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FR2493337A1 - Rotary reactor for producing methane by anaerobic fermentation - designed to minimise power requirements and heat loss - Google Patents

Rotary reactor for producing methane by anaerobic fermentation - designed to minimise power requirements and heat loss Download PDF

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Publication number
FR2493337A1
FR2493337A1 FR8023436A FR8023436A FR2493337A1 FR 2493337 A1 FR2493337 A1 FR 2493337A1 FR 8023436 A FR8023436 A FR 8023436A FR 8023436 A FR8023436 A FR 8023436A FR 2493337 A1 FR2493337 A1 FR 2493337A1
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Prior art keywords
anaerobic fermentation
fermentation
designed
cone
heat loss
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FR2493337B1 (en
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TRAMOND GERARD
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TRAMOND GERARD
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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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion 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
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/02—Form or structure of the vessel
    • C12M23/06—Tubular
    • 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
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/10—Rotating vessel

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Wood Science & Technology (AREA)
  • Microbiology (AREA)
  • Genetics & Genomics (AREA)
  • Biochemistry (AREA)
  • Sustainable Development (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

An anaerobic digestor for continuous operation features conical vessel which is float and rotating about a horizontal edge so that the motion draws liquid through an integral helical siphon from an internal chamber filled by a siphon or an integral archimedean screw from an adjacent sump . Suitable for anaerobic fermentation to produce methane, to operate continuously and without requiring an ancillary pump. Relatively little energy is required to rotate the floating chamber, thus improving the overall energy balance of the gas production.

Description

La présente invention concerne les appareils à fermentation de matières organiques à l'abri de l'air, destinés à produire un gaz naturel appelé méthane. The present invention relates to apparatuses for fermentation of organic materials in the absence of air, intended to produce a natural gas called methane.

Dans les appareils existants on distinque deux types :ceux à marche cyclique ou discontinue, et ceux à marche continue. Dans ces derniers types, l'alimentation en matière première est généralement réalisée par l'intermédiaire d'une pompe. L'évacuation de la matière après fermentation est également réalisée par une autre pompe. L'élimination des croûtes se formant en surface, dans l'appareil, pendant la fermentation est difficilement maitrisable, et nécessite l'utilisation d'un broyeur de croûte. La progression de la matière à fermenter dans l'appareil est faite par une vis sans fin ou un dispositif à palette.L'ensemble de ces mécanismes dépense une énergie telle que le rendement global de la fermentation, du point de vue énergétique, se trouve tellement faible que ce type d'appareil ne s'est pas développé, d'autant moins qu'il faut prélever sur la production de gaz, une quantité importante destinée à maintenir en température, aux environs de 370C, la cuve de fermentation. Le gaz restant disponible pour une autre utlisation est donc souvent négligeable. In existing devices, two types are distinguished: those with cyclic or discontinuous operation, and those with continuous operation. In these latter types, the supply of raw material is generally carried out by means of a pump. The evacuation of the material after fermentation is also carried out by another pump. The elimination of crusts forming on the surface, in the apparatus, during fermentation is difficult to control, and requires the use of a crust crusher. The progress of the material to be fermented in the apparatus is made by an endless screw or a pallet device. All of these mechanisms expend an energy such that the overall yield of fermentation, from an energy point of view, is so weak that this type of device has not developed, especially since it is necessary to take from the production of gas, a large quantity intended to maintain the temperature, around 370C, the fermentation tank. The gas remaining available for another use is therefore often negligible.

L'appareil selon l'invention élimine une grande partie de ces dépenses d'énergie. Il est en effet constitué d'un cône dont une génératrice est horizontale. La petite base se trouvant du côté de l'entrée de la matière organique, et la grande base du côté de la sortie de la matière après fermentation. La rotation de ce cône autour de son axe va produire : l'approvisionnement en matière organique, la progression de cette matière dans l'appareil ae l'entrée vers la sortie, l'évacu- ation de la matière fermentée, l'élimination de la formation de croûtes pendant la fermentation et isoler thermiquement l'intérieur de l'appareil de la température extérieure. The apparatus according to the invention eliminates a large part of this energy expenditure. It is in fact made up of a cone of which a generator is horizontal. The small base located on the side of the inlet of the organic matter, and the large base on the side of the outlet of the matter after fermentation. The rotation of this cone around its axis will produce: the supply of organic matter, the progression of this matter in the apparatus at the entry towards the exit, the evacuation of the fermented matter, the elimination of the formation of crusts during fermentation and thermally isolate the interior of the device from the outside temperature.

