WO1999030846A1

WO1999030846A1 - Method and system for treating organic waste

Info

Publication number: WO1999030846A1
Application number: PCT/JP1998/002655
Authority: WO
Inventors: Isami Fukunaga
Original assignee: Isami Fukunaga
Priority date: 1997-12-16
Filing date: 1998-06-15
Publication date: 1999-06-24
Also published as: AU7676198A; JP3378858B2

Abstract

A method and a system for treating organic waste by which organic waste and carbon-based materials such as sawdust can be processed into useful organic fertilizers by using a mixture of active microorganisms capable of fermenting and degrading organic matters. This method is characterized by mixing the organic waste with almost the same amount of the carbon-based material; adding the mixture of active microorganisms thereto; adjusting the moisture content, if necessary, to give a humidity of about 70 %; piling up the resultant mixture in a fermentation lane (1) at a depth of about 2 to 3 m; aerating the contents for about 2 months until the completion of the fermentation by agitating once or twice a day while controlling the moisture content; transferring the mixture after the completion of the fermentation into an aging yard (3); and then aging the fermented mixture therein for about 2 months under agitating at intervals of 10 to 20 days while maintaining the humidity at about 60 %.

Description

Details

Organic waste treatment method and equipment

[Technical field

The present invention relates to sewage treatment sludge containing organic matter, food sludge such as okara, or food waste such as residue (garbage) (these are collectively referred to as “organic waste such as sewage treatment sludge” in this specification. ) To an organic fertilizer useful for horticulture and agriculture, and a facility for implementing the method.

[Technical background]

In recent years, sewage treatment facilities have been completed nationwide, and the current situation is that each local government has difficulty in treating sewage treatment sludge generated from the facilities. In addition, the treatment of food waste such as starch generated from the tofu production process or during food processing, or food waste such as residues generated in restaurants, etc. is also the case of the above-mentioned sewage sludge. Similar to the above, it is the current situation that is making each power or local government suffer.

On the other hand, organic fertilizers, which are indispensable for agriculture or horticulture, are mainly produced by fertilizer manufacturers by importing expensive raw materials from foreign countries. It is.

The present invention has been made in view of such a situation. On the other hand, unnecessary organic waste is classified into sawdust, straw, rice husk, branches, bark, wood chip, bark, duct, and the like. Or a carbonaceous substrate consisting of a mixture selected from these, An object of the present invention is to provide an organic waste treatment method and equipment that can be used to produce useful organic fertilizers by using sex-mixed microorganisms.

[Disclosure of the Invention]

The organic waste treatment method according to the first invention is an organic waste treatment method for treating organic waste such as sewage treatment sludge using microorganisms.

An organic waste treatment method comprising the following steps (a) to (f).

(a) A carbonaceous substrate consisting of approximately the same amount of organic waste as sawdust, straw, rice husk, branches, bark, wood chips, bark, duct, etc., or a mixture selected from these. In addition to the addition of materials, active mixed microorganisms that have an enzyme-degrading effect on organic matter are added to organic wastes such as sewage sludge and a carbonaceous base material (referred to as “objects to be treated” in the examples). 1 t To about 100 g,

(b) Adjust the water content as necessary so that the humidity of about 70% is obtained after the treatment in (a) above.

(c) Next, the finished product of (b) is transferred to a fermentation lane with a depth force of about 2 to 3 m to a depth at which the internal temperature during fermentation is approximately 65 to 85. At the same time as the deposition, an air rate is applied to the inside of the deposited portion until the fermentation treatment of (e) is completed so that oxygen is sufficiently supplied to the deposited portion.

(d) While adjusting the water so that the humidity of the material deposited in the fermentation lane is maintained at about 70% humidity, at a rate of once or twice a day, Repeat the cutting so that the bottom of the fermentation lane is thoroughly stirred from the bottom to the surface.

(e) Complete the above step (d) for about 2 months when the fermentation is completed. (f) When the fermentation is completed, remove from the fermentation lane and

— In addition, the ripening is carried out once every 10 to 20 days while maintaining the humidity at about 50 to 65% for about 2 months. .

However, according to this organic waste treatment method, the sludge obtained by adding the carbonaceous base material and the active mixed microorganism to the sludge and adjusting the water content is deposited on the fermentation lane to the above-mentioned depth. Air is forced into it, and organic decomposition is promoted over time. Then, in such a state, the cutting operation is performed about once or twice a day, and the bottom and the surface of the fermentation lane are sufficiently stirred, and the accumulated material is sufficiently removed. The organic decomposition is promoted by contact with the atmosphere, and the fermentation is promoted evenly on the bottom and the surface. Preferably, by spraying water or the like during this reversing operation to adjust the water content, it is possible to perform uniform humidity adjustment on each part.

By performing such water adjustment and switching operations for about two months, organic wastes such as sewage sludge and carbonaceous substrates are completely organically decomposed by active mixed microorganisms. Is done.

Next, the above-mentioned organically decomposed product is cut back in an aging yard while maintaining the above-mentioned humidity for about 2 months and at the above-mentioned rate, whereby the ripening is carried out and horticulture is performed. Produces organic fertilizers useful for agriculture.

