KR20100032524A - Method and apparatus for disposing food garbage - Google Patents

Abstract

In the food waste treatment apparatus and method, there is provided a food waste treatment apparatus and method for effectively removing water vapor and odor generated from the decomposed food waste by reacting household food waste with a reactant to decompose into steam. The household food waste processing apparatus according to the present invention is provided on the body portion where food waste is supplied and decomposed into the food waste, and is formed on the top of the body portion, and the food waste disposal portion is placed on the side of the body portion after food waste is disassembled. An openable recovery part for exchanging the remaining reactant in the body part, a heating part for heating the food waste and the reactant inside the body part, a drying part for allowing the food waste decomposed in the vapor state to be dried and deodorized by a high temperature heating element, It is attached to the outside of the body and the neutralizing agent supply unit for supplying the organic fermentation enzyme neutralizing agent or chlorine-based neutralizing agent for decomposition and odor removal of food waste, the stirring unit located inside the body portion and stirring the food waste and the reactant, and is disposed outside the body portion Intermittently dispose of food waste decomposed into steam Emissions, including parts and includes a food waste discharge as a vapor state filter unit to remove water vapor by the high temperature and remove fine vapor and odor remaining. According to the food waste treatment apparatus and method according to the present invention, the food waste is chemically decomposed, leaving little residue after decomposition, and effectively preventing the occurrence of odor, and has an effect of treating food waste in a short time.

Description

Apparatus and method for treating food waste {Method and Apparatus for Disposing Food Garbage}

The present invention relates to an apparatus and method for treating food waste, and more particularly, to an apparatus and method for treating food waste in which food waste is decomposed by heating and stirring with a reactant, and at the same time, the odor of the decomposed food waste is effectively deodorized and removed. .

In general, food waste left at home contains a lot of water and easily decays, causing bad smells, which contaminates rivers and soils. Even when the food waste is to be disposed of by incineration, disposal, or the like, a problem arises in that such work cannot be performed smoothly due to moisture contained in a large amount of food waste.

In order to solve the above problems, there is a method of treating household food waste, such as fermentation, drying, grinding drying, etc., but the processing time is too long, the power consumption is expensive, and the odor generated during the treatment is not good, and drying There are several problems, including secondary pollution during post-discharge and landfilling.

Specifically, most of the conventional household food waste processing apparatus is used to simply dispose of the crushed food waste by reducing the crushing, fermentation, and drying of the food waste or to reduce the discharge, but according to the conventional food waste processing apparatus, The odors generated when crushing, fermenting and drying the food wastes contained in large quantities were not blocked, and these odors were avoided for home use, and the processing time was long, and there was a problem of noise. .

In order to shorten the occurrence of odors and time, a method of treating food waste by microbial decomposition method was implemented, but in this case, microorganisms to prevent odors should be separately introduced. The disadvantage is that the waste disposal cost is consumed.

In addition, according to the conventional food waste treatment apparatus, not only is it impossible to completely remove the moisture contained in the large amount of food waste, but there is an inconvenience of continuously processing a large amount of grains left after the food waste treatment.

Therefore, there is a need for a new food waste treatment technology that ensures the efficiency of food waste treatment operations and suppresses the occurrence of odor.

Therefore, the object of the present invention is to effectively remove the water contained in the food waste and chemically completely decompose the food waste, there is little residue left in the particulate state even after the food waste treatment, and do not need to separate the residue at low cost at home It is to provide an apparatus and method for treating food waste without fear of secondary pollution.

It is also an object of the present invention to provide a household food waste treatment apparatus and method that does not give a disgust by effectively deodorizing and removing odor generated during food waste treatment.

Still another object of the present invention is to provide a household food waste treatment apparatus and method that can continuously process food waste at low cost by repeatedly reusing a chemically decomposing reactant.

Food waste processing apparatus according to the present invention is the food waste is fed into the body portion is disassembled, the food waste is formed in the upper portion and the food waste is put into the food waste input portion, the food waste decomposition is located on the side of the body portion After the completion of the open and close recovery unit for exchanging the remaining reactant in the body portion, the heating unit for heating the food waste and the reactant inside the body portion, located inside the body portion, the food waste and the reactant The food waste decomposed in the steam state includes a stirring part and a discharging part intermittently discharging the food waste decomposed in the steam state so as to be dried and deodorized at a high temperature by a separate drying unit.

