WO1984000038A1 - Process and plant for producing biogas - Google Patents
Process and plant for producing biogas Download PDFInfo
- Publication number
- WO1984000038A1 WO1984000038A1 PCT/DK1983/000058 DK8300058W WO8400038A1 WO 1984000038 A1 WO1984000038 A1 WO 1984000038A1 DK 8300058 W DK8300058 W DK 8300058W WO 8400038 A1 WO8400038 A1 WO 8400038A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- digestion
- manure
- tank
- tanks
- thermophilic
- 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
Links
Classifications
-
- 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
- C12M23/58—Reaction vessels connected in series or in parallel
-
- 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
-
- 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
Definitions
- This invention relates to a process for producing biogas by digestion of animal manure under production of methane by a continuous process, in which fresh animal manure is supplied to a digestion tank concurrently with the removal of degassed manure from the tank.
- the treatment of the supplied manure takes place in a single digestion tank either by a so-called mesophilic process where the diges- tion and the accompanying production of methane take place at a comparatively low temp-rature of about 35°C, or by a thermophilic process in which the digestion with a more complete degassing of the manure takes place at a temperature of about 55°C.
- the mesophilic process re- quires a comparatively long treatment time if a reason ⁇ able amount of gas is to be evolved, and a complete de- gassing of the manure is difficult to achieve; at the same time, mesophilic process does not make it possible to remove completely pathogenic organisms from the treat- ed manure which after having passed the biogas plant is to be used for fertilizing purposes.
- thermophilic process By the thermophilic process, one achieves a more complete degassing, of the manure, but in order to main ⁇ tain the comparatively high digestion temperature, it is necessary, especially at low outdoor temperatures, to supply a substantial amount of energy to heat the digestor, which reduces the efficiency in respect of energy economy to such an extent that up till now the thermophilic process has not been extensively used, in spite of the fact that it offers substantial environmen ⁇ tal advantages owing to the fact that it results in a degassed manure of a very high fertilizing value, practically odourless and also free of pathogenic orga ⁇ nisms, such as intestinal worms and various pathogenic bacteria, which were contained in the fresh manure.
- OM that the supplied animal manure is, in two separate, successive digestion tanks, subjected first to a meso ⁇ philic digestion at a temperature of about 35°C and afterwards to a thermophilic digestion at a temperature of about 55°C.
- thermophilic process in which starting material plant residue and organic refuse from the vegetable production, such as litter straw, have been decomposed to a substantial ex ⁇ tent as compared to fresh manure. Consequently, the pro ⁇ cessing time for the complete degassing of manure by the thermophilic process is substantially shorter than in the case of a thermophilic process carried out from fresh manure.
- the duration of the thermophilic digestion will typically be of about 6-8 days, while a thermophilic process on basis of fresh manure will typically require a processing time of 3 to 4 weeks.
- a plant according to the invention is characterized in that it con rises an inner digestion tank provided with heating members for the thermophilic digestion of manure at a ten erature of about 55°C, and a surrounding outer digestion tank for the mesophilic digestion of manure at a temperature of about 35°C, which tanks are separated by a common heat- insulating wall and communicate with each other only through a duct provided adjacent to the said wall for transferring mesophilically digested manure from the bottom of the outer tank to the upper part of the inner tank, an inlet duct for fresh manure opening into the upper part of the outer tank and an outlet duct for de ⁇ gassed manure passing from the bottom of the inner tank througt the outer tank, while outlet ducts for the methane gas are respectively connected with each of two separate chambers which are placed above the tanks and are open towards their respective tank.
- thermophilic digestion tank by the mesophilic digestion tank will further reduce the total heat requirement for digestion and degassing of a given amount of manure per time unit.
- the biogas plant com ⁇ prises an inner thermophilic digestion tank 1 surround- ed by an outer mesophilic digestion tank 2, the two tanks being separated by a common heat-insulating wall 3.
- the outer tank 2 has also a heat-insulating outer wall 4.
