Comprehensive utilization method of straw

A technology of straw and compound bacterial agent, applied in the directions of microorganism-based methods, chemical instruments and methods, biochemical equipment and methods, etc., can solve the problems of environmental pollution and air quality, waste of resources, rot of straw, etc., and achieve guaranteed reaction conditions. , to promote the response, the effect of short cycle

Inactive Publication Date: 2014-07-16
SICHUAN MENGYUAN TECH INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a comprehensive utilization method for straws in view of the current problems that straws are mainly processed by rot or incineration, which seriously pollutes the environment and air quality, and rot or incineration of straws is also a waste of resources.
The present invention converts straws into various products through the application of chemical and biological engineering comprehensive means, which not only effectively solves the problems of environmental pollution and resource waste caused by straw decay or burning, but also prepares products with wide application, economical additional The advantage of high value has broad market application prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] After the straw is pulverized, it is prepared into straw fine powder for use. Take yeast, Aspergillus niger and Aspergillus flavus respectively, and the ratio of yeast, Aspergillus niger and Aspergillus flavus is 3:10:12 by weight, and mix them to obtain a composite inoculum.

[0045] Add 1000kg straw fine powder and 2.2kg compound bacterial agent to the reactor respectively, and then add some water to the reaction tank to make the mixture of straw fine powder and compound bacterial agent moist in the reactor, and anaerobic fermentation is carried out in an airtight manner for 3 days to obtain a primary fermentation. product. After completion, 3000kg of straw fine powder was added to the primary fermentation product, and the anaerobic fermentation was carried out in an airtight manner for 10 days to obtain a secondary fermentation product.

[0046] Add hydrochloric acid with a mass percentage of 15% to the secondary fermentation product, mix evenly, let stand for 30min...

Embodiment 2

[0053] After the straw is pulverized, it is prepared into straw fine powder for use. Taking yeast, Aspergillus niger and Aspergillus flavus respectively, the weight ratio of yeast, Aspergillus niger and Aspergillus flavus is 5:8:20, and mixing to obtain a composite inoculum.

[0054] Add 1000kg straw fine powder and 1.0kg compound bacterial agent to the reactor respectively, and then add some water to the reaction tank to moisten the mixture of straw fine powder and compound bacterial agent in the reactor, and ferment in a closed anaerobic manner for 5 days to obtain a primary fermentation. product. After the completion, 7000kg of fine straw powder was added to the primary fermentation product, and the anaerobic fermentation was carried out in an airtight manner for 10 days to obtain a secondary fermentation product.

[0055] Add hydrochloric acid with a mass percentage of 15% to the secondary fermentation product, mix evenly, let stand for 30minh, and sterilize. Then sodium...

Embodiment 3

[0061] After the straw is pulverized, it is prepared into straw fine powder for use. Take yeast, Aspergillus niger, Aspergillus flavus respectively, and the weight ratio of yeast, Aspergillus niger, and Aspergillus flavus is 3.5:15:15, and mix them to obtain a compound inoculum.

[0062] Add 1000kg straw fine powder and 0.8kg compound bacterial agent to the reactor respectively, and then add some water to the reaction tank to make the mixture of straw fine powder and compound bacterial agent moist in the reactor, and ferment in airtight anaerobicity for 5 days to obtain a primary fermentation. product. After completion, 2000kg of straw fine powder was added to the primary fermentation product, and the anaerobic fermentation was carried out in an airtight manner for 5 days to obtain a secondary fermentation product.

[0063] Add hydrochloric acid with a mass percentage of 15% to the secondary fermentation product, mix evenly, let stand for 30minh, and sterilize. Then sodium b...

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Abstract

The invention discloses a comprehensive utilization method of straw, aiming at solving the problems that the straws are treated by mainly adopting a rot or incineration manner currently so as to seriously pollute environment and air quality, and the rotting and incineration of the straw are resource-wasting. The method disclosed by the invention comprises the steps of preparation of fine straw powder, preparation of a complex microbial inoculant, reaction, posttreatment and the like. According to the invention, the straw can be transformed into multiple products through application of chemical and biological engineering comprehensive manners, and thus the problems that the straw is rotten or burnt so as to cause pollution of environment pollution and wasting of resources are effectively solved, and the prepared product has the advantages of wide application and high economic additional value and has important influence and outstanding progressive meaning. According to the method, ethyl alcohol, activated carbon, liquid fuel, feed, biomass charcoal, fertilizer and the like can be obtained, wastes are turned into wealth, the additional value of the straw is obviously improved, and the comprehensive utilization method has an important meaning on long-time sustainable utilization of the straw.

Description

technical field [0001] The invention relates to the field of agricultural industrial engineering, in particular to the comprehensive utilization of straw, in particular to a comprehensive utilization method of straw. Background technique [0002] In recent years, with the rapid progress of science and technology and the continuous improvement of people's material life, the people's requirements and hopes for material life, health and longevity, and improving physical quality are also increasing simultaneously, and air quality is directly related to people's health. People's requirements for air quality are getting higher and higher. [0003] As a developing country, my country is also a big agricultural country, and the output of agricultural waste generated by agricultural production is huge. Agricultural waste refers to straw, chaff, mountain thatch, dead leaves, sawdust and residues discharged from the food industry during the harvesting and processing of agricultural cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P39/00C12P7/10C01B31/12C05F11/00C05G3/00A23K1/16C12R1/85C12R1/67C12R1/685A23K40/00C01B32/348
CPCY02E50/10Y02P20/145Y02W30/40
Inventor 朱连德
Owner SICHUAN MENGYUAN TECH INVESTMENT CO LTD
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