CN104762202A - Straw produced methane recycling system - Google Patents
Straw produced methane recycling system Download PDFInfo
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- CN104762202A CN104762202A CN201510191633.XA CN201510191633A CN104762202A CN 104762202 A CN104762202 A CN 104762202A CN 201510191633 A CN201510191633 A CN 201510191633A CN 104762202 A CN104762202 A CN 104762202A
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- tank
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- stalk
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- 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
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- 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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
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- 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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/40—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
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- 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
- C12M45/00—Means for pre-treatment of biological substances
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- 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
- C12M45/00—Means for pre-treatment of biological substances
- C12M45/02—Means for pre-treatment of biological substances by mechanical forces; Stirring; Trituration; Comminuting
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- 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
Abstract
The invention discloses a straw produced methane recycling system, which comprises a straw crusher, a high-pressure pretreatment tank, a steam generator, a material collection tank, a fermentation tank, a solid-liquid separator, a biogas residue storage tank and a biogas slurry storage tank. The straw produced methane recycling system is simple in structure, and high in automation degree, firm wood cellulose in the straws are softened by adopting a method of combining high-pressure stream and microwave irradiation, so that the decomposition efficiency and fermentation biomass production rate of the straw materials can be effectively improved in the process of producing biogas by fermentation of the straw materials.
Description
Technical field
The invention belongs to methane producing equipment technical field, particularly a kind of stalk produces Methane Resources system.
Background technology
China is a large agricultural country, and Model on Sown Areas of Farm ranks first in the world, according to statistics, and nearly 700,000,000 tons of current China annual stalk output.Agricultural crop straw is many is in the past used by as fuel, but along with improving constantly of our people's standard of living, and the development of rural economy and the improvement of power supply, in the last few years, peasant utilizes the burning of stalk and also reduces gradually, the quantity of residue agricultural crop straw is increasing, has reached about 400,000,000 tons every year according to estimates.The heap everywhere of a large amount of residue stalk is abandoned and is burned arbitrarily, causes topsoil, soil mineralization, fire failure, a large amount of societies, economy and the ecological problem such as block the traffic; Meanwhile, stalk, as a kind of renewable energy source, contains huge biomass energy, its recycling, to save energy, improve the ecological environment, realize society Sustainable development, have great significance.
It is that stalk, after pre-treatment, adds in methane-generating pit or tank for sewage gas and carries out anaerobically fermenting to produce biogas and organic fertilizer using agricultural crop straws such as paddy rice, corn, peanuts as raw material that stalk produces biogas.
The pre-treatment link of stalk is most important, and it is related to feed material degradation efficiency and fermentation gas rate.Traditional pre-treatment link comprises pulverizing stalk and adding fermenting agent does stack retting etc.But the cell of stalk is very solid, cell wall structure height lignifying, xylogen wherein forms the 15%-30% of cell walls, and containing the various complex combination forms that biochemical property is very stable in these xylogen, is difficult to by general microbial decomposition.Therefore, in stalk fermentation process, lignocellulose hydrolytic process is slow, hydrolysis degree is low, thus the acidifying affected subsequently and gasification.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of stalk is provided to produce Methane Resources system, its method adopting high pressure steam and microwave irradiation to combine makes the solid lignocellulose in stalk soften, thus makes stalk in fermentation methane production process, effectively improve decomposition efficiency and the fermentation gas rate of stalk.
The present invention realizes by the following technical solutions:
A kind of stalk produces Methane Resources system, and comprise stalk crasher, pre-press tank, vapour generator, Material collecting box for harvesting, fermentor tank, solid-liquid separator, natural pond slag bin, natural pond liquid bin, described stalk crasher is connected with pre-press tank; Pre-press tank is connected with Material collecting box for harvesting; Material collecting box for harvesting is connected with fermentor tank; Fermentor tank is connected with solid-liquid separator; Solid-liquid separator is connected with natural pond liquid bin with natural pond slag bin respectively;
Described pre-press tank is provided with steam-in, pre-press tank opening for feed, pre-press tank discharge port, vapour outlet, reducing valve, microwave feedback mouth, and venting; Described reducing valve is arranged on steam outlet, makes to remain on fixation pressure in pre-press tank by reducing valve; Described microwave feedback mouth is connected with microwave generator, and microwave generator produces microwave and promotes that the solid lignocellulose in stalk softens by microwave feedback mouth to launched microwave in pre-press tank; The effect of described venting prevents because the pressure in pre-press tank is excessive and produces blast;
Described vapour generator inside is provided with resistive heater; Vapour generator is connected by the steam-in of high pressure steam pipeline with pre-press tank, and the high pressure steam pipeline that vapour generator is connected with steam-in is provided with valve.
