JP2003251317A - Garbage treatment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage treatment system capable of efficiently deodorizing a generated offensive smell. <P>SOLUTION: The garbage treatment system is equipped with a solid-liquid separator 40 for separating a solid-liquid mixture containing ground garbage into a solid component and a liquid component, a solid treatment apparatus (composting apparatus 50) for treating the separated solid component and a liquid treatment apparatus (a solid-liquid separation tank 10, a treatment tank 20, a sedimentation separation tank 30 or the like) for treating the separated liquid component. This system is also equipped with an air diffusion means for sucking air in the solid-liquid separator 40 to diffuse the same into the treatment tank 20 for aerating water to be treated in the liquid treatment apparatus. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid-liquid separator for separating a solid-liquid mixture containing crushed food waste crushed by a disposer into a solid component and a liquid component, and a solid treatment for treating the separated solid component. The present invention relates to a food waste processing system including an apparatus and a liquid processing apparatus that processes a liquid component, and particularly relates to deodorization of the odor.

[0002]

2. Description of the Related Art As a conventional technique relating to this type of deodorization,
JP-A-8-10792 (C02F 3/30) is equipped with an air supply means from a fermentation tank to a wastewater treatment tank, and diffuses odorous components generated in the fermentation tank into the wastewater treatment tank to deodorize. What has been done is disclosed.

[0003]

By the way, the applicant of the present application has proposed a disposer wastewater treatment device as shown in FIG. 11 as a wastewater treatment device constituting this type of food waste treatment system.

This disposer wastewater treatment system comprises a solid-liquid separation tank 10, a treatment tank (aeration tank) 20, a precipitation separation tank 30, a solid-liquid separation apparatus 40, a composting (composting) apparatus 50, a blower pump 60, an air flow. It is composed of a path switching device 70 and the like, which are housed in an outer case 80. In addition, in FIG. 11, the air supply pipe 71 from the air flow path switching device 70 is simplified by an arrow except for the processing tank 20 for easy understanding of the drawing.

The solid-liquid separation tank 10 has an inflow pipe 11 from a disposer (not shown) and a solid-liquid separation device 40 from the bottom of the tank.
An air lift pipe 12 for air-lifting crushed food waste, sludge, etc., an air lift pipe 31 for returning sludge from the sedimentation separation tank 30, and an air diffusing pipe 14 for cleaning the filter 13 are connected to the lower part of the air lift pipe 12. Air supply pipes 71, 71 from the air flow path switching device 70 are connected to the air diffuser pipe 14, respectively. In addition, an outlet port 15 is formed in the upper part of the tank for allowing the supernatant to flow into the processing tank 20 through the filter 13. In this solid-liquid separation tank 10, a solid-liquid mixture containing crushed food waste, sludge and the like is separated into a solid content and a liquid content by natural sedimentation.

An aeration diffuser pipe 21 is disposed in the center of the bottom of the processing tank 20, and an air supply pipe 71 from the air flow path switching device 70 is connected to the aeration pipe 21. This air diffuser 21
On both sides of each of them, a string-like filter medium 22 as a carrier in which two rows of aerobic microorganisms inhabit is arranged. In addition, an outlet 23 is formed in the upper part of the tank to let the treated water flow out into the precipitation separation tank 30. In this processing tank 20, the air diffuser 2
The aeration process using No. 1 activates aerobic microorganisms living in the string-shaped filter medium 22 to decompose organic components in the water to be treated.

Further, an air lift pipe 31 for returning the settled sludge m from the bottom of the tank to the solid-liquid separation tank 10 is provided in the sedimentation separation tank 30, and an air lift pipe 31 from the air flow path switching device 70 is provided below the air lift pipe 31. The air supply pipe 71 is connected. In addition, at the top of the tank, there is a drainage port 3 for letting out the supernatant liquid.
2 is formed, and a drain pipe for sewage or the like is connected to the drain port 32. In this precipitation separation tank 30, the processing tank 20
The surplus sludge generated in step 2 is settled and separated at the bottom of the tank by natural sedimentation.

The solid-liquid separation device 40 mechanically separates a solid-liquid mixture containing ground food waste, sludge and the like, which is air-lifted from the solid-liquid separation tank 10, into solid and liquid components, and the separated liquid component is solidified. It is returned to the liquid separation tank 10 and the solid content is composting device 5
Input to 0.

The composting device 50 decomposes the input solid content (organic matter) by microorganisms resident in a carrier stored in advance to compost it.

The air flow path switching device 70 switches the flow path of the air supplied from one blower pump 60 via the air supply pipe 61 to any one of the air supply pipes 71 to the above-mentioned respective parts.

Although not shown in the figure, a control unit including a microcomputer for controlling the entire system and an operation display unit for displaying various operations and statuses are provided, and the blower pump 60 and the air flow described above are provided. Road switching device 7
0, the solid-liquid separation device 40 and the like are also controlled by the control unit.

