JP2003181427A - Unit and apparatus for treating organic waste - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a unit and an apparatus for treating organic waste, which can cope with the throughput of organic waste flexibly and the maintenance of which can easily be carried out quickly. <P>SOLUTION: This organic waste treating apparatus 5 consists of a primary fermentation tank 6 and a secondary fermentation tank constituted of units 1, 2a, 2b, 2c the adjacent ones of which are connected detachably to each other by bolts and nuts being connecting means that are not shown in a figure. When the throughput of the organic waste to be treated is increased, a new unit is added so that the apparatus 5 can cope with the larger throughput easily. When any of the units 1, 2a, 2b, 2c breaks down, only the broken unit can be removed and repaired or exchanged with the new unit so that the maintenance of the apparatus 5 can be carried out easily. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic waste treatment unit and an organic waste treatment apparatus.
TECHNICAL FIELD The present invention relates to an organic waste treatment unit and an organic waste treatment apparatus capable of forming an organic waste treatment apparatus suitable for a purpose by combining the organic waste treatment units.

[0002]

2. Description of the Related Art In recent years, in the treatment of organic waste such as garbage and biodegradable plastics, organic waste treatment equipment utilizing microorganisms has been used. This organic waste treatment device using microorganisms is a resource-saving and pollution-free treatment method because it decomposes and treats organic matter into carbon dioxide, water, and inorganic matter by using microorganisms. It is possible to treat food waste without consumption of fossil fuel and generation of dioxins. In the organic waste treatment apparatus using such microorganisms, an appropriate treatment can be performed by using an apparatus according to the treatment amount.

[0003]

However, the amount of organic waste processed by users who are engaged in business often increases with the expansion of the business scale, and the amount of organic waste is small and the future business scale may be reduced. There was a problem that it was not possible to own excessive idle equipment at the stage when expansion was unknown.
In addition, it is extremely complicated to dispose of the equipment that has been installed until then and install a new equipment in accordance with the increase in the processing amount, and there is also a problem that the resource is wasted and the economical burden is large. It was Further, in a large-scale apparatus equipped with a plurality of fermentation tanks, the organic waste is agitated by the agitation means to promote fermentation, and the organic waste is conveyed by the agitation means. When a part fails, there is also a problem that the processing of the entire apparatus is stopped and the processing of organic waste that occurs one after another remains.

The present invention is intended to solve the above-mentioned problems, and it is possible to flexibly respond to the amount of organic waste to be processed, and to easily and quickly maintain the device, and An object is to provide an organic waste treatment device.

[0005]

In order to solve the above-mentioned problems, in the organic waste treatment unit according to claim 1,
Box-shaped fermentation tank, stirring means for stirring the organic waste contained in the fermentation tank, and an outlet provided in the fermentation tank for overflowing the organic waste to overflow at a predetermined height And a connecting means capable of connecting to another organic waste treatment unit.

In the organic waste treatment unit according to a second aspect, in addition to the constitution of the organic waste treatment unit according to the first aspect, the organic waste treatment unit is connected to the discharge port of another organic waste treatment unit connected to the organic waste treatment unit. The gist of the present invention is to further include an inflow port configured to allow the discharged organic waste to flow in.

In the organic waste treatment unit according to claim 3, in addition to the constitution of the organic waste treatment unit according to claim 1 or 2, the stirring means is arranged in the fermenter. The gist of the invention is to stir the organic waste in the fermenter with the rotating shaft and stirring blades provided on the rotating shaft.

In the organic waste treatment unit according to a fourth aspect, in addition to the constitution of the organic waste treatment unit according to the third aspect, the stirring means is provided with the rotation for each of the organic waste treatment units. The gist is that a drive means for rotating the shaft is provided.

In the organic waste treatment unit according to a fifth aspect, in addition to the constitution of the organic waste treatment unit according to the third aspect, the stirring means is driven by an external driving means to drive the rotary shaft. The gist is that a transmission means for transmitting is provided.

In the organic waste treatment unit according to a sixth aspect of the present invention, in addition to the configuration of the organic waste treatment unit according to the third aspect, the stirring means has the rotating shaft for treating a plurality of organic wastes. The point is to use it in common in the unit.

The organic waste treatment apparatus according to the seventh aspect is summarized as being constituted by connecting the organic waste treatment units according to any one of the first to sixth aspects.

[0012] In the organic waste treatment unit according to claim 8, a fermentation tank having an input port at the upper portion, a stirring means having a rotating shaft arranged in the vertical direction, and a predetermined amount of organic matter in the fermentation tank. The gist is that it has a discharge port provided so that waste can remain.

The organic waste treatment apparatus according to the ninth aspect is characterized in that the organic waste treatment unit according to the eighth aspect is provided as a primary fermentation tank for performing pretreatment.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) An organic waste treatment apparatus 5 according to an embodiment of the present invention will be described below.
Will be described with reference to FIGS. In the present embodiment, as an example of organic waste, food waste, which is a residue of food in a restaurant or the like, will be described as an example. FIG. 1 is a perspective view of an organic waste treatment unit (hereinafter appropriately abbreviated as a unit) 1 that constitutes an organic waste treatment apparatus. The arrow F side in the figure is the front side.