Described pre-press tank discharge port is connected with Material collecting box for harvesting, the good stalk of pre-treatment that Material collecting box for harvesting is discharged for collecting pre-press tank discharge port;
The outer wall of described fermentor tank is provided with thermal insulation layer, and fermentor tank top is provided with air outlet and fermented liquid adds mouth; Fermentor tank bottom is provided with fermentor tank discharge port; Fermentor tank top is provided with fermentor tank opening for feed;
Described Material collecting box for harvesting is connected with the fermentor tank opening for feed of fermentor tank by the second travelling belt, is sent in fermentor tank by stalk good for the pre-treatment in Material collecting box for harvesting and ferments;
Described solid-liquid separator comprises motor, axle, fixed jacket cylinder, rotates inner sleeve, and wherein, it is columnar structured for rotating inner sleeve, and its left end is provided with slag notch, and the barrel of rotation inner sleeve is provided with through hole; Rotate the inside that inner sleeve is coaxially arranged on fixed jacket cylinder; It is inner that axle is coaxially arranged on fixed jacket cylinder, and axle is fixedly installed screw blade; Rotate inner sleeve to be fixedly connected with axle by union lever, axle is connected with motor, and motor passes through axle and union lever can driven rotary inner sleeve coaxial rotating in fixed jacket cylinder; Fixed jacket cylinder is provided with protruding outer wall, and form liquid collecting cavity between protruding outer wall and rotation inner sleeve, protruding outer wall is provided with liquid outlet, and fixed jacket cylinder is provided with opening for feed; Described solid-liquid separator is connected with fermentor tank discharge port by pipeline; Solid-liquid separator is connected with natural pond liquid bin with natural pond slag bin respectively by pipeline.Natural pond slag after fermentation can be separated with natural pond liquid by solid-liquid separator, natural pond slag is stored in natural pond slag bin as organic fertilizer, and natural pond liquid flows into natural pond liquid bin as foliar nutrient.During use, starter motor, motor belt motor moving axis rotates, and makes the mixture of natural pond slag and natural pond liquid inner from opening for feed access to plant by the effect of screw blade fixing on axle.Meanwhile, axle driven rotary inner sleeve coaxial rotating in fixed jacket cylinder, utilizes the centrifugal force rotating and produce, and makes natural pond liquid enter liquid collecting cavity through the through hole rotating inner sleeve, then discharges from liquid outlet.Natural pond slag is then discharged from slag notch.
In technique scheme, described pre-press tank is also provided with temperature sensor and pressure transmitter, for the temperature and pressure in Real-Time Monitoring pre-press tank, and the steam off producer when the temperature detected or hypertonia.
In technique scheme, described microwave feedback mouth comprises two, and it is symmetricly set on the tank skin of pre-press tank.
In technique scheme, described stalk crasher is connected with pre-press tank opening for feed by the first travelling belt.
Structure of the present invention is simple, level of automation is high, its method adopting high pressure steam and microwave irradiation to combine makes the solid lignocellulose in stalk soften, thus makes stalk in fermentation methane production process, effectively improve decomposition efficiency and the fermentation gas rate of stalk.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the solid-liquid separator in invention.
