CN109161476A - A kind of apparatus and method of electricity fermentation methane phase - Google Patents
A kind of apparatus and method of electricity fermentation methane phase Download PDFInfo
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- CN109161476A CN109161476A CN201810930180.1A CN201810930180A CN109161476A CN 109161476 A CN109161476 A CN 109161476A CN 201810930180 A CN201810930180 A CN 201810930180A CN 109161476 A CN109161476 A CN 109161476A
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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
- 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
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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
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
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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
- C12M35/00—Means for application of stress for stimulating the growth of microorganisms or the generation of fermentation or metabolic products; Means for electroporation or cell fusion
- C12M35/02—Electrical or electromagnetic means, e.g. for electroporation or for cell fusion
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
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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 kind of device and methods of electricity fermentation methane phase, and described device includes tank body, potentiostat, working electrode, auxiliary electrode and reference electrode；Working electrode, auxiliary electrode and reference electrode are connect with potentiostat respectively；Working electrode and auxiliary electrode are set to tank interior, and reference electrode is set between working electrode and auxiliary electrode；Top of the tank is provided with methane collection mouth；Tank base is provided with agitating device.Have the advantages that simple process, starting speed is fast, anaerobic digestion methane phase performance is stable by the method for electricity fermentation methane phase in the present invention, condition ratio is reacted with conventional anaerobic digestion, method methane phase rate in the present invention improves 20-30%, 10-15% can be improved in Methane production, and it is stable, maintenance cost is low, and the resource recycling that can be widely used for the organic solid wastes such as livestock and poultry feces, rubbish from cooking, municipal sludge, agricultural waste utilizes and safe disposal.
Description
Technical field
The present invention relates to a kind of apparatus and method of electricity fermentation methane phase.
Background technique
Currently, the organic solid wastes such as feces of livestock and poultry, house refuse, municipal sludge, agricultural waste that China generates every year
More than 5,000,000,000 tons, wherein about 3,800,000,000 tons of livestock and poultry feces, about 400,000,000 tons of house refuse, about 1,200,000,000 tons of agricultural waste.They are both one
Great environomental pollution source, while being also huge biomass resource and energy depot, energy value is roughly equal to 1,000,000,000 tons of standard coals,
Manurial value (N, P, K and organic matter) is more than the year output of China's chemical fertilizer.Recycling organic waste is neutralizing " environmental pollution "
" scarcity of resources " two big contradictory key, is great livelihood issues and strategic issue.
Common organic solid waste processing disposal options specifically include that landfill method, incineration method and biologic treating technique at present
(aerobic compost, anaerobic digestion) etc..Wherein, landfill method takes up a large area, and a large amount of percolates generated after landfill be easy to cause ground
Lower water pollution；Rule is burned because investment operating cost is huge, the waste gas from incinerator and burning ash of generation are disposed difficult.Based on disposition
Expense and waste resource recovery angle consider, biologic treating technique be considered as most attraction, sustainable organic solid it is useless
Object method of disposal.Biologic treating technique mainly includes aerobic compost and anaerobic digestion, wherein anaerobic digestion methane production technology, can
Effectively recycling methane as clean energy source, have it is simple and easy to do, low energy consumption, the advantages of having a wide range of application.
However, since anaerobic digestion methane phase is the multistage Biochemical processes under multiple-microorganism synergistic effect,
Methane phase rate is limited vulnerable to many factors, therefore the problem that generally existing methane phase is inefficient.For conventional anaerobic digestion
Problem existing for methane phase technology, many scholars at home and abroad carried out reactor transformation and operation optimization (CN104593432A,
CN108101333A, CN103555566A, CN104478178A, CN103555566A), but the generally existing technique of these patents
Complexity, produces the disadvantages of gas is unstable at methane phase low efficiency, is unfavorable for promoting and applying on a large scale, thus cannot fundamentally solve
Certainly defect existing for anaerobic digestion methane phase.
