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Microbial degradation method of coal waste and application thereof

A technology of microbial degradation and waste, which is applied in the field of microbial degradation of coal waste, can solve the problem that coal slime is not fully and rationally utilized, and achieve the effect of improving resource utilization

Inactive Publication Date: 2019-06-07
叶荫人
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Both of these methods make the fine qualities of coal slime not fully and rationally utilized.

Method used

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  • Microbial degradation method of coal waste and application thereof
  • Microbial degradation method of coal waste and application thereof
  • Microbial degradation method of coal waste and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Biological agent amplification, comprising the following steps:

[0050] Each strain is amplified in the enrichment culture solution to obtain a liquid mother solution. Add sugar, pure water, yeast peptone, and maltodextrin to each microbial strain, respectively, and undergo amplification and fermentation at 45°C for 48 hours. The biological treatment bacteria are separately fermented and amplified, and then mixed with the adsorption carrier to obtain a separate solid microbial agent. Preferably, the adsorption carrier is rice bran.

[0051] The obtained solid bacterial agent was cultivated on behalf of Trilobite Agricultural Technology (Xiamen) Co., Ltd., wherein Geobacillus stearothermophilus (Geobacillus stearothermophilus) R2D2-6.626069934 had an effective viable count of 25 billion / gram, Bacillus colloidus (Bacillus stearothermophilus) mucilaginosus) is 40 billion / gram, Bacillus subtilis is 20 billion / gram, Bacillus amyloliquefaciens is 10 billion / gram, Streptomyces...

Embodiment 2

[0053] The biological treatment steps of coal slime are as follows:

[0054] The coal slime used comes from Shandong Zaozhuang Gas Fertilizer Coal. The coal slime used has an ash content of 55%, a sulfur content of 1.6-1.8, a moisture content of 12-13%, and a calorific value of 2500-2600 kcal, which is easy to form lumps. Such as figure 1 As shown, the display picture of the original coal slime delivered to the factory area before fermentation.

[0055] Check indicators before use.

[0056] The coal slime was sun-dried and pulverized to 10 mesh. After fermentation, it is crushed to 20-30 mesh.

[0057] Add mushroom slag, yeast peptone, and rice bran to the coal slime in the following amounts: coal slime: mushroom slag: yeast peptone: rice bran = 1000:1000:100:2.5, add water to keep the moisture content at 50-60%.

[0058] Then each solid bacterial agent prepared in Example 1 is added in proportion, and the addition amount is by mass ratio, coal slime: Geobacillus stearothe...

Embodiment 3

[0063] The coal slime used comes from the ash from the coal chemical gasification furnace of Ningxia Shenhua Group. The coal content is about 22% and the water content is 6%. It has a porous structure similar to activated carbon.

[0064] Check indicators before use.

[0065] The coal slime is sun-dried and crushed to 10 meshes, and then crushed to 20-30 meshes after fermentation.

[0066] Add mushroom slag, yeast peptone, and rice bran to the coal slime in the following amounts: coal slime: mushroom slag: yeast peptone: rice bran = 1000:1000:100:2.5, add water to keep the moisture content at 50-60%

[0067] Then each solid bacterial agent prepared in Example 1 is added in proportion, and the addition is, coal slime: Geobacillus stearothermophilus: Bacillus colloidus: Bacillus subtilis: Bacillus amyloliquefaciens: Streptomyces: wood Mold: Pseudomonas fluorescens = 1000:1.8:0.8:0.25:0.6:0.3:0.1:0.1.

[0068] Put it in at one time and stir evenly, and the stack is in a long st...

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Abstract

The invention relates to a microbial degradation method of coal waste, which comprises the following steps: coal slime is dried and then crushed; mushroom residue, yeast peptone and rice bran are added and uniformly mixed, and a compound microbial agent of Bacillus stearothermophilus, Bacillus mucilaginosus, Bacillus subtilis, Bacillus amyloliquefaciens, Streptomyces, Trichoderma and Pseudomonas fluorescens according to the weight ratio is added; after mixing, the stacking is in a long strip shape, when the temperature on the position below the stacking surface by 30 cm decreases to below 35 DEG C, the stacking is turned over 48-72 hours per time, and the fermentation time is 28-45 days. The invention is beneficial to promoting the utilization of coal slime resources, effectively utilizingsolid waste generated in the process of coal processing and use and in agricultural production and living, and is beneficial to environmental protection. And the method makes full use of the rare mineral elements and humic acid in coal slime to serve the revitalization of rural areas and the sustainable environment of green agriculture.

Description

technical field [0001] The invention belongs to the field of coal waste reuse, and relates to a microbial degradation method and application of coal waste. Background technique [0002] Coal slime is an impurity in coal and a by-product left in a specific process of coal washing. After washing, the coal slime has increased oxygen content, lower calorific value, and contains regenerated humic acid. A large amount of coal slime is produced in Shaanxi, Xinjiang, Inner Mongolia, Heilongjiang, Jiangxi, Yunnan, Sichuan, Henan and other provinces, and more high-quality coal slime is produced in Datong, Lingshi, Taiyuan Wujiashan, Pingxiang Mashan, Yunnan Luliang, Xinjiang Wutong The lignite in Wusu, Inner Mongolia, Hegang, Heilongjiang, and Qitaishan has a free humic acid content of 50% and an ash content of less than 20%. In addition, the coal slime in Jincheng, Shanxi, Gongxian, Henan, and Turpan, Xinjiang also contains a considerable amount of rot value. acid. [0003] Some pr...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05F17/00A23K10/12A23K10/28A23K10/37C12N1/20C12N1/14C12R1/07C12R1/01C12R1/125C12R1/465C12R1/885C12R1/39C05G3/80
CPCY02W30/40Y02P60/87
Inventor 叶荫人
Owner 叶荫人
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