In figure: 1 is pre-press tank, 2 is vapour generator, 3 is stalk crasher, 4 is Material collecting box for harvesting, 5 is fermentor tank, 6 is solid-liquid separator, 7 is natural pond slag bin, 8 is natural pond liquid bin, 1-1 is pre-press tank opening for feed, 1-2 is vapour outlet, 1-3 is reducing valve, 1-4 is temperature sensor, 1-5 is pressure transmitter, 1-6 is microwave feedback mouth, 1-7 is steam-in, 1-8 is pre-press tank discharge port, 2-1 is resistive heater, 2-2 is valve, 3-1 is the first travelling belt, 4-1 is the second travelling belt, 5-1 is that fermented liquid adds mouth, 5-2 is motor, 5-3 is air outlet, 5-4 is thermal insulation layer, 5-5 is agitator, 5-6 is fermentor tank discharge port, 6-1 is motor, 6-2 is axle, 6-3 is fixed jacket cylinder, 6-4 is for rotating inner sleeve, 6-5 is opening for feed, 6-6 is screw blade, 6-7 is union lever, 6-8 is protruding outer wall, 6-9 is slag notch, 6-10 is liquid collecting cavity, 6-11 is through hole, 6-12 is liquid outlet.
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with specific embodiment.
As shown in Figure 1, a kind of stalk involved in the present invention produces Methane Resources system, comprise stalk crasher, pre-press tank, vapour generator, Material collecting box for harvesting, fermentor tank, solid-liquid separator, natural pond slag bin, natural pond liquid bin, described stalk crasher is connected with pre-press tank; Pre-press tank is connected with Material collecting box for harvesting; Material collecting box for harvesting is connected with fermentor tank; Fermentor tank is connected with solid-liquid separator; Solid-liquid separator is connected with natural pond liquid bin with natural pond slag bin respectively.
Described pre-press tank 1 is provided with steam-in 1-7, pre-press tank opening for feed 1-1, pre-press tank discharge port 1-8, vapour outlet 1-2, reducing valve 1-3, microwave feedback mouth 1-6, and venting (not marking in figure); Described reducing valve 1-3 is arranged on vapour outlet 1-2 place, makes to remain on fixation pressure in pre-press tank 1 by reducing valve; Described microwave feedback mouth 1-6 is connected with microwave generator (not marking in figure), and microwave generator produces microwave and promotes that the solid lignocellulose in stalk softens by microwave feedback mouth to launched microwave in pre-press tank; The effect of described venting prevents because the pressure in pre-press tank is excessive and produces blast.
Described stalk crasher 3 is connected with pre-press tank opening for feed 1-1 by the first travelling belt 3-1.
Described vapour generator 2 inside is provided with resistive heater 2-1; Vapour generator 2 is connected with the steam-in 1-7 of pre-press tank 1 by high pressure steam pipeline, and the high pressure steam pipeline that vapour generator 2 is connected with steam-in 1-7 is provided with valve 2-2.
Described pre-press tank discharge port 1-8 is connected with Material collecting box for harvesting 4, the good stalk of pre-treatment that Material collecting box for harvesting is discharged for collecting pre-press tank discharge port.
The outer wall of described fermentor tank 5 is provided with thermal insulation layer 5-4, and fermentor tank top is provided with air outlet 5-3 and fermented liquid adds mouth 5-1; Fermentor tank bottom is provided with fermentor tank discharge port 5-6; Fermentor tank top is provided with fermentor tank opening for feed.
Described Material collecting box for harvesting 4 is connected with the fermentor tank opening for feed of fermentor tank 5 by the second travelling belt 4-1, is sent in fermentor tank by stalk good for the pre-treatment in Material collecting box for harvesting and ferments.
