CN1858213A - Method for co-producing hydrogen and methane by biomass and solid organic waste fermenting method - Google Patents
Method for co-producing hydrogen and methane by biomass and solid organic waste fermenting method Download PDFInfo
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 104
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- 238000000034 method Methods 0.000 title claims abstract description 46
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- 238000000855 fermentation Methods 0.000 claims abstract description 40
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- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 claims abstract description 18
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- 229940107700 pyruvic acid Drugs 0.000 claims abstract description 9
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims abstract description 8
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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Abstract
The present invention relates to hydrogen and methane producing method and especially method of co-producing hydrogen and methane with biomass and solid organic waste and through fermentation. The method includes hydrolyzing and acidifying biomass and solid organic waste to produce pyruvic acid, short chain fatty acid and small amount of H2 and CO2; fermenting the mixture of pyruvic acid and short chain fatty acid under the action of fermenting hydrogenogen to produce great amount of hydrogen as well as small molecular weight side products ethanol, acetic acid, propionic acid and butyric acid; and further fermenting to convert the small molecular weight side products into methane under the action of methanogen. The apparatus can treat waste effectively to produce clean energy source material, and has high energy source converting rate and high matrix utilizing rate.
Description
Technical field
The present invention relates to a kind of hydrogen and methane production method, more particularly, the present invention relates to a kind of method of utilizing biomass and solid organic castoff fermentation method co-producing hydrogen and methane.
Background technology
Because hydrogen has very high energy density, products of combustion is a water, and does not have contaminative, so be a kind of ideal clean energy, the 21 century mankind will welcome " Hydrogen Energy economy ".Conventional hydrogen production process mainly is to extract from fossil oils such as Sweet natural gas, oil, coal or produce by water electrolysis method, needs to consume a large amount of fossil oil and energy, and produces a large amount of the pollution.Thereby the biological hydrogen production that at present many in the world countries drop into huge fund research is a biotechnology of utilizing the physiological metabolism effect decomposing organic matter generation hydrogen of microorganism, and it is a kind of renewable energy source that meets the strategy of sustainable development.Mainly be divided into photosynthetic method and fermentation method two big classes aspect the biological hydrogen production research at present, wherein fermentation method has advantages such as hydrogenogens kind growth velocity is fast, hydrogen production potential is high, reaction need not light source, fermentation bed material source is wide, so hydrogen and suitability for industrialized production are produced in easier realization continuously.
Present many cities have all produced a large amount of industry and domestic refuse, cause serious environmental to pollute.According to statistics in 1999, the solid waste that China's paper-making industry, textile industry, food, beverage and tobacco produce added up accumulating amount over the years and has reached 6,540,000 tons, more than 1,420,000 square metre of floor space, and annual production reaches about 800,000 tons.The domestic refuse volume of cargo in storage over the years that there are nearly 700 cities in China in 2000 reaches more than 60 hundred million tons, more than 500,000,000 square metre of floor space, and the rubbish annual production reaches about 1.5 hundred million tons, and annual rate increase with 8-10%.At present the whole nation existing more than 200 city has been absorbed in the serious situation that rubbish surrounds the city, how municipal solid wastes carried out the active demand that minimizing, innoxious and recycling become China's sustainable development of socio-economy.Organic composition accounts for 30-55% in the general domestic waste of China, water accounts 40-60%, and dirt accounts for 10-50%, and calorific value generally is lower than 4000kJ/kg.Along with Economic development, it is formed in and presents the water ratio reduction generally and the characteristics of organic compositions such as stationery, fabric, timber and plastics increase in recent years.The garbage sorting recovery has been realized in present many cities; all can carry out the mass-producing collection and treatment to a large amount of garbages every days such as many grains, vegetables, meat packing plant and selling market; and all kinds of hotels, restaurant, dining room and residential building etc. generally also all have special rubbish from cooking collection box; these degradable organic wastes are focused on, created favourable condition for its extensive recycling undoubtedly.Traditional city refuse landfill can produce a large amount of biogas under microbial process, be methane and CO more than 90% in the biogas that active landfill yard produces
2, still can produce greenhouse gases CO when but methane is used to burn
2, cause certain topsoil.Utilize biomass and solid organic castoff significant to the renewable energy source and the minimizing environmental pollution of development clean and effective with microbe fermentation method hydrogen manufacturing.
