JP2000203974A - Treatment of organic waste and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for treating org. waste by which the waste is made completely odorless in any area including a cold district and a device for performing the method. SOLUTION: In the method for treating org. waste utilizing the fermenting and decomposing action of a microorganism, a series of fermentation stages are conducted in a partitioned fermentation device A to prevent the emission of the malodorous air to the outside. The malodorous air in the device A is introduced into a liq. tank B1 in a separately installed deodorization device B to make the malodorous material in the air absorbed in the liq. Then the malodorous air recovered from the upper part of the liq. tank is introduced into a carbonaceous substrate being fermented in a deodorizing fermentation lane 201 provided in a deodorization space, deodorized by fermentation and discharged into the outside air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to sewage treatment sludge containing organic matter, food sludge such as okara, and food waste such as residue (remaining rice). And other organic wastes) into organic fertilizers useful for horticulture and agriculture.
The present invention relates to an improved invention for equipment for performing the method.

[0002]

2. Description of the Related Art In recent years, sewage treatment facilities have been completed nationwide, and each local government has difficulty in treating sewage sludge generated from such facilities. In addition, the treatment of food sludge such as starch generated during okara or food processing generated in the manufacturing process of tofu, or food waste such as residue generated in restaurants, etc., is similar to the case of the above-described sewage sludge. It is the present situation that makes each manufacturer or local government suffer.

On the other hand, as for organic fertilizers indispensable for agriculture or horticulture, fertilizer manufacturers currently import expensive raw materials from foreign countries and manufacture them.

[0004] In view of the above situation, the present applicant has proposed an organic waste treatment method for converting the above-mentioned sewage sludge and food waste into an organic fertilizer useful for agriculture or horticulture, and a method for implementing the method. (Japanese Patent Application Laid-Open No. 9-346169, International Patent Application No. (PCT / JP
98/02655)). This organic waste treatment method,
Using an active mixed microorganism that effectively fermentes and decomposes organic waste (obtained at the Fukunaga Microbiological Laboratory Co., Ltd., located at 2705, Funatsu-cho, Himeji-shi, Hyogo), it is possible to partially cool regions (tohoku, Hokkaido, etc.) ) Except for the need for external heat energy, and with the exception of organic fertilizer-specific odors (odors), it is a revolutionary product that emits almost no foul odor similar to the so-called "rot odor". is there.

[0005] However, when equipment for performing such a treatment method is arranged in a residential area, even a slight smell (smell) peculiar to the fertilizer may cause a problem due to individual differences. Under the current situation, there was a limit to installation in residential areas. However, on the other hand, residential areas are a source of organic waste and disposal in the suburbs is not efficient, and opposition from the residents around the suburbs has become active, presenting a complex problem.

[0006] Since the above-mentioned treatment method and equipment are fermentation decomposition treatments by microorganisms, when any one of the fermentation conditions is inhibited, specifically, “temperature conditions” which are highly likely in cold regions. If conditions such as "moisture adjustment" or "defective switching" are disturbed, an odor will be generated.

The present invention has been made in view of such a situation, and provides an organic waste treatment method which can be completely deodorized in all regions including a cold region, and a facility for implementing the method. The purpose is to.

[0008]

The method for treating organic waste according to claim 1 of the present invention comprises the steps of: (a) treating an organic waste such as sewage sludge with a substantially equal amount of sawdust, straw, rice husk, branches, and bark; , Wood chips, barks, ducts or the like, or a mixture thereof selected from the above, and at the same time, an active mixed microorganism having an action of fermenting and decomposing organic substances is added at a predetermined ratio; After the treatment of (a), the water content is adjusted so that the humidity becomes suitable for the fermentation decomposition action of the above-mentioned active mixed microorganism. (C) Next, the one after the treatment of (b) is added to the fermentation lane. The fermentation is performed to a depth at which the internal temperature during fermentation becomes approximately 65 to 85 ° C., and aeration is performed in the interior until the fermentation process of (e) is completed so that oxygen is sufficiently supplied to the interior of the fermentation.
(D) The moisture accumulated in the fermentation lane during fermentation is adjusted so as to maintain the above humidity, and is sufficiently stirred from the bottom to the surface of the fermentation lane approximately once or twice a day. So that the work is done
(E) The step (d) is performed for about 2 months when fermentation is completed, and (f) When the fermentation is completed, the fermentation lane is taken out of the fermentation lane, and the humidified yard is further subjected to a humidity of 50-200 for about 2 months. While maintaining about 65%, 10
In the method for treating organic waste having a series of steps (a) to (f), which is aged while applying a turning operation once every 20 days, the series of steps (a) to (f) The process is performed in a state where the odorous air in the fermentation treatment space for performing the treatment process is not separated from the outside, and the odorous air in the fermentation treatment space is separately deodorized. To the space, and introduced into a liquid tank disposed in the deodorizing treatment space to absorb the odorous substance in the odorous air into the liquid, and then the odorous air collected from above the liquid tank is removed. The fermentation lane for deodorization provided in the deodorization treatment space is introduced into the carbonaceous substrate during fermentation, and is deodorized by fermentation there, and then discharged to the outside air. And

However, according to this organic waste treatment method, all of the odorous air generated in the fermentation process or the aging process of sewage sludge or the like is guided to the deodorization treatment space, and the inside of the deodorization treatment space. First, a part of the odorous substance of the odorous air is recovered in the liquid tank, and the remaining odorous substance is also decomposed by the fermentation in the carbon base material by the active mixed microorganisms, and the odorous substance is almost removed from the odorous air. (Air) is released to the outside air. In addition, if the liquid in the liquid tank is used for adjusting the water content for smooth fermentation, the odorous substances (organic substances) contained in the liquid are also decomposed by the fermentation. Is also unnecessary. Also,
Since the odorous air is heated to a predetermined temperature in the fermentation treatment space, when installed in a cold region, the odorous air is used for aeration into the carbon substrate in the fermentation lane for deodorization. When it is used, it is not necessary to heat, so that energy saving of the entire organic waste treatment system is promoted. Of course, the carbonaceous substrate in the fermentation lane provided in the deodorizing treatment space also becomes a high-quality organic fertilizer by the fermentation action of the active mixed microorganism.

