CN105063094A - Method for preparing biogas through activated carbon, kitchen garbage and faeces - Google Patents
Method for preparing biogas through activated carbon, kitchen garbage and faeces Download PDFInfo
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
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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
- 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
- Y02P20/59—Biological synthesis; Biological purification
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention relates to a method for preparing biogas through activated carbon, kitchen garbage and faeces, and belongs to the technical field of renewable energy. The method specifically comprises the following steps that the kitchen garbage and the faeces are put into a pretreatment tank to be mixed and heated at constant temperature, and a mixture is obtained; the mixture, the activated carbon and inoculums are put into at least one anaerobic fermentation tank to be heated at constant temperature, stirring and fermentation are carried out, and biogas and fermentation residues are obtained. The method has the advantages that the allothigene active carbon is added, so that the efficiency of fermentatively producing biogas and methane with kitchen garbage and faeces as raw materials is greatly improved, and running is stable; meanwhile, production cost can be lowered, and the method is suitable for large-scale popularization; in addition, the amount of cleared household garbage can be effectively reduced, resources can be saved, generated foul gas can be controlled, and energy saving and emission reducing can be achieved.
Description
Technical field
The invention belongs to technical field of renewable energy sources, be specifically related to a kind of method utilizing gac, rubbish from cooking and ight soil to prepare biogas.
Background technology
The raw material of tradition Biogas adopts feces of livestock and poultry mostly, but due to reasons such as rapid economic development, grain rises in price, problem has appearred feces of livestock and poultry there is lack of raw materials in a lot of place., time serious, even there is the not phenomenon such as aerogenesis in traditional biogas production usually for want of raw material and cause aerogenesis unstable.In addition, due to the restriction of raw material inwardness, using traditional feces of livestock and poultry as anaerobic digestion raw material, methane gas producing is usually lower, is about 350L/kgVS.
Rubbish from cooking is the common name of the leftover that family and eating and drinking establishment are abandoned, it is the important component part of China's domestic refuse, and along with the high speed development of catering trade, generation increases sharply, rubbish from cooking main component comprises rice and flours food residues, vegetables, animals and plants wet goods, chemical constitution, based on organic constituent, contains the trace elements such as a certain amount of calcium, magnesium, potassium and iron simultaneously.The principal feature of rubbish from cooking is that moisture content is large, perishable, nutritive ingredient is many, forms and floats larger with factors such as seasons.Its proterties and smell all make a very bad impression to environmental health, and easily grow the objectionable impurities such as pathogenic micro-organism, mycotoxin.
The rubbish from cooking treatment technology of comparative maturity mainly contains following several method both at home and abroad at present: 1, directly feed pigs, though be used as feed directly to feed pigs it can be avoided the pollution of environment, but may multiple pathogens and the harmful microorganism such as foot and mouth disease, swine fever germ be contained in the rubbish from cooking of unprocessed mistake, thus cause the cross infection between people and animals, there is food chain risk; 2, landfill, landfill realizes the minimizing of rubbish, but rubbish from cooking is mainly based on carbohydrate and dish leaf, pericarp, and water ratio is high, and landfill easily produces a large amount of percolate, severe contamination underground water; 3, burn, burning also is one of the effective ways removing rubbish, but in rubbish from cooking organism and moisture content high, incinerating combustion value is low, atmosphere pollution; 4, to itch well composting technology, though compared with all the other methods, the method is effectively realizing occupying advantage in innoxious, the minimizing of rubbish from cooking, resource utilization, but because the water ratio of rubbish from cooking own is high, add that the moisture that organic substance decomposing produces is full of heap body, cause heating up slowly in composting process, produce a large amount of percolates, odor pollution is serious, greatly constrains the treatment progress of compost.
In recent years, biogas, as efficient, clean, the reproducible energy, is subject to the growing interest of people.Biological producing methane has environmental friendliness and the feature such as energy consumption is low, microorganism can be utilized the organic matter in rubbish from cooking to be under anaerobic decomposed into the biogas energy with high added value, have the multiple superiority such as pollution treatment, environmental protection and production capacity.Therefore, rubbish from cooking anaerobically fermenting Biogas just like one of emerging technology having become current refuse treatment is utilized.But the problems such as gas producing efficiency is low, fluctuation of service that this technology also exists.
