Method for fermenting ammonia pre-treated wheat stalks to produce methane

A wheat straw and pretreatment technology, applied in fermentation, waste fuel and other directions, can solve problems such as cost reduction and low efficiency of wheat straw, and achieve the effects of increasing total gas production, shortening start-up time, and solving low efficiency

Active Publication Date: 2012-04-04
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for ammonia pretreatment of wheat straw fermentation to produce biogas, which solves the problem of low efficiency in wheat straw fermentation and reduces the cost

Method used

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Embodiment Construction

[0017] 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.

[0018] 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 a method for fermenting ammonia pre-treated wheat stalks to produce methane in the technical field of agricultural production. The methane is prepared by pre-treating wheat stalks and carrying out complete mixed anaerobic fermentation on the pre-treated wheat stalks. According to the invention, the methane is high efficiently and stably prepared by using the wheat stalks. The method for fermenting ammonia pre-treated wheat stalks to produce methane, disclosed by the invention, has the characteristics of high raw material utilization rate, stability in gas production, large gas producing quantity and uneasiness for scum crusting in the fermenting process; and recycling, energy and harmlessness of the wheat stalks are realized.

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 wheat straw by ammonia pretreatment. Background technique [0002] The northern part of my country is the main area for growing wheat. While planting wheat, a large amount of wheat straw is produced every year. Most of the wheat straw is discarded or directly burned, causing great environmental pollution and a waste of resources. How to solve the environmental problems caused by random discarding and burning of wheat straw in rural areas and improve the efficiency of resource utilization has become an important issue in the construction of new countryside. The use of wheat straw to produce biogas can not only solve the problem of lack of raw materials for biogas digesters in northern rural areas, but also reduce the environmental problems caused by wheat straw burning from the root, so that resources can be used effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02
CPCY02E50/343Y02E50/30
Inventor 刘荣厚吴晋锴孙辰崔婷婷吴小武
Owner SHANGHAI JIAO TONG UNIV
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