In the above structure, wastewater containing crushed food waste from the disposer and domestic wastewater from the kitchen are introduced into the solid-liquid separation tank 10 through the inflow pipe 11, and the crushed food waste and sludge separated by sedimentation are discharged there. It is put into the solid-liquid separation device 40 by the air lift pipe 12. The solid-liquid mixture introduced into the solid-liquid separation device 40 is separated into a solid component and a liquid component, the liquid component is returned to the solid-liquid separation tank 10, and the solid component is composting device 50.
It is thrown into and composted by decomposition of organic substances by microorganisms. The supernatant of the solid-liquid separation tank 10 is the filter 1
3 flows out into the treatment tank 20 and the organic component is decomposed by the microorganisms inhabiting the string-like filter medium 22 by the aeration process by the air diffuser 21. Then, the treated water from the treatment tank 20 flows into the sedimentation separation tank 30, the sludge m is precipitated and separated, and the supernatant liquid is discharged from the drainage port 32 to the sewage or the like through the drainage pipe. The sludge m settled in the settling separation tank 30 is returned to the first-stage solid-liquid separation tank 10 by the air lift pipe 31, and is introduced into the solid-liquid separation device 40 by the air lift pipe 12 together with the crushed garbage as described above and collected. .

From the solid-liquid separation tank 10 to the solid-liquid separation device 40
The airlift transfer of the solid-liquid mixture to the solid-liquid mixture and the airlift return of the sludge m from the precipitation separation tank 30 to the solid-liquid separation tank 10 are performed regularly (for example, every 30 minutes).

In the case of the above structure, the cause of the odor is
Examples include hydrogen sulfide and mercaptans that accompany the crushed food waste and sludge that have been air-lifted to the solid-liquid separation device 40, and mercaptans that accompany biological treatment in the treatment tank 20. Particularly, the composting device in which the crushed food waste and sludge settled and separated in the solid-liquid separation tank 10 are in an anaerobic state and are vigorously transported to the solid-liquid separation device 40 together with air by the air lift and communicated with the solid-liquid separation device 40. Since the odor is emitted to the outside from the exhaust port of 50, the odor is felt greatly during the regular air lift to the solid-liquid separation device 40.

For the deodorization of such an odor, the above-mentioned Japanese Patent Laid-Open No. 8-
Although it is possible to diffuse the air in the composting device 50 into the treatment tank 20 by applying the technique disclosed in Japanese Patent No. 10792, the air containing the odor diffused in the composting device 50 is diffused. Since it is worrisome, the efficiency is low, and a part of the composting device 50 is released to the outside through the exhaust port or the like.

A deodorizing method using a heating catalyst is most suitable for deodorizing and removing such an odor. However, since the heating catalyst needs to be heated to a high temperature of 200 to 300 ° C., the running cost increases. There are drawbacks.

Therefore, the present invention has been made in order to solve such a problem, and an object thereof is to provide a food waste processing system capable of efficiently deodorizing generated odors.

Another object of the present invention is to provide a food waste treatment system which can reduce running costs when a heated catalyst is used.

[0019]

In order to achieve the above object, the present invention has a solid-liquid separation device for separating a solid-liquid mixture containing crushed food waste into a solid content and a liquid content. In a food waste treatment system comprising a solid processing device for processing solids and a liquid processing device for processing separated liquids, air in the solid-liquid separation device is sucked and the liquid processing device It is characterized in that the treatment tank for aerating the treated water is provided with an aeration means for aeration.

Further, the air diffuser sucks air in the solid-liquid separator and diffuses the air into the treatment tank only when the solid-liquid mixture flows into the solid-liquid separator and only for a certain time after the end of the inflow. It is characterized by that.

On the other hand, a solid-liquid separator for separating a solid-liquid mixture containing crushed food waste into a solid content and a liquid content, a solid processing apparatus for treating the separated solid content, and a liquid for treating the separated liquid content. In the food waste processing system including a processing device, the solid processing device is provided with a deodorizing means for sucking and deodorizing the air in the solid-liquid separation device together with the air in the solid processing device. It is a thing.

Further, the deodorizing means is characterized by sucking and deodorizing air generated by aeration of the treatment tank for aerating the water to be treated in the liquid treatment apparatus.

In addition, a heating catalyst is used as the deodorizing means, and the catalyst is heated during the inflow of the solid-liquid mixture into the solid-liquid separator and for a certain period of time after the inflow is completed. is there.

A heating catalyst is used as the deodorizing means, and the treated water flows into the solid-liquid separation tank for settling and separating the solid content of the treated water flowing into the liquid treatment apparatus and after the inflow of the treated water. It is characterized in that the catalyst is heated for a certain period of time.

Further, the deodorizing means is characterized in that an electric power smaller than the heating electric power for deodorizing is supplied to the heating means of the catalyst even after the deodorizing by the heating catalyst is required.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. The same reference numerals as those in FIG. 11 indicate the same or corresponding parts, and the exterior case is omitted in the drawing.

