CN104031942A - Low-temperature straw biogas fermentation promoter and preparation method thereof - Google Patents
Low-temperature straw biogas fermentation promoter and preparation method thereof Download PDFInfo
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- CN104031942A CN104031942A CN201410245557.1A CN201410245557A CN104031942A CN 104031942 A CN104031942 A CN 104031942A CN 201410245557 A CN201410245557 A CN 201410245557A CN 104031942 A CN104031942 A CN 104031942A
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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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Abstract
The invention discloses a low-temperature straw biogas fermentation promoter and a preparation method thereof, and relates to the technical field of agricultural production. The promoter is prepared from the following raw materials in parts by weight: 10 parts of FeCl2.4H2O, 2-4 parts of NiCl2.6H2O, 1-2 parts of CoCl2.6H2O, 44-67 parts of wheat bran and 20-40 parts of cellulose in dissolving and even mixing manners. The low-temperature straw biogas fermentation promoter has the advantages of being simple in ingredient, low in cost, easy to prepare, flexible to use, easy to regulate and control and the like, low-temperature inhibition is relieved by adding the promoter, and efficient gas production of the straw biogas is achieved.
Description
Technical field
The invention belongs to field of agricultural production technologies, be specifically related to a kind of low temperature straw methane fermentation promotor and preparation method thereof.
Background technology
Production in Straw Fermentation biogas technology is mainly to using stalk to replace fowl and animal excrement to carry out as main fermentation raw material the technology that biogas is produced in anaerobic digestion.The anaerobic digestion reaction of stalk is a biochemical conversion process, generally can divide three phases: the first stage is hydrolysis stage, by anaerobism and amphimicrobian microorganism, Mierocrystalline cellulose in stalk etc. is hydrolyzed into small molecule monomer, and is further converted to propionic acid, acetic acid, butyric acid, ethanol etc.; Subordinate phase is to produce acid phase, is utilized the organic acid of first stage generation by hydrogen-producing acetogenic bacteria group, and oxygenolysis becomes acetic acid and molecular hydrogen; The methanogen floras of phase III by strictly anaerobic changes into methane by acetic acid etc.Generally believing at present that low temperature stalk marsh gas gas deliverability is low mainly contains two reasons.The one, with some other biogas fermentation material, such as ight soil and sanitary sewage etc. compared, because the main component of stalk is Mierocrystalline cellulose, hemicellulose and xylogen etc., more difficultly by microorganism, is decomposed and utilize, so straw methane fermentation exist start slow, factor of created gase is low; Another one reason is under cold condition, the activity decreased of methane fermentating microorganism, raw material can not get decomposing fully and utilizing in pond, makes biogas turnover ratio low, it obviously reduces at low temperature season biogas output, and the marsh gas raw materials gas production rate of same quantity is usually not as good as 1/3 of summer.In order to improve decomposition utilization ratio and the gas production rate of methane-generating pit fermentation raw material, can to macromolecular substance such as stalk celluloses, degrade by additional enzyme preparation, simultaneously additional microorganism active activator improves the activity of microorganism under cold condition in methane-generating pit, and these two measures are the important channels that solve low temperature stalk marsh gas gas deliverability.
Summary of the invention
The object of the invention is to: the shortcoming that overcomes existing stalk marsh gas technology gas deliverability deficiency under cold condition, a kind of easy and simple to handle, comprehensive cost is low, low temperature biogas toggle speed is fast, suitability is strong low temperature straw methane fermentation promotor is provided, it can accelerate stalk hydrolysed ferment, strengthen low temperature biogas bacterial activity, improve methane gas producing efficiency.
Two of object of the present invention is: the preparation method that a kind of above-mentioned promotor is provided.
technical solution of the present invention is: shouldlow temperature straw methane fermentation promotor is comprised of the raw material of following weight part: FeCl
24H
210 parts of O, NiCl
26H
2o 2-4 part, CoCl
26H
2o 1-2 part, cellulase 20-40 part, wheat bran 44-67 part.
