JPH10296113A - Garbage treating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for a pump to draw up the settled crushed garbage and sludge, to make the system low in cost, to facilitate the maintenance and to decrease the floor space. SOLUTION: This system is provided with a disposer 1 connected to a drain port 4 of a sink 2 to crush garbage, a treating tank 20 for storing the crushed material and waste water from the disposer 1 and a composting device 40 for composting the solid settled in the treating tank 20. Then, the treating tank 20 is arranged on the upper side of the composting device 40, the bottom side of the treating tank 20 is formed in a funnel shape and the discharge port is communicated with the composting device 40 through an opening closing valve 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal system for separating garbage into solids and liquids and burying liquids and solids.

[0002]

2. Description of the Related Art Conventionally, a solid-liquid separation section for separating a solid component and a liquid component of a pulverized product pulverized by a disposer is provided on a downstream side of a disposer provided in a kitchen sink, for example. It is known that the solid content separated by the liquid separating section is stored in a bag and the liquid is discarded without purification (Japanese Utility Model Application Laid-Open No. 58-9639).

[0003] However, such wastewater is BOD
(Biochemical oxygen demand), COD (Chemical oxygen demand), and the like are large, and therefore, there is a problem of causing environmental pollution when the wastewater is directly poured into sewage.

[0004] In addition, since the solid content is stored in a bag or the like, there are problems such as generation of offensive odor and insects, and there is a drawback that the user feels uncomfortable.

In view of these problems, in recent years, purification devices for treating wastewater, treatment devices for decomposing and processing garbage (composting devices, also called composting devices), and the like have been commercialized. After solid-liquid separation of the pulverized material obtained in the above, it is considered that the pulverized material is treated by a purification device and a composting device, respectively.

In the garbage disposal system, garbage pulverized material and wastewater from a disposer are temporarily stored in a regulating tank (sedimentation tank) to precipitate solids such as garbage pulverized material and sludge, and the precipitated solids Is pumped up by a pump and put into a composting device provided side by side to be composted. Also,
The supernatant of the adjusting tank is pumped up by a pump, put into a juxtaposed purification tank, and subjected to purification treatment such as aeration and filtration before draining.

[0007]

However, in the above, the pump for pumping up the crushed garbage or sludge which has settled is liable to be clogged because the solid and liquid components are handled together, and the structure is complicated and expensive. . In addition, a place for installing a regulating tank and a composting device is required for solid-liquid separation and composting, and the installation area becomes large.

Also, two tanks, a regulating tank and a septic tank, are required for solid-liquid separation and purification treatment, which increases the volume of the entire system, and also requires a pump for transferring wastewater from the regulating tank to the septic tank. Was.

Accordingly, the present invention has been made to solve such problems, and a pump for pumping up the crushed garbage and sludge that has settled is not required, so that the cost can be reduced and the maintenance can be facilitated. It is another object of the present invention to provide a garbage disposal system capable of reducing the installation area.

Further, it is possible to provide a garbage disposal system capable of performing solid-liquid separation and purification treatment in one treatment tank, eliminating the need for a pump for transferring between tanks, and reducing the size and cost of the entire system. It is intended for.

[0011]

To achieve the above object, a garbage disposal system according to the present invention comprises a disposer connected to a drain of a sink for crushing garbage, and a crushed material from the disposer. And a composting device for composting solids precipitated in the treatment tank. The treatment tank is arranged above the composting device, and the bottom side of the treatment tank is funnel-shaped. To form
The outlet is communicated with the composting device via an opening / closing means.

Further, the garbage disposal system according to the present invention comprises a disposer connected to a drain port of a sink for crushing garbage, a treatment tank for storing crushed material and wastewater from the disposer, and a treatment tank. An aeration device disposed in the processing tank, and a composting device for composting solids precipitated in the processing tank, the aeration device disposed in the processing tank is used to remove pulverized materials and drainage from the disposer. It is characterized by being provided above the inlet.

[0013] The garbage disposal system according to the present invention also includes a disposer connected to a drain port of a sink for crushing garbage, a treatment tank for storing crushed material and wastewater from the disposer, An aeration device disposed in the treatment tank, and a composting device for composting solids precipitated in the treatment tank, wherein the treatment tank is disposed above the composting device, and a bottom side of the treatment tank. Is formed in a funnel shape, the outlet of which is communicated with the composting device via an opening / closing means, and the aeration device is provided above the inlet of the pulverized material and drainage from the disposer. Things.

Further, the garbage disposal system according to the present invention is characterized in that a partition plate is provided below the aeration device to block the downward effect of convection generated by the aeration device. is there.

