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Microorganism bacterium agent for straw and excrement mixed composting

A microbial agent and composting technology, which is applied in the direction of microorganisms, microbial-based methods, and bio-organic part treatment, can solve problems such as inability to function, insufficient microbial strains, and insufficient oxygen to reduce odor. The generation and emission of gas, reducing the use of chemical deodorants, and reducing the loss of nutrients

Active Publication Date: 2013-08-07
山东土木启生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are big problems in this method: First, these single bacteria do have certain functions when cultured in the laboratory, but it is difficult to achieve the desired effect under the complex conditions of composting
This is because many single strains cannot grow and reproduce in the actual environment or are susceptible to the growth of other microorganisms; secondly, because there are many interactions between different microbial groups, the strains screened in the laboratory have certain functions. A single bacterium cannot fully prove that it has the same effect in a complex group; third, some microbial fermentation agents simply mix the fermentation strains together, and the antagonism between the strains is not thoroughly studied. This has just led to microbial strains in the fermentation process due to the antagonism between bacterial strains and can not achieve the desired effect; the fourth, can not effectively use the role of various enzymes produced by microorganisms
In the degradation process of organic matter, the degradation of enzymes is very critical, therefore, microbial agents that only contain microorganisms but do not contain enzymes cannot play a greater role
[0007] (3) The composition of the microbial agent is not rich enough and the pertinence is not strong
Although these microorganisms can be used in the composting process, they cannot solve some problems in the current composting process, such as the degradation and humification of hemicellulose and lignin, the suppression of odor, the maintenance of nitrogen, and insufficient oxygen.

Method used

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  • Microorganism bacterium agent for straw and excrement mixed composting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Straw and feces mixed composting microbial agent is mainly composed of soil bacteria, thermophilic bacteria, cellulose-degrading bacteria, lignin-degrading bacteria and deodorizing bacteria.

[0028] (1) Separation and screening of microorganisms

[0029] The method for the isolation of soil bacteria is to take forest soil samples as strains, and use the dilution plate method to separate different microorganisms. The culture medium is respectively beef extract peptone medium, PDA medium and Gaoshi No. 1 medium to separate the bacteria. Fungi and actinomycetes were cultured at 32°C, and the three microorganisms with the largest growth were screened out through growth measurement. After identification, these bacteria were the existing Bacillus ( Bacillus ), Enterobacteriaceae ( Escherichia coli ) and Pseudomonas ( Pseudomonas ); These fungi are the existing Mucor ( Mucor ), Aspergillus niger ( Aspergillus niger ) and Saccharomyces cerevisiae ( S. cerevisiae ), ...

Embodiment 3

[0051] Taking the same material without adding the microbial agent of Example 1 as a control, the method of Example 2 was used for composting, and the organic carbon and temperature changes of the materials were compared during the composting process.

[0052] Decomposed raw materials Organic carbon content of super raw materials% The organic carbon content of the material after decomposing is % Material organic carbon content decreased by % Pig manure + wheat straw + 0.1% microbial agent 45.22 23.54 34.64 pig manure + wheat straw 45.22 28.36 26.98

[0053] The results of organic carbon changes are shown in Table 1, and the results of compost temperature changes are shown in Table 1. figure 1 . It can be seen that the straw and feces mixed composting microbial bacterial agent of the present invention can promote the mixed aerobic composting process of straw and feces, shorten the composting cycle, improve the function of composting maturity...

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Abstract

The invention discloses a microorganism bacterium agent for straw and excrement mixed composting. The microorganism bacterium agent is composed of the following strains: (2-6)*10<10>cfu of hair mould per gram, (2-6)*10<10>cfu of trichoderma virens per gram, (2-6)*10<10>cfu of geotrichum candidum per gram, (2-8)*10<9>cfu of saccharomyces cerevisiae per gram, (3-5)*10<11>cfu of bacillus thermophilus per gram, (2-6)*10<11>cfu of lactobacillus thermophilus per gram, (2-8)*10<10>cfu of white rot fungi per gram, (2-8)*10<10>cfu of monilinia fructicola per gram, (3-7)*10<8>cfu of pseudomonas putida per gram, (2-6)*10<11>cfu of nitrosococcus per gram, (1-4)*10<6>cfu of green algae per gram and (2-5)*10<7>cfu of blue-green algae per gram. The microorganism bacterium agent can promote a straw and excrement mixed aerobatic composting progress, shorten a composting period, improve a composting rotten degree, accelerate biodegradation of organic matters, alleviate ozone generation and diffusion during composting and reduce loss of nutrient substances such as nitrogen, can be applied to composting of different straw and excrement raw materials for composting enterprises and is used for producing bio-organic fertilizers.

Description

technical field [0001] The invention belongs to the technical field of rapid composting bacterial agents for agricultural waste, and in particular relates to a microbial bacterial agent for mixed composting of straw and feces. Background technique [0002] At present, my country's annual output of straw is about 700 million tons, and the excrement discharge of livestock and poultry farming is about 1.73 billion tons. In addition, there are a large amount of activated sludge and municipal solid waste. The discarding of a large amount of agricultural waste not only causes a waste of resources, but also pollutes the environment. Today, the production of organic fertilizers through aerobic composting is a major way of dealing with agricultural waste. However, there are still many problems in the composting process. The composting cycle is long, the floor area is large, the composting process is full of odor pollution, and the loss of nitrogen and other nutrients is large. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12R1/885C12R1/865C12R1/40C12N1/16C12R1/225C12N1/14C12N1/20C12R1/07C05F11/08C12N1/12C12R1/89C05F17/00C12R1/785
CPCY02W30/40
Inventor 乔维川孙蓓蓓周礼洋田昆鹏许海燕刘珏王力王文轩沈红
Owner 山东土木启生物科技有限公司
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