The organic waste treatment unit 1 is provided with a box-shaped fermenter 11 which is hollow and has a hollow upper portion and a bottom portion which is a half-cylindrical curved surface and which is formed in a generally inverted vertical shape. . The fermenter 11 has a U-shaped cross section at a portion taken along the line AA in FIG. 1 and has an arcuate bottom at the bottom. In addition, in the cross section of the portion along the line BB perpendicular to this, the shape is a U-shape with the upper part open. The horizontal cross section is rectangular.

The rotary shaft 1 is attached to bearings 13a and 13b arranged at the center of the arcs of the lower peripheral edges of the facing side plates 11a and 11b arranged on the left and right of the fermenter 11.
2 are arranged and pivotally supported. One end of the rotary shaft 12 has a side plate 1
It penetrates through 1b and is projected to the outside of the fermenter 11. Side plate 1
A geared motor 14 is provided at the protruding portion of the rotary shaft 12 of 1b to drive and rotate the rotary shaft 12. The geared motor 14 includes a motor and a reduction gear set in a hermetically sealed container, and is configured to prevent abnormal rotation due to foreign matter such as dust. Further, since each unit is provided with the geared motor 14, when a unit is added, it can be immediately connected and used as long as a power source is wired.

Stirring rods 15a and 15b are provided so as to project from the both ends of the rotary shaft 12 at a position of about 1/3 so as to be orthogonal to the rotary shaft 12. These stirring bars 15a and 15b
Are provided at positions facing each other by 180 ° when viewed in the axial direction of the rotary shaft 12. When the rotary shaft 12 rotates, the stirring rod 15
The a and 15b stir the organic waste in the fermenter 11.
At this time, the loci of the tips of the stirring bars 15 a and 15 b move along the bottom surface 11 c of the fermenter 11. Therefore, the organic waste at the bottom of the fermenter 11 is also stirred by the stirring bar 15.
It is stirred without leakage by a and 15b.

The upper end of the front surface portion 11d of the fermenter 11 is cut out to form a discharge port 16. Therefore, when the organic waste is put into the fermenter 11 and the amount exceeds a certain amount,
The organic waste that is being stirred and moved by the stirring bars 15a and 15b overflows and overflows from the horizontally cut lower end of the discharge port 16.

At both ends of the upper part on the front side of the fermenter 11, connecting holes 17a to 17d are formed to constitute connecting means for connecting with other units. Similarly, connection holes 17e to 17h are formed at both ends of the upper portion of the right side surface. The connecting hole 17 communicates with a connecting hole of another unit and allows a bolt 18 (see FIG. 5) to penetrate therethrough, and a nut 19 is screwed onto the tip of the penetrated bolt 18 for tightening. In the present embodiment, the connecting hole is formed by the connecting hole of each unit, the bolt 18 and the nut 19.

FIG. 2 is a diagram showing an organic waste treatment unit (hereinafter abbreviated as a unit) 2 which is another embodiment of the organic waste treatment unit of the present invention. The unit 2 has substantially the same form as the unit 1, but differs in that an inflow port 28 is provided on the back side. The inlet 28 is the outlet 16 of the unit 1 when connected to the unit 1 (see FIG. 1).
Are arranged and formed so as to overlap with each other at the same position. In the unit 2, the stirring rods 25a and 25b rotate in the direction of the arrow indicated by the chain double-dashed line to cause the organic waste to flow while stirring, and the organic waste that has sequentially flowed in from the inflow port 28 in the direction of the arrow exceeds a certain level. Then, it is discharged from the discharge port 26.

FIG. 3 is a view showing another embodiment of an organic waste treatment unit (hereinafter abbreviated as a unit as appropriate) 3. The unit 3 has the same configuration as the units 1 and 2, but has an inflow port 38 on the back side and an outlet 36 on the right side.
FIG. 4 is a diagram showing an organic waste treatment unit (hereinafter, appropriately referred to as a unit) 4 of another aspect. Unit 4
Has the same configuration as the units 1 to 3, but has an inflow port 48 on the left side surface and a discharge port 46 on the back surface side. Further, the mounting position of the geared motor 44 and the driving direction of the rotary shaft 42 by the geared motor 44 are opposite to those of the units 1 to 3. Then, as shown in FIG. 4, the organic waste of the unit 4 is discharged in the rear direction.

The units 1 to 4 are mere examples, and in addition to the units 1 to 4, the inlet and the outlet are arranged on the front surface, the rear surface, the right side surface and the left side surface, and the arrangement of the geared motor 14 and the driving direction thereof are changed. By changing it, various patterns can be constructed.

Here, taking the units 1 and 2 as an example,
The connection between the units will be described. FIG. 5 is a sectional view of the connected unit 1 and unit 2. First, the connection holes 17a and 17b on the upper right side of the front of the unit 1 and the unit 2
The connecting holes 27a and 27b of the unit 1 are communicated with each other, and the bolt 18 is inserted therein to connect the connecting holes 17a and 17b of the unit 1.
And the connecting holes 27a and 27b of the unit 2 are penetrated. A nut 19 is screwed onto the tip of the bolt 18 and tightened.
Similarly, the left connecting holes 17c and 17d (see FIG. 1) are also fixed by bolts 18 and nuts 19. When the unit 1 and the unit 2 are closely contacted and connected in this manner, the unit 1
The discharge port 16 of and the opening position of the inflow port 28 of the unit 2 match.

