JP2017225938A - Treatment device of organic waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treatment device of organic wastes which can be disposed after attaining aseptic condition and detoxication by the disinfection or sterilization of microorganisms and disease germs bred or adhered on the organic wastes.SOLUTION: A treatment device of organic wastes where the organic wastes are hydrolyzed while being agitated under high temperature and high pressure environments in a pressure-resistant container 1, thermally decomposed and carbonized includes: a steam supply means 9 supplying high temperature saturated steam into the container 1; a temperature adjusting means 11 adjusting temperature in the container 1 to 220-260°C; a pressure adjusting means 10 adjusting pressure in the container 1 to 2-3 MPa by an on-off valve; a steam discharge means 14 forcibly discharging steam generated in the container 1; and an agitation means 6 disposed with a shaft 7 agitating charged wastes in the container 1 and being penetrated in the container 1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waste treatment apparatus for decomposing and treating a conventional organic waste that has been treated by incineration or landfilling in a high-temperature and high-pressure environment using water vapor, and particularly used litter and medical waste. The present invention relates to an organic waste processing apparatus capable of sterilizing or killing pathogenic bacteria, microorganisms, viruses, bacteria, and various germs adhering to them during decomposition processing.

  Aside from conventional newspapers and recycled plastics that have been recycled to some extent, such as rubber from waste tires, etc., for example, paper such as used paper and waste paper, used plastic containers, Organic waste such as plastics such as bags and plastic bottles, or garbage from restaurants, canteens, and households are usually incinerated in an incinerator, or those that cannot be incinerated are buried in the ground. It had been.

  In addition, organic waste other than the above is a litter laid on the floor of a container or vehicle when transporting or transporting horses, cattle or pigs. In addition, since horses and the like defecate directly on the mattress, it is necessary to dispose of feces and urine together with the mattress. However, microorganisms and other germs breed on such a litter, so when incinerated in an incinerator, some of the microorganisms and germs are not killed and are released into the atmosphere along with smoke. May remain in incineration ash.

  Furthermore, as organic waste other than the above, used bandages, cotton, diapers, sheets, and other medical waste such as hospitals and other medical institutions and their medical sites and nursing facilities such as geriatric health facilities There is. These are collected by specialists, but if the collected materials are incinerated as they are in an incinerator, pathogens, germs, viruses, etc. are released into the atmosphere as in the case of litter, or in incineration ash Therefore, it is necessary to disinfect and sterilize before incineration.

  However, recently, from the viewpoint of protecting the global environment, there has been a strong wind perception of incineration of organic waste in an incinerator, and incineration of waste plastics in an incinerator can cause damage to the incinerator or harmful substances such as dioxins. Therefore, incineration with an incinerator is strictly regulated by laws and regulations.

  For this reason, methods and devices for disposal of organic waste by methods other than incineration using an incinerator have been developed. For example, high-temperature and high-pressure steam, subcritical water, or supercritical water can be used. The processing system, the processing method, or the processing apparatus using the hydrothermal reaction used are, for example, Japanese Patent No. 3832587 (Patent Document 1), Japanese Patent Application Laid-Open No. 10-147661 (Patent Document 2), and Japanese Patent No. 3440835 (Patent Document). Document 3) and / or Japanese Patent Application Laid-Open No. 2004-290819 (Patent Document 4), respectively.