- An inlet duct 5 for fresh animal manure opens in- to the upper part of the outer tank 2, while in connec ⁇ tion with the common wall 3,, provision is made of a connection duct 6 for transferring the mesophilically digested manure from the bottom of the outer tank 2 to the top of the inner tank 1. From the bottom of the inner tank 1 , an outlet duct 7 for degassed manure passes through the outer tank 2 and the upper part of the outer wall 4.
- each of the tanks 1 and 2 closed by its respective heat-insulating roof, 8 and 9 respectively, so that there is no air connection between the two tanks but only connection through the transfer duct 6.
- Outlet ducts 10 and 11 for methane gas 5 from the inner tank 1 and the outer tank 2, respec ⁇ tively, are passed through the roofs 8 and 9 , re ⁇ spectively.
- the biogas plant according to the invention is of the so-called displacement type where the digestion pro-
- thermophilic digestion process 20 tain the temperature of about 55°C necessary to the thermophilic digestion process, provision is made of a heating coil 12, while a heating pipe 13 is provided for the occasional heating of the outer tank 2 in cold periods, in order to maintain the temperature of about
- the tanks 1 and 2 may, moreover, be provided with devices for instance in the form of circulating pumps for stirring the manure and thus preventing the formation of a so-called floating (supernatant) layer
- Such stirring devices can also in a conventional manner be further designed for comminuting manure, in particular in the outer tank 2.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Sustainable Development (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Clinical Laboratory Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment Of Sludge (AREA)
Abstract
In the production of biogas, an improvement in respect of energy economy with lower heat consumption and shorter processing time and at the same time an odourless degassed animal manure of high fertilizing value and free of pathogenic organisms is obtained by digestion of manure in a continuous process in which the supplied manure is, in two separate, successive digestion tanks, first subjected to a mesophilic digestion at a temperature of about 35<o> C and afterwards to a thermophilic digestion at a temperature of about 55<o> C. The tanks can be designed as an inner digestion tank (1) for the thermophilic digestion and a surrounding outer digestion tank (2) for the mesophilic digestion, separated by a common heat-insulating wall (3) in connection with which a transfer duct (6) for transferring mesophilically digested manure from the bottom of the outer tank (2) to the top of the inner tank (1) constitutes the only connection between the two tanks.
Description
Process and plant for producing biogas.
This invention relates to a process for producing biogas by digestion of animal manure under production of methane by a continuous process, in which fresh animal manure is supplied to a digestion tank concurrently with the removal of degassed manure from the tank.
In known biogas plants, the treatment of the supplied manure takes place in a single digestion tank either by a so-called mesophilic process where the diges- tion and the accompanying production of methane take place at a comparatively low temp-rature of about 35°C, or by a thermophilic process in which the digestion with a more complete degassing of the manure takes place at a temperature of about 55°C. The mesophilic process re- quires a comparatively long treatment time if a reason¬ able amount of gas is to be evolved, and a complete de- gassing of the manure is difficult to achieve; at the same time, mesophilic process does not make it possible to remove completely pathogenic organisms from the treat- ed manure which after having passed the biogas plant is to be used for fertilizing purposes.
By the thermophilic process, one achieves a more complete degassing, of the manure, but in order to main¬ tain the comparatively high digestion temperature, it is necessary, especially at low outdoor temperatures, to supply a substantial amount of energy to heat the digestor, which reduces the efficiency in respect of energy economy to such an extent that up till now the thermophilic process has not been extensively used, in spite of the fact that it offers substantial environmen¬ tal advantages owing to the fact that it results in a degassed manure of a very high fertilizing value, practically odourless and also free of pathogenic orga¬ nisms, such as intestinal worms and various pathogenic bacteria, which were contained in the fresh manure.
With a view to overcoming the energetic and^ en¬ vironmental drawbacks of existing biogas plants, the process according to the invention is characterized in
OM
that the supplied animal manure is, in two separate, successive digestion tanks, subjected first to a meso¬ philic digestion at a temperature of about 35°C and afterwards to a thermophilic digestion at a temperature of about 55°C.
