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Straw treatment process for improving fermentation efficiency of corn straw

A corn stalk and fermentation efficiency technology, applied in the biological field, can solve problems such as the inability to maintain the continuity of the heat transfer channel, the unfavorable heat transfer of the material layer, and the fault of the heat transfer channel, so as to achieve low-cost resource utilization and facilitate the growth of microorganisms , Improve the effect of compactness

Inactive Publication Date: 2020-04-17
安徽正基生态农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simple puffing treatment of corn stalks can achieve rapid start-up of fermentation and increase fermentation efficiency to a certain extent, but as the fermentation progresses, the growth of microorganisms on the surface of the material changes the porosity of the material layer, making the material layer The distance between them increases, which leads to faults in the heat transfer channel formed in the material layer, making the heat transfer channel unable to maintain continuity, which is not conducive to the heat transfer in the material layer, resulting in excessive internal temperature of the material, which is not conducive to the growth of microorganisms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A stalk treatment process for improving the fermentation efficiency of corn stalks, the specific process method is as follows:

[0016] 1) At room temperature, according to the volume ratio of 1:1, add the chitosan solution with a concentration of 3% to the aqueous solution of nanocellulose with a concentration of 3%, and then slowly add 0.02% N-N methylene by weight of the aqueous solution of nanocellulose base bisacrylamide, stirred for 2 hours at a speed of 80r / min to form a uniform dispersion system, then put the solution in a mold, let it stand at room temperature until the gel formed stably, and then placed it in 50% tert-butyl Perform solvent replacement in the alcohol solution for 30 hours, and replace the solution every 8 hours during the replacement process. After the replacement, freeze-dry at -55°C for 25 hours to obtain nano-nanometer cellulose / chitosan composite airgel;

[0017] 2) Immerse the nano-nanocellulose / chitosan composite airgel in a mixed solutio...

Embodiment 2

[0022] A stalk treatment process for improving the fermentation efficiency of corn stalks, the specific process method is as follows:

[0023] 1) At room temperature, according to the volume ratio of 1:1, add the chitosan solution with a concentration of 4% to the aqueous solution of nanocellulose with a concentration of 5%, and then slowly add N-N methylene of 0.03% by weight of the aqueous solution of nanocellulose base bisacrylamide, stirred at a speed of 100r / min for 1.5h to form a uniform dispersion system, then put the solution in a mold, let it stand at room temperature until the gel formed stably, and then placed it in 60% tertiary Carry out solvent replacement in the butanol solution for 25 hours, and replace the solution every 7 hours during the replacement process. After the replacement, freeze-dry at -58°C for 23 hours to obtain nano-nanometer cellulose / chitosan composite airgel;

[0024]2) Immerse the nano-nanocellulose / chitosan composite airgel in a mixed solutio...

Embodiment 3

[0028] A stalk treatment process for improving the fermentation efficiency of corn stalks, the specific process method is as follows:

[0029] 1) At room temperature, according to the volume ratio of 1:1, add the chitosan solution with a concentration of 5% to the aqueous solution of nanocellulose with a concentration of 7%, and then slowly add 0.04% N-N methylene by weight of the aqueous solution of nanocellulose base bisacrylamide, stirred at a speed of 120r / min for 1 hour to form a uniform dispersion system, then put the solution in a mold, let it stand at room temperature until the gel formed stably, and then placed it in 70% tert-butyl Perform solvent replacement in the alcohol solution for 20 hours, and replace the solution every 6 hours during the replacement process. After the replacement, freeze-dry at -60°C for 20 hours to obtain nano-nanometer cellulose / chitosan composite airgel;

[0030] 2) Immerse the nano-nanocellulose / chitosan composite airgel in a mixed solutio...

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Abstract

The invention discloses a straw treatment process for improving the fermentation efficiency of corn straw and relates to the field of biotechnology. The straw treatment process comprises the followingspecific processes that 1), a chitosan solution and a nanocellulose aqueous solution are mixed, then N-N methylene bisacrylamide is added, gel is placed in a mold, and nano-nano cellulose / chitosan composite aerogel is obtained; 2), the silica functionalized nano nano-cellulose / chitosan composite aerogel is prepared; 3), the corn straw is immersed in zinc carbonate dispersion liquid and then takenout and dried; and 4), the silica functionalized nano-cellulose / chitosan composite aerogel and the heat-treated corn straw are uniformly mixed and compacted through a compactor, and then the corn straw to be fermented can be obtained. According to the straw treatment process for improving the fermentation efficiency of the corn straw, the temperature of a material layer in the fermentation process of the corn straw to be fermented can be balanced, so that microbial growth is facilitated, the fermentation efficiency is improved, and the yield of the organic substance is increased, so that theutilization rate of the corn straw is increased, and the efficient and low-cost resource utilization of the corn straw is realized.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a stalk treatment process for improving the fermentation efficiency of corn stalks. Background technique [0002] my country is a large agricultural country, and the amount of corn stalks produced every year is huge, and due to the transfer of labor force and the transformation of farming methods, most of the corn stalks are burned or discarded on the spot. However, the environmental pollution and waste of resources caused by incineration or disposal of corn stalks have become the focus of attention of relevant management departments and researchers. Corn straw contains a large amount of nanocellulose and semi-nanometer cellulose, which is a very good biomass material, which can be widely used in feed, organic fertilizer, biogas and other aspects through bioconversion. However, the natural structure of corn stalks is very complex, and the biotransformation efficiency is ...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C05F11/00
CPCB09B3/00B09B5/00C05F11/00B09B3/40
Inventor 应坤
Owner 安徽正基生态农业有限公司
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