JP2007283303A - Method for treating organic waste and facility therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for treating organic waste by which the organic waste can be made completely odorless in any area including a cold district and facilities for performing the method. <P>SOLUTION: In the method for treating the organic waste utilizing the fermenting and decomposing action of a microorganism, a series of fermentation processes are carried out in a partitioned fermentation facility A in order to prevent the outside emission of the malodorous air in the fermentation facility A for the fermentation processes. The malodorous air in the facility A is drawn to a separately installed deodorization facility B and introduced into a liquid tank B1 in the facility B to make the malodorous material in the air absorbed by the liquid. Then the malodorous air recovered from the upper part of the liquid tank B1 is introduced into a carbonaceous substrate being fermented in a deodorizing fermentation lane 201 provided in a deodorization space, deodorized by fermentation, and next discharged into the outside air. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention refers to sewage treatment sludge containing organic matter, food sludge such as okara, or food waste such as residue (residue rice) (collectively referred to as “organic waste such as sewage treatment sludge” in this specification). Is an organic waste treatment method for treating organic fertilizers useful for horticulture and agriculture, and an improved invention for equipment for carrying out the method.

  In recent years, sewage treatment facilities have been completed nationwide, and each local government is struggling to treat sewage treatment sludge generated from the facilities. Also, the treatment of food waste such as okara produced during tofu production or starch processing during food processing, or food waste such as residue generated in restaurants, etc. is the same as in the case of the above sewage treatment sludge. The current situation is that each manufacturer or local government is struggling.

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

In view of such a current situation, the present applicant is concerned with an organic waste treatment method for changing the above-mentioned sewage treatment sludge and food waste, etc., to an organic fertilizer useful for agriculture or horticulture, and equipment for carrying out the method. Applications have been filed (see Patent Document 1 and Patent Document 2). This organic waste treatment method uses an active mixed microorganism that effectively fermentates and decomposes organic waste (obtained at Fukunaga Microbiology Research Institute, Inc. (location: 2705 Funatsu-cho, Himeji City, Hyogo Prefecture)). Except for cold areas in Tohoku, Hokkaido, etc., it does not require external heat energy and emits almost all of the so-called “septic odor” except for the odor (odor) peculiar to organic fertilizers. There is no breakthrough.
JP-A-9-346169 International Publication Number WO99 / 03084

  However, when equipment for implementing such a treatment method is arranged in a residential area, even the slight odor (odor) peculiar to the fertilizer may become a problem due to individual differences and remains as it is. However, there were limits to installation in residential areas. However, on the other hand, residential areas are a source of organic waste, and the treatment in the suburbs is not efficient, and the opposition movements of residents around the suburbs are also active, presenting complicated problems.

  By the way, since the said processing method and equipment are fermentation decomposition processes by microorganisms, when any one of fermentation conditions is inhibited, specifically, "temperature conditions", "moisture" that are highly likely in cold regions. If conditions such as “adjustment” or “poor turnover” are hindered, a bad odor will be generated.

  The present invention has been made in view of the present situation, and an object of the present invention is to provide a method for treating organic waste that can be completely brominated in all regions including cold regions, and equipment for carrying out the method. And

The organic waste processing method according to the first invention comprises (a). Add organic materials such as sewage treatment sludge to a carbonaceous substrate made of sawdust, straw, rice husk, branch tree, bark, wood chip, bark, duct, etc. or a mixture selected from these, and ferment organic matter. Adding an active mixed microorganism having a decomposing action in a predetermined ratio; (b). Adjusting the water so that the processed product of (a) has a humidity suitable for the fermentation decomposition action of the active mixed microorganism, (c). Next, what is completed in the process (b) is deposited in a fermentation lane at a depth where the internal temperature during fermentation is approximately 65 to 85 ° C., and sufficient oxygen is supplied to the deposited interior. Aeration is performed in the interior until the fermentation treatment of (e) is completed, (d). While adjusting the moisture so that the thing that is deposited in the fermentation lane and being fermented maintains the humidity, the thing that is deposited in the fermentation lane and being fermented is sufficiently stirred from the bottom of the fermentation lane to the surface. (E). When the fermentation is completed, the fermented lane is taken out of the fermentation lane, and further aged in the aging yard while giving a turnover operation while maintaining a humidity of about 50 to 65%, (a) to (e In the organic waste treatment method having a series of steps)
The turning-over operation is performed by a combined operation having a feeding operation and an operation in a different direction in order to prevent solidification of the organic waste being processed in the fermentation lane.

  Thus, according to this organic waste treatment method, the turnover operation is performed by a combined operation of a feeding operation and a different direction so as to prevent solidification in the fermentation lane, and “temperature condition”, By not satisfying the conditions such as “moisture adjustment” or “poor turnover”, abnormal fermentation can be prevented in advance, and a fermentation process such as sewage sludge or an aging process can be performed smoothly. For this reason, generation | occurrence | production of malodor can be prevented as much as possible.

  Further, in the organic waste processing method, when the operation in the different directions of the combined operation is performed by changing the feeding operation in a different direction during the feeding operation, a new device is added. Therefore, the combined operation can be effectively performed.

