Method for producing marsh gas by utilizing corn cob fungi slag as raw material through anaerobic fermentation

An anaerobic fermentation and corn cob technology, applied in the field of comprehensive utilization of agricultural waste, can solve environmental pollution and other problems, achieve high raw material utilization, eliminate pollution, and high fermentation efficiency

Inactive Publication Date: 2011-08-17
INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Using corncob residue as the main raw material to ferment biogas, it is easy to operate, has good gas production effect and high utilization rate of raw materials. It mainly solves the problem that edible fungus growers throw away the residue and pollutes the environment at will, and at the same time, it can recover biogas energy

Method used

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  • Method for producing marsh gas by utilizing corn cob fungi slag as raw material through anaerobic fermentation
  • Method for producing marsh gas by utilizing corn cob fungi slag as raw material through anaerobic fermentation
  • Method for producing marsh gas by utilizing corn cob fungi slag as raw material through anaerobic fermentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: the slag of corncob planting Flammulina velutipes, mixed fermentation with cow dung

[0048] The raw material of the mushroom residue is the corn cob residue of planting Flammulina velutipes, and the main nutrients are:

[0049]

[0050] The invention discloses a method for producing biogas by anaerobic fermentation using corncob residue as raw material. The ratio of fermentation raw materials is: 800kg of corncob residue, 200kg of cow dung, and 1kg of biogas agent. Proceed as follows:

[0051] (1) Remove the plastic bag and crush the corncob slag to make the slag into uniform granules.

[0052] (2) Soak the bacterium residue after the treatment of step (1) with 150 kg of 10 wt % ammonia for 24 hours after being fully soaked. Stir every 2-3h for 5min during soaking. The soaking container is a covered vat with a water outlet at the bottom. After soaking, the bacteria residue is washed with water until the pH value is 7.5. The discharged ammonia soaki...

Embodiment 2

[0059] Embodiment 2: the bacterium slag of Coprinus comatus planted with corncobs, mixed fermentation with pig manure

[0060] The raw material of the mushroom residue is the corn cob residue of planting Coprinus comatus, and the main nutrients are:

[0061]

[0062] A method for producing biogas by anaerobic fermentation using corncob residue as raw material, the fermentation raw material ratio: 900kg of corncob residue, 200kg of pig manure, and 1kg of biogas bacterial agent. Proceed as follows:

[0063] (1) Remove the plastic cloth from the fungus slag and crush it to make the slag into particles of uniform size.

[0064] (2) Soak the 180 kg of 10% ammonia water for 24 hours after fully soaking the fungus residue after the treatment in step (1). Stir every 2-3h for 5min during soaking. The soaking container is a covered vat with a water outlet at the bottom. After soaking, the bacteria residue is washed with water until the pH value is 8.0. The discharged ammonia soak...

Embodiment 3

[0070] Embodiment 3: corn cob planting oyster mushroom slag, mixed fermentation with pig manure and cow dung

[0071] The raw material of fungus residue is the corn cob residue of oyster mushroom planting, and the main nutrients are:

[0072]

[0073] A method for producing biogas by anaerobic fermentation using corn cob fungus residue as raw material, raw material ratio: 4000 kg of corn cob fungus residue, 500 kg of pig manure, 500 kg of cow dung, and 4 kg of biogas bacterial agent. Proceed as follows:

[0074] (1) Remove the plastic cloth and crush the fungus residue raw material until the raw material is uniform in size and without large pieces.

[0075] (2) Soak the bacterium residue after the treatment in step (1) with 600 kg of 10% ammonia water for 24 hours after being fully soaked. Stir every 2-3h for 5min during soaking. After soaking, wash the bacteria residue with water until the pH value is 7.8. The discharged ammonia soaking liquid is used for field fertili...

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Abstract

The invention discloses a method for producing marsh gas by utilizing corn cob fungi slag as a raw material through anaerobic fermentation. The method comprises the following steps: mixing the fungi slag wasted after corn cob is used as a main raw material to cultivate edible fungus with pig manure or cow dung, adding a methane reagent, and carrying out pile fermentation; and putting fermentationraw materials in a household methane-generating pit or an anaerobic reactor, wherein the addition amount of the raw materials is 80-130 kg per cubic meter of pit volume. In the invention, generation of methane via anerobic fermentation is achieved by carrying out reasonable proportioning, pretreatment, pile outside the pit, fermentation starting and the like on the fermentation raw materials, thereby effectively solving the problem that the pollution is caused by discarding the fungi slag at random and simultaneously turning waste into wealth. After the method is utilized, the gas can be normally generated by the fungi slag in the household, and the method is simple with no need of special equipment and can be applied and disseminated in edible fungus cultivating households.

Description

technical field [0001] The invention relates to a method for producing biogas by anaerobic fermentation using corn cob slag as a raw material, and belongs to the technical field of comprehensive utilization of agricultural waste. Background technique [0002] Cultivation materials for edible mushroom production mainly use agricultural and sideline products such as cottonseed hulls, sawdust, straw, corncobs, distiller's grains and crop straws as the main raw materials. During the production and cultivation of edible fungi, a large amount of waste cultivation materials, namely fungal residues, are produced. If calculated according to 70% biological efficiency, about 6 million tons of edible fungus wastes are produced in my country every year. Due to the low pH value of the fungus residue, it cannot directly fertilize the field. The natural dumping of these wastes in the environment will breed a variety of harmful organisms of edible fungi, such as various molds, mosquitoes, mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/04C05F17/00
CPCY02E50/343Y02E50/30Y02W30/40
Inventor 姚利袁长波张昌爱王艳芹刘英曹德宾边文范李国生
Owner INST OF SOIL & FERTILIZER SHANDONG ACAD OF AGRI SCI
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