Rubbish from cooking is rich in the carbohydrate such as grease, albumen, it is suitable biogas fermentation material, but because its larger molecular organics difficulty decomposition, C/N are than large, the voltaile fatty acid (VFA) produced during fermentation can suppress the activity of methanobacteria, therefore, rubbish from cooking is carried out anaerobic digestion as single raw material and also there will be the low phenomenon of aerogenesis, be about 280L/kgVS.And human and animal excreta contains more organonitrogen, the degradation production NH of organonitrogen
4+-N has stronger surge capability, can weaken the pH decline that VFA (VFA) causes.Therefore, select human and animal excreta and rubbish from cooking to carry out producing marsh gas through mixed anaerobic fermentation to be used gradually.
Carry out mixing anaerobic digestion process for producing biogas with rubbish from cooking and ight soil and possess the advantages such as simply intensive, resource utilization is high, operating performance is better, but the objectionable impurities contained by raw material and inoculum itself is as salts substances, heavy metal, S
2-etc. entering in fermentation system, the living environment of methanogen can be destroyed, thus larger negative impact is produced to final gas production rate.Because germs collect can be got up by some sorbent materials, increase the density of microorganism, objectionable impurities in fermented feed liquid can be adsorbed simultaneously and keep the environment favourable to microorganism growth, thus allow microorganism degrade better organic matter, accelerate volatile acid consumption, improve gas production rate, being head it off, eliminating these negative impacts to improve output by adding external source sorbent material.
Gac is a kind of charcoal through special processing, and have countless tiny hole, surface-area is huge, and the surface-area of every gram of gac is 500 ~ 1500m
2.Gac has very strong physical adsorption and chemisorption function, but also has detoxification.Detoxification is exactly make use of its huge area, is adsorbed in the micropore of gac by poisonous substance, thus stops the absorption of poisonous substance.Meanwhile, gac can be combined with number of chemical material, thus stops the absorption of these materials.Gac, as the good sorbent material of one, is widely applied in field of waste water treatment.
Summary of the invention
The object of the invention is to: utilize added value low for the existing rubbish from cooking being rich in grease, albumen etc. organic, particularly for the general problem such as not high of current rubbish from cooking per unit area yield biogas efficiency, a kind of method utilizing gac, rubbish from cooking and ight soil to prepare biogas is provided, by adding xenobiotics gac to improve the efficiency that rubbish from cooking and ight soil are fermenting raw materials production biogas and methane, the method technique is simple, and stable, production cost can also be reduced simultaneously and be suitable for promoting on a large scale; In addition also can effectively reduce the domestic refuse amount of clearing, economize on resources, control the generation of foul gas, realize energy-saving and emission-reduction.
Technical solution of the present invention is that this preparation of marsh-gas comprises following concrete steps:
A, drops in pre-treatment tank by rubbish from cooking and ight soil by total solids 1 ~ 2:1, mixing is thermostatically heating also, obtains mixture; The time mixed in described step a is 5 ~ 7 hours; The temperature of the thermostatically heating in described step a is 35 ± 1 DEG C ~ 45 ± 1 DEG C;
B, by mixture, screening be 20 ~ 100 object gacs and inoculum mixing put into thermostatically heating at least one anaerobic fermentation tank, stir fermentation, obtain biogas and fermentation residues respectively; It is adopt the charging of spiral plug flow device that mixing in described step b drops into; The time of stirring in described step b is 12 ~ 24 hours; The temperature of the thermostatically heating in described step b is 35 ± 1 DEG C ~ 45 ± 1 DEG C.
Wherein, in described step b, the quantity of anaerobic fermentation tank is 4, and volume is 5L.
Wherein, described rubbish from cooking refers to fruits and vegetables, pericarp, meat, vegetables, vegetable and animals oils and rice and flours food residues etc.; Ight soil refer in chicken manure, pig manure and cow dung one or more.
Wherein, the gac added in fermentor tank in described step b is the powdered carbon of analytical pure (AR), and add-on is the rubbish from cooking of step a gained and 40% ~ 60% of ight soil mixture total solids.
Wherein, anaerobic fermentation tank described in step b is single-phase or solid-liquid two-phase anaerobic reactor; Inoculum is the one in the natural pond liquid of old methane-generating pit, the anaerobically digested sludge of city domestic sewage treatment plant and plant's mud, and the add-on of inoculum is 10% ~ 15% of rubbish from cooking in step b, ight soil and Mixture of Activated Carbon total solids.