The organic waste treatment facility according to the second invention is an organic waste treatment facility for treating organic waste such as sewage treatment sludge using microorganisms.

This equipment comprises a fermentation lane composed of a pair of left and right wall surfaces extending in the longitudinal direction, a traveling rail disposed along the longitudinal direction above the pair of left and right wall surfaces of the fermentation lane, The floor of the yeast lane And an air-ratio equipment that blows air from one or both of the wall surfaces, and a switching device that feeds the fermentation lane forward to the tip of the lane while sufficiently agitating from the bottom to the surface while traveling on the traveling rail. A sludge carry-in yard provided at or near the base end of the fermentation lane, and a maturing yard provided at or near the front end of the fermentation lane. And a sprinkler provided in the sludge carry-in yard, the fermentation lane, and the ripening yard.

Further, another organic waste treatment facility according to the third invention is an organic waste treatment facility for treating organic waste such as sewage treatment sludge using microorganisms.

This equipment

A plurality of rows of fermentation lanes each constituted by a pair of left and right walls extending in the longitudinal direction;

Running rails arranged along the longitudinal direction on the upper right and left end walls of the multi-row fermentation lane;

A traveling girder device having a traversing rail which runs on the traveling rail and extends in a direction perpendicular to the traveling rail;

Air-raising equipment for blowing air from the floor and / or wall of the fermentation lane;

The moving girder device is arranged so as to be able to traverse freely on the traversing rail of the moving girder device, and is advanced to the tip of the fermentation lane while sufficiently stirring from the bottom to the surface of the fermentation lane by traveling of the moving girder device. The pile in the fermentation lane is cut back, and when the turning of one 1% fermentation lane is completed, it crosses over the fermentation lane on the side and the same cut is performed on this fermentation lane. A reversing device for returning

A sludge carrying yard provided at or near the base end of the fermentation lane, and a sludge transfer yard provided at or near the front end of the fermentation lane. And a sprinkling device provided in the sludge carry-in yard, the fermentation lane, and the ripening yard.

However, according to the second or third organic waste treatment equipment, the above-described organic waste treatment method according to the present invention can be performed.

That is, a carbonaceous substrate is laid on the base end of the fermentation lane, and organic waste such as sewage sludge is emptied on the carbonaceous substrate. After adjusting and feeding into the fermentation lane using a shovel loader or a bucket of crane, air is supplied from the bottom and / or wall surface of the fermentation lane. Thus, organic decomposition of the active mixed microorganism starts in the fermentation lane. Then, the cutting device is operated once or twice a day, and the surface is turned from the bottom and the fermentation lane is advanced. In other words, they are sequentially sent back to the end of the fermentation lane while being cut back. Then, in this fermentation lane, water is sprayed by the watering device so that the above-mentioned humidity is maintained. In this way, when the switching and the advance are completed by the switching device for approximately two months, organic waste such as sewage sludge and carbon and the like by the active mixed microorganisms are reduced. The base material is completely decomposed by organic decomposition and removed from the fermentation lane. Then, it is taken out to the ripening yard at the tip of the fermentation lane, where the water is adjusted to maintain the above-mentioned humidity by the sprinkler, and it is aged for about 2 months, and it is aged and useful organic Fertilizer is produced.

Further, in the organic waste treatment method according to the first invention, the switching operation in the fermentation lane is performed by a switching device, and the switching operation is performed by the fermentation process. In the case of agitation with forward feeding to the end of the lane, the amount of the advanced enzyme lane to be advanced is proportional to the amount of the fermentation. That is, the fermentation can be configured so that the fermentation is completed, and continuous treatment of organic waste can be performed.

Further, in the method for treating organic waste according to the first invention, the step (a) includes laying down the carbonaceous substrate in an amount substantially equal to that of the organic waste, and depositing the organic waste thereon. In addition to the above-mentioned procedure of adding the active mixed microorganisms to make them substantially uniform, even if organic waste such as sewage sludge is in a fluid state, it does not stain the floor surface, and搬送 It is easy to transport to the fermentation lane using buckets such as shovel loaders or crane. In other words, this is a preferable configuration because the machine processing becomes easy.

Furthermore, in the organic waste treatment method according to the first invention, in the ripening yard of (f), the fermented products are piled up in piles, and once every 10 to 20 days. Aging can be performed in approximately two months by ripening while giving the cutting operation at a high rate, and high-quality organic fertilizer can be produced.

Further, in the organic waste treatment equipment according to the second aspect of the present invention, the switching device includes: (a) a lower end sprocket provided at least in pairs near the bottom of the fermentation lane on both sides of the lane. An upper end sprocket provided near the upper end of the fermentation lane on both sides of the lane corresponding to the lower end sprocket, and an endless sprocket between the pair of lower end sprockets and the corresponding upper end sprocket. (B) a frame that supports the switching mechanism, and (c) a traveling rail that is disposed below the frame and that is disposed below the frame. If it is composed of a wheel running on the upper side and (d) a drive device for driving this device in the longitudinal direction of the fermentation lane, the turning operation and the advance operation in the fermentation lane are performed. Excellent configuration above It made.

