Multi-element circulating straw biogas fermentation system

A biogas fermentation and circulation technology, applied in solid-phase fermentation bioreactor, bioreactor/fermenter combination, specific-purpose bioreactor/fermenter, etc., can solve the problem of low substrate degradation rate and biogas yield , fermentation system temperature instability, restricting the development of new energy technology and other issues, to achieve the effect of improving fermentation efficiency and biogas production rate, good practical value and promotion significance, good economic benefits and environmental protection benefits

Active Publication Date: 2017-03-08
HENAN AGRICULTURAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

However, most of the current biogas fermentation systems have problems such as low substrate degradation rate and biogas yield, unstable temperature of the fermentation system, and low level of industrialization, which seriously restrict the development of new energy technologies for straw biogas fermentation.

Method used

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  • Multi-element circulating straw biogas fermentation system

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Embodiment Construction

[0009] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0010] Such as figure 1 As shown, the present invention provides a multi-component circulation type straw biogas fermentation system, including a straw pretreatment pond 1, a stirring pond 2, a fermentation pond 3, a solid-liquid separation pond 4, a first biogas residue storage pond 5, a second biogas residue The storage pool 6, the replenishment pool 7, the gas storage tank 8, the three-way valve 9, the straw pretreatment pool 1 and the stirring pool 2 are connected through the first connecting pipe 10, and the stirring pool 2 and the fermentation pool 3 are connected through the second connecting pipe 11 The fermentation tank 3 is connected with the solid-liquid separation tank 4 through the third connecting pipe 12, the s...

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Abstract

The invention relates to a multi-element circulating straw biogas fermentation system. By connecting a straw pre-treatment tank, a stirring tank, a fermentation tank, a solid-liquid separation tank, a first biogas residue storage tank, a second biogas residue storage tank, water supplementing tank and a gas storage tank, the recycling and reusing of biogas and biogas residues are achieved, and temperature in a fermentation process is guaranteed, so as to improve a straw composting degree, shorten a fermentation cycle, increase a fermentation substrate degrading and using rate and guarantee temperature of the fermentation system; the fermentation system is efficient, energy-saving, strong in applicability and simple in structure; the fermentation system can bring about good economic and environmental protection benefits; and the fermentation system is excellent in practical value and popularization significance.

Description

technical field [0001] The invention relates to the technical field of biogas fermentation, in particular to a multiple-circulation straw biogas fermentation system. Background technique [0002] Energy shortage, environmental pollution and the resulting human health problems are the main problems faced by today's society. Therefore, the research and development of renewable clean energy has become extremely urgent. Straw biogas fermentation can not only realize the reuse of waste straw, but also obtain clean energy. It has an important role in saving firewood, electricity, labor, increasing fertilizer, increasing production, increasing efficiency and purifying the environment. my country is a large agricultural country with an annual output of about 600 million tons of straw waste. Therefore, it is an effective way to use straw in a reasonable and efficient way to use the resource-rich agricultural waste straw for fermentation to produce biogas. However, most of the curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/16C12M1/107C12M1/06C12M1/00
CPCC12M21/04C12M21/16C12M23/36C12M27/02C12M29/24C12M43/00C12M45/02Y02E50/30
Inventor 张全国赵庆阳张志萍胡建军贺超张甜路朝阳
Owner HENAN AGRICULTURAL UNIVERSITY
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