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Preparation method of storable pig manure and straw biogas mixture fermentation raw material

A technology for fermenting raw materials and pig manure, applied in fermentation, chemical instruments and methods, waste fuels, etc., can solve problems such as polluted environment, decreased gas production potential, and slow start of fermentation, so as to solve environmental pollution, suppress losses, and start quickly Effect

Inactive Publication Date: 2017-08-08
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for preparing a storable pig manure straw biogas mixed fermentation raw material, which can effectively solve the problem of obvious decline in gas production potential of pig manure and slow start of rice straw biogas fermentation as the storage time increases At the same time, the utilization of rice straw biogas not only obtains energy but also solves the problem of pollution caused by rice straw and farm manure to the rural environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] 0.06kg of fresh-keeping beneficial bacteria (EM bacteria preservative), 0.012kg of deodorizing bacteria (EM bacteria livestock and poultry manure deodorant) and 0.6kg of water are prepared into a deodorizing and fresh-keeping liquid, which is effective for pig manure (dry matter content 22%- 23%) 60kg for processing; dry rice straw 30kg, crush it; rice bran 10kg, mix pig manure, dry rice straw, and rice bran to make biogas mixed fermentation raw materials, and store for 30 days. With 60kg of untreated fresh pig manure, 30kg of dry rice straw, and 10kg of rice bran, a comparative test of gas production performance was carried out. The comparison test time was the summer of 2014. The test biogas digester was an 8 cubic household biogas digester. The test time was 60 days. The results as follows:

[0027] The start-up time (can be ignited normally) is the same, the gas production of biogas mixed fermentation raw materials during the test period reaches 85% of the gas produ...

example 2

[0029] 0.055kg of fresh-keeping beneficial bacteria (EM bacteria preservative), 0.011kg of deodorizing bacteria (EM bacteria livestock and poultry manure deodorant), and 0.55kg of water are prepared into a deodorizing and fresh-keeping liquid, which is effective for pig manure (dry matter content 20%- 21%) 55kg for processing; dry rice straw 35kg, crush it; rice bran 10kg, mix pig manure, dry rice straw, and rice bran to make biogas mixed fermentation raw materials, store for 30 days; and untreated fresh pig manure 55kg , 35kg of dry rice straw and 10kg of rice bran were used to conduct a comparative test of gas production performance. The comparative test time was the summer of 2014. The test biogas digester was an 8 cubic household biogas digester, and the test time was 60 days. The results are as follows:

[0030] The start-up time (can be ignited normally) is the same, the gas production of biogas mixed fermentation raw materials during the test period reaches 88% of the ga...

example 3

[0032] 0.05kg of fresh-keeping beneficial bacteria (EM bacteria preservative), 0.01kg of deodorizing bacteria (EM bacteria livestock and poultry manure deodorant), and 0.5kg of water are prepared into a deodorizing and fresh-keeping solution, which is effective for pig manure (dry matter content 18%- 19%) 50kg for processing; dry rice straw 40kg, crush it; rice bran 10kg, mix pig manure, dry rice straw, and rice bran to make biogas mixed fermentation raw materials, store for 30 days, and untreated fresh pig manure 50kg , 40kg of dry rice straw, 10kg of rice bran, and a comparative test of gas production performance was carried out. The comparative test time was in the autumn of 2014. The test biogas digester was an 8 cubic household biogas digester, and the test time was 60 days. The results are as follows:

[0033] The start-up time (can be ignited normally) is the same. During the test period, the gas production of biogas mixed fermentation raw materials reached 90% of the ga...

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Abstract

The invention discloses a preparation method of a storable pig manure and straw biogas mixture fermentation raw material. The preparation method comprises the following operation steps: 1) performing deodorization and refreshment treatment on pig manure; 2) stirring and mixing the treated pig manure with dry rice straw and rice bran and then airing, bagging and sealing to obtain the storable pig manure and straw biogas mixture fermentation raw material, wherein weight part proportion of the pig manure to the dry rice straw to the rice bran is (50 to 60):(30 to 40):10. According to the preparation method disclosed by the invention, the pig manure, the rice straw and the rice bran are biogas utilized, so that not only energy is obtained, but also the problem that environmental pollution caused by pig farm manure and rice straw is solved; furthermore, the preparation method disclosed by the invention has the advantages that the biogas fermentation raw material can be longer stored, are convenient to transport, has high gas yield and can generate biogas in a balanced mode; the phenomena of dross and crusting are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of producing biogas, in particular to a method for preparing biogas mixed fermentation raw materials by using pig manure and rice straw as main raw materials. Background technique [0002] The popularization and application of biogas fermentation technology in rural areas has been continuously promoted, opening up a new way to solve the pollution of rural biomass raw materials to the environment. Straw and manure are the most important organic waste resources in rural my country, especially pig manure and rice straw. , is also a common fermentation raw material for biogas. As the storage time increases, the potential of pig manure to produce biogas continues to decline. At the same time, due to the continuous increase in scale farming, the biogas treatment method cannot complete the treatment of the manure produced. In addition, the seasonal characteristics of agricultural fertilizers are such that the manure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C02F11/04C02F11/00C02F103/20
CPCC02F11/00C02F11/04C02F2103/20C12P5/023Y02E50/30Y02P20/133Y02P20/59
Inventor 李金怀蒋湖波徐铁纯蒲小东黄凌志叶勇卫
Owner GUANGXI FORESTRY RES INST
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