WO2012148081A2 - Installation et procédé pour produire de l'électricité et du fumier par fermentation d'excréments de porcs - Google Patents

Installation et procédé pour produire de l'électricité et du fumier par fermentation d'excréments de porcs Download PDF

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Publication number
WO2012148081A2
WO2012148081A2 PCT/KR2012/001798 KR2012001798W WO2012148081A2 WO 2012148081 A2 WO2012148081 A2 WO 2012148081A2 KR 2012001798 W KR2012001798 W KR 2012001798W WO 2012148081 A2 WO2012148081 A2 WO 2012148081A2
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Prior art keywords
manure
fermentation
pig
excreta
methane gas
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PCT/KR2012/001798
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English (en)
Korean (ko)
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WO2012148081A3 (fr
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오영열
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    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C3/00—Treating manure; Manuring
    • A01C3/02—Storage places for manure, e.g. cisterns for liquid manure; Installations for fermenting manure
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/06—Apparatus for the manufacture
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/10—Energy recovery
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin
    • 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
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • 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 relates to electricity and compost production equipment and production method by fertilizing pig manure.
  • Pig manure occurs approximately 10 kg per horse per day.
  • livestock manure such as pig manure
  • a mixture of microorganisms and various chemical components is used to ferment livestock manure. to be.
  • it is attempted to know that the fiber of the plant is effective in the fermentation of livestock manure there is a method of adding rice husk or sawdust to the livestock manure, in this case there is a problem that the period of fermentation is long due to the characteristics of the plant.
  • methane gas which is a representative greenhouse gas along with carbon dioxide, which causes global warming.
  • methane gas can also be used as an electrical energy source, a method of capturing this methane gas to produce electrical energy has been attempted.
  • the present invention is to solve the above problems in the livestock manure, especially pig manure, complete fermentation of pig manure to produce a high quality compost without remaining liquid residues, shorten the fermentation period a large amount of methane gas It is possible to produce a large amount of electricity by producing a, keep the pigs clean to remove odors and prevent various diseases, it is an object of the present invention to provide electricity and compost production equipment and production method by fertilizing pig manure.
  • the electricity and compost production equipment by fertilizing pig manure of the present invention is a region in which pigs live in pigs, and a manure permeable plate having a plurality of permeable pores through which pig manure is permeable;
  • a manure conveying means for conveying the manure which is spaced apart from the lower part of the manure permeable plate at an inclined distance and the pig manure which has passed through the manure permeation plate to the bottom along the inclination of the bottom;
  • Manure drop transport unit comprising;
  • a mixing chamber connected to the manure storage unit, in which the manure of the manure storage unit is transported and a composition for fermentation is added to mix the both;
  • a fermentation chamber connected to the mixing chamber, wherein the mixture of the pig manure and the fermentation composition is transferred to compost by fermentation;
  • a methane gas collecting unit connected to the manure drop transfer unit, the manure storage unit, and the fermentation chamber
  • the electricity and compost production method by fertilizing pig manure of the present invention is a region in which pigs live in pigs, and manure permeable plate formed with a plurality of permeable pores through which pig manure can pass.
  • the manure transport for transporting the bottom surface is inclined spaced apart at a lower portion of the manure permeable plate and the pig manure falling through the manure permeable plate to the bottom surface downward along the slope of the bottom surface
  • Storing the pig manure transferred from the manure drop transporter comprising a means in the manure storage; Transferring the stored pig manure to the mixing chamber and adding and mixing the fermentation composition; Composting the mixed pig manure and fermentation composition to the fermentation chamber and fermentation; Collecting methane gas from the manure drop transfer unit, the manure storage unit, and the fermentation chamber; And generating electricity by using the collected methane gas, and transferring heat generated in the process to the dropping transfer part and the fermentation chamber.
  • Figure 1 is a plan view schematically showing the electricity and compost production equipment by fertilizing pig manure of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line A-A of FIG.
  • FIG. 3 is a perspective view showing the manure conveying means 10 of FIGS. 1 and 2.
  • the electricity and compost production equipment by the pig manure fermentation of the present invention includes a manure drop transfer unit, manure storage unit, mixing chamber, fermentation chamber, methane gas collection unit, and electricity production apparatus (Fig. 1).