For the biomass and solid organic castoff that have a large capacity and a wide range in town and country, they are that undissolved carbohydrate, protein and lipoid are formed by the complicated macromole of three major types mainly, and the hydrogen process is produced in its anaerobic digestion can be divided into hydrolysis, acidifying and product hydrogen product acetate three phases.Because the complicacy of hydrogen process is produced in solid organic castoff degraded, there are three big difficult points in its ferment for hydrogen production: the energy transformation efficiency of (1) product hydrogen is low, only is methanogenic 40% as the energy transformation efficiency of animal manure fermentation and hydrogen production; (2) by product organic acid accumulation suppresses the biological degradation process, and acidification reaction will stop when the organic fatty acid concentration is accumulated to 13000-20000mg/L in the Gary domestic refuse fermenting process, and this moment solid organic matters vaporization rate still less than 4%; (3), need to seek and effectively to suppress the method that methanogen activates hydrogenogens simultaneously for anaerobic activated sludge.
Present domestic the application in the disclosed patent, there is report to utilize anaerobic activated sludge (Chinese patent application 92114474.1) to carry out the hydrogen manufacturing of organic waste water fermentation method, because anaerobic activated sludge does not pass through any processing, mainly control with the pH value, and contain anaerobic bacteriums such as a large amount of methanogens, hydrochloride reducing bacteria in the anaerobic activated sludge, these bacteriums can utilize hydrogen and survive, so the total amount of hydrogen has produced certain influence with reclaiming; And a kind of fermented liquid for biologically producing hydrogen (Chinese patent application 00105462.7) preparation method, its hydrolysis prepared the nutrient solution needs 1～4 month, and preparing fermented liquid simultaneously also needs 1～4 month, and required setup time is longer.Above-mentioned disclosed relevant patent all is to obtain H by fermentation method
2As target product, and the energy transformation efficiency that produces hydrogen merely lowly is a great problem that exists at present.
Summary of the invention
Main purpose of the present invention is to overcome deficiency of the prior art, provides a kind of method of utilizing biomass and solid organic castoff fermentation method co-producing hydrogen and methane, to significantly improve energy transformation efficiency.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The invention provides the method for a kind of biomass and solid organic castoff fermentation method co-producing hydrogen and methane, may further comprise the steps:
(1) hydrolysis under the condition of 30 ℃～60 ℃ of temperature, pH value 4.5～7.0 with biomass and solid organic castoff generates the lipid acid of soluble carbohydrate, amino acid and long-chain;
(2), generate pyruvic acid, short chain fatty acid and small amount of H with the mixture acidifying under the condition of 30 ℃～60 ℃ of temperature, pH value 4.5～7.0 that obtains after the said hydrolyzed
2, CO
2
(3) pyruvic acid and short-chain fat acid mixture generate a large amount of hydrogen under the effect of fermentation and hydrogen production bacterium, and obtain small molecular organic acid by product ethanol, acetate, propionic acid and butyric acid, and controlled temperature is 30 ℃～60 ℃ in the product H-H reaction, and the pH value is 4.5～7.0;
(4) the rapid middle small molecular organic acid by product of previous step continues fermentation generation methane under the methanogen effect, and controlled temperature is 30 ℃～60 ℃ in the product methane reaction, and the pH value is 7.0～8.0.
Described step (1) hydrolysis reaction and step (2) acidification reaction carry out in same hydrolysis and acidification reactor; Biomass and solid organic castoff fill in hydrolysis and the acidification reaction bed, and the organic acid mixture autoreactor bottom cycle that reaction obtains is to the top, to improve reaction efficiency.