There is unique advantage using electrochemical method regulation debirs anaerobic digestion methane phase process.This is because should
Method effectively increases extracellular electronics using electric field driven power and supplies, and ATP in extracellular microbial is promoted to synthesize, the micro- life of directed change
Object metabolic pathway, to improve anaerobic digestion methane phase performance.Chinese invention patent CN101875962B discloses a kind of " biology
The method of electrochemical techniques screening high-efficiency methanogen floras ", screens to obtain with thermophilic by applying electrode in anaerobic digester system
Mixed bacterial based on producing hydrogen and methane bacterium.But this method is easy to cause the aggregation of dead organisms film on working electrode, reduces electricity
Sub- transmission efficiency, to affect anaerobic digestion methane phase performance.CN105621826A discloses a kind of " pretreatment joint electrification
The method of technology promotion residual active sludge anaerobic digestion methane phase ", mainly improves sludge using a variety of preprocess methods
Biodegradability.But the device is complicated because of needed for and additional substance is more, leads to complex process, higher cost, is unfavorable for advising greatly
The popularization and application of mould.Chinese patent CN104743663B, which is disclosed, " strengthens the life of methane phase using high organic matter high ammonia-nitrogen wastewater
Object electrochemical reaction appts and method ", the multistage electrochemical reaction slot by being equipped with cation-exchange membrane reduce ammonia nitrogen to anaerobism
The toxic action of microorganism.But the device is not suitable for organic solid waste processing mainly in high-concentration ammonia nitrogenous wastewater.
Through document and patent retrieval, the electricity fermentation methane phase method of machine waste is found no, it is organic also to have no that it is applied to
The precedent of waste processing disposition.
Summary of the invention
Existing complex process, methane phase efficiency when the purpose of the present invention is for conventional anaerobic digestion processing debirs
It is low, produce gas it is unstable the disadvantages of, provide it is a kind of electricity fermentation methane phase device and method.This method has simple process, starting
The advantage that speed is fast, gas producing efficiency is high.This has important application potentiality for the popularization and application of anaerobic digestion techniques.
Working electrode, auxiliary electrode and reference electricity are set in organic solid waste anaerobic digestion reaction vessel in the present invention
Pole, while certain polarization potential being provided to working electrode.Electrode effectively facilitates CO directly as electron donor2Micro-reduction
Methanogenesis (HCO3 -+9H++8e-→CH4+3H2O)；The potential difference of generation can also adjust NADH/NAD in microbial body+It is flat
Weighing apparatus improves methanogen activity to orient regulating and controlling microbial gene expression in vivo, enzymatic synthesis and metabolic pathway；In addition, addition
Conductive materials can speed up the direct electron transfer between syntrophism zymogenous bacteria and methanogen, promote syntrophism methane phase mistake
Journey.By the above different approaches, accelerates anaerobic digestion starting, significantly improve anaerobic digestion methane phase performance.
The technical solution used in the present invention is:
A kind of device of electricity fermentation methane phase, including tank body, potentiostat, working electrode, auxiliary electrode and reference electrode；
Working electrode, auxiliary electrode and reference electrode are connect with potentiostat respectively；Working electrode and auxiliary electrode are set in tank body
Portion, reference electrode are set between working electrode and auxiliary electrode；Top of the tank is provided with methane collection mouth；Tank base setting
There is agitating device.
Further, working electrode is at least one of stainless steel plate, graphite plate, carbon felt, carbon cloth electrode；Auxiliary electrode
For at least one of carbon felt, carbon cloth, graphite electrode；Reference electrode is Hg/HgO electrode, Ag/AgCl electrode, saturation calomel electricity
One of which in extremely.
Further, the current potential of working electrode setting is -0.1V to -1.0V vs.SCE.
Further, the current potential of working electrode setting is -0.6V to -0.8V vs.SCE.
A kind of method of electricity fermentation methane phase, comprising the following steps:
1) it is mixed in a certain ratio anaerobe and fermentation raw material to obtain fermenting mixture；
2) conductive materials are added in fermenting mixture, are stirred evenly；
3) fermenting mixture containing conductive materials is placed in device described in claims 1 to 3 and is fermented.
Further, fermentation raw material is organic solid waste, including sewage treatment plant excess sludge, feces of livestock and poultry, farming
One of organic solid wastes such as object stalk, house refuse, gardens dry branches and fallen leaves are a variety of.
Further, the moisture content of fermentation raw material is 70wt%-90wt%.
Further, the moisture content of fermentation raw material is 75%-90%.
Further, anaerobe from through taming activated sludge or electro-chemical activity bacterium.
Further, the inoculum concentration of anaerobe is the 1%-10% of fermentation raw material.
Further, the inoculum concentration of anaerobe is the 2.5%-5% of fermentation raw material.
Further, conductive materials are selected from graphite particle, charcoal, active carbon, tourmaline powder, magnetic iron oxide powder
One of or it is a variety of.
Further, the addition concentration of conductive materials is 0.1-5.0g/L.
Further, the addition concentration of conductive materials is 1.25-5g/L.