Further, the garbage disposal system according to the present invention is characterized in that a control device for stopping the aeration device when opening the opening / closing means is provided.

[0016]

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

FIG. 1 is a cross-sectional view of a main part of the garbage disposal system according to the embodiment as viewed from the side, and FIG. 2 is a cross-sectional view of a main part as viewed from the right side of FIG.

The garbage disposal system in this embodiment comprises a disposer 1 arranged indoors and a system body 10 arranged outdoors.

The disposer 1 has a sink 3 of a sink 2.
The garbage which is connected to the drain port 4 on the bottom face and is put into the drain port 4 is finely crushed. The crushed garbage and waste water from the disposer 1 are sent to the system body 10 via the transfer pipe 5.

The system main body 10 is housed in a main body case 11, and the main body case 11 is vertically divided by a partition wall 12. A processing tank 20 having a cylindrical shape and a funnel-shaped lower part is accommodated in the upper part of the main body case 11, and a composting device 40 is accommodated in the lower part.

A main pump 13 for feeding crushed garbage and wastewater sent from the disposer 1 through the transfer pipe 5 into the processing tank 20 and a processing pump 20 on the partition 12. An air pump 14 for sending air to an aeration device 21 provided, and a drainage filter 2 for draining water filtered by a submerged membrane cartridge (filtration device) 22 provided in the treatment layer 20.
A drain pump 15 for feeding to a drain pipe 7 connected to a sewage port 6 is provided.

In the processing tank 20, the main pump 13 is provided.
, A tubular aeration device 21 provided at the tip of a pipe 25 from the air pump 14, and a submerged membrane cartridge 22 connected to a pipe 26 to a drain pump 15. . These disposition positions are such that the inlet 24 for crushed garbage and wastewater is disposed at an inner wall position where the bottom of the treatment layer 20 has a funnel shape, and the aeration device 21 is disposed at the upper central side of the inlet 24. A submerged membrane cartridge 22 is arranged on the upper side of 21. In addition, a partition plate 27 having one end attached to the inner wall of the processing tank 20 and the other end reaching a position slightly beyond the aeration apparatus 21 is provided below the aeration apparatus 21.
0 It is disposed so as to be inclined toward the bottom.

An activated sludge concentration (MLSS) sensor 28 is mounted on the inner wall of the treatment tank 20 at substantially the same position as the aeration device 21, and a water level sensor is provided above the submerged membrane cartridge 22 as a water level sensor. A float sensor 29 is provided which is turned on when the float is tilted due to ascent.

As shown in FIG. 3, the submerged membrane cartridge 22 is provided with a plurality of (here, five) submerged membrane filters 22c in a cartridge body 22b provided with a handle 22a for pulling out at the time of replacement. They are arranged at equal intervals. Each submerged membrane filter 22c is formed by applying a filtration membrane having fine pores of about 0.4 μm formed on a resin frame, and a thin water absorption pipe 22d is attached to each. Each water suction pipe 22 d is connected to a pipe 26 to the drain pump 15. On the bottom plate 22e side of the cartridge body 22b, openings 22g are formed between the holding plates 22f holding both ends of the submerged membrane filter 22c and the both sides thereof. It is configured such that bubble-like air is easily supplied to each submerged membrane filter 22c.

The aeration device 21 is formed by arranging a tubular body having a large number of air holes horizontally along the direction in which the submerged membrane filter 22c is provided. Is diffused in the form of bubbles toward the submerged membrane filter 22c.

On the other hand, the bottom side of the treatment tank 20 is formed in a funnel shape as described above, and its discharge port 30 has an open / close valve 3.
A connection pipe 32 having a connection pipe 1 is attached, and this connection pipe 32 is connected to the lower side of the main body case 11 through the partition wall 12. Then, the joint 3 is connected to the connection pipe 32.
Input pipe 34 attached to the composting device 40 via
Is connected. Therefore, the connection pipe 32 on the processing tank 20 side and the input pipe 34 on the composting apparatus 40 side are connected by the joint 33.
Can be removed.

The composting device 40 stores wood chips such as sawdust and a carrier made of activated carbon, and performs a decomposition process for organically decomposing solids such as pulverized garbage and sludge input from the processing tank 20. A tank 41, a stirrer 42 rotatably supported by the processing tank 41, and a stirrer 42 for stirring and mixing the carrier and the solid component to be processed; an electric motor 43; A speed reducer 44 for rotating 42, and a temperature (approximately 30 ° C. to 40 ° C.) suitable for organic decomposition processing, which is attached to the outer surface of the decomposition processing tank 41 and the inside of the processing layer 41
It has a planar heater (not shown) for keeping it.