Food waste treatment apparatus according to the present invention further comprises a neutralizing agent supply for supplying a deodorizing neutralizer for removing the smell of the food waste, the neutralizing agent supply is disposed outside the body portion.

Preferably, the deodorizing neutralizer may be an organic fermentation enzyme or a chlorine neutralizing agent.

The drying part is dried and deodorized while food is decomposed into a high temperature heating element, and water vapor passes, and the dried and heated air is fed back into the body to be used as energy for decomposition heating.

The discharge unit is provided with a dehumidifying deodorizing filter, the dehumidifying deodorizing filter is formed in a fiber-like fiber structure, it is possible to filter the dust and water from the decomposed food waste discharged.

Preferably, the discharge port is formed in the lower portion of the body portion, the discharge port may be configured to be open and close.

Preferably, the discharge portion may include a three-way control valve to be re-injected or discharged to the body portion.

The content ratio of the body of the food processor is a structure in which the decomposition and evaporation are optimized within 60% when the mixing ratio of the reactant and the treatment is 1: 2.5.

Preferably, the stirring unit includes a rotating shaft, a driving motor for rotating the rotating shaft and a rotating screw mounted to the rotating shaft, and the driving motor starts operation when the food waste input unit is closed.

Preferably, the rotating screw includes at least one pair of blade connecting bars extending radially from the rotation axis and a blade connected to the ends of the blade connecting bars, wherein the pair of blade connecting bars are opposed to each other. Is placed.

Preferably, the rotating screw is provided with blade connecting bars having different lengths, so that the food waste is smoothly stirred in the radial direction.

Preferably, the blade has an inclination angle of 15 degrees to 35 degrees with respect to the axial direction of the rotation axis, neighboring blades have an inclination angle in the opposite direction to each other, so that the food waste is smoothly stirred in the axial direction. More preferably, the angle of inclination of the blade is 25 degrees.

Preferably, the fixed blade is attached to the inside of the body and includes a structure for cutting the length of food waste when the rotary blade and the intermediate blade.

The heating unit is a hot wire heater formed on at least one of the lower side and the side of the body portion.

The food waste treatment method according to the present invention comprises the steps of providing an inorganic compound which is a food waste decomposition reaction agent, providing food waste, heating and stirring the food waste and the reactant to promote decomposition and evaporation of the food waste. The food waste is decomposed by molecular ring decomposition, evaporating the food waste decomposed in a vapor state, passing through a high temperature heating element, drying and deodorizing, and evaporating the food waste Supplying a deodorizing neutralizer to the dehumidifying and deodorizing food waste through a dehumidifying deodorizing filter having a fiber structure of a mesh type, and intermittently discharging the dehumidified and deodorized food waste, Disassemble, deodorize and discharge.

Preferably, the food waste may be provided by grinding.

Preferably, the stirring is performed by the rotation of the rotating screw mounted on the rotating shaft, the rotating screw includes at least one pair of blade connecting bars having different lengths with blades at the end, the food waste and the reaction Allow me to stir evenly radially about the axis of rotation.

Preferably, the neighboring blades have different inclination angles such that the food waste and the reactant are stirred evenly in the axial direction of the rotation axis.

According to the food waste treatment apparatus and method according to the present invention, the water contained in the food waste is effectively removed by a chemical reaction and at the same time completely decomposes the food waste, the food waste in the form of particles almost after the food waste treatment operation is completed. This can reduce the labor costs and costs associated with additional processes that require continuous disposal of residues.

In addition, according to the food waste treatment apparatus and method according to the present invention, it is possible to effectively deodorize and remove the odor generated during food waste treatment to treat food waste without aversion.

In addition, according to the food waste treatment apparatus and method according to the present invention, since the reactive agent that chemically decomposes the food waste can be reused repeatedly, there is an effect that the food waste can be continuously processed at low cost.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under the above-mentioned rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

1 is a block diagram showing a schematic view of the food waste treatment apparatus 10 of the present invention.