By subjecting successively the animal manure first to a mesophilic digestion and then to a thermo¬ philic digestion, one obtains in the first place an en¬ vironmentally valuable process making the degassed manure intended for fertilizing purposes both odourless and free of pathogenic organisms, so that the process according to the invention is particularly suitable for use in collec¬ tive plants treating manure from a plurality of farms, as it ensure that the degassed manure returned to each farm for fertilizing purposes is not infected with pathogenic organisms of foreign origin.
Moreover, as a result of the first mesophilic digestion process a more homogeneous manure πaterial is supplied as starting material for the subsequent thermo- philic process, in which starting material plant residue and organic refuse from the vegetable production, such as litter straw, have been decomposed to a substantial ex¬ tent as compared to fresh manure. Consequently, the pro¬ cessing time for the complete degassing of manure by the thermophilic process is substantially shorter than in the case of a thermophilic process carried out from fresh manure. In the process according to the invention the duration of the thermophilic digestion will typically be of about 6-8 days, while a thermophilic process on basis of fresh manure will typically require a processing time of 3 to 4 weeks.
For carrying out the process, a plant according to the invention is characterized in that it con rises an inner digestion tank provided with heating members for the thermophilic digestion of manure at a ten erature of about 55°C, and a surrounding outer digestion tank for the mesophilic digestion of manure at a temperature of about 35°C, which tanks are separated by a common heat-
insulating wall and communicate with each other only through a duct provided adjacent to the said wall for transferring mesophilically digested manure from the bottom of the outer tank to the upper part of the inner tank, an inlet duct for fresh manure opening into the upper part of the outer tank and an outlet duct for de¬ gassed manure passing from the bottom of the inner tank througt the outer tank, while outlet ducts for the methane gas are respectively connected with each of two separate chambers which are placed above the tanks and are open towards their respective tank.
This embodiment of the biogas plant with coaxial cylindrical tanks results in a further improvement of the energetic efficiency since the surrounding of the thermophilic digestion tank by the mesophilic digestion tank will further reduce the total heat requirement for digestion and degassing of a given amount of manure per time unit.
The invention will in the following be explained in more detail with reference to the schematic drawing showing a section of an embodiment of a biogas plant according to the invention.
In the embodiment shown, the biogas plant com¬ prises an inner thermophilic digestion tank 1 surround- ed by an outer mesophilic digestion tank 2, the two tanks being separated by a common heat-insulating wall 3. The outer tank 2 has also a heat-insulating outer wall 4.
An inlet duct 5 for fresh animal manure opens in- to the upper part of the outer tank 2, while in connec¬ tion with the common wall 3,, provision is made of a connection duct 6 for transferring the mesophilically digested manure from the bottom of the outer tank 2 to the top of the inner tank 1. From the bottom of the inner tank 1 , an outlet duct 7 for degassed manure passes through the outer tank 2 and the upper part of the outer wall 4.
At the top,' each of the tanks 1 and 2
closed by its respective heat-insulating roof, 8 and 9 respectively, so that there is no air connection between the two tanks but only connection through the transfer duct 6. Outlet ducts 10 and 11 for methane gas 5 from the inner tank 1 and the outer tank 2, respec¬ tively, are passed through the roofs 8 and 9 , re¬ spectively.
The biogas plant according to the invention is of the so-called displacement type where the digestion pro-
10 cess is continuous, since once the process has been started, the supply of fresh manure through the inlet duct 5 takes place concurrently with the removal of degassed manure through the outlet duct 7 and its conveying to a storage vessel (not shown) . The levels
15 of manure in the inner tank 1 and the outer tank 2 will be determined by the position of the lead-in of the outlet duct 7 through the outer wall 4 and of the opening of the transfer duct 6 into the inner tank 1. For heating the inner tank 1 in order to main-
20 tain the temperature of about 55°C necessary to the thermophilic digestion process, provision is made of a heating coil 12, while a heating pipe 13 is provided for the occasional heating of the outer tank 2 in cold periods, in order to maintain the temperature of about
25 35°C for the mesophilic digestion process.