In the units 1 and 2 connected in this way, organic waste is introduced into the unit 1 from the primary fermentation tank 6 (see FIG. 6) and accumulated in the fermentation tank 11, and the organic waste is discharged from the lower end of the discharge port 16. When the number becomes large, it overflows from the discharge port 16 and flows into the fermentation tank 21 of the unit 2 from the inflow port 28 of the unit 2. And the fermenter 21 of unit 2
When the amount of organic waste accumulated in the unit 2 increases and overflows from the outflow port 26 of the unit 2, it overflows to the adjacent unit. In this way, the organic waste sequentially moves to the adjacent units and is finally discharged to the outside.

FIG. 6 shows the unit 1 thus connected.
And organic waste treatment device 5 comprising unit 2
Indicates. A primary fermentation tank 6 is arranged here. FIG. 7 is a diagram showing the primary fermentation tank 6. The primary fermenter 6 has an inverted hollow truncated cone-shaped main body 61 with a large inner hollow upper radius.
Is provided, and a lid portion 62 seals the upper portion thereof. The main body 61 is provided with a heat insulating material inside, and the inside has high heat retention. A rotating shaft 63 is vertically arranged in the center of the main body 61, a lower portion of the rotating shaft 63 extends from the center of the lower portion of the main body 61, and a gear portion 64 is provided at the lower end thereof. A driving force is applied to the gear portion 64 from the motor 65 to rotate the rotating shaft 63.

On the front side of the upper portion of the main body 61, a pipe-shaped discharge port 66 is horizontally provided. The discharge port 66 is provided with a knife gate 67 having a solenoid, and the main body 6
It controls the discharge of the organic waste from inside 1 through the discharge port 66. A power supply for driving the solenoid is connected to the solenoid and controlled by a control panel (not shown). When the knife gate 67 is opened on the control panel, the organic waste inside the main body 61 flows into the unit 1.

The inside of the main body 61 is hollow, a rotary shaft 63 is vertically arranged at the center thereof, and the upper and lower ends are rotatably supported by bearings having bearings (not shown). This rotary shaft 63 is driven by a motor 65 via a gear portion 64.
It is rotationally driven at 0 to 150 revolutions / minute. here,
For the organic waste such as garbage, the main body 6 is opened by opening the lid 62.
Put in 1. Then, the lid portion 62 is covered and fixed by a lock device (not shown), and a voltage is applied to the motor 65 by a control panel (not shown) to drive the motor 65. Then, the rotating shaft 63 rotates. The rotary shaft 63 is provided with a stirring blade 68. The stirring blade 68 has an attack angle to break and stir the organic waste inside. Therefore, the organic waste in the main body 61 is vigorously stirred in the vertical direction, crushed and dried.

The stirring blade 68 is linearly provided with its tip end portion along the main body portion 61, and is rotated counterclockwise in plan view by the rotating shaft 63. Since the stirring means is configured in this way, when the stirring blade 68 is rotated around the rotary shaft 63, the raw garbage stored in the main body 61 is stirred so as to be scooped, and the organic waste is centrifugally generated. Fly in the circumferential direction. The organic waste scattered in the circumferential direction travels down the inner wall of the main body 61, falls downward, and is again stirred by the stirring blade 68.

In the stirring means of this embodiment, the motor 65
By the stirring blades 68 rotated by, the food waste is stirred so as to be scooped up, so that a large amount of air can be sent into the food waste while mixing the food waste. Therefore, it is possible to promote fermentation by aerobic microorganisms and generate more respiratory fever. In addition, frictional heat is generated by the stirring blades 68 to raise the temperature of the food waste. Furthermore, heat generation due to wave heat is also generated, and these together increase the temperature of the organic waste in the sealed main body 61.

The organic waste whose temperature is raised by the action of the stirring blade 68 as described above depends on the content and the type of the fungus bed.
For example, the primary fermentation is completed in about 90 minutes. When the primary fermentation is completed, the solenoid is operated to open the knife gate 67. Then, the organic waste whose water content is reduced by the stirring blade 68 is discharged from the discharge port 66 by centrifugal force. Here, since the discharge port 66 is provided in the upper portion of the main body 61, a predetermined amount of organic waste remains in the main body 61 even if the knife gate 67 is opened. Since microorganisms remain in this organic waste, the organic waste is next treated with the primary fermentation tank 6
It becomes the bacterial bed when it is put into.

Next, the bacterial bed of this embodiment will be described. In general, an annihilation type waste treatment device uses a fungal bed together with garbage. Here, "bacterial bed" is the one in which microorganisms adhere to the decomposition base material that makes it easier for the microorganisms to work.
Those such as sawdust, which are easily mixed with air, are generally used. Inside this fungus bed, organic waste composed of carbon, oxygen, hydrogen, and nitrogen is decomposed into low-molecular substances such as carbon dioxide, water, and ammonia, which theoretically completely eliminates substances other than inorganic substances. Is.