Moreover, the processing apparatus of the organic waste concerning this 2nd invention is arrange | positioned along a longitudinal direction in the fermentation lane comprised by a pair of left-right wall surface extended in a longitudinal direction, and a pair of left-right wall surface of this fermentation lane. Traveling aisle, aeration equipment for blowing air from the floor and / or wall surface of the fermentation lane, and the tip of the lane while sufficiently stirring from the bottom to the surface of the fermentation lane while traveling on the traveling rail A reversing device that is fed forward, a ripening 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,
The reversing device has a pair of left and right arm members whose upper end is located near the upper end of the partition of the fermentation lane and whose lower end is movable up and down from the bottom of the fermentation lane to the upper position, and the upper ends of the pair of left and right arm members. A pair of left and right chains wound between the shaft of the upper sprocket arranged and the shaft of the lower sprocket arranged at the lower end, and a plurality of slat conveyors passed between the pair of left and right chains Organic waste such as sewage treatment sludge, comprising a slat plate, a scraper plate erected from the slat plate, a driving device for driving the pair of left and right chains, and an elevating means for raising and lowering the pair of left and right arm members In organic waste treatment equipment that uses microorganisms to treat
When the turning device is turned back, the lower end of the arm member is lowered and the arm member is inclined obliquely, and the scraper is rotated between the upper and lower sprockets by the drive device while the fermentation lane is moved. While traveling,
The arm member is configured to move up and down at an appropriate timing during the running.

  Thus, according to this organic waste treatment facility, the organic waste treatment method according to the first aspect of the present invention can be implemented at low cost.

  Moreover, in the organic waste treatment apparatus, when a variable capacity heater that can be changed according to the outside air temperature is attached to the aeration equipment, even in a cold region such as Hokkaido, all year round, It is a facility that can maintain a normal fermentation decomposition action and can therefore actively prevent the generation of malodor.

  In addition, the organic waste treatment method according to another invention includes: (a) organic waste such as sewage treatment sludge, roughly equivalent amount of sawdust, straw, rice husk, branch tree, bark, wood chip, bark, Adding a carbonaceous substrate made of a duct or the like or a mixture selected from these, and adding an active mixed microorganism having an fermentation decomposition action of organic matter at a predetermined ratio, (b). The treatment of (a) above (C). Next, after the treatment of (b) is completed, the fermentation lane is subjected to fermentation at the time of fermentation. The inner temperature is deposited at a depth of approximately 65 to 85 ° C., and aeration is performed inside the deposited inside until sufficient oxygen is supplied until the fermentation treatment in (e) is completed, (d) In the above fermentation lane In addition, the water is adjusted so that the one being fermented maintains the above humidity, and the turnover operation is performed so that the mixture is sufficiently stirred from the bottom of the fermentation lane to the surface at a rate of about 1 to 2 times a day. e) The above step (d) is carried out for about 2 months when the fermentation is completed, and (f). When the fermentation is completed, it is taken out from the fermentation lane and further dried for about 2 months in the aging yard. In the organic waste treatment method having a series of steps (a) to (f) described above, wherein the maturation is performed while giving a turnover operation at a rate of once every 10 to 20 days while maintaining about ~ 65%, The odorous air in the fermentation treatment space is performed in a state in which the odorous air in the fermentation treatment space in which the series of treatment steps a) to (f) are performed is separated so that the odorous air does not flow outside. Is introduced into a separate deodorizing treatment 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 liquid The odorous air collected from above the tank is introduced into the carbonaceous substrate during fermentation in the deodorization fermentation lane provided in the deodorization treatment space, where it is deodorized by fermentation, and then the outside air side You may comprise so that it may discharge | emit.

According to such an organic waste treatment method, all of the odorous air generated in the fermentation treatment step such as sewage sludge or the aging step is guided to the deodorization treatment space, and in this deodorization treatment space, first in the liquid tank. A part of the odorous substance in the odorous air is recovered, and the remaining odorous substance is also decomposed by fermentation in the carbon base material by the active mixed microorganism, and the odorous air is almost removed from the odorous air (air) Will be released. Moreover, if the liquid in the liquid tank is used to adjust the water content for smooth fermentation, odorous substances (organic substances) contained in this liquid are also decomposed by fermentation. Is also unnecessary. In addition, since the odorous air is heated to a predetermined temperature in the fermentation treatment space, when it is installed in a cold region, the odorous air is supplied to the carbon base material in the deodorization fermentation lane. When used in the process, it is not necessary to heat, so 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 microorganisms.
Therefore, according to the organic waste processing method according to the present invention, since the slight odor is also released to the outside air in the state removed as described above, the organic waste processing facility is installed in a city area such as a residential area. In this case, the organic waste can be treated without any problem. Moreover, according to this organic waste processing method and equipment, organic waste processing can be carried out without emitting any odor to the outside even in extremely cold regions.

  Moreover, in the said organic waste processing method, the liquid in the said liquid tank should just be water, Therefore It can obtain easily and cheaply.

  Further, in the organic waste treatment method, when the liquid in the liquid tank is used for moisture adjustment of the deodorization fermentation lane in the deodorization treatment space, water containing an odor substance in the deodorization treatment space is used. In addition, since the odorous substance is an organic substance, the fermenting action can be promoted together with moisture adjustment.

  Moreover, in the said organic waste processing method, when the said aeration is comprised so that it may adjust and supply by heating external temperature so that the internal temperature deposited in the fermentation lane may become about 65-85 degreeC. Even in extremely cold regions such as Hokkaido, normal fermentation decomposition action can be maintained throughout the year, and therefore generation of malodor can be actively prevented.