Selon une première variante, l'alimentation de la matière organique se fera par un cor de chasse et une spirale, et qui sera particulièrement adaptée aux lisiers;
Selon une deuxième variante, l'alimentation de la matière organique se fera par une vis d'archimède, et sera particulièrement adaptée aux traitements des fumiers pailleux.According to a first variant, the supply of organic matter will be done by a hunting horn and a spiral, and which will be particularly suitable for slurry;
According to a second variant, the supply of organic matter will be done by an archimedean screw, and will be particularly suitable for the treatment of straw manure.

Une forme d'exécution de l'invention est représentée à titre d'exemaux dessins annexés dans lesquels
Planche 1/3 est une vue en coupe verticale d'un réacteur selon l'invention, avec la première variante;
Planche 2/3 est une vue en coupe verticale d'un réacteur selon l'invention, avec la deuxième variante;
Planche 3/3 est une vue en coupe selon un plan perpendiculaire à la génératrice horizontale, et montrant le dispositif intérieur de la cuve de fermentation.An embodiment of the invention is shown by way of example appended drawings in which
Plate 1/3 is a vertical section view of a reactor according to the invention, with the first variant;
Plate 2/3 is a vertical sectional view of a reactor according to the invention, with the second variant;
Plate 3/3 is a sectional view along a plane perpendicular to the horizontal generator, and showing the internal device of the fermentation tank.

Tel qu'il est représenté à la planche 1/3, l'appareil est constitué d'un cône (1) qui peut être en acier revêtu d'une protection chimique, ou en matière palstique, ou en toute matière chimiquement inerte. Ce cône est disposé de telle sorte qu'une de ses génératrice est horizontale. As shown in Plate 1/3, the device consists of a cone (1) which can be made of steel coated with chemical protection, or of palstic material, or of any chemically inert material. This cone is arranged so that one of its generatrix is horizontal.

Il est entraîné en rotation autour de son ase par un dispositif extérieur non représenté sur la figure. Sa petite base est appelée "nez", et sa grande base fond. It is rotated around its seat by an external device not shown in the figure. Its small base is called "nose", and its large base melts.

Ce cone comporte extérieurement une spirale (2) d'alimentation en matière organique, qui débute du coté du nez par un cor de chasse (3). This cone externally comprises a spiral (2) for supplying organic matter, which begins on the side of the nose with a hunting horn (3).

Cette spirale se termine sur l'axe du cône, à l'intérieur de l'appareil, près du fond. Cette spirale est logée, dans sa plus grande partie, dans une chambre (5) dont la paroi intérieure est constituée par le cône (1) et la paroi extérieure par une spirale de vidange (axa). Cette chambre estremplie d'une matière isolante (7).This spiral ends on the axis of the cone, inside the device, near the bottom. This spiral is housed, for the most part, in a chamber (5) whose inner wall is constituted by the cone (1) and the outer wall by a drain spiral (axa). This chamber is filled with an insulating material (7).

La spirale de vidange (6) commence dans le nez par une ouverture (10). The drain spiral (6) begins in the nose with an opening (10).

Elle s'enroule, à spires jointives, à l'extérieur de l'appareil et se termine dans l'axe du cône par une bouche d'évacuation (9).It is wound, with contiguous turns, outside the device and ends in the axis of the cone by a discharge mouth (9).

Quatre génératrices intérieures du cône (1) sont munies de racleurs (12), régulièrement répartis sur la circonférence. Four internal generators of the cone (1) are provided with scrapers (12), regularly distributed over the circumference.

Des prises de gaz (8), situées sur le fond, s'enroulent sur la sortie et aboutissent à un joint tournant (11). Gas outlets (8), located on the bottom, are wound on the outlet and lead to a rotating joint (11).

L'ensemble de l'appareil est plongé dans une cuve remplie d'eau. The whole apparatus is immersed in a tank filled with water.