In the present embodiment, a bio-base material for an organic waste treatment device which is generally sold in home centers and supermarkets as a fungus bed, specifically, for example, Earthlab manufactured by Earthlab Nippon Co., Ltd. is suitable. Can be used. Although there is a method of using the erasable type organic waste treatment using soil microorganisms, the treatment is possible even in this case, but decomposition causes generation of treated water or residue. On the other hand, in a biological system decomposition method using enzymes and metabolites produced by intestinal microorganisms of animals, it can be decomposed almost completely in a body temperature environment without applying energy such as heating. Therefore, it is desirable to use a biodegradable method as the bacterial bed.

The earth slab, which is a microbial bed according to this biodegradation method, will be described below. The enzyme metabolite is mixed with sawdust as a decomposition base material and used. In the enzyme metabolite, Pseudomonas aeruginosa,
Pseudomonas Stutzeri, Serr
tia ligature, Serrtiam
arcescens, Stenotrophonasm
altophilia, Bacillus sphere
Although microorganisms such as ricus have been identified, the production process of digestive enzymes produced in the decomposition process has not been sufficiently analyzed. In addition, the amino acid composition of the above enzyme metabolite had a total amino acid content of 1720 μg / ml and phosphoserine 1
5.85 μg / ml, phosphoethanolamine 4.82
μg / ml, urea 136.75 μg / ml, cystine 11.88 μg / ml, ammonia 1449.95 μg
/ Ml, carnitine 1.99 μg / ml (Hitach
iL-8500: December 29, 1998 on Ecological Analysis Column
Nikkei Osaka Prefectural University).

The use of the waste treatment device 5 of this embodiment will be described below. First, the garbage and this bacterial bed are mixed in a ratio of 1: 1 in advance, the lid 62 of the primary fermentation tank 6 is opened, and the mixture is put into the main body 61 from above. In the present embodiment, for example, raw garbage having a mass of 60 kg and a bacterial bed having a mass of 60 kg are mixed and put into the primary fermenter 5. Depending on the type of food waste, the water content is usually around 50-60%,
It has a volume of about 86 liters, and the total volume is about 172 liters.

The primary fermentation is started by the decomposition of sugars, amino acids and the like by filamentous fungi. Filamentous fungi are fungi that occur anywhere in nature and have a fast growth rate, but generate respiratory fever and degrade at 40 degrees or higher. In the next stage where the temperature has risen in this way, thermophilic bacteria, mainly actinomycetes, grow. Thermophilic bacteria such as actinomycetes are resistant to high temperatures and decompose cellulose and semi-cellulose that could not be decomposed by filamentous fungi. At this time, even the respiratory heat alone can reach 60 degrees or more. In the present embodiment, the generation of respiratory heat is promoted by positively mixing air with the stirring blade 68, and frictional heat and wave heat are generated, so that an extremely high temperature can be maintained. Further, in the sealed primary fermentation tank 6, since the heat retaining effect is further high, the generated heat is not released, so that the high temperature state can be maintained.

In the present embodiment, when the outside temperature is 20 ° C., the temperature change in the primary fermentation tank 6 is about 2 at the time of charging.
8 ° C, about 60 ° C after 30 minutes, about 78 ° C after 60 minutes,
After 90 minutes, the temperature exceeded about 100 ° C. Regarding the temperature rise, it is difficult to specify the conditions such as the water content of raw garbage, the components of raw garbage, and the state of microorganisms in the fungal bed. However, the temperature rise during fermentation by thermophilic bacteria in the natural state is about 60 ° C. Compared with the above, only 90% without using any heating device.
It is clear that the temperature rises remarkably in a minute, and that the environment created by the primary fermentation tank 6 of the present embodiment is a factor of the temperature rise.

Here, pasteurization (pasteuriza)
According to the theory of cation), weak bacteria can be killed by heating at 45 ° C for 30 minutes and strong bacteria at 65 ° C for 30 minutes, and spores can be removed by heating at 60 to 70 ° C for 30 to 60 minutes. It is known to be able to kill most infectious and pathogenic bacteria. Therefore, in the present embodiment, most of the bacteria are killed by the temperature increase in the primary fermentation tank 6 as in the above experimental result. Therefore, it is possible to safely treat infectious food waste such as disposable diapers made of biodegradable resin in a medical institution due to the heat of fermentation by microorganisms, without using incineration. In particular, many microorganisms produce antibiotics in this process, and harmful antibiotics and pathogenic bacteria are killed by this antibiotic, so that safer treatment is possible.

Further, the treatment in the primary fermentation tank 6 is carried out with high heat as described above, so that ammonia (N
H ₃ ) becomes a gas and diffuses. For this reason, it can be deodorized with a deodorizing device, and the nitric acid bacteria (NHO ₃ )
Is eliminated by being forcibly reduced into water and nitrogen.

In this primary fermentation, the mass was 1 in about 90 minutes.
20 kg is reduced by about 10% to 108 kg. Since the bacterial bed itself hardly decreases, the mass reduction rate of the food waste itself is about 20%. Also, the volume is reduced by about 10% from about 172 liters to about 154 liters.

Normally, 90 minutes after the introduction into the primary fermentation tank 6, the knife gate 67 is opened to discharge the raw garbage for which the primary fermentation is completed to the unit 1 of the secondary fermentation tank through the discharge port 66.