Described step (3) is produced H-H reaction and is carried out in organic acid product hydrogen reactor; Organic acid produces in the hydrogen reactor a protruded packing bed, and organic acid carries out the upflowing circulation to improve reaction efficiency in reactor.
Described step (4) is produced methane reaction and is carried out in methane-producing reactor; One protruded packing bed is arranged in the methane-producing reactor, send in this reactor, carry out the upflowing circulation to improve reaction efficiency with producing the residual small molecular organic acid by product of hydrogen process.
Compared with prior art, the invention has the beneficial effects as follows:
Method provided by the invention utilizes biomass and solid organic castoff to produce hydrogen, and the pollution that both can control environment has produced the novel clean energy again, greatly reduces the cost of hydrogen manufacturing.The present invention collects the residual small molecular organic acid by product of fermentation and hydrogen production process and continues to produce methane, thereby realize the coproduction of hydrogen and methane, make the energy transformation efficiency and the matrix utilization ratio of total system all obtain breakthrough raising, energy transition rate can increase substantially 89.0% by 33.5% of simple fermentation and hydrogen production in theory.
Operational management of the present invention is simple, and is with low cost, is easy to safeguard, dependable performance is stable.This technology is applicable to the fermentation process of each biolobic material and solid organic castoff, both can efficiently handle waste, reduce its severe contamination environment, but the hydrogen of coproduction high density again and methane gas, can realize the recycling of waste, thereby turn waste into wealth.
The present invention has the very high fermentation co-producing hydrogen and the ability of methane gas, be fit to very much city refuse landfill, rural area biomass waste processing enter and all kinds of grain, food, vegetables, melon and fruit and meat packing plant etc. and carry out application, have good economic and social benefit.
Description of drawings
Fig. 1 is apparatus of the present invention schemas
Embodiment
Below the present invention is further described by specific embodiment.
In the anaerobic activated sludge that municipal sewage plant or methane-generating pit etc. locates to gather, generally all contain a certain amount of decomposition acid-producing bacteria (as protein decomposing bacteria Proteolyticbacteria, amylolysis bacterium Amylolyticbacteria and cellulose-decomposing bacterium Cellulose decomposing bacteria etc.) and fermentation and hydrogen production bacterium (as clostridium butylicum Clostridium butylic and enteroaerogen Enterobacter aerogenes etc.).Moisture 95% city sewage and sludge is as shown in table 1 by kind and the quantity of contained bacterium before and after the anaerobically fermenting.The decomposition acid-producing bacteria of anaerobic organic matter can produce extracellular enzyme (as protein enzyme Protein enzyme, amylase Amylase and cellulase Cellulose enzyme etc.), thereby generate extracellular enzyme hydrolysis organism (reference: Zheng Yuanjing, Yang Hailin, Lin Jinyin compiles, the organic waste materials anaerobic fermentation technology, Chemical Industry Press).
| Bacterial species | Sludge types | |
| Fresh sludge | Fermented sludge | |
| Protein decomposing bacteria | 1.0×10 8 | 10 6 |
| The amylolysis bacterium | 5.0×10 7 | 10 6 |
| Cellulose-decomposing bacterium | 1.0×10 4 | 5×10 5 |
| The organic decomposition bacterium | 50～500 | 10 6 |
The active cells number (individual) of (water ratio 95%) in the table 1 1g mud
In 55 kinds of methanogens of 17 genus that document can be looked into, about 90% methanogen all will utilize H
2And CO
2Perhaps require at H
2Utilize the substrate of organic acid under the existence condition, and sarcina methanica (Methanosarcina) only utilizes acetate, methyl alcohol and methylamine etc. just can needn't utilize H fully as the substrate of growth and generation methane as its growth and generation methane
2And CO
2Therefore, the present invention proposes the glucose fermentation process is divided into two stages: first stage is to utilize the fermentation and hydrogen production bacterium to finish the reaction process that produces hydrogen, hydrogen is extracted out as the finished product collected; Subordinate phase is to transfer to another reactor with producing small molecular organic acid remaining in the hydrogen process, utilizes sarcina methanica inoculation back to continue fermentation and produces methane, thereby realize the joint process of hydrogen and two kinds of end products of methane.