  • the dropping and dropping conveyance part is a place where pig manure falls and is transported, and includes a manure permeation plate 30, a bottom surface 20, and a manure conveying means 10 (FIGS. 1 and 2).
  • a manure permeation plate 30 is omitted for convenience.
  • the manure permeation plate 30 is a plate in which a plurality of permeable holes 32 through which the manure 50 is permeable is formed, and pigs live on this plate in the pig house and excrete the manure 50. Excreted manure falls through the perforation 32 to the bottom surface 20 to be described later.
  • the bottom surface 20 is formed to be inclined spaced apart from the lower portion of the manure permeation plate 30 by a predetermined distance.
  • the angle of inclination is enough for the pig urine to flow smoothly.
  • the urine of the pig is immediately flowed down the slope, and the pig feces can be easily scraped down the slope using the manure transport means 10 to be described later.
  • the bottom surface 20 is always exposed to the toxic manure 50, so that when made of a general concrete material, there is a risk that the manure component leaks into the soil. In order to prevent this, it is preferable to configure the bottom surface 20 in a structure in which a waterproof paper of rubber material is inserted between the double concretes.
  • the side wall 40 portion on the manure permeation plate 30 is also described above to prevent the excretion of the manure component from the manure permeation plate 30 to the height of about 60 cm from the manure permeation plate 30 where the manure can float while the pig lives. Double concrete construction with waterproof paper is recommended.
  • the manure conveying means 10 means a means capable of conveying the manure 50 dropped on the bottom surface 20 in an inclined direction. This means is not particularly limited as long as it can transport the manure 50 down the slope of the bottom surface 20, but is attached to the sprocket 12 and the chain 14, and the chain 14. It is preferable that it consists of the conveyance plate 16.
  • the sprocket 12 is connected to and driven by the driving device (FIG. 3).
  • the upper portion of the transfer plate 16 is attached to the chain 14 and the lower end of the transfer plate 16 is in contact with the bottom surface 20 to move the manure 50 while moving along the chain 14 when the sprocket 12 is driven. It will be scraped down the slope. This scraping operation is frequently performed to maintain the cleanliness of pigs.
  • the line In order to maintain the proper temperature of the pig dropping transport section of the pig lives, the line is connected to use the heat generated during the electricity production process of the electricity production apparatus described later.
  • the manure storage is connected to the bottom surface 20, where the conveyed manure 50 is stored (FIG. 2).
  • the manure which shed the inclined bottom surface 20 through the scraping operation using only the transfer plate 16 or the scraping operation in parallel with the high-pressure water injection is stored in this manure storage and used for fermentation if necessary.
  • the bottom and side walls of the manure storage is preferably a double concrete structure with a waterproof paper inserted.
  • the mixing chamber is connected to the manure storage, where the pig manure is transported and the composition for fermentation is added, where both are mixed.
  • the composition for fermentation refers to an additive added to pig manure to promote fermentation, which will be described later.
  • a mixer is installed inside so that the manure and fermentation composition are mixed well. When both are evenly mixed, the mixture is transferred to the fermentation chamber.
  • the fermentation chamber is connected to the mixing chamber, where the mixture of the pig manure and the fermentation composition is transferred and composted by fermentation.
  • the line is connected to use the heat generated during the electricity production process of the electricity production apparatus described later to maintain the proper temperature.
  • a mixer rotary is installed to invert (mix) the pig manure and the fermentation composition so that the manure is rapidly fermented and methane gas is generated in large quantities. Methane gas generated here is collected through a line to the methane gas collecting unit to be described later.
  • the methane gas collecting section is connected to the manure dropping section, the manure storage section, and the fermentation chamber to collect methane gas. Fermentation composition is not added in the dropping and the manure storage unit, but methane gas is generated by the natural fermentation of pig manure here, so they are also connected to a line to collect methane gas.
  • the electricity generating device generates electricity by using methane gas collected from the methane gas collecting unit, and transfers the heat generated in the process to the dropping transfer unit and the fermentation chamber.