In the above-mentioned organic waste treatment method,
As described in claim 2, the liquid in the liquid tank may be water, and thus can be obtained easily and at low cost.

Further, in the above organic waste treatment method, the liquid in the liquid tank is used for adjusting the water content of the fermentation lane for deodorization in the deodorization treatment space. Water containing an odor substance can be internally treated in the space, and since the odor substance is an organic substance, the fermentation action is promoted as well as the water content is adjusted.

[0012] In the above-mentioned organic waste treatment method,
When the aeration is configured to be supplied by heating the outside air temperature so that the internal temperature accumulated in the fermentation lane is approximately 65 to 85 ° C. Can maintain normal fermentation degradation throughout the year, even in the coldest regions of
Odor can be positively prevented.

Further, in the above-mentioned organic waste treatment method, the turning operation is performed by a combined operation of a feeding operation and a direction different from the feeding operation so as to prevent solidification in the fermentation lane. Then, it is possible to prevent abnormal fermentation which is caused by not satisfying the conditions such as "temperature condition", "moisture adjustment", or "defective switching".

Further, the organic waste treatment equipment according to the present invention is provided with a fermentation lane composed of a pair of left and right walls extending in a longitudinal direction and an upper part of the left and right walls of the fermentation lane along the longitudinal direction. The traveling rail, the aeration equipment for blowing air from the floor surface and / or the wall surface of the fermentation lane, and the tip of the lane while sufficiently agitating from the bottom to the surface of the fermentation lane while traveling on the traveling rail. The fermentation lane, a fermentation yard provided at or near the tip of the fermentation lane, and a fermentation treatment facility equipped with a sprinkler provided in the fermentation lane and the ripening yard. In an organic waste treatment facility that treats organic waste such as treated sludge using microorganisms, the outer wall and ceiling surround this fermentation treatment facility. An air-collecting device for collecting odorous air in the fermentation processing equipment is provided at or near the ceiling portion, and an external wall is provided separately from the fermentation processing equipment. A deodorizing treatment facility is provided, which is separated from the outside air. A fermentation lane for deodorization is provided in which a liquid tank and a carbonaceous base material to which an active mixed microorganism is added to adjust the water content are contained, and the fermentation action is performed. And the air collecting device is connected to a liquid tank in the deodorizing treatment equipment via an exhaust passage, and air collecting means is provided above the liquid tank, and the air collecting device is raised from the liquid tank. The odor air is introduced into the deodorizing fermentation lane in the deodorizing treatment facility through the air supply passage, and passes through the carbonaceous base material during fermentation in the deodorizing fermentation lane to emit odor. It is characterized by exhausting most of the odor components in the air to the outside. That.

According to this organic waste treatment facility, the organic waste treatment method according to the first aspect can be implemented at low cost.

In this organic waste treatment facility,
According to a seventh aspect of the present invention, if a spraying device for spraying the water in the liquid tank into the deodorizing fermentation lane of the deodorizing treatment equipment is provided, the apparatus according to the third aspect can be implemented.

Further, in this organic waste treatment equipment, as in claim 8, the switching device has an upper end located near the upper end of the partition wall of the fermentation lane and a lower end movable up and down from the bottom of the fermentation lane to an upper position. And a pair of left and right chains wound between a shaft of an upper sprocket disposed at an upper end of the pair of left and right arm members and a shaft of a lower sprocket disposed at a lower end of the pair of left and right arm members. A plurality of slat plates passed between the pair of left and right chains so as to form a slat conveyor, a scraping plate erected from the slat plates, a driving device for driving the pair of left and right chains, Lifting means for raising and lowering the arm member, and at the time of turning back, the lower end of the arm member is lowered so that the arm member is inclined obliquely and the scraper is moved upward and downward by the driving device. With traveling fermentation lane while rotating between sprocket and at an appropriate timing during the running is configured for lifting the arm member, the equipment in which the method of the claim 5 can be performed.

In this organic waste treatment facility,
According to a ninth aspect of the present invention, when the aeration equipment is provided with a heater having a variable capacity which can be changed depending on the outside air temperature, the equipment according to the fourth aspect can be implemented.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an organic waste treatment method according to the present invention and equipment for implementing the method will be described with reference to the drawings. FIG. 1 is a plan view showing the overall configuration of the organic waste treatment facility, and FIG. 2 is an enlarged view of the configuration of the deodorization treatment facility shown in FIG.
(B) is a view taken in the direction of the arrow II in (a), FIG. 3 is an enlarged view showing a cross-sectional configuration of the fermentation lane, FIG. 4 is a side view showing a configuration of the cutting device, and FIG. II arrow view, FIG. 6 is a perspective view showing a configuration of a sieving apparatus for generating the generated organic fertilizer shown in FIG. 1 to a predetermined roughness, and FIG. 7 is a plan view showing a configuration of a bag packing apparatus and a palletizer. .

