JP4562014B2 - Food waste processing method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention separates food waste such as expired foods discharged from convenience stores, etc., and cooking residues discharged from food factories, etc. into edible parts and non-edible parts. The present invention relates to a food waste processing method and apparatus which can be recycled as livestock feed.
[0002]
[Prior art]
Traditionally, expired foods discharged from convenience stores, food factories, etc., for example, food waste such as packed lunches and sandwiches, edible and non-edible parts (packaging materials, chopsticks, plastic spoons, etc.) ) And reusing the edible portion as livestock feed, etc., after opening the packaging of the food to be discarded by hand, separating it into an edible portion and a non-edible portion There is a dry process in which food or discarded food is dried together with the packaging material, crushed by a crusher, and then separated into an edible portion and a non-edible portion by a specific gravity difference using wind power.
[0003]
[Problems to be solved by the invention]
However, the conventional manual sorting method requires a lot of manpower and time, has a low sorting efficiency, is expensive, and is not suitable for processing a large amount of food waste.
In addition, the conventional dry process has a limit in the separation accuracy of the non-edible portion, and as a result, there is a problem that the separated edible portion cannot be used as feed.
[0004]
The present invention has been made in view of the above points, and its purpose is to improve the separation accuracy of the non-edible part and the recovery rate of the edible part, and the recovered edible part is effectively used as livestock feed, etc. It is an object of the present invention to provide a food waste processing method and apparatus which can be used in the present invention.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a food waste processing method for recycling food waste as feed or the like, wherein the food waste is disassembled and crushed in water to obtain a non-edible portion. The non-edible portion and the edible portion were separated into an edible portion and suspended in a dispersed state in the depth direction of the water due to a difference in specific gravity, a difference in followability to water flow, or a physical property difference , and were suspended in the water. After filtering a portion including an edible portion having a predetermined particle size together with water, separating the filtered portion into a granular solid and a foreign material lighter than the solid, and draining the separated granular solid The portion containing the edible portion of the granular solid is crushed in a slurry state without crushing foreign matter harder than the edible portion of the granular solid by a grinding machine , and the portion containing the edible slurry-like edible portion Characterized by separating edible components from That.
[0006]
The present invention also relates to a food waste treatment apparatus that recycles food waste as feed, etc., and disassembles and crushes the food waste into a non-edible part and an edible part by stirring in water. and, and, the non-edible portion and the difference in specific gravity edible portion, the difference in followability to water flow or physical properties difference by a predetermined particle that is suspended in the water causes suspended in a dispersed state in the depth direction of the water, A crushing / separating device having a screen that allows a portion including an edible portion having a diameter to pass with water, and a portion including the edible portion that has passed through the screen are mixed in a granular solid and the solid. A cyclone that separates into granular foreign matter, a second drum screen that drains the particulate solid separated by the cyclone, and a foreign matter that is harder than the edible portion of the granular solid drained by the second drum screen is crushed. Characterized in that it comprises a portion containing a soluble meal and slurried deface grinding machine, and a selective screen for separating only slurry allowed servings that were mashed in the grinding machine.
[0007]
In the method and apparatus of the present invention, the food waste introduced into the crushing / separating machine is disassembled and crushed by stirring in water and separated into a non-edible part and an edible part. The part is suspended in a dispersed state in the depth direction in water. The portion including the edible portion having a predetermined particle size suspended in water passes through the screen together with water, and is supplied to the cyclone, so that the centrifugal solid acts and the foreign matter lighter than the solid content. It is separated into. Then, after draining the separated granular solid, only the edible portion of the granular solid is crushed into a slurry by a pulverizer, and the edible edible portion is slurried by a selective screen. The edible portion and the straw portion are separated, and the slurry-like edible portion is extracted as feed.
Therefore, according to the present invention, the separation accuracy of the non-edible part can be improved, the mixing of the non-edible part into the edible part can be eliminated, and the recovery rate and concentration of the edible part can also be improved. Thus, the collected edible portion can be effectively used as livestock feed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory diagram showing the overall configuration of a food waste processing apparatus according to an embodiment of the present invention, and FIG. 2 is a flowchart showing a processing procedure of the food waste processing apparatus according to an embodiment of the present invention.
[0009]
Hereinafter, an example of the food waste treatment apparatus of the present invention will be described with reference to these drawings, and at the same time, an embodiment of the food waste treatment method of the present invention will also be described.