Food waste treatment apparatus 10 of the present invention is formed on the body portion 100, the body portion 100, the food waste is fed and decomposed inside the food waste inlet 200, the body portion into which food waste is introduced Located at the side of the (100) is located in at least one of the recovery portion 300, the side or lower portion of the body portion 100 to replace the end of life reagent in the body portion 100 after food waste decomposition is completed Located in the heating unit 400 for heating the food waste and the reactant, the body portion 100 is disposed inside the stirring unit 500 and the body portion 100 to evenly stir the food waste and the reactant, Neutralizer supply unit 600 for supplying the deodorizing neutralizer to remove odor, the drying unit 800 to dry and deodorize the food waste in the vapor state through a high temperature heating element and the food waste decomposed in the steam state Group comprises a discharge unit 700 for intermittently drawn out.

The body part 100 is a hexahedral container with an empty inside. The upper portion of the body portion 100 is open to put food waste.

In the present embodiment, the lower inner surface of the body portion 100 is formed in a square shape, but is not necessarily limited thereto. For example, the lower inner surface of the body portion 100 may be formed in a cylindrical shape in order to smoothly stir the food waste and the reactant by the rotating screw of the stirring unit 500.

The upper portion of the body portion 100 is provided with a food waste input unit 200 into which food waste is input. Food waste input unit 200 is configured as an openable closing port, it is configured to open when the food waste is put in and closed when dismantling food waste. As a result, the inside of the body part 100 is blocked from the outside, and while the food waste is decomposed, the inside of the body part 100 maintains a high temperature state, and prevents food waste and the reactant from leaking to the outside.

The fixed blade is installed inside the body portion 100. The fixed blade is disposed in a position that does not interfere with the rotation of the stirring unit 500, when the food waste is agitated by the stirring unit 500, the role of cutting the fine or long food waste to finely crushed Do it.

As shown in FIG. 1, a hinge portion 220 is installed at one side of the food waste input unit 200, whereby the food waste input unit 200 is opened and closed.

A sensor is installed at the hinge part 220, and when the food waste input unit 200 is closed, the food waste processing apparatus 10 may be automatically operated.

Below the food waste input unit 200 may be a crusher (not shown). The food waste may be crushed finely by a grinder and provided into the body part 100. Hard food waste such as crustaceans and animal bones may be finely crushed by a crusher and processed by the food waste processing apparatus 10 according to the present invention.

The recovery part 300 is installed at the side of the body part 100. The recovery unit 300 is configured to be open and closed to maintain a closed state while stirring the food waste and the reactant. After the food waste treatment is completed, the residues remaining in trace amounts and the end of life reagents may be recovered through the recovery unit 300. In addition, the internal cleaning may be performed when the food waste processing apparatus 10 is not operated through the recovery unit 300.

A reactive agent that decomposes food waste is an inorganic compound, and serves to decompose molecular rings of food waste. As the reactant, a ceramic material in which alumina (Al ₂ O ₃ ) and silicon tetraoxide (SiO ₄ ) are mixed may be used. The reactant may be introduced into the body part 100 through the food waste input part 200 or the recovery part 300.

The heating part 400 is disposed on the side or bottom circumference of the body part 100. In this embodiment, the heating unit 400 is a hot wire heater. In FIG. 1, the heating unit 400 is disposed at one side of the body part 100, but is not necessarily limited thereto, and it may be obvious that the heating part 400 may be disposed at the plurality of side parts as well as the lower part of the body part 100. .

The food waste and the reactant inside the body part 100 are maintained at a high temperature by the heating unit 400, whereby the food waste reacts smoothly with the reactant and decomposes into steam. In addition, the heating unit 400 to dry the food waste decomposed to remove the odor at high temperature.

The body part 100 is provided with a stirring part 500 for stirring the food waste and the reactant. The stirring unit 500 includes a rotating shaft 520, a drive motor 540 and a rotating screw 560, a detailed description thereof will be described later.

The neutralizing agent supply unit 600 is disposed outside the body portion 100, and the neutralizing agent supply unit 600 includes a deodorizing neutralizing agent for removing odor generated when food waste is decomposed. Deodorizing neutralizer may be used a chlorine neutralizer or an organoenzyme neutralizer. Only a small amount of deodorizing neutralizer can remove odor and sterilize food waste. The odor of food waste is primarily deodorized by the deodorizing neutralizer supplied from the neutralizing agent supply unit 600.