Wherein, the mixture in described step b in fermentor tank, makes its carbon-nitrogen ratio between 20 ~ 30:1 by the ratio between adjustment material.
Wherein, the mixture water ratio in described step b in fermentor tank is 60 ~ 75%.
Wherein, in the fermentation latter stage of step b, when fermentation unit daily output tolerance lower than average daily output tolerance 30% time, reaction terminates, and again feeds intake and carries out new round fermentation.
Wherein, in described step b, fermentation residues is after being separated, and obtains natural pond liquid and solid organic fertilizer.
Wherein, described natural pond liquid, through leaving standstill 4 ~ 7 hours, after discharge supernatant liquor, obtains Liquid organic fertilizer.
Advantage of the present invention and beneficial effect are:
1, the feature of very high adsorption activity is possessed for gac, a certain amount of exogenous material gac of suitable interpolation, be mixing raw material anaerobically fermenting together with ight soil with rubbish from cooking, overcome salts substances in fermented feed liquid, the objectionable impuritiess such as heavy metal suppress the activity of methanobacteria thus reduce this defect of biogas output, further raising biogas output and methane content, produce biogas technology system for hybrid anaerobic fermentation and a new thinking is provided, fermentation raw material and the additives of producing biogas are enriched further, change the awkward present situation that current technique is mainly fermentation raw material with feces of livestock and poultry, also meal kitchen residuum is made to obtain rational recycling.
2, suppress the activity of methanobacteria for overcoming objectionable impurities in fermented feed liquid thus reduce this defect of biogas output, by adding a certain amount of gac, raising is the transformation efficiency that fermentation raw material produces biogas with rubbish from cooking and ight soil, operating process is simple, equipment requirements is low and stable, convenient management, environmental friendliness, is beneficial to large-scale promotion application.
3, by stirring material in anaerobic fermentation tank, avoiding solid accumulation, causing fermentation not exclusively, improving anaerobism efficiency simultaneously, shortening the anaerobism time, reducing the volume of anaerobic fermentation tank.
4, by adding gac, and be the efficient Biogas of fermenting raw materials with rubbish from cooking, efficiently solve the problem of current anaerobic fermentation raw material deficiency, also the quality of burning biogas is directly improved, produce the solid, liquid state fertilizer of a large amount of high-quality simultaneously, solve rural area because applying quantity of chemical fertilizer is excessive, the short soil compaction problem caused of fertilizer, also can bring considerable economic benefit simultaneously.
5, the present invention effectively reduce the domestic refuse amount of clearing, the foul gas that economizes on resources, controls generation to realize, in energy-saving and emission-reduction etc., there is important practice significance and value.
Accompanying drawing explanation
Fig. 1 is the change curve of embodiment 1 enforcement group and control group cumulative gas production and methane content.
Fig. 2 is the change curve of embodiment 2 enforcement group and control group cumulative gas production and methane content.
Fig. 3 is the change curve of embodiment 3 enforcement group and control group cumulative gas production and methane content.
Embodiment
Further illustrate technical solution of the present invention below in conjunction with specific embodiment, these embodiments can not be interpreted as it is restriction to technical scheme.
The experimental technique used in following embodiment if no special instructions, is ordinary method.
Material used in following embodiment, reagent etc., if no special instructions, obtain all from commercial channels.
Rubbish from cooking in following embodiment, from Wang Ying town, Huaiyin District, Huai'an refuse transfer station, chooses rubbish from cooking after carrying out large class rough segmentation by domestic refuse.
The percentage sign " % " related in the present invention, if not specified, refers to mass percent; But the per-cent of solution, unless otherwise specified, refers in solution 100mL containing solute some grams; Per-cent between liquid, refers to the ratio of capacity 20 DEG C time.
Embodiment 1: produce biogas according to following steps
(1) from the domestic refuse chosen, sort out the rubbish from cooking based on rice and flours food residues, then drop in pre-treatment tank with chicken manure together with total solids 1:1, mixing also constant temperature 35 ± 1 DEG C is heated 5 hours, obtains mixture;
(2) by adjust ratio step (1) mixture, screening be that 20 object gacs and inoculum mix, spiral impeller is adopted to put into constant temperature 35 ± 1 DEG C heating in 2 anaerobic fermentation tanks successively, stir 12 hours fermentation 30 days, obtain biogas and fermentation residues respectively; Wherein, gac add-on is the rubbish from cooking of step (1) gained and 40% of chicken manure mixture total solids; Inoculum is the natural pond liquid of the old methane-generating pit of water ratio 92.8%, and add-on is 10% of rubbish from cooking, chicken manure and Mixture of Activated Carbon total solids; In fermentor tank, the water ratio of mixture is 60%, and carbon-nitrogen ratio is 20:1;
(3) fermentation residues is after being separated, and obtains natural pond liquid and solid organic fertilizer; Natural pond liquid, through leaving standstill 4 hours, after discharge supernatant liquor, obtains Liquid organic fertilizer.