As described above, the processing tank 20 into which garbage pulverized material and wastewater are charged is disposed immediately above the composting apparatus 40, and the bottom side of the processing tank 20 is formed in a funnel shape, and the wastewater is discharged therefrom. By communicating the outlet 30 with the composting device 40 via the opening / closing valve 31, the funnel-shaped portion of the treatment tank 20 (the sedimentation chamber 20.
The crushed garbage and sludge settled in a) can be introduced into the composting device 40 by gravity only by opening the opening / closing valve 31 by its own weight and water pressure. This eliminates the need for a pump for pumping up the crushed garbage and sludge as in the related art, thereby reducing costs and facilitating maintenance and reducing the installation area as a whole.

The upper and lower sides of the main body case 11 divided by the partition 12 are provided with opening and closing doors 11a and 11a, respectively.
b is provided so that the submerged membrane cartridge 22 can be replaced and the object to be processed can be taken out of the composting device 40.

Now, when the garbage disposal system constructed as described above is operated and garbage is put into the drain port 4 of the sink 2 or drained, the garbage is pulverized by the disposer 1 and the waste water is discharged. Pass as it is. The garbage pulverized material and wastewater from the disposer 1 are sent to the main pump 13 through the transfer pipe 5, and the main pump 13 passes through the pipe 23 to open the opening 24 on the bottom side of the processing tank 20.
From the processing tank 20.

The solid content of the pulverized garbage is immediately settled in a funnel-shaped settling chamber 20a on the bottom side of the processing tank 20,
Turbid water, which is a mixture of garbage crushed liquid and wastewater, accumulates on it. Then, when the water level rises to a level exceeding the aeration device 21, the activated sludge concentration (MLSS) sensor 2
A control device (not shown) drives the air pump 14 to send air to the aeration device 21 based on the output of 8 and the like.

Since the organic matter is dissolved in the turbid water in which the liquid component of the garbage crushed material and the wastewater are mixed, the air is blown from the aeration device 21 to activate the organic matter of the turbid water to generate activated sludge. . A part of the activated sludge is settled in the settling chamber 20a, while the other is circulated in the treatment tank 20 together with the convection generated by the aeration treatment.

As described above, the aeration device 21 provided in the processing tank 20 is provided above the inlet 24 for the pulverized material and drainage from the disposer 1, so that the sedimentation chamber is provided at the lower side of the processing tank 20. 20a are formed, and one processing tank 20 is formed.
Since the solid-liquid separation and the purification treatment can be performed by using the conventional method, a pump for transferring between tanks as in the related art is not required, and the size and cost of the entire system can be reduced.

Further, since the sedimentation chamber 20a is isolated from the aeration device 21 by the partition plate 27, the crushed garbage and sludge once settled are not affected by the convection generated by the aeration treatment, so that they do not fly up. In addition, solid-liquid separation by precipitation can be performed more effectively. Further, since the partition plate 27 is disposed to be inclined toward the bottom of the treatment tank 20, the sludge settled here does not accumulate on the partition plate 27 and falls into the sedimentation chamber 20a. Has become.

When the water level rises further and the float sensor 29 operates, the drainage pump 15 is driven, and the filtration and drainage treatment by the submerged membrane cartridge 22 is performed.
Since the activated sludge generated by the above-described aeration treatment is larger than the fine pores (0.4 μm) formed in the submerged membrane filter 22c, the activated sludge is almost completely filtered by the submerged membrane filter 22c, and the turbidity of the wastewater is reduced. The degree can be reduced to 300 mg / liter or less. The wastewater thus purified is discharged from the drainage pump 15 to the sewage port 6 below the sink 2 via the drainage pipe 7.

The aeration device 21 is provided below the submerged membrane cartridge 22 and is disposed horizontally along the direction in which the submerged membrane filter 22c is provided.
Since the air bubbles from 1 rise so as to envelop the submerged membrane filter 22c, it is possible to sufficiently aerate the wastewater filtered by the submerged membrane filter 22c. Further, since air bubbles hit the surface of the submerged membrane filter 22c, activated sludge adhering to the surface of the submerged membrane filter 22c can be removed, preventing clogging of the submerged membrane filter 22c and extending the life. Can be planned.

Further, the aeration device 21 is periodically switched to, for example, 1
By stopping for one hour in the middle of the day, the sludge circulated by the convection by the aeration device 21 is also removed from the sedimentation chamber 2.
Oa can be precipitated.