In FIG. 1, A is a fermentation treatment facility in which the interior is a fermentation treatment space, B is a deodorization treatment facility in which a deodorization treatment space is provided, and in this embodiment, the deodorization treatment facility B is physically separated. (Water tank) B1 arranged at the position of, and other devices B2 including a deodorizing fermentation lane 201 and a deodorizing device 202 having a box gutter-shaped cross section. As shown in FIG.
On the ceiling of the building of the above fermentation processing equipment A, there is an air duct 2
10A, and a suction device 210B for collecting air is provided at the end of the duct 210A. That is, in this embodiment, the air collecting device 210 is composed of the air collecting duct 210A and the air collecting suction device 210B. The suction device 210B for air collection is connected via a duct 212 to a compressor 211 for pressurizing and sending air to the water tank B1 side, and a pipe 213 for air sending is connected from the compressor 211 for pressurizing. The end of the pipe 213 is extended and connected to an air supply device 214 provided at the bottom of the water tank B1 as shown in an enlarged view in FIG. The air supply device 214 is formed of a pipe having a large number of holes formed therein and a branch branched in its entirety. However, the air blower 214 may be a perforated plate, and preferably has a size having an area approximately equal to the bottom surface of the water tank B1.
As shown in FIG. 2, the water tank B1 has a closed space as a whole, a ceiling thereof having an inverted funnel shape, and one end of an air supply pipe 215 opened at the uppermost end of the inverted funnel shape. The tip of this pipe 215 is connected to an aeration pipe 216 provided under the floor of the deodorizing fermentation lane 201 provided in another adjacent building. Further, in addition to the pipe 216, a pipe (not shown) for supplying fresh air with a large amount of oxygen may be provided so as to introduce outside air. An air blower that does not need to be installed, and if heating is required, a heater whose capacity is variable according to the outside air temperature is attached. In the building where the deodorizing fermentation lane 201 is arranged, a deodorizing device 217 having an inlet opening inside the building is provided. This deodorizing device 2
Various known devices are conceivable as 17, for example, a device using activated carbon as a filter, a device decomposing by ozone, a deodorizing device using ultraviolet light and a photocatalyst, and the like. By the way, the base end of the water supply pipe 218 is open at the bottom of the water tank B1, and the distal end of the water supply pipe 218 is connected to the water sprinkling device 219 provided above the deodorizing fermentation lane 201. . The sprinkler 219 may be, for example, a pipe having a large number of holes for sprinkling water in a field or the like. Further, the water tank B1 is configured to be supplied with fresh water such as tap water or well water automatically when the amount of water decreases. The deodorizing fermentation lane 201
A rail for traveling (see FIGS. 3 to 5) is disposed on both side walls 201a of the fermentation processing equipment A shown in FIGS. The switching device M runs, and the same switching operation as in the fermentation treatment facility A is performed. In the case of the fermentation lane 201 for deodorization, the air supplied to the carbonaceous substrate during fermentation uses the odorous air from the fermentation treatment equipment A, and the water sprinkled in the water tank B1. In that the water supplied from the plant is used.

Next, the fermentation treatment facility A will be described. In this fermentation treatment facility A, ten rows (lanes) of fermentation lanes 1 each having a length of 45 m are arranged. As shown in FIG. 3, the fermentation lane 1 has the same configuration as the deodorization fermentation lane 201 except for the length, that is, the wall 1a is formed on both sides, and the cross section has a box gutter shape. ,and,
In the present embodiment, the width of the fermentation lane 1, that is, the effective width between the side walls 1a is about 3 m, and the effective depth is about 2 m. 3, the floor surface 1b of the fermentation lane 1 is flat, and the floor surface 1b has a groove extending across each fermentation lane 1 as shown in FIG. 1d is formed, and a so-called "PVC pipe" 10 made of 100.phi. Vinyl chloride is buried in this groove as shown in FIG. On the surface of the “PVC pipe”, a plurality of blowout holes are formed, and the outside air is pressure-fed from a blower 11 provided at a base end portion,
It forms an aeration facility. In this embodiment, air pressurized to about 0.5 atm is supplied. Also,
The blower 11 has a variable capacity heater (not shown).
Is built in, and air at a predetermined temperature is blown in accordance with the outside air temperature. Although not shown, the "PVC pipe" may be buried in the wall surface in addition to the floor surface, or may be buried only in the wall surface instead of the floor surface to blow air from both sides of the fermentation lane. The configuration may be as follows. At the upper end of the wall surface 1a, a running rail 2 is disposed along the fermentation lane 1. On the running rail 2, a switching device M shown in FIGS.
Are arranged so as to be able to run. This switching device M
As shown in FIG. 1, a running rail 13 is buried at the base end of the fermentation lane 1 so as to be able to selectively run on each of the fermentation lanes 1 and is orthogonal to the lane 1. The electric self-propelled traverser 14 is configured to be able to transport the switching device M to each fermentation lane 1. That is, a rail 14a is arranged at the same width and the same height at the upper end of the traverser 14 so as to coincide with the traveling rail 2, and the turning device M is temporarily mounted on the rail 14a. Then, the switching device M is transported (transversely fed) from one fermentation lane 1 to another fermentation lane 1 housed and juxtaposed. As shown in FIGS. 4 and 5, the switching device M is configured such that the arm members 21 are paired on both sides of a box-shaped frame 20 so as to be swingable about a pivot shaft 21A. Has been attached. At both ends (upper and lower ends) of each of the arm members 21, sprockets are provided so as to be rotatable in pairs, and the sprockets at both ends are provided with the left and right chains 23 rotatably endlessly. Has been established. A narrow slat plate 24 is continuously arranged between the left and right chains 23 as if it were a conveyor belt of a slat conveyor, and scraping plates 25 are respectively provided on the surface of the slat plate 24. Have been. The shaft of the sprocket on the upper side of the arm member 21 is connected to an electric motor 26 provided at the upper end of the frame 20 via a chain 27 and a sprocket. The slat plate 24 is configured to rotate between the upper and lower sprockets of the arm member 21. In the middle of the arm member 21, one end of a chain 28a whose base end is wound around a sprocket 28 on the side of the electric motor 22 is attached. By performing the turning operation, the turning operation between the upper and lower sprockets in a state where the turning operation is inclined is performed, and a combined operation of raising and lowering the arm member 21 is performed so as to be orthogonal to the turning operation. It is configured to prevent the carbonaceous substrate during fermentation from trying to solidify. In addition, the arm member 21 can be raised and lowered to a desired position by a lifting operation so that the arm member 21 has a predetermined inclination angle while the vehicle is not traveling or while traveling. In addition, running wheels 29 are disposed at the four lower corners of the frame 20, and the wheels 29 on the tip side (the left end side in FIG. 5) are driven by an electric motor 30 disposed at the upper end of the frame 20. It is configured as follows. That is, the electric motor 30 is configured so that the switching device M can travel on the traveling rail 2. In the case of this embodiment, the running speed of the switching device M is configured to be freely adjustable, but is generally 1 m / min.
The switching operation is performed according to the traveling speed.