Wherein, the work of promotor cellulase is higher than 500U/g.
Wherein, the preparation method of above-mentioned low temperature straw methane fermentation promotor comprises the following steps: take by weight FeCl
24H
210 parts of O, NiCl
26H
2o 2-4 part, CoCl
26H
2o 1-2 part, is dissolved in water and makes saturated solution; Add again the wheat bran of parts by weight 44-67 part fully to mix; The cellulase that finally takes parts by weight 20-40 part mixes completely, obtains low temperature straw methane fermentation promotor.
Advantage of the present invention is: the cellulase that 1, contains energy hydrolyzing straw in low temperature straw methane fermentation promotor, accelerate the degraded of stalk, promote hydrolysis and the acidifying of stalk, contain simultaneously methane is produced to useful various metallic elements and the somatomedin of bacterium, the acting in conjunction of enzyme, metallic element and somatomedin, improved the nutrient environment of low temperature straw methane fermentation flora, promote the quick harmonic growth of flora, thereby improve aerogenesis effect, adding promotor than the system gas production rate not adding has increased by 35～50%; 2, low temperature straw methane fermentation promotor composition is simple, with low cost, and preparation easily, is used flexibly, is easy to regulation and control, by adding promotor, can remove the object that low temperature suppresses and realize stalk marsh gas efficient aerogenesis, has good market application foreground.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, these embodiment can not be interpreted as it is the restriction to technical scheme.
Embodiment 1: take by weight FeCl
24H
210 parts of O, NiCl
26H
22 parts of O, CoCl
26H
21 part of O, is dissolved in water and makes saturated solution; Add again the wheat bran of 67 parts of parts by weight fully to mix; The cellulase that finally takes 20 parts of parts by weight mixes completely, obtains low temperature straw methane fermentation promotor.
Choosing agricultural crop straw is that fermentation raw material carries out in 1L fermentor tank, fermented feed liquid total solid is 10%, the active sludge of domestication by low temperature access solid content 10%(W/W), in fermentor tank, by 0.6 ‰ of fermentating liquid volume, add above-mentioned low temperature straw methane fermentation promotor, in 15 ℃ of thermostat containers, cultivate, after 30 days, aerogenesis total amount reaches 7230mL.
Embodiment 2: take by weight FeCl
24H
210 parts of O, NiCl
26H
23 parts of O, CoCl
26H
22 parts of O, are dissolved in water and make saturated solution; Add again the wheat bran of 55 parts of parts by weight fully to mix; The cellulase that finally takes 30 parts of parts by weight mixes completely, obtains low temperature straw methane fermentation promotor.
Choosing agricultural crop straw is that fermentation raw material carries out in 1L fermentor tank, fermented feed liquid total solid is 10%, the active sludge of domestication by low temperature access solid content 10%(W/W), in fermentor tank, by 0.4 ‰ of fermentating liquid volume, add above-mentioned low temperature straw methane fermentation promotor, in 15 ℃ of thermostat containers, cultivate, after 30 days, aerogenesis total amount reaches 6980mL.
Embodiment 3: take by weight FeCl
24H
210 parts of O, NiCl
26H
24 parts of O, CoCl
26H
22 parts of O, are dissolved in water and make saturated solution; Add again the wheat bran of 44 parts of parts by weight fully to mix; The cellulase that finally takes 40 parts of parts by weight mixes completely, obtains low temperature straw methane fermentation promotor.
Choosing agricultural crop straw is that fermentation raw material carries out in 1L fermentor tank, fermented feed liquid total solid is 10%, the active sludge of domestication by low temperature access solid content 10%(W/W), in fermentor tank, by 0.3 ‰ of fermentating liquid volume, add above-mentioned low temperature straw methane fermentation promotor, in 15 ℃ of thermostat containers, cultivate, after 30 days, aerogenesis total amount reaches 7550mL.