Next, the secondary fermentation in the unit 1 is carried out. Here, the secondary fermentation will be described. Primary fermenter 5
If the amount of substances that are decomposed by thermophilic bacteria such as actinomycetes is further decreased, the growth of thermophilic bacteria such as actinomycetes decreases, and the temperature decreases. In the next step, the fibrous tissues such as cellulose and semi-cellulose which have been decomposed and become soft by the bacteria are further decomposed. Mutual fermentation of oxidation and reduction is performed by amphoteric digestive bacteria, and organic matter is separated into water, carbon dioxide, and nitrogen to be mineralized. Generally, a long time is required as compared with the decomposition of actinomycetes. In the waste treatment device 5 of the present embodiment, the fermentation at this stage is separated from the fermentation at the previous stage and efficiently treated by the optimum method, so that the time from the input to the disappearance is extremely short as a whole. I'm on time.

In order for microorganisms to efficiently decompose organic substances such as ammonia, amines and aldehydes, a certain density and temperature are required. For that purpose, it is necessary to deposit it to some extent to generate a pressure derived from the own weight of the organic waste, or to generate a heat retention effect due to the thickness. It is said to be desirable. If the height is too low, sufficient density and temperature cannot be achieved. Therefore, in the present embodiment, by dividing the entire secondary fermentation tank into units, even if the amount of organic waste is small, it is possible to prevent the organic waste from spreading to the entire secondary fermentation tank. The pressure and heat retention effect are increased. Therefore, efficient fermentation is achieved only by stirring without additional heating.

Specifically, when the outside air temperature is 20 ° C., the temperature of the first unit 1 to be charged is about 55 ° C. ± 10.
C., the second unit 2a and the third unit 2b maintain a temperature of about 55.degree. C .. ± .10.degree. C., and the final unit 2c maintains a temperature of about 40.degree.

When the secondary fermentation in the unit 1 is completed, the organic waste for which the next primary fermentation is completed is charged from the primary fermentation tank 6. Then, when a predetermined amount or more of organic waste is input, the organic waste in the fermentation tank 11 in the unit 1 overflows from the discharge port 16 and flows from the inflow port 28 of the unit 2a to the fermentation tank 21 of the unit 2a. Inflow. Then, the secondary fermentation in the unit 2a proceeds. Similarly, when the secondary fermentation in the units 2b and 2c progresses and the inside of the unit 2c becomes full, it is discharged to the outside from the discharge port 26 and the processing is completed.

By the treatment of the organic waste treatment apparatus 5, the amount of approximately 60 kg and 86 liters of food waste initially charged becomes approximately 1.5 kg and 2 liters, and the mass reduction rate becomes 97.5%. In other words, it almost disappears. On the other hand, regarding the bacterial bed, although there is a slight decrease,
It is possible to mix it with the next food waste as it is and re-introduce it into the primary fermentation tank 6 or the unit 1. In addition, all the microorganisms that work at each fermentation stage are maintained in a dormant state,
At each fermentation stage, they are regrown to perform a predetermined fermentation.
Therefore, basically, the bacterial bed can be reused, and it is not necessary to replace the bacterial bed for an extremely long period of time.

The organic waste treatment units 1 and 2 and the organic waste treatment apparatus 5 of this embodiment have the following effects. The units 1 and 2 are bolts 1 which are connecting means.
8, the nut 19, the connection holes 17 and 27, and the like can be freely connected, and an organic waste processing device according to the processing amount can be obtained. Therefore, there is an effect that the organic waste processing apparatus can be used without waste according to the amount of the generated organic waste.

In addition, each unit constituting the organic waste treatment apparatus 5 can be freely attached and detached, and the geared motor 14 and the like are also provided in each unit. However, by removing only the faulty unit and using a substitute unit, there is an effect that the treatment of the entire organic waste treatment apparatus 5 can be continued.

Further, when the amount of organic waste to be treated increases at a business site, for example, by inserting and adding a new unit 2 between the unit 1 and the unit 2a, the organic waste treating apparatus is added. There is an effect that it is possible to easily increase the storage capacity of.

Further, in the primary fermentation tank 6 (FIG. 7), a fermentation tank main body 61 having an input port at the upper portion, a stirring means in which a rotary shaft 63 having stirring blades 68 is vertically arranged, and a fermentation tank Since the main body 61 is provided with the discharge port 66 having the knife gate 67 provided so that a predetermined amount of organic waste can remain therein, the main body 61 is provided with the discharge port 66, so that a fixed amount of the bacterial bed always remains in the main body 61. Therefore, there is an effect that it is not necessary to simultaneously introduce the bacterial bed when newly introducing the organic waste.

(Second Embodiment) Next, another embodiment of the organic waste treatment unit and the organic waste treatment apparatus of the present invention will be described with reference to the organic waste treatment apparatus 8. Here, FIG. 8 is a diagram showing the organic waste treatment apparatus 8.

In the primary fermentation tank 7 provided in the organic waste treatment device 8, when the organic waste is charged into the main body 71, the bacterial bed is mixed and then charged. As the bacterial bed, the one finally discharged from the secondary fermentation tank can be used. The organic waste that is primarily fermented in the main body 71 is discharged from a discharge port 76 provided at the bottom of the main body 71 by opening a knife gate (not shown). Therefore, the organic waste does not remain in the main body 71, the capacity of the main body 71 can be effectively used, and the space efficiency can be improved.