The basic structure of this embodiment is the same as that of FIG. 11, and a solid-liquid separation tank 10 and a processing tank (aeration tank) are provided.
20, a sedimentation separation tank 30, a solid-liquid separation device 40, a composting (composting) device 50, a blower pump 60, an air flow path switching device 70, and the like.

The solid-liquid separation tank 10 has an inflow pipe 11 from a disposer (not shown) and a solid-liquid separation device 40 from the bottom of the tank.
An air lift pipe 12 for air-lifting crushed garbage, sludge, etc., an air lift pipe 31 for returning sludge from the sedimentation separation tank 30, and an air diffusing pipe 14 for cleaning the filter 13 are provided. Further, in the upper part of the tank, an outlet port 15 for flowing the supernatant liquid into the processing tank 20 through the filter 13 is provided.
Are formed. In this solid-liquid separation tank 10, a solid-liquid mixture containing crushed food waste, sludge and the like is separated into a solid content and a liquid content by natural sedimentation.

An aeration pipe 21 for aeration is arranged in the center of the bottom of the treatment tank 20, and an air supply pipe 71 from the air flow path switching device 70 is connected to the treatment tank 20. This air diffuser 21
On both sides of each of them, a string-like filter medium 22 as a carrier in which two rows of aerobic microorganisms inhabit is arranged. Further, an outlet 23 for letting the treated water flow out to the precipitation separation tank 30 is formed in the upper part of the tank, and a trap (partition plate) 24 for preventing the outflow of air to the solid-liquid separation tank 10 side is provided. Has been. In this treatment tank 20, the aerobic microorganisms inhabiting the string-shaped filter medium 22 are activated by the aeration treatment using the air diffuser 21 to decompose the organic matter components in the water to be treated.

Further, in the sedimentation separation tank 30, an air lift pipe 31 for returning the sedimentation sludge from the bottom of the tank to the solid-liquid separation tank 10 is provided. Further, a drain port 32 for letting out the supernatant liquid is formed in the upper part of the tank, and a drain pipe for sewage or the like is connected to the drain port 32. In this settling separation tank 30, surplus sludge generated in the processing tank 20 is settled and separated at the bottom of the tank by natural sedimentation.

The solid-liquid separation device 40 mechanically separates a solid-liquid mixture containing ground raw garbage, sludge, etc., which is air-lifted from the solid-liquid separation tank 10, into solid and liquid components, and the separated liquid component is solidified. It is returned to the liquid separation tank 10 and the solid content is composting device 5
Input to 0.

The composting device 50 decomposes the input solid content (organic matter) by microorganisms that live in the carrier that is stored in advance, and composts it.

Further, in the present embodiment, the intake port 62 on the upper surface side of the blower pump 60 is connected to the solid-liquid separation device 40 by the pipe 63, and the odor inside and around the solid-liquid separation device 60 is sucked and treated. The air is diffused from the aeration diffuser 21 in the tank 20 to deodorize.

Here, when air is supplied from the blower pump 60 to the air diffuser 21 in the processing tank 20 through the air flow path switching device 70 as shown in the figure, the odor in the solid-liquid separation device 40 becomes maximum. During the air lift transfer from the solid-liquid separation tank 10 and during the fixed time after the transfer, the air is supplied to the air diffuser 21 in the processing tank 20, and at other times than that, the normal aeration processing and precipitation of the processing tank 20 are performed. The sludge return air lift from the separation tank 30 and the air diffusion for cleaning the filter 13 of the solid-liquid separation tank 10 are switched by the air flow path switching device 70. Therefore, in this case, a blower pump for air lift transfer from the solid-liquid separation tank 10 to the solid-liquid separation device 40 is additionally required. Alternatively, a blower pump dedicated to aeration of the treatment tank 20 is separately provided, and this blower pump is connected to the solid-liquid separation device 40 via a pipe 63, and the other is used as one blower pump to use the air flow path switching device 70. You may change it by switching. That is, from the solid-liquid separation tank 10 to the solid-liquid separation device 4
Since it may be necessary to simultaneously perform air lift transfer to 0 and air diffusion in the solid-liquid separation device 40 to the treatment tank 20, it is necessary to use separate blower pumps.

Although not shown in the drawing, a control unit including a microcomputer for controlling the entire system and an operation display unit for displaying various operations and status are provided, and the blower pump 60 and the air flow described above are provided. Road switching device 7
0, the solid-liquid separation device 40 and the like are also controlled by the control unit.

In the above structure, waste water containing crushed food waste from the disposer and domestic waste water from the kitchen are introduced into the solid-liquid separation tank 10 through the inflow pipe 11, and the crushed food waste and sludge separated by sedimentation here It is put into the solid-liquid separation device 40 by the air lift pipe 12.

