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WO2007086334A1 - Procede de fermentation a sec au methane - Google Patents

Procede de fermentation a sec au methane Download PDF

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Publication number
WO2007086334A1
WO2007086334A1 PCT/JP2007/050882 JP2007050882W WO2007086334A1 WO 2007086334 A1 WO2007086334 A1 WO 2007086334A1 JP 2007050882 W JP2007050882 W JP 2007050882W WO 2007086334 A1 WO2007086334 A1 WO 2007086334A1
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WO
WIPO (PCT)
Prior art keywords
fermentation
methane
dry
methane fermentation
coal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2007/050882
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English (en)
Japanese (ja)
Inventor
Shinzo Ito
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EUREKA ENGINEERING Inc
Original Assignee
EUREKA ENGINEERING Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EUREKA ENGINEERING Inc filed Critical EUREKA ENGINEERING Inc
Priority to JP2007555920A priority Critical patent/JP4523044B2/ja
Publication of WO2007086334A1 publication Critical patent/WO2007086334A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
    • C12M47/14—Drying
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/008—Sludge treatment by fixation or solidification
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • 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
    • Y02E50/10—Biofuels, e.g. bio-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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/59—Biological synthesis; Biological purification

Definitions

  • the present invention relates to dry methane fermentation and wet dry combined methane fermentation for methane fermentation of biomass such as organic waste.
  • Methane fermentation involves wet methane fermentation performed on liquid biomass with a solids ratio (TS concentration) of 10% or less, and solids such as 10% or more, more typically 20% or more.
  • TS concentration solids ratio
  • a dry methane fermentation is known in which methane fermentation is carried out in a non-immersed state without adding water to biomass such as organic waste, which occupies a high proportion.
  • Fermentation residue with high water content (about 95%) generated in wet methane fermentation is separated into solid and liquid using a dehydrator, except that it is used as liquid fertilizer. After being treated, the water is discharged into nearby rivers and sewers.
  • solids or dehydrated cakes are composted and sold in a composting system, or disposed of by landfill incineration.
  • livestock manure, etc. which contains a large amount of persistent organic matter such as rice straw, etc.
  • wet methane fermentation this is the most common
  • There is a limit on the decomposition rate during the fermentation period of about 30 days (40-45%)
  • the fermentation residue still contains a lot of unfermented organic components.
  • the aforementioned dehydrated cake is a biomass rich in organic components.
  • the composting system is a process that converts the organic content of dehydrated cake into CO and H 0 by aerobic fermentation.
  • dry methane fermentation the biomass to be fermented can be processed without diluting, so that the treatment capacity does not increase, and the fermentation waste liquid treatment in which the moisture content of the fermentation residue is low is unnecessary. This allows the entire system to be handled and quickly simplified. Therefore, dry methane fermentation has the advantage of reducing the initial cost compared to wet methane fermentation.
  • dry methane fermentation is a force that has been proven with technology developed in Europe a few decades ago, and is a future technology that still requires technological development, and various proposals have been made.
  • Patent Document 1 Japanese Patent Laid-Open No. 2002-320949 discloses that in order to prevent inhibition of methane fermentation by ammonia or the like, an inorganic porous material is mixed with organic waste, and this is mixed with a methane fermentation tank. A dry methane fermentation method is disclosed.
  • Patent Document 2 Japanese Patent Laid-Open No. 2003-53309 uses anaerobic digested sludge that contains organic solid waste under light irradiation conditions and contains some photosynthetic bacteria together with methane-fermenting microorganisms. An anaerobic digestion process is disclosed. The invention of Patent Document 2 is also intended to reduce the ammonia concentration.
  • Patent Document 3 Japanese Patent Laid-Open No. 2004-188392
  • quick lime is added to the organic waste and alkaline reaction is performed. It is disclosed to perform a response process.
  • the present invention seeks to promote organic waste volume reduction, solubilization and deammonification.
  • Patent Document 4 Japanese Patent Laid-Open No. 2002-52398 discloses carbonization after mixing fibers with methane fermentation sludge. This invention is intended to efficiently process and reuse fermentation residues.
  • Low-grade coal such as low-rank coal (sub-bituminous coal, lignite, lignite) and peat
  • low-grade coal such as low-rank coal (sub-bituminous coal, lignite, lignite) and peat
  • Patent Document 1 Japanese Patent Laid-Open No. 2002-320949
  • Patent Document 2 JP 2003-53309 A
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2004-188392
  • Patent Document 4 Japanese Patent Laid-Open No. 2002-52398
  • Organic waste to be treated in methane fermentation generally has a high water content, and therefore has a very low energy density. Therefore, it is economically disadvantageous to implement methane fermentation from the viewpoint of energy recovery.