  The system disclosed in Patent Document 1 is for processing waste and other general materials so that they can be reused as a heat-generating molded body in a high-temperature and high-pressure environment. When the pressure vessel is opened, internal gas and vapors are released to the outside, so if pathogens, microorganisms, germs, etc. remain, they may be diffused into the atmosphere. There was room for. In addition, the decomposition method and apparatus disclosed in Patent Document 2 also uses hydrothermal reaction to decompose hardly decomposable waste at a temperature lower than the critical pressure. There was a problem that became complicated. Furthermore, the organic waste processing method disclosed in Patent Document 3 is a method of oxidizing in high-temperature and high-pressure steam set to a temperature higher than the supercritical temperature of water and lower than the supercritical pressure. Since the pressure is as high as 500 ° C. or higher and 5 MPa to 22 MPa, there is a problem that it is difficult to develop an apparatus capable of withstanding it and costs high. Next, the high-temperature and high-pressure treatment device disclosed in Patent Document 4 continuously oxidizes organic waste in the state of supercritical water or subcritical water. Since the critical water treatment conditions are a temperature of 250 ° C. or higher and a treatment pressure of 5 to 10 MPa, it is difficult to develop an apparatus for continuous oxidation treatment under these conditions, and there is a problem that costs are excessive.

  In addition, the inventions disclosed in Patent Documents 1 to 4 are common in that organic waste is decomposed using a hydrothermal reaction, but pathogens, microorganisms, and germs are attached to the organic waste. However, measures against cases of breeding have not been taken sufficiently, for example, microorganisms and germs that have propagated on the litter are not verified until sterilization or sterilization of pathogens attached to medical waste, The device configuration is not such that they do not diffuse into the atmosphere.

Japanese Patent No. 3832587 JP-A-10-147762 Japanese Patent No. 3440835 JP 2004-290819 A

  In view of the above-mentioned problems in conventional organic waste treatment apparatuses, the present invention is directed to microorganisms that propagate or adhere to organic waste, particularly litter, medical waste, etc. It is an object of the present invention to provide an unprecedented new organic waste processing apparatus which can be disposed of after sterilization or detoxification by sterilizing or killing pathogenic bacteria.

  The configuration of the processing apparatus of the present invention, which has been made for the purpose of solving the above-mentioned problems, hydrolyzes and carbonizes organic waste in a pressure-resistant container while stirring it in a high-temperature and high-pressure environment. A waste processing apparatus for processing, a steam supply means for supplying high-temperature saturated steam into the container, a temperature adjusting means for adjusting the temperature in the container, and a pressure in the container Pressure adjusting means for adjusting by an on-off valve, steam discharging means for forcibly discharging water vapor generated in the container, and a shaft penetrating the container to stir the charged waste in the container. Provided with a stirring means, the temperature in the container is adjusted to 220 to 260 ° C. by the temperature adjusting means, the pressure in the container is adjusted to 2 to 3 MPa by the pressure adjusting means, and high temperature is generated by the steam supply means. By supplying saturated water vapor and stirring the organic waste, the treatment is performed by drying the water vapor while forcibly discharging the water vapor in the container, and after the treatment, The treated organic waste is discharged by adjusting the pressure below atmospheric pressure.

  Further, in the above-described configuration, the present invention is configured such that, in the stirring means, a screw blade is provided on the shaft for stirring, or the screw blade is used while being rotated forward and backward at 20 to 40 rotations / minute. Or further comprising a first drying means for promoting drying in the treatment, or after the treatment, when the pressure in the container is adjusted to an atmospheric pressure or lower by the pressure adjusting means, after the adjustment, It can be set as the structure further equipped with the 2nd drying means for drying the processed said organic waste.

  Organic waste to be treated by the apparatus of the present invention includes used litter and / or medical waste, meat such as vegetables, fish residues and unsold lunches, wrapping paper, cardboard And plastics such as plastic containers and bags, plastic bottles, polystyrene foam, wood pieces, felled trees, grasses, medical waste, sludge or livestock waste.

  Here, the processing principle of the apparatus according to the present invention will be described. The apparatus of the present invention is a high-temperature / high-pressure sterilization apparatus, but the processing target is made of organic waste such as litter and medical waste that can be easily decomposed. Since it is limited and sterilized and detoxified, treatment under supercritical water conditions is not necessary, and hydrothermal reaction under subcritical water conditions is sufficient. In the process, the process is performed under subcritical conditions by supplying saturated water vapor into the apparatus. That is, the treatment is performed in high temperature / high pressure water. In general, water is characterized by a high degree of dissociation and a large dielectric constant, but water at normal temperature exhibits properties such as acidity and alkalinity depending on the concentration of hydrogen ions. A reaction in which hydrogen ions and hydroxide ions of water itself react to decompose a substance is known as hydrolysis. Bonds sandwiching oxygen in both inorganic and organic compounds, ester and ether bonds in organic compounds, and oxides in inorganic compounds are decomposed by water with hydroxides as bridges.