The beneficial effects of the present invention are:
(1) device of electricity fermentation methane phase provided by the invention need to be only arranged on the basis of conventional anaerobic digestion reactor
Three-electrode system (i.e. working electrode, auxiliary electrode and reference electrode), and a small amount of conductive materials, nothing are added during the fermentation
It needs to carry out original reactor any other transformation, therefore promotes convenient, great application prospect.
(2) the present invention provides a kind of method of electricity fermentation methane phase, have that simple process, starting speed be fast, anaerobism disappears
Change the stable advantage of methane phase performance.
(3) condition ratio is reacted with conventional anaerobic digestion, the method methane phase rate in the present invention improves 20-30%, methane
10-15% can be improved in yield, and stable, and maintenance cost is low.It can be widely used for livestock and poultry feces, rubbish from cooking, municipal administration
The resource recycling of the organic solid wastes such as sludge, agricultural waste utilizes and safe disposal.
Detailed description of the invention
Fig. 1 is electricity fermentation methane phase schematic device, 1- potentiostat, 2- working electrode, 3- reference electrode, 4- auxiliary electricity
Pole, 5- agitating device, 6- conductive materials, 7- methane collection mouth, 8- tank body.
Specific embodiment
A kind of device of electricity fermentation methane phase, including tank body 8, potentiostat 1, working electrode 2, auxiliary electrode 4 and reference
Electrode 3；Working electrode 2, auxiliary electrode 4 and reference electrode 3 are connect with potentiostat 1 respectively；Working electrode 2 and auxiliary electrode 4
It is set to inside tank body 8, reference electrode 3 is set between working electrode 2 and auxiliary electrode 4；Methane receipts are provided at the top of tank body 8
Collect mouth 7；8 bottom of tank body is provided with agitating device 5.
Further, working electrode is at least one of stainless steel plate, graphite plate, carbon felt, carbon cloth electrode；Auxiliary electrode
For at least one of carbon felt, carbon cloth, graphite electrode；Reference electrode is Hg/HgO electrode, Ag/AgCl electrode, saturation calomel electricity
One of which in extremely.
Further, the current potential of working electrode setting is -0.1V to -1.0V vs.SCE.
Further, the current potential of working electrode setting is -0.6V to -0.8V vs.SCE.
A kind of method of electricity fermentation methane phase, comprising the following steps:
4) it is mixed in a certain ratio anaerobe and fermentation raw material to obtain fermenting mixture；
5) conductive materials are added in fermenting mixture, are stirred evenly；
6) fermenting mixture containing conductive materials is placed in device described in claims 1 to 3 and is fermented.
Further, fermentation raw material is organic solid waste, including sewage treatment plant excess sludge, feces of livestock and poultry, farming
One of organic solid wastes such as object stalk, house refuse, gardens dry branches and fallen leaves are a variety of.
Further, the moisture content of fermentation raw material is 70wt%-90wt%.
Further, the moisture content of fermentation raw material is 75%-90%.
Further, anaerobe from through taming activated sludge or electro-chemical activity bacterium.
Further, the inoculum concentration of anaerobe is the 1%-10% of fermentation raw material.
Further, the inoculum concentration of anaerobe is the 2.5%-5% of fermentation raw material.
Further, conductive materials are selected from graphite particle, charcoal, active carbon, tourmaline powder, magnetic iron oxide powder
One of or it is a variety of.
Further, the addition concentration of conductive materials is 0.1-5.0g/L.
Further, the addition concentration of conductive materials is 1.25-5g/L.
Below in conjunction with Fig. 1 and embodiment, the present invention is further explained, it should be appreciated that following embodiment is merely to illustrate this hair
It is bright rather than limit the scope of the invention.Without departing from the spirit and substance of the case in the present invention, to the method for the present invention,
Modifications or substitutions made by step or condition, all belong to the scope of the present invention.
Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Embodiment 1
A kind of electricity fermentation methane phase method, using cylindrical reactor, diameter 30cm is highly 60cm, working electrode
And auxiliary electrode is graphite electrode, area 8cm2；Reference electrode is saturated calomel electrode.
A kind of electricity fermentation methane phase method, the specific steps are as follows:
(1) using sewage treatment plant excess sludge as raw material, 24 hours are stood, adjusting moisture content is 87.3%；
(2) by after domestication anaerobic sludge and the resulting raw material to be processed of step (1) in 2.5% ratio mix；
(3) conductive materials graphite particle is added in the fermenting mixture of step (2) by the dosage of 1.25g/L, is stirred
It mixes uniformly；
(4) fermenting mixture of step (3) is placed in electric installation for fermenting, connects potentiostat, setting potential is -0.6V
Vs.SCE carries out anaerobic digestion methane phase.
