JPH06238256A - Garbage disposer - Google Patents

Abstract

PURPOSE:To eliminate the lowering of treatment capacity accompanied by the temp. lowering of a treatment medium and to always stably perform the decomposition treatment of garbage in constitution performing the treatment of garbage by utilizing the decomposition due to bacteria in the treatment medium within a treatment tank. CONSTITUTION:The garbage A charged from a garbage charging port 24 is ground by the grinder 3 driven by a grinding motor 31 to be introduced into a treatment tank 4 from a discharge port. The garbage A introduced into the treatment tank 4 is mixed with a treatment medium B by the rotation of a stirring rod 41 corresponding to the rotation of a mixing motor 43 and the resulting mixture is allowed to stand to be subjected to decomposition treatment by bacteria in the treatment medium B. A shower head 60 is arranged above the treatment tank 4 to be connected to a water pipe 6 through a branch pipe 61 and a water supply valve 62 and a heater 63 are arranged on the way of the branch pipe 61. The internal temp. of the treatment tank 4 is detected by a temp. sensor 12 not only to open the water supply valve 62 but also to supply a current to the heater 63 on the basis of the detected result and the water introduced into the branch pipe 61 is heated by the heater 63 to be sprinkled over the treatment medium B in the treatment tank 4 through the shower head 60 to heat the treatment medium B.

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 with microorganisms.

[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.

In the conventional kitchen waste disposal, generally, a drainage basket is installed at the drainage port of the sink, and the kitchen waste that is thrown in with the drainage is captured in this drainage basket, and is appropriately taken out and disposed of together with other refuse. Is done by. In Western countries, a kitchen waste crusher (disposer) is installed at the drainage port of the sink, and the kitchen waste that is thrown into the drainage port is crushed by the operation of this disposer. The garbage treatment method is widely adopted.

However, in the former method, when the kitchen waste trapped in the drainage basket is taken out, the bad odor generated by the rotten kitchen waste floats in the kitchen, and inconveniences such as spillage of sewage in the sink of the sink occur. In order to maintain a good sanitary environment in the kitchen, there is a problem that a large amount of labor is required, such as frequently taking out and discarding the kitchen waste and washing the draining basket each time the kitchen is taken out.

On the other hand, the latter method is effective in maintaining a hygienic environment because the garbage is treated without staying, but the crushed kitchen waste is discarded into the sewage together with the drainage, so the sewer pipe This causes secondary inconveniences such as the blockage of the plant and the increase of the treatment load at the sewage treatment plant. Especially in Japan, where there are many combined sewer systems with rainwater, the public sewer system may be eutrophied due to the fact that overflow of inflow water may cause pollution of natural waters such as rivers and lakes. The amount of suspended solids (SS) and biochemical oxygen demand (BOD) in waste water to wastewater is strictly regulated, and wastewater from a disposer that contains crushed kitchen waste and is in a thick liquid state can meet the above regulations. In fact, disposer disposal is prohibited.

Further, in Japanese Patent Laid-Open No. 4-156959, the garbage thrown into the drainage port of the sink is drained while being conveyed by a screw, and is collected in the garbage bag attached to the discharge port at the end of the conveying path. Disclosed is a garbage disposal device configured to automatically seal a bag mouth when a predetermined amount of collection is reached. However, even when this garbage processing device is used, it is troublesome to take out and put in the garbage bag, and there is a risk that the garbage will remain in the midway of the transportation path and rot, and the transportation path, especially the discharge port. There is a problem that you have to clean the neighborhood frequently.

The applicant of the present application has already proposed a kitchen waste processing apparatus capable of solving the above-mentioned problems of kitchen waste processing. This is an apparatus having a simple structure in which the garbage thrown into the garbage throwing port is crushed by the crushing means, introduced into the processing tank, and mixed with the processing medium contained in the processing tank. The processing medium is wood chips such as sawdust, chaff,
It is a substrate for culturing microorganisms such as rice bran and soil, and an environment suitable for breeding various microorganisms (fungi) is formed inside the treatment tank containing this treatment medium. Thus, the garbage fragments introduced into the treatment tank and mixed with the treatment medium are mixed with these by the microorganisms introduced and propagated in the treatment medium to cause water (H ₂ O) and carbon dioxide (CO ₂ ). And decomposed into.