Further, in the organic waste treatment facility, the fermentation lane is It runs in the direction perpendicular to these lanes at the base end of each of these lanes, and has the same width as the width of the above-mentioned travel rails in the same direction as the above-mentioned travel rails. If a traversing device having a mounting portion for mounting the reversing device is provided, the operation rate of the reversing device is increased in view of the time required for the reversing operation, which is very efficient. It becomes an organic waste treatment facility.

Further, in the organic waste treatment equipment according to the third invention, the switching device includes: (a) a lower end sprocket provided at least in pairs near the bottom of the fermentation lane on both sides of the lane. An upper end sprocket provided near the upper end of the fermentation lane on both sides of the lane corresponding to the lower end sprocket, and an endless sprocket between the pair of lower end sprockets and the corresponding upper end sprocket. (B) a frame supporting the above-mentioned switching mechanism, and (c) a leading end of the above-mentioned frame and the above-mentioned switching mechanism. A lifting device that moves up and down from the vicinity of the floor surface of the fermentation lane to a position above the wall surface, so that the traverser device does not traverse the base end of the fermentation lane. Work line is flat The equipment will be highly efficient without surface interference, and will provide the optimal configuration for automatic operation.

Further, the organic waste treatment facility of the organic waste treatment facility has a control device capable of automatically operating the traveling girder device and the switching device, and the control device includes a switching device. Move on the traversing rail to just above the fermentation lane, and at that position, operate the elevating device so that the tip of the turning device is located near the floor of the fermentation lane. Then, the traveling girder device is moved on the traveling rail to perform the turning work from one end of the fermentation lane to the other end. So that it is positioned above, then move the switching device on the traverse rail to just above the side fermentation lane. At that position, the elevating device is operated so that the tip of the turning device is positioned near the floor of the fermentation lane, and then the traveling girder device is moved on the traveling rail. A large labor saving can be achieved if the above-mentioned series of operations are performed automatically until all the fermentation lanes have been turned over, so that the reversing operation can be performed from one end of the fermentation lane to the other. Therefore, the organic waste treatment method according to claim 1 can be implemented at low cost.

Further, the organic waste treatment facility of the organic waste treatment facility is a control device capable of automatically operating the air ration facility and the sprinkler, and an oxygen sensor for detecting an oxygen amount in the fermentation lane. This control device has a detection sensor and a humidity sensor for detecting the humidity in the fermentation lane. When the humidity sensor becomes lower than a predetermined humidity, the control device operates the sprinkler for a predetermined time. In addition, when the oxygen detection sensor is automatically controlled so that the air-conditioning equipment is activated when the oxygen content becomes lower than a predetermined oxygen content value, the organic waste treatment method according to the first aspect of the present invention is improved. The organic waste treatment method according to claim 1 can be performed more homogeneously and completely unmanned, and can be performed at a low cost.

In the above-mentioned organic waste treatment equipment, a sieving device for forming organic fertilizer produced by aging to a predetermined roughness is provided at a tip of the aging yard, and a bag filling device is provided at a tip of the sieving device. In this way, it is possible to construct an integrated organic waste treatment facility, from transporting organic waste such as sewage sludge to organic fertilizer as bagged products.

: Brief description of drawings]

Fig. 1 shows the layout of the organic waste treatment facility according to the present invention. FIG.

FIG. 2 is an enlarged view showing the configuration of the fermentation lane viewed from the direction of arrows I-I in FIG.

FIG. 3 is a side view showing a configuration of a switching device used in the organic waste treatment facility shown in FIG.

FIG. 4 is a view taken in the direction of the arrows I--I--I in FIG. 3, showing the plan configuration of the switching device shown in FIG.

FIG. 5 is a perspective view showing a configuration of a sieving apparatus for producing the organic fertilizer produced in FIG. 1 to a predetermined roughness (grain size).

FIG. 6 is a plan view showing the configuration of the bagging device and the palletizer.

FIG. 7 is a perspective view showing the configuration of a cutting device provided at the lower end of the hopper.

FIG. 8 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. 9 is a plan view showing the configuration of the switching device portion shown in FIG.

FIG. 10 is a side view showing the configuration of the switching device shown in FIG.

FIG. 11 is a flowchart showing an automatic control process of the control device of the organic waste treatment facility shown in FIG.

[Best Mode for Carrying Out the Invention]

Hereinafter, an organic waste treatment method and equipment for implementing the method according to the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a fermentation lane having a length of 45 m. In this embodiment, the fermentation lanes 1 are arranged in 10 rows (lanes). This 酧 As shown in FIG. 2, the fermentation lane 1 has wall surfaces 1a formed on both sides and has a box gutter shape in cross section, and the width of the fermentation lane 1, that is, the wall surfaces on both sides. In this embodiment, the effective width between 1a is about 3 m, and the effective depth is about 2 m.