By the way, at the base end of the fermentation lane 1,
That is, in FIG.
A sludge carry-in yard 9 is formed. This sludge carry-in yard 9 is connected to a road through which vehicles loaded with organic waste such as sewage sludge can pass, and the floor surface is made of a concrete plane. In this embodiment, the opening of the building for vehicle entry is provided with an openable shutter and an air curtain device. When the vehicle enters, the shutter is opened and the air curtain device is activated, so that the inside of the building is open. It is configured not to leak odor air to the outside. Further, if necessary, a high-performance suction device for collecting air 210B is used to make the building a negative pressure with respect to the outside air side, so that the air inside the building does not leak to the outside air side. May be. On the other hand, a partition wall 40 is formed at a tip portion of the fermentation lane 1, that is, a lower portion in FIG. 1 at a distance of about 10 m, and one of the partition walls 40, on the left side of the partition 40 in FIG. An aging yard 3 is arranged. In this embodiment, the aged yard 3 is formed on a flat floor at the ground level.

On the other side of the partition wall 40, that is, on the right side in FIG. 1, the stockyard 4 where the matured, that is, generated organic fertilizer is temporarily stored.
Are formed.

A sieving apparatus 5 shown in FIG. 6 is provided adjacent to the stock yard 4 for producing the produced organic fertilizer to a desired roughness, and extends from the bottom of the hopper 51. The belt conveyors 52 and 53 supply the organic fertilizer of the stockyard 4 to a sieve cage 54 around which a wire mesh having a predetermined roughness is stretched in a cylindrical shape. The fertilizer is configured to fall. In this embodiment, a parallel shaft-like rotating shaft 55a is provided above the sieve cage 54, and the narrow rubber plate 5 is provided on the rotating shaft 55a at appropriate intervals.
5b is fixed at one end, and its tip is connected to the sieve cage 54.
In order to prevent the organic fertilizer from being clogged in the wire mesh portion, the wire mesh portion is hit.

In FIG. 1, below the sieving device 5, a bagging device for automatically packing organic fertilizer produced to a desired roughness in a plastic bag and palletizing it on a pallet. 6 are provided. This bag filling device 6
As shown in an enlarged view in FIG. 7, belt conveyors 62 and 63 extended from the bottom of the hopper 61
A supply port (not shown) of a well-known vertical packaging device 64 below.
And the organic fertilizer bagged by the packaging device 64 is conveyed by a belt conveyor 69 (hidden below the belt conveyor 63) and a slat conveyor 65 to a standby station 66, from which the standby station 66 The palletizing articulated robot 67 is configured to stack a predetermined amount on the adjacent pallet 68.

The hopper 51 and the hopper 61
The upper part has a large opening so that it can be put in from the bucket of the wheel loader, and the opening opened to the subsequent conveyor at the lower end so that the granular organic fertilizer is not clogged. As shown in FIG. 8 in an enlarged manner, a cutting device 69 for forcibly cutting the organic fertilizer is provided. That is, the cutting device 69 includes a propeller-shaped cutting blade 69a, a pivot shaft 69b that rotatably supports the cutting blade 69a, and the pivot shaft 69b that is connected to the subsequent conveyor 52 via a drive chain 69c.
Alternatively, it is connected to and driven by 62 drive shafts.

