CN103146759B - Low-temperature methane accelerator and preparation method thereof - Google Patents
Low-temperature methane accelerator and preparation method thereof Download PDFInfo
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- CN103146759B CN103146759B CN201310072242.7A CN201310072242A CN103146759B CN 103146759 B CN103146759 B CN 103146759B CN 201310072242 A CN201310072242 A CN 201310072242A CN 103146759 B CN103146759 B CN 103146759B
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- low
- temperature
- biogas
- accelerator
- 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
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- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention relates to a low-temperature methane accelerator and a preparation method thereof. The low-temperature methane accelerator is characterized by comprising ingredients in parts by weight: the ratio of Fe salt to Co slat to Ni salt to yeast powder is equal to 3:(1-2):(1-2):(1-2). The low-temperature methane accelerator has the advantages of simple ingredients and low cost, is easy to prepare and convenient and fast to use, and the purposes of removing low-temperature restriction and efficiently producing the methane can be realized by taking measures of adding the methane fermentation accelerator. The low-temperature methane accelerator also has the advantage that the labor cost is greatly reduced, and is an accelerator capable of being widely applied to low-temperature methane fermentation, thereby being capable of meeting the production requirements of various scales.
Description
Technical field
The present invention relates to a kind of low temperature biogas promotor and preparation method thereof.
Background technology
Biogas production process is one and is combined by multiple-microorganism, the complex biochemical process of alternating action, temperature is an important factor that affects biogas fermentation, the optimal temperature of biogas production is generally the mesophilic range of 25 DEG C-45 DEG C, temperature is during lower than 10 DEG C, the normal physiological activity of biogas fermentation bacterium is subject to severe inhibition, and the micro-biogas of generation cannot be applied.NORTHWEST CHINA area winter severe cold, and the time length is long, three season of winter in spring and autumn temperature on average lower than 12 DEG C, and day and night temperature is large, this situation has greatly restricted biogas engineering stable and high effective operation, and biogas engineering is made a big impact applying of this area.Therefore; carry out mass-producing livestock and poultry feces low temperature fermentation and the research of temperature raising and maintaining gordian technique and invention; set up and be applicable to China's severe cold area low-temperature methane fermentation technical system; realize that under low temperature, biogas engineering is stable, aerogenesis is efficient and with low cost; for applying of China's cold district methane engineering technology provides technical support, become particularly important.
At present, in realizing by engineering measures such as being incubated, heating, temperature or high-temperature anaerobic fermentation are the most important technique means of current biogas engineering steady running, especially have better effects to solving the problem that under the low temperature of severe cold area, biogas fermentation speed declines, aerogenesis is few.Although can realize the normal operation of severe cold area biogas engineering by insulation, heating technology, the certain construction investment of corresponding increase, increased engineering operation cost simultaneously.Therefore how not increase insulation, to heat on the basis of engineering measure, the technical barrier that the low-temperature methane fermentation technology of research and development based on biogas fermentation flora Optimum Regulation cannot normally be moved solution severe cold area biogas engineering has important practical significance.
And being one, marsh gas fermentation processes combined by multiple-microorganism, the complex biochemical process of alternating action, low temperature will directly affect the physiologically active of methane fermentating microorganism, especially the crucial flora methanogen in fermentation chain end, cause gas producing efficiency sharply to decline, the activity that therefore how to activate at low temperatures methane fermentating microorganism flora is the key that solves biogas High-efficient Production under low temperature.Based on above-mentioned situation, this research, from low temperature bacterial classification acclimatization culture and two angles of chemical promoter research and development, is optimized the activity of methane fermentating microorganism flora under regulation and control low temperature, to improve biogas fermentation efficiency.
Summary of the invention
One of object of the present invention is to provide a kind of low temperature biogas promotor, can be used in the lifting that realizes biogas output in the low-temperature methane fermentation process of various scales;
Two of object of the present invention is to provide a kind of preparation method of above-mentioned promotor.
A kind of low temperature biogas promotor, its special feature is, consists of by mass parts: Fe salt: Co salt: Ni salt: yeast powder=3:1-2:1-2:1-2.
Wherein Fe salt is FeCl
24H
2o, Co salt is CoCl
26H
2o, Ni salt is NiCl
26H
2o.
Wherein crude protein >=50% in yeast powder, robust fibre >=15%, coarse ash≤5%, moisture≤10%.