As shown in FIG. 2 in an enlarged scale, the floor 1b of the fermentation lane 1 is flat, and each floor 1b is formed on the floor 1b as shown in FIG. A groove is formed across the fermentation lane 1, and as shown in FIG. 2, a so-called “PVC pipe” 10 made of 100 Φ vinyl chloride is inserted into the groove as shown in FIG. It is buried. A plurality of blow-off holes are formed on the surface of the “PVC pipe”, and the air is blown from a blower 11 provided at the base end of the PVC pipe. Has formed. In this embodiment, air pressurized to about 0.5 atm is supplied. Although not shown, the "PVC pipe" may be embedded in the wall surface in addition to the floor surface, or may be embedded only in the wall surface instead of the floor surface, and may be installed on both sides of the fermentation lane. It may be configured to blow air out of it.

At the upper end of the wall 1a, a running rail 2 is disposed along the fermentation lane 1. On the running rail 2, a switching device shown in FIGS. M is configured to run.

As shown in FIG. 1, the switching device M is provided at the base end of the fermentation lane 1 so as to be able to selectively travel on each fermentation lane 1. The traveling rail 13 is buried, and the electric self-propelled traverser 14 is configured on the traveling rail 13 so as to be able to transport the above-mentioned switching device M to each fermentation lane 1. ing. That is, at the upper end of the traverser 14, a rail 14 a is arranged at the same width and the same height so as to coincide with the traveling rail 2, and the rail 14 a is provided. The switching device λί is temporarily mounted on the top, and is switched from one fermentation lane 1 to another fermentation lane 1 Transfer M.

At this point, as shown in FIGS. 3 and 4, the switching device M is configured such that an arm member 21 has a pivot shaft 21 A on both sides of a box-shaped frame 20. It is attached to the center in a swingable pair. At each end (upper end and lower end) of each of the arm members 21, a pair of sprockets are rotatably arranged, and the sprockets at both ends are provided with left and right chains 2, respectively. 3 is endlessly rotatable. A narrow slit plate 24 is continuously arranged between the left and right chains 23 as if it were a conveyor belt of a slit conveyor. On the surface of 24, open plates 25 are respectively set up.

The upper sprocket shaft 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. In the evening 26, a slit plate 24, such as the above-mentioned conveyor belt for the slit conveyor, 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 28 a whose base end is wound around a sprocket 28 on the side of the electric motor 22 is attached, and the chain 28 a is expanded and contracted. Thus, the tip of the arm member 21 can be lowered to a desired position.

In addition, at the four corners at the lower end of the frame 20, running wheels 29 are arranged, and the wheel 29 at the front end (left end in FIG. 4) is arranged at the upper end of the frame 20. It is configured to be driven by the motor. In other words, 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 traveling speed of the switching device N1 is set to 1 m per minute.

At this point, the basal part of fermentation lane 1 above, that is, At the upper end, a sludge carrying yard 9 formed over the pre-enzyme lane 1 is formed. This sludge loading 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 concrete.

On the other hand, a partition wall 40 is formed at the distal end of the fermentation lane 1, that is, a lower part in FIG.

On the other hand, an aging yard 3 is arranged on the left side of the partition wall 40 in FIG.

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, there is a stock yard 4 in which aged organic fertilizer is temporarily stored. Is formed.

Then, a sieve device 5 shown in FIG. 5 for generating the generated organic fertilizer to a desired roughness is disposed adjacent to the stock yard 4, and a bottom portion of the hopper 51 is provided. Belt Comparator 52 extended from

The organic fertilizer of the above-mentioned stock yard 4 is supplied to a sieve cage 54 around which a wire mesh having a predetermined roughness is stretched in a cylindrical shape by 53, and is formed below a desired roughness. The organic fertilizer is configured to fall. In this embodiment, a parallel-shaft rotating shaft 55a is disposed above the sieve cage 54, and a narrow rubber plate 5 is provided on the rotating shaft 55a at appropriate intervals. One end of 5b is fixed, and the tip is configured to hit the wire net portion of the sieve cage 54 in order to prevent clogging of the organic fertilizer in the wire net portion.

Then, in FIG. 1, below the sieving apparatus 5, the organic fertilizer produced to a desired roughness is automatically packed in a plastic bag and palletized on a pallet. A bagging device 6 is provided. As shown in FIG. 6, the bagging device 6 is located at the bottom of the hopper 6 1. Belt conveyors 62 and 63 extended from the section supply the water to a supply port (not shown) of a well-known vertical packaging device 64. The bagged organic fertilizer is fed to the belt conveyor 69 (hidden beneath the belt conveyor 63) and the slit conveyor 65 to provide the waiting station 66 From the standby station 66, and a predetermined amount is stacked on an adjacent palette 68 by an articulated robot 67 for pallet aging. Has been established.