  • dry methane fermentation does not require wastewater treatment that consumes a large amount of energy. Can supply to outside).
  • the present invention is easier than the conventional dry methane fermentation methods disclosed in Patent Documents 1 to 4.
  • the purpose of the present invention is to provide a dry methane fermentation method capable of simply performing dry methane fermentation.
  • An object of the present invention is to provide a dry methane fermentation method in which a fermentation residue generated by dry methane fermentation can be efficiently and effectively used as energy.
  • Another object of the present invention is to effectively utilize low-grade coal such as low-coalizing coal (subbituminous coal, lignite, lignite).
  • the present invention provides a method for subjecting a fermentation object (that is, a biomass to be subjected to methane fermentation treatment) to dry methane fermentation, wherein the fermentation object contains low-coalizing coal, and a methane fermentation tank
  • a fermentation object that is, a biomass to be subjected to methane fermentation treatment
  • the fermentation object contains low-coalizing coal
  • a methane fermentation tank The dry methane is characterized in that the pre-fermented product from the mixture is mixed with the fermentation object as seed sludge, the mixture is introduced into the methane fermentation tank, and the total solid concentration in the methane fermentation tank is 25% or more. It is a fermentation method.
  • the ratio of the low-degree coal is preferably 10% with respect to the total amount of the fermentation object.
  • the low-coalized coal includes sub-bituminous coal, lignite, and peat composed solely of lignite.
  • Low-carbon coals with a moisture content of 15% or less (preferably 10% or less) are preferred to be used for lignite and peat, which have a high moisture content, such as dry ones.
  • the fermentation target in the present invention may be only a high water content substance (high water content biomass: water content 70% or more, for example, garbage, dehydrated cake of activated sludge, etc.) and low coal content coal.
  • high water content biomass water content 70% or more, for example, garbage, dehydrated cake of activated sludge, etc.
  • low coal content coal You may contain the low water content substances and fats and oils other than low coal degree coal.
  • the ratio with respect to the total amount of the fermentation object is 3 to 15% by mass.
  • the water content is 15% or less, preferably 10% or less, such as plant biomass, animal biomass, waste oil, and oils.
  • low-coalizing coal for example, subbituminous coal
  • low-coalizing coal also contains fermentation components and has a moisture content. Is less than 15%, and it is a kind of low water content that is the subject of fermentation.
  • the present invention is a method for treating a fermentation object by using both a wet methane fermentation method and a dry methane fermentation method.
  • the main fermentation object is treated by a wet methane fermentation method to obtain a wet
  • the fermentation residue from the fermenter is dehydrated into a dehydrated cake
  • the fermentation target for the dry methane fermentation treatment is mainly the dehydrated cake, and low moisture content coal other than low coal content coal and low coal content coal.
  • the object was achieved by a wet-dry combined methane fermentation method characterized by a total solid concentration of 25% or more.
  • the fermentation residue desorption liquid from the wet methane fermentation tank and the fermentation residue from the dry methane fermentation tank are mixed to form liquid fertilizer.
  • low-carbon coal with a low water content is easily pulverized, and energy required for pulverization is smaller than that of other biomass. Therefore, by using low-carbon coal as the fermentation target in dry methane fermentation, it is easy to adjust the total solids concentration in the methane fermentation tank to 25% or more. In this way, by using low-coalized coal, dry methane fermentation can be achieved without using recyclable materials such as waste paper and fiber.
  • HS hydrogen sulfide
  • the amount of biogas generated can be increased and fermented compared to the dry methane fermentation method using an inorganic porous material as in Patent Document 1.
  • the recovery energy can be increased by improving the decomposition rate of waste, and the volume of waste to be treated can be reduced by improving the decomposition rate.
  • organic waste such as garbage and dewatered sludge from a sewage treatment plant and low-grade coal such as low-carbon charcoal (subbituminous coal, lignite, lignite) are collaborated.
  • low-grade coal such as low-carbon charcoal (subbituminous coal, lignite, lignite)
  • waste processing and low-grade coal can be used simultaneously, and biogas (methane gas) can also be obtained.
  • biogas methane gas
  • low-coalized coal is used in the dry methane fermentation method, and fat and oil are further mixed at a ratio of 3 to 15 mass% with respect to the total amount of the fermentation target.
  • the amount of biogas generated can be increased, and the decomposition rate of the fermentation object can be improved. As a result, it is possible to further increase the recovered energy.
  • the biomass to be fermented can be treated very efficiently, and the fermentation residue from the wet methane fermenter Is used in dry methane fermentation, it eliminates the need for a wastewater treatment plant and a dewatered cake composting plant, which are necessary only for the wet methane fermentation method, and thus the equipment can be made compact.
