CN104399735B - A kind of preprocess method of stalk biomass - Google Patents
A kind of preprocess method of stalk biomass Download PDFInfo
- Publication number
- CN104399735B CN104399735B CN201410614372.3A CN201410614372A CN104399735B CN 104399735 B CN104399735 B CN 104399735B CN 201410614372 A CN201410614372 A CN 201410614372A CN 104399735 B CN104399735 B CN 104399735B
- Authority
- CN
- China
- Prior art keywords
- stalk
- stalk biomass
- biomass
- biogas slurry
- preprocess method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention provides a kind of preprocess method of stalk biomass, the step of degraded by material collection crushing, raw material stack retting, raw material soaking, mixing plus bacterium, sealing, stalk biomass is pre-processed.Using the method can effectively convert and degrading straw in the cellulose, hemicellulose and the lignin that are rich in, process is simple is easy to operation, and operating cost is cheap, and efficiency high does not pollute the environment, for processing stalk biomass provides facility.
Description
Technical field
The invention belongs to biomass utilization technologies field, specifically a kind of preprocess method of stalk biomass, more
Body is realized by biochemical method by stalk biomass thirdly big main components cellulose, hemicellulose and wooden
The conversion and degraded of element.
Background technology
Due to the worsening shortages of traditional energy, the utilization including the regenerative resource including biomass for being is risen,
It is expected to be played an important role in following energy resource structure, agricultural crop straw is biomass resource most abundant on the earth, according to not
Count completely, the whole world can produce nearly 2,000,000,000 tons of stalks every year, and China's agricultural crop straw annual production is about 6~700,000,000 tons, occupies generation
First of boundary, remove outside for papermaking, feed, also there are about 400,000,000 tons of stalks can be used as energy substance.
The major technical barrier that stalk biomass faces during utilization has two：One is that lignin is wrapped in fiber
The outside of element and hemicellulose, so as to the degraded to cellulose and hemicellulose constitutes one layer of barrier；Two is cellulose itself
Highly crystalline structure it is not degradable, compared with noncrystalline domain, the crystal region of cellulose accounts for the principal status of public economy again, up to 70%, because
This pretreatment is the critical path using lignocellulosic biomass fuel and biological products.
For the low problem of fermentation efficiency during straw methane fermentation, Planning Design Inst., Ministry of Agricultry independent research
Stalk integrated two-phase anaerobic digestion process technology, and by silage making process modification be suitable to straw anaerobic digestion it is pre-
Treatment technology, from 2009 so far the technique in the ground popularization and application such as Tianjin, Shandong, Shaanxi, Shanxi, Zhejiang, Hubei nearly 30
Remaining seat, operational effect is good.
But from terms of the applicable cases of the technique, the fermentation tank scale of straw methane engineering is all little, volume it is many 500~
1500m3Between, reason is to need to configure silage silo, and to ensure the stability of raw material, silage silo volume requirement can accommodate one
Stalk consumption in season is harvested, floor space is big.With fermentation tank scale as 1000m3Biogas engineering as a example by, can about dissolve green grass or young crops daily
Storage stalk 10t (about 15m3), being calculated within 1 year by operation, supporting ensiling pool volume needs 5400m3, take up an area about 1500m2.Therefore, pass
Ensiling way seriously constrains the large-scale development of such biogas engineering in the field of system.
Chinese patent 200910194728.1 discloses a kind of classified utilization method of stalk biomass, and the method is utilized
Gas explosion technology is pre-processed to stalk biomass, and processing cost is high, is unfavorable for expanding application.Other Chinese patent
CN103740767A discloses a kind of preprocess method for improving stalk biomass anaerobic digestion efficiency, and the preprocess method is adopted
Processed with chemical agent, caused environmental pollution, medicament is wasted, and process time is long.
The content of the invention
It is an object of the invention to the deficiency for just existing to prior art, there is provided a kind of pretreatment side of stalk biomass
Method, using the method can effectively convert and degrading straw in the cellulose, hemicellulose and the lignin that are rich in, be processing stalk
Biolobic material provides facility.
To achieve the above object, the concrete technical scheme that the present invention is provided is as follows：
A kind of preprocess method of stalk biomass, comprises the following steps：
1) after the whole stalk of stalk biomass is harvested, treatment is dried, moisture content is reached 15~25%；
2) by step 1) stalk biomass that obtains crushed, the broken Xi Du≤3mm of Fen；
3) by step 2) the stalk biomass powder that obtains is put into fermentation vat, and it is that water content reaches to add biogas slurry
40~50%, aerobic stack retting is carried out at 55~65 DEG C 4 hours；
4) biogas slurry to stalk biomass powder is added to be completely immersed in wherein, inoculation EM bacterium are soaked 3~5 days；
5) biogas slurry is extracted out, it is then closed after the mixing of inoculation probiotics, make the stalk biomass powder after immersion closed
Under conditions of fermentative degradation take out standby after 8~10 days.
The stalk biomass selects one or more in following material：Straw, wheat straw, beanstalk, sorghum stalks, corn
Core, cornstalk and Cotton Stalk.