As shown in FIG. 1, the food waste treatment apparatus in this embodiment is separated by the separation plant unit 12 that separates the crushed food waste into a non-edible part and an edible part, and the separation plant part 12. A recovery plant unit 14 that recovers the edible portion as a slurry product is provided.
[0010]
The separation plant unit 12 includes a crushing / separating machine 121, a cyclone (cleaner) 122, a first drum screen 123, and a second drum screen 124. The recovery plant unit 14 includes a crushing machine 141, a selection screen 142, a brewing screen 143, and a squeezing machine 144.
[0011]
The crushing / separating machine 121 separates food wastes such as packed lunches and sandwiches into pieces by breaking up and crushing them in water and separating them into non-edible parts and edible parts. Food waste is roughly separated by floating in a dispersed state in the depth direction of water by difference in specific gravity, difference in followability to water flow, or physical property difference between non-edible part and edible part. An edible having a crushing / separating tank 1212 having an input port 1211 and a mesh screen 1213 provided on one side of the crushing / separating tank 1212 at an intermediate position in the vertical direction and through which an edible portion having a predetermined particle diameter can pass. A partial housing portion 1214, a stirring member 1215 that is positioned on the front surface of the screen 1213 in the crushing separation tank 1212 and is rotatably supported, and a drive motor 1216 that rotates the stirring member 1215 are provided.
The stirring member 1215 crushes the food waste, stirs the treated water containing the food waste, and cleans the screen 1213.
[0012]
The cyclone (cleaner) 122 includes an edible portion having a predetermined particle size sent from the edible portion accommodating portion 1214 of the crushing / separating device 121 and granular foamed polystyrene or plastic mixed in the edible portion. The upper part of the cyclone (cleaner) 122 and the edible part accommodating part 1214 are connected by a supply pipe 1223 via an on-off valve 1221 and an electromagnetic on-off valve 1222. Has been.
[0013]
The first drum screen 123 separates foreign matter (non-edible part) such as plastic separated from the cyclone (cleaner) 122 and moisture, and the foreign matter is washed with water to adhere to the foreign matter. A drum-type fluid filter 1231 that rotates and removes components, a washing water jet nozzle 1232 disposed above the drum-type fluid screen 1231, and a housing 1233 disposed on the lower surface side of the drum-type fluid fluid 1231, The intermediate portion of the type-fluid 1231 and the cyclone (cleaner) 122 is connected to a supply pipe 1236 via an on-off valve 1234 and an electromagnetic on-off valve 1235. Are connected by a supply pipe 1218 through an electromagnetic on-off valve 1217. The washing water injection nozzle 1232 is connected to the white water storage tank 16 via the pump 18, and the housing 1233 and a white water tank 20 described later are connected by a pipe 1237. As a result, the foreign matter (non-edible portion) separated by the drum-type fluid 1231 is discharged to the soot storage tank 1238, and the food component (white water) that has passed through the drum-type fluid 1231 passes from the housing 1233 through the tube 1237 to the white water tank 20 is discharged.
[0014]
The second drum screen 124 separates the edible portion having the predetermined particle diameter separated from the water by the cyclone (cleaner) 122 and the moisture. The rotating drum-type fluid 1241 (with a finer mesh than the drum-type fluid 1231). And a washing water injection nozzle 1242 disposed on the top of the drum-type fluid 1241 and a housing 1243 disposed on the lower surface side of the drum-type fluid 1241, and between the drum-type fluid 1241 and the lower end of the cyclone (cleaner) 122. Is connected from a supply pipe 1246 through an on-off valve 1244 and an electromagnetic on-off valve 1245. The washing water injection nozzle 1242 is connected to the fresh water storage tank 22 through a pump 24, and a pipe 1247 is provided between the housing 1243 and the white water tank 20. It is connected. In addition, the edible portion having a predetermined particle size separated by the drum-type fluid 1241 is discharged as a raw material to the raw material tank 1248, and the water (white water) that has passed through the drum-type fluid 1241 passes from the housing 1243 through the pipe 1247 to the white water tank 20. To be discharged. In the raw material tank 1248, a stirrer 1249 for stirring the separated raw material is provided.