At this time, the odor that flows into the solid-liquid separation device 40 along with the crushed food waste, sludge, etc. is discharged by the blower pump 6.
0 is sucked through the pipe 63 and diffused from the aeration diffuser 21 in the processing tank 20. In this way, by sucking air from the solid-liquid separation device 40 to diffuse the air into the treatment tank 20, the odor component can be deodorized by dissolving and processing the odor component in water.

On the other hand, the solid-liquid mixture charged into the solid-liquid separation device 40 is separated into a solid content and a liquid content as described above, the liquid content is returned to the solid-liquid separation tank 10, and the solid content is composted. It is put into the composting device 50 and composted by the organic substance decomposition treatment by microorganisms. Further, the supernatant liquid of the solid-liquid separation tank 10 flows out to the processing tank 20 through the filter 13, and the organic component is decomposed by the microorganisms inhabiting the string-like filter medium 22 by the aeration process by the air diffuser 21. Then, the treated water from the treatment tank 20 flows into the sedimentation separation tank 30 to separate the sludge by sedimentation, and the supernatant liquid is discharged from the drainage port 32 to the sewage or the like through the drainage pipe. The sludge settled in the settling separation tank 30 is returned to the first-stage solid-liquid separation tank 10 through the air lift pipe 31, and is introduced into the solid-liquid separation device 40 through the air lift pipe 12 together with the crushed food waste as described above to be collected.

By the way, as described above, the solid-liquid separation device 4
When the blower pump 60 used for aeration of the treatment tank 20 is also used for sucking the air in 0, in order to suppress internal corrosion due to odorous components, the solid-liquid separation device 40 is removed from the solid-liquid separation device 40 only when the air is lifted from the solid-liquid separation tank 10. It is also conceivable to adopt a configuration in which suction is performed.

FIG. 2 is a block diagram showing another embodiment of the present invention in which this is embodied, and the same reference numerals as those in the above embodiment indicate the same or corresponding portions.

In the present embodiment, the flow passage switching valve 64 is provided in the pipe 63 described above, and the flow passage switching valve 64 is switched to a place other than the solid-liquid separation device 40 except during the air lift time to the solid-liquid separation device 40. It is designed to suck outside air from. As a result, corrosion inside the blower pump 60 due to odorous components can be suppressed.

FIG. 3 is a constitutional view showing still another embodiment of the present invention, and the same reference numerals as those in the above embodiment indicate the same or corresponding portions.

In this embodiment, a composting device 50 communicating with the solid-liquid separation device 40 is provided with a catalyst 51b heated by a heater 51a and a heated catalyst deodorizing device 51 having an exhaust fan 51c. In addition, the trap 24
A pipe 52 is provided for sucking the air in the treatment tank 20 partitioned by the above into the heating catalyst deodorizing device 51.

As a result, the air inside and around the solid-liquid separation device 40 (solid-liquid separation tank 10, etc.) is introduced into the heated catalyst deodorization device 51 together with the air in the treatment tank 53 of the composting device 50, and is further trapped. Processing tank 2 divided by 24
Since the air of 0 is introduced into the heating catalyst deodorizing device 51 through the pipe 52 and is efficiently deodorized by the heating catalyst 51b, almost all odors can be deodorized by one heating catalyst deodorizing device 51.

Further, in the above structure, as shown in FIGS. 4 and 5, by heating the catalyst 51b for a certain period of time during air lift to the solid-liquid separation device 40 or during inflow of crushed food waste, It is possible to efficiently deodorize odors and prevent them from being emitted to the outside, while suppressing power consumption, which reduces running costs.

In this case, the air lift to the solid-liquid separation device 40 is periodically (for example, 3 times) at a predetermined time interval.
Since it is performed every 0 minutes), the catalyst 51b may be heated during the operation of the air lift and for a fixed time after the operation.
Considering the rise from 200 to 300 ° C,
As shown in FIG. 5, during a certain time before and after the air lift,
The heating power is supplied.

Further, when crushed food waste flows from the disposer, by detecting that the operation switch of the disposer is turned on and turning on the heating power, the disposer is driven and the crushed food waste is fixed through the pipe. Liquid separation tank 10
The heating power can be supplied before flowing into the.

Further, in the above, the wastewater flows into the solid-liquid separation tank 10 by natural flow from the disposer, but the discharge port of the disposer and the inflow pipe 11 into the solid-liquid separation tank 10 are at substantially the same height, or If it is higher than the discharge port of the disposer, it is not possible to use the natural flow, so it is necessary to interpose a relay pump tank between them. In this case, the catalyst 51b may be heated by detecting that the water level sensor (float switch) for operating the pump of the relay pump tank is turned on. Also,
Even when sludge is returned from the sedimentation separation tank 30 to the solid-liquid separation tank 10 by a regular air lift, there is a fear that odor is emitted due to the air pressure. Similarly, it is preferable to heat the catalyst 51b to deodorize it.