Wherein yeast powder adopts yeast to soak powder.
Wherein yeast soaks powder employing Angel Yeast and soaks powder FM888.
A preparation method for above-mentioned low temperature biogas promotor, its special feature is, comprises the steps: first Fe salt, Co salt and Ni salt to be put into respectively to container, adding distil water is made saturated solution, add again yeast powder, be uniformly mixed, obtain low temperature biogas promotor.
Physiological activity for the fermenting bacteria existing in low-temperature methane fermentation process is subject to severe inhibition, aerogenesis is few, temperature raising and maintaining technology has high input, and manages difficult problem, the present invention developed a kind of simple and practical, with low cost, increase the low temperature biogas promotor of gas production rate.A kind of trace element and the somatomedin utilized that the invention belongs to solid organic castoff biologic treating technique field promotes solid organic castoff to produce the promotor of biogas, utilize ion dissolution characteristic and the biological activity of promotor to remove to improve microorganism growth environment, stimulate microbic activity, thereby biogas output under raising low temperature, recycle to greatest extent the bioenergy in waste, make it at temperature lower than 15 DEG C in the situation that, engineering volume yield rate all maintains 0.3m
3.m
-3d
-1above, reach as high as 0.37m
3.m
-3d
-1,even if the lowest temperature starts near 0 DEG C, engineering volume yield rate is still stabilized in 0.25m
3.m
-3d
-1above; Methane factor of created gase maintains more than 50% always, the highest by 58.9%.In low temperature biogas promotor of the present invention, contain the metallic element useful to methanobacteria, wherein in metallic element, the quality percentage composition of iron, cobalt, nickel reaches 0.25%. somatomedin and reaches 0.5%, can provide good nutrient environment for low temperature methanogen floras, promote the Fast Growth of its flora, thereby improve aerogenesis effect.
Advantage of the present invention is: composition is simple, with low cost, preparation easily, easy to use fast, by adding the measure of biogas fermentation accelerant, can realize and remove that low temperature suppresses and the object of highly effective methane-producing.Also having advantages of the human cost of greatly reducing, is a kind of promotor that can be widely used in low-temperature methane fermentation, can meet the production requirement of various scales.
Brief description of the drawings
Accompanying drawing 1 is the affect figure of low temperature biogas promotor on methane gas producing amount in proof test.
Embodiment
Embodiment 1:
Concrete steps comprise to be prepared low temperature promotor and adds two parts, carries out according to the following steps:
One, take the FeCl of 3 parts by mass fraction
2.4H
2o, the CoCl of 1 part
2.6H
2o, the NiCl of 1 part
2.6H
2the yeast powder (Angel Yeast that adopts Angel Yeast Co.,Ltd to produce in this example soaks powder FM888) of O and 1 part;
Two, by the FeCl taking
2.4H
2o, CoCl
2.6H
2o and NiCl
2.6H
2o, puts into respectively container, and adding distil water is made saturated solution (under normal temperature), then the yeast powder that adds step 1 to take, and is uniformly mixed, and obtains low temperature biogas promotor;
Three, before biogas fermentation, carry out the sludge acclimatization of psychrophile kind, then by dosage 0.3%(W/W) add low temperature biogas promotor, stir after entering pond.Observe aerogenesis effect.
By following verification experimental verification effect of the present invention:
Test conditions: spirit farming animals are herded in Development Co., Ltd's pig farm biogas engineering in Ningxia, carrying out low temperature bacterial classification mud in early stage adds on the basis of test and has carried out chemical promoter and low temperature bacterial classification mud combined utilization test in place, the condition that adds is in table 1, test was since on November 1st, 2011, monitored continuously 10 days, test-results is shown in Fig. 1.
Table 1 produces biogas chemical promoter and adds condition
Testing biogas promotor used prepares according to following steps: one, take the FeCl of 3 parts by mass fraction
2.4H
2o, the CoCl of 1 part
2.6H
2o, the NiCl of 1 part
2.6H
2the Angel Yeast of O and 1 part soaks powder FM888; Two, by the FeCl taking
2.4H
2o, CoCl
2.6H
2o and NiCl
2.6H
2o, puts into respectively container, and adding distil water is made saturated solution (under normal temperature), then adds the Angel Yeast that step 1 takes to soak powder FM888, is uniformly mixed, and obtains low temperature biogas promotor.