The drying unit 800 performs drying and deodorization by passing the decomposed water vapor through a high temperature heating element through a blower fan. The drying unit 800 is connected to the discharge unit 700 to discharge the dried and deodorized steam or to circulate to the body portion 100 through a connecting pipe.

Discharge part 700 is installed in the lower portion of the body portion 100, and includes a dehumidifying deodorizing filter 720 and the outlet 740.

The dehumidifying deodorizing filter 720 is formed in a fiber structure of a mesh shape, and is in contact with the outlet 740 inside the body part 100. The dehumidifying deodorizing filter 720 filters the dust and water from the food waste decomposed in the steam state. The dehumidifying deodorizing filter 720 may be detachable, and after long term use, the dehumidifying deodorizing filter 720 may be desorbed to remove dust and water and reused or replaced with a new dehumidifying deodorizing filter 720.

The outlet 740 is intermittently opened and closed at predetermined intervals, and the food waste decomposed in the vapor state is dried by the heating unit 400 and deodorized and then intermittently discharged through the outlet 740.

Discharge unit 700 may further include a blowing fan (not shown) to facilitate the discharge of the decomposed food waste.

The discharge part 700 is provided with a three-way control valve 760, and discharged and deodorized water vapor by the three-way control valve 760 or the ash to the body portion 100 through the connecting pipe 780. Input. Three-way control valve 760 may be automatically controlled in conjunction with the opening and closing of the outlet (700).

2 is a side view of the stirring unit 500 according to the present invention, Figure 3 is a front view thereof.

One end of the rotating shaft 520 included in the stirring unit 500 is connected to the driving motor 540, and has a cylindrical long shaft shape. The rotating shaft 520 receives the driving force from the driving motor 540 and continuously rotates in the body part 100.

The rotating screw 560 is mounted in the longitudinal direction of the rotating shaft 520. Rotating screw 560 includes at least one pair of blade connecting bars (5621 to 5624) extending in the radial direction of the rotating shaft 520, the blades (5641 to 5644) at the ends of the blade connecting bars (5621 to 5624) Each is provided.

The blade connecting bars 5251 and 5623, 5622, and 5624, which are paired to face each other at 180 degrees, may have the same length or may have different lengths. In the present embodiment, as shown in Figure 3, the first blade connecting bar (5621) and the third blade connecting bar (5623) are disposed in a straight line facing each other 180 degrees, the first blade connecting bar (5621) ) Is formed longer than the second blade connecting bar (5623). In addition, the second blade connecting bar 5562 and the fourth blade connecting bar 5624 are also disposed in a straight line to face each other 180 degrees, their length is the same as each other, shorter than the first blade connecting bar (5621) It is formed longer than the third blade connecting bar (5623).

When the food waste and the reactant are stirred by the rotation of the rotary shaft 520, due to the different lengths of the blade connecting bars 5251 to 5624, the food waste and the reactant may be smoothly stirred in the radial direction of the rotary shaft 520. Can be.

For example, the food waste and the reactant are stirred by the first blade connecting bar 5221 so as to push outward from the rotating shaft 520, and the food waste and the reactant are rotated by the third blade connecting bar 5562. 520) while stirring.

2, the blades 5561 to 5644 have an inclination angle of 15 degrees to 35 degrees with respect to the axial direction of the rotation shaft 520, and preferably have an inclination angle of about 25 degrees. As shown in FIG. 2, the blades adjacent to each other at intervals of 90 degrees have the inclination angles opposite to each other.

For example, the first blade 5561 is inclined about 25 degrees clockwise, while the second blade 5564 is inclined about 25 degrees counterclockwise.

When the food waste and the reactant are stirred by the rotation of the rotating shaft 520, the neighboring blades have the inclined angles in different directions, so that the food waste and the reactant may be smoothly stirred in the axial direction of the rotating shaft 520. Can be. For example, if the rotating shaft 520 is rotated counterclockwise, the first blade 5651 will stir so that the food waste and the reactant are pushed in one direction (to the left in FIG. 2), and the second blade 5564 ) Will agitate the food waste and reactant to push in the other direction (to the right in FIG. 2).

Food waste treatment apparatus 10 according to the present invention may further include a safety device for preventing damage caused by overload.

Hereinafter, the food waste treatment method according to the present invention will be described in detail. Figure 4 is a block diagram schematically showing a food waste treatment method of the present invention.