The hopper 51 and the hopper 61 have a large opening at the upper part so that the wheel loader can be inserted from the packet, and the hopper 51 and the hopper 61 are opened toward the succeeding conveyor at the lower end. A cut-out device 69 for forcibly cutting out organic fertilizer is arranged in the opening as shown in Fig. 7 so as not to be clogged with granular organic fertilizer. That is, the cut-out device 69 includes a propeller-shaped cut-out blade 69 a, a pivot shaft 69 b rotatably supporting the cut-out blade 69 a, and a pivot shaft 69 b. The shaft 69b is connected to and driven by the drive shaft of a subsequent conveyor 52 or 62 via a drive chain 69c, respectively.

Thus, the organic waste treatment method configured as described above can be used to implement an organic waste treatment method as described below.

That is, before a vehicle (track) loaded with organic waste such as sewage sludge arrives, the sludge carry-in yard 9 has an amount equal to the amount of organic waste loaded on the truck. (Equivalent in weight ratio) A carbonaceous substrate consisting of sawdust, straw, rice husk, branches, bark, wood chip, bark, duct, etc., or a mixture selected from these. Lay it flat. This carbonaceous substrate contains approximately 100 g of active mixed microorganisms (obtained at Fukunaga Microbial Research Institute (located at 2705, Funatsu-cho, Himeji-shi, Hyogo)) per 1 t of material to be treated. Percentage And add it. An example of analysis of the composition of the active mixed microorganism is described at the end of this section of the present specification.

Then, the vehicle equipped with the organic waste discharges the organic waste while spreading on the carbonaceous substrate.

Next, using a packet of a shovel loader or the like (which may be another device such as a crane bucket), the carbonaceous substrate, the organic waste, and the active mixed microorganisms are generally used. Mix to ensure evenness, then apply water to adjust the total humidity to approximately 65-75% (preferably 70%). .

Then, the pretreated material is put into fermentation lane 1 having an empty base end using a bucket such as the above-mentioned shovel loader. Then, when the mixture is fed into the fermentation lane 1, fresh air is mixed from the bottom side by an air ration facility, and the carbonaceous substrate, the organic waste, and the active mixed microorganisms are mixed. Is supplied in the product (called the material to be treated).

In the case of this embodiment, the switching device 上述 described above is used once a day.

The cutting process is performed by remote control of an operator so that the air from the bottom to the surface of the fermentation lane 1 is turned back so that it comes into contact with fresh air.

When the object to be treated is turned back in this way, the switching device 搬送 conveys the object to the front end side of the fermentation lane 1 by about 1 to 2 m. Then, when the above-mentioned active mixed microorganisms perform the fermentation action in the fermentation lane 1, the temperature inside the fermentation lane 1 is about 75 to 85. That is, it is required to set the internal temperature to the above-mentioned temperature during the fermentation treatment of the object to be processed. In addition, since the water evaporates due to the heat of the 1% fermentation action, the water must be maintained so that the humidity of the object to be treated is always 65 to 75% (preferably 70%) Water is adjusted by spraying. This moisture adjustment may be performed by spraying by disposing the spray nozzle, or the spray nozzle and the water tank (or the water source and the hose) may be provided to the switching device M described above. May be connected and supplied via piping such as a pipe).

Then, as described above, after the air rate, the water content adjustment, and the switching process, the fermentation process is performed in this fermentation lane 1 for about 2 months. During this time, the active mixed microorganisms decompose organic waste and carbonaceous substrates into useful organic matter.

Then, in the case of this embodiment, the object to be treated is advanced by the above-mentioned switching device M over approximately two months to the tip of the fermentation lane 1 having a length of 45 m as described above.

The organic waste which itself had a bad smell does not emit a bad smell in the fermentation lane 1 because the active mixed microorganism is organically decomposed in the fermentation lane 1.

Then, the processed object sent to the front end of the fermentation lane 1 and having been subjected to the fermentation treatment is conveyed to the ripening yard 3 by a shovel loader. 665% (preferably about 60%), and the shovel loader switches the machine once every 10 to 20 days. Is done.

Then, in this ripening yard 3, by ripening, it becomes an organic fertilizer that can be used for agriculture or horticulture.

Then, the to-be-processed material generated in the organic fertilizer is transported to the adjacent stock yard 4 by a transport device such as a shovel loader and stored there. In this regard, in the organic waste treatment equipment, the sieving apparatus 5 described above is used to provide a proper method for horticulture or agriculture so that appropriate performance can be exhibited. Process (granularity). That is, the organic fertilizer stored in the stock yard 4 is fed into the sifter 51 of the sieving apparatus 5 by a shovel loader. By 3, it is supplied to the sieve cage 54, processed to a desired particle size, and falls downward.

Next, when the dropped organic fertilizer is put into the hopper 61 of the bagging device 6 by a shovel loader, the organic fertilizer is conveyed to the supply port of the packaging device 64 by the belt conveyors 62, 63. It is packed here. Then, the bagged organic fertilizer is transported to a standby station 66 by a belt conveyor 64 and a slat conveyor 65, and then by an articulated robot 67. , Are piled up on adjacent pallets and are waiting for shipment.