  In a high temperature / high pressure state, the degree of water dissociation proceeds with increasing temperature, reaches a maximum at around 250 ° C., and then decreases. This means that the properties of water as an acid or alkali are greatly affected by changes in temperature. That is, under the subcritical saturation vapor pressure, the dissociation degree of water is large, so that the acid / alkali property is strong and the reaction active solvent is obtained. Therefore, in subcritical water, a hydrolysis reaction occurs due to reactive water molecules, and the reaction becomes most intense at around 300 ° C.

  In addition, since the saturated vapor pressure is a state in which the gas phase and the liquid phase are mixed, priority is given to the hydrolysis reaction in the liquid phase and the dehydration condensation reaction in the gas phase. In general, it is said that acceleration of ion reaction and hydrolysis reaction is prioritized in the liquid phase under subcritical saturation vapor pressure, and radical reaction is prioritized in the gas phase. Such a reaction with subcritical water or supercritical water is known as a hydrothermal reaction.

  As described above, the apparatus of the present invention utilizes a hydrothermal reaction under a subcritical saturated vapor pressure and does not discharge internal air before the treatment. Therefore, the treatment is performed in the presence of oxygen, but in the low temperature range of about 220 ° C., an oxidation reaction is accompanied by the presence of oxygen. Although the oxidation reaction takes away electrons, generally, when water is used as a medium, it is easier to exchange electrons. Such an oxidation reaction under hydrothermal conditions is known as a hydrothermal oxidation reaction.

  The apparatus according to the present invention mainly deals with litter and medical waste that are easily decomposed among organic wastes, but can also treat waste plastics and the like. Major waste plastics such as polyolefin, polystyrene, and polyvinyl chloride generally exhibit temperature-dependent thermal decomposability. However, the thermal stability of these plastics is known to increase in the order of polyvinyl chloride, polystyrene, and polyolefin, and the volatility in vacuum is known to be extremely low at about 200 ° C. Even in the treatment, the thermal decomposition is considered to contribute little. In the apparatus of the present invention, hydrolysis reaction and ion reaction in the liquid phase, dehydration condensation reaction, radical reaction, thermal decomposition in the gas phase from the reaction mechanism in subcritical water as described above under the subcritical water condition at 220 ° C. It is estimated that waste plastics are decomposed by hydrothermal oxidation. Moreover, a processing residue is estimated to be undecomposed waste plastic. Such decomposition products are discharged from the apparatus of the present invention together with steam, dust and the like are separated through a cyclone, and most of the remaining steam is cooled and liquefied by gas-liquid contact with cooling water by an ejector, and microorganisms Treatment and wastewater treatment with activated carbon. In addition, undecomposed matter in the surplus gas is subjected to secondary treatment and discharged.

  The device of the present invention is mainly used for organic waste, such as litter and medical waste, which is easily decomposed, and uses hydrothermal reaction under subcritical water conditions. There is an effect that it is easy. In addition, since the device of the present invention can sterilize and kill microorganisms and other germs that are propagated on the litter by a hydrothermal oxidation reaction under high temperature and high pressure conditions using water vapor, In addition, it is possible to obtain a special effect that waste that can only be treated after disinfection or sterilization treatment can be easily treated.

  In addition, since the apparatus of the present invention performs processing such as decomposition in a sealed container, an effect is obtained that odors are not diffused to the outside even during processing, such as garbage and livestock waste.