The drying process, using natural air drying, drying process ventilation drying.
The EM bacterium inoculum concentration is 1 ‰~the 1% of stalk biomass weight.
The probiotics inoculum concentration is 0.5~the 1 ‰ of stalk biomass weight, can be entirely lactic acid bacteria, also may be used
So that to be more than 50% lactic acid bacteria therein a kind of with clostridium butyricum, Bifidobacterium, lactobacillus acidophilus, actinomyces, saccharomycete or
Various mixing.
The invention has the advantages that：
1. compared with prior art, process is simple is easy to operation to the present invention.
2. operating cost of the present invention is cheap, and efficiency high does not pollute the environment.
3. the method that the present invention uses " aerobic stack retting+biogas slurry immersion+microbiological treatment ", to three kinds of stalk biomass
Component (lignin, cellulose and hemicellulose) has carried out abundant degraded and conversion, realizes stalk biomass using maximization.
Brief description of the drawings
Fig. 1 is a kind of operational flowchart of the preprocess method of stalk biomass
Specific embodiment
Embodiment 1
After the whole stalk of maize straw is harvested, treatment is dried using natural air drying, drying process ventilation drying makes moisture content
15~25% are reached, dried stalk biomass is crushed, the broken Xi Du≤3mm of Fen；The stalk that will be obtained is biological
Matter powder is put into fermentation vat, and it is that water content reaches 40~50% to add biogas slurry, and aerobic stack retting 4 is carried out at 55~65 DEG C
Hour, add biogas slurry to stalk biomass powder to be completely immersed in wherein, it is inoculated with the 1 ‰ of stalk biomass weight EM bacterium leaching
Bubble 5 days, extracts biogas slurry out, and then closed after inoculating lactic acid bacterium mixing, lactobacillus inoculum amount is stalk biomass weight
0.5 ‰, the fermentative degradation under conditions of closed of the stalk biomass powder after immersion is taken out standby after 10 days.
Embodiment 2
After the whole stalk of maize straw is harvested, treatment is dried using natural air drying, drying process ventilation drying makes moisture content
15~25% are reached, dried stalk biomass is crushed, the broken Xi Du≤3mm of Fen；The stalk that will be obtained is biological
Matter powder is put into fermentation vat, and it is that water content reaches 40~50% to add biogas slurry, and aerobic stack retting 4 is carried out at 55~65 DEG C
Hour, add biogas slurry to stalk biomass powder to be completely immersed in wherein, it is inoculated with the 1% of stalk biomass weight EM bacterium leaching
Bubble 3 days, extracts biogas slurry out, and then closed after inoculating lactic acid bacterium mixing, lactobacillus inoculum amount is the 1 ‰ of stalk biomass weight,
The fermentative degradation under conditions of closed of the stalk biomass powder after immersion is set to take out standby after 8 days.
Claims (2)
1. a kind of preprocess method of stalk biomass, it is characterised in that comprise the following steps：1) straw, wheat straw, beanstalk,
After the whole stalk of one or several materials of sorghum stalks, corncob, cornstalk and Cotton Stalk is harvested, treatment is dried, makes moisture content
Reach 15~25%；2) by step 1) stalk biomass that obtains crushed, the broken Xi Du≤3mm of Fen；3) by step 2)
To stalk biomass powder be put into fermentation vat, add biogas slurry water content is reached 40~50%, enter at 55~65 DEG C
Act charitably oxygen stack retting 4 hours；4) add biogas slurry to stalk biomass powder to be completely immersed in wherein, be inoculated with stalk biomass weight
1 ‰~1% EM bacterium are soaked 3~5 days；5) extract biogas slurry out, be then inoculated with the lactic acid of stalk biomass weight 0.5 ‰~1 ‰
Bacterium or more than 50% lactic acid bacteria and clostridium butyricum, Bifidobacterium, lactobacillus acidophilus, actinomyces, saccharomycete it is therein a kind of or
It is closed after various mixing, the fermentative degradation under conditions of closed of the stalk biomass powder after immersion is taken out after 8~10 days
It is standby.