Through the food waste input unit 200 or the reactive agent input unit 300, the reactive agent, which is an inorganic compound, is introduced into the body unit 100 (S810). Before or after adding the reactant, the preheating process may be performed by the heating unit 400.

Subsequently, the food waste is introduced into the body portion 100 through the food waste injecting unit 200 (S820). Food wastes may be food waste before cooking such as vegetables, meat, fish, and various internal organs, and leftovers such as food waste after cooking, and food waste such as crustaceans and animal bones may also be introduced after grinding. .

The injected food waste and the reactant are heated by the heating unit 400 and are stirred by the stirring unit 500 (S830).

As described above, power is supplied to the heating wire heater, which is the heating unit 400, to maintain the inside of the body 100 at a high temperature, and the driving motor 540 rotates the rotation shaft 520, thereby inside the body 100. Allow the contents of to stir evenly. Due to the shape of the rotating screw 560, the food waste is evenly stirred in the radial and axial directions of the reactant and the rotating shaft 520. This heated stirring process can generally last about 3 hours.

Food waste is evaporated while being cured and crushed into flour-like rice cake by continuous heating and stirring process (S840). Specifically, the molecular ring of the food waste is decomposed by the reactant, and the decomposed molecules are reacted with hydrogen to become a vapor state of water or vaporize into a gas state.

Looking at the food waste treatment principle by the molecular ring decomposition method of the present invention, as follows.

Plants and animals that die in the natural world are decomposed and returned to soil after a certain period of time. This principle is because plants and animals have their own self-dissolving enzymes and bacteria. The apparatus and method for treating food waste of the present invention uses the principle of this natural cycle to atomically decompose and vaporize by reacting the self-dissolving catalyst and food waste with each other to break the molecular ring.

Specifically, by artificially generating hydrogen as a self-dissolving catalyst by the food waste treatment apparatus and method of the present invention, each element of the food is repeatedly bonded and decomposed, and high heat is generated in this process. Due to the instantaneous high heat generated, the elements of the food waste are vaporized by water and carbon dioxide while bonding and decomposition are repeated.

Food waste decomposed in the steam state is discharged out of the body portion 100 through the discharge portion 700, and only the reactant remains inside the body portion 100. After the food waste decomposition reaction is completed, the reactant can be reused to decompose newly introduced food waste.

Food waste decomposed in the steam state is sterilized by removing some of the odor by the deodorizing neutralizer (S850). Even small amounts of deodorizing neutralizers can remove odors and sterilize.

Subsequently, the food waste in the vapor state is dried at a high temperature by the dryer 800 (S860). The steam is dried and deodorized by high temperature drying.

Food waste in the water vapor state is passed through the dehumidification deodorization filter 720 to remove dust and residual water (S870). Dehumidification and deodorization process once again removes the odor remaining in food waste.

Dehumidified, deodorized gaseous food waste is discharged to the outside of the body portion 100 when the outlet 740 is intermittently opened (S880). Since the discharged food waste is deodorized by a deodorizing agent, a high temperature drying and a deodorizing filter during deodorization, almost no odor remains, and because the food waste is intermittently discharged by the outlet 740, it is unpleasant to the human body due to the odor. Does not occur.

According to the food waste treatment apparatus 10 and the method according to the present invention, not only can the food waste be decomposed in a state where odors have been removed, but also after the treatment, there is almost no residue left in the apparatus so that a separate process must be continuously processed. No need to add

After the food waste treatment apparatus 10 and the method according to the present invention several times or dozens of food wastes remaining in the body portion 100 is discharged through the recovery unit 300, such waste is recovered Can be used as organic fertilizer.

In general, the food waste treatment apparatus 10 according to the present invention may optimize the decomposition of food waste by injecting about 60% of the food and the reactant of the internal capacity of the body portion 100.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Included in this specification.