[0015]
The crushing machine 141 of the recovery plant unit 14 is separated by the second drum screen 124, crushes the raw material (food) A supplied from the raw material tank 1248, and foreign matter harder than the raw material (food) A, for example, the raw material ( (Food) It is configured so that particulates such as a chopstick and plastic contained in A are not crushed. The hopper 1411 of the crusher 141 and the raw material tank 1248 are connected by a raw material supply pipe 1414 via a pump 1412 and an on-off valve 1413. Also. The slurry-like raw material crushed by the pulverizer 141 is stored in a tank 1415. Reference numeral 1416 denotes a drive mechanism of the crusher 141.
[0016]
The selection screen 142 separates the crushed slurry-like raw material from edible components and particles such as chopsticks and plastics. The housing 1421 and the housing 1421 have a primary chamber 1422 and a secondary chamber. 1423, a screen 1424 for passing the edible portion of the ground slurry material, a stirring member 1425 rotatably mounted in the primary chamber 1422 so as to face the screen 1424, and the stirring member 1425. A drive motor 1426 is provided.
The primary chamber 1422 of the selection screen 142 and the tank 1415 are connected by a supply pipe 1429 via a pump 1427 and an opening / closing valve 1428, and the secondary chamber 1423 of the selection screen 142 is completed by a supply pipe 28 via an opening / closing valve 26. It is connected to the raw material tank 30.
[0017]
The brewing screen 143 separates the cocoon component separated by the selection screen 142 into a cocoon fraction and a raw material component. The housing 1431 and the housing 1431 are divided into a primary chamber 1432 and a secondary chamber 1433. A screen 1434 for passing the raw material components from the components, a stirring member 1435 rotatably attached to the primary chamber 1432 so as to face the screen 1434, and a drive motor 1436 for rotating the stirring member 1435 are provided.
The primary chamber 1432 of the brewing screen 143 is connected to the primary chamber 1422 of the selection screen 142 by the supply pipe 36 via the on-off valve 32 and the electromagnetic on-off valve 34, and the secondary chamber 1433 of the brewing screen 143 is connected to the on-off valve 38 and the electromagnetic The feed pipe 42 is connected to the raw material tank 1248 through the on-off valve 40.
The squeezing machine 144 performs dehydration of the slag separated by the squeezing screen 143, and is composed of, for example, a screw type press. The squeezing machine 144 is squeezed by a supply pipe 46 via an opening / closing valve 44. The delivery screen 143 is connected to the primary chamber 1432.
[0018]
The white water tank 20 collects white water discharged from each part of the separation plant unit 12 and the recovery plant unit 14. The white water tank 20 and the upper part of the crushing separation tank 1212 are connected via a pump 48 and an on-off valve 50. A part of white water connected to the supply pipe 52 and collected in the white water tank 20 can be re-supplied to the crushing separation tank 1212. Further, a spill pit 54 for storing excess white water collected in the white water tank 20 is connected to the white water tank 20 via a water flow pipe 56.
In FIG. 1, reference numeral 58 denotes a separation tank for separating scum from white water stored in the spill pit 54, and white water in the spill pit 54 is supplied to the separation tank 58 through a supply pipe 62 by a pump 60. It is configured.
The scum separated in the separation tank 58 is discharged to the movable receiving tank 64, and the white water excluding the scum is supplied to the white water storage tank 16 by the pump 66.
[0019]
Next, the processing operation of the food waste processing apparatus configured as described above will be described with reference to FIG.
First, the crushing / separation tank 1212 of the crushing / separating machine 121 is filled with water (fresh water and white water) to a predetermined level, and the water is sequentially replenished as the separation process proceeds. In such a state, food waste such as packed lunch boxes, sandwiches, and resin bag-packed cooking residues discharged from a cooking facility is fed into the crushing and separation tank 1212 from the food waste inlet 1211 and the stirring member 1215 is driven by a drive motor. By rotating at 1216, the food waste is disassembled and crushed in water to separate it into a non-edible part and an edible part, and the edible part is dispersed in water (step S1). At this time, the crushed food waste is roughly separated into a non-edible part and an edible part due to, for example, a difference in specific gravity, a difference in followability to a water flow, or a difference in physical properties. That is, non-edible parts such as foamed polystyrene and resin sheets, which are packaging materials, float on the water surface of the crushing separation tank 1212, and rice and other edible parts float in the water located in the middle of the crushing separation tank 1212. In addition, a substance having a higher specific gravity than rice and other edible parts (mainly corresponding to the non-edible part) is settled to the bottom side of the crushing separation tank 1212.