By using the organic waste treatment equipment configured as described above, an organic waste treatment method can be performed as follows. That is, before a vehicle (truck) loaded with organic waste such as sewage sludge arrives, the amount (equivalent in weight ratio) of the amount of organic waste loaded on the truck in the sludge carry-in yard 9 is equivalent. Sawdust, straw,
A carbonaceous substrate made of rice husks, branches, bark, wood chips, barks, ducts, or a mixture selected from the above is laid in a substantially flat state. At this time, the shutter of the opening into which the truck enters the building of the fermentation treatment facility A is in a closed state. To the carbonaceous base material, an active mixed microorganism (obtained from Fukunaga Microbiological Laboratory Co., Ltd. (located at 2705, Funatsu-cho, Himeji-shi, Hyogo)) was added at a rate of approximately 100 g per 1 t of the material to be treated. Keep it. An analysis example of the composition of the active mixed microorganism is described as a table at the end of the embodiment of the present specification. When the vehicle equipped with the organic waste arrives, the shutter of the building of the fermentation treatment facility A opens, and the air curtain device operates to shut off the opening from the outside air.
At this time, if the inside of the building of the fermentation treatment equipment A is set at a negative pressure compared to the outside air side, the leakage of odorous air from the inside of the building together with the blocking of the outside air by the air curtain is more completely prevented. it can.

The truck that has entered the building discharges organic waste in a state of spreading on the carbonaceous substrate. Next, using a bucket of a shovel loader or the like (which may be another device such as a bucket of a crane), a carbonaceous substrate mixed with the above-mentioned active mixed microorganisms is sown thereon, and organic waste is disposed. The product is sandwiched, after which the overall humidity is approximately 65-75% (preferably 70-75%).
%) To adjust the water content. Then, the pretreated material is put into the fermentation lane 1 whose base end is vacant using a bucket such as the shovel loader. Then, when it is put into the fermentation lane 1, fresh air is introduced from the bottom side by aeration equipment into a mixture of the carbonaceous base material, the organic waste and the active mixed microorganisms (referred to as an object to be treated). Supplied. At this time, when the outside air temperature is low enough to hinder fermentation, for example, at 10 ° C. below freezing, a heater built in the blower 11 is operated, and
Heated and supplied to -10 ° C. Therefore, fermentation can be smoothly performed in the fermentation lane 1 even in a cold region such as Hokkaido. Then, in the case of this embodiment, once a day, the above-mentioned switching device M is brought into contact with fresh air by remote control of an operator, and from the bottom of the fermentation lane 1 to the surface. The switching operation is performed by the above-described composite operation so that a certain object is turned back and that it is prevented from hardening. When the object to be processed is turned back in this way, the turning device M conveys the object to the front end side of the fermentation lane 1 by about 1 to 2 m. In the fermentation lane 1, in a state where the active mixed microorganisms perform fermentation, inside the fermentation lane 1,
The temperature is approximately 75 to 85 ° C. In other words, the internal temperature can be increased by increasing the thickness of the object to be processed, and by adjusting (setting) the thickness,
During fermentation, the internal temperature may be set to the above-mentioned temperature. Further, since water evaporates due to the heat of the fermentation action, water is adjusted by spraying water so that the humidity of the object to be processed is always 65 to 75% (preferably 70%). This moisture adjustment may be performed by arranging a spray nozzle to spray, or may be supplied to the switching device M by connecting the spray nozzle and a water tank (or a water source and a pipe such as a hose). ) May be provided. Then, as described above, aeration, moisture adjustment, and cutback processing are performed, and fermentation is performed in this fermentation lane 1 for about two months. During this time, the active mixed microorganisms decompose the organic waste and the carbonaceous substrate into useful organic substances. Then, in the case of this embodiment, the object to be treated is advanced by the above-mentioned turning-over device M over about two months to the tip of the fermentation lane 1 having a length of 45 m described above. It can be said that the organic waste which itself has generated an offensive odor can be completely eliminated through the fermentation treatment step because the active mixed microorganisms are organically decomposed in the fermentation lane 1 and the deodorizing action of the carbonaceous base material. It does not smell as bad. The fermentation-processed material sent to the end of the fermentation lane 1 and having undergone the fermentation treatment is conveyed to the ripening yard 3 by the shovel loader, where it is approximately 50 to 65% (preferably 60%). ) And water content is adjusted to 10-2.
The excavator loader performs a turn-back operation once a day. And in this aging yard 3,
When matured, it becomes an organic fertilizer that can be used for agriculture or horticulture. And, in this way, the material to be treated generated in the organic fertilizer is stored in the adjacent stockyard 4.
Is transported by a transport device such as a shovel loader,
Stored here. By the way, in this organic waste treatment facility, in the horticulture or agriculture, the above-mentioned sieving apparatus 5 treats the organic waste into a predetermined mesh (particle size) suitable for the use so as to exhibit proper performance. That is, when the organic fertilizer stored in the stock yard 4 is put into the hopper 51 of the sieving apparatus 5 by the shovel loader, the organic fertilizer is supplied to the sieving cage 54 by the belt conveyors 52 and 53, and is processed to a desired particle size. And fall down. Next, when the dropped organic fertilizer is put into the hopper 61 of the bag filling device 6 by the shovel loader, the packing devices 64 are fed by the belt conveyors 62 and 63.
Is supplied to the supply port, and is packed here. The bagged organic fertilizer is conveyed to a standby station 66 by a belt conveyor 64 and a slat conveyor 65, and subsequently stacked by an articulated robot 67 on a pallet arranged adjacently, and shipped. It will be in a waiting state.