It is sectional drawing of the organic waste processing apparatus of an example of this invention.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an organic waste treatment apparatus according to an example of the present invention. In FIG. 1, reference numeral 1 denotes a heat-resistant pressure-resistant container, which is a container that can withstand an internal temperature of 600 ° C. and an internal pressure of about 5 MPa. Reference numeral 2 denotes a waste input port for supplying organic waste into the container 1, and 3 denotes an organic waste to be input to the waste input port 2 while maintaining the confidentiality of the heat and pressure resistant container 1. It is a device that is put into the container 1. Reference numeral 4 denotes an outlet for the carbide after the waste treatment, and reference numeral 5 denotes a processed storage section for temporarily storing the carbide extracted from the outlet 4 while maintaining the confidentiality of the heat and pressure resistant container 1.

  Incidentally, the heat and pressure resistant container 1 may be of any material as long as it can withstand an internal temperature of 600 ° C. and an internal pressure of 5 MPa, and the layer structure of the container may adopt a single structure or a double structure as appropriate. . Further, the shape of the waste input port 2, the waste input device 3, the outlet 4, and the treated storage portion 5 is not particularly limited.

  Reference numeral 6 denotes a screw blade as stirring means provided in the heat and pressure resistant container 1, which is attached to a shaft 7 provided penetrating in the container 1 and rotated by a motor 8. The waste thrown into the heat and pressure resistant container 1 is agitated by the screw blades 6 and can be moved back and forth in the container 1 by forward / reverse rotation control of the motor 8. Incidentally, the blade shape of the screw blade 6 and the motor 8 are not particularly limited.

  Reference numeral 9 denotes a steam supply device, which supplies the high-temperature saturated steam generated here into the heat-resistant pressure-resistant container 1 through the supply pipe 9a. A pressure adjusting device 10 is connected to the heat and pressure resistant container 1 by a connecting pipe 10a, and the pressure in the container 1 is adjusted by an on-off valve (not shown) to be adjusted to a predetermined pressure. Note that the on / off valve may be manually opened or closed, and in the case of automatic opening / closing, any method may be employed for communication with the central control device 17 described later or wiring by radio.

  Reference numeral 11 denotes a temperature adjusting device for adjusting the temperature in the heat and pressure resistant container 1 to a desired temperature. Here, a heating coil 11a is provided around the heat resistant and pressure resistant container 1 so as to energize the heating coil 11a. By controlling, the temperature in the container 1 is controlled. The temperature adjustment in the heat and pressure resistant container 1 may be performed by combustion heating with gas in addition to the heating coil 11a.

  A cyclone 12 is connected to the heat-resistant pressure-resistant container 1 via the on-off valve 12a, takes out surplus gas generated by the decomposition of the organic waste, separates dust and the like, and the remaining gas and steam are cooled in the ejector 13 with cooling water. Most of the liquid is cooled and liquefied by gas-liquid contact with microbial treatment, and wastewater is treated with activated carbon. Reference numeral 14 denotes a forced discharge device for forcibly discharging water vapor in the heat and pressure resistant container 1.

  A pressure sensor 15 and a temperature sensor 16 monitor the pressure and temperature in the heat and pressure resistant container 1 during the treatment of the organic waste. Reference numeral 17 denotes a central control unit. Based on the pressure and temperature measurement results of the pressure sensor 15 and the temperature sensor 16, all devices provided in the heat-resistant pressure-resistant container 1 by the control signal cable, that is, the waste inlet 2 The organic waste storage and input device 3 provided in the container, the waste storage and storage unit 5 provided in the outlet 4, the motor 8 for rotating the screw blades 6, and the hot heat and pressure resistant container 1 are filled with high-temperature saturated steam. A steam supply device 9 for supplying, a pressure adjusting device 10 for adjusting the pressure in the heat and pressure resistant container 1, a temperature adjusting device 11 for adjusting the temperature in the heat and pressure resistant container 1, an on-off valve 12a, and a water pressure and pressure resistant container for generating steam during drying. 1 to control the operation of the forced discharge device 14 for discharging to the outside.