[0008] That is, in the case of using this garbage processing device, the user only needs to perform a simple operation of throwing the garbage into the garbage input port and feeding it to the crushing means connected to the input port. By disposing of the water generated as a result of the decomposition in the drainage pipe and also discharging carbon dioxide gas, the kitchen waste can be completely extinguished, and sanitary kitchen processing can be realized with a slight labor burden.

[0009]

In the garbage treating apparatus having the above-mentioned structure, the garbage treating ability is determined by the internal state of the treating tank, more specifically, the activity state of microorganisms in the treating medium inside the treating tank. Therefore, it is important to maintain the inside of the treatment tank in an environment suitable for the activity of microorganisms, and this environment is automatically adjusted by the activity of the microorganisms themselves.

That is, the activity of microorganisms requires an ambient temperature exceeding a predetermined lower limit temperature (around 5 ° C.) and an appropriate amount of water and oxygen, and the oxygen in these is as described above at the time of introducing garbage. It is incorporated into the treatment medium as appropriate by the mixing performed. In addition, the internal temperature of the treatment tank rises due to the heat generated by the decomposition of kitchen waste due to the activity of the microorganisms, and is maintained at a temperature that is sufficiently above the lower limit temperature, and the water content decomposes with the water content attached to the kitchen waste that is introduced. A proper amount is maintained by the water obtained as a product.

However, although the automatic adjustment as described above, particularly the maintenance of the proper temperature, can be performed well while the garbage is continuously supplied, the decomposition of the previously supplied kitchen is completed. Since the heat generation inside the treatment tank is stopped at this point, for example, in the case of use in a cold region where the outside temperature is low, when restarting after the garbage has not been input for a long period of time, etc. Since the internal temperature is excessively low and the microorganisms in the treatment medium are in the dormant state, the decomposing ability of the kitchen waste is significantly reduced.

Since the activity state of the microorganisms in the treatment medium cannot be visually judged by the user, when the garbage is continuously fed without noticing the deterioration of the treatment capacity due to the diapause of the microorganisms, the treatment tank is Garbage that is not completely decomposed inside gradually accumulates, further lowering the processing capacity due to the deterioration of the environment, and eventually causing inconvenience such as the need to clean the inside of the processing tank, which is originally unnecessary. .

The present invention has been made in view of the above circumstances, and is capable of always performing a stable decomposition of garbage without causing a decrease in processing capacity due to a decrease in internal temperature of the processing tank. An object is to provide a processing device.

[0014]

Means for Solving the Problems The kitchen waste processing apparatus according to the present invention comprises a kitchen machine which is crushed by a crushing means and crushed by a crushing means, and the crushing means is introduced into a processing tank connected to the crushing means. Is a garbage treatment device for decomposing and treating the garbage by the action of microorganisms in the treatment medium, the temperature sensor detecting an internal temperature of the treatment tank, and based on the detection result. Characterized in that it comprises a determining means for determining whether or not the heating of the processing medium is necessary, and a hot water supplying means that operates according to the determination of the determining means and supplies hot water into the inside of the processing tank, In addition, the stirring means is operated for a predetermined time after the operation of the hot water supply means is completed.

[0015]

According to the present invention, the detection result of the temperature sensor is monitored, and when the temperature of the treatment medium is excessively lowered and the activity of microorganisms may be impaired, the hot water supply means operates so that the temperature of the inside of the treatment tank is increased. Hot water is supplied to heat the treatment medium without reducing the water content. Further, after supplying the hot water, the treatment medium is stirred by the operation of the stirring means to average the degree of heating inside the treatment tank, and air is taken into the treatment medium to prevent the inhibition of the activity of microorganisms due to lack of oxygen. .

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 and FIG. 2 are side sectional views showing an embodiment of the garbage processing apparatus according to the present invention (hereinafter referred to as the present apparatus).