By the way, when the traverser 14 is not required, that is, the traversing device can be traversed between the fermentation lanes 1 instead of the switching device M of the above-described embodiment, the sludge at the base end of the fermentation lane 1 can be obtained. Since the work line from the carry-in yard 9 to the fermentation lane 1 does not interfere with the traveling trajectory of the traverser 14, the degree of freedom of work is increased, workability is improved, and work safety can be improved. In addition, it becomes possible to promote unmanned operation of the switching work. That is to say, referring to FIGS. 9 to 11, in this embodiment, the running rails 2 are formed of the rightmost wall surface 1a and the leftmost left wall surface 1a of the fermentation lanes 1 in a plurality of rows. At the upper end, one pair is arranged on each side. A self-propelled traveling girder device 100 can travel between these wall surfaces 1a on the traveling rail 2 on the wall surface 1a along the longitudinal direction of the fermentation lane 1 (see arrow X in FIG. 9). It is arranged in. The traveling girder device 100 is provided with a pair of traversing rails 101 in a direction crossing each fermentation lane 1, that is, in a direction orthogonal to the traveling rails 2. M is arranged so that it can traverse freely. That is, the switching device M is configured to run on the traversing rail 101 in a direction crossing each fermentation lane 1 by the traversing electric motor 130 arranged in the switching device M. The switching device M itself has basically the same configuration as that shown in FIGS. 4 and 4 except that the electric motor 30 is replaced with the electric motor 130. I have. 4 and 5
9 to 11 are denoted by the same reference numerals. Although not shown, the traveling girder device 100 includes:
An electric drive device for traveling on the traveling rail 2 is provided at a position where the traversing operation of the switching device M is not obstructed. The traveling girder device 100 and the turning device M configured as described above can be automatically operated as described below by connecting to a control device (not shown). Specifically, as shown in the flowchart of FIG. 12, when the start button is turned ON, the control device operates, and first, it is checked whether or not the traveling girder device 100 and the turning device M are located at the initial positions. That is, it is checked whether the traveling girder device 100 is located at the tip of the first fermentation lane 1 and the turning device M is located at the right end (or left end) of the traveling girder device 100. Then, when the traveling girder device 100 and the turning device M are located at the initial position, the electric motor 22 of the turning device M is operated to lower the tip of the arm member 21 near the floor of the fermentation lane 1. Next, the electric motor 26 operates and the slat plate 2
4 rotates between the upper and lower sprockets of the arm member 21, and the electric motor of the electric driving device of the traveling girder device 100 (not shown) operates, so that the traveling girder device 100 travels along the traveling rail 2. Start. Then, the control device detects that the traveling girder device 100 has traveled to the base end of the fermentation lane 1, stops the traveling of the traveling girder device 100, and stops the electric motor 26,
Next, the electric motor 22 is operated to lift the tip of the arm member 21 upward to make it horizontal. Then, the electric motor 130 is operated to traverse the turning device M in the lateral direction to move the turning device M to the next fermentation lane 1 and return the traveling girder device 100 to the tip of the fermentation lane 1. In the fermentation lane 1, the same switching operation is performed, and when the switching operation in the fermentation lane 1 is completed, the process moves to the next fermentation lane 1 and performs the same operation. Then, the above operation is repeated, and finally, when the reversing work of all the fermentation lanes 1 is completed, the traveling girder device 100 and the reversing device M return to the first position (if a standby position is set separately, the standby position is set). Return to position) and wait for the next switching operation.

Along with the traveling girder device 100 and the turning device M, the aeration equipment and the watering device are connected to a control device, and a humidity sensor and an oxygen detection sensor are arranged in the fermentation lane 1 to be connected thereto. By connecting with the control device, in addition to the automatic operation of the traveling girder device 100 and the turning device M described above, when the humidity sensor detects a shortage of water, the sprinkler is turned on to spray water and adjust the water. ,Also,
If the aeration equipment is turned on and fresh air is supplied to perform oxygen adjustment when the accumulated inside is short of oxygen, a completely automatic organic waste treatment equipment can be obtained.

Thus, according to the above-described organic waste treatment method and equipment, when utilizing the organic fermentation decomposition action of the active mixed microorganism, the temperature conditions necessary for fermentation are determined by adjusting the temperature of the material to be treated to the above-described depth. No heat source is required because the heat generated during fermentation is effectively used by the deposition. In other words, in terms of energy, if only power for aeration and power for switching are supplied, organic waste such as sewage sludge, which had been difficult to dispose of conventionally, is generated by wood processing or old wood treatment. The chips can be converted into organic fertilizers necessary for growing plants. Further, in a cold region where the heat generated during the fermentation cannot cope with the heat, the above-mentioned fermentation can be performed smoothly by operating the heater with an appropriate capacity in accordance with the outside air temperature. In addition, when a new material to be treated is sequentially introduced into the fermentation lane where the base is vacant,
Since a continuous process is performed in which organic fermentation decomposition products are sequentially generated from the end of the fermentation lane, it is possible to process about 100 t of organic waste per month per fermentation lane.