  In the device of the present invention, the temperature in the heat and pressure vessel 1 is adjusted to 220 to 260 ° C. and the pressure is adjusted to 2 to 3 MPa while controlling the operation of each device by the central control device 17, and the screw blade 6 is rotated. Then, the organic waste is dried by stirring in the container 1 to hydrolyze the organic waste, and is thermally decomposed and carbonized for treatment. In addition, although the water vapor | steam generate | occur | produced by the forced discharge apparatus 14 is discharge | released out of the heat-resistant pressure-resistant container 1 at the time of drying, the pressure inside the container 1 is made not to become lower than 2-3 MPa by the pressure regulator 10. If the pressure is not within 2 to 3 MPa, treatments such as hydrolysis, thermal decomposition and carbonization will not be successful.

  Incidentally, about the stirring using the screw blade 6 in the said process, a rotational speed is 20-40 rotation / min and forward / reverse rotation is desirable. The reason for adopting the forward / reverse rotation is to distribute the wastes uniformly. Moreover, as a reason for setting the rotation speed to 20 to 40 rotations / minute, if the rotation speed is less than 20 rotations / minute, the processing is not sufficiently performed, and even if the rotation speed is higher than 40 rotations / minute, the processing efficiency is increased. is not.

  And the drying in the said process is fully established only by stirring with the screw blade 6. However, depending on the waste, the moisture content is high, and there is a possibility that thermal decomposition and carbonization are not sufficiently performed. A drying means (not shown, hereinafter referred to as “first drying means”) for promoting the drying may be provided. About the 1st drying means, if it is a grade which does not change the set temperature and pressure (220-260 degreeC, about 2-3 MPa) in the heat-resistant pressure-resistant container 1 at the time of use, about drying methods, various methods (for example, continuous) are suitably used. Alternatively, an intermittent drying gas flow) may be employed, and the gas used for drying may be air or an inert gas such as nitrogen. In addition, the first drying means can be installed directly on the heat-resistant pressure-resistant vessel 1, or any means such as through a pipe can be adopted. The on-off valve can be used promptly to use or not use the first drying means. Any open / close means such as an open / close cock may be provided between the first drying means and the heat and pressure resistant container 1. The first drying means and the opening / closing means may be used by being connected to the central controller 17 or may be used independently without being connected.

  Since the pressure in the heat and pressure resistant container 1 is increased by the gas generated during the treatment of the organic waste, the pressure is also adjusted by adjusting the opening / closing of the on-off valve 12a and taking out the excess gas outside the container 1. . When taking out, dust etc. are isolate | separated via the cyclone 12. As shown in FIG.

  In addition, when the residue (waste) is taken out from the outlet 4 to the treated reservoir 5 after the organic waste is processed by the pressure adjusting device 10, the pressure in the heat and pressure resistant container 1 is reduced to the atmospheric pressure or lower. Adjust so that If this is not done, water vapor and gas in the heat-resistant pressure-resistant container 1 will be released into the atmosphere at once, and if microorganisms and pathogens remain in the treated residue without being killed, they will also be released into the atmosphere together Because it will be done. When taking out the residue (waste) from the outlet 4 to the treated reservoir 5 after processing the organic waste, the apparatus according to the present invention is sufficient only by adjusting the pressure of the heat and pressure resistant container 1, that is, returning it to atmospheric pressure or less. Is established. At this point, the waste has been carbonized, and in principle it seems that moisture has been removed. However, when organic waste (eg, sludge) that originally has a high water content is used, even if treatments such as hydrolysis, thermal decomposition, and carbonization are performed by the stirring means (and the first drying means), the residual waste that has been treated. When removing an object, there may be a slight moisture remaining in the waste or an odor. Therefore, a drying means for drying the waste (not shown; a means different from the first drying means, hereinafter referred to as “second drying means”) may be provided.

  As the second drying means, a known product may be used. Incidentally, about the installation place of a 2nd drying means, what is necessary is just to install in the piping which connected the extraction port 4 and the processed storage part 5, or the processed storage part 5 via arbitrary piping. The piping is provided with opening / closing means such as an opening / closing valve and an opening / closing cock. The opening / closing means may be an automatic method or a manual method, but an automatic method is desirable. As described above, the drying of the waste is performed after the hydrolysis, thermal decomposition, and carbonization treatment, and after the pressure in the heat and pressure resistant container 1 is reduced to atmospheric pressure (1 Pa) or less.

  In the second drying means, dry air is used for the drying. The temperature of the dry air is about 100 to 350 ° C. The pressure of dry air is preferably about 0.1 to 1 MPa. When the pressure is 0.1 MPa or less, the moisture content of the waste does not decrease. And although the amount of capital investment increases even if it is 1 MPa or more, although the effect of reducing the drying time is small, and the moisture content of the waste in the heat-resistant pressure-resistant container 1 or the treated storage part 5 decreases, Hydrolysis performance of general waste is not necessarily improved, and degradation at high temperatures is a concern when considering the reuse of hydrolyzed (including pyrolysis and carbonization) waste (eg fertilizer and fuel) Therefore it is not appropriate. Next, although it is holding (maintenance) time in the heat-resistant pressure-resistant container 1 or the processed storage part 5 of dry air, 1 minute-5 minutes are desirable. If the holding (maintaining) time is 1 minute or less, the pressure of the dry air is not stable. Further, when the holding (maintenance) time is 5 minutes or more, the drying efficiency does not increase so much even if the pressure of the drying air is stabilized.

  The temperature adjusting device 11 is for adjusting the temperature in the heat and pressure resistant container 1 to 220 ° C. or higher (up to about 260 ° C.) at a desired pressure (2 to 3 MPa). When the temperature is lowered, the heating coil 11a is energized and heated. However, when the temperature becomes too high, the supply of high-temperature saturated steam from the steam supply device 9 is restricted or the steam is forced to be externally discharged by the forced discharge device 14. Adjust it by releasing it.

  As mentioned above, although embodiment which concerns on this invention apparatus was described, the said embodiment is an example to the last, and if it does not deviate from the range of the matter described in the specification concerning this invention, a claim, and drawing, it will be various. It is possible to take an aspect (form).

  The embodiment described above will be further described with reference to examples. The following examples are also merely examples, and various modes (forms) can be adopted without departing from the scope of matters described in the specification, claims, and drawings of the present invention. I will tell you that there is. Moreover, it demonstrates using the apparatus and code | symbol as described in FIG. 1 as needed.

  [Embodiment 1] By using the apparatus of the present invention, a litter in which about 3 tons of microorganisms are actually propagated is put into a heat and pressure resistant container 1, the pressure in the container 1 is set to 3 MPa, the temperature is set to 230 ° C, and the screw blade 6 was processed while rotating in the forward and reverse directions at a speed of about 36 revolutions per minute, and all the carbonization could be performed in about 30 minutes. Moreover, when the residue in the processed storage part 5 of the waste taken out from the outlet 4 was examined, no microorganisms or germs were detected.

  [Example 2] Similarly, using the apparatus of the present invention, organic medical wastes such as bandages, cotton, sheets, etc. that have been handed over from a collector, heat-resistant waste containing inorganic substances such as injection needles, etc. When the pressure in the pressure vessel 1 is set, the pressure in the vessel 1 is 3 MPa, the temperature is 260 ° C., and the screw blade 6 is processed while rotating forward and backward at a speed of about 36 rotations for 1 minute, the injection needle takes about 40 minutes. Except for all other carbonization could be done. Moreover, when the residue in the processed storage part 5 of the waste taken out from the outlet 4 was examined, no pathogenic bacteria were detected, and no pathogenic bacteria were detected from the remaining injection needles.

  [Embodiment 3] Further, in the apparatus of the present invention, for food waste such as meat, vegetables and fish and unsold box lunches, and for paper such as wrapping paper and paper waste, cardboard, Plastics such as plastic containers, bags, plastic bottles, and polystyrene were also put in the heat and pressure resistant container 1 and tested, but almost all can be disassembled. Combustible gases and liquids such as methane, ethylene, and propylene were recovered as fuel gas and fuel oil.