  • FIG. 1 is a process diagram showing one embodiment of the method of the present invention.
  • FIG. 2 is a process chart showing another embodiment of the method of the present invention.
  • FIG. 3 is a process diagram showing one embodiment of the wet dry combined methane fermentation method of the present invention.
  • the present invention is a method for subjecting a fermentation object to a dry methane fermentation treatment.
  • the fermentation object in the present invention is not particularly limited as long as it is a biomass that can be fermented by methane bacteria.
  • the main treatment target biomass includes, for example, sludge dewatering cakes generated at sewage treatment plants, activated sludge dewatering cakes generated at wastewater treatment plants such as food factories, and wet methane fermentation plants.
  • these dehydrated cakes are hardly decomposable organic wastes having a high nitrogen concentration, but can be efficiently decomposed by the method of the present invention.
  • the low-rank coal in the present invention is low-grade coal such as subbituminous coal, lignite, lignite, and peat. Even low-carbon coals with a moisture content of 15% or less (preferably 10% or less) are preferred, and in the case of high moisture content such as lignite and peat, they are dried and used as a moisture content of 15% or less. To do. Low coal content coal with low water content is crushed and used as pulverized coal. The ratio of low-coalized coal to the total amount of fermentation target is 10-50% by mass. Low-carbonized coal contains organic components that are not almost completely coalified, such as anthracite, so in the present invention, biomass, which is an organic component of low-carbonized coals, is used. Biogas is generated by methane fermentation. It is preferable to dry the fermentation residue and use it as a fuel or cement firing material.
  • the already fermented product from the methane fermentation tank is returned as seed sludge, mixed with all the fermentation objects, and introduced into the methane fermentation tank.
  • the proportion of each fermentation target and seed sludge is determined in advance so that the total solid concentration in the methane fermentation tank is 25% or more.
  • low-carbon coal is used as the fermentation target, so it is easy to adjust the total solids concentration.
  • other low water content substances may be mixed to adjust the total solids concentration.
  • the ratio of the total fermentation target to the seed sludge is preferably about 1: 5 to about 10.
  • the low water content other than the low coal content coal includes organic components capable of methane fermentation, and includes plant biomass and animal biomass having a water content of 15% or less, preferably 10% or less. is there. It also contains fats and oils, such as dried and pulverized activated clay waste (waste clay) and oily plants (peanuts, etc.) used for decolorization in the edible oil refining process. Substances can also be used.
  • rice husks for example, rice husks, dried grass clippings, shredder paper discharged from offices, rice bran, wheat bran, and other by-products in the grain refining process, corn cobs.
  • rice bran, corn cobs and foliage 'stem' leaves dried, rice straw, wheat straw etc. are preferably used after being pulverized.
  • low water content material Only one type of low water content material may be used, but a plurality of types may be used in combination.
  • the main biomass to be treated, low-rank coal, low water content, and seed sludge may all be mixed together.
  • fats and oils may be contained in addition to the main biomass to be treated and low-degree coal. Further, it may contain a low water content other than the low coal content coal. In this case, the ratio of fats and oils to the total amount of fermentation target is 3 to 15% by mass. Fermentation in the methane fermenter will not be successful if the proportion of fat is too much or too little.
  • the fats and oils used in the present invention include vegetable oils obtained from oily plants such as rapeseed and soybean, animal fats and oils such as fish oil, used cooking oils such as used tempura oil, and waste water such as restaurants. Grease trap oil scum, restaurant kitchen exhaust hood scattered oil drainage, by-product oil soot produced in the edible oil refining process, mineral oil modified to the same properties as edible oils, etc. There is.
  • FIG. 1 is a process diagram showing an embodiment of the method of the present invention.
  • garbage high water content biomass
  • corn cobs and foliage dried and ground were used as the low water-containing biomass 13 of the fermentation object 10.
  • Sub-bituminous coal was used as the low-coalized coal 14 of the fermentation objects 10.
  • sub-bituminous coal is pulverized to a suitable size that can be fermented by a pulverizer 7.
  • the garbage 11, the corn cobs and foliage 13 and the fine carbonized fine subbituminous coal 14 are mixed in the impregnation apparatus 1.
  • the low-carbonized coal 14 has a ratio of 10 to 50% by mass with respect to the total amount of the fermentation object 10, and the supply ratio of each raw material so that the total solid concentration in the methane fermentation tank 3 is 25% or more. And the ratio with seed sludge is selected.
  • the biogas generated in the dry methane fermentation tank 3 is stored in a gas holder in a nano gas storage and supply system 4, is pressurized by a blower, etc., and is supplied to the cogeneration system 5.
  • the biogas obtained by the method of the present invention has a low concentration of hydrogen sulfide, but preferably after removing H 2 S (hydrogen sulfide) with a desulfurization apparatus, cogeneration is performed.