The change curve of cumulative gas production and methane content is shown in Fig. 1, and the same day, gas production rate obviously declined, and carries out next round and feed intake and inoculation after reaction is taken turns in end one.
Add gac produces biogas promoter action to rubbish from cooking and chicken manure mixed fermentation for convenience of explanation, also done one group of contrast case (namely not adding gac), implementation step is same as described above simultaneously.
Embodiment 2: produce biogas according to following steps
(1) sort out from the domestic refuse chosen based on the rubbish from cooking of fruits and vegetables, pericarp, then drop in pre-treatment tank with pig manure together with total solids 1.5:1, mixing also constant temperature 40 ± 1 DEG C is heated 6 hours, obtains mixture;
(2) by adjust ratio step (1) mixture, screening be that 50 object gacs and inoculum mix, spiral impeller is adopted to put into constant temperature 40 ± 1 DEG C heating in 2 anaerobic fermentation tanks successively, stir 18 hours fermentation 33 days, obtain biogas and fermentation residues respectively; Wherein, gac add-on is the rubbish from cooking of step (1) gained and 50% of pig manure mixture total solids; Inoculum is municipal sewage plant's anaerobically digested sludge of 95.2%, and add-on is 12.5% of rubbish from cooking, pig manure and Mixture of Activated Carbon total solids; In fermentor tank, the water ratio of mixture is 70%, and carbon-nitrogen ratio is 25:1;
(3) fermentation residues is after being separated, and obtains natural pond liquid and solid organic fertilizer; Natural pond liquid, through leaving standstill 6 hours, after discharge supernatant liquor, obtains Liquid organic fertilizer.
The change curve of cumulative gas production and methane content is shown in Fig. 2, and the same day, gas production rate obviously declined, and carries out next round and feed intake and inoculation after reaction is taken turns in end one.
Add gac produces biogas promoter action to rubbish from cooking and pig manure mixed fermentation for convenience of explanation, also done one group of contrast case (namely not adding gac), implementation step is same as described above simultaneously.
Embodiment 3: produce biogas according to following steps
(1) sort out from the domestic refuse chosen based on rubbish from cooking that is carnivorous, vegetable and animals oils, then drop in pre-treatment tank with cow dung together with total solids 2:1, mixing also constant temperature 45 ± 1 DEG C is heated 7 hours, obtains mixture;
(2) by adjust ratio step (1) mixture, screening be that 100 object gacs and inoculum mix, spiral impeller is adopted to put into constant temperature 45 ± 1 DEG C heating in 2 anaerobic fermentation tanks successively, stir 24 hours fermentation 35 days, obtain biogas and fermentation residues respectively; Wherein, gac add-on is the rubbish from cooking of step (1) gained and 60% of cow dung mixture total solids; Inoculum is the slaughterhouse mud of water ratio 93.1%, add-on be rubbish from cooking, cow dung and Mixture of Activated Carbon total solids 15%; In fermentor tank, the water ratio of mixture is 75%, and carbon-nitrogen ratio is 30:1;
(3) fermentation residues is after being separated, and obtains natural pond liquid and solid organic fertilizer; Natural pond liquid, through leaving standstill 7 hours, after discharge supernatant liquor, obtains Liquid organic fertilizer.
The change curve of cumulative gas production and methane content is shown in Fig. 3, and the same day, gas production rate obviously declined, and carries out next round and feed intake and inoculation after reaction is taken turns in end one.
Add gac produces biogas promoter action to rubbish from cooking and cow dung mixed fermentation for convenience of explanation, also done one group of contrast case (namely not adding gac), implementation step is same as described above simultaneously.