In this regard, instead of the switching device M of the above-described embodiment, a switching device that does not require the traverser 14, that is, a switching device that can traverse between the fermentation lanes 1 is provided. The work line from the sludge carry-in yard 9 at the base end of the fermentation lane 1 to the fermentation lane 1 does not interfere with the traveling trajectory of the traverser 14. At the same time, workability and work safety can be improved. Also, it is possible to promote unmanned operation of switching work. That is, with reference to FIGS. 8 to 10, in this embodiment, the running rail 2 is the rightmost wall 1 a of the plurality of rows of the fermentation lanes 1. At the upper end of the left wall 1a on the left end, one pair is arranged on each side.

A self-propelled traveling girder device 100 is provided between the wall surfaces la, and runs along the traveling rail 2 on the wall surface 1a in the longitudinal direction of the fermentation lane 1 (see arrow X in FIG. 8). It is arranged so that it can run along.

The traveling girder device 100 is provided with a traversing rail in a direction crossing each fermentation lane 1, that is, in a direction orthogonal to the traveling rail 2. A turning device M is arranged on the traversing rail 101 so as to be able to traverse freely. That is, this switching device M crosses each of the fermentation lanes 1 on the traversing rail 101 by the traversing electric motor 130 provided in the switching device M. It is configured to run in the direction. The switching device Μ itself is basically the same as that shown in FIGS. 3 and 4 except that the electric motor 30 is replaced by the electric motor 130. Those with a configuration are used. The same configurations as in Figs. 3 and 4 are given the same numbers in Figs. 8 to 10. Although not shown, the traveling girder device 100 is provided with an electric drive device for traveling on the traveling rail 2 at a location where the traversing operation of the switching device Μ is not obstructed. .

The traveling girder device 100 and the switching device Μ configured as described above can be automatically operated as follows by connecting to a control device (not shown). . More specifically, as shown in the flow chart of FIG. 11, when the start button is depressed, the control device operates, and first, the traveling girder device 100 and the switching device output force. Check if you are in the initial position. In other words, it is checked whether or not the traveling girder device 100 is located at the end of the first fermentation lane 1 and the turning device 位置 is located at the right end (or the left end) of the traveling girder device 100. I do.

Then, when the traveling girder device 100 and the switching device Μ are located in the initial position, the electric motor 22 of the switching device 作動 is operated, and the tip of the arm member 21 is connected to the fermentation tray. And drop it near the floor of ン 1. Next, the electric motor 26 is actuated, the slit plate 24 rotates between the upper and lower sprockets of the arm member 21, and the traveling girder device 10 (not shown) is rotated. The electric motor of the electric drive device of No. 0 operates, and the traveling girder device 100 starts traveling along the traveling rail 2. And the control equipment When the traveling girder device 100 travels to the base end of the fermentation lane 1, the traveling girder device 100 detects that the traveling girder device 100 has stopped traveling and stops the traveling of the traveling girder device 100. 6 is stopped, and then 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 actuated to traverse the turning device 横 in the lateral direction to move the turning device に onto the next fermentation lane 1 and the traveling girder device 100 is operated. To the end of fermentation lane 1.

Then, the same switching operation as described above is performed in this fermentation lane 1, and when the switching operation in this fermentation lane 1 is completed, the process moves to the next fermentation lane 1 and proceeds in the same manner. Perform the work of. Then, the above operation is repeated, and finally, when the turning operation of all the fermentation lanes 1 is completed, the traveling girder device 100 and the turning device Μ are in the first position. Return to the standby position (if another standby position has been set) and wait for the next switching operation.

Then, together with the traveling girder device 100 and the switching device Μ, connect the above-mentioned air rate equipment and watering device to a control device, and furthermore, install a humidity sensor and an oxygen sensor in the fermentation lane 1. By arranging the detection sensors and connecting them to the control device, in addition to the automatic operation of the traveling girder device 100 and the switching device 上述 described above, when the humidity sensor detects a shortage of moisture, Turn on the water sprinkler and spray water to adjust the water content.If the accumulated inside is insufficient for oxygen, set the above air rate equipment to 〇 N to supply fresh air. If the system is configured to perform oxygen adjustment, a fully automated organic waste treatment facility can be achieved.

However, according to the above-described organic waste treatment method and equipment, when utilizing the organic fermentation decomposing action of the active mixed microorganism, the temperature conditions necessary for the fermentation are adjusted to the above-described depths as described above. To accumulate Therefore, no heat source is required to effectively use the heat generated during the fermentation. In other words, in terms of energy, if power is supplied for the air rate and even for switching back, organic waste, such as sewage sludge, which has conventionally been difficult to dispose of, and wood Chips produced by processing or by treating old wood can be converted to organic fertilizers necessary for growing plants.

In addition, when new substances are sequentially introduced into the fermentation lane whose base is vacant, continuous processing is performed such that organic fermentation decomposition products are sequentially generated from the end of the fermentation lane. Therefore, it is possible to process about 100 t of organic waste per month per fermentation lane.