Lorsque l'on met le cône en rotation, le cor de chasse, qui plonge dans une cuve d'alimentation (4), pompe l'influent et remplit la spirale d'alimentation (2). Lorsque le siphon, ainsi amorcé, a rempli l'appareil, un équilibre de niveau s'établit entre ce dernier et la cuve d'alimentation
On voit pa là, que s'il n'y a pas apport de matière nouvelle dans la cuve (4), il ny aura pas alimentation de l'appareil, et ce malgré sa rotation; le système s'auto équilibre.When the cone is put in rotation, the hunting horn, which plunges into a feed tank (4), pumps the influent and fills the feed spiral (2). When the siphon, thus primed, has filled the appliance, a level balance is established between the latter and the supply tank
We see pa there, that if there is no contribution of new material in the tank (4), there will be no supply of the device, and this despite its rotation; the system balances itself.

Par la même rotation du cone, l'ouverture (10) de la spirale de vidange permet à cette dernière de se remplir jusqu'à ce que l'effluent puisse s'évacuer par la sortie (9). Il s'établit alors un équilibre général entre les niveaux d'entrée, de l'intérieur de l'appareil et de sortie. Le système est auto équilibré: s'il ne rentre rien, il ne sort rien malgré la rotation du cône. By the same rotation of the cone, the opening (10) of the drain spiral allows the latter to fill until the effluent can be discharged through the outlet (9). A general balance is then established between the entry, interior and exit levels. The system is self balanced: if it does not enter anything, it does not come out despite the rotation of the cone.

Toujours par la rotation du cône, la matière organique qui est rentrée vers le fond tombe par gravité sur la génératrice horizontale; par adhérence, elle remonte le long de la circonférence d'un cercle perpendiculaire à l'axe de rotation du cône. Lorsque l'attraction de la pesanteur devient supérieure aux forces d'adhérence, la matière organique retombe, mais perpendiculairement à la génératrice horizontale; il s'en suit qu'elle aura progressé vers le nez. Et ainsi, de proche en proche, elle arrive vers l'ouverture (10) de la spirale de vidange. Still by the rotation of the cone, the organic matter which has returned to the bottom falls by gravity onto the horizontal generator; by adhesion, it rises along the circumference of a circle perpendicular to the axis of rotation of the cone. When the attraction of gravity becomes greater than the adhesion forces, the organic matter falls back, but perpendicular to the horizontal generator; it follows that it will have progressed towards the nose. And so, step by step, it arrives towards the opening (10) of the drain spiral.

Les racleurs (12) crèvent perpétuellement la surface et par au-dessus, et par en dessous; et celà, par la rotation du cône. Ils empêchent donc la formation des croûtes, et font également progresser la matière en fermentation vers la bouche de sortie (10). The scrapers (12) puncture the surface perpetually and from above, and from below; and this, by the rotation of the cone. They therefore prevent the formation of crusts, and also advance the fermenting material towards the outlet mouth (10).

Nous avons vu que par la rotation , la spirale de vidange se remplissait d'effluent. Or ceux-ci sont à la température de fermentation, c'est à dire aux environs de 370C; la spirale d'évacuation étant à spires jointives la rotation crée donc un matelas isolant vis à vis de l'extérieur. We have seen that by the rotation, the drain spiral was filled with effluent. However, these are at the fermentation temperature, that is to say around 370C; the evacuation spiral being with contiguous turns the rotation therefore creates an insulating mattress vis-à-vis the outside.

L'appareil étant plongé dans une cuve d'eau, on se libère ainsi des contraintes de la pesanteur. D'autre part, la fermentation s'effectuant en 25 à 30 jours, la puissance nécessaire à la rotation du cône est à peine supérieure à celle nécessaire à vaincre l'inertie de rotation. L'ensemble des fonctions étant assurées par cette rotation, on voit le gain énergétique apporté par l'invention au fonctionnement des appareils de fermentation en continu des matières organiques. The device being immersed in a tank of water, we are freed from the constraints of gravity. On the other hand, the fermentation taking place in 25 to 30 days, the power required for the rotation of the cone is barely greater than that necessary to overcome the inertia of rotation. All the functions being ensured by this rotation, we see the energy gain brought by the invention to the operation of the continuous fermentation apparatus for organic matter.

Selon une autre variante, la spirale d'alimentation (2) est remplacée comme on le voit sur la planche 2/3 par une vis sans fin (14) fixée sur le fond de l'appareil et donc entrainée en rotation par celui-ci. Elle tourne dans un fourreau fixe (13) solidaire de la cuve d'alimentation (4). Le reste étant sans changement. According to another variant, the supply spiral (2) is replaced as seen on the board 2/3 by an endless screw (14) fixed on the bottom of the device and therefore rotated by it . It rotates in a fixed sleeve (13) integral with the supply tank (4). The rest being unchanged.