As shown in Figure 2, described solid-liquid separator 6 comprises motor, axle, fixed jacket cylinder, rotates inner sleeve, and wherein, it is columnar structured for rotating inner sleeve 6-4, and its left end is provided with slag notch 6-9, and the barrel of rotation inner sleeve 6-4 is provided with through hole 6-11; Rotate the inside that inner sleeve 6-4 is coaxially arranged on fixed jacket cylinder 6-3; It is inner that axle 6-2 is coaxially arranged on fixed jacket cylinder 6-3, axle 6-2 is fixedly installed screw blade 6-6; Rotate inner sleeve 6-4 to be fixedly connected with axle 6-2 by union lever 6-7, axle 6-2 is connected with motor 6-1, and motor passes through axle and union lever can driven rotary inner sleeve coaxial rotating in fixed jacket cylinder; Fixed jacket cylinder 6-3 is provided with protruding outer wall 6-8, and form liquid collecting cavity 6-10 between protruding outer wall 6-8 and rotation inner sleeve 6-4, protruding outer wall 6-8 is provided with liquid outlet 6-12, and fixed jacket cylinder 6-3 is provided with opening for feed 6-5.During use, starter motor, motor belt motor moving axis rotates, and makes the mixture of natural pond slag and natural pond liquid inner from opening for feed access to plant by the effect of screw blade fixing on axle.Meanwhile, axle driven rotary inner sleeve coaxial rotating in fixed jacket cylinder, utilizes the centrifugal force rotating and produce, and makes natural pond liquid enter liquid collecting cavity through the through hole rotating inner sleeve, then discharges from liquid outlet.Natural pond slag is then discharged from slag notch.
Described solid-liquid separator 6 is connected with fermentor tank discharge port 5-6 by pipeline; Solid-liquid separator is connected with natural pond liquid bin 8 with natural pond slag bin 7 respectively by pipeline.Natural pond slag after fermentation can be separated with natural pond liquid by solid-liquid separator, natural pond slag is stored in natural pond slag bin as organic fertilizer, and natural pond liquid flows into natural pond liquid bin as foliar nutrient.
Described pre-press tank 1 is also provided with temperature sensor 1-4 and pressure transmitter 1-5, for the temperature and pressure in Real-Time Monitoring pre-press tank, and the steam off producer when the temperature detected or hypertonia.
Described microwave feedback mouth comprises two, and it is symmetricly set on the tank skin of pre-press tank.
Above to invention has been exemplary description; should be noted that; when not departing from core of the present invention, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection scope of the present invention.
Claims (4)
1. stalk produces Methane Resources system, it is characterized in that: comprise stalk crasher, pre-press tank, vapour generator, Material collecting box for harvesting, fermentor tank, solid-liquid separator, natural pond slag bin, natural pond liquid bin, described stalk crasher is connected with pre-press tank; Pre-press tank is connected with Material collecting box for harvesting; Material collecting box for harvesting is connected with fermentor tank; Fermentor tank is connected with solid-liquid separator; Solid-liquid separator is connected with natural pond liquid bin with natural pond slag bin respectively;
Described pre-press tank is provided with steam-in, pre-press tank opening for feed, pre-press tank discharge port, vapour outlet, reducing valve, microwave feedback mouth, and venting; Described reducing valve is arranged on steam outlet; Described microwave feedback mouth is connected with microwave generator;
Described vapour generator inside is provided with resistive heater; Vapour generator is connected by the steam-in of high pressure steam pipeline with pre-press tank, and the high pressure steam pipeline that vapour generator is connected with steam-in is provided with valve;
The outer wall of described fermentor tank is provided with thermal insulation layer, and fermentor tank top is provided with air outlet and fermented liquid adds mouth; Fermentor tank bottom is provided with fermentor tank discharge port; Fermentor tank top is provided with fermentor tank opening for feed;
Described Material collecting box for harvesting is connected with the fermentor tank opening for feed of fermentor tank by the second travelling belt;
Described solid-liquid separator comprises motor, axle, fixed jacket cylinder, rotates inner sleeve, and wherein, it is columnar structured for rotating inner sleeve, and its left end is provided with slag notch, and the barrel of rotation inner sleeve is provided with through hole; Rotate the inside that inner sleeve is coaxially arranged on fixed jacket cylinder; It is inner that axle is coaxially arranged on fixed jacket cylinder, and axle is fixedly installed screw blade; Rotate inner sleeve to be fixedly connected with axle by union lever, axle is connected with motor; Fixed jacket cylinder is provided with protruding outer wall, and form liquid collecting cavity between protruding outer wall and rotation inner sleeve, protruding outer wall is provided with liquid outlet, and fixed jacket cylinder is provided with opening for feed; Described solid-liquid separator is connected with fermentor tank discharge port by pipeline; Solid-liquid separator is connected with natural pond liquid bin with natural pond slag bin respectively by pipeline.
