Ammonia-biological joint treatment method for fermenting wheat straws to produce biogas

A combined treatment technology of wheat straw, applied in fermentation, waste fuel, etc., can solve the problems of shortening the fermentation cycle and low efficiency of wheat straw, and achieve the effects of solving low fermentation efficiency, increasing total gas production, and mild conditions

Active Publication Date: 2014-04-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for ammonia-biological joint treatment of wheat straw fermentation to produce biogas, which solves the problem of low efficiency in wheat straw fermentation and shortens the fermentation cycle

Method used

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are provided, but the protection scope of the present invention is not limited to the following embodiments.

[0021] The fermentation device adopted in this example is composed of fermentation bottle, gas collecting bottle, collecting bottle, constant temperature water bath oscillator and other parts. Two holes are drilled on the silica gel plug, one is respectively connected with two glass tubes of appropriate size, one is connected with the conduit of the gas collecting bottle, and the other is used as a sampling tube. The gas-collecting bottle is a 1000mL triangular flask, filled with saturated saline, and sealed with a suitable-sized silicone stopper. Two holes are drilled on the silicone stopper, and one is respectively connected to ...

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Abstract

The invention discloses an ammonia-biological joint treatment method for fermenting wheat straws to produce biogas, in the technical field of agricultural production. After being sequentially pretreated by ammonia and biologically, the wheat straws undergo complete mixing type anaerobic fermentation to produce the biogas. The method utilizes the wheat straws to efficiently and stably produce the biogas. The method has the characteristics of short fermentation period, stable biogas production, high biogas output and high methane content in the produced biogas, solves the problem that wheat straw waste is difficult to be anaerobically digested to produce the biogas, and provides a feasible reference for the utilization of the wheat straws as a resource and energy.

Description

technical field [0001] The invention relates to a method in the technical field of agricultural production, in particular to a method for preparing biogas from ammonia-biological joint treatment of wheat straw. Background technique [0002] Wheat is one of the main crops in northern my country, and wheat straw resources account for 18.31% of the total straw resources. The utilization rate of straw in my country only accounts for about 35% of that in developed countries. Because it has not been well utilized, large-scale straw burning has often occurred in recent years. The low calorific value of straw burning not only causes waste of resources, but also pollutes the environment and destroys trees and cultivated land. Therefore, it has become an urgent problem to be solved in our country to find a way to recycle straws. [0003] Pretreatment of straw, breaking the crystal structure of cellulose, hemicellulose and lignin in straw, so that microorganisms can effectively and q...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P5/02
CPCY02E50/343Y02E50/30
Inventor 刘荣厚吴晋锴
Owner SHANGHAI JIAO TONG UNIV
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