WO2008038361A1 - système d'élimination des déchets organiques - Google Patents
système d'élimination des déchets organiques Download PDFInfo
- Publication number
- WO2008038361A1 WO2008038361A1 PCT/JP2006/319269 JP2006319269W WO2008038361A1 WO 2008038361 A1 WO2008038361 A1 WO 2008038361A1 JP 2006319269 W JP2006319269 W JP 2006319269W WO 2008038361 A1 WO2008038361 A1 WO 2008038361A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste
- pressure
- container
- organic waste
- treatment system
- Prior art date
Links
- 239000010815 organic waste Substances 0.000 title claims abstract description 47
- 239000002699 waste material Substances 0.000 claims abstract description 123
- 238000011282 treatment Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 239000002440 industrial waste Substances 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 239000000446 fuel Substances 0.000 claims description 24
- 241001465754 Metazoa Species 0.000 claims description 19
- 239000003337 fertilizer Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000010813 municipal solid waste Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 210000003608 fece Anatomy 0.000 claims description 7
- 239000010794 food waste Substances 0.000 claims description 7
- 239000010893 paper waste Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000010868 animal carcass Substances 0.000 claims description 6
- 239000010871 livestock manure Substances 0.000 claims description 6
- 239000002910 solid waste Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000010791 domestic waste Substances 0.000 claims description 5
- 208000015181 infectious disease Diseases 0.000 claims description 5
- 230000002458 infectious effect Effects 0.000 claims description 5
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- 238000000465 moulding Methods 0.000 claims description 4
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- 238000001035 drying Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 239000002916 wood waste Substances 0.000 claims description 3
- 101001012040 Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) Immunomodulating metalloprotease Proteins 0.000 claims description 2
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 11
- 238000000354 decomposition reaction Methods 0.000 abstract description 9
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- 241000196324 Embryophyta Species 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- -1 hydrogen ions Chemical class 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 244000052769 pathogen Species 0.000 description 5
- 235000014102 seafood Nutrition 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 235000013372 meat Nutrition 0.000 description 4
- 239000002906 medical waste Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010494 dissociation reaction Methods 0.000 description 3
- 230000005593 dissociations Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 244000144972 livestock Species 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
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- 229920002223 polystyrene Polymers 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
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- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000013502 plastic waste Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000007348 radical reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000283086 Equidae Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
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- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Chemical group CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000010781 infectious medical waste Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000021156 lunch Nutrition 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
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- 230000001590 oxidative effect Effects 0.000 description 1
- 229940095674 pellet product Drugs 0.000 description 1
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- 229920006327 polystyrene foam Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- 210000002700 urine Anatomy 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Definitions
- the present invention treats not only industrial waste including sludge and waste plastics, but also general waste generated from households and general affairs, such as decomposition by hydrothermal reaction under subcritical water conditions.
- the present invention relates to a system for treating organic waste that can be taken out and processed waste can be taken out in a dry state, sorted and reused.
- wastes to be treated are separated in advance, and each waste is put into a treatment device designed according to the type of the separated waste, and processed!
- waste plastics are used for processing equipment dedicated to plastics
- rubbers such as waste tires are used for processing only for rubber
- waste paper and waste paper are used for processing paper
- garbage is used exclusively for garbage. I put it in the processing unit and processed it!
- waste paper is incinerated in an incinerator, waste newspaper is dissolved in a special solvent and recycled, waste plastics and waste rubber are Remelted into structural materials, pyrolyzed into solid fuel or liquid fuel, and garbage was dried into fertilizer and animal feed.
- Patent Document 1 discloses an apparatus power for solidifying and processing plastic waste.
- Patent Document 2 describes an apparatus for processing waste plastic into fuel, while Patent Document 3 describes a fertilizer.
- Patent Document 4 discloses a treatment system for heat treatment of medical waste and an apparatus therefor.
- metal plates and plastic plates protected by plastic metal plates and plastic plates laminated with electric wires and rubber sheets, plates to which nails are struck, metal panels, pins and gears are incorporated into plastic
- plastic metal plates and plastic plates laminated with electric wires and rubber sheets, plates to which nails are struck, metal panels, pins and gears are incorporated into plastic
- books such as products and books that use synthetic paper a lot, and there is a problem that if these are processed by the above processing device, the device will be broken.