  • the already fermented product from the dry methane fermenter 3 is mainly returned to the mixing device 2 as seed sludge, and the residue is dried by the drying device 6 to an appropriate moisture content, and then fuel or cement. Use as a fired material.
  • force using subbituminous coal may be used instead of dry lignite or peat.
  • FIG. 2 is a process diagram showing another embodiment of the method of the present invention.
  • the main processing target biomass 11 of the fermentation target 10 is an activated sludge cake.
  • Oil and fat (waste tempura oil) 12 was used as one of the fermentation targets 10.
  • Sub-bituminous coal was used as low-coalized coal 14 out of the fermentation objects 10.
  • subbituminous coal is pulverized to a suitable size that can be fermented by the powder mill 7.
  • the garbage 11, the waste tempura oil 12 and the pulverized carbonized subbituminous coal 14 are mixed in the impregnation / mixing device 1.
  • the ratio of the low-carbonized coal 14 to the total amount of the fermentation object 10 is 10 to 50% by mass, the ratio of the fat 12 to the total amount of the fermentation object 10 is 3 to 15% by mass, Select the supply ratio of each raw material and the ratio of seed sludge so that the total solids concentration is 25% or more.
  • other low water content substances may be mixed as raw materials.
  • the biogas generated in the dry methane fermenter 3 is transferred to the noogas storage 'supply system 4. Stored in a gas holder, increased in pressure with a blower, etc.
  • FIG. 3 is a process diagram showing one embodiment of the wet-dry combined methane fermentation method of the present invention.
  • the dry methane fermentation method in this example is the same as the method described with reference to FIG. 1, and the dehydrated cake (activated sludge cake), which is the residue in the wet methane fermentation method, is used as the main biomass 11 to be treated.
  • Maize cob and foliage are used as low water content 13 other than pre-coal, and low-coalized coal (subbituminous coal) 14 is pulverized by pulverizer 8 and supplied to force impregnation / mixer 1
  • the dry methane fermentation method in this example is the same as the method described with reference to FIG. 1, and the dehydrated cake (activated sludge cake), which is the residue in the wet methane fermentation method, is used as the main biomass 11 to be treated.
  • Maize cob and foliage are used as low water content 13 other than pre-coal, and low-coalized coal (subbituminous coal
  • the wet methane fermentation method is basically similar to the conventional method, and the fermentation target is not particularly limited as long as it is a biomass that has been conventionally treated by wet methane fermentation.
  • livestock manure was used as the biomass 20 to be treated.
  • the foreign matter separation and crushing device 21 removes foreign matter such as stones mixed in livestock manure and crushes it to a suitable size for processing.
  • water is injected and diluted (Hydro 22). This hydrolyzed livestock manure 20 is introduced into a wet methane fermenter 23, and biogas (main component is methane CH) is generated by anaerobic digestion of methane bacteria.
  • biogas main component is methane CH
  • the fermentation residue from the methane fermentation tank 23 is solid-liquid separated by the dehydrator 24.
  • the desorbed liquid from the dehydrator 24 is purified by the wastewater treatment system 25 to a quality suitable for discharge, and part of it is used as water for hydration 22 and the rest is discharged.
  • the solid content from the dehydrator 24, that is, the dehydrated cake is used as the main biomass to be treated in the dry methane fermentation, and is supplied to the dry methane fermentation mixer 2.
  • the biogas generated in the wet methane fermentation tank 23 is sent to the biogas storage and supply system 4.
  • the noogas storage and supply system is available in both wet and dry methane fermenters 23, 3.
  • the produced biogas is stored in a gas holder, pressurized with a blower, etc., and desulfurized with HS
  • the biogas is used as fuel and electricity is generated by the gas engine or fuel cell, and the exhaust heat generated at the same time is used for heating both the wet and dry fermenters 23 and 3. And supplied as heat energy for heating the drying device 6.
  • pseudo-food waste dog food and brown rice crushed and mixed one-to-one, water added to a moisture content of 80%
  • 60 g crushed corn cobs and foliage 37 2g (water content 7%)
  • sub-bituminous coal Pacific coal finely ground
  • 30g water content 5%
  • VS volatile solids: the amount lost by ignition (600 ° C) in the solids, which is an indicator of the organic components in the solids
  • the weight of the glass bottle was measured daily or every two days with an electronic balance.
  • the value obtained by multiplying the difference between the initial weight and the end weight (after 10 days) by 0.9 is defined as the VS decomposition amount (that is, the generated biogas contains water, so 10% of the weight loss is the water content).
  • the value obtained by multiplying the measured weight loss by 0.9 is the actual VS decomposition amount).
  • the weight was reduced by 36.5 g from the initial weight at the end. Therefore, the degradation rate by methane bacteria is (0.9 X weight loss / VS), and in this example, it was 0.702, confirming that more than 70% of organic components were decomposed with high efficiency. .
  • gas generated in the gas bag was appropriately collected, and gas analysis was performed by gas chromatography.
  • the methane gas concentration was also good.
  • the hydrogen sulfide concentration is very low.

