the water produced at this time is opened at the bottom of the treatment tank. In the kitchen waste disposal device for discharging through the wastewater treatment equipment, a kitchen waste disposal device is provided which is connected to the drainage port and purifies the water discharged from the drainage port. 2. A wastewater outlet, which is disposed in the treatment tank containing the treatment medium, decomposes kitchen waste by the activity of microorganisms in the treatment medium, and water produced at this time is opened at the bottom of the treatment tank. In the garbage disposal that discharges through
A kitchen waste treatment device comprising a reflux passage for returning a part of water discharged from the drain port to the treatment tank.