2. stalk according to claim 1 produces Methane Resources system, it is characterized in that: described pre-press tank is provided with temperature sensor.
3. stalk according to claim 1 produces Methane Resources system, it is characterized in that: described pre-press tank is provided with pressure transmitter.
4. stalk according to claim 1 produces Methane Resources system, it is characterized in that: described stalk crasher is connected with pre-press tank opening for feed by the first travelling belt.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191633.XA CN104762202A (en) | 2015-04-21 | 2015-04-21 | Straw produced methane recycling system |
| CN201610409714.7A CN106047680A (en) | 2015-04-21 | 2015-04-21 | System for preparing biogas by utilizing straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191633.XA CN104762202A (en) | 2015-04-21 | 2015-04-21 | Straw produced methane recycling system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610409714.7A Division CN106047680A (en) | 2015-04-21 | 2015-04-21 | System for preparing biogas by utilizing straw |
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| CN104762202A true CN104762202A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510191633.XA Pending CN104762202A (en) | 2015-04-21 | 2015-04-21 | Straw produced methane recycling system |
| CN201610409714.7A Pending CN106047680A (en) | 2015-04-21 | 2015-04-21 | System for preparing biogas by utilizing straw |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610409714.7A Pending CN106047680A (en) | 2015-04-21 | 2015-04-21 | System for preparing biogas by utilizing straw |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107136543A (en) * | 2017-05-17 | 2017-09-08 | 安徽康桥生物科技有限公司 | The quick-fried device of sudden strain of a muscle for handling stalk |
| CN109096000A (en) * | 2018-10-24 | 2018-12-28 | 北方民族大学 | A kind of stalk processing method and system |
| RU2687415C1 (en) * | 2018-06-29 | 2019-05-13 | Федеральное государственное бюджетное научное учреждение Федеральный научный агроинженерный центр ВИМ (ФГБНУ ФНАЦ ВИМ) | Method and plant for anaerobic processing of liquid organic wastes |
| RU2690463C1 (en) * | 2019-01-29 | 2019-06-03 | Дмитрий Александрович Ковалев | Method of anaerobic processing of liquid organic wastes |
| RU2714815C1 (en) * | 2019-08-01 | 2020-02-19 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Biogas production method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107674887A (en) * | 2017-09-11 | 2018-02-09 | 山东博斯特生物能源科技有限公司 | The method and apparatus of the integrated dilute ammonia pretreatment of high temperature and anaerobic fermentation production biogas |
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- 2015-04-21 CN CN201510191633.XA patent/CN104762202A/en active Pending
- 2015-04-21 CN CN201610409714.7A patent/CN106047680A/en active Pending
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| US20060254079A1 (en) * | 2004-07-19 | 2006-11-16 | Earthrenew, Inc. | Process and apparatus for manufacture of fertilizer products from manure and sewage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107136543A (en) * | 2017-05-17 | 2017-09-08 | 安徽康桥生物科技有限公司 | The quick-fried device of sudden strain of a muscle for handling stalk |
| RU2687415C1 (en) * | 2018-06-29 | 2019-05-13 | Федеральное государственное бюджетное научное учреждение Федеральный научный агроинженерный центр ВИМ (ФГБНУ ФНАЦ ВИМ) | Method and plant for anaerobic processing of liquid organic wastes |
| CN109096000A (en) * | 2018-10-24 | 2018-12-28 | 北方民族大学 | A kind of stalk processing method and system |
| RU2690463C1 (en) * | 2019-01-29 | 2019-06-03 | Дмитрий Александрович Ковалев | Method of anaerobic processing of liquid organic wastes |
| RU2714815C1 (en) * | 2019-08-01 | 2020-02-19 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") | Biogas production method |
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| Publication number | Publication date |
|---|---|
| CN106047680A (en) | 2016-10-26 |
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