Test-results as shown in Figure l, from figure l, adds on the low temperature bacterial classification mud operation basis of 30 days in October, add after aforesaid promotor, decline than October 5-8 DEG C in the situation that at 11 month temperatures, except the 8th, 9,10 beyond the highest heavens, engineering volume yield rate all maintains 0.3m
3.m
-3d
-1above, reach as high as 0.37m
3.m
-3d
-1even at the 8th day, the 9th day and the 10th day, the lowest temperature started near 0 DEG C, engineering volume yield rate is still stabilized in 0.25m
3.m
-3d
-1above; Methane factor of created gase maintains more than 50% always, reaches the highest by 58.9% at the 6th day.
More than test explanation, is not providing on the basis of external source temperature raising and maintaining engineering measure, relies on chemical promoter of the present invention and low temperature bacterial classification mud combined utilization to realize the Optimum Regulation to biogas fermentation flora, has ensured that engineering stablizes aerogenesis under environment at low temperatures.
Claims (1)
1. a preparation method for low temperature biogas promotor, is characterized in that, comprises the steps:
Step 1, take the FeCl of 3 parts by mass fraction
2.4H
2o, the CoCl of 1 part
2.6H
2o, the NiCl of 1 part
2.6H
2the Angel Yeast of O and 1 part soaks powder FM888;
Step 2, by the FeCl taking
2.4H
2o, CoCl
2.6H
2o and NiCl
2.6H
2o, puts into respectively container, and adding distil water is made saturated solution, then adds the Angel Yeast that step 1 takes to soak powder FM888, is uniformly mixed, and obtains low temperature biogas promotor.
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| CN201310072242.7A CN103146759B (en) | 2013-03-07 | 2013-03-07 | Low-temperature methane accelerator and preparation method thereof |
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|---|---|---|---|
| CN201310072242.7A CN103146759B (en) | 2013-03-07 | 2013-03-07 | Low-temperature methane accelerator and preparation method thereof |
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| CN103146759A CN103146759A (en) | 2013-06-12 |
| CN103146759B true CN103146759B (en) | 2014-07-23 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512989A (en) * | 2013-09-27 | 2015-04-15 | 南京宏博环保实业有限公司 | Process capable of increasing gas yield of biogas |
| CN106915884B (en) * | 2017-04-10 | 2020-08-21 | 兰州理工大学 | Method for producing biogas by using municipal sludge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414539A1 (en) * | 1989-08-25 | 1991-02-27 | Ngk Insulators, Ltd. | Method for treating organic waste water by methane fermentation. |
| CN102732566A (en) * | 2012-07-24 | 2012-10-17 | 黑龙江省农业科学院农村能源研究所 | Cold-region methane accelerator and preparation method thereof |
| CN102925493A (en) * | 2012-11-21 | 2013-02-13 | 江苏省农业科学院 | Accelerant for producing biogas by straw anaerobic digestion as well as preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06246288A (en) * | 1993-02-25 | 1994-09-06 | Mitsubishi Kakoki Kaisha Ltd | Operation method for high temperature upward stream type anaerobic sludge bed device |
-
2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414539A1 (en) * | 1989-08-25 | 1991-02-27 | Ngk Insulators, Ltd. | Method for treating organic waste water by methane fermentation. |
| CN102732566A (en) * | 2012-07-24 | 2012-10-17 | 黑龙江省农业科学院农村能源研究所 | Cold-region methane accelerator and preparation method thereof |
| CN102925493A (en) * | 2012-11-21 | 2013-02-13 | 江苏省农业科学院 | Accelerant for producing biogas by straw anaerobic digestion as well as preparation method and application thereof |
Non-Patent Citations (5)
| Title |
|---|
| JP特开平6-246288A 1994.09.06 |
| LI YAXIN.Stimulation effect of trace metals on anaerobic digestion of high sodium content substrate.《Water Treatment》.1995,(第10期),摘要，table2. |
| Stimulation effect of trace metals on anaerobic digestion of high sodium content substrate;LI YAXIN;《Water Treatment》;19951231(第10期);摘要，table2 * |
| 李永灿.餐厨垃圾厌氧发酵过程酶学表征.《江南大学硕士论文》.2011,第21页第1段，第11页第2.1节. |
| 餐厨垃圾厌氧发酵过程酶学表征;李永灿;《江南大学硕士论文》;20110803;第21页第1段，第11页第2.1节 * |
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