Further, as shown in FIG. 6, by supplying a certain amount of electric power to the heater 51a of the catalyst 51b and preheating it even during the deodorization unnecessary time, it is possible to shorten the rise time at the time of deodorization. This is effective also in the case of the air lift which is regularly performed as shown in FIG.
This is particularly effective because the rise time can be shortened when the water to be treated flows from the disposer or the relay pump tank that is not regularly performed.

In each of the above embodiments, the case where the solid processing apparatus is the composting apparatus 50 has been described, but the present invention can be applied to the case where the solid processing apparatus is an apparatus for drying food waste.

By the way, the processed product of such a solid processing apparatus accumulates as composted chips and dried products, and therefore needs to be replaced or discarded. At the time of replacement or disposal, the solid processing device connected to the solid discharge part of the solid-liquid separation device 40 is removed, but the odor on the wastewater processing device side is emitted from the removed opening, and the vicinity of the installation site It causes problems such as odor problems and attracts pests.

FIG. 7 and FIG. 8 are views showing the structure and operation of the essential parts of an embodiment that solves the above problems, and the same reference numerals as in the above embodiment indicate the same or corresponding parts.

In the present embodiment, the outer case around the composting device 50 is eliminated, and the outer case 80 of the waste water treatment device 100 for accommodating the solid-liquid separation tank 10, the treatment tank 20, the precipitation separation tank 30 and the like described above. Solid-liquid separation device 40
For storing the composting device 50 outside the outer case 80
Are detachably connected via a tubular connecting portion 90. Then, in the outer case 80, the deodorizing device 41 that sucks the air in the solid-liquid separating device 40 and deodorizes with the heating catalyst.
Is provided.

The connecting portion 90 extends from the solid discharging portion 42 of the solid-liquid separator 40 in the outer case 80 to the outer case 8.
0 and a discharge tube 91 extended downward, and this discharge tube 91
And a connecting pipe 92 that is fitted to the outside of the casing so as to be capable of expanding and contracting. The inner diameter of the connecting pipe 92 is set so that the connecting pipe 92 fits into the discharge pipe 91 without a gap. Further, the upper lid 54 of the composting device 50 is formed with an opening (not shown) into which the connecting pipe 92 can be inserted with a sufficient margin.

As shown in FIG. 8, the connecting pipe 92 is provided with the composting device 5 at a position slightly lower than the central portion in the vertical direction.
A flange-shaped connecting portion flange 93 larger than the zero opening portion is formed, and an operation handle 94 at the time of expansion and contraction operation is provided at the upper end portion. Further, on the lower surface side of the connecting portion flange 93, a cushion body 9 made of sponge or the like is provided over the entire circumference.
5 is attached, the connecting portion flange 93 vigorously hits the upper lid 54 of the composting device 50 to damage them, or a gap or the like is formed between the connecting portion flange 93 and the upper lid 54 of the composting device 50. It does not happen.

On the other hand, on the side of the composting device 50, a connection detecting sensor S for detecting the connection state of the connecting portion 90 is attached. This connection detection sensor S is, for example,
A magnet (not shown) embedded in the lower portion of the connecting pipe 92 or attached to the coupling flange 93.
And a reed switch or the like attached to the composting device 50 side corresponding to the magnet.

When the connection detection sensor S detects the connection release state (see FIG. 8) of the connection portion 90,
The control unit on the side of the composting device 50 controls so as to stop the driving of the composting device 50 (for example, the operation of the stirring motor of the stirring body, the heater, the fan, etc.).

Further, the control unit on the side of the composting device 50 and the control unit on the side of the wastewater treatment device 100 are connected via a communication means such as wireless, and the connection detection sensor S
When the uncoupling state of the connecting portion 90 is detected, the solid content is transported from the solid-liquid separation device 40 to the composting device 50, and the solid-liquid separation tank 10 is interlocked with the driving stop of the composting device 50. To stop the transport of the solid-liquid mixture from the solid-liquid separator 40 to the solid-liquid separator 40 by turning on the operation of the deodorizer 41 or control the operation mode to the strong mode.

As a result, the inside of the waste water treatment equipment 100 covered with the outer case 80 becomes negative pressure, and the outside air is sucked from the opening at the lower end of the disconnected connection part 90 as shown by the arrow, and the solid discharge part. It passes through the solid-liquid separation device 40 from 42, is deodorized by the deodorizing device 41, and is then discharged to the outside of the outer case 80.

As described above, when the connected state of the connecting portion 90 is released during maintenance such as chip replacement of the composting device 50, the deodorizing device 41 provided on the wastewater treatment device 100 side is operated or deodorized. By switching the operation mode so as to increase the treatment capacity of the device 41, the problem that the odor on the wastewater treatment device 100 side is emitted from the opening of the connecting portion 90 from which the composting device 50 is removed does not occur.