  Moreover, as an organic waste treatment facility according to another invention, a fermentation lane constituted by a pair of left and right wall surfaces extending in the longitudinal direction, and traveling disposed along the longitudinal direction on the pair of left and right wall surfaces of the fermentation lane The rail, the aeration equipment that blows air from the floor and / or wall surface of the fermentation lane, and the advancing toward the tip of the lane while sufficiently agitating from the bottom to the surface of the fermentation lane while traveling on the traveling rail A reversing device, a ripening yard provided at or near the tip of the fermentation lane, and a fermentation treatment facility equipped with a watering device provided in the fermentation lane and the ripening yard, sewage treatment sludge, etc. In an organic waste treatment facility that treats organic waste using microorganisms, the periphery of the fermentation treatment facility is covered with an outer wall and a ceiling. A gas collecting device for collecting odorous air in the fermentation treatment facility is disposed in or near the ceiling portion, and the outside wall is separated from the fermentation treatment facility on the outside air side. A deodorizing fermentation lane that contains a liquid tank and a carbonaceous base material to which moisture has been adjusted by adding active mixed microorganisms and has a fermenting effect is placed in the deodorizing treatment facility. The air collecting device is connected to the liquid tank in the deodorizing treatment equipment through the exhaust passage, and the air collecting means is provided above the liquid tank so as to rise from the liquid tank. Is introduced into the fermentation lane for deodorization in the deodorization treatment equipment through the air supply passage, and passes through the carbonaceous substrate in the fermentation in the fermentation lane for deodorization and in odorous air. It is also possible to configure so that the odor component of most of the odor component is removed to the outside. The method of treating organic waste according to the invention serve as a preferred configuration in the practice of.

  Moreover, in the said organic waste processing equipment, it will become a preferable structure if the spreading | diffusion apparatus which spreads the water in the said liquid tank in the fermentation lane for deodorizing of a deodorizing processing equipment is provided.

  According to the organic waste processing method and the organic waste processing facility according to the present invention, it is possible to provide an organic waste processing method and a processing facility that do not generate malodor as described above.

  And according to this organic waste treatment method and equipment, sewage treatment sludge or food waste that is difficult to treat, chips generated by timber processing plant or old wood treatment, etc. are completely bad odor and waste liquid. Organic fertilizers useful for agriculture and horticulture can be produced by fermenting and decomposing in a short period of 4 months as a whole without exhausting all of the above. In other words, it is difficult to dispose of waste, and the carbonaceous bases that have only been incinerated by manufacturers or old wood treatment companies into organic waste such as sewage treatment sludge or food waste, which is a problem for local governments and manufacturers. By adding active materials and microorganisms, organic fertilizers that are useful for agriculture and horticulture are produced in a short time and in a relatively short space using a relatively small space. be able to.

  Moreover, according to the organic waste treatment facility, the organic waste treatment method can be fully automated, and an organic fertilizer useful for agriculture, horticulture, etc. can be produced very reasonably with only a few managers. be able to.

Example 1
Hereinafter, an organic waste processing method and equipment for carrying out the method according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing the overall arrangement configuration of the organic waste treatment facility, FIG. 2 is an enlarged view of the configuration of the deodorization treatment facility shown in FIG. 1, and (a) is not a plane, (b) Fig. 3 is a cross-sectional view of the fermentation lane, Fig. 4 is a side view showing the configuration of the turning device, and Fig. 5 is a view taken along the line II-II of Fig. 4. FIG. 6 is a perspective view showing a configuration of a sieving device 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 bagging device and a palletizer.

  In FIG. 1, A is a fermentation treatment facility whose inside is a fermentation treatment space, B is a deodorization treatment facility which is a deodorization treatment space, and in this embodiment, the deodorization treatment facility B is physically located at a different position. It consists of a water tank (liquid tank) B1 arranged and other devices B2 including a deodorizing fermentation lane 201 and a deodorizing device 202 having a box-shaped cross section. As shown in FIG. 1, a duct 210A for collecting air is disposed on the ceiling surface of the building of the fermentation treatment facility A, and a suction device 210B for collecting air is disposed at the end of the duct 210A. In other words, in this embodiment, the air collecting device 210 includes the air collecting duct 210A and the air collecting suction device 210B. The air collecting suction device 210B is connected to a pressurizing compressor 211 that pressurizes and supplies air to the water tank B1 via a duct 212, and an air supply pipe 213 is connected to the pressurizing compressor 211. The tip of the pipe 213 is extended, and is connected to an air supply tool 214 disposed at the bottom of the water tank B1, as shown in an enlarged view in FIG. The air supply tool 214 is constituted by a pipe having a large number of holes and branched in a branch shape as a whole. However, the air supply tool 214 may be in the form of a porous plate, and preferably has a size having an area substantially equal to the bottom surface of the water tank B1. As shown in FIG. 2, the water tank B1 has a sealed space as a whole, the ceiling has a reverse funnel shape, and one end of an air feeding pipe 215 opens at the uppermost end of the reverse funnel shape. The tip of the pipe 215 is connected to an aeration pipe 216 disposed under the floor of the deodorizing fermentation lane 201 provided in another adjacent building. In addition to the pipe 216, a pipe (not shown) for supplying fresh air rich in oxygen may be arranged to introduce outside air. If there is a blower that does not, and heating is required, a heater whose capacity is variable according to the outside air temperature is attached. And in the building in which the said deodorizing fermentation lane 201 is arrange | positioned, the deodorizing apparatus 217 which the inlet port opened to this building inside part is arrange | positioned. Various known devices are conceivable as the deodorizing device 217, for example, a device using activated carbon as a filter, a device decomposing with ozone, or a deodorizing device using ultraviolet light and a photocatalyst. By the way, the base end of the water supply pipe 218 is opened at the bottom of the water tank B1, and the front end of the water supply pipe 218 is connected to a watering device 219 provided above the deodorizing fermentation lane 201. . The watering device 219 may be, for example, a pipe-shaped device having a large number of holes for watering a field or the like. Further, the water tank B1 is configured to be automatically supplied with fresh water such as tap water or well water when the water decreases. Moreover, the rails for driving | running | working (refer FIGS. 3-5) are arrange | positioned at the wall surface 201a of the both sides of the said fermentation lane 201 for deodorization, The fermentation processing equipment A which shows on this rail in FIG. 4, FIG. The same turnover device M as that in the fermentation lane 1 runs, and the same turnover operation as in the fermentation treatment facility A is performed. In the case of this deodorizing fermentation lane 201, the air supplied to the carbonaceous substrate during fermentation is the point where odorous air from the fermentation treatment equipment A is used, and the water to be sprinkled is the water tank B1. It differs in that water supplied from is used.

  Next, the fermentation treatment facility A will be described. In this fermentation treatment facility A, 10 rows (lanes) of fermentation lanes 1 having a length of 45 m are arranged. As shown in FIG. 3, the fermentation lane 1 has the same configuration as the fermentation lane for deodorization 201 except for the length. That is, the wall 1a is formed on both sides, and the cross section has a box shape. In addition, the width of the fermentation lane 1, that is, the effective width between the wall surfaces 1a on both sides is about 3 m and the effective depth is about 2 m in this embodiment. As shown in an enlarged view in FIG. 3, the floor 1b of the fermentation lane 1 is flat, and the floor 1b has a groove extending across each fermentation lane 1 as shown in FIG. 1d is formed, and a so-called “vinyl chloride pipe” 10 made of 100φ vinyl chloride is embedded in this groove, as shown in an enlarged view in FIG. A plurality of blowout holes are formed on the surface of the “PVC pipe”, and the outside air is pumped from the blower 11 provided at the base end portion to form an aeration facility. In this embodiment, air pressurized to about 0.5 atm is supplied. The air blower 11 has a built-in variable capacity heater (not shown) and is configured to blow air at a predetermined temperature corresponding to the outside air temperature. Although not shown, the above-mentioned “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 air is blown out from both sides of the fermentation lane. Such a configuration may be adopted. Further, a traveling rail 2 is disposed along the fermentation lane 1 at the upper end of the wall surface 1a. On the traveling rail 2, a turning device M shown in FIGS. 4 and 5 is disposed so as to travel. ing. As shown in FIG. 1, in this switching device M, a traveling rail 13 is embedded in the base end portion of the fermentation lane 1 so as to be orthogonal to the lane 1 so that each fermentation lane 1 can selectively travel. The electric self-propelled traverser 14 can be transported to the fermentation lanes 1 on the traveling rails 13. That is, at the upper end of the traverser 14, a rail 14a is disposed at the same width and height so as to coincide with the traveling rail 2, and the turning device M is temporarily mounted on the rail 14a. The reversing device M is conveyed (transversely) from one fermentation lane 1 to another fermentation lane 1 accommodated in parallel. By the way, as shown in FIGS. 4 and 5, the turning device M is paired on both sides of the frame 20 assembled in a box shape so that the arm member 21 can swing around the pivot shaft 21A. Is attached. A pair of sprockets are rotatably disposed at both ends (upper and lower ends) of each arm member 21, and the left and right chains 23 are rotatably disposed on the sprockets at both ends. It is installed. A narrow slat plate 24 is continuously arranged between the left and right chains 23 as if it is a transport belt of a slat conveyor, and a scraper plate 25 is erected on the surface of the slat plate 24. Has been. The sprocket shaft on the upper side of the arm member 21 is connected to the electric motor 26 disposed at the upper end of the frame 20 via the chain 27 and the sprocket, and the electric motor 26 is used as a transport belt of the slat conveyor. The slat plate 24 is configured to rotate between the upper and lower sprockets of the arm member 21. Further, in the middle of the arm member 21, one end of a chain 28a wound around a sprocket 28 on the electric motor 22 side is attached to the middle of the arm member 21, and the chain 28a is expanded and contracted by a timing operation during the traveling. As a result, the turning operation is performed in a state where the upper and lower sprockets are rotated in the inclined state as described above, and the arm member 21 ascending / descending operation is performed in a combined manner as orthogonal to the turning operation. It is configured to prevent the carbonaceous substrate during fermentation from trying to harden. In addition, the arm member 21 is configured to be raised and lowered to a desired position by the lifting and lowering operation of the arm member 21 so that the arm member 21 has a predetermined inclination angle while the vehicle is not traveling or during traveling. Further, traveling wheels 29 are disposed at the four corners of the lower end of the frame 20, and the wheels 29 on the front end side (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 turning device M can travel on the traveling rail 2. In this embodiment, the traveling speed of the switching device M is configured to be freely adjustable, but in general, the switching operation is performed at a traveling speed of about 1 m / min.

  By the way, the sludge carrying-in yard 9 formed over the whole fermentation lane 1 is formed in the proximal end part of the said fermentation lane 1, ie, the upper end part in FIG. This sludge carry-in yard 9 is connected to a road through which vehicles loaded with organic waste such as sewage treatment sludge can pass, and the floor is composed of a concrete plane. In this embodiment, the opening of the building for entering the vehicle 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 to It is configured not to leak odor air to the outside. Further, if necessary, the suction device for collecting air 210B is configured to have a high capacity so that the building is negatively pressured with respect to the outside air side so that the air in the building does not leak to the outside air side. May be. On the other hand, a partition 40 is formed at the tip of the fermentation lane 1, that is, a lower portion in FIG. 1, separated by about 10 m, and on one side of the partition 40, on the left side of the partition 40 in FIG. An aging yard 3 is arranged. In this embodiment, the aging yard 3 is formed on a flat ground surface at the ground level.

  Further, on the opposite side of the partition wall 40, that is, on the right side in FIG. 1, a stock yard 4 in which the matured organic fertilizer, that is, the produced organic fertilizer is temporarily stored, is formed.

  Then, adjacent to the stock yard 4, a sieving device 5 shown in FIG. 6 for generating the generated organic fertilizer to a desired roughness is disposed, and a belt extended from the bottom of the hopper 51. The organic fertilizer in the stock yard 4 is supplied to the sieve cage 54 having a metal mesh having a predetermined roughness around the periphery by the conveyors 52 and 53, and the organic fertilizer generated to a desired roughness falls below. It is configured to In this embodiment, a parallel shaft-shaped rotating shaft 55a is disposed above the sieve cage 54, and one end of a narrow rubber plate 55b is fixed to the rotating shaft 55a at an appropriate interval, and the tip thereof Is configured to strike the wire mesh portion in order to prevent clogging of the organic fertilizer in the wire mesh portion of the sieving cage 54.

  In FIG. 1, a bagging device 6 is provided below the sieving device 5 to automatically pack the organic fertilizer produced to a desired roughness into a plastic bag and palletize it on a pallet. It has been. As shown in an enlarged view in FIG. 7, this bagging device 6 is provided with a feed port (not shown) of a well-known vertical packaging device 64 by belt conveyors 62 and 63 extending from the bottom of the hopper 61. The organic fertilizer supplied to the standby station 66 is transported to the standby station 66 by the belt conveyor 69 (hidden below the belt conveyor 63) and the slat conveyor 65. Thus, a predetermined amount is stacked on an adjacent pallet 68 by an articulated robot 67 for palletizing.

  In addition, the hopper 51 and the hopper 61 have a large opening so that the upper portion can be charged from the bucket of the wheel loader, and the opening opened toward the subsequent conveyor at the lower end has a granular organic material. A cutting device 69 for forcibly cutting out organic fertilizer is disposed as shown in an enlarged view in FIG. In other words, 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 via the drive chain 69c. Alternatively, it is configured to be connected to and driven by 62 drive shafts.

  Thus, using the organic waste treatment facility configured as described above, the organic waste treatment method can be carried out as follows. That is, before a vehicle (truck) loaded with organic waste such as sewage treatment sludge arrives, it is equivalent to the amount of organic waste loaded on the truck in the sludge carrying-in yard 9 (equal in weight ratio). A carbonaceous substrate made of sawdust, firewood, rice husk, branch tree, bark, wood chip, bark, duct or the like or a mixture selected from these is laid in a substantially flat state. Under the present circumstances, the shutter of the opening into which the said track of the building of fermentation processing equipment A enters has been in the closed state. In addition, an active mixed microorganism (available at Fukunaga Microbial Research Institute, Inc. (located at 2705 Funatsu-cho, Himeji City, Hyogo Prefecture)) is added to the carbonaceous substrate at a rate of approximately 100 g with respect to 1 t of the object 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. And when the vehicle carrying the organic waste arrives, the shutter of the building of the fermentation treatment facility A is opened and the air curtain device is activated to block the opening from the outside air side. At this time, if the interior of the fermentation treatment facility A is set to a negative pressure compared to the outside air side, it is more completely prevented that odorous air leaks from the interior together with the blockage from the outside air by the air curtain. it can.

  Then, the truck that has entered the building discharges organic waste in a state of spreading on the carbonaceous substrate. Next, using a bucket of an excavator loader or the like (which may be another device such as a crane bucket), a carbonaceous substrate mixed with the above active mixed microorganisms is sprinkled thereon, and organic waste is disposed. The product is sandwiched, and then water is sprayed to adjust the moisture by spraying water so that the total humidity is about 65 to 75% (preferably 70%). And what was pre-processed in this way is thrown into the fermentation lane 1 where the base end part is vacant using buckets, such as the said shovel loader. And if it puts into the fermentation lane 1, fresh air will be in the aeration equipment from the bottom side in what the above-mentioned carbonaceous base material, organic waste, and active mixed microorganisms were agitated (referred to as an object to be treated). Supplied. At this time, when the outside air temperature is low enough to inhibit fermentation, such as 10 ° C. below freezing point, the heater built in the blower 11 is operated, for example, 5 to 10 ° C. Warm and supply. Therefore, even in cold regions such as Hokkaido, fermentation is smoothly performed in the fermentation lane 1. And in the case of this Example, once a day, by the remote operation of the worker, the above-described switching device M is brought into contact with fresh air and from the bottom of the fermentation lane 1 to the surface. The reversing process is performed by the above-described composite operation so that even a certain thing is reverted and the stiffening is prevented. In this way, when the workpiece is turned over, the turning device M conveys the workpiece to the front side of the fermentation lane 1 by about 1 to 2 m. And in the state in which the said active mixed microorganism has a fermentation effect in the fermentation lane 1, it is about 75-85 degreeC in the inside of this fermentation lane 1. That is, the internal temperature can also be increased by increasing the thickness of the object to be processed, and even if the internal temperature is set to the above temperature during the fermentation process by adjusting (setting) the thickness. Good. Moreover, since water | moisture content evaporates with the heat | fever of a fermentation effect | action, water is sprayed and water | moisture content adjustment is made so that the humidity of a to-be-processed object may always be 65 to 75% (desirably 70%). The moisture adjustment may be configured to spray by arranging a spray nozzle, or may be supplied to the switching device M by being connected to the spray nozzle and a water tank (or a water source and a hose pipe). ) May be provided. And as above-mentioned, aeration, a water | moisture content adjustment, and a turning-back process are performed, and it ferments in this fermentation lane 1 for about 2 months. During this time, the active mixed microorganisms decompose the organic waste and the carbonaceous substrate into useful organic matter. And in the case of this Example, a to-be-processed object is advanced by the said turning-over apparatus M over the front-end | tip of the fermentation lane 1 of 45m length mentioned above over about 2 months. In the fermentation lane 1 as well, the organic waste that itself produced a bad odor is completely decomposed by the organically decomposed microorganisms, and coupled with the deodorizing action of the carbonaceous substrate, it can be said that it is completely through the fermentation treatment step. It does not stink as much. And the to-be-processed object which the fermentation process was completed sent to the front-end | tip of the fermentation lane 1 is conveyed by the shovel loader to the ripening yard 3, In this ripening yard 3, about 50 to 65% (desirably 60% is desirable). The moisture adjustment is performed so as to achieve a degree), and the turn-back operation by the shovel loader is performed once every 10 to 20 days. And in this aging yard 3, it becomes an organic fertilizer which can be used for agriculture or gardening by aging. And the to-be-processed object produced | generated by the organic fertilizer in this way is conveyed by the conveying apparatuses, such as a shovel loader, to the adjacent stock yard 4, and is stored here. By the way, in this organic waste treatment facility, it is processed into a predetermined mesh (granularity) suitable for its use by the above-described sieving device 5 so that appropriate performance can be exhibited in horticulture or agriculture. That is, when the organic fertilizer stored in the stock yard 4 is put into the hopper 51 of the sieving device 5 by the shovel loader, it is supplied to the sieving cage 54 by the belt conveyors 52 and 53 and processed to a desired particle size. Fall down. Next, when this fallen organic fertilizer is thrown into the hopper 61 of the bagging device 6 by a shovel loader, it is transported to the supply port of the packaging device 64 by the belt conveyors 62 and 63 and packed therein. The packed organic fertilizer is transported to the standby station 66 by the belt conveyor 64 and the slat conveyor 65, and then stacked on the adjacent pallet by the articulated robot 67 for shipment. It will be in a waiting state.

  By the way, it replaces with the switching device M of the Example mentioned above, and the traverser 14 is unnecessary, that is, if the switching device is arranged so that each fermentation lane 1 can be traversed, the sludge carrying-in yard 9 in the proximal end portion of the fermentation lane 1 Since the work line from to the fermentation lane 1 does not interfere with the travel trajectory of the traverser 14, the degree of freedom of work is increased, workability is improved, and work safety can be improved. It is also possible to promote unmanned operation for turn-back work. That is, if it demonstrates based on FIGS. 9-11, in this Example, the traveling rails 2 are those of the rightmost wall surface 1a and the leftmost wall surface 1a of the leftmost end among the plurality of fermentation lanes 1. At the upper end, each one is arranged in pairs on the left and right. And between these wall surfaces 1a, the self-propelled traveling beam device 100 can travel along the longitudinal direction of the fermentation lane 1 (see arrow X in FIG. 9) on the traveling rail 2 on the wall surface 1a. It is arranged. And this traveling girder apparatus 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 turning device M is configured to travel on the transverse rail 101 in a direction crossing each fermentation lane 1 by a transverse electric motor 130 disposed in the turning device M. The switching device M itself is basically the same as that described in FIGS. 4 and 4 except that the electric motor 30 is replaced by the electric motor 130. Yes. 4 and 5, the same reference numerals are assigned to FIGS. 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 M is not disturbed. The traveling girder device 100 and the switching device M configured as described above can be automatically operated as follows by being connected 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 switching device M are positioned at the initial positions. That is, it is checked whether or not the traveling girder device 100 is located at the front end 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. When the traveling girder device 100 and the turning device M are located in the initial position, the electric motor 22 of the turning device M is actuated to lower the tip of the arm member 21 to the vicinity of the floor of the fermentation lane 1. Next, the electric motor 26 is operated to rotate the slat plate 24 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) is operated. The traveling girder apparatus 100 starts traveling along the traveling rail 2. 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, stops the electric motor 26, and then The electric motor 22 is actuated to lift the tip of the arm member 21 upward and level it. Then, the electric motor 130 is operated to move the turning device M in the horizontal direction to move the turning device M onto the next fermentation lane 1 and to return the traveling beam device 100 to the tip of the fermentation lane 1. And also in this fermentation lane 1, the same turnover operation is performed, and when the turnover operation in the fermentation lane 1 is completed, it moves to the next fermentation lane 1 and performs the same operation. When the above operation is repeated and finally the turnover operation of all the fermentation lanes 1 is completed, the traveling beam device 100 and the turnover device M are in the first position (if another stand-by position is set, the waiting position is set). Return to the position) and wait until the next switching work.

  And together with this traveling girder device 100 and the turn-back device M, the aeration facility and the watering device are connected to the control device, and the humidity sensor and the oxygen detection sensor are arranged in the fermentation lane 1 and these and the control device. In addition to the automatic operation of the traveling girder device 100 and the switching device M described above, when the humidity sensor detects a lack of moisture, the watering device is turned on to spray water and adjust the moisture. When the accumulated interior is deficient in oxygen, if the aeration equipment is turned on and fresh air is supplied to adjust oxygen, a fully automated organic waste treatment equipment can be obtained.

  Therefore, according to the organic waste treatment method and equipment described above, when utilizing the organic fermentation decomposition action by the active mixed microorganisms, the temperature condition necessary for fermentation is deposited at the depth as described above. Therefore, no heat source is required to effectively use the heat generated during fermentation. In other words, in terms of energy, if only the power for aeration and the power for turning are supplied, organic waste such as sewage treatment sludge, which has been difficult to dispose of in the past, and wood processing or old wood processing are generated. Chips can be converted into organic fertilizers necessary for plant growth. Moreover, in the case of a cold district where it is not possible to cope with the heat generated during the fermentation, the above-described fermentation can be performed smoothly by operating the heater with an appropriate capacity corresponding to the outside air temperature. In addition, when a new processing object is sequentially added to the fermentation lane where the base is vacant, a continuous process is performed in which organic fermentation-decomposed products are sequentially generated from the tip of the fermentation lane. It becomes possible to treat about 100t of organic waste per month per lane.

  In the treatment method and facility according to the embodiment of the present invention, the odor (odor) generated in the fermentation treatment facility A and confined in the fermentation treatment facility is collected via the air collection duct 210A. Air is supplied to the compressor 211 side by the air suction device 210B, and is pressurized and discharged from the bottom of the water tank B1 into the water. By bubbling in the water tank B1, odorous substances are added to the water in the water tank B1. Odor substances remaining in the odorous air partially recovered and rising on the water surface of the water tank B1 are also supplied to the carbonaceous substrate being fermented in the fermentation lane 201 for deodorization. It is supplied as aeration or a part of aeration through the air supply tool 214, and is fermented and decomposed in the carbonaceous substrate during the fermentation. In addition, the deodorization fermentation lane 201 does not contain organic waste such as sewage sludge as in the fermentation treatment facility A. Therefore, the deodorization fermentation lane 201 does not contain any odorous substances. Does not occur. Furthermore, 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 released to the outside air in a state where the deodorizing device 202 is completely deodorized. (Exhaust). Moreover, the water which collect | recovered some odorous substances in the said water tank B1 is used for the water | moisture content adjustment to the carbonaceous base material in fermentation in the said fermentation lane 201 for a deodorizing, and the carbonaceous base material in this fermentation It is fermented and decomposed inside.

  For some reason, for example, even if the carbonaceous substrate is solidified in the fermentation lane 1 and the fermentation lane 201 for deodorization due to lack of water or a decrease in the fermentation effect, Since the turn-back device M arranged in is prevented by performing the combined operation as described above, the fermentation is more stably promoted even by a slight change in conditions.

そして、段階希釈法によりシャーレ中に出現したコロニーを釣菌して、それらを同定用の試験菌株とした。

And the colony which appeared in the petri dish by a serial dilution method was fished, and they were made into the test strain for identification.

  In addition, in the identification of the bacterial species of bacteria, mold, actinomycetes and yeast, the bacterial species were identified according to the classification described in Table 5.

上記手順を踏んで分離および同定された活性混合微生物に含まれる細菌、カビ、放線菌および酵母の主要菌種を、以下の表６に例示した。

The main bacterial species of bacteria, molds, actinomycetes and yeasts contained in the active mixed microorganisms isolated and identified by following the above procedure are exemplified in Table 6 below.

  The organic waste treatment method and treatment equipment according to the present invention are defined as wastewater treatment sludge containing organic matter, food sludge such as okara, or food waste such as residue (residue), etc. "Organic waste such as sewage treatment sludge") can be used to treat organic fertilizers useful for horticulture and agriculture.

It is a top view which shows the arrangement configuration of the organic waste processing equipment concerning this invention. It is the figure which expanded and represented the structure of the deodorizing processing equipment shown in FIG. 1, (a) is not a plane, (b) is the II arrow directional side view of (a). It is an enlarged view which shows the structure of the cross section of a fermentation lane. It is a side view which shows the detailed structure of the turning-over apparatus used with the organic waste processing facility shown in FIG. It is the II-II arrow line view of FIG. 4 which shows the planar structure of the turning device shown in FIG. It is a perspective view which shows the structure of the sieving apparatus which produces | generates the produced | generated organic fertilizer shown in FIG. 1 to predetermined | prescribed roughness (particle size). It is a top view which shows the structure of a bagging apparatus and a palletizer. It is a perspective view which shows the structure of the cutting device arrange | positioned at the lower end of a hopper. It is a perspective view which shows the structure of the principal part of the fermentation lane part of the organic waste processing equipment concerning another Example. It is a top view which shows the structure of the switching device part shown in FIG. It is a side view which shows the structure of the switching device part shown in FIG. It is a flowchart which shows the automatic control process of the control apparatus of the organic waste processing facility shown in FIG.

Explanation of symbols

A ... Fermentation treatment equipment B ... Deodorization treatment equipment 1 ... Fermentation lane 201 ... Deodorization fermentation lane B1 ... Water tank (liquid tank)
M …… Cutting machine

Claims (9)

(A). An approximately equal amount of carbonaceous substrate made of sawdust, straw, rice husk, branch tree, bark, wood chip, bark, duct, etc. or a mixture selected from these is added to organic waste such as sewage sludge. In addition, an active mixed microorganism having an fermentation decomposition action of organic substances is added at a predetermined ratio, and (b). Adjusting the water so that the processed product of (a) has a humidity suitable for the fermentation decomposition action of the active mixed microorganism, (c). Next, what is completed in the process (b) is deposited in a fermentation lane at a depth where the internal temperature during fermentation is approximately 65 to 85 ° C., and sufficient oxygen is supplied to the deposited interior. Aeration is performed in the interior until the fermentation treatment of (e) is completed, (d). While adjusting the moisture so that the one deposited in the fermentation lane and maintaining the humidity maintains the humidity, the mixture is sufficiently stirred from the bottom of the fermentation lane to the surface at a rate of 1 to 2 times a day. (E). Performing the step (d) for about 2 months after the completion of fermentation, (f). When the fermentation is completed, it is removed from the fermentation lane, and further aged in the aging yard while giving a turnover operation once every 10 to 20 days while maintaining a humidity of about 50 to 65% for about 2 months. In the organic waste treatment method having a series of steps (a) to (f) above,
The treatment process is performed in a state of partitioning so that the odorous air in the fermentation treatment space where the series of treatment steps (a) to (f) is performed does not flow out to the outside, and the presence in the fermentation treatment space is determined. The odor air is guided to a separately provided deodorization treatment space, introduced into a liquid tank disposed in the deodorization treatment space, and the odor substance in the odorous air is absorbed in the liquid, The odorous air recovered from above the liquid tank is introduced into the carbonaceous base material during fermentation in the fermentation lane for deodorization provided in the deodorization treatment space, and then deodorized by fermentation, and then, An organic waste processing method characterized by being configured to discharge to the outside air side.   The organic waste treatment method according to claim 1, wherein the liquid in the liquid tank is water.   The organic waste treatment method according to claim 1 or 2, wherein the liquid in the liquid tank is used for moisture adjustment of a fermentation lane for deodorization in a deodorization treatment space.   The aeration is configured to adjust and supply the outside air temperature by heating so that the internal temperature accumulated in the fermentation lane is approximately 65 to 85 ° C. The organic waste processing method of any one of term | claim.   The said turning operation | work is implemented by the combined operation | movement of a feed operation | movement and the direction different from it so that solidification may be prevented in a fermentation lane. Organic waste disposal method. 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 on the pair of left and right wall surfaces of the fermentation lane, and the floor and / or wall surface of the fermentation lane An aeration facility that blows air from the car, a turn-back device that feeds the lane tip to the tip of the fermentation lane while sufficiently agitating from the bottom to the surface of the fermentation lane while running on the running rail, or the tip of the fermentation lane or its Organic waste that has a fermenting treatment facility equipped with an aging yard provided in the vicinity and a watering device provided in the fermentation lane and the ripening yard, and treats organic waste such as sewage treatment sludge using microorganisms In material processing equipment,
The periphery of the fermentation treatment facility is formed in a single space covered with an outer wall and a ceiling, and a gas collecting device for collecting odorous air in the fermentation treatment facility is disposed at or near the ceiling portion. In addition to the above fermentation treatment equipment, a deodorization treatment facility which is separated from the outside air by the outer wall is provided, and a liquid tank and a carbonaceous base material in which moisture is adjusted by adding active mixed microorganisms in the deodorization treatment equipment A deodorizing fermentation lane that accommodates and ferments, and connects the air collecting device to the liquid tank in the deodorizing treatment equipment through the exhaust passage, and also collects the air above the liquid tank. A deodorizing fermentation lane in the deodorizing treatment facility is configured to guide the odorous air rising from the liquid tank to the deodorizing fermentation lane in the deodorizing treatment facility via the air supply passage; The one that passed through the carbonaceous substrate during fermentation and the odor components in the odorous air were almost removed. Organic waste treatment facility, characterized in that so as to discharge the part.   The organic waste treatment facility according to claim 6, further comprising a spraying device for spraying water in the liquid tank into a fermentation lane for deodorization of the deodorization treatment facility.   The reversing device has a pair of left and right arm members whose upper end is located in the vicinity of the upper end of the bulkhead of the fermentation lane and whose lower end is movable up and down from the bottom of the fermentation lane to the upper position, and the upper ends of the pair of left and right arm members. A pair of left and right chains wound between the shaft of the upper sprocket arranged and the shaft of the lower sprocket arranged at the lower end, and a plurality of slat conveyors passed between the pair of left and right chains A slat plate, a scraper plate erected from the slat plate, a drive device for driving the pair of left and right chains, and an elevating means for raising and lowering the pair of left and right arm members. In the state where the arm member is tilted downward and the scraping plate is rotated between the upper and lower sprockets by the driving device, the fermenting lane is traveled and the travel is performed. Organic waste treatment facility according to claim 6 or 7, characterized in that configured to raise and lower the arm member at an appropriate timing.   The organic waste treatment facility according to any one of claims 6 to 8, wherein the aeration facility is provided with a variable capacity heater that can be changed according to an outside air temperature.

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