- the above-mentioned composite materials are usually not capable of being collected as non-burnable waste.
- waste collected as burnable waste many are not suitable for incineration in an incinerator.
- animal carcasses, animal manure, food residues, rotten seafood and agricultural products have had the problem of burning bad odors around them when incinerated.
- infectious wastes such as hospitals, specifically medical institutions such as hospitals, used bandages from the medical field, cotton, diapers, and sheets. These are the power collected by specialists. If the collected materials are incinerated as they are in an incinerator, pathogens, germs, viruses, etc. may be released into the atmosphere or remain in the incineration ash. It was necessary to disinfect and sterilize before.
- Patent Document 5 The inventor of the present invention has previously developed a method and apparatus for this purpose and has already filed a patent application (Patent Document 5). Also special Similar methods and devices are proposed in Permitted Document 6, Patent Document 7, and Patent Document 8
- Patent Document 5 is an excellent system for treating 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.
- the pressure vessel is opened after treatment, internal gas or vapor will be released to the outside, and if pathogenic bacteria, microorganisms, germs, etc. remain, they may be diffused into the atmosphere. There was room for improvement in this regard.
- the decomposition treatment method and apparatus disclosed in Patent Document 6 also uses a hydrothermal reaction to decompose hardly decomposable waste at a temperature below the critical pressure. As a result, there is a problem that the apparatus becomes complicated.
- the organic waste treatment method disclosed in Patent Document 7 is a method of oxidizing in high-temperature and high-pressure steam set to be higher than the supercritical temperature of water and lower than the supercritical pressure. Since the temperature is higher than 500 ° C and the pressure is as high as 5MPa to 22MPa, there is a problem that it is difficult to develop a device that can withstand it.
- the high-temperature and high-pressure treatment device disclosed in Patent Document 8 continuously oxidizes organic waste under supercritical water or subcritical water conditions.
- the preferred subcritical water treatment conditions are a temperature of 250 ° C or higher and a treatment pressure of 5 to 10 MPa. Therefore, it is difficult and costly to develop an apparatus for continuous acid treatment under these conditions. There was a problem.
- Patent Documents 5 to 8 decompose the waste using a hydrothermal reaction.
- the inside of the apparatus is kept at room temperature and normal pressure.
- the water vapor returned to the water and the treated waste started to drain, making it difficult to extract the equipment power.
- it has to be dried again, resulting in a problem of excessive costs.
- Patent Document 1 JP-A-2005-178327
- Patent Document 2 JP-A-6-91649
- Patent Document 3 Japanese Patent Application Laid-Open No. 2004-262720
- Patent Document 4 Japanese Patent Laid-Open No. 2002-102819
- Patent Document 5 Japanese Unexamined Patent Application Publication No. 2004-321855
- Patent Document 6 Japanese Patent Laid-Open No. 10-147662
- Patent Document 7 Japanese Patent No. 3440835
- Patent Document 8 Japanese Patent Application Laid-Open No. 2004-290819
- the present invention comes from households and general offices as well as industrial waste including sludge and waste plastics.
- Organic waste that can be decomposed by hydrothermal reaction under subcritical water conditions, and waste that has been treated can be taken out, sorted, and reused It is an object of the present invention to provide a processing system.
- the configuration of the organic waste treatment system of the present invention aimed at solving the above-mentioned problems is that the organic waste is stirred in a high-pressure, high-pressure environment in a double-walled pressure-resistant container.
- steam supply means for supplying high-temperature saturated steam into the container, and pressure for adjusting the pressure in the container by an on-off valve
- at least stirring means provided with a shaft penetrating through the container for stirring the charged waste in the container, and the temperature of the waste is set to 230 ° C or higher.
- Step of discharging, by the type and sorting the discharged treated wastes is characterized in that it has fertilizers, feed, the step of forming at least one of the auxiliary fuel, the
- the present invention has a configuration in which the forced exhaust means for forcibly discharging the steam is provided in the above configuration, and the steam generated during the drying is also discharged outside the pressure vessel, and the gas turbine is operated by the discharged steam.
- the power can be generated by the power.
- the dry state of the treated waste can be maintained in a gap between the outer wall and the inner wall of the double wall of the pressure vessel. It is desirable to perform a configuration in which water vapor is supplied, the temperature in the gap is maintained at 160 to 180 ° C., and the pressure is maintained at IMPa.
