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Mine microbial community conditioning material as well as preparation method and application thereof

A microbial community and microbial technology, applied to the treatment of biological organic parts, the removal of solid waste, the restoration of polluted soil, etc., can solve the problems that vegetation communities cannot be effectively constructed, mine soil hinders ecological restoration, and plant seeds cannot germinate, etc. Achieve the effect of avoiding acidification problem, avoiding carbon source and substrate, and good effect

Active Publication Date: 2022-05-27
SHAOGUAN TAOLIN GREