JP4386933B2 - Organic waste treatment system - Google Patents

Description

  The present invention relates to organic waste such as seafood residues discarded in food processing, livestock manure such as chicken dung, swine dung, and cow dung, agricultural waste such as vegetable waste, and animal and vegetable food residues such as raw garbage. Related to the processing system.

Organic waste such as seafood residues, animal and vegetable food residues such as raw garbage, livestock manure such as chicken dung, pork dung, cow dung, and agricultural waste such as vegetable waste, which are discarded in the food processing process, It is processed by incineration or landfill. However, a large amount of seafood residue, raw garbage, etc. have a high water content, and a large amount of fuel is required to incinerate them, which is extremely uneconomical, and has recently been increasing in CO ₂ reduction. Contrary to the request. In addition, with the increase in the amount of waste, landfill processing has become difficult, and a method for recovering and recycling more waste is being taken.

  For example, it is possible to recycle organic waste such as animal manure such as chicken manure and pig manure, livestock carcasses, hay and septic crops, and animal and vegetable food residues such as raw garbage. is there.

  However, in the method of depositing and fermenting organic waste and treating it as compost, it takes about 1 to 2 years to completely ferment the waste, so it is difficult to treat a large amount of waste. Therefore, conventional fermenting methods cannot efficiently process compost in a short period of time, and treat organic waste generated in large-scale industrial manufacturing processes, such as large-scale agriculture and food processing industries. It was extremely difficult to do.

  Furthermore, the seafood residue contains a lot of heavy metals such as cadmium, mercury, and arsenic, and if it is contained in the compost after fermentation, it cannot be practically used for agricultural products. In addition, garbage is mixed with persistent plastic materials such as plastic bags such as shopping bags and plastic trays. If these materials remain undecomposed, they will be a major obstacle when used as compost. It becomes.

As such organic waste treatment methods and treatment apparatuses, for example, the method described in Japanese Patent Application Laid-Open No. 2000-354852 (Patent Document 1) and the device described in Japanese Patent Application Laid-Open No. 11-290830 are known. However, since the types and combinations of the cells used are insufficient, it is difficult to disassemble resin materials such as seafood processing waste and shopping bags that are residues of seafood. It was extremely difficult to quickly and reliably dispose of the waste. In addition, since it is difficult to treat heavy metal components contained in waste, if waste containing a large amount of heavy metal components such as the above-mentioned fishery processing waste is treated, residual and concentrated heavy metal Due to the ingredients, the compost after treatment cannot be used for crops. As a result, the effective use of resources was hindered and new waste was generated.
JP 2000-354852 A JP 11-290830 A

  The object of the present invention is to provide organic residues such as seafood residues discarded in food processing processes, livestock manure such as chicken manure / pig manure, cow manure, agricultural waste such as vegetable waste, and animal and vegetable food residues such as raw garbage. Waste can be efficiently decomposed and processed in a short time, and resin materials can be processed. Waste that contains heavy metal components can also be safely processed, and organic waste is effective for recycling waste. It is to provide a material processing system.

In order to achieve the above object, the present invention has the following configuration.
(1) It includes a base material for fixing cells and a bacterial genus group belonging to at least the following 14 genera, and the input waste is decomposed by the fermentation action of the bacterial group to reduce the waste volume to 24 Organic waste treatment system that reduces the volume to 1/100 or less within a time.
Bacterial genus group 1: streptomyces
2: sulfolobus
3: saccharopolyspola
4: White decaying basidiomycetes 5: nocordia
6: pseudomononas
7: bacillus
8: cytophaga
9: spocytocytophaga
10: cellulomonas
11: clostridum
12: aspergillus
13: penicillium
14: rhizopus
(2) The bacterial group is a heat-resistant actinomycete, a high-temperature to medium-temperature bacteria, having a bacterium selected from streptomyces avermitillis, acidophilic archaea sulfolobus shibatae, and saccharopolyspola rectivirgula,
White rot basidiomycetes, actinomycetes, streptomyces, nocordia, bacteria pseudomonas, bacillus, cellulose-degrading bacteria and fibrinolytic bacteria, gliding bacteria cytophaga, spotocytophaga, pseudomonas, bacillus, cellulomonas, streptomyces, nocordia Having a bacterium selected from the sex spore-forming fungus clostridum,
As a lipolytic bacterium, it has a bacterium selected from the filamentous fungi aspergillus, penicillium, rhizpus, which produces and secretes lipase,
As a Bacillus subtilis, there is a bacterium selected from bacillus subtilis, which is a bacterium producing amylase and protease,
As lactic acid bacteria
The above (1) organic waste treatment system having a bacterium selected from Lactobacillus Plantarum.
(3) The organic waste treatment system according to (1) or (2), wherein the bacterial group contains 10 or more, preferably 20 or more, particularly all species selected from the following species.
Candida albicans TAX5476
Endomycopsis burtonii
Nocardia asteroides
Bacillus subtillis
Pseudomonas bacterium Rhizobium
Aspergillus niger TAX5061
Rhodospillum rubrum IFO3986
Rhodopseudomonas capsulata
Rhodobacter sphaeroides IFO12203
Chromatium vinosum
Streptomyces albus IFO3710
strepto verticillussp ATCC23654
Nocordia asteroides ATCC19247
Micromonospora chalcea IFO13503
Aspergillus oryzae IFO5770
Mucor hiemalis IFO8567
Saccharomyces cerevisial IFO1346
Candida utilis IFO0619
Lactobacillus Plantarum IFO3070
Pediococcus Halophilus IFO12172
Streptococcus Lactis IFO12007
Streptococcus Faecalis IFO3971
Arthrobacter sp.w 1-6.
Pseudomonas aeruginosa
Corynebacterium sp.
Comamonas acidovorans
C.acidovorans.TB-35
Pseudomonas glumae
Pseudomonas gladioli
Pseudomonas avenae
Agrobacterium mochiganens
Pseudomonas solanacearum
Pseudomonas fluorescein
Aspergillus flavus
Aspergillus fumigatus
Aspergillus versicolor
Aspergillus penicillioides
(4) At least a part of the water-soluble heavy metal component containing one or more of cadmium, mercury, and arsenic contained in the organic waste before treatment is changed to water-insoluble (insoluble) and rendered harmless. The organic waste treatment system according to any one of (1) to (3) above.
(5) having a pool-shaped fermenter having the base material and a stirring device,
The organic waste treatment system according to any one of the above (1) to (4), wherein the waste is treated to 10 mm or less and then introduced into a fermentor and decomposed and reduced in volume by fermentation.

  According to the present invention, organic residues such as seafood residues discarded in food processing processes, livestock manure such as chicken manure / pig manure, cow manure, agricultural waste such as vegetable waste, and animal and vegetable food residues such as raw garbage It is possible to provide an organic waste processing system that can efficiently decompose and dispose of waste in a short time and is effective in recycling waste.

  Further, it is possible to provide an organic waste treatment system that can treat non-combustible resin material such as shopping bags and trays and can safely treat waste containing heavy metal components.

The organic waste treatment system of the present invention includes a base material for fixing cells and a bacterial genus group belonging to at least the following 14 genera, and the input waste is decomposed by the fermentation action of the bacterial group. The volume is reduced.
Bacterial genus group 1: streptomyces
2: sulfolobus
3: saccharopolyspola
4: White decaying basidiomycetes 5: nocordia
6: pseudomononas
7: bacillus
8: cytophaga
9: spocytocytophaga
10: cellulomonas
11: clostridum
12: aspergillus
13: penicillium
14: rhizopus
These base materials and microbial cells are mixed and stored in the treatment tank. Then, while maintaining the inside of the treatment tank at an appropriate temperature and humidity, the organic waste is introduced and stirred for treatment.

  In the present invention, the base material used for fixing and carrying the bacterial cells is not particularly limited as long as it can fix and carry the fungi described below on the surface or internal structure thereof. . Specifically, porous materials that can easily fix fungi, and organic materials such as bark, sawdust, charcoal powder, coffee cake, rice husk, and rice bran can be suitably used. Or 2 or more types can be mixed and used.

  In the treatment system of the present invention, it is preferable to contain the following bacteria as the bacteria fixed and supported on the base material.

Heat-resistant actinomycetes High-temperature to medium-temperature bacteria are preferred.
streptomyces avermitillis
Acidophilic archaeon sulfolobus shibatae
saccharopolyspola rectivirgula

Lignin-degrading bacteria White-roting basidiomycetes, streptomyces, nocordia,
Bacteria pseudomonas, bacillus
Cellulolytic bacteria, fibrinolytic bacteria, gliding bacteria
cytophaga, spotocytophaga, pseudomonas, bacillus, cellulomonas, streptomyces, nocordia
Anaerobic spore mold fungus clostridum
Lipolytic bacteria Fat degradation is broken down by the involvement of lipase, a lipolytic enzyme. The fungi that produce and secrete lipase are aspergillus, penicillium, rhizopus, etc.

Bacillus subtilis
bacillus subtilis An eubacteria representative and widely distributed in dead grass and dust. What is important is an amylase or protease producing bacterium, and in particular, protease is a protein degrading enzyme. Amylase results in reduced viscosity of starch and disappearance of iodine reaction.
Lactic acid bacteria
Lactobacillus Plantarum

As above
(1) streptomyces
(2) sulfolobus
(3) saccharopolyspola
(4) White decaying basidiomycetes (5) nocordia
(6) pseudomononas
(7) bacillus
(8) cytophaga
(9) spocytocytophaga
(10) cellulomonas
(11) clostridum
(12) aspergillus
(13) penicillium
(14) rhizopus
It is preferable to contain cells belonging to 14 genera or more selected from 14 genera, particularly 15 genera or more including the lactic acid bacterium Luctobacillus. Further, it is recommended that the number of bacterial cells belonging to these is more than these, preferably 20 or more, more preferably 40 or more, still more preferably 100 or more, particularly 200 or more. A good result is obtained.

  In particular, it is desirable to contain biodegradable plastic degrading bacteria, petroleum degrading bacteria, polyester degrading bacteria, PUR degrading bacteria, soil degrading microorganisms, and soil microorganism fluorescent bacteria.

  Specifically, it is good to contain 10 or more types selected from the following species, preferably 20 or more types, particularly all species.

Candida albicans TAX5476
Endomycopsis burtonii
Nocardia asteroides
Bacillus subtillis
Pseudomonas bacterium Rhizobium
Aspergillus niger TAX5061
Rhodospillum rubrum IFO3986
Rhodopseudomonas capsulata
Rhodobacter sphaeroides IFO12203
Chromatium vinosum
Streptomyces albus IFO3710
strepto verticillussp ATCC23654
Nocordia asteroides ATCC19247
Micromonospora chalcea IFO13503
Aspergillus oryzae IFO5770
Mucor hiemalis IFO8567
Saccharomyces cerevisial IFO1346
Candida utilis IFO0619
Lactobacillus Plantarum IFO3070
Pediococcus Halophilus IFO12172
Streptococcus Lactis IFO12007
Streptococcus Faecalis IFO3971
Arthrobacter sp.w 1-6.
Pseudomonas aeruginosa
Corynebacterium sp.
Comamonas acidovorans
C.acidovorans.TB-35
Pseudomonas glumae
Pseudomonas gladioli
Pseudomonas avenae
Agrobacterium mochiganens
Pseudomonas solanacearum
Pseudomonas fluorescein
Aspergillus flavus
Aspergillus fumigatus
Aspergillus versicolor
Aspergillus penicillioides
(In the above, the numbers attached to the end of the genus name and species name are the numbers for classification used by organizations such as ATCC, IFO, TAX, etc. For example, IFO 3986 is the number of microorganisms classified and collected by IFO. No. 3986.)

  By the combination of these decomposing bacteria, it is possible to reduce the volume of all organic substances. That is, in the present invention, by using a combination of a plurality of fungi belonging to the above 14 or 15 genera, they establish a symbiotic relationship in the base material, and rapidly decompose organic substances and resin materials by the cooperative action of these fungi I think that the. Note that the mixing ratio of these bacteria is arbitrary, and an optimal amount may be blended based on empirical rules depending on the base material, the type of waste to be decomposed, and the like.

  These bacteria are preferably added in an amount of about 3 to 30% by mass with respect to the base material. The amount of cells added depends on the quality and quantity of the waste to be decomposed, and if it is relatively easy to decompose, such as those mainly composed of sugar and starch, a sufficient effect can be obtained even at 5% or less. It is done. On the other hand, in the case of marine waste that is difficult to decompose, such as “Ikagoro”, it is desirable to add 15% or more.

  Next, the fermentation conditions of the system of the present invention will be described. First, the base material to which bacteria are added is controlled at an appropriate temperature and humidity. The temperature at this time is 25 to 50 ° C., preferably 30 to 45 ° C. in average temperature, and the humidity is 20 to 50%, preferably 30 to 40%. Waste is put into this base material. At this time, it is desirable that the organic material to be input is a few tenths of the base material. Specifically, the mass ratio is 1/10 or less of the total amount of the base material, preferably 1/20 or less, particularly 1/30 or less. After the organic waste is charged, the temperature of the base material rises to 60 to 70 ° C. due to fermentation, and appropriate fermentation is promoted by controlling the temperature.

  As a means for controlling the temperature of the base material, it may be heated from the outside or inside of the fermentation tank using a hot wire heater or the like, or hot air is blown into the fermentation tank using a hot air heater. It may be. In particular, warm air is preferable because humidity control of the base material can also be used. The humidity control is adjusted to an appropriate condition by watering in addition to the warm air.

  As a fermenter, what is called a batch-type fermenter is preferable, and fermentation is performed by putting a base material into a pool-like tank as described later, and stirring and heating.

  In the fermentation process under the above conditions, the input organic waste disappears almost completely. Disappearing here means being decomposed into water, carbon dioxide gas, and nitrogen gas, leaving very little residue. Degradation is usually complete in 24 hours. Further, the treatment time varies depending on the type of organic waste to be input. General household residues such as vegetables are decomposed in 6 hours, seafood residues from the fishery processing plant are decomposed in 8 to 10 hours, and meats are also decomposed in 8 to 10 hours. Even if it disappears in 10 hours, the next waste input should be refrained for about 14 hours in order to adjust the condition of the base material, particularly the humidity. That is, since a large amount of moisture is generated during the decomposition process as described above, the humidity in the base material must be adjusted to the optimum value.

  In addition, according to the system of the present invention, inorganic wastes that are difficult to be decomposed by ordinary organic matter treatment such as shells, crab shells, sea urchin shells, oyster shells can be decomposed in a few days. Plastic bags used for shopping bags and resin materials used for trays can also be decomposed.

  In the system of the present invention, it is desirable to crush the waste into chips in order to increase the decomposition efficiency when the organic waste and the above-described inorganic waste or resin material are put into the base material. In particular, inorganic waste such as shells, crab shells, sea urchin shells, oyster shells, plastic bags, resin materials used for trays, and the like can be completely decomposed only after being crushed. The size of the crushed pieces is preferably 10 mm or less, more preferably 5 mm or less at the maximum portion. A quick decomposition process can be performed by preparing below this magnitude | size.

  With the system of the present invention, most of the input amount of waste can be decomposed and lost. Specifically, it is possible to reduce the volume of the input waste to 1/100 or less, preferably 1/500, particularly 1/1000 or less. Moreover, since it is decomposed into water, carbon dioxide gas and nitrogen gas except for some residues, it is environmentally friendly and does not waste fossil fuel. Moreover, there is no generation of rot odor accompanying fermentation or unpleasant odor, and the structure of the treatment facility and the degree of freedom of location conditions are high.

  Furthermore, in the present invention, at least a part of the water-soluble heavy metal component containing one or more of cadmium, mercury, and arsenic is changed to water-insoluble (insoluble) by the combination of the above-mentioned bacteria, and is harmless. Can be Specifically, the amount of water-soluble heavy metal components contained in the base material after treatment and the residue is reduced without accumulating, and is reduced to less than 1/1, further less than 1/2, and particularly less than 1/3. Can do. Although this action has not been clearly clarified, for example, cadmium oxide, cadmium chloride, cadmium sulfate, cadmium nitrate, and cadmium bromide, which are easily soluble in water, are cadmium sulfide, cadmium carbonate, It is thought that it has changed to cadmium hydroxide or a metal complex. Here, the term “water-insoluble” means that, when measuring heavy metal elements, heavy metal components eluted from the sample into water are water-soluble, and those that are not eluted are water-insoluble. That is, it can be expressed as something other than a heavy metal element that can be eluted and measured in an aqueous solution and cannot be measured as a heavy metal ion. The heavy metal element eluted in the aqueous solution can be measured by an atomic absorption method, an ICP-MS method, or the like.

  Next, specific examples of the fermenter and the stirring device of the system of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing the structure of a fermenter used in the present invention.

  In the figure, the fermenter 1 has a pool 11 and a stirring device 3 for stirring the inside of the boule 11. On the pool 11, a roof 15 supported by the wall 14 is fixed. By covering the pool 11 with the wall 14 and the roof 15, a closed space is formed, and management of temperature and humidity is facilitated. .

  Preferably, as shown in FIG. 2, the sheet 16 is stretched under the roof 15 so that the water vapor can escape to the upper part and the temperature can be kept constant. The generated water vapor rises upward and can be performed by a ventilation device in the roof ridge 15a. Further, water receiving grooves 17 are provided at both ends of the sheet 16. With such a structure, efficient ventilation and heat insulation are performed, and the manufacturing cost of the facility can be suppressed. By disposing the pool 11 at a position dug deeper than the ground GL as in the illustrated example, a decrease in temperature can be prevented. Furthermore, you may arrange | position a heat insulating material etc. around a side surface or a bottom face.

  In the example of FIG. 1, warm air is blown out from the bottom of the pool 11 by a blower 13 disposed beside the pool 11 and pipes 12 a and 12 b connected thereto.

  A stirring rail 2 that slides on a rail 21 is attached on the side wall of the pool 11, and a stirrer 3 is further attached to the stirring rail 2. The stirrer 3 is provided with two stirring rods 31a and 31b having spiral stirring blades, and the stirring rods 31a and 31b rotate to stir the base material. The stirrer 3 can freely move on the stirring rail 2 in the horizontal direction of the drawing by wheels 34, and the stirring rail 2 can freely slide on the rail 21 by a mechanism (not shown). It can be moved to any position.

  As shown in FIG. 3, the stirrers 31a and 31b of the stirrer 3 can be changed in posture from an upright state by arms 35 and 36 to a horizontal state, thereby facilitating the return to the origin at the end of the work. At the same time, it has excellent maintainability. The stirring rods 31a and 31b are hollow cylindrical rods in which stirring blades are spirally wound, and hot air is blown out from the tips thereof. This warm air is sent through a hollow portion from a motor 32 for rotating and blowing blades attached to the rear ends of the stirring rods 31a and 31b. In addition, the stirrer 3 is provided with a mechanism for driving the arms 35 and 36, a moving motor 33, and the like.

  Using such a stirrer 3, the base material accommodated in the pool 11 is stirred, and hot air is blown into it, so that the temperature and humidity of the base material can be appropriately maintained and stirring can be performed, so that fermentation management can be performed very efficiently. Work can be done.

  Next, an apparatus for crushing or crushing waste will be described. FIG. 4 is a schematic sectional view showing an example of a crushing apparatus used in the present invention. In the figure, the apparatus main body is a deformed L-shaped hollow structure shown in the left center of the drawing, and a plan view of each part, a cross-sectional view, and a development view of the rotary blade 62, fixed blade 63, etc. are shown around it. ing.

  The crushing device 5 in the illustrated example includes a hopper 51 for feeding waste, a first cylindrical processing outer shell 52, and a pair of crushing gears 53a and 53b disposed in the first processing outer sheath 52. Is provided. One of the two crushing gears 53 a and 53 b is driven from the motor 54 via a belt 55, and the other is further driven via a power transmission pulley 56. In this way, the crushing gears 53a and 53b rotate so as to mesh with each other toward the opposite central portions, and the thrown-in waste is rolled up, crushed, and dropped while being crushed.

  Waste discharged from the crushing gears 53a and 53b is introduced from the first processing portion outer sheath 52 into the cylindrical second processing portion outer sheath 57 through the connecting portion 56 having a reduced diameter. Inside the second processing portion mantle 57, the second processing portion mantle 57 and a crushing drum 58 having a reduced diameter in the vicinity of both ends through a gap of a predetermined interval are arranged, and the motor 59 passes the belt through the belt. The rotation shaft 60 is driven. In the second processing unit, the waste moves obliquely downward while the solid matter is crushed in the gap between the second processing unit mantle 57 and the crushing drum 58. Therefore, the waste is crushed and broken to a size substantially equal to or smaller than the gap in the second processing section.

  In the vicinity of the lower end portion (terminal portion) of the second processing portion mantle 57, a rotary blade 62 having a plurality of blades radially and a fixed blade 63 having a plurality of blades in the same manner are provided through a slight gap. These constitute the third processing unit. A plurality of protrusions are arranged on the rotary blade 62 and the fixed blade 63 at predetermined intervals. Further, the protrusions of the rotor blade 62 and the protrusions of the fixed blade 63 are alternately arranged opposite to each other, and one of the protrusions passes through a portion without the other protrusion, and the rotor blade 62 Can be rotated. The rotor blade 62 is also connected to the rotating shaft of the crushing drum 58 and can be rotated in the same manner as the crushing drum 58. The waste is further crushed and broken in this third processing section.

  The second processing portion mantle 57 is attached to the fixing base 61 via a support, so that the entire apparatus is held and fixed.

  The waste discharged from the third processing unit passes through the flat cylindrical fourth processing unit mantle 64 fixed to the second processing unit mantle 57 so as to fall. In the vicinity of the lower end of the fourth processing portion mantle 64, the obstructed bowl-shaped fixed crushing drum 68 and the cross-section of the rotary blade 67 having a plurality of blades radially have a slight gap. The fourth processing unit is configured by these.

  The fixed crushing drum 68 is formed with a radial spiral projection, and a rotary blade 67 disposed thereon rotates through a gap. For this reason, the waste is cut between the spiral projections by the rotary blade 67, moved so as to be rubbed, and crushed and broken so as to be rubbed with just a mortar.

  In this way, the thrown-in waste passes through the first processing section to the fourth processing section, and is sequentially crushed and broken to finally reach a size of 10 mm or less, preferably 5 mm or less. It is finely divided. Here, the rotation speed of the crushing gears 53a and 53b of the first processing unit is preferably 40 to 80 rotations per minute, particularly 50 to 70 rotations. The rotation speed of the drum 58 of the second processing unit and the rotary blade 62 of the third processing unit is preferably 1000 to 1400 rotations per minute, particularly 1100 to 1300 rotations. Furthermore, the rotation speed of the rotary blade 67 of the fourth processing unit is preferably 800 to 1200 rotations per minute, particularly 900 to 1100 rotations. These rotation directions are preferably different from each other.

  In this way, the organic matter in the waste is also made of calcium, chitin and other inorganic materials such as shells, rice husks, crab shells and sea urchin shells, hard waste, or resin products such as plastic bags and polyethylene. Is finely pulverized to a predetermined size, and can be easily decomposed by microorganisms.

  Next, an Example is shown and this invention is demonstrated more concretely.

[Example 1]
In the following procedure, continuous treatment was performed for 7 days, and the content of heavy metal components (mercury, arsenic, cadmium) before and after the treatment was measured.