In the processing method and equipment according to the embodiment of the present invention, the odor (odor) generated in the fermentation processing equipment A and confined in the fermentation processing equipment is passed through the collection duct 210A. And the suction device 210B for collecting air
As a result, the air is sent to the compressor 211 side, where it is pressurized and released into the water from the bottom of the water tank B1, and by bubbling in the water tank B1, some of the odorous substances are collected in the water in the water tank B1. The odorous substances remaining in the odorous air rising above the water surface of the water tank B1 also pass through the pipe 213 for air supply and the air supply tool 214 into the carbonaceous substrate during fermentation in the fermentation lane 201 for deodorization. After aeration,
Alternatively, air is sent as part of aeration and fermented and decomposed in the carbonaceous substrate during this fermentation. In addition, since organic waste such as sewage sludge is not mixed into the fermentation lane 201 for deodorization as in the fermentation treatment facility A, the odorous air containing odorous substances from the fermentation lane 201 for deodorization does not exist at all. Does not occur. Further, in the case of this embodiment, the deodorizing device 202 is disposed, and the air in the building covering the deodorizing fermentation lane 201 is discharged to the outside air in a state where the air is completely deodorized by the deodorizing device 202. (Exhausted). The water from which a part of the odorous substance in the water tank B1 is recovered is used for adjusting the water content of the carbonaceous substrate during the fermentation in the fermentation lane 201 for deodorization. Fermented and decomposed inside.

Further, even if the carbonaceous substrate tries to solidify in the fermentation lane 1 and the deodorization fermentation lane 201 due to, for example, lack of water or a decrease in fermentation action for some reason, as described above, Since the switching device M provided in each lane is prevented by performing the combined operation as described above, the fermentation is promoted more stably even if the conditions are slightly changed.

[0034]

[Table 1]

[0035]

[Table 2]

[0036]

[Table 3]

[0037]

[Table 4]

Then, colonies which appeared in the petri dish by the serial dilution method were picked and used as test strains for identification.

In identifying the species of bacteria, molds, actinomycetes and yeasts, the classifications described in Table 5 were used.
The bacterial species was identified.

[0040]

[Table 5]

The major species of bacteria, fungi, actinomycetes and yeast contained in the active mixed microorganisms separated and identified according to the above procedure are exemplified in Table 6 below.

[0042]

[Table 6]

[0043]

According to the method and the equipment for treating organic waste according to the present invention, the fine odor is discharged to the outside air in a state where it is removed as described above. Organic waste disposal can be carried out without any problem even if is installed in an urban area such as a residential area.

According to the method and the equipment for treating organic waste, the organic waste can be treated without emitting any odor to the outside even in extremely cold regions.

Of course, according to the organic waste treatment method and equipment, sewage sludge or food waste which is difficult to treat, as well as chips and the like generated by a timber processing plant or old wood treatment, can be completely discharged to the outside. It is possible to produce an organic fertilizer useful for agriculture and horticulture by performing fermentation decomposition treatment without discharging any offensive odors and waste liquids, and in a short period of 4 months in total. In other words, it is difficult to dispose, and it is difficult for each local government or manufacturer to incinerate organic waste, such as sewage sludge or food waste, which is a source of concern, by a manufacturer or an old wood treatment company. By adding wood and active mixed microorganisms, it is possible to produce organic fertilizers useful for agriculture and horticulture etc. in a short time, in a relatively short space, and in a relatively small space, while saving energy. be able to.

According to the organic waste treatment equipment,
The organic waste treatment method can also be fully automated, and very few administrators can produce organic fertilizers useful for agriculture, horticulture, and the like very rationally.

[Brief description of the drawings]

FIG. 1 is a plan view showing an arrangement configuration of an organic waste treatment facility according to the present invention.

2 is an enlarged view of the configuration of the deodorizing treatment equipment shown in FIG. 1, wherein FIG. 2 (a) is a non-planar view, and FIG. 2 (b) is a side view taken along the line II of FIG.

FIG. 3 is an enlarged view showing a configuration of a cross section of a fermentation lane.

FIG. 4 is a side view showing a detailed configuration of a switching device used in the organic waste treatment facility shown in FIG.

5 is a view taken in the direction of arrows II-II in FIG. 4 showing a plan configuration of the switching device shown in FIG. 4;

FIG. 6 is a perspective view showing a configuration of a sieving apparatus for generating the generated organic fertilizer shown in FIG. 1 to a predetermined roughness (particle size).

FIG. 7 is a plan view showing a configuration of a bag filling device and a palletizer.

FIG. 8 is a perspective view showing a configuration of a cutting device provided at a lower end of a hopper.

FIG. 9 is a perspective view showing a configuration of a main part of a fermentation lane part of an organic waste treatment facility according to another embodiment.

FIG. 10 is a plan view showing a configuration of a switching device portion shown in FIG. 9;

FIG. 11 is a side view showing the configuration of the switching device shown in FIG. 9;

12 is a flowchart showing an automatic control process of the control device of the organic waste treatment equipment shown in FIG.

[Explanation of symbols]

 A: Fermentation treatment equipment B: Deodorization treatment equipment 1: Fermentation lane 201: Fermentation lane for deodorization B1: Water tank (liquid tank) M: Turning machine

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C05F 17/00 C05F 17/02 17/02 B09B 3/00 ZABA F-term (Reference) 4D004 AA02 AA12 BA04 CA15 CA19 CA45 CA48 CB50 CC03 CC08 CC15 DA02 DA03 DA06 DA08 DA09 4D059 AA03 AA07 BA01 BA03 BA27 BA44 DB33 EB01 EB06 EB10 EB20 4H061 AA02 AA03 CC41 CC42 CC51 CC55 EE02 EE61 EE66 GG18 GG43 GG30 KK30 GG67 KK30 KK67 GG67 KK67 KK67 KK67 KK67 KK

Claims (9)