The results show that reacting by 18 days, the methane production of electricity fermentation methane phase technique is improved than traditional zymotic technique
98.1%, the anaerobic digestion lag phase time foreshortened to 3.0 days from 4.4 days；Volatile organic matter in electricity fermentation methane phase technique
(VS) total removal rate reaches 43.9%, improves 12.6% than traditional zymotic technique, effectively facilitates sludge reduction；Electrochemical credit
Analysis is the results show that the capacitance of electricity fermentation methane phase technique is 3.26mFcm-2, 58.3% is increased than traditional zymotic technique,
Prove that electric zymotechnique can promote the generation of redox mediators, to accelerate extracellular electron transmission；Electricity fermentation methane phase work
The economic benefit of skill is 3.1 times of traditional zymotic technique.
Embodiment 2
A kind of electricity fermentation methane phase method, using rectangular reactor according, having a size of 60 × 40 × 30cm, working electrode and auxiliary
Helping electrode is carbon cloth electrode, area 12cm2；Reference electrode is saturated calomel electrode.
A kind of electricity fermentation methane phase method, its step are as follows:
(1) using pig farm excreta as raw material, 18 hours are stood, adjusting moisture content is 80.6%；
(2) by after domestication anaerobic sludge and the resulting raw material to be processed of step (1) in 3% ratio mix；
(3) conductive materials graphite particle is added in the fermenting mixture of step (2) by the dosage of 3g/L, stirring is equal
It is even；
(4) fermenting mixture of step (3) is placed in electric installation for fermenting, connects potentiostat, setting potential is -0.8V
Vs.SCE carries out anaerobic digestion methane phase.
The results show that reacting by 24 days, the methane production of electricity fermentation methane phase technique is improved than traditional zymotic technique
46.5%, the anaerobic digestion lag phase time foreshortened to 3.9 days from 5.2 days；Volatile organic matter in electricity fermentation methane phase technique
(VS) total removal rate has reached 35.2%, improves 8.4% than traditional zymotic technique；The capacitance ratio of electricity fermentation methane phase technique
Traditional zymotic technique increases 26.7%；The economic benefit of electricity fermentation methane phase technique is 2.2 times of traditional zymotic technique.
Embodiment 3
A kind of electricity fermentation methane phase method, using cylindrical reactor, diameter 30cm is highly 60cm, working electrode
And auxiliary electrode is graphite electrode, area 9cm2；Reference electrode is saturated calomel electrode.
A kind of electricity fermentation methane phase method, its step are as follows:
(1) it using agricultural crop straw as raw material, crushes and mixes, adding water to adjust moisture content is 75%；
(2) anaerobic sludge after taming and the resulting raw material to be processed of step (1) are mixed in 5% ratio；
(3) conductive materials charcoal is added in the fermenting mixture of step (2) by the dosage of 5g/L, stirring is equal
It is even；
(4) fermenting mixture of step (3) is placed in electric installation for fermenting, connects potentiostat, setting potential is -0.8V
Vs.SCE carries out anaerobic digestion methane phase.
The results show that reacting by 28 days, the methane production of electricity fermentation methane phase technique is improved than traditional zymotic technique
68.3%, the anaerobic digestion lag phase time foreshortened to 5.5 days from 6.3 days；Volatile organic matter in electricity fermentation methane phase technique
(VS) total removal rate reaches 30.9%, improves 7.6% than traditional zymotic technique；The capacitance of electricity fermentation methane phase technique is than passing
System zymotechnique increases 22.4%；The economic benefit of electricity fermentation methane phase technique is 1.9 times of traditional zymotic technique.
Claims (10)
1. it is a kind of electricity fermentation methane phase device, it is characterised in that: including tank body, potentiostat, working electrode, auxiliary electrode and
Reference electrode；Working electrode, auxiliary electrode and reference electrode are connect with potentiostat respectively；Working electrode and auxiliary electrode setting
In tank interior, reference electrode is set between working electrode and auxiliary electrode；Top of the tank is provided with methane collection mouth；Tank body
Bottom is provided with agitating device.
2. the apparatus according to claim 1, it is characterised in that: working electrode is stainless steel plate, graphite plate, carbon felt, carbon cloth
At least one of electrode；Auxiliary electrode is at least one of carbon felt, carbon cloth, graphite electrode；Reference electrode is Hg/HgO electricity
Pole, Ag/AgCl electrode, the one of which in saturated calomel electrode.