- Wastes to be treated by the system of the present invention include sludge, waste plastics, paper scraps, wood chips, animal solid waste, animal and plant residues, animal manure, animal carcasses, and special infectious management industries. Examples include at least one industrial waste, and business-related general waste
- the auxiliary fuel is formed in the form of powder or pellets.
- the incinerated ash after using these auxiliary fuels can be molded by a molding machine and used as a structural material. it can.
- examples of organic waste that can be treated by the system of the present invention include, for example, used litter, rotten meat and vegetables, seafood residues and unsold food such as bento. , Wrapping paper, corrugated cardboard, plastic containers and bags, plastic bottles, polystyrene, and other plastics, lumber, grass, or wastewater collected in sewers and rivers. Examples include finished sludge and livestock waste.
- the system of the present invention is a high-temperature 'high-pressure sterilization apparatus.
- the processing target is limited to organic waste and sterilization / detoxification processing is performed.
- a hydrothermal reaction under subcritical water conditions is sufficient.
- the process is performed under subcritical conditions by supplying saturated water vapor into the equipment. That is, the treatment is performed in high temperature / high pressure water.
- water is characterized by a high degree of dissociation and a large dielectric constant.
- water at normal temperature exhibits properties such as acidity and alkalinity depending on the concentration of hydrogen ions.
- hydrolysis a reaction in which water's own hydrogen ions and hydroxide ions react with each other to decompose the substance is known as hydrolysis.
- Inorganic and organic compounds, oxygen-bonded bonds, organic compounds are ester and ether bonds, and inorganic compounds are decomposed with water by using hydroxides as bridges.
- the system of the present invention utilizes a hydrothermal reaction under a subcritical saturated vapor pressure, and does not discharge internal air before treatment. Therefore, the treatment is performed in the presence of oxygen, but in the low temperature range of about 230 ° C, an oxidation reaction is accompanied by the presence of oxygen.
- the acid-oxidation reaction is a reaction that takes away electrons, but generally it is easier to exchange electrons when water is used as a medium.
- Such an oxidation reaction under hydrothermal conditions is known as a hydrothermal oxidation reaction.
- the system of the present invention can treat waste plastics in addition to litter and medical waste that are easily decomposed among organic wastes.
- the main waste plastics such as polyolefin, polystyrene and polysalt bulb, generally show temperature-dependent thermal decomposability.
- the thermal stability of these plastics is known to increase in the order of polysalt bubul, polystyrene, and polyolefin, and the volatilization rate in vacuum is known to be extremely low at around 200 ° C. It is considered that the contribution of thermal decomposition is low even in the treatment in the system of the present invention.
- the present invention uses a single organic waste treatment system to provide a special treatment of sludge, plastic waste, paper waste, wood waste, animal solid waste, animal and plant residues, animal manure, animal carcass, and infectiousness.
- industrial waste such as managed industrial waste, general waste such as business-related general waste, household waste, infectious specially managed general waste, sorted garbage, food residues, etc.
- hydrothermal reaction it is possible to perform decomposition and other treatments by hydrothermal reaction at the same time, and it is also possible to treat V and composite materials that cannot be separated, so multiple conventional treatment devices according to the type of waste can be used. There is no need for installation, and the processing cost can be reduced.
- microorganisms and other germs breeding on the litter, and pathogens adhering to medical waste are sterilized and killed by a hydrothermal oxidation reaction under high temperature and high pressure conditions using steam. Therefore, it is possible to easily dispose of waste that could not be processed without force by disinfecting or sterilizing treatment in the past!
- the system of the present invention performs processing such as decomposition of organic waste in a sealed container, it can be used for raw garbage, livestock waste, sludge, rotten seafood, meat, agricultural products, and the like. Even if it is, there is an effect that the bad odor is not emitted to the outside during processing.
- the waste to be treated varies depending on the season, time, and time zone. For example, when there are many waste plastics and waste rubber, they can be treated together. At the same time, the treated waste can be taken out from the pressure vessel and reused as auxiliary fuel. If there are a lot of litter, animal solid waste, animal and plant residues, animal manure, animal carcasses, seafood, etc., treat them all together and dispose of the treated waste from the pressure vessel in a dry state. The effect is that it can be taken out and reused as feed or fertilizer.