In the secondary fermentation tank, four units are connected in series to each other.
Columns are connected. First, the unit 1 (FIG. 1) is arranged below the primary fermentation tank 7. The unit 2d and the unit 2e (FIG. 2) are connected to the front side. Further, the unit 3 (FIG. 3) is connected. The unit 3 has a discharge port provided in the right-hand direction when viewed from the front, and the unit 4 (FIG. 4) is connected thereto. The unit 2f, the unit 2g, and the unit 2h are connected to the rear side of the unit 4. At this time, the unit 1 and the unit 2h, the unit 2d and the unit 2g, and the unit 2e and the unit 2 which are adjacent to each other on the left and right
f is also connected by the connecting means.

At this time, the units 1, 2d, 2e, 3,
4, 2f, 2g outlets are the unit units 2d, 2
e, 3, 4, 2f, 2g, 2h communicate with the inlet.

Unlike the first embodiment, the unit of the second embodiment does not have a geared motor.
Instead, drive gears including worm wheels 81a, 81b, 81c and 81d are arranged on the rotation shafts of the units 1, 2a, 2b and 3. Further, drive shafts 82a, 82b, 82c, 8 provided with worms that mesh with these.
2d is provided and they rotate together. Further, the drive shaft 82a is driven by the motor 83. These worm gears are covered with a cover (not shown) to prevent foreign matter from entering. Drive shafts 82a, 82b, 82
c, 82d are respectively supported by the units 1, 2d, 2e, 3 and, for example, when the unit 2d is removed, only the drive shaft 82b is separated from the other drive shafts together with the unit 2d.

The units 4, 2f, 2g and 2h are also
A motor 84 arranged on the right side surface, a drive shaft (not shown),
Worm gears are provided to drive the respective rotary shafts.

The organic waste treatment units 1 to 4 and the organic waste treatment apparatus 8 configured as above have the following effects. The primary fermentation tank 7 can completely discharge the contained organic waste, so that it is possible to temporarily treat the organic waste having a volume that can be accommodated in the primary fermentation tank 7.

Further, since the units 1 to 4 are arranged in two rows, the length of the installation space can be shortened as compared with the case where the installation space is arranged in one row.

Further, since each unit is provided with the drive shaft 82 and the worm 81 which are transmission means for transmitting the driving force from the outside, the driving force from the outside can be transmitted to the rotating shaft of each unit. Further, if a motor as a drive source is provided outside, it is not necessary to provide a drive source for each unit.

In particular, since the drive shaft 82 is provided for each unit, it is possible to easily add or replace each unit.

(Third Embodiment) Next, another embodiment of the organic waste treatment unit and the organic waste treatment apparatus of the present invention will be described with reference to the organic waste treatment apparatus 9. Here, FIG. 9 is a diagram showing the organic waste treatment apparatus 9.

Unlike the organic waste treatment devices 5 and 9, the organic waste treatment device 9 does not include the primary fermentation tanks 6 and 7. As described above, the organic waste treatment device may be configured with only the secondary fermentation tank depending on the content and the amount of the organic waste to be treated at the business establishment. In addition, each unit includes a driven pulley 92 provided on a rotating shaft 91, and a plurality of stirring means are driven by a drive pulley 94 provided on one motor 93 which is a drive means.

Further, a lid portion 95 for covering the entire organic waste treatment apparatus 9 may be provided to enhance the heat retaining effect and prevent odor diffusion. Also, here the units are arranged in three rows and arranged to process large amounts of organic waste for longer periods of time.

(Fourth Embodiment) Next, another embodiment of the organic waste treatment unit and the organic waste treatment apparatus of the present invention will be described with reference to the organic waste treatment apparatus 101. Here, FIG. 11 shows an organic waste treatment apparatus 101.
FIG.

The organic waste processing apparatus 101 includes organic waste processing units (hereinafter abbreviated as units) 102 and 10.
3, 104 are provided. Like the unit 1, the unit 102 includes a fermenter 105 having an inverted kamaboko shape. However, unlike the unit 1, a rotary shaft is not provided for each unit, and the rotary shaft 106 used in common with the other units 103 and 104 is penetrated by the bearing portions 107 and 108 having through holes. A bearing 109 and a bearing (not shown) are provided between the rotary shaft 106 and the bearing portions 107 and 108 to support the rotary shaft 106. Unit 102
Has an outlet 110.

The unit 103 has the same structure as the unit 102 except that the unit 103 has an inlet 112. The unit 104 also has the same configuration as the unit 111.

The units 102 and 10 configured in this way
The bearings 107, 114, 115 are arranged in series so that the bearings 107, 114, 115 and the like communicate with each other, and the rotary shaft 106 is disposed so as to penetrate the bearings 107, 114, 115 and the like. In this state, they are connected and integrated by a connecting means (not shown).

The rotary shaft 106 thus arranged has
Stirring blades 116a to 116l are respectively planted. Further, the rotary shaft 106 is the bearing portion 107 of the unit 102.
The geared motor 117 is disposed here so as to project from the end, and is supported by the unit 102 to drive the rotary shaft 106.