Device comprises that hydrolysis and acidification reactor 1, organic acid produce hydrogen reactor 3 and methane-producing reactor 6 in the present embodiment, and hydrolysis is produced hydrogen reactor 3 tops with acidification reactor 1 bottom, product pump 2, organic acid product hydrogen reactor 3 bottoms, organic acid, product pump 5 is connected successively with methane-producing reactor 6 bottoms; Product pump 2 outlets link to each other with acidification reactor 1 top with hydrolysis, and product pump 4 outlets are produced hydrogen reactor 3 bottoms with organic acid and linked to each other.On three reactors thermometer and acidometer are installed all.Reactor head is provided with gas discharge outlet, and gas discharge outlet is provided with under meter respectively.A product pump 9 connects the material inlet of hydrolysis and acidification reactor 1, and material inlet extends to inside reactor and connects a material feeder 7.A product pump 8 connects hydrolysis and acidification reactor 1 top and product pump 4 inlets.Organic acid produces hydrogen reactor 3 and methane-producing reactor 6 is up-flow reactor, and inside is provided with the granulated glass sphere bed of packings respectively, and bed of packings is provided with porous plate up and down respectively.Valve all is set between reactor, the pump, is convenient to the adjusting process operation.
The operational process that installs in the present embodiment is as follows:
During startup, the anaerobic activated sludge of heat pre-treatment and substratum bed material are transported to hydrolysis and acidification reactor 1 top material inlet with product pump 9, and send in the reaction bed that is filled with biomass and solid organic castoff by material feeder 7.The complicated macromole organic matter of three classes does not promptly dissolve carbohydrate, protein and lipoid etc. and issues in the effect of extracellular enzyme at first that unboiled water is separated and acidization in this reaction bed, and acidifying becomes the small amount of H of pyruvic acid, short chain fatty acid and the gas phase of liquid phase under the acid-producing bacteria effect then
2, CO
2Deng.The temperature of utilizing thermometer control solid materials bed to be suitable for the bacterial strain metabolism, in time to extract from the bed top and collects fermentation gas about 37 ℃, can cause restraining effect to acidization to prevent hydrogen partial pressure Li Taigao.By product pump 2 organic acid solution that degraded obtains is carried out recirculation, improve the utilization ratio of bacterial strain in acid solution to improve the hydrogen rate of producing.
Because the organic acid salt accumulation can produce restraining effect to the acidification reaction process, therefore hydrolysis, acidization and acid solution being produced the hydrogen process is separated, the acidometer that adopts hydrolysis and acidification reactor 1 bottom to install detects organic acid concentration, and regularly the organic acid solution that accumulates in hydrolysis and the acidification reactor 1 is delivered to organic acid by product pump 2 and produce in the hydrogen reactor 3, make hydrolysis and acidification reactor 1 interior organic acid be discharged from when also reaching threshold concentration far away, guaranteed normally carrying out of solid materials acidization.
Produce in the hydrogen reactor 3 at organic acid, organic acid solution produces hydrogen and produces acetic acidreaction under the metabolism of its entrained hydrogenogens strain.The upflowing bed of packings that adopts not only can prolong the reaction times of acid solution bed material and bacterial strain, and can prevent effectively that bacterial strain runs off with the waste liquid blowdown.Produce the hydrogen that hydrogen reactor 3 tops obtain a large amount of high densitys at organic acid, and the organic acid solution of outlet can be recycled to the bottom inlet that organic acid produces hydrogen reactor 3 by product pump 4, perhaps is recycled to the top inlet of hydrolysis and acidification reactor 1 by product pump 8.