In the figure, reference numeral 1 is a sink having a sink 2 on its upper part. A faucet W is attached above the sink 2, and the drainage port 20 opening at the bottom of the sink 2 is connected to a drainage pipe 23 via a drainage receiver 22. Drainage receiver 22
A draining basket 21 having a cylindrical shape with a bottom is detachably attached to the upper half part of the draining basket along the peripheral edge of the drainage port 20, and an opening is formed in the center of the bottom of the draining basket 21. Normally, the kitchen waste input port 24 is hermetically closed by a pusher 25 as shown in FIG.

Thus, the drainage used for cooking in the sink 2 flows into the drainage basket 21 from the drainage port 20 and passes through a large number of water holes formed on the peripheral surface of the drainage basket 21 to receive the drainage. The kitchen waste A, which flows into the inside 22 and is discharged to the drainage pipe 23, is introduced into the drainage port 20 together with this drainage, and is stored in the drainage basket 21 as shown in FIG.

The apparatus of the present invention is installed inside the sink 1 configured as described above, and a crusher 3 for crushing garbage
And a processing tank 4 for receiving the kitchen waste crushed by the crusher 3.

The crusher 3 is driven by the transfer pipe 30 which is installed substantially horizontally on one side of the drainage receiver 22, a crushing motor 31 fixedly provided at the base end of the transfer pipe 30, and the crushing motor 31. , A transfer screw that rotates around the axis inside the transfer tube 30
With 32 and. A receiving opening that opens upward is formed on the base end side of the transfer pipe 30, and the receiving opening is a draining basket.
It is connected to the kitchen throw-in port 24 opened on the bottom surface of 21 through a connecting pipe 26. Further, at the tip of the transfer pipe 30, a discharge port having a plurality of radially fixed fixed blades 33 is opened, and at the tip of the transfer screw 32 facing this discharge port, the transfer screw is provided. With the rotation of 32, the fixed blade 33
A rotary blade 34 that rotates while slidingly contacting with is attached.

On the other hand, the processing tank 4 is a storage container supported on a plurality of support legs 5, 5 ... Standing on the inner bottom surface of the sink 1, and the processing medium B is placed inside the processing tank 4. Is stored. The treatment medium B is a culture substrate that forms an environment suitable for the propagation of various types of microorganisms (fungi), and for example, wood particles that have been made porous by a predetermined treatment are used. Further, the processing tank 4 supports an end portion of the transfer pipe 30 of the crusher 3 on an upper portion of one side surface, and the discharge port at the end of the transfer tube 30 is located at an appropriate length inside the processing tank 4. It has been opened.

A stirring shaft 40 is rotatably supported at a substantially central portion inside the processing tank 4 so as to be rotatable about a substantially vertical axis, and the stirring shaft 40 is fixed on a top plate of the processing tank 4. Installed mixing motor 43
Is connected to the output end of. A stirring rod 41 formed by bending a wire into a spiral shape is coaxially fixed to the stirring shaft 40, and a plurality of flat stirring plates 4 are provided on the inner wall of the processing tank 4.
2, 42 ... Are provided so as to project inward at a position where they do not interfere with the stirring rod 41. Thus, when the stirring shaft 40 is rotationally driven by the rotation of the mixing motor 43, the processing medium B contained in the processing tank 4 rotates with the stirring shaft 40.
41 and the agitating plates 42, 42 fixed to the processing tank 4 synergistically mix them in the axial direction and the circumferential direction (vertical and horizontal directions).

Further, the treatment tank 4 is connected to the middle portion of the drainage pipe 23 by a communication pipe 45 connected to the bottom of the treatment bath 4 through a fine filter 44. A shower head 60 is fixed downward in the upper part of the inside of the treatment tank 4, and the shower head 60 is branched from the middle of the water pipe 6 connected to the faucet W, and an electromagnetic water supply valve is provided in the middle. A branch pipe including a heater 62 and a heater 63 wound around the outer circumference of the water supply valve 62 on the downstream side.
It is connected to the tip of 61. That is, the shower head 60,
The branch pipe 61, the water supply valve 62, and the heater 63 compose hot water supply means that is a feature of the present invention. When the water supply valve 62 is opened while energizing the heater 63, high-pressure water inside the water pipe 6 is used. Flows into the branch pipe 61, is heated by the heater 63 to become warm water, spreads by the action of the shower head 60, and is sprayed on the processing medium B in the processing tank 4 substantially uniformly.