The organic waste processing apparatus 101 has the following actions. When the amount of organic waste to be treated increases, a unit is added and the rotary shaft 106
Replace with a unit that is longer than the added unit. With such stirring means, the drive system has a simple structure, has high durability, and can reduce the occurrence rate of failures. In addition, the geared motor 117, which is the drive source, is
Since only one is used, the configuration is simple in this respect as well.

Although the rotary shaft 106 is an integrally formed shaft here, for example, the end portions can be engaged with each other so that the lengths of the respective units can be replenished. In this case, the existing device can be used as it is by adding the rotary shaft 106 by the length corresponding to the added unit. Further, even if a failure occurs, it is possible to separate it from other units by separating only the rotation shaft of that unit, which facilitates repair and maintenance.

(Fifth Embodiment) Next, another embodiment of the organic waste treatment unit and the organic waste treatment apparatus of the present invention will be described with reference to the organic waste treatment apparatus 201. Here, FIG. 12 shows an organic waste treatment apparatus 201.
FIG.

The organic waste processing apparatus 201 is a unit 202, 203, 204, 205 having a fermenter and a rotary shaft similar to the above-mentioned units 102, 111, 113.
206 and 207 are used. However, instead of the geared motor 117, the driving means is replaced by a motor 208 provided outside.
Is provided. The driven pulley 210 fixed to the rotating shaft 209 is belt-driven by the motor 208, and the driven pulley 21 fixed to the rotating shaft 211 is further driven.
2 is used. Therefore, 1
One motor 208 allows all units 202-20
The stirring means 7 is driven.

In the organic waste processing apparatus 201, the units 205, 206 and 207 are first connected in series and placed on the floor as the lower step portion 214. Further, the units 202, 203, and 204 are similarly connected in series above it, and are supported by the supporting means (not shown) as the upper step portion 213. At this time, the unit 204 on the downstream side of the upper stage portion 213
Is disposed near the central portion of the unit 205 on the upstream side of the lower step portion 214. Therefore, the organic waste overflowing from the discharge port 215 of the unit 204 is not collected in the unit 205.
Fall inside.

A cover 216 is provided near the discharge port 215 of the unit 204. The cover 216 is shaped so as to cover the organic waste that overflows from the discharge port 215 so as not to spill outside the unit. Therefore, the organic waste certainly moves into the unit 205 without spilling to the outside. Furthermore, the cover 216 can prevent dust from flowing out together with a lid member that covers each unit (not shown).

The unit 2 on the downstream side of the lower stage portion 214
In 07, a discharge port 217 is provided in a direction orthogonal to the moving direction, and a gutter member 218 is provided therein. A storage container 219 for storing the processed organic waste that overflows from the discharge port 217 and falls from the gutter member 218 is provided. The treated organic waste in the storage container 219 does not need to be frequently collected because the weight of the organic waste is reduced by about 97.5% due to the treatment of this apparatus. further,
Since most of the organic substances in this treated organic waste are decomposed and composed mainly of microorganisms and inorganic substances, the treated organic waste can be reused as a fungal bed in the primary fermenter 220.

In the vicinity of the most upstream unit 202 of the upper part 213, the primary fermentation tank 6 supported by a supporting means (not shown).
Is provided. As described above, the primary fermenter 6 performs the pretreatment of the secondary fermentation by treating with the thermophilic bacterium in a short time.
The primary fermentation tank 6 remarkably enhances the fermentation efficiency in the units 202 to 207.

In the organic waste processing apparatus 201 having such a structure, there is an effect that the space efficiency can be improved by vertically stacking the units.

(Other Example) The first to third embodiments may be modified as follows. ○ The connecting means may be one that uses bolts and nuts, one that fits in a groove, or one that fits unevenness. In addition, rubber, sponge,
It is also desirable to prevent vibration, noise, leakage of contents, etc. by sandwiching an elastic member such as resin or mat.

The unit may be composed of a metal material such as stainless steel, in addition to an iron plate, and various materials such as resin and FRP if heat resistance and strength are satisfied.

A hydraulic motor or the like can be used as a drive source for the rotation of each part in addition to the electric motor, and various opening / closing devices can be used in place of the knife gate 67.
Also, the drive source for opening and closing these is replaced by a solenoid,
Hydraulic pressure, pneumatic pressure, motor, etc. can be used.

The shape of the primary fermentation tanks 6 and 7 is not limited to the shape such as an inverted triangular pyramid shape as a whole, and may be a cylindrical shape, a shell shape or the like. Further, the stirring blade 68 can also adopt various modes such as the number, shape, and mounting position.

The number of units may be two or more. In addition, the manner of connection is not limited to a spiral arrangement other than the one-row arrangement as shown in the embodiment or a plurality of rows arranged side by side and folded.
Further, as shown in the first to third embodiments, the rotary shafts of the respective units may be connected so as to be parallel to each other, and as shown in the fourth to fifth embodiments, the rotary shafts may be connected to each other. May be arranged on the same straight line. Further, not only the one-stage structure shown in the first to fourth embodiments and the two-stage structure shown in the fifth embodiment, but also the three-stage structure or more. . Also, FIG.
An organic waste treatment device 301 configured by being inclined as shown in the schematic diagram of FIG. 3 and an organic waste treatment device configured by units arranged in a staircase as shown in the schematic diagram of FIG. A configuration like 401 may be used. Further, it goes without saying that various combinations of these configurations can be adopted.