The base material to be used as the fungus bed was prepared by mixing appropriate amounts of bark, sawdust, charcoal powder, and blur, respectively, and preparing 600 l (liter) which is 30 times the daily processing capacity. To this base material, 15% by weight of a mixture of culture bacteria for treatment belonging to the above 15 genera including at least the bacterial species of the following bacterial cell list at a predetermined ratio was added and mixed.
[Bacteria list]
Candida albicans TAX5476
Endomycopsis burtonii
Nocardia asteroides
Bacillus subtillis
Pseudomonas bacterium Rhizobium
Aspergillus niger TAX5061
Rhodospillum rubrum IFO3986
Rhodopseudomonas capsulata
Rhodobacter sphaeroides IFO12203
Chromatium vinosum
Streptomyces albus IFO3710
strepto verticillussp ATCC23654
Nocordia asteroides ATCC19247
Micromonospora chalcea IFO13503
Aspergillus oryzae IFO5770
Mucor hiemalis IFO8567
Saccharomyces cerevisial IFO1346
Candida utilis IFO0619
Luctobacillus Plantarum IFO3070
Pediococcus Halophilus IFO12172
Streptococcus Lactis IFO12007
Streptococcus Faecalis IFO3971
Arthrobacter sp.w 1-6.
Pseudomonas aeruginosa
Corynebacterium sp.
Comamonas acidovorans
C.acidovorans.TB-35
Pseudomonas glumae
Pseudomonas gladioli
Pseudomonas avenae
Agrobacterium mochiganens
Pseudomonas solanacearum
Pseudomonas fluorescein
Aspergillus flavus
Aspergillus fumigatus
Aspergillus versicolor
Aspergillus penicillioides

  20 kg of squid goro mainly containing squid internal organs was added to the base material containing the cells, and the temperature of the base material was kept at 30 to 45 ° C. and the humidity was kept at 30 to 40% while stirring. When the base material was visually inspected after 24 hours, no trace of the inserted squid was confirmed, and the visual inspection confirmed that it was completely disappeared. Further, 20 kg of Ikagoro was put into this base material, and visual confirmation after 24 hours was repeated for 7 days by the same operation. As a result, in the 7-day Ikagoro repeated charging test, it was confirmed that Ikagoro that had been charged within 24 hours was completely lost.

  The mercury, arsenic and cadmium contents of the base material before treatment and Ikagoro and the mercury, arsenic and cadmium contents of the base material after treatment were measured. The measurement was requested from the Hokkaido Pharmacists Association Public Health Inspection Center, and the materials were eluted in an aqueous solution. Mercury and arsenic were measured by the atomic absorption method, and cadmium was measured by the ICP-MS method. The results are shown in Table 1 below.

  From Table 1, the cadmium contained in the squid before treatment is 0.74 mg / l, the cadmium contained in the base material before treatment is 0.011 mg / l, and the total amount of squid is 140 kg, so 1 kg = 1 liter As a result, the total amount of cadmium in the input waste is 0.74 × 140 = 103.6 mg and the base material is 600 liters, so the total amount of cadmium in the base material is 0.011 × 600 = 6.6 mg. is there. Therefore, the total amount of cadmium present in the treated matrix should be 103.6 + 6.6 = 110.2 mg. However, the cadmium content after the treatment is 0.065 mg / l, and when this is the total amount, it is 0.065 × 600 = 39 mg. Therefore, 110.2−39 = 71.2 mg of cadmium is contained in the base material. It was processed by the microorganisms. Even if paying attention only to the cadmium contained in the input Ikagoro, the amount is reduced to 1/3 or less. Similar effects are observed with heavy metal components other than cadmium, mercury, and arsenic.

  This is considered that the water-soluble heavy metal component was changed to water-insoluble due to the action of microorganisms in the base material. By making it water-insoluble as described above, harmful heavy metal components can be rendered harmless, and the influence of contamination by the heavy metal components of the base material after processing can be reduced to a negligible level. In addition, the content rate of the said residual heavy metal component is a value which conforms to a national safety standard or less.

[Example 2]
In Example 1, instead of squid goro, scallops, octopus viscera, and king crab residues (mainly shells) were sequentially introduced into the base material every other day. It was observed that it had disappeared within 24 hours.

  From the above results, the system of the present invention can quickly and completely treat marine product residues and the like that are difficult to treat with conventional systems, and can also reduce harmful heavy metal components, so that organic waste with high efficiency and high safety can be obtained. It can be seen that material processing can be performed.