In the above embodiment, the case where the solid processing apparatus is the composting apparatus 50 is shown, but the same operation and effect as above can be obtained even if the apparatus for drying food waste is disposed, and the dried product is discarded. At the time of maintenance, etc., the problem that the odor on the side of the waste water treatment device 100 is released does not occur.

By the way, as described above, if the discharge port of the disposer and the inflow port of the waste water treatment device are substantially the same height, or if the inflow port of the waste water treatment device is higher than the discharge port of the disposer, the natural flow down is performed. Since it cannot be used, it is necessary to interpose a relay pump tank between them.

FIG. 9 and FIG. 10 are an overall configuration diagram and a block diagram of a food waste processing system in which a relay pump tank is interposed, and the same reference numerals as those in the above-described embodiment indicate the same or corresponding portions.

In the figure, a disposer 2 for crushing food waste is attached to a drain 1b of a sink 1a of a kitchen sink 1 installed indoors.

In the drainage pipe 3 connected to the discharge port of the disposer 2, a U-shaped trap 3 for water sealing is provided on the way.
a is formed and is connected to the inflow pipe 4a of the relay pump tank 4 which is buried outdoors, and the inflow port 4b is formed in the upper part of the side wall of the relay pump tank 4.

In the relay pump tank 4, a relay pump (pressure pump) 4c and a water level sensor (float switch) 4d.
Is provided, and the discharge pipe 4e connected to the discharge port of the relay pump 4c is connected to the wastewater treatment device 100 installed on the ground via the upper lid 4f of the relay pump tank 4.

The treated water from the wastewater treatment equipment 100 is discharged via the drainage pipe 5 to the discharge basin 6 buried near the wastewater treatment equipment 100. A sewage pipe 7 is connected to the discharge basin 6, so that the treated water discharged from the wastewater treatment device 100 is discharged to the sewage pipe 7 through the discharge basin 6.

Further, an overflow port 4g is formed in the upper portion of the side wall of the relay pump tank 4 at a position higher than the maximum water level of the relay pump tank 4 during normal operation of the relay pump 4c and the water level sensor 4d. Mouth 4g
To the above-mentioned discharge basin 6 is provided with a downward slope.

The lower end of the drainage pipe 5 from the wastewater treatment device 100 is always submerged in the discharge basin 6 to form a water seal trap 5a, and the sewer pipe 7 is bent downward in the discharge basin 6. By configuring the water-sealed trap 7a so that it is always submerged in water, it is possible to prevent odorous gas and insects from the sewer pipe 7 from entering the wastewater treatment device 100 and the relay pump tank 4.

In the above structure, during normal operation of the relay pump 4c and the water level sensor 4d, wastewater containing crushed food waste crushed by the disposer 2 and normal domestic wastewater generated in the kitchen run from the drainage pipe 3 to the inflow pipe 4a. When it flows into the relay pump tank 4 through the relay pump tank 4 and the water level in the relay pump tank 4 becomes a certain level or higher, the water level sensor 4d is turned on and the relay pump 4c is driven. The wastewater pumped by the relay pump 4c is conveyed to the wastewater treatment device 100 via the discharge pipe 4e. The treated water that has been purified by the wastewater treatment device 100 as described above flows out through the drainage pipe 5 into the discharge basin 6 and into the sewer pipe 7.

On the other hand, conventionally, when some abnormality is detected in the wastewater treatment device 100, the user is notified of the abnormality and the operation switch of the disposer 2 is turned on.
Even if it is N, it is not operated. In that case, the domestic wastewater that has flowed into the relay pump tank 4 is discharged from the overflow port 4g of the relay pump tank 4 to the sewer or the like. This is because although the wastewater of the disposer 2 just before the occurrence of the abnormality remains in the relay pump tank 4, the amount thereof is small, and after the occurrence of the abnormality, the wastewater of the crushed garbage of the disposer 2 does not enter, so the concentration as a load is low, This is because there is no problem if it is directly discharged into the sewer.

However, the relay pump 4 in the relay pump tank 4
When c is broken or the water level sensor 4d attached to the relay pump tank 4 is broken, water is not sent from the relay pump tank 4 to the wastewater treatment device 100, and is discharged to the sewer as it is.

As one of the conventional determination methods for the above-mentioned abnormality, even after the water level sensor 4d is turned on and the relay pump 4c is operated to send out the water to be treated in the relay pump tank 4, Only when the water level sensor 4d did not switch off, it was judged to be abnormal. Therefore, when the water level sensor 4d remains off, it is considered that the water level is not required to operate the pump, and no abnormality is noticed forever. Therefore, there is a problem that the disposer 2 can be used even if such an abnormality occurs, and the crushed food waste discharged from the disposer 2 is discharged untreated to the sewer or the like.