FIG. 3 is a block diagram of the control system of the device of the present invention. Reference numeral 10 in the figure denotes an operation control unit using a microprocessor, and an operation switch 11 for an operation command is provided on the input side of the operation control unit 10 and a processing tank 4 as shown in FIGS. 1 and 2. Is connected to a temperature sensor 12 fixed inside.

On the other hand, on the output side of the operation control unit 10, the crushing motor 31 and the mixing motor 43 are connected via respective drive circuits, and the water supply valve 62 in the middle of the branch pipe 61 is connected via an exciting circuit. Further, the heater 63 in the middle of the branch pipe 61 is connected via an energizing circuit, and the crushing motor 31
The mixing motor 43 is driven according to the drive command given from the operation control unit 10, and the water supply valve 62 is operated by the operation control unit 10.
It is opened / closed according to the open / close signal given by
63 is adapted to generate heat in accordance with an energization command given from the operation control unit 10.

In the operation of the apparatus of the present invention constructed as described above, the pusher 25 is pulled out at the stage when the appropriate amount of kitchen waste A is captured in the draining basket 21 as described above, and the drainage is made to the kitchen waste input port 24 opened thereby. It is carried out by turning on the operation switch 11 while introducing the garbage A in the car 21.

The operation control unit 10 issues a drive command to the crushing motor 31 and the mixing motor 43 in response to the ON operation of the operation switch 11. The rotation of the crushing motor 31 in response to the drive command rotationally drives the transfer screw 32 of the crusher 3, and the rotation of the mixing motor 43 rotationally drives the stirring shaft 40 and the stirring rod 41 fixed to the stirring shaft 40.

The kitchen A introduced into the kitchen input port 24 is shown in FIG.
As shown in FIG. 4, the inside of the transfer pipe 30 is transferred toward the tip thereof by being guided to the receiving port of the crusher 3 through the connecting pipe 26 and rotating the transfer screw 32 located under the receiving port. . At this time, the pusher 25 is used to assist in the transfer to the transfer screw 32 by pushing the kitchen waste A introduced into the kitchen throwing port 24 downward as indicated by the arrow in FIG.

As the transfer screw 32 rotates, the rotary blade 34 attached to the tip also rotates, and the kitchen waste A transferred as described above is finely crushed by the rotary blade 34 and the fixed blade 33 slidingly contacting the rotary blade 34. The crushed fragments are introduced into the processing tank 4 through the discharge port at the tip of the transfer pipe 30. At this time, processing tank 4
In the above, the stirring rod 41 is rotating as described above, and the kitchen waste A introduced into the processing tank 4 has the stirring rod 41 and the stirring plates 42, 42 ...
Is mixed with the treatment medium B, which is being stirred by
Almost evenly distributed in the processing medium B.

The operation of the apparatus of the present invention as described above is stopped in response to the turning-off operation of the operation switch 11 performed by the user at the time when the introduction of the garbage A into the garbage insertion port 24 is completed. The operation control unit 10 issues a stop command to the crushing motor 31 after a lapse of a predetermined time from the time when the off operation is performed, and further issues a stop command to the mixing motor 43 after the lapse of the predetermined time. Due to this operation of the operation control unit 10, the transfer screw 32 of the crusher 3 continues to rotate for a predetermined time after the off operation, and the kitchen waste A introduced into the crusher 3 is transferred to the inside of the transfer pipe 30. Is reliably discharged into the processing tank 4 without remaining. Furthermore, the stirring rod 41 inside the processing tank 4 continues to rotate for a predetermined time after the discharge of the garbage A from the crusher 3 is completed, and the garbage A and the processing medium B are sufficiently mixed, and the last The kitchen waste A introduced in 1 does not stay near the discharge position from the crusher 3.

After the above operation, the operation control unit 10 is in a standby state waiting for the next ON operation of the operation switch 11,
The crusher 3 is kept in a stopped state, and the stirring of the processing medium B inside the processing tank 4 is not performed except for the case described later, and the garbage A is decomposed during this period. As described above, the treatment medium B stored in the treatment tank 4 is a microbial culture substrate that forms an environment suitable for the growth of microorganisms, and the fragments of the kitchen waste A mixed with the treatment medium B are owned by themselves. It is decomposed by various microorganisms (fungi) that are used, and microorganisms that have already propagated in the treatment medium B.