  [Embodiment 4] The apparatus of the present invention can also treat wood pieces, felled trees, grass, sludge, and livestock waste, and the pressure in the container 1 is 3 MPa and the temperature is 260 ° C. In addition, when the screw blades 6 were processed while rotating forward and backward at a speed of about 36 rotations per minute, most of them could be decomposed without generating bad odors. Since there was no substance at all, it was confirmed that it was safe to dispose of it directly in the soil.

  The organic waste processing apparatus of the present invention sterilizes or sterilizes medical waste to which litter and pathogens that have been propagated with microorganisms and germs, which have been difficult to dispose of, are sterilized. It can be decomposed and disposed of at the same time, and other garbage, livestock waste, sludge and the like can be decomposed and carbonized without releasing bad odor, which is extremely useful. In addition, since the apparatus of the present invention can be disposed of by disassembling or disposing of waste plastics without burning, it can be said that the apparatus is safe without generating harmful substances such as dioxin accompanying combustion.

DESCRIPTION OF SYMBOLS 1 Heat-resistant pressure-resistant container 2 Waste input port 3 Waste input device 4 Outlet 5 Processed storage part 6 Screw blade 9 Steam supply device 10 Pressure control device 11 Temperature control device 11a Heating coil 12 Cyclone 12a On-off valve 14 Forced discharge of water vapor Device 15 Pressure sensor 16 Temperature sensor 17 Central controller

Claims (8)

A waste treatment apparatus that hydrolyzes and carbonizes and treats organic waste in a pressure vessel while stirring it in a high-temperature and high-pressure environment.
Water vapor supply means for supplying high-temperature saturated water vapor into the container;
Temperature adjusting means for adjusting the temperature in the container;
Pressure adjusting means for adjusting the pressure in the container by an on-off valve;
Water vapor discharging means for forcibly discharging water vapor generated in the container;
In order to stir the thrown-in waste in the container, the shaft includes a stirring means provided through the container,
The temperature in the container is adjusted to 220 to 260 ° C. by the temperature adjusting means, the pressure in the container is adjusted to 2 to 3 MPa by the pressure adjusting means, high-temperature saturated steam is supplied by the steam supply means, In addition, the organic waste is stirred to dry the water vapor in the container while forcibly discharging the water, and after the treatment, the pressure in the container is reduced to an atmospheric pressure or less by the pressure adjusting means. An organic waste processing apparatus characterized by adjusting and discharging the processed organic waste.   The organic waste processing apparatus according to claim 1, wherein the organic waste is used litter.   The organic waste includes medical waste, food residue such as meat, vegetables or fish, raw garbage such as unsold lunches, paper such as wrapping paper and cardboard, plastic containers and bags, PET bottles, polystyrene foam, etc. The organic waste processing apparatus according to claim 1, wherein the apparatus is any one of plastics, wood pieces, felled trees, or grass.   The organic waste processing apparatus according to any one of claims 1 to 3, wherein the organic waste is sludge or livestock waste.   The organic waste processing apparatus according to any one of claims 1 to 4, wherein in the stirring means, a screw blade is provided on the shaft for stirring.   6. The organic waste treatment apparatus according to claim 5, wherein the screw blade is used while being rotated forward and reverse at 20 to 40 revolutions / minute.   Furthermore, the organic waste processing apparatus of any one of Claim 1 thru | or 6 provided with the 1st drying means for promoting the drying in the said process. After the treatment, when the pressure in the container is adjusted to an atmospheric pressure or lower by the pressure adjustment means, the apparatus further comprises second drying means for drying the treated organic waste after the adjustment. The organic waste treatment apparatus according to any one of claims 1 to 7, wherein the second drying means supplies the dry air by changing the pressure and time of the dry air in pulses.

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