2. the preprocess method of a kind of stalk biomass according to claim 1, it is characterised in that described dried
Journey, using natural air drying, drying process ventilation drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614372.3A CN104399735B (en) | 2014-11-04 | 2014-11-04 | A kind of preprocess method of stalk biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614372.3A CN104399735B (en) | 2014-11-04 | 2014-11-04 | A kind of preprocess method of stalk biomass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104399735A CN104399735A (en) | 2015-03-11 |
| CN104399735B true CN104399735B (en) | 2017-07-07 |
Family
ID=52637438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410614372.3A Active CN104399735B (en) | 2014-11-04 | 2014-11-04 | A kind of preprocess method of stalk biomass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104399735B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826855A (en) * | 2015-05-08 | 2015-08-12 | 江苏省农业科学院 | Pretreatment method of straws for anaerobic fermentation |
| CN104844293B (en) * | 2015-05-25 | 2017-09-19 | 徐震霖 | A kind of preparation method and application of organic fertilizer |
| CN104909852B (en) * | 2015-05-25 | 2018-01-02 | 北京中天玺龙农业技术发展有限公司 | Organic fertilizer and application prepared by a kind of wheat stalk |
| CN109734496A (en) * | 2017-12-15 | 2019-05-10 | 自贡佳禾新能源科技有限公司 | A method of biological organic fertilizer is prepared using stalk |
| CN108795454A (en) * | 2018-06-12 | 2018-11-13 | 天津大学 | Being pre-processed using biogas slurry stack retting improves the method for stalk pyrolytic gasification combustion gas quality and gasification efficiency |
| CN109531874B (en) * | 2018-08-25 | 2020-12-08 | 李双全 | Method for treating and separating impurities in waste farmland mulching films by biological method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2060635A1 (en) * | 2007-11-16 | 2009-05-20 | Syngenta Participations AG | An improved process for providing ethanol from plant material |
| CN101407827B (en) * | 2008-11-14 | 2010-11-03 | 庄明儒 | Method for improving gas production rate of marsh gas fermentation raw material |
| CN101643796A (en) * | 2009-08-28 | 2010-02-10 | 上海中科清洁能源技术发展中心 | Method for utilizing straw biomass by grades |
| CN102887741A (en) * | 2012-10-31 | 2013-01-23 | 青岛嘉禾丰肥业有限公司 | Organic fertilizer prepared by fermenting straws |
| CN103664257B (en) * | 2013-11-15 | 2015-06-03 | 青岛天人环境股份有限公司 | Preparation method of biogas slurry cured organic fertilizer |
| CN103740767B (en) * | 2014-02-11 | 2016-05-04 | 农业部规划设计研究院 | A kind of preprocess method that improves stalk biomass anaerobic digestion efficiency |
-
2014
- 2014-11-04 CN CN201410614372.3A patent/CN104399735B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104399735A (en) | 2015-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104399735B (en) | A kind of preprocess method of stalk biomass | |
| Zhong et al. | Effect of biological pretreatments in enhancing corn straw biogas production | |
| Chen et al. | Effects of acid/alkali pretreatments on lignocellulosic biomass mono-digestion and its co-digestion with waste activated sludge | |
| Wang et al. | Rumen fluid fermentation for enhancement of hydrolysis and acidification of grass clipping | |
| Liang et al. | Effect of substrate load on anaerobic fermentation of rice straw with rumen liquid as inoculum: Hydrolysis and acidogenesis efficiency, enzymatic activities and rumen bacterial community structure | |
| Chanakya et al. | Anaerobic digestion for bioenergy from agro-residues and other solid wastes—An overview of science, technology and sustainability | |
| CN104531766B (en) | A kind of method and device of stalk micro-aerobe fermentation production hydrogen | |
| Ma et al. | Enhanced biomethane production from corn straw by a novel anaerobic digestion strategy with mechanochemical pretreatment | |
| CN103740767B (en) | A kind of preprocess method that improves stalk biomass anaerobic digestion efficiency | |
| CN104152495A (en) | Method for anaerobically producing biogas with jerusalem artichoke straw as raw material | |
| CN105506030A (en) | Lignocellulose anaerobic methane-producing pretreatment and fermentation technology | |
| CN109805176A (en) | A kind of preparation method of corn stover Huang storage feed | |
| Joseph et al. | Two-stage thermophilic anaerobic co-digestion of corn stover and cattle manure to enhance biomethane production | |
| Intasit et al. | Fungal pretreatments of Napier grass and sugarcane leaves for high recovery of lignocellulosic enzymes and methane production | |
| CN104878045A (en) | Method for producing methane through two-phase mixing anaerobic fermentation of steam-exploded straw and cow dung | |
| CN108570482A (en) | A kind of maize straw comprehensive resource utilizes method | |
| CN107435053A (en) | A kind of white-rot fungi pretreatment agricultural crop straw quickly produces the fermentation process of biogas | |
| CN106834408A (en) | A kind of pig manure and the method for rice straw collaboration efficient anaerobic digestion | |
| CN103352016A (en) | Method for preparing biological fertilizer by utilizing Alteromonas colwelliana A321 to ferment enteromorpha | |
| CN108148879A (en) | A kind of preprocess method of maize straw | |
| CN103160543B (en) | Method for improving biogas yield of lignocelluloses-containing raw material | |
| Dubrovskis et al. | Enzymatic and catalystic enchancement of methane production from corn silage and grain residues | |
| CN103060389B (en) | Method for preparing methane by utilizing residual mushroom bran and mushroom head in pleurotus eryngii production | |
| DK2252695T3 (en) | Method for fermentation of biomass | |
| CN106755127A (en) | A kind of method that alcohol manioc waste produces biogas with stalk coupled fermentation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200717 Address after: 743000 circular economy industrial park, Anding District, Gansu, Dingxi Patentee after: GANSU DEFU BIOTECHNOLOGY Co.,Ltd. Address before: 743000 circular economy Industrial Park 8, Anding District, Dingxi City, Gansu Province Patentee before: GANSU XINDE GAS Co.,Ltd. |
|
| TR01 | Transfer of patent right |