Method for producing methane and preparing fertilizer simultaneously

A technology for preparing fertilizers and producing methane, which is applied to the preparation of organic fertilizers, organic fertilizers, and excretion fertilizers. It can solve the problems of large differences in nutrient content of fermentation products, slow reaction start-up speed, and low nutrient content in effective states. Concentration ammonia inhibits fermentation and organic acid accumulation problems, improves composition and structure, increases porosity and specific surface area
CN106399385AActive Publication Date: 2017-02-15SHANGHAI ACAD OF AGRI SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI ACAD OF AGRI SCI
Publication Date
2017-02-15

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Abstract

The invention discloses a method for producing methane and preparing a fertilizer simultaneously. The method comprises the following steps: (1) mixing excrement and urine of beasts and birds and crop straw at the weight ratio of (3.5-4.5):1, thus obtaining a mixed material; and (2) mixing rice straw charcoal or rice husk charcoal with the mixed material at the weight ratio of (0.5-2.5):10, placing the obtained mixture in an anaerobic fermentation tank, and carrying out fermentation. With the adoption of the method provided by the invention, the gas dredging and medium delivery generated in a reaction matrix can be effectively improved, the utilization efficiency of microbes for the matrix can be improved, and meanwhile, the high-quality fertilizer is produced.
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Description

technical field

[0001] The invention belongs to the field of agricultural fermentation, and specifically relates to a method for simultaneously producing methane and preparing fertilizer by adding rice stalk charcoal or rice husk charcoal from an external source. Background technique

[0002] Biogas production by anaerobic fermentation is an important direction for resource utilization of agricultural waste. According to the total solid content (TS) of materials, it can be divided into dry fermentation, semi-dry fermentation and wet fermentation. Among them, the anaerobic fermentation with a material concentration below 15% is wet anaerobic fermentation. This technology consumes a lot of clean water, the concentration of the product after fermentation is low, the dehydration treatment is difficult, and the fermentation product is difficult to effectively use when processing solid waste. Problems restrict the widespread promotion and application of this technology. Anaerobic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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