Method for producing bioorganic fertilizer from pig manure

A bio-organic fertilizer and pig manure technology is applied in the preparation of organic fertilizers, the treatment of bio-organic parts, and organic fertilizers. It can solve problems such as air pollution, nutrient volatilization and loss, and unreasonable carbon-nitrogen ratios. Effects of air pollution, nutrient loss reduction

Inactive Publication Date: 2009-10-28
ANHUI AGRICULTURAL UNIVERSITY
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Problems solved by technology

However, the natural composting of pig manure to produce organic fertilizer not only takes a long time, but also causes a lot of nutrients to be volatilized and lost during the composting process due to the unreasonable carbon-nitrogen ratio, and also causes air pollution.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0005] Geomycetes and Bacillus stearothermophilus are respectively inoculated in the culture material that the ratio of bran: rice straw powder: bacterial culture liquid is 5: 5: 15 (mass ratio), and cultivated at a suitable temperature until every gram is cultivated. The number of bacteria in the feed reaches 10 9 At the above time, the culture was stopped, dried at 50°C, and used as a fermenting agent for pig manure.

[0006] Take pig manure with a moisture content of about 65% and mix it with sawdust to make the carbon: nitrogen ratio between 16-25, and then add Geomycetes and Bacillus stearothermophilus mixed fermentation inoculum at a ratio of 0.3%, stir with pig manure and sawdust After the compost is uniform, the compost is naturally fermented, and the compost is turned every 4 days. When the compost temperature drops to the ambient temperature, the compost fermentation ends. The fermented pig manure is dried or air-dried and then pulverized, which is the bio-organic fe...

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Abstract

The invention discloses a method for producing a bioorganic fertilizer from pig manure, which comprises that: fresh pig manure of which the water content is about 65 percent is mixed with sawdust in proper proportion to make the ratio of carbon to nitrogen be between 16 and 25; the mixture is evenly stirred with geotrichum or Bacillus stearothermophilus zymophyte; composting fermentation is carried out; and the heap is turned regularly, when the temperature of the materials is reduced to the ambient temperature, and the materials are baked or dried by air and crushed to become the finished product of the bioorganic fertilizer. The bioorganic fertilizer has the nutrient content of 7 percent and the organic content of over 50 percent.

Description

Technical field: [0001] The invention relates to a method for producing biological organic fertilizer by utilizing pig manure fermentation. Background technique: [0002] With the development of animal husbandry, large-scale pig farms and pig breeding communities have increased rapidly, but the subsequent problem of a large number of pig manure disposal has become a major problem for livestock farms. The use of pig manure to produce bio-organic fertilizer not only solves the environmental pollution caused by a large amount of pig manure accumulation, but also provides necessary organic fertilizer for the development of green and organic agriculture. The possible harm caused by pig manure to the environment has found a more practical and effective way. However, the natural composting of pig manure to produce organic fertilizer not only takes a long time, but also causes a large amount of nutrients to be volatilized and lost during the composting process due to its unreasonab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F3/00
CPCY02A40/20Y02W30/40
Inventor 李吕木徐同宝
Owner ANHUI AGRICULTURAL UNIVERSITY
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