  • the dropping dropping part, the manure storage part, the mixing chamber, and the fermentation chamber are sealed so that methane gas does not leak. To capture the maximum amount of methane gas. Therefore, don't install windows in your house.
  • the inner wall and the ceiling of the pig yarn is finished with an epoxy material to be insulated. On finished epoxy materials, it is advisable to apply ocher sprayed water to prevent the release of epoxy and other harmful substances.
  • the pigs are cleaned and dried, and then the yellow soil spray treatment is effective in removing odors and harmful substances.
  • the pig manure transferred from the manure drop transfer unit described above is stored in the manure storage unit.
  • the stored pig manure is transferred to the mixing chamber, and the fermentation composition is added and mixed. Mixing is done evenly with a mixer.
  • the mixed pig manure and fermentation composition is transferred to the fermentation chamber and fermented to compost.
  • the fermentation chamber maintains proper temperature and humidity.
  • the temperature is preferably 35-37 ° C., which is similar to body temperature, which is the most suitable temperature for microorganisms to work.
  • the heat generated in the electricity production process of the electricity production apparatus is used through the line.
  • Pig manure and fermentation compositions are frequently inverted (mixed) with a mixer (rotary) so that the manure can be fermented quickly and a large amount of methane gas is generated.
  • a mixer rotary
  • Methane gas generated in the dropping transfer section, the manure storage section, and the fermentation chamber is collected through the line to the methane gas collection section.
  • Electricity is generated by using the collected methane gas, and the heat generated in the process is transferred to the dropping part and the fermentation chamber to maintain the proper temperature.
  • the electricity produced is used as necessary for the relevant facilities, and the surplus electricity is connected to the utility line and sold.
  • composition for fermentation used in the present invention includes dried soil and plant or chaff pulverized powder obtained by drying the plant or rice husk and grinding it to a particle size of 50 ⁇ 500 mesh.
  • Soil is rich in beneficial microorganisms and should not be contaminated. For this purpose, it is preferable to use soil about 50 cm deep at the ground surface.
  • Naturally dried soil should be stored in a well-ventilated place, maintaining its natural state at the time of harvesting without any artificial processing or shape change, which is also intended to protect the microorganisms in the soil.
  • the plants refer to all conventional plants and include grass as well as trees. All plants have fiber, which is used for fermentation of pig manure. Chaff is a byproduct of a once-processed plant, although it is part of the plant, and is referred to here separately from the plant. In the case of rice hulls, the fibrous component is used for fermentation of pig manure.
  • the type of the plant is determined according to the crop in which the pig manure compost is used. It is preferable to use a tree type as the plant for growing rice, which is a long-growing aquatic plant, and to use a grass type for growing field plants such as vegetables.
  • plants or rice husks should be harvested uncontaminated. This is to remove the source of contamination in principle.
  • Harvested plants or chaff are dried first. There is a difference in the method of drying specifically according to the plant, but all plants or chaff is preferably dried naturally. This is because a variety of beneficial microorganisms live in plants or rice hulls, which are intended to protect and propagate these microorganisms.
  • Naturally dried plants or rice husks are pulverized or crushed according to the characteristics of each plant and then subjected to final grinding to form a powder having a particle size of 50 to 500 mesh.
  • the powdering of plants or rice husks is to shorten the time for the microorganisms in the soil to decompose the plants or rice husks during fermentation of pig manure, thereby shortening the fermentation period of pig manure.
  • the particle size is less than 50 mesh, the particle size is so large that the decomposition time of the powder during the fermentation of the pig manure is long, so that the fermentation period of the pig manure is long. Moreover, when particle size exceeds 500 mesh, powdering will be expensive.
  • Pig manure is often mixed with undigested feed. This is because the pigs are densely massed and the method for faster growth results in excretion being discharged while the digestive function of the pigs is reduced. In this case, a lot of methane gas is generated during fermentation and it takes a long time to ferment.
  • the fermentation composition of the present invention is mixed with pig manure, fermenting the pig manure 100% can produce high quality compost that does not leave any liquid residues, and also shortens the fermentation period of pig manure.
  • a large amount of methane gas discharged from the fermentation of pig manure is discharged in a short time. In the case of the fermentation period, it took 6 months or more, but can be shortened to 3 months or less when using the composition for fermentation of the present invention.