This decomposition is due to the process of spoiling the garbage A by the activity of the microorganisms in an anaerobic environment, and the activity of the microorganisms in the aerobic environment to convert the spoiled garbage A into water (H ₂
The process of decomposing into O) and carbon dioxide gas (CO ₂ ) is repeated. The aerobic environment is realized by the air in the upper space of the processing tank 4 being taken into the processing medium B by the rotation of the stirring rod 41 performed each time the garbage A is introduced, and the anaerobic environment is the standby state described above. It is gradually realized after the transition to the state.

That is, in the treatment medium B inside the treatment tank 4, by continuously feeding the kitchen waste A every day, the activity of the microorganisms in the anaerobic environment and the activity of the microorganisms in the aerobic environment are obtained. And the garbage A mixed with the treatment medium B are surely decomposed into water and carbon dioxide which are final products. Then, the water generated by this decomposition is discharged to the drainage pipe 23 through the communication pipe 45 at the bottom of the treatment tank 4, and the carbon dioxide gas is also the exhaust fan fixed to the upper portion of the treatment tank 4.
It is sucked into 46 and is discharged into the atmosphere or sewage connected to the end of the drain pipe 23.

When it is assumed that the garbage A is thrown in irregularly at home, the stirring rod 41 is rotated every predetermined time regardless of whether the garbage A is thrown in or not, and the treatment medium B is rotated.
It is advisable to stir the so that it takes in air. This can be easily achieved by the operation control unit 10 in the standby state issuing a drive command to the mixing motor 43 every predetermined time.

Further, in the apparatus of the present invention, the operation control section 10 in the standby state performs the following operation based on the detection result of the temperature sensor 12 connected to the input side. It should be noted that the temperature sensor 12 as shown in FIGS.
Is fixed at a position buried in the treatment medium B inside the treatment tank 4, and the temperature detected by the temperature sensor 12 is substantially the internal temperature of the treatment medium B, that is, the microorganisms in the treatment medium B. It is set to the ambient temperature.

The operation control unit 10 fetches the output of the temperature sensor 12 at an appropriate sampling period, compares it with a preset lower limit temperature, and detects the temperature detected by the temperature sensor 12, that is,
When the current internal temperature of the processing medium B is lower than the lower limit temperature, an opening command is issued to the water supply valve 62 connected to the output side and an energization command is issued to the heater 63.

The lower limit temperature to be compared is set on the basis of the temperature at which the microorganisms in the treatment medium B cease activity (around 5 ° C.), and below this, it is considered that the decomposition treatment capacity decreases. The temperature, the operation control unit 10, as a result of the comparison, if the current temperature is below the lower limit temperature,
It is determined that the treatment medium B needs to be heated in order to increase the activity of microorganisms, and the above-described operation is performed. By this operation, the heater 63 generates heat and the water supply valve 62 is opened. Therefore, the hot water heated by the heater 63 is supplied to the inside of the treatment tank 4 through the shower head 60, and the treatment tank 4 is treated. The stored treatment medium B is heated substantially evenly by hot water sprayed from above, and the internal temperature of the treatment medium B is raised to a temperature suitable for the activity of microorganisms.

When only the heating of the processing medium B is intended, it is also achieved by disposing a heater inside or outside the processing tank 4 and directly heating the processing medium B by the heat generated by the heater. However, in this case, it is difficult to evenly heat the entire treatment medium B, and the water contained in the treatment medium B evaporates with heating, so that an appropriate amount of water necessary for the activity of the microorganisms can be maintained. become unable. In the apparatus of the present invention, since the heating is performed by spraying warm water from the shower head 60, the internal temperature of the entire processing medium B can be uniformly increased without reducing the water content inside.

The warm water sprayed from the shower head 60 is
It passes through the layer of the treatment medium B, reaches the bottom surface of the treatment tank 4, and is discharged to the drainage pipe 23 through the communication pipe 45 connected to the bottom surface. During this period, the wood chips made porous as described above. The treatment medium B consisting of is heated by contact with hot water, takes in a part of the hot water passing therethrough, and automatically adjusts its water content to an appropriate value (60 to 65%). That is, in the device of the present invention, by supplying hot water for heating the treatment medium B, the secondary effect that the water content in the treatment medium B is also optimized can be obtained.