Another conventional determination method is to provide the relay pump tank 4 with two or more water level sensors.
That is, the upper water level sensor is attached to a relatively upper portion of the relay pump tank 4, and the lower water level sensor is attached to a lower portion thereof. When the water level sensor operates, the relay pump 4c is turned on, and when the water level decreases, the sewage level sensor is turned off. The combination of these two water level sensors allows the following judgment. That is, it is normal when both the water level sensor and the sewer level sensor are OFF, normal when the water level sensor is OFF and the sewer level sensor is ON, and normal when the water level sensor and the sewer level sensor are both ON. If the sensor is ON and the sewage level sensor is OFF, it is determined to be abnormal.

However, even when the judgment is made by these combinations, if the OFF state of the water level sensor does not change,
It was regarded as normal, and even in this case, the disposer 2 could be used even if an abnormality had occurred, and there was a problem that the crushed food waste discharged from the disposer 2 was discharged untreated to sewers and the like. .

Therefore, in this embodiment, although the means for detecting the inflow of water into the relay pump tank 4 can detect that water is flowing into the relay pump tank 4, the relay pump can be detected. When the rise in the water level of the relay pump tank 4 cannot be detected from the water level sensor 4d attached to the tank 4, it is determined that an abnormality has occurred, the abnormality is notified, and the disposer 2 does not operate even if the operation switch is turned on.

As a means for detecting the inflow of water into the relay pump tank 4, a water supply detection sensor is provided when the disposer 2 is an automatic water supply system.

In this case, the timing at which the water level sensor 4d attached to the relay pump tank 4 can detect the rise of the water level is calculated based on the water supply amount detected by the water supply detection sensor for the automatic water supply of the disposer. If the rise in water level cannot be detected even at the timing of addition, it is determined to be abnormal.

Further, as a means for detecting the inflow of water into the relay pump tank 4, a water supply detection sensor may be provided in the water supply pipe or faucet of the water supply.

As a means for detecting the inflow of water into the relay pump tank 4, when the ON time of the disposer 2 is determined by automatic water supply, the flow rate calculated based on the ON number of times and the ON time of the disposer 2. From the relay pump tank 4
The timing at which the water level rise of the water level sensor 4d attached thereto can be detected is calculated, and if the water level rise cannot be detected even at a time when a margin is added to the timing, it is determined to be abnormal.

As described above, the means for detecting the inflow of water into the relay pump tank 4 can detect that the water is flowing into the relay pump tank 4, even though the water is flowing into the relay pump tank 4. When the rise of the water level in the relay pump tank 4 cannot be detected from the attached water level sensor 4d, it is judged as an abnormality, the abnormality is notified, and the disposer 2 is not operated even if the operation switch is turned on. In this way, since it is possible to determine the abnormality of the relay pump tank 4 by detecting the inflow of water into the relay pump tank 4, the disposer 2 can be detected without knowing that the abnormality has occurred in the relay pump tank 4. Can be prevented from being used and unlimited. As a result, it is possible to prevent the crushed food waste discharged from the disposer 2 from being discharged to sewers or the like without being treated.

Even if the water supply is used, it is not drained to the outlet 1b of the sink 1a of the kitchen sink 1 and is received in a container or the like and thrown to another place, or even if the water supply is not used There is a case where the water received in the container from the container is brought and flown to the discharge port 1b, so that it is necessary to consider these as allowable values in the determination of abnormality.

[0084]

As described above, according to the present invention, a solid-liquid separator for separating a solid-liquid mixture containing crushed food waste into a solid content and a liquid content, and a solid processing apparatus for treating the separated solid content. In a food waste treatment system including a liquid treatment device that treats the separated liquid component, air in the solid-liquid separation device is sucked into a treatment tank for aerating the water to be treated in the liquid treatment device. By providing the air diffuser for diffusing, the odor in the solid-liquid separation device can be efficiently deodorized.

The air diffuser sucks the air in the solid-liquid separator and diffuses the air into the treatment tank only when the solid-liquid mixture flows into the solid-liquid separator and only for a certain time after the end of the inflow. As a result, the internal corrosion of the blower pump or the like due to the odorous component can be suppressed.

On the other hand, a solid-liquid separator for separating a solid-liquid mixture containing crushed food waste into a solid content and a liquid content, a solid processing apparatus for treating the separated solid content, and a liquid for treating the separated liquid content. In the food waste treatment system including a treatment device, the solid treatment device is provided with a deodorizing means for deodorizing the solid treatment device by sucking the air in the solid treatment device together with the air in the solid treatment device. The odor inside and around the device can be deodorized together with the odor inside the solid processing device.

Further, the deodorizing means sucks and deodorizes the air generated by the aeration of the treatment tank for aerating the water to be treated in the liquid treatment apparatus, thereby deodorizing the odor generated by the aeration treatment of the treatment tank. can do.

A heating catalyst is used as the deodorizing means, and the catalyst is heated at the time of inflow of the solid-liquid mixture into the solid-liquid separator and for a certain period after the end of the inflow, whereby the solid-liquid separator is heated. It is possible to efficiently deodorize the odors inside and around the odors, prevent the odors from being emitted to the outside, and suppress the power consumption, so that the running cost can be reduced.