Find out from Fig. 1,2,3, compared to control group, by adding a certain amount of gac, the rubbish from cooking in three case study on implementation under different condition, different ratio and the fermentation methane output of ight soil and average methane content have raising by a relatively large margin.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. utilize gac, rubbish from cooking and ight soil to prepare the method for biogas, it is characterized in that this preparation of marsh-gas comprises the following steps:
A, drops in pre-treatment tank by rubbish from cooking and ight soil by total solids 1 ~ 2:1, mixing is thermostatically heating also, obtains mixture; The time mixed in described step a is 5 ~ 7 hours; The temperature of the thermostatically heating in described step a is 35 ± 1 DEG C ~ 45 ± 1 DEG C;
B, by mixture, screening be 20 ~ 100 object gacs and inoculum mixing put into thermostatically heating at least one anaerobic fermentation tank, stir fermentation, obtain biogas and fermentation residues respectively; It is adopt the charging of spiral plug flow device that mixing in described step b drops into; The time of stirring in described step b is 12 ~ 24 hours; The temperature of the thermostatically heating in described step b is 35 ± 1 DEG C ~ 45 ± 1 DEG C.
2. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, it is characterized in that: in described step b, the quantity of anaerobic fermentation tank is 4, volume is 5L.
3. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, is characterized in that: described rubbish from cooking refers to fruits and vegetables, pericarp, meat, vegetables, vegetable and animals oils and rice and flours food residues etc.; Ight soil refer in chicken manure, pig manure and cow dung one or more.
4. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, it is characterized in that: the gac added in fermentor tank in described step b, for the powdered carbon of analytical pure (AR), add-on is the rubbish from cooking of step a gained and 40% ~ 60% of ight soil mixture total solids.
5. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, is characterized in that: anaerobic fermentation tank described in step b is single-phase or solid-liquid two-phase anaerobic reactor; Inoculum is the one in the natural pond liquid of old methane-generating pit, the anaerobically digested sludge of city domestic sewage treatment plant and plant's mud, and the add-on of inoculum is 10% ~ 15% of rubbish from cooking in step b, ight soil and Mixture of Activated Carbon total solids.
6. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, is characterized in that: the mixture in described step b in fermentor tank, makes its carbon-nitrogen ratio between 20 ~ 30:1 by the ratio between adjustment material.
7. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, is characterized in that: the mixture water ratio in described step b in fermentor tank is 60 ~ 75%.
8. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, it is characterized in that: in the fermentation latter stage of step b, when fermentation unit daily output tolerance lower than average daily output tolerance 30% time, reaction terminates, and again feeds intake and carries out new round fermentation.
9. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 1, is characterized in that: in described step b, fermentation residues is after being separated, and obtains natural pond liquid and solid organic fertilizer.
10. the method utilizing gac, rubbish from cooking and ight soil to prepare biogas according to claim 9, is characterized in that: described natural pond liquid, through leaving standstill 4 ~ 7 hours, after discharge supernatant liquor, obtains Liquid organic fertilizer.
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Cited By (6)
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| CN107338273A (en) * | 2017-08-02 | 2017-11-10 | 农业部沼气科学研究所 | A kind of method for promoting needle mushroom pin producing methane through anaerobic fermentation using activated carbon |
| CN107512841A (en) * | 2017-08-07 | 2017-12-26 | 张诗敏 | Duck shed dejecta treatment method simple to operate |
| CN109182390A (en) * | 2018-10-11 | 2019-01-11 | 山东省科学院能源研究所 | The method of easy acidified waste water (object) anaerobic digestion methane phase |
| CN110317836A (en) * | 2019-07-12 | 2019-10-11 | 华北电力大学 | A method of improving sanitary sewage anaerobic fermentation gas production efficiency |
| CN110498586A (en) * | 2019-07-20 | 2019-11-26 | 上海交通大学 | A method of chicken manure producing methane through anaerobic fermentation characteristic is improved by addition charcoal |
| CN113307466A (en) * | 2020-12-03 | 2021-08-27 | 江南大学 | Method for accelerating starting of anaerobic digestion system for hot alkali pretreatment sludge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338273A (en) * | 2017-08-02 | 2017-11-10 | 农业部沼气科学研究所 | A kind of method for promoting needle mushroom pin producing methane through anaerobic fermentation using activated carbon |
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| CN110498586A (en) * | 2019-07-20 | 2019-11-26 | 上海交通大学 | A method of chicken manure producing methane through anaerobic fermentation characteristic is improved by addition charcoal |
| CN113307466A (en) * | 2020-12-03 | 2021-08-27 | 江南大学 | Method for accelerating starting of anaerobic digestion system for hot alkali pretreatment sludge |
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Application publication date: 20151118 |