The tanks 1 and 2 may, moreover, be provided with devices for instance in the form of circulating pumps for stirring the manure and thus preventing the formation of a so-called floating (supernatant) layer
30 at the top of the tanks. Such stirring devices can also in a conventional manner be further designed for comminuting manure, in particular in the outer tank 2.
Claims
P A T E N T C L A I M S 1. A process for producing biogas by digestion of animal manure under production of methane by a con¬ tinuous process, in which fresh animal manure is supplied to a digestion tank concurrently with the re- i moval of degassed manure from the tank, characterized in that the supplied animal manure is, in two separate, successive digestion tanks (1, 2), subjected first to a mesophilic digestion at a temperature of about 35°C and afterwards to a thermophilic digestion at a tempe¬ rature of about 55°C.
2. A process as claimed in claim 1, characterized in that the mesophilic digestion is continued until a substantially homogeneous manure material to be supplied to the digestion tank (1] for the thermophilic diges¬ tion is obtained, and that the duration of the thermo¬ philic digestion is substantially shorter than the duration of the mesophilic digestion.
3. A process as claimed in claim 1 or 2, characterized in that the duration of the mesophilic digestion is of about two weeks, while the duration of the thermophilic digestion is of 6 to 8 days.
4. A plant for carrying out the process according to claim 1 or 2, characterized in that it comprises an inner digestion tank (1) provided with heating members (12) for the thermophilic digestion of manure at a tem¬ perature of about 55 C,and a surrounding outer digestion tank (2) for the mesophilic digestion of manure at a ■ temperature of about 35°C, which tanks are separated by a common heat-insulating wall (3) and communicate with each other only through a duct (6) provided adjacent to the said wall for transferring mesophilically digested manure from the bottom of the outer tank (2) to the top of the inner tank (1), an inlet duct (5) for fresh manure opening into the top of the outer tank (2) and an outlet- duct (7) for degassed manure passing from the bottom of the inner tank (1) through the outer tank (2), while common outlet ducts (10, 11) for the methane gas
are respectively connected with each of two separate chambers placed above the tanks (1, 2) and open towards their respective tank.
5. A plant as claimed in claim 4, characterized in that the common wall (3) between the inner and the outer tank (1, 2) and an outer wall (4) for the outer tank (2) are formed of coaxial, substantially cylindrical walls.
-BURE
OKPI
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK271382A DK271382A (en) | 1982-06-16 | 1982-06-16 | METHOD AND PLANT FOR BIOGAS MANUFACTURING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1984000038A1 true WO1984000038A1 (en) | 1984-01-05 |
Family
ID=8114951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DK1983/000058 Ceased WO1984000038A1 (en) | 1982-06-16 | 1983-06-03 | Process and plant for producing biogas |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0111505A1 (en) |
| DK (1) | DK271382A (en) |
| WO (1) | WO1984000038A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986000293A1 (en) * | 1982-12-30 | 1986-01-16 | Inprohold Establishment | Method and plant for continuously producing biological humus-forming fertilizer |
| US5525229A (en) * | 1994-09-14 | 1996-06-11 | North Carolina State University | Process and apparatus for anaerobic digestion |
| FR2744937A1 (en) * | 1996-02-21 | 1997-08-22 | Europ Agence Spatiale | ORGANIC WASTE TREATMENT PROCESS AND PLANT AND APPLICATIONS OF SUCH PROCESS |
| WO1999020573A1 (en) * | 1997-10-22 | 1999-04-29 | Nordenskjoeld Reinhart Von | Biogas facility |