Further, the operation control unit 10 includes a water supply valve 62 and a heater.
After the output to 63 is completed, after a predetermined time elapses, a short-time drive command is issued to the mixing motor 43, and the stirring rod 41 is rotated to stir the processing medium B in the processing tank 4. . The predetermined time is set in consideration of the time required to discharge the hot water sprayed from the shower head 60, and the stirring causes the heating degree of the processing medium B due to the contact with the hot water to be entirely within the processing tank 4. And the air is entrained in the processing medium B.

By the above operation, the proper temperature is maintained in the treatment medium B in the treatment tank 4 and the proper amount of water and air are present, which creates a desirable environment for the activity of microorganisms. The kitchen waste A, which is stably maintained and is introduced into the treatment tank 4 in the next operation, is rapidly and surely decomposed by the highly active microorganisms.

The configuration of the crusher 3 and the processing tank 4 and the configuration of the stirring means inside the processing tank 4 are not limited to the above-described configurations. For example, the crusher 3 is provided at the kitchen feed port 24. It is also possible to use a disposer type crusher 3 which is provided with a rotary blade which rotates at high speed in a horizontal plane and which is adapted to crush the kitchen waste A by the rotation of the rotary blade and to send it outward in the radial direction. As the tank 4, a rotary processing tank 4 that rotates around a horizontal axis or a vertical axis may be used, and the processing medium may be agitated inside by rotating the processing tank 4 itself.

In the present embodiment, the case where the sink 1 is formed integrally with the lower part has been described, but the device of the present invention can be formed independently of the sink 1.
In this case, since the size of the processing tank 4 is not limited by the internal volume of the sink 1, it is possible to realize an apparatus having a large processing capacity. However, in this case, extra labor is required to capture the garbage generated in the sink 1, carry it to the installation position of the device of the present invention, and input it, and also a water source for supplying water to the hot water supply means.

[0044]

As described above in detail, in the apparatus of the present invention, the internal temperature of the processing tank for containing the processing medium is detected by the temperature sensor, and hot water is supplied to the inside of the processing tank based on the detection result. The internal temperature of the bath can be maintained at a temperature suitable for the activity of microorganisms without reducing the water content of the treatment medium, and since the treatment medium is agitated after the supply of hot water, the degree of heating inside the treatment bath is Equalized,
The present invention has excellent effects such that a sufficient amount of air is taken into the treatment medium, a desirable environment for the activity of microorganisms can be stably maintained, and the garbage is decomposed reliably.

[Brief description of drawings]

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

FIG. 2 is a diagram showing an operating state of the garbage processing apparatus shown in FIG.

FIG. 3 is a block diagram of a control system of the device of the present invention.

[Explanation of symbols]

 1 sink 2 sink 3 crusher 4 processing tank 10 operation control unit 11 operation switch 12 temperature sensor 21 drainer basket 24 kitchen waste input port 31 crushing motor 32 transfer screw 33 rotary blade 34 fixed blade 41 stirring rod 42 stirring plate 43 mixing motor 60 shower Head 62 Water supply valve 63 Heater A Kitchen waste B Treatment medium

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Fukumoto 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kenji Aida 2-Chome Keihan Hondori Moriguchi, Osaka Sanyo Denki Incorporated (72) Inventor Hiroyuki Sasakura 2-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kenji Toyooka 2-18-2 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. The kitchen waste thrown in from the kitchen throwing port is crushed by a crushing means, introduced into a processing tank connected to the crushing means, and mixed with a processing medium by an operation of an agitating means, in the processing medium. Is a kitchen waste processing apparatus for decomposing the kitchen waste by the activity of microorganisms, the temperature sensor detecting the internal temperature of the processing tank, and the necessity of heating the processing medium is determined based on the detection result. A garbage treatment device comprising: a determination unit and a hot water supply unit that operates according to the determination of the determination unit and that supplies hot water into the processing tank. 2. The kitchen waste processing apparatus according to claim 1, wherein the stirring means is operated for a predetermined time after the operation of the hot water supply means is completed.