3. the apparatus of claim 2, it is characterised in that: the current potential of working electrode setting is -0.1V to -1.0V
vs.SCE。
4. a kind of method of electricity fermentation methane phase, it is characterised in that: the following steps are included:
1) it is mixed in a certain ratio anaerobe and fermentation raw material to obtain fermenting mixture；
2) conductive materials are added in fermenting mixture, are stirred evenly；
3) fermenting mixture containing conductive materials is placed in progress anaerobic digestion production in device described in claims 1 to 3
Methane.
5. according to the method described in claim 4, it is characterized by: fermentation raw material is organic solid waste, including sewage treatment
One of organic solid wastes such as plant excess sludge, feces of livestock and poultry, agricultural crop straw, house refuse, gardens dry branches and fallen leaves or
It is a variety of.
6. method according to claim 4 or 5, it is characterised in that: the moisture content of fermentation raw material is 70wt%-90wt%.
7. according to the method described in claim 4, it is characterized by: anaerobe is from activated sludge or electrification through taming
Learn active bacteria.
8. the method according to claim 4 or 7, it is characterised in that: the inoculum concentration of anaerobe is fermentation raw material
1%-10%.
9. according to the method described in claim 4, it is characterized by: conductive materials be selected from graphite particle, charcoal, active carbon,
One of tourmaline powder, magnetic iron oxide powder are a variety of.
10. the method according to claim 4 or 9, it is characterised in that: the addition concentration of conductive materials is 0.1-5.0g/L.
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Cited By (8)
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| CN110511964A (en) * | 2019-09-24 | 2019-11-29 | 哈尔滨工业大学 | A method of step hydrogen-producing and ethanol-producing is coupled with electricity fermentation based on microorganism syntrophism interaction |
| CN111100880A (en) * | 2019-11-25 | 2020-05-05 | 浙江大学 | Magnetic corpuscle promotes microbial electric fermentation to reduce CO2Process for producing methane |
| CN111172024A (en) * | 2019-12-31 | 2020-05-19 | 福建农林大学 | Device for in-situ characterization of inter-species direct electron transfer |
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| CN112501213A (en) * | 2020-06-23 | 2021-03-16 | 哈尔滨工业大学 | Cathode electric fermentation method for preparing hydrogen and butanol by using electron transfer mediator to strengthen fermentation of clostridium beijerinckii |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511964A (en) * | 2019-09-24 | 2019-11-29 | 哈尔滨工业大学 | A method of step hydrogen-producing and ethanol-producing is coupled with electricity fermentation based on microorganism syntrophism interaction |
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| CN111100880A (en) * | 2019-11-25 | 2020-05-05 | 浙江大学 | Magnetic corpuscle promotes microbial electric fermentation to reduce CO2Process for producing methane |
| CN111172024A (en) * | 2019-12-31 | 2020-05-19 | 福建农林大学 | Device for in-situ characterization of inter-species direct electron transfer |
| CN112501213A (en) * | 2020-06-23 | 2021-03-16 | 哈尔滨工业大学 | Cathode electric fermentation method for preparing hydrogen and butanol by using electron transfer mediator to strengthen fermentation of clostridium beijerinckii |
| CN112501213B (en) * | 2020-06-23 | 2023-06-06 | 哈尔滨工业大学 | Cathode electrofermentation method for preparing hydrogen and butanol by enhancing clostridium beijerinckii fermentation by using electron transfer mediator |
| FR3111909A1 (en) * | 2020-06-26 | 2021-12-31 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Biomass digester comprising structures on which wind up and / or hang on and / or contain one or more electrically conductive materials and comprising carbon |
| FR3111911A1 (en) * | 2020-06-26 | 2021-12-31 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Biomass digester comprising a wall lined with an electrically conductive material and comprising carbon |
| FR3111910A1 (en) * | 2020-06-26 | 2021-12-31 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Biomass digester comprising a structure floating on the surface of the biomass under which a material comprising carbon is attached |
| CN111926045A (en) * | 2020-08-20 | 2020-11-13 | 重庆大学 | Electrochemical reactor and method for preparing methane by utilizing organic solid waste anaerobic fermentation |
| CN111926045B (en) * | 2020-08-20 | 2023-01-31 | 重庆大学 | Electrochemical reactor and method for preparing methane by utilizing organic solid waste anaerobic fermentation |
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Application publication date: 20190108 |