| DE10345600A1 (en) * | 2003-09-29 | 2005-04-28 | Eisenmann Kg Maschbau | Plant to generate biogas from biomass has fermenting container divided into two zones with heating to give raised temperature in second discharge zone |
| US6929744B2 (en) | 2000-05-12 | 2005-08-16 | United Utilites Plc | Sludge treatment at a mesophilic temperature |
| DE102004035997A1 (en) * | 2004-07-16 | 2006-02-02 | Rühl, Bernhard | Biogas plant for the supply of methane-containing gases |
| DE102005054323A1 (en) * | 2005-11-11 | 2007-05-24 | Wilhelm Gantefort | Fermenter for the production of biogas from organic material |
| US7416644B2 (en) | 2002-08-01 | 2008-08-26 | Green Farm Energy | Method and device for stripping ammonia from liquids |
| RU2414443C2 (en) * | 2009-06-04 | 2011-03-20 | Российская академия сельскохозяйственных наук Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) | Line of manure recycling to produce biogas and fertilisers |
| WO2018064993A1 (en) * | 2016-10-09 | 2018-04-12 | Archea New Energy Gmbh | Multi-chamber system for generating biogas |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013039407A1 (en) | 2011-09-16 | 2013-03-21 | Green Gas As | Modular anaerobic digestion system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE630242C (en) * | 1931-06-02 | 1936-05-23 | Franz Fries | Device for utilizing the surplus heat of artificially heated digestion rooms |
| GB462941A (en) * | 1935-06-21 | 1937-03-18 | Dorr Co Inc | Improvements relating to the process of sewage sludge digestion and apparatus therefor |
| AU485782B2 (en) * | 1972-08-24 | 1975-02-27 | Beaumont Stanley | Sewage treatment plant and process |
| DE3042883A1 (en) * | 1980-11-13 | 1982-06-09 | Hans Dipl.-Ing. 6393 Wehrheim Schneider | Biomass conversion to methane and manure - in two reactors in series with specified different temp. levels |
-
1982
- 1982-06-16 DK DK271382A patent/DK271382A/en not_active Application Discontinuation
-
1983
- 1983-06-03 WO PCT/DK1983/000058 patent/WO1984000038A1/en not_active Ceased
- 1983-06-03 EP EP83901707A patent/EP0111505A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE630242C (en) * | 1931-06-02 | 1936-05-23 | Franz Fries | Device for utilizing the surplus heat of artificially heated digestion rooms |
| GB462941A (en) * | 1935-06-21 | 1937-03-18 | Dorr Co Inc | Improvements relating to the process of sewage sludge digestion and apparatus therefor |
| AU485782B2 (en) * | 1972-08-24 | 1975-02-27 | Beaumont Stanley | Sewage treatment plant and process |
| DE3042883A1 (en) * | 1980-11-13 | 1982-06-09 | Hans Dipl.-Ing. 6393 Wehrheim Schneider | Biomass conversion to methane and manure - in two reactors in series with specified different temp. levels |
Non-Patent Citations (1)
| Title |
|---|
| Patent Abstracts of Japan, abstract of JP 56-108 591, published 1981-08-28 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986000293A1 (en) * | 1982-12-30 | 1986-01-16 | Inprohold Establishment | Method and plant for continuously producing biological humus-forming fertilizer |
| US5525229A (en) * | 1994-09-14 | 1996-06-11 | North Carolina State University | Process and apparatus for anaerobic digestion |
| FR2744937A1 (en) * | 1996-02-21 | 1997-08-22 | Europ Agence Spatiale | ORGANIC WASTE TREATMENT PROCESS AND PLANT AND APPLICATIONS OF SUCH PROCESS |
| WO1997031120A1 (en) * | 1996-02-21 | 1997-08-28 | Agence Spatiale Europeenne | Organic waste processing method and plant, and uses of said method |
| US6077548A (en) * | 1996-02-21 | 2000-06-20 | Agence Spatiale Europeenne | Organic waste processing method, and uses thereof |
| WO1999020573A1 (en) * | 1997-10-22 | 1999-04-29 | Nordenskjoeld Reinhart Von | Biogas facility |
| US6929744B2 (en) | 2000-05-12 | 2005-08-16 | United Utilites Plc | Sludge treatment at a mesophilic temperature |