1 is a block diagram showing a schematic view of the food waste treatment apparatus according to the present invention;

2 is a side view of the stirring section according to the present invention;

3 is a front view of the stirring section according to the present invention;

4 is a block diagram showing a schematic flow of the food waste treatment method according to the present invention;

<Explanation of symbols for the main parts of the drawings>

10: food waste processing apparatus 100: the body portion

200: food waste input unit 300: recovery unit

400: heating part 500: stirring part

520: shaft 540: drive motor

560: rotating screw 600: neutralizer supply unit

700: outlet 720: dehumidification deodorizing filter

740: outlet 800: drying unit

Claims (15)

In the food waste treatment apparatus, A body portion in which food waste is fed into and decomposed; It is formed in the upper portion of the body, food waste input closing the food waste input unit; Located on the side of the body portion, after the food waste decomposition is completed, a small amount of residue remaining in the body portion is recovered and the retractable recovery unit is exchanged; A heating unit for heating the food waste and the reactant inside the body portion; Located in the body portion, the stirring portion for stirring the food waste and the reactant; A drying unit for drying the water and deodorizing the food waste by passing the decomposed food waste into a high temperature heating element; And An discharge part intermittently discharging the food waste decomposed in the steam state; Food waste treatment apparatus comprising a. The method of claim 1, Food waste treatment apparatus disposed outside the body portion, further comprising a neutralizer supply unit for supplying a deodorizing neutralizer for removing the odor of the food waste. The method of claim 2, The deodorizing neutralizer is a food waste treatment apparatus, characterized in that at least one of a chlorine-based neutralizer or an organic fermentation neutralizer. 4. The method according to any one of claims 1 to 3, The discharge part is provided with a dehumidifying deodorizing filter, the dehumidifying deodorizing filter is formed of a fiber-like fiber structure, the food waste treatment apparatus characterized in that to filter the dust and water of the decomposed food waste discharged. 4. The method according to any one of claims 1 to 3, The discharge port of the discharge portion is formed in the lower portion of the body portion, the food waste processing apparatus, characterized in that the discharge opening is configured to be open. 4. The method according to any one of claims 1 to 3, The stirring unit includes a rotating shaft, a drive motor for rotating the rotating shaft and a rotating screw mounted to the rotating shaft, The driving motor is a food waste processing apparatus, characterized in that for starting the operation when the food waste inlet is closed. The method of claim 6, The rotating screw has at least a pair of blade connecting bar extending in the radial direction from the rotation axis (bar); And It includes a blade connected to the end of the blade connecting bar, The pair of blade connecting bars are disposed in the food waste processing apparatus, characterized in that disposed opposite. The method of claim 7, wherein The rotating screw is provided with blade connecting bars having different lengths, the food waste processing apparatus, characterized in that the food waste is smoothly stirred in the radial direction. 9. The method according to claim 7 or 8, The blade has an inclination angle of 15 degrees to 35 degrees with respect to the axial direction of the rotating shaft, neighboring blades have an inclination angle in the opposite direction, so that the food waste is smoothly stirred in the axial direction food waste treatment, characterized in that Device. 4. The method according to any one of claims 1 to 3, The heating unit is a food waste treatment apparatus, characterized in that the hot wire heater formed on at least one of the lower side or the side of the body portion. 4. The method according to any one of claims 1 to 3, Further comprising a fixed blade installed inside the body portion, The fixed blade is a food waste processing apparatus, characterized in that for cutting the food waste stirred by the stirring unit. In the food waste treatment method, Providing an inorganic compound which is a food waste decomposition reagent; Providing food waste; Heating and stirring the food waste and the reactant to promote decomposition and evaporation of the food waste; Heating and stirring the food waste is decomposed and evaporated by molecular ring decomposition; Supplying a deodorizing neutralizer to the food waste decomposed in steam; Drying and deodorizing the food waste decomposed into steam; Dehumidifying and deodorizing the food waste through a dehumidifying deodorizing filter having a mesh structure of the fiber; And Intermittently discharging the dehumidified and deodorized food waste; Including, food waste treatment method, characterized in that to disassemble and deodorize the food waste. 13. The method of claim 12, The food waste treatment method of the food waste, characterized in that provided by grinding. The method according to claim 12 or 13, The stirring is performed by the rotation of the rotating screw mounted on the rotating shaft, the rotating screw includes at least one pair of blade connecting bar having a length different from each other having a blade at the end, the food waste and the reactant is the rotating shaft Food waste treatment method characterized in that the stirring is evenly in the radial direction. The method of claim 14, Adjacent blades have different inclination angles, so that the food waste and the reactant are stirred evenly in the axial direction of the rotation axis.

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