[0020]
Non-edible portions such as foamed polystyrene and plastic sheets that have floated on the water surface of the crushing / separating tank 1212 are automatically discharged out of the crushing / separating tank 1212 by a discharge means (not shown). Further, the non-edible portion and the edible portion floating in the water in the crushing / separating tank 1212 are separated by the screen 1213 into a substance having a particle size that passes through the mesh of the screen 1213 and a substance that cannot pass (step S2). Then, the substance mainly composed of the edible portion having a particle diameter that has passed through the screen 1213 flows out into the edible portion accommodating portion 1214 together with the treated water (step S3), and is further opened from the edible portion accommodating portion 1214. It is supplied to the cyclone 122 through the on-off valve 1221, the electromagnetic on-off valve 1222, and the supply pipe 1223. In addition, a substance mainly composed of a non-edible portion having a particle diameter that cannot pass through the screen 1213 is supplied to the first drum screen 123 through the electromagnetic open / close valve 1217 and the supply pipe 1218 in the open state together with the treated water (step S4).
[0021]
In the cyclone 122, a substance mainly composed of an edible portion having a particle diameter that has passed through the screen 1213 flows out in the inner tangential direction of the cyclone 122 together with water, and is caused by a centrifugal force generated by a high-speed swirling flow. It is separated into granular solids and foreign matters (non-edible parts) such as foamed polystyrene and plastic lighter than the solids (step S5). The separated granular solid is deposited as a precipitate in the lower part of the cyclone 122 (step S6), and the drum-type fluid of the second drum screen 124 is passed through the open / close valve 1244, the electromagnetic switch 1245, and the supply pipe 1246. 1241 is supplied. In addition, particulate foreign matters such as foamed polystyrene and plastic lighter than the solid content are floated as floating matter in the middle portion of the cyclone 122 (step S7), and the first through the open on-off valve 1234, the electromagnetic on-off valve 1235, and the supply pipe 1236. The drum screen 123 is supplied to a drum-type sieve 1231.
[0022]
The granular foreign matter supplied to the first drum screen 123 and the substance mainly composed of the non-edible portion from the crushing / separating tank 1212 remove white water pumped from the white water storage tank 16 by the pump 18 from the washing water jet nozzle 1232. It is washed with water by spraying on the drum-type fluid 1231, and the food components adhering to these foreign matters and substances are removed and collected (step S8). Then, the water that has passed through the drum type fluid 1231 flows into the white water tank 20 from the housing 1233 through the pipe 1237 as white water (step S9). Further, the foreign matters and substances remaining in the drum type fluid 1231 are discharged as soot to the soot storage tank 1238 (step S10).
[0023]
On the other hand, the granular solid content from the cyclone 122 supplied to the second drum screen 124 is washed with water by spraying fresh water pumped by the pump 24 from the fresh water storage tank 22 to the drum type fluid 1241 from the washing water injection nozzle 1242. The food component adhering to the granular solid is removed and collected (step S11). Then, the water that has passed through the drum type fluid 1241 flows into the white water tank 20 from the housing 1243 through the pipe 1247 as white water (step S12). Further, the granular solid remaining in the drum type fluid 1241 is returned to the raw material tank 1248 as the raw material (food) A (step S13).
[0024]
The raw material A, which is a granular solid stored in the raw material tank 1248, is supplied to the crushing machine 141 by the pump 1412, crushed and discharged to the tank 1415 (step S14). At this time, the particulate matter such as a ladder or plastic that is mixed with the raw material A and harder than the raw material A is discharged into the tank 1415 without being crushed. The ground material stored in the tank 1415 is supplied to the primary chamber 1422 of the selection screen 142 by the pump 1427. The screen 1424 converts the ground material into an edible portion and a granular material such as a ladder or plastic. Separate (step S15).
The ground material (step S16) in the secondary chamber 1423 that has passed through the screen 1424 is stored in the finished material tank 30 as a product slurry (step S17) and shipped as livestock feed or the like, or a secondary material such as a fermentation process. Processing is performed.
The soot component remaining in the primary chamber 1422 without passing through the screen 1424 (step S18) is supplied to the primary chamber 1432 of the soot screen 143 through the open on-off valve 38, the electromagnetic on-off valve 40, and the supply pipe 42. The raw material components are separated from the apportioned portion (step S19). Then, the substance in the secondary chamber 1433 that has passed through the screen 1424 is discharged to the raw material tank 1248 as a raw material component (step S20).