L'appareil, objet de l'invention, trouve des applications particulièrement intéressantes non seulement pour produire du gaz méthane à partir de fermentation anaérobie de matières organiques, mais également pour l'épuration des eaux résiduaires d'industries agroalimentaires, des eaux usées urbaines, ou encore, comme réacteur dans l'industrie chimique.  The apparatus, object of the invention, finds particularly interesting applications not only for producing methane gas from anaerobic fermentation of organic materials, but also for the purification of waste water from food industries, urban waste water, or as a reactor in the chemical industry.

Claims (6)

REVENDICATIONS 1. Appareil de fermentation anaérobie à marche continue de matière organique, caractérisé par l'utilisation d'un cône disposé de telle sorte qu'une de ses génératrices soit horizontale et dont la rotation tion autour de son axe est utilisée pour assurer l'ensemble des fonctions nécessaires à son fonctionnement. 1. Anaerobic fermentation apparatus with continuous running of organic matter, characterized by the use of a cone arranged so that one of its generatrices is horizontal and the rotation of which around its axis is used to ensure the assembly functions necessary for its operation. 2. Appareil selon la revendication 1, caractérisé en ce que la poussée d'Archimède est utilisée pour diminuer les efforts d'entrainement. 2. Apparatus according to claim 1, characterized in that the buoyancy is used to reduce the training efforts. 3. Appareil selon la revendication 1, caractérisé en ce que l'alimentation en matière à traiter est effectuée dans une version, par un siphon. 3. Apparatus according to claim 1, characterized in that the supply of material to be treated is carried out in one version, by a siphon. 4. Appareil selon la revendication 1, caractérisé en ce que l'ali- mentation en matière à traiter est effectuée dans une autre version par une vis sans fin. 4. Apparatus according to claim 1, characterized in that the supply of material to be treated is carried out in another version by a worm. 5. Appareil selon la revendication 1, caractérisé en ce que la progression de la matière est effectuée à l'intérieur, de l'entrée vers la sortie, par une combinaison successive des forces de pesanteur et des forces d'adhérence. 5. Apparatus according to claim 1, characterized in that the progression of the material is carried out inside, from the entry towards the exit, by a successive combination of the gravitational forces and the adhesion forces. 6. Appareil selon la revendication 1, caractérisé en ce que des racleurs solidaires de l!appareil empêchent la formation de croûte de fermentation.  6. Apparatus according to claim 1, characterized in that scrapers integral with the apparatus prevent the formation of crust of fermentation.
FR8023436A 1980-10-31 1980-10-31 Rotary reactor for producing methane by anaerobic fermentation - designed to minimise power requirements and heat loss Granted FR2493337A1 (en)

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Application Number Priority Date Filing Date Title
FR8023436A FR2493337A1 (en) 1980-10-31 1980-10-31 Rotary reactor for producing methane by anaerobic fermentation - designed to minimise power requirements and heat loss

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Application Number Priority Date Filing Date Title
FR8023436A FR2493337A1 (en) 1980-10-31 1980-10-31 Rotary reactor for producing methane by anaerobic fermentation - designed to minimise power requirements and heat loss

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FR2493337A1 true FR2493337A1 (en) 1982-05-07
FR2493337B1 FR2493337B1 (en) 1983-02-11