Further, a heating catalyst is used as the deodorizing means, and when the water to be treated flows into the solid-liquid separation tank for settling and separating the solid content in the water to be treated flowing into the liquid treatment apparatus and after the inflow of the treated water. By heating the catalyst for a certain period of time, it is possible to efficiently deodorize the odor generated when the water to be treated flows into the solid-liquid separation tank, prevent the odor from being emitted to the outside, and reduce power consumption. Therefore, the running cost can be reduced.

Further, the deodorizing means supplies a power smaller than the heating power for deodorizing to the heating means of the catalyst even when the deodorizing by the heating catalyst is required, thereby increasing the start-up time at the time of deodorizing. It can be shortened.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention, (a)
Is a top view and (b) is a vertical sectional view.

FIG. 2 is a vertical cross-sectional view showing the configuration of another embodiment of the present invention.

FIG. 3 is a partially cutaway front view showing the configuration of still another embodiment of the present invention.

FIG. 4 is a diagram showing an energization pattern 1 of the catalyst heater according to the above embodiment.

FIG. 5 is a diagram showing an energization pattern 2 of the catalyst heater according to the above embodiment.

FIG. 6 is a diagram showing an energization pattern 3 of the catalyst heater according to the above embodiment.

FIG. 7 is a front view showing the overall configuration of another embodiment.

FIG. 8 is an enlarged view of an essential part showing the action at the time of releasing the connection in the embodiment.

FIG. 9 is an overall configuration diagram of a food waste processing system when a relay pump tank is interposed.

FIG. 10 is a block diagram of the same.

FIG. 11 is a diagram showing a configuration of a conventional example, (a) is a top view,
(B) is a longitudinal sectional view.

[Explanation of symbols]

2 Disposer 10 Solid-liquid separation tank 12 Air lift pipe 14 Air diffuser for cleaning 20 Treatment tank (aeration tank) 21 Air diffuser for aeration 22 String filter media 24 traps 30 sedimentation tank 31 Airlift pipe for sludge return 40 Solid-liquid separation tank 41 Deodorizer 50 Composting device 51 Heating catalyst deodorizer 51a heater 51b catalyst 51c exhaust fan 52 plumbing 60 blower pump 62 Intake port 63 piping 64 flow path switching valve 70 Air flow path switching device 80 exterior case 90 Connection 100 wastewater treatment equipment S connection detection sensor

Continued front page    (72) Inventor Yoshihiro Tanimoto             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Kozo Akamatsu             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Isao Yoneda             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Hiroyuki Takami             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F-term (reference) 4D003 AA08 AB02 BA02 CA07 DA09                       DA11 EA09 EA17                 4D004 AA03 AA04 CA04 CA13 CA19                       CA48 CB04 CB06 CB11 CB32                       CB44 CB45 CB50 CC02 CC08

Claims (7)

[Claims] 1. A solid-liquid separator for separating a solid-liquid mixture containing crushed food waste into a solid content and a liquid content, a solid processing apparatus for treating the separated solid content, and a liquid for treating the separated liquid content. In a food waste treatment system including a treatment device, an air diffuser for sucking air in the solid-liquid separation device and aerating the treated water in the liquid treatment device to aerate the treated water is provided. Garbage disposal system characterized by. 2. The air diffuser sucks air in the solid-liquid separator and diffuses the air into the treatment tank only when the solid-liquid mixture flows into the solid-liquid separator and only for a certain time after the end of the inflow. The food waste processing system according to claim 1, wherein: 3. A solid-liquid separator for separating a solid-liquid mixture containing crushed food waste into solid and liquid components, a solid processing device for treating the separated solid components, and a liquid for treating the separated liquid components. In the garbage processing system including a processing device, the solid processing device is provided with a deodorizing means for sucking and deodorizing the air in the solid-liquid separation device together with the air in the solid processing device. Garbage disposal system. 4. The garbage processing system according to claim 3, wherein the deodorizing means deodorizes by sucking air generated by aeration of a treatment tank for aerating the water to be treated in the liquid treatment apparatus. . 5. The heating catalyst is used as the deodorizing means, and the catalyst is heated at the time of inflow of the solid-liquid mixture into the solid-liquid separator and for a certain period of time after the inflow is completed. 3. The garbage processing system according to claim 3 or 4. 6. A heating catalyst is used as the deodorizing means, and when the treated water flows into the solid-liquid separation tank for settling and separating the solid content of the treated water flowing into the liquid treatment apparatus, and after the completion of the inflow. The food waste treatment system according to any one of claims 3 to 5, wherein the catalyst is heated for a certain period of time. 7. The deodorizing means energizes the heating means of the catalyst with less electric power than the heating power during deodorization, except for the time required for deodorization by the heating catalyst. The garbage processing system according to claim 6.