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Abstract

L’invention concerne un procédé de fermentation à sec au méthane selon lequel une plus grande quantité d'énergie peut être récupérée en comparaison avec le procédé de fermentation à sec au méthane existant. L’invention concerne également l’utilisation effective de charbon de basse qualité tel qu’un charbon ayant un faible degré de houillification. Le procédé de soumission d’une matière à fermenter à une fermentation à sec au méthane selon l’invention est caractérisé en ce que : la matière à fermenter contient du charbon ayant un faible degré de houillification ; la teneur en charbon ayant un faible degré de houillification est comprise entre 10 et 50 % en masse par rapport à la quantité totale de matière à fermenter ; la matière à fermenter est mélangée avec une boue d’ensemencement qui est constituée d’une matière fermentée issue d’une cuve de fermentation au méthane ; le mélange résultant est introduit dans la cuve de fermentation au méthane ; et la teneur totale en solides du mélange dans la cuve de fermentation au méthane est d’au moins 25 %.
PCT/JP2007/050882 2006-01-25 2007-01-22 Procede de fermentation a sec au methane Ceased WO2007086334A1 (fr)

Priority Applications (1)

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JP2007555920A JP4523044B2 (ja) 2006-01-25 2007-01-22 乾式メタン発酵法

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JP2006-016785 2006-01-25
JP2006016785 2006-01-25

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Cited By (7)