- FIG. 1 is a cross-sectional view of an example of an organic waste treatment apparatus A in the waste treatment system of the present invention
- FIG. 2 is a block diagram of an example of the waste treatment system of the present invention incorporating the treatment apparatus A of FIG. .
- A is an organic waste treatment which is a main part of the waste treatment system of the present invention.
- 1 is a double-walled heat-resistant pressure vessel constituting the organic waste treatment device A, la is the outer wall of the heat-resistant pressure-resistant vessel 1, and lb is the inner wall.
- a gap k is appropriately formed between the outer wall la and the inner wall lb, and high-temperature steam is supplied to the gap k and circulates as described later.
- the heat-resistant pressure-resistant container 1 is used that can withstand an internal temperature of 600 ° C and an internal pressure of 5 MPa.
- [0034] 2 is a waste input port for introducing waste into the heat and pressure resistant container 1, and 3 is a waste input into the heat and pressure resistant container 1 from the waste input port 2 while maintaining confidentiality. It is a waste input device that stores and inputs at appropriate intervals. 4 is an outlet for treated waste that has been decomposed in the heat and pressure resistant container 1, and 5 is an outlet pipe attached to the outlet 4.
- Reference numeral 6 denotes a screw blade as a stirring means provided in the heat-resistant and pressure-resistant vessel 1, attached to a shaft 7 provided penetrating into 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.
- 9 is a steam generator
- 9a is an in-container steam supply device that supplies the steam generated in the steam generator 9 into the heat-resistant pressure-resistant container 1
- 9b is the steam generated in the steam generator 9.
- This is an in-wall steam supply device that supplies the gap k between the outer wall la and the inner wall lb of the heat-resistant pressure-resistant container 1.
- 10 is a pressure adjusting device, which is connected to the heat and pressure resistant container 1 by a connecting pipe 10a, and adjusts the pressure in the container 1 to a predetermined pressure by adjusting an on-off valve (not shown).
- Is. 11a is a pressure sensor for measuring the pressure in the heat and pressure resistant container 1
- l ib is a pressure sensor for measuring the pressure in the gap k between the outer wall la and the inner wall lb of the heat and pressure resistant container 1.
- 12a is a temperature sensor for measuring the temperature in the heat and pressure resistant container
- 12b is a temperature sensor for measuring the temperature in the gap k between the outer wall la and the inner wall lb of the heat and pressure resistant container 1.
- Reference numeral 13 denotes a cyclone, which is connected to the heat and pressure resistant container 1 through an on-off valve and forcibly sucks and discharges the water vapor generated in the container 1 to the outside of the container 1. At the same time, excess gas generated by the decomposition of organic waste is taken out to separate dust, etc.
- Step 14 the majority of the liquid is cooled by gas-liquid contact with cooling water, and treated with microorganisms and treated with activated carbon.
- 15 is a wastewater treatment facility
- 15a is a flow control tank
- 15b is a flapping tank
- 15c is a discharge tank.
- 16 is a vacuum pump connected to the condenser 14
- 17 is a deodorizing device
- 18 is a cooling tower, which exhausts excess gas Force Cooling tower 18 has a deodorizing function in the room as a scrubber .
- P1 is a cooling pump
- P2 is a drain pump
- h is exhaust
- f is discharge.
- the steam that also discharges the cyclone 13 force is high temperature and high pressure. Therefore, in order to effectively use the steam, a gas turbine GT is provided in front of the condenser 14 and the gas turbine GT is operated. As a result, the generator GE is rotated to generate electricity.
- Reference numeral 19 denotes a central controller of the organic waste treatment apparatus A, which is located in the heat and pressure resistant container 1 by the pressure sensors 11a and lib and the temperature sensors 12a and 12b, and in the gap k between the outer wall la and the inner wall lb. Based on the pressure and temperature measurement results, the control signal cable is used to connect all the devices installed in the heat and pressure resistant container 1, that is, the waste input device 3 provided in the waste input port 2 and the screw blade 6.
- the operation of the on-off valve of the internal steam supply device 9b, the pressure adjustment device 10 for adjusting the pressure in the heat-resistant pressure-resistant vessel 1 and the cyclone 13 is controlled.