[Bacterial isolation medium broth agar medium]

Meat extract 10 g

Peptone 10 g

Sodium chloride 5 g

Agar 20 g

Distilled water 1 0 0 0 ml

Medium pH 7.2

[Mold Separation Medium Malt Extract Agar Medium]

Malt extract 20 g

D — glucose 20 g

Peptone 1 g

Agar 20 g

Distilled water 1 0 0 0 ml [Media for actinomycetes isolation: sucrose · nitrate agar]

30 g sucrose

NaNO 3 2 g

MgSO4.7H2O 0.5 g

0.5 g of potassium chloride

FeSO4.7H2O 0.01 g

Agar 20 g

Distilled water 1 0 0 0 ml

Medium pH 70-7.3

[Yeast separation medium MY medium]

Peptone 5 g

Yeast extract 3 g

Malt extract 3 g

D — glucose 10 g

Distilled water 100 m, and colonies appearing in the petri dish by the serial dilution method were picked and used as test strains for identification.

Bacteria, molds, actinomycetes, and yeasts were identified according to the classification shown in Table 2.

table

Bacteria: Bergey's Manual of Determinative Bacteriolo y

(Eighth Edition, Ninth Edition)

Yeast: The yeasts a taxonomic study (Kreger-van Rij) Mold / actinomycetes: The Fungi IVA, The Fungi IVB, Fungi Illustrative Guide (upper) Fungal Illustrative Guide (lower), Classification and Identification of Microorganisms Table 3 below shows the major species of vegetation, actinomycetes and yeast.

Bacteria: Bacillus subtilis

Bacillus stearothermoDhilus Clostridium thermocellum Power: Aspergillus oryzae

Aspergillus niger

Aspergillus fumigatus

Chaetomium thermophile

Humicola lanuginosa

Rhizopus j avanicus yeast: Candida glabr ata

Debaryomyces hansenn

Hansenula anomala

Pichia membranaefaciens

Rhodotor ula glutinis

Saccharomvces cere visiae Actinobifida dichotom Streptomyces grise us

Stre tomyce s thermophilus

Thermoactinomyces vulgaris Thermomonospora glaucus

[Possibility of industrial use]

According to the method and equipment for treating organic waste according to the present invention, sewage sludge or food waste that is difficult to treat, as well as chips and the like generated by a timber processing plant or old wood treatment, can be externally processed. No organic odors and waste liquids are discharged at all, and in a short period of 4 months as a whole, and without the need for a heat source, it undergoes enzymatic decomposition to produce organic fertilizers useful for agriculture and horticulture. You can do what you want. In other words, it is difficult to dispose, and each local government or manufacturer must incinerate organic waste such as sewage sludge or food waste, which is a source of concern, with the manufacturer or old wood processor. By adding a carbonaceous base material that has not been used, and by adding an active mixed microorganism, energy conservation is achieved, using a relatively narrow space, and in a short time, extremely rationally. Organic fertilizers useful for horticulture and so on can be produced.

Also, according to the above-mentioned organic waste treatment equipment, the organic waste treatment method can be completely automated, and very few administrators can produce organic fertilizers useful for agriculture and horticulture, etc. can do.

Claims

The scope of the claims

1. An organic waste treatment method for treating organic waste such as sewage sludge using microorganisms.

An organic waste treatment method comprising the following steps (a) to (f).

(a) A carbonaceous base material consisting of sawdust, straw, rice husk, technical wood, bark, wood chip, bark, duct, etc., or a mixture selected from these, is added to the above-mentioned organic waste. At the same time, the amount of active mixed microorganisms that have an enzyme-degrading effect on organic matter is approximately 100 g per 100% of organic waste such as sewage treatment sludge combined with carbonaceous materials. To add,

(b) Adjust the water content as needed so that the humidity of about 70% is obtained after the treatment in (a) above.

(c) Next, the finished product of (b) is transferred to a fermentation lane with a depth of about 2 to 3 m so that the internal temperature during fermentation is approximately 65 to 85. At the same time as the deposition, an air rate is applied to the deposited interior until the enzymatic treatment of (e) is completed so that sufficient oxygen is supplied to the deposited interior.

(d) The moisture accumulated in the fermentation lane is adjusted to keep the humidity at about 70%, and at a rate of once or twice a day. Repeat turning so that δ is sufficiently stirred from the bottom to the surface of the fermentation lane.

(e) Complete the above step (d) for about 2 months to complete the fermentation.

(f) When the fermentation is completed, remove the fermentation from the fermentation lane, and in an aging jar, keep the humidity at 50% to 65% for approximately 2 months. While maintaining the degree, ripening is performed once every 10 to 20 days while applying the cutting operation. The reversing operation in the fermentation lane is performed by a reversing device, and the reversing operation is performed by a stirring operation that involves advancing to the front end of the fermentation lane. The method for treating organic waste according to claim 1, wherein: The step (a) is a step of laying down the carbonaceous base material in an amount substantially equal to that of the organic waste, adding the organic waste to the base so as to be substantially even, and adding the active mixed microorganism to them. The method for treating organic waste according to claim 1, wherein the method is carried out in the following manner. In the ripening yard of the above (f), the fermentation is completed in a piled state, and the ripening is performed once every 10 to 20 days while turning over. The method for treating organic waste according to any one of claims 1 to 3, wherein: An organic waste treatment facility that treats organic waste such as sewage sludge using microorganisms.