  • the composition for fermentation of the present invention includes the soil collected in nature, because the soil is collected in nature, native microorganisms are inhabited.
  • the fine plant or chaff crushed powder obtained by grinding to a particle size of 50 to 500 mesh is mixed with the soil where native microorganisms inhabit. In the case of mixing with manure, the decomposition time is greatly shortened.
  • the fermentation time of the pig manure is shortened, and a large amount (more than twice as much as before) of methane gas which is a product of fermentation is discharged in a short time, and even if it collects this methane gas and produces electric energy, economic efficiency becomes enough.
  • the capture of methane gas is not just the production of electrical energy. Since 2011, the carbon trading scheme has been implemented to allow the buying and selling of greenhouse gas emission rights. If the greenhouse gas emissions are lower than the quota granted by each country, the margin can be sold to other countries. Conversely, if greenhouse gas emissions exceed quotas, other countries could buy credits. While greenhouse gas emission quotas are granted by country, most carbon trading is done between companies. In addition to carbon dioxide, methane gas, a representative greenhouse gas, can be traded as a carbon credit as it reduces emissions to the atmosphere. In this way, the carbon credits are obtained by collecting methane gas, and as long as electricity is produced from the collected methane gas, carbon credits are obtained.
  • the present invention solves the problem of treating pig manure, and the utilization value of pig manure is increased as a resource for obtaining electric energy and carbon credits.
  • the pigs bottom surface is inclined so that the pig urine flows down immediately, pig feces can be scraped downwards from time to time, if necessary, cleaning with high pressure water, so pigs are more clean This will not only prevent pig disease, but also help pig development.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Environmental Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Soil Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

La présente invention porte sur une installation et sur un procédé pour produire de l'électricité et du fumier par fermentation d'excréments de porcs. L'installation pour produire de l'électricité et du fumier par fermentation d'excréments de porcs comprend : une partie de chute et de transfert d'excréments ayant une plaque de pénétration d'excréments définissant une zone dans laquelle vivent des porcs à l'intérieur d'une porcherie et ayant une pluralité de trous de pénétration à travers lesquels passent des excréments de porcs, des surfaces inférieures disposées de façon inclinée et mutuellement espacées les unes des autres d'une distance prédéterminée sur la partie inférieure de la plaque de pénétration d'excréments, et un moyen de transfert d'excréments à l'aide duquel les excréments de porcs, traversant la plaque de pénétration d'excréments de façon à tomber sur les surfaces inférieures, sont transférés vers le bas le long des inclinaisons des surfaces inférieures ; une partie de stockage d'excréments pour stocker les excréments tombés et transférés ; une chambre de mélange dans laquelle les excréments de porcs à l'intérieur de la partie de stockage d'excréments sont transférés de façon à être ajoutés à une composition pour la fermentation, de façon à mélanger ainsi les excréments avec la composition pour la fermentation ; une chambre de fermentation dans laquelle le mélange des excréments de porcs et de la composition pour la fermentation est transféré de façon à produire un fumier par fermentation ; une partie de collecte de gaz méthane pour collecter du gaz méthane ; et un dispositif de génération d'électricité pour générer de l'électricité à l'aide du gaz méthane. Selon la présente invention, les excréments de porcs peuvent être complètement fermentés de façon à produire un fumier de haute qualité et une grande quantité d'électricité. De plus, la porcherie peut être entretenue de façon à être propre.
PCT/KR2012/001798 2011-04-27 2012-03-13 Installation et procédé pour produire de l'électricité et du fumier par fermentation d'excréments de porcs Ceased WO2012148081A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20110039348A KR101105529B1 (ko) 2011-04-27 2011-04-27 돼지분뇨 발효에 의한 전기 및 퇴비 생산 설비 및 생산 방법
KR10-2011-0039348 2011-04-27

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WO2012148081A2 true WO2012148081A2 (fr) 2012-11-01
WO2012148081A3 WO2012148081A3 (fr) 2012-12-27

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CN108191471B (zh) * 2018-01-26 2021-07-23 中国农业科学院农业环境与可持续发展研究所 一种处理禽畜养殖废弃物的方法

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