Reference examples: choosing agricultural crop straw is that fermentation raw material carries out in 1L fermentor tank, fermented feed liquid total solid is 10%, the active sludge of domestication by low temperature access solid content 10%(W/W) is cultivated in 15 ℃ of thermostat containers, and after 30 days, aerogenesis total amount reaches 5130mL.
Claims (3)
1. low temperature straw methane fermentation promotor, is characterized in that this promotor is comprised of the raw material of following weight part: FeCl
24H
210 parts of O, NiCl
26H
2o 2-4 part, CoCl
26H
2o 1-2 part, cellulase 20-40 part, wheat bran 44-67 part.
2.
according to claim 1low temperature straw methane fermentation promotor, is characterized in that: the work of promotor cellulase is higher than 500U/g.
3. the preparation method of low temperature straw methane fermentation promotor, is characterized in that this preparation method comprises the following steps: take by weight FeCl
24H
210 parts of O, NiCl
26H
2o 2-4 part, CoCl
26H
2o 1-2 part, is dissolved in water and makes saturated solution; Add again the wheat bran of parts by weight 44-67 part fully to mix; The cellulase that finally takes parts by weight 20-40 part mixes completely, obtains low temperature straw methane fermentation promotor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410245557.1A CN104031942A (en) | 2014-06-05 | 2014-06-05 | Low-temperature straw biogas fermentation promoter and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410245557.1A CN104031942A (en) | 2014-06-05 | 2014-06-05 | Low-temperature straw biogas fermentation promoter and preparation method thereof |
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| CN104031942A true CN104031942A (en) | 2014-09-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058400A (en) * | 2017-06-30 | 2017-08-18 | 合肥慧明瀚生态农业科技有限公司 | A kind of biogas fermentation efficient additive and preparation method thereof |
| CN107674908A (en) * | 2017-11-30 | 2018-02-09 | 江苏中科重工股份有限公司 | A kind of accelerator for biogas fermentation |
| CN109468343A (en) * | 2018-11-29 | 2019-03-15 | 中国科学院成都生物研究所 | A kind of stalk anaerobic fermentation produces methane accelerator and its preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351170A (en) * | 2001-11-14 | 2002-05-29 | 云南师范大学 | Bio-active additive for fermentation of marsh gas |
| CN102586332A (en) * | 2012-01-13 | 2012-07-18 | 庄桂玉 | Quick-acting fermentation enhancer and quick-acting methane production method |
-
2014
- 2014-06-05 CN CN201410245557.1A patent/CN104031942A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351170A (en) * | 2001-11-14 | 2002-05-29 | 云南师范大学 | Bio-active additive for fermentation of marsh gas |
| CN102586332A (en) * | 2012-01-13 | 2012-07-18 | 庄桂玉 | Quick-acting fermentation enhancer and quick-acting methane production method |
Non-Patent Citations (2)
| Title |
|---|
| HERBERT POBEHEIM等: "Impact of nickel and cobalt on biogas production and process stability during semi-continuous anaerobic fermentation of a model substrate for maize silage", 《WATER RESEARCH》 * |
| 时昌波等: "三价铁离子促进玉米秸秆厌氧发酵", 《农业工程学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058400A (en) * | 2017-06-30 | 2017-08-18 | 合肥慧明瀚生态农业科技有限公司 | A kind of biogas fermentation efficient additive and preparation method thereof |
| CN107674908A (en) * | 2017-11-30 | 2018-02-09 | 江苏中科重工股份有限公司 | A kind of accelerator for biogas fermentation |
| CN109468343A (en) * | 2018-11-29 | 2019-03-15 | 中国科学院成都生物研究所 | A kind of stalk anaerobic fermentation produces methane accelerator and its preparation method and application |
| CN109468343B (en) * | 2018-11-29 | 2021-11-02 | 中国科学院成都生物研究所 | Promoter for producing biogas through straw anaerobic fermentation and preparation method and application thereof |
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Application publication date: 20140910 |