Production method of biogas

A production method and biogas technology, applied in biological sludge treatment, waste fuel, fermentation, etc., can solve the problems of low gas production and short duration of gas production, and achieve the effect of high gas production

Inactive Publication Date: 2015-03-04
柳州东侯生物能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a biogas production method, which can effectively extend the duration of biogas production and increase its gas production, thereby solving the problems of short gas production duration and low gas production in the existing domestic biogas production technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The following raw materials are used in this embodiment: 3 kg of pig manure, 4.5 kg of cow dung, 1.5 kg of crop straw, 1.5 kg of fungus residue and 2.0 kg of biological bacteria.

[0020] Its production method comprises the following steps:

[0021] A. Stir and mix the above-mentioned pig manure and cow manure evenly, and acidify and precipitate at a constant temperature of 35°C to 38°C for 10 days to obtain a mixed acidified feed solution;

[0022] B. Add water to the mixed acidified feed solution prepared in step A to adjust its concentration to 15%, then mix it evenly with crop straw, fungus residue and biological bacteria, and ferment at a constant temperature of 28°C to 30°C;

[0023] C. Collect the gas produced in the constant temperature fermentation process of step B.

[0024] Compared with the existing biogas production, the gas production time of this embodiment is extended by 40 days, and the gas production rate is increased by 70%.

Embodiment 2

[0026] This embodiment uses the following raw materials: 3.3kg of pig manure, 4.2kg of cow dung, 2.0kg of crop straw, 2.5kg of fungus residue and 1.0kg of biological bacteria.

[0027] Its production method comprises the following steps:

[0028] A. Stir and mix the above-mentioned pig manure and cow manure evenly, and acidify and precipitate at a constant temperature of 35°C to 38°C for 10 days to obtain a mixed acidified feed solution;

[0029] B. Add water to the mixed acidified feed solution prepared in step A to adjust its concentration to 15%, then mix it evenly with crop straw, fungus residue and biological bacteria, and ferment at a constant temperature of 28°C to 30°C;

[0030] C. Collect the gas produced in the constant temperature fermentation process of step B.

[0031] Compared with the existing biogas production, the gas production time of this embodiment is extended by 39 days, and the gas production rate is increased by 69%.

Embodiment 3

[0033] The following raw materials are used in this embodiment: 3.5 kg of pig manure, 4.0 kg of cow dung, 1.8 kg of crop straw, 2.0 kg of fungus residue and 1.5 kg of biological bacteria.

[0034] Its production method comprises the following steps:

[0035] A. Stir and mix the above-mentioned pig manure and cow manure evenly, and acidify and precipitate at a constant temperature of 35°C to 38°C for 10 days to obtain a mixed acidified feed solution;

[0036] B. Add water to the mixed acidified feed solution prepared in step A to adjust its concentration to 15%, then mix it evenly with crop straw, fungus residue and biological bacteria, and ferment at a constant temperature of 28°C to 30°C;

[0037] C. Collect the gas produced in the constant temperature fermentation process of step B.

[0038] Compared with the existing biogas production, the gas production time of this embodiment is extended by 41 days, and the gas production rate is increased by 72%.

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Abstract

The invention discloses a production method of biogas, belonging to the technical field of biomass energy production. The biogas is produced by using the following raw materials in parts by weight: 30-35 parts of pig manure, 40-45 parts of cow dung, 15-20 parts of crop straws, 15-25 parts of mushroom dregs and 10-20 parts of biological bacteria. The production method comprises the following steps of stirring and uniformly mixing the pig manure and the cow dung, and acidizing and settling at the constant temperature of 35-38 DEG C for 10 days to obtain a mixed acidized solution; adding water into the mixed acidized solution to regulate the concentration of the mixed acidized solution to 15%, then, uniformly mixing the mixed acidized solution, the crop straws, the mushroom dregs and the biological bacteria, and fermenting at the constant temperature of 28-30 DEG C; and collecting gases generated in the constant-temperature fermentation process. Compared with the existing biogas production technology, the production method disclosed by the invention has the advantages that the biogas production lasting time is longer, and the biogas yield is higher.

Description

technical field [0001] The invention relates to the technical field of biomass energy production, in particular to a biogas production method. Background technique [0002] Biogas is a kind of combustible gas produced by various organic substances through the fermentation of microorganisms in the isolation of air (reducing conditions) and at a suitable temperature and pH value. Biogas belongs to secondary energy and is a renewable energy. [0003] At present, the existing domestic biogas production technology still stays at the technical stage of short gas production duration and low gas production. Contents of the invention [0004] The invention provides a biogas production method, which can effectively extend the duration of biogas production and increase its gas production, thereby solving the problems of short gas production duration and low gas production in the existing domestic biogas production technology . [0005] In order to solve the problems of the technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C02F11/04
CPCY02E50/30
Inventor 韦泉
Owner 柳州东侯生物能源科技有限公司
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