For realizing high energy transformation efficiency, organic acid is produced the small molecular organic acid liquid that is rich in acetate that produces hydrogen process remnants in the hydrogen reactor 3 by fermentation to be transferred in the methane-producing reactor 6, send into simultaneously and have a liking for the acetate sarcina methanica, continue to finish methanogenic process as substrate with the small molecular organic acid of remnants by product pump 5.The terminal residual solution of methane-producing reactor 6 outlets is carried out recirculation at this bed self,, and increase the reaction times to improve methane production with the utilization ratio of raising organic acid solution and methanogen.Thereby realized the joint process of hydrogen and methane, made the energy transformation efficiency of system and matrix utilization ratio all obtain breakthrough raising.
Specific embodiment 1:
(1) anaerobic activated sludge of collection municipal sewage plant after boiling under water sealing condition, is inoculated in the substratum, and domestication was cultivated 7 days in constant incubator, to obtain the bulk fermentation hydrogenogens as inoculum.As the fermentation bed material, is 35 ℃, the condition of pH value 5.0 under hydrolysis in temperature with the potato after pulverizing, and generates the lipid acid of soluble carbohydrate, amino acid and long-chain;
(2), generate pyruvic acid, short chain fatty acid and small amount of H with the mixture acidifying under the condition of 35 ℃ of temperature, pH value 5.0 that obtains after the said hydrolyzed
2, CO
2
The hydrolysis reaction of this step and acidification reaction carry out in same hydrolysis and acidification reactor; Potato fills in hydrolysis and the acidification reaction bed, and the organic acid mixture that reaction obtains can the autoreactor bottom cycle return reactor head, to improve reaction efficiency.
(3) pyruvic acid and short-chain fat acid mixture are under fermentation and hydrogen production bacterium such as clostridium butylicum effect, and fermentation produces small molecular organic acid by products such as a large amount of hydrogen, carbonic acid gas and ethanol, acetate, propionic acid, butyric acid.Controlled temperature is 35 ℃ in the fermenting process, and control pH value is 5.0.
The product H-H reaction of this step is produced in the hydrogen reactor at organic acid and is carried out; Organic acid produces in the hydrogen reactor a protruded packing bed, and organic acid carries out the upflowing circulation to improve reaction efficiency in reactor.
(4) small molecular organic acid remaining in the fermentation and hydrogen production process is imported in the methane-producing reactor, utilize sarcina methanica inoculation back to continue fermentation and produce methane, control reaction temperature is 35 ℃, and control pH value is 7.5.
The product methane reaction of this step carries out in methane-producing reactor; One protruded packing bed is arranged in the methane-producing reactor, send in this reactor, carry out the upflowing circulation to improve reaction efficiency with producing the residual small molecular organic acid by product of hydrogen process.
The joint process of hydrogen and two kinds of end products of methane can be expressed as a net reaction:
, then the energy transformation efficiency theoretical value of co-producing hydrogen and methane can be up to 89.0% (far above the energy transformation efficiency theoretical value 33.5% of simple product hydrogen).In whole fermenting experiment process, be converted to 1mol glucose and can produce 2.3mol hydrogen and 1.15mol methane, then the whole energy transformation efficiency actual value of co-producing hydrogen and methane can reach (and the energy transformation efficiency actual value of simple fermentation and hydrogen production only is about 19.3%) about 51.2%, so adopt this joint process can make energy transformation efficiency and matrix utilization ratio all obtain breakthrough raising.
Specific embodiment 2:
The step of present embodiment is identical with specific embodiment 1, wherein:
Controlled temperature is 30 ℃ in step (1) hydrolysis reaction, and the pH value is 4.5; Controlled temperature is 30 ℃ in step (2) acidification reaction, and the pH value is 4.5; Controlled temperature is 30 ℃ in the H-H reaction of step (3) product, and the pH value is 4.5; Controlled temperature is 30 ℃ in step (4) the product methane reaction, and pH is 7.0.