This equipment comprises a fermentation lane composed of a pair of left and right walls extending in the longitudinal direction, a traveling rail disposed along the longitudinal direction above the pair of left and right walls of the fermentation lane, An air-only facility that blows air from the floor and / or wall surface of the fermentation lane, and agitating from the bottom to the surface of the fermentation lane while traveling on the traveling rail. A switching device for feeding the leading end of the lane, a sludge carrying yard provided at or near the base end of the fermentation lane, and a tip end of the fermentation lane. It is characterized by comprising an aging yard provided at or near the end, and a sludge carrying yard, a fermentation lane, and a watering device provided in the aging yard. Organic waste treatment equipment.

(A) at least one pair of lower sprockets provided on both sides of the fermentation lane near the bottom of the fermentation lane; and both sides of the lane near the upper end of the fermentation lane. An upper end sprocket provided corresponding to the lower end sprocket, a pair of lower end sprockets, and a conveyed belt-like body provided endlessly between the corresponding upper end sprockets. A switching mechanism; (b) a frame supporting the switching mechanism; (c) wheels arranged below the frame and traveling on the traveling rail; 6. The organic waste treatment facility according to claim 5, comprising: a driving device that drives in the longitudinal direction of the yeast lane. The fermentation lanes are provided in a plurality of rows, run at a base end of each of the lanes in a direction perpendicular to these lanes, and have the same width as the width of the running rail as the running rail. The organic waste treatment equipment according to claim 5 or 6, further comprising a traverser device provided in the same direction and having a mounting portion for mounting the switching device. An organic waste treatment facility that treats organic waste such as sewage sludge using microorganisms.

This equipment

A plurality of rows of 1% fermentation lanes each comprising a pair of left and right walls extending in the longitudinal direction;

The upper part of the wall at the right and left ends of this multi-row fermentation lane Traveling rails arranged along the

A traveling girder device having a traversing rail which runs on the traveling rail and extends in a direction orthogonal to the traveling rail;

An air-rate facility for blowing air from the floor and / or wall of the fermentation lane;

The moving girder device is arranged so as to be able to traverse freely on the traversing rail of the moving girder device, and is advanced to the tip of the fermentation lane while sufficiently stirring from the bottom to the surface of the fermentation lane. The piles in the fermentation lane are turned back, and when the turning of one fermentation lane is completed, the fermentation lane traverses to the fermentation lane on the side and the same turning back is performed in the fermentation lane there A switching device for performing

A sludge carrying yard provided at or near the base end of the fermentation lane, an aged yard provided at or near the front end of the fermentation lane; Organic waste treatment equipment characterized by having a sprinkler installed in the loading yard, fermentation lane, and aging yard. The switching device comprises: (a) a lower end sprocket provided at least in pairs on both sides of the lane near the bottom of the fermentation lane; and a lane near the upper end of the fermentation lane. An upper end sprocket provided on both sides corresponding to the lower end sprocket, a pair of lower end sprockets, and a conveyed belt-like body provided endlessly between the corresponding upper end sprockets; (B) a frame supporting the above-mentioned switching mechanism, and (c) a tip of the above-mentioned frame and the above-mentioned switching mechanism from near the floor surface of the fermentation lane to the above-mentioned wall surface. 9. The organic waste treatment equipment according to claim 8, further comprising a lifting device for raising and lowering to a position above the organic waste.

0. The organic waste treatment equipment has a control device capable of automatically operating the traveling girder device and the switching device, and the control device controls the switching device on the traversing rail to just above the fermentation lane. At that position, operating the lifting device so that the tip of the switching device is located near the floor of the fermentation lane, and then moving the traveling girder device on the traveling rail. Turn over from end to end of the fermentation lane, and then operate the lifting device so that the tip of the turning device is positioned above the wall, and then turn over. The device is moved on the traverse rail to just above the fermentation lane on the side, and at that position, the lifting device is operated so that the tip of the turning device is positioned near the floor of the fermentation lane. Then, the traveling girder device is moved on the traveling rail, 10. The method according to claim 9, wherein the series of operations for performing the switching operation from one end of the lane to the other end is automatically performed until the switching operation for all the fermentation lanes is completed. Organic waste treatment equipment. 1. The organic waste treatment equipment is a control device capable of automatically operating the air rate equipment and the water sprinkler, an oxygen detection sensor for detecting the amount of oxygen in the fermentation lane, and the fermentation lane. A humidity sensor for detecting the humidity in the air, the control device operates the sprinkler for a predetermined time when the humidity sensor becomes lower than a predetermined humidity, and the oxygen detection sensor detects a predetermined oxygen content value. The organic waste treatment equipment according to claim 9 or 10, wherein an automatic control is performed so as to operate the air distribution equipment when the temperature becomes lower.

2. At the tip of the ripening yard, a sieving device for forming organic fertilizer produced by aging to a predetermined roughness and a bagging device at the tip of the sieving device are provided. Claims 5 to 11 Organic waste treatment facilities as described in any one of the above items