[Claims] 1. An organic waste such as (a) sewage sludge,
Approximately equal amounts of sawdust, straw, rice husk, branches, bark, wood chips, bark, ducts, or a carbonaceous substrate made of a mixture selected from these, and an activity having a fermentative decomposition action of organic substances A mixed microorganism is added at a predetermined ratio, and (b) water content is adjusted so that the one subjected to the treatment of the above (a) has a humidity suitable for the fermentation / decomposition action of the active mixed microorganism. , (B) is completed, and the internal temperature during fermentation is approximately 6 to the fermentation lane.
The fermentation is performed at a depth of 5 to 85 ° C., and aeration is performed until the fermentation treatment of (e) is completed so that oxygen is sufficiently supplied to the inside of the deposited material.
(D) The moisture accumulated in the fermentation lane during fermentation is adjusted so as to maintain the above humidity, and is sufficiently stirred from the bottom to the surface of the fermentation lane approximately once or twice a day. So that the work is done
(E) The step (d) is performed for about 2 months when fermentation is completed, and (f) When the fermentation is completed, the fermentation lane is taken out of the fermentation lane, and the humidified yard is further subjected to a humidity of 50-200 for about 2 months. While maintaining about 65%, 10
An organic waste treatment method having a series of steps (a) to (f), which is aged while applying a turning operation once every 20 days, comprising the steps of (a) to (f). The process is performed in a state where the odorous air in the fermentation treatment space for performing the treatment process is not separated from the outside, and the odorous air in the fermentation treatment space is separately deodorized. To the space, and introduced into a liquid tank disposed in the deodorizing treatment space to absorb the odorous substance in the odorous air into the liquid, and then the odorous air collected from above the liquid tank is removed. The fermentation lane for deodorization provided in the deodorization treatment space is introduced into the carbonaceous substrate during fermentation, and is deodorized by fermentation there, and then discharged to the outside air. Organic waste treatment method. 2. The method according to claim 1, wherein the liquid in the liquid tank is water. 3. The method for treating organic waste according to claim 1, wherein the liquid in the liquid tank is used for adjusting the water content of a fermentation lane for deodorization in a deodorizing treatment space. 4. The method according to claim 1, wherein the aeration is such that the internal temperature deposited in the fermentation lane is approximately 65-85 ° C.
The method for treating organic waste according to any one of claims 1 to 3, wherein the supply is performed by adjusting the temperature by heating the outside air. 5. The method according to claim 1, wherein the switching operation is performed by a combined operation of a feeding operation and a direction different from the feeding operation so as to prevent solidification in the fermentation lane. The organic waste treatment method according to the item. 6. A fermentation lane composed of a pair of left and right wall surfaces extending in the longitudinal direction, a running rail disposed along the longitudinal direction above a pair of left and right wall surfaces of the fermentation lane, and a floor surface of the fermentation lane. And an aeration facility for blowing air from the wall surface or any one of them, an aeration device for feeding the fermentation lane forward to the front end of the fermentation lane while sufficiently stirring from the bottom to the surface of the fermentation lane while traveling on the traveling rail, and A fermentation yard provided at or near the tip, and a fermentation treatment facility equipped with a sprinkler provided in the fermentation lane and the ripening yard, using microorganisms to remove organic waste such as sewage sludge. In the organic waste treatment equipment, the periphery of the fermentation treatment equipment is formed in one space covered with an outer wall and a ceiling, and the ceiling part is Or in the vicinity thereof, an air collecting device for collecting odorous air in the fermentation processing equipment is provided, and separately from the fermentation processing equipment, a deodorization processing equipment separated from the outside air by an outer wall is provided. In this deodorizing treatment equipment, a liquid tank and a fermentation lane for deodorization, which contains a carbonaceous base material added with active mixed microorganisms and adjusted for water content and performs fermentation action, are arranged. Through a passage, connected to the inside of the liquid tank in the deodorizing treatment equipment, provided with a gas collecting means above the liquid tank, the odorous air rising from the liquid tank, through the air supply passage, The deodorization fermentation lane in the deodorization treatment equipment is configured to be guided into the fermentation lane, and the odorous components in the odorous air in the deodorization fermentation lane that have passed through the carbonaceous base material during fermentation have been substantially removed. Organic waste treatment equipment characterized in that wastewater is discharged to the outside. 7. The organic waste treatment equipment according to claim 6, further comprising a spraying device for spraying the water in the liquid tank into the deodorization fermentation lane of the deodorization treatment equipment. 8. A pair of left and right arm members having an upper end located near the upper end of the partition wall of the fermentation lane and a lower end configured to be movable up and down from the bottom of the fermentation lane to an upper position. A pair of left and right chains wound between a shaft of an upper sprocket arranged at an upper end of an arm member and a shaft of a lower sprocket arranged at a lower end, and a slat conveyor shape is formed between the pair of left and right chains. A plurality of passed slat plates and a scraping plate erected from the slat plate, a driving device for driving the pair of left and right chains, and a lifting means for lifting and lowering the pair of left and right arm members, When the lower end of the arm member is lowered and the arm member is obliquely inclined, and the scraper is driven between the upper and lower sprockets by the above-mentioned driving device while traveling on the fermentation lane. 8. The organic waste treatment equipment according to claim 6, wherein said arm member is moved up and down at an appropriate timing during said traveling. 9. The organic waste treatment equipment according to claim 6, wherein the aeration equipment is provided with a heater having a variable capacity that can be changed according to the outside air temperature. .