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JP2009255074A (ja) * 2008-04-11 2009-11-05 Hanbat National Univ Industry-Academic Cooperation Foundation 有機性廃棄物処理のための嫌気性統合工程装置
JP2016019966A (ja) * 2014-06-17 2016-02-04 日本臓器製薬株式会社 汚泥処理方法及び汚泥処理システム
JP2019107602A (ja) * 2017-12-18 2019-07-04 大和ハウス工業株式会社 メタン発酵システム
JP6601831B1 (ja) * 2019-05-20 2019-11-06 株式会社 ユーリカ エンジニアリング バイオマス由来ｃｏ２フリー電力・水素併産システム
CN110498586A (zh) * 2019-07-20 2019-11-26 上海交通大学 一种通过添加生物炭改善鸡粪厌氧发酵产沼气特性的方法
JP2020157299A (ja) * 2014-09-23 2020-10-01 アワマ ゲー・エム・ベー・ハーａｗａｍａ ＧｍｂＨ 廃水処理方法及び廃水処理装置
JP2022182233A (ja) * 2021-05-28 2022-12-08 株式会社日立製作所 生産システムおよび生産システムの運用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115780455B (zh) * 2022-11-23 2025-02-28 南京乐透思高新材料科技有限公司 一种餐厨垃圾和厨余垃圾综合处理系统、餐厨垃圾和厨余垃圾综合处理方法及应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09316466A (ja) * 1996-05-24 1997-12-09 Ube Ind Ltd 固形廃棄物と低品位炭の同時処理方法
JP2005125149A (ja) * 2003-10-21 2005-05-19 Ebara Corp 有機性廃棄物の嫌気性処理方法及び装置
JP2005131558A (ja) * 2003-10-31 2005-05-26 Kubota Corp 廃棄物処理方法
JP2005230624A (ja) * 2004-02-17 2005-09-02 Ohbayashi Corp 乾式メタン発酵法
JP2007038057A (ja) * 2005-08-01 2007-02-15 Shinzo Ito 乾式メタン発酵法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09316466A (ja) * 1996-05-24 1997-12-09 Ube Ind Ltd 固形廃棄物と低品位炭の同時処理方法
JP2005125149A (ja) * 2003-10-21 2005-05-19 Ebara Corp 有機性廃棄物の嫌気性処理方法及び装置
JP2005131558A (ja) * 2003-10-31 2005-05-26 Kubota Corp 廃棄物処理方法
JP2005230624A (ja) * 2004-02-17 2005-09-02 Ohbayashi Corp 乾式メタン発酵法
JP2007038057A (ja) * 2005-08-01 2007-02-15 Shinzo Ito 乾式メタン発酵法

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009255074A (ja) * 2008-04-11 2009-11-05 Hanbat National Univ Industry-Academic Cooperation Foundation 有機性廃棄物処理のための嫌気性統合工程装置
JP2016019966A (ja) * 2014-06-17 2016-02-04 日本臓器製薬株式会社 汚泥処理方法及び汚泥処理システム
JP2020157299A (ja) * 2014-09-23 2020-10-01 アワマ ゲー・エム・ベー・ハーａｗａｍａ ＧｍｂＨ 廃水処理方法及び廃水処理装置
JP7167091B2 (ja) 2014-09-23 2022-11-08 アワマ ゲー・エム・ベー・ハー 廃水処理方法及び廃水処理装置
JP2019107602A (ja) * 2017-12-18 2019-07-04 大和ハウス工業株式会社 メタン発酵システム
JP7025197B2 (ja) 2017-12-18 2022-02-24 大和ハウス工業株式会社 メタン発酵システム
JP6601831B1 (ja) * 2019-05-20 2019-11-06 株式会社 ユーリカ エンジニアリング バイオマス由来ｃｏ２フリー電力・水素併産システム
WO2020234978A1 (fr) * 2019-05-20 2020-11-26 株式会社 ユーリカ エンジニアリング Système de coproduction d'énergie exempte de co2 et d'hydrogène à partir de biomasse
CN110498586A (zh) * 2019-07-20 2019-11-26 上海交通大学 一种通过添加生物炭改善鸡粪厌氧发酵产沼气特性的方法
JP2022182233A (ja) * 2021-05-28 2022-12-08 株式会社日立製作所 生産システムおよび生産システムの運用方法

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