- the temperature in the heat and pressure resistant container 1 is set to 230 ° C or higher and the pressure is set to 3 MPa while the operation of each of the above apparatuses is controlled by the central controller 19.
- the central controller 19 By adjusting and rotating the screw blade 6 and stirring the organic waste in this container 1, the organic waste is hydrolyzed and treated by pyrolysis or carbonization.
- the open / close valve of the cyclone 13 is opened to release water vapor generated outside the heat and pressure resistant container 1, but the pressure regulator 10 prevents the pressure in the heat and pressure resistant container 1 from becoming lower than 3MPa.
- the waste is decomposed using the hydrothermal reaction under subcritical water conditions, so that the temperature force in the heat and pressure resistant container 1 is 00 ° C or higher. Adjust so that it does not occur.
- the pressure in the heat and pressure resistant container 1 is Since it is also increased by the gas generated during the treatment of organic waste, the pressure inside the container can be adjusted by opening the on-off valve and taking out excess gas outside the container 1. When taking out, dust etc. are separated through the cyclone 13.
- the pressure in the heat and pressure resistant container 1 is adjusted to be equal to or lower than the atmospheric pressure by the pressure adjusting device 10 described above. In this way, if water vapor or gas in the heat-resistant pressure-resistant container 1 is released into the atmosphere at once, microorganisms or pathogens will not be killed and remain in the treated residue. This is because they are also released into the atmosphere.
- the outer wall la and the inner wall 1 of the heat and pressure resistant container 1 are provided by the in-wall steam supply device 9b so that the treated waste can be taken out from the heat and pressure resistant container 1 in a dry state.
- High-temperature steam is supplied into the gap k of b, and the temperature in the gap k is maintained at 160 to 180 ° C and the pressure is maintained at 1 MPa.
- the pressure in the heat-resistant and pressure-resistant container 1 is adjusted to be equal to or lower than atmospheric pressure, and when the temperature in the container 1 is returned to room temperature, the water vapor in the container 1 is reduced. This is because it becomes water and mixes with the treated waste and becomes muddy.
- the muddy waste is time-consuming to take out from the heat-resistant pressure-resistant container 1 and needs to be dried again when reused, which is not worth the cost.
- the above-mentioned organic waste treatment apparatus A can also treat wood, grass, sludge, and livestock waste that have been cut down from timber, and the pressure in the container 1 is 3 MPa.
- the temperature was set to about 240 ° C and the screw blade 6 was rotated forward and reverse at a speed of about 36 revolutions per minute, most of the odor was not decomposed. Since there are no harmful substances such as dioxin in the undissolved material, it was confirmed that it was safe to dispose of it in the soil.
- the waste pipe 5 attached to the discharge port 4 of the organic waste treatment apparatus A is equipped with a sorting and recycling apparatus B for treated waste.
- 20 is a discharge conveyor connected to the discharge pipe 5
- 21 is a hopper for temporarily storing the processed waste sent from the competitor 20.
- Reference numeral 22 denotes a sorter that sorts the processed waste stored in the hopper 21 according to its properties.
- the sorter 22 determines that the treated waste is suitable for the fertilizer, it is sent to the fertilizer system 24 and stored in the fertilizer storage unit 24 as fertilizer.
- Treated waste suitable for fertilizer is treated with organic waste treatment equipment A, such as sludge, animal solid waste, animal and plant residues, animal manure, carcass, and general waste Household waste, sorted garbage, food residues, etc.
- organic waste treatment equipment A such as sludge, animal solid waste, animal and plant residues, animal manure, carcass, and general waste Household waste, sorted garbage, food residues, etc.
- used litter, rotten meat and vegetables, and seafood residues also fall under this category.
- the sorting machine 22 determines that the treated waste is suitable for the feed, the feed is sent to the feed storage unit 25 and stored as feed.
- Animal-based waste is suitable for feed Examples include solid waste, animal carcasses, animal and plant residues, and sorted garbage.
- the waste is treated with the steam dryer 26, and then passed through the shaker 27, which is an unnecessary solid component.
- Unnecessary solids are also sorted by the sorter 22 and sent to the waste collection unit 28.
- suitable waste for auxiliary fuel include industrial waste represented by waste plastics, paper waste, and wood waste, and general waste other than household waste. Synthetic rubber can be reused as auxiliary fuel.