It is a schematic sectional drawing which shows the structure of the fermenter used for this invention. It is a schematic sectional drawing which shows the relationship between the pool used as a fermenter, a roof, a sheet | seat, etc. It is a partial schematic side view of FIG. 1 which shows the structure of the stirring apparatus used for this invention. It is a schematic sectional drawing which shows an example of the crushing apparatus used for this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fermenter 2 Stirring rail 3 Stirring apparatus 11 Side wall 14 Support column 15 Roof 16 Sheet 21 Rail 31a, 31b Stirring rod 32 Motor

Claims (5)

The base material for fixing the microbial cells and the bacterial genus group belonging to at least the following 14 genera, the input waste is decomposed by the fermentation action of the bacterial group, the waste volume within 24 hours Organic waste treatment system that reduces volume to 1/100 or less.
Bacterial genus group (1) streptomyces
(2) sulfolobus
(3) saccharopolyspola
(4) White decaying basidiomycetes (5) nocordia
(6) pseudomononas
(7) bacillus
(8) cytophaga
(9) spocytocytophaga
(10) cellulomonas
(11) clostridum
(12) aspergillus
(13) penicillium
(14) rhizopus The bacterial group is a heat-resistant actinomycete having a high temperature to a medium temperature range and having a bacterium selected from streptomyces avermitillis, acidophilic archaeon sulfolobus shibatae, and saccharopolyspola rectivirgula,
White rot basidiomycetes, actinomycetes, streptomyces, nocordia, bacteria pseudomonas, bacillus, cellulose-degrading bacteria and fibrinolytic bacteria, gliding bacteria cytophaga, spotocytophaga, pseudomonas, bacillus, cellulomonas, streptomyces, nocordia Having a bacterium selected from the sex spore-forming fungus clostridum,
As a lipolytic bacterium, it has a bacterium selected from the filamentous fungi aspergillus, penicillium, rhizpus, which produces and secretes lipase,
As a Bacillus subtilis, there is a bacterium selected from bacillus subtilis, which is a bacterium producing amylase and protease,
As lactic acid bacteria
The organic waste treatment system according to claim 1, comprising a bacterium selected from Lactobacillus Plantarum. The organic waste treatment system according to claim 1 or 2, wherein the bacterial group contains 20 or more species selected from the following species.
Candida albicans TAX5476
Endomycopsis burtonii
Nocardia asteroides
Bacillus subtillis
Pseudomonas bacterium Rhizobium
Aspergillus niger TAX5061
Rhodospillum rubrum IFO3986
Rhodopseudomonas capsulata
Rhodobacter sphaeroides IFO12203
Chromatium vinosum
Streptomyces albus IFO3710
strepto verticillussp ATCC23654
Nocordia asteroides ATCC19247
Micromonospora chalcea IFO13503
Aspergillus oryzae IFO5770
Mucor hiemalis IFO8567
Saccharomyces cerevisial IFO1346
Candida utilis IFO0619
Lactobacillus Plantarum IFO3070
Pediococcus Halophilus IFO12172
Streptococcus Lactis IFO12007
Streptococcus Faecalis IFO3971
Arthrobacter sp.w 1-6.
Pseudomonas aeruginosa
Corynebacterium sp.
Comamonas acidovorans
C.acidovorans.TB-35
Pseudomonas glumae
Pseudomonas gladioli
Pseudomonas avenae
Agrobacterium mochiganens
Pseudomonas solanacearum
Pseudomonas fluorescein
Aspergillus flavus
Aspergillus fumigatus
Aspergillus versicolor
Aspergillus penicillioides   2. At least a part of a water-soluble heavy metal component containing one or more of cadmium, mercury, and arsenic contained in organic waste before treatment is changed to water-insoluble (insoluble) so as to be detoxified. Organic waste processing system according to any one of. Having a pool-shaped fermenter having the base material and a stirring device,
The organic waste treatment system according to any one of claims 1 to 4, wherein the waste is treated to 10 mm or less, and then introduced into a fermenter to be decomposed and reduced in volume by fermentation.

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