| US7416644B2 (en) | 2002-08-01 | 2008-08-26 | Green Farm Energy | Method and device for stripping ammonia from liquids |
| DE10345600A1 (en) * | 2003-09-29 | 2005-04-28 | Eisenmann Kg Maschbau | Plant to generate biogas from biomass has fermenting container divided into two zones with heating to give raised temperature in second discharge zone |
| DE102004035997A1 (en) * | 2004-07-16 | 2006-02-02 | Rühl, Bernhard | Biogas plant for the supply of methane-containing gases |
| DE102005054323A1 (en) * | 2005-11-11 | 2007-05-24 | Wilhelm Gantefort | Fermenter for the production of biogas from organic material |
| DE102005054323B4 (en) * | 2005-11-11 | 2008-02-21 | Wilhelm Gantefort | Fermenter for the production of biogas from organic material |
| US8283159B2 (en) | 2005-11-11 | 2012-10-09 | Wilheim Gantefort | Fermenter for producing biogas from organic material |
| RU2414443C2 (en) * | 2009-06-04 | 2011-03-20 | Российская академия сельскохозяйственных наук Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) | Line of manure recycling to produce biogas and fertilisers |
| WO2018064993A1 (en) * | 2016-10-09 | 2018-04-12 | Archea New Energy Gmbh | Multi-chamber system for generating biogas |
Also Published As
| Publication number | Publication date |
|---|---|
| DK271382A (en) | 1983-12-17 |
| EP0111505A1 (en) | 1984-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100646076B1 (en) | Two-phase type methane fermentation reactor | |
| US4297216A (en) | Method for treatment of biochemical waste | |
| WO1984000038A1 (en) | Process and plant for producing biogas | |
| US4198211A (en) | Microbiological processes to produce fuel gas | |
| AU2016378939B2 (en) | Biomass, thermal pressure hydrolysis and anaerobic digestion | |
| BRPI0915815B1 (en) | PROCESS FOR THE PRODUCTION OF METHANE FROM PROCESS WATERS AND BIOGENIC MATERIAL | |
| EP2768965B1 (en) | Multiple tank high solids anaerobic digester | |
| CA2379493A1 (en) | An organic waste material treatment process | |
| PL194933B1 (en) | Biogas generating facility | |
| DE4308920A1 (en) | Device for the treatment of biorefuse or the like | |
| CN111778292A (en) | Agricultural solid waste biological fermentation method | |
| GB2407088A (en) | Anaerobic waste treatment process and apparatus | |
| US20210292694A1 (en) | Scalable biodigester plant for generating biogas from livestock liquid manure | |
| CA1042225A (en) | Process for conditioning sewage sludge | |
| CN101215520A (en) | Biogas dry fermentation multi-tank circulation continuous process method | |
| US2516076A (en) | Method of digesting sewage sludge or trades wastes | |
| US20140311198A1 (en) | Pressurised recirculation of organic material | |
| JPS60216899A (en) | Anaerobic digestion method | |
| RU49524U1 (en) | INDUSTRIAL PLANT FOR PROCESSING ORGANIC WASTE FOR BIOGUMUS AND BIOGAS | |
| WO2005017091A1 (en) | Biogas fermentation installation | |
| SU1479423A1 (en) | Installation for double-stage anaerobic fermentation of organic waste | |
| GB2124608A (en) | Treatment of organic waste | |
| Goel et al. | Anaerobic Treatment of Food Processing Wastes and Agricultural Effluents | |
| CN220376406U (en) | Chicken manure biogas slurry ammonia stripping device | |
| RU2126778C1 (en) | Method of producing fertilizers and biogas from litter manure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Designated state(s): FI NO US Kind code of ref document: A1 Designated state(s): FI NO US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB LU NL SE Designated state(s): AT BE CH DE FR GB LU NL SE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1983901707 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1983901707 Country of ref document: EP |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 1983901707 Country of ref document: EP |