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000378A1 (en) * 1982-07-16 1984-02-02 Josef Probst Device for the production of biogas
DE3226698A1 (en) * 1982-07-16 1984-02-16 Josef 8360 Deggendorf Probst Apparatus for the production of biogas
DE3233367A1 (en) * 1982-09-08 1984-04-12 Josef 8360 Deggendorf Probst Apparatus for biogas generation
FR2688007A1 (en) * 1992-02-27 1993-09-03 Bourgogne Universite Piston-flow bioreactor intended for the culture of cells and microorganisms
WO1995022401A1 (en) * 1994-02-18 1995-08-24 Caudill, S., Daniel A reactor using tubular spiroids for gas/liquid propulsion
DE19803389A1 (en) * 1998-01-29 1999-08-05 Steffen Michael Haegele Methane gas generator with polyethylene gas bag within timber gas box
DE10306988A1 (en) * 2003-02-19 2004-09-16 Mhs International Gmbh & Co. Kg Continuous dry fermentation of a biomass, to yield a biogas, has a fermentation vessel rotating on heated water with a continuous feed and residue extraction and a gas take-off
DE102008030495A1 (en) * 2008-06-26 2009-12-31 Andreas Freudenberg Device, useful for the transportation of substrates to fermenters e.g. plug-flow fermenter, comprises a substrate inlet, a substrate outlet and a pivoting mechanism provides the transportation energy required to move the substrate
WO2016066463A1 (en) * 2014-10-27 2016-05-06 Firmenich Sa Apparatus and method for hydrolysing a product
PL424291A1 (en) * 2018-01-17 2019-07-29 Instytut Technologiczno-Przyrodniczy W Falentach Monosubstrate fermenter for the liquid manure methane fermentation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198737A (en) * 1937-06-29 1940-04-30 Petersen Kai Method of treating waste materials containing organic substances of animal or vegetable origin by mesophile or thermophile anaerobic conversion
US2864746A (en) * 1956-06-06 1958-12-16 Arthur M Buswell Process for cleaning raw wool
GB2037731A (en) * 1978-11-13 1980-07-16 Viitasalo I V Reactor for the anaerobic decomposition of organic sludge and for the production of methane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198737A (en) * 1937-06-29 1940-04-30 Petersen Kai Method of treating waste materials containing organic substances of animal or vegetable origin by mesophile or thermophile anaerobic conversion
US2864746A (en) * 1956-06-06 1958-12-16 Arthur M Buswell Process for cleaning raw wool
GB2037731A (en) * 1978-11-13 1980-07-16 Viitasalo I V Reactor for the anaerobic decomposition of organic sludge and for the production of methane

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984000378A1 (en) * 1982-07-16 1984-02-02 Josef Probst Device for the production of biogas
DE3226698A1 (en) * 1982-07-16 1984-02-16 Josef 8360 Deggendorf Probst Apparatus for the production of biogas
DE3233367A1 (en) * 1982-09-08 1984-04-12 Josef 8360 Deggendorf Probst Apparatus for biogas generation
FR2688007A1 (en) * 1992-02-27 1993-09-03 Bourgogne Universite Piston-flow bioreactor intended for the culture of cells and microorganisms
WO1995022401A1 (en) * 1994-02-18 1995-08-24 Caudill, S., Daniel A reactor using tubular spiroids for gas/liquid propulsion
US5556765A (en) * 1994-02-18 1996-09-17 Dedolph; Richard R. Reactor using tubular spiroids for gas/liquid propulsion
DE19803389A1 (en) * 1998-01-29 1999-08-05 Steffen Michael Haegele Methane gas generator with polyethylene gas bag within timber gas box
DE10306988B4 (en) * 2003-02-19 2008-09-11 Mhs International Gmbh & Co. Kg Process and apparatus for the continuous fermentation of biomass
DE10306988A1 (en) * 2003-02-19 2004-09-16 Mhs International Gmbh & Co. Kg Continuous dry fermentation of a biomass, to yield a biogas, has a fermentation vessel rotating on heated water with a continuous feed and residue extraction and a gas take-off
DE102008030495A1 (en) * 2008-06-26 2009-12-31 Andreas Freudenberg Device, useful for the transportation of substrates to fermenters e.g. plug-flow fermenter, comprises a substrate inlet, a substrate outlet and a pivoting mechanism provides the transportation energy required to move the substrate
DE102008030495B4 (en) * 2008-06-26 2011-11-10 Andreas Freudenberg Device for transporting substrate
WO2016066463A1 (en) * 2014-10-27 2016-05-06 Firmenich Sa Apparatus and method for hydrolysing a product
CN106795471A (en) * 2014-10-27 2017-05-31 弗门尼舍有限公司 The apparatus and method that product is hydrolyzed
JP2018502758A (en) * 2014-10-27 2018-02-01 フイルメニツヒ ソシエテ アノニムＦｉｒｍｅｎｉｃｈ Ｓａ Apparatus and method for hydrolyzing products
RU2726654C2 (en) * 2014-10-27 2020-07-15 Фирмениш Са Improved device and method for product hydrolysis
CN106795471B (en) * 2014-10-27 2021-04-06 弗门尼舍有限公司 Apparatus and method for hydrolyzing products
PL424291A1 (en) * 2018-01-17 2019-07-29 Instytut Technologiczno-Przyrodniczy W Falentach Monosubstrate fermenter for the liquid manure methane fermentation

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Publication number Publication date
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