- the treated waste suitable for the auxiliary fuel is further sieved by the size in the regulator 29, while the powdery one is stored in the powder storage unit 30 as the powdery auxiliary fuel.
- the medium size is sent to the granulator 32 by the conveyor 31, and the shape and size are adjusted to pellets in the process of circulation between this granulator 32 and the next shaker 33. Stored in the storage unit 34.
- Powdered fuel and pellet products used as auxiliary fuel 35 are recovered as incineration ash 36.
- This incineration ash 36 is kneaded as it is or with an appropriate solidifying material, organic binder, or the like.
- This can be put into a molding machine 37 to obtain a desired structural material.
- structural materials include system housing using molding materials 38, replacement of building materials 39, heat generation board 40, and the like.
- Powdered fuel can be used in various forms. For example, by blowing the top force powdered fuel into the tornado from the bottom in a boiler stove, the powdered fuel is completely burned inside. It can be used as a stove, and can also supply hot water as a hot water boiler by exchanging heat from the secondary combustion of the exhaust gas discharged with water. Furthermore, the hot water can be used for floor heating and road heating.
- [0054] 41 is a residue recovery unit that is determined to be unsuitable for fertilizer and fodder in the sorter 22 and cannot be converted to auxiliary fuel.
- the recovered residue is treated industrial waste 42 As a final disposal.
- the organic waste treatment system of the present invention is a kind of waste as in the conventional treatment system. There is no need to prepare a separate treatment device for each type of waste, and industrial waste including sludge and waste plastics as well as general waste from households and general offices is sub-critical water. Since decomposition and other treatments can be performed by hydrothermal reaction under conditions, the effect of reducing the cost of waste treatment can be obtained. In addition, since the treated waste can be taken out in a dry state, it can be sorted as it is and reused as fertilizer, feed and auxiliary fuel, which is extremely economical.
- the treatment system of the present invention is a safe system that does not generate harmful substances such as dioxin because it can be disposed of by disassembling and disposing of waste plastics and waste rubbers without burning. And! /
- FIG. 1 is a cross-sectional view of an example of an organic waste treatment apparatus A in the waste treatment system of the present invention.
- FIG. 2 is a block diagram of an example of the waste treatment system of the present invention in which the treatment apparatus A of FIG. 1 is incorporated. Explanation of symbols
- Double wall pressure sensor a In-container temperature sensor b Double-wall temperature sensor 'cyclone
- Pellet product storage section Use auxiliary fuel Incineration ash
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Fertilizers (AREA)
- Fodder In General (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Treatment Of Sludge (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Coke Industry (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2006534509A JPWO2008038361A1 (ja) | 2006-09-28 | 2006-09-28 | 有機系廃棄物の処理システム |
EP20060798399 EP1990106A1 (en) | 2006-09-28 | 2006-09-28 | Organic waste disposal system |
PCT/JP2006/319269 WO2008038361A1 (fr) | 2006-09-28 | 2006-09-28 | système d'élimination des déchets organiques |
CNA2006800546743A CN101448581A (zh) | 2006-09-28 | 2006-09-28 | 有机类废弃物的处理系统 |
US12/081,866 US20090283397A1 (en) | 2006-09-23 | 2008-04-22 | Organic waste treatment system |
Applications Claiming Priority (1)
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PCT/JP2006/319269 WO2008038361A1 (fr) | 2006-09-28 | 2006-09-28 | système d'élimination des déchets organiques |
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WO2008038361A1 true WO2008038361A1 (fr) | 2008-04-03 |
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PCT/JP2006/319269 WO2008038361A1 (fr) | 2006-09-23 | 2006-09-28 | système d'élimination des déchets organiques |
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US (1) | US20090283397A1 (ja) |
EP (1) | EP1990106A1 (ja) |
JP (1) | JPWO2008038361A1 (ja) |
CN (1) | CN101448581A (ja) |
WO (1) | WO2008038361A1 (ja) |
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Also Published As
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EP1990106A1 (en) | 2008-11-12 |
JPWO2008038361A1 (ja) | 2010-01-28 |
US20090283397A1 (en) | 2009-11-19 |
CN101448581A (zh) | 2009-06-03 |
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