As described above, crushed garbage and sludge settle in the sedimentation chamber 20a, and as the sedimentation amount increases, the activated sludge concentration increases. Accordingly, the control device removes the settled garbage crushed material and sludge, for example, once a day in the midnight aeration device 2.
While stopping 1, while measuring the concentration with the activated sludge concentration sensor 28 so that the activated sludge concentration can be kept constant,
By opening the valve 32 and dropping a certain amount into the decomposition treatment tank 41 of the composting device 40, the liquid content contained in the crushed garbage and sludge can be reduced, and the processing efficiency of the composting device 40 can be reduced. Can be prevented from decreasing.

In the composting apparatus 40, the crushed garbage and sludge supplied from the processing tank 20 are mixed with the carrier by the stirrer 42 and decomposed by the planar heater disposed on the outer surface of the decomposing tank 41. The inside of the processing tank 41 is maintained at a predetermined temperature, and crushed garbage and sludge are decomposed into carbon dioxide and water by microorganisms or the like cultured on the carrier, and are composted.

The inclination angle when the bottom of the processing tank 20 is formed in a funnel shape. If the angle is set to be about 60 ° with respect to the horizontal direction, the water is discharged from the discharge port 30. Pulverized garbage and sludge can be discharged well, and their water content can be reduced.

A composting device 4 for pulverized garbage and sludge
In addition to the timing described above, the charging to 0 may be performed, for example, after the disposer 1 is activated and settled for about 1 hour.

[0042]

As described above, according to the present invention, the treatment tank is arranged above the composting apparatus, the bottom of the treatment tank is formed in a funnel shape, and the outlet of the treatment tank is opened and closed via opening / closing means. Since the garbage and sludge settled in the funnel-shaped part are connected to the composting device, the gravitational waste and sludge settled in the funnel-shaped portion can be introduced into the composting device using gravity by simply opening the opening and closing means by its own weight and water pressure. Become like Therefore, a pump for pumping up the crushed garbage and sludge that has settled is not required, and cost reduction and easy maintenance can be achieved. Further, since the treatment tank is arranged above the place where the composting device is installed, the installation area can be reduced.

Further, according to the present invention, the aeration device provided in the processing tank is provided above the inlet of the pulverized material and drainage from the disposer, so that the solid-liquid separation and the purification treatment can be performed in one processing tank. , And a pump for transferring between tanks is not required, so that the size and cost of the entire system can be reduced.

Further, since a partition plate is provided below the aeration device to block the downward effect of convection generated by the aeration device, the crushed garbage and sludge settle by the convection due to the aeration treatment. And solid-liquid separation by precipitation can be performed more effectively.

Further, since the crushed garbage and sludge settled in the treatment tank are supplied to the composting device while the aeration device is stopped, the amount of liquid contained in the crushed garbage and sludge is reduced. And a reduction in the processing efficiency of the composting device can be prevented.

[Brief description of the drawings]

FIG. 1 is an essential part cross-sectional view of a garbage disposal system according to an embodiment viewed from a side.

FIG. 2 is a cross-sectional view of a main part viewed from the right side of FIG.

FIG. 3 is a perspective view of the submerged membrane cartridge shown in FIGS. 1 and 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposer 2 Sink 4 Drainage port 20 Processing tank 21 Aeration device 22 Submerged membrane cartridge 24 Input port 27 Partition plate 30 Discharge port 31 Opening / closing valve 40 Composting device

Claims (5)

[Claims] 1. A disposer connected to a drain of a sink for crushing garbage, a processing tank for storing crushed material and wastewater from the disposer, and a compost for composting solids precipitated in the processing tank. The treatment tank was arranged above the composting device, and the bottom side of the treatment tank was formed in a funnel shape, and the outlet was communicated with the composting device via opening / closing means. A garbage disposal system characterized by the following. 2. A disposer connected to a drain port of a sink for crushing garbage, a processing tank for storing crushed material and wastewater from the disposer, and an aeration device disposed in the processing tank. A garbage disposal system, comprising: a composting device for composting solid matter precipitated in the treatment tank; and wherein the aeration device is provided above an inlet for pulverized material and drainage from the disposer. 3. A disposer connected to a drain port of a sink for crushing garbage, a processing tank for storing crushed material and wastewater from the disposer, an aeration device disposed in the processing tank, A composting device for composting the solid matter precipitated in the treatment tank, and the treatment tank is arranged above the composting device, and the bottom side of the treatment tank is formed in a funnel shape, and the discharge port is formed. A garbage disposal system, wherein the garbage disposal system is communicated with a composting device through an opening / closing means, and the aeration device is provided above an inlet for pulverized material or drainage from the disposer. 4. The garbage disposal according to claim 2, wherein a partition plate is provided below the aeration device to block a downward effect of convection generated by the aeration device. system. 5. The garbage disposal system according to claim 3, further comprising a control device for stopping the aeration device when the opening / closing means is opened.