The unit is the unit 1 shown in FIG.
Not only a wide shape such as 0, but also various lengths and depths can be selected. Further, the shape is not limited to the inverted kamaboko shape, and various shapes such as a horizontal cylinder shape can be selected. Further, units having different sizes may be used according to the fermentation stage. Further, the height levels of the discharge port and the inflow port may be configured to gradually decrease from the upstream side to the downstream side to prevent backflow of the organic waste.

A heating device is not essential to the present invention, but depending on the environment of use and the type of bacterial bed used,
It does not prevent the provision of a heating device. Examples of the heating device include a device that blows warm air, a device that is provided with an electric heating element around or inside the fermentation tank, and a device that circulates hot water, steam, and the like.

It is desirable that the device covers the whole or a part of the device. With this cover, odor, harmful gas, dust, harmful microorganisms, etc. can be prevented from being emitted, a heat retaining effect can be expected, and noise can be reduced. Although the exhaust device is not essential in the present invention, an exhaust device may be provided, and a filter means and a deodorizing means may be further provided. For deodorizing means,
Examples thereof include those that decompose by heat, chemically decompose by an ozone generator, etc., chemically adsorb activated carbon, and a shower device.

The stirring means may be of various shapes in addition to those shown in the embodiment, and for example, as shown in FIG. 10, a large number of means having a mounting angle shifted by 60 ° may be provided. With such a shape, the organic waste can be easily moved in the width direction. Also, the shape is the stirring rod 1.
In addition to 5, plate-shaped ones can also be adopted. Further, the stirring means is not limited to one constituted by a rotating shaft and stirring blades, one that rotates the unit itself, one that vibrates,
Various configurations such as those using compressed air are possible.

The microorganism bed uses a biodegradable microorganism, but various aerobic or facultative anaerobic microorganisms that decompose organic matter can be used.

In the present application, “organic waste” is not limited to garbage, but includes any waste that can be treated by microorganisms such as biodegradable plastic.

[0088]

As described above in detail, according to the present invention, it is possible to flexibly respond to the processing amount of organic waste.
Moreover, there is an effect that maintenance of the device can be performed easily and quickly.

[Brief description of drawings]

FIG. 1 is a perspective view of an organic waste treatment unit 1 that constitutes an organic waste treatment apparatus.

FIG. 2 is a perspective view showing an organic waste treatment unit 2 which is another aspect of the organic waste treatment unit of the present invention.

FIG. 3 is a perspective view showing an organic waste treatment unit 3 of another aspect of the organic waste treatment unit of the present invention.

FIG. 4 is a perspective view showing an organic waste treatment unit 4 of another aspect of the organic waste treatment unit of the present invention.

FIG. 5 is a cross-sectional view of the connected unit 1 and unit 2.

FIG. 6 is a perspective view showing an organic waste treatment device 5 including a unit 1 and a unit 2.

FIG. 7 is a perspective view showing the primary fermentation tank 6.

FIG. 8 is a perspective view showing an organic waste treatment device 8.

FIG. 9 is a perspective view showing an organic waste treatment device 9.

FIG. 10 is a perspective view showing another unit 10.

FIG. 11 is a perspective view showing an organic waste treatment device 101.

FIG. 12 is a perspective view showing an organic waste treatment device 201.

FIG. 13 is a schematic diagram showing an organic waste treatment device 301.

FIG. 14 is a schematic diagram showing an organic waste treatment device 401.

[Explanation of symbols]

1, 2a to 2h, 3, 4, 102 to 104, 202 to 2
07 ... Organic waste treatment unit, 5, 8, 9, 10
1,201,301,401 ... Organic waste treatment device,
6,7 ... Primary fermenter

Claims (9)

[Claims] 1. A box-shaped fermenter, a stirring means for stirring the organic waste contained in the fermenter, and a fermenter which is provided in the fermenter and overflows the organic waste at a predetermined height. An organic waste treatment unit, comprising: a discharge port through which the organic waste treatment unit overflows and a connecting means capable of connecting with another organic waste treatment unit. 2. The inflow port configured to receive the organic waste discharged from the discharge port of another organic waste treatment unit connected thereto. 1. The organic waste treatment unit according to 1. 3. The agitating means agitates the organic waste in the fermenter with a rotating shaft disposed in the fermenter and a stirring blade provided on the rotating shaft. The organic waste treatment unit according to claim 1 or 2. 4. The organic waste treatment unit according to claim 3, wherein the stirring unit includes a drive unit that rotates the rotary shaft for each of the organic waste treatment units. 5. The organic waste treatment unit according to claim 3, wherein the stirring unit includes a transmission unit that transmits a driving force from an external driving unit to the rotary shaft. 6. The organic waste treatment unit according to claim 3, wherein the stirring means uses the rotary shaft in common in a plurality of organic waste treatment units. 7. An organic waste treatment apparatus comprising the organic waste treatment unit according to claim 1 connected to the organic waste treatment unit. 8. A fermenter having an input port at the top, a stirring means having a rotary shaft arranged in the vertical direction, and an outlet provided so that a predetermined amount of organic waste can remain in the fermenter. An organic waste treatment unit comprising: 9. An organic waste treatment apparatus comprising the organic waste treatment unit according to claim 8 as a primary fermentation tank for performing pretreatment.