[0025]
Further, the soot remaining in the primary chamber 1432 without passing through the screen 1424 (step S21) is supplied to the squeezing machine 144 through the open / close valve 44 and the supply pipe 46, and dehydrated (step S22). The water component generated by the dehydration process flows into the white water tank 20 (step S23), and the soot obtained by the dehydration process (step S24) is reprocessed and then reused or discarded (step S25). .
[0026]
When the white water stored in the white water tank 20 exceeds a predetermined level, it overflows and flows out into the spill pit 54 (step S26). The white water stored in the spill pit 54 is supplied to the separation tank 58 through the supply pipe 62 by the pump 60 (step S27), and the scum separated in the separation tank 58 is discharged to the movable receiving tank 64 (step S28). . The white water in the separation tank 58 excluding scum is supplied to the white water storage tank 16 by the pump 66 (step S29).
In addition, the excess white water stored in the white water storage tank 16 is processed by the water treatment plant and reused as reclaimed water.
[0027]
According to the embodiment of the present invention as described above, the food waste is stirred by the stirring member 1215 in the water in the crushing / separating tank 1212 of the crushing / separating device 121, and then disassembled and crushed, thereby causing the non-edible portion. And edible parts are dispersed in the depth direction in water with a specific gravity difference, and an edible part having a particle size passing through a screen 1213 having a predetermined mesh is supplied to the cyclone 122 together with treated water. In the edible portion from the granular foreign matter separated by the cyclone 122 and the non-edible portion from the crushing separation tank 1212 The substance mainly composed of the above is washed with water on the first drum screen 123 to remove and collect these foreign substances and food components adhering to the substance, and is separated by the cyclone 122. Moisture contained in the solid material is separated by the second drum screen 124, and only the granular solid material which is the raw material separated by the second drum screen 124 is crushed by a pulverizer 141 to form a slurry-like edible component. After that, it is separated into edible components and particulates such as chopsticks and plastics by the selection screen 142, and the edible components that have passed through the selection screen 142 are collected as slurry-like feed. Accuracy can be improved, mixing of the non-edible portion into the edible portion can be eliminated, and the recovery rate and concentration of the edible portion can also be improved.
[0028]
In addition, since the soot component separated by the selection screen 142 is supplied to the soot screen 143 and separated into the soot and raw material components by this soot screen 143, the raw material components are returned to the raw material tank 1248. Further, the recovery rate of the edible portion can be further improved.
Further, the white water separated by the crushing / separating machine 121 and the white water separated by the first drum screen 123 and the second drum screen 124 are configured to be returned to the white water tank 20. It can be used as treated water or as wash water in the first drum screen 123, thereby greatly reducing the amount of new treated water used for separating non-edible portions and edible portions.
Further, the white water overflowed from the white water tank 20 is stored in the spill pit 54, and the white water stored in the spill pit 54 is supplied to the separation tank 58 by the pump 60 to separate the scum, and the scum is removed. After that, the white water can be supplied to the white water storage tank 16 by the pump 66 and stored. Thereby, the white water in the white water storage tank 16 can be effectively used as the cleaning water for the first drum screen 123.
[0029]
【The invention's effect】
As described above, according to the food waste processing method and apparatus of the present invention, it is possible to improve the separation accuracy of the non-edible part, eliminate the mixing of the non-edible part into the edible part, and In addition to improving the recovery rate and concentration of the edible portion, the recovered edible portion can be effectively used as livestock feed.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram showing a configuration of an entire food waste processing apparatus according to an embodiment of the present invention.
FIG. 2 is a flowchart showing a processing procedure of the food waste processing apparatus according to the embodiment of the present invention.