Specific embodiment 3:
The step of present embodiment is identical with specific embodiment 1, wherein:
Controlled temperature is 60 ℃ in step (1) hydrolysis reaction, and the pH value is 7.0; Controlled temperature is 60 ℃ in step (2) acidification reaction, and the pH value is 7.0; Controlled temperature is 60 ℃ in the H-H reaction of step (3) product, and the pH value is 7.0; Controlled temperature is 60 ℃ in step (4) the product methane reaction, and pH is 8.0.
Among the present invention the bacterium of using or bacterial classification be existing known bacterial classification, for example, fermentation and hydrogen production bacterium (clostridium butylicum), methanogen (sarcina methanica), fermentation and hydrogen production bacterium (clostridium butylicum) bacterium of carrying in a large number wherein for anaerobic activated sludge self, sarcina methanica is the bacterial classification that can buy on the market, and for example sarcina methanica can select that University Of Suzhou produces for use has a liking for the acetate sarcina methanica.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above examples of implementation, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (4)
1, the method for a kind of biomass and solid organic castoff fermentation method co-producing hydrogen and methane may further comprise the steps:
(1) hydrolysis under the condition of 30 ℃～60 ℃ of temperature, pH value 4.5～7.0 with biomass and solid organic castoff generates the lipid acid of soluble carbohydrate, amino acid and long-chain;
(2), generate pyruvic acid, short chain fatty acid and small amount of H with the mixture acidifying under the condition of 30 ℃～60 ℃ of temperature, pH value 4.5～7.0 that obtains after the said hydrolyzed
2, CO
2
(3) pyruvic acid and short-chain fat acid mixture generate a large amount of hydrogen under the effect of fermentation and hydrogen production bacterium, and obtain small molecular organic acid by product ethanol, acetate, propionic acid and butyric acid, and controlled temperature is 30 ℃～60 ℃ in the product H-H reaction, and the pH value is 4.5～7.0;
(4) the rapid middle small molecular organic acid by product of previous step continues fermentation generation methane under the methanogen effect, and controlled temperature is 30 ℃～60 ℃ in the product methane reaction, and the pH value is 7.0～8.0.
According to the method for the described biomass of claim 1 and solid organic castoff fermentation method co-producing hydrogen and methane, it is characterized in that 2, described step (1) hydrolysis reaction and step (2) acidification reaction carry out in same hydrolysis and acidification reactor; Biomass and solid organic castoff fill in hydrolysis and the acidification reaction bed, and the organic acid mixture autoreactor bottom cycle that reaction obtains is returned reactor head, to improve reaction efficiency.
According to the method for the described biomass of claim 1 and solid organic castoff fermentation method co-producing hydrogen and methane, it is characterized in that 3, described step (3) is produced H-H reaction and carried out in organic acid product hydrogen reactor; Organic acid produces in the hydrogen reactor a protruded packing bed, and organic acid carries out the upflowing circulation to improve reaction efficiency in reactor.
According to the method for the described biomass of claim 1 and solid organic castoff fermentation method co-producing hydrogen and methane, it is characterized in that 4, described step (4) is produced methane reaction and carried out in methane-producing reactor; One protruded packing bed is arranged in the methane-producing reactor, send in this reactor, carry out the upflowing circulation to improve reaction efficiency with producing the residual small molecular organic acid by product of hydrogen process.
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| CN101638670B (en) * | 2009-07-07 | 2012-09-19 | 中国科学院广州能源研究所 | Method for co-producing hydrogen and methane by utilizing dry anaerobic fermentation of solid organic wastes |
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| CN101638670B (en) * | 2009-07-07 | 2012-09-19 | 中国科学院广州能源研究所 | Method for co-producing hydrogen and methane by utilizing dry anaerobic fermentation of solid organic wastes |
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| CN105861760A (en) * | 2016-06-17 | 2016-08-17 | 中国科学院成都生物研究所 | Regulation and control method for fruit and vegetable waste high-load stable anaerobic digestion |
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