[Explanation of symbols]
12 Separation plant section 14 Collection plant section 16 White water storage tank 20 White water tank 58 Separation tank 121 Crushing / separating machine 122 Cyclone (cleaner)
123 1st drum screen 124 2nd drum screen 141 Smashing machine 142 Selection screen 143 Squeezing screen 144 Squeezing machine 1212 Crushing separation tank 1213 Screen

Claims (11)

A method for treating food waste that recycles food waste as feed,
The food waste is disassembled and crushed in water to separate it into an edible part and an edible part, and the non-edible part and the edible part are submerged by a difference in specific gravity, a difference in followability to water flow, or a difference in physical properties. Floating in a dispersed state in the depth direction of, and filtering the portion containing the edible portion of a predetermined particle size suspended in the water together with water,
Separating the filtered portion into a granular solid and a foreign material lighter than the solid;
After draining the separated granular solid, the portion containing the edible portion of the granular solid is crushed in a slurry state without crushing foreign matter harder than the edible portion of the granular solid by a crushing machine,
Separating the edible component from the portion containing the pulverized slurry-like edible component,
A method for treating food waste.   Extracting the separated foreign matter and the non-filterable non-edible portion, washing the foreign matter and the non-edible portion with water, and removing and collecting the food components adhering to the foreign matter and the non-edible portion. The method for treating food waste according to claim 1.   The food waste processing method according to claim 1, wherein a mash component remaining after filtering the crushed edible component is separated into a mash component and a raw material component, and the raw material component is returned to the mashing step.   The food waste processing method according to claim 3, wherein the separated soot is dehydrated. Extracting the separated foreign matter and the non-filterable non-edible portion, washing the foreign matter and the non-edible portion with water, removing and collecting food components adhering to the foreign matter and the non-edible portion,
Separating the mash component remaining after filtering the crushed edible component into a mash and a raw material component, and returning the raw material component to the mashing step,
The separated sachet is dehydrated,
Wherein the particulate solids in the draining step, step wash of the foreign substance and non-edible portion, and recovering the white water generated in the dehydration process of the slag component, water and the white water dismantling and crushing process of the food waste, claim 1 food waste treatment method, wherein the reused as wash water of the foreign substance and inedible portions of the wash process. A food waste treatment apparatus that recycles food waste as feed etc.
The food waste is disassembled and crushed by agitation in water to separate the non-edible part and the edible part, and the non-edible part and the edible part are different in specific gravity, difference in followability to water flow, or physical A crushing / separating machine having a screen that floats in a dispersed state in the depth direction in water due to a difference in physical properties and passes a portion including an edible portion of a predetermined particle size suspended in water together with water;
A cyclone that separates a part including the edible part that has passed through the screen into a granular solid and a granular foreign substance mixed in the solid;
A second drum screen for draining granular solids separated by the cyclone;
A crusher that crushes the portion containing the edible portion in a slurry state without crushing foreign matter harder than the edible portion of the granular solid drained by the second drum screen;
A selection screen for separating only the edible portion of the slurry that has been crushed by the pulverizer;
A food waste treatment apparatus comprising:   Extract the foreign matter separated by the cyclone and the non-edible portion that does not pass through the screen, wash the foreign matter and the non-edible portion with water, and remove and collect the food components adhering to the foreign matter and the non-edible portion. The food waste processing apparatus according to claim 6, further comprising a first drum screen.   The food waste treatment according to claim 6, wherein the rice cake component separated by the selection screen is separated into a rice cake and a raw material component, and the raw material component is returned to the grinder. apparatus. Food waste treatment apparatus according to claim 8, further comprising a slag squeezed machine for dehydrating pre Kikasu minute. Extract the foreign matter separated by the cyclone and the non-edible portion that does not pass through the screen, wash the foreign matter and the non-edible portion with water, and remove and collect the food components adhering to the foreign matter and the non-edible portion. A first drum screen,
The cocoon component separated by the fine selection screen is separated into a cocoon fraction and a raw material component, and the raw material component is configured to be returned to the masher,
A squeezing machine for dehydrating the cocoon,
The first and second drum screens and a white water tank for collecting and storing white water generated by the squeezing machine are provided, and the white water in the white water tank is water from the crushing / separating machine and washing water from the first drum screen. The food waste processing apparatus according to claim 6 , wherein the food waste processing apparatus is reused. Extract the foreign matter separated by the cyclone and the non-edible portion that does not pass through the screen, wash the foreign matter and the non-edible portion with water, and remove and collect the food components adhering to the foreign matter and the non-edible portion. A first drum screen,
The cocoon component separated by the fine selection screen is separated into a cocoon fraction and a raw material component, and the raw material component is configured to be returned to the masher,
A squeezing machine for dehydrating the cocoon,
The first and second drum screens and a white water tank for collecting and storing white water generated by the squeezing machine are provided, and the white water in the white water tank is water from the crushing / separating machine and washing water from the first drum screen. As reused,
A spill pit for storing white water overflowed from the white water tank, a separation tank for separating scum in the white water supplied from the spill pit, and storing white water in the separation tank after removing the scum, The food waste processing apparatus according to claim 6, further comprising a white water storage tank that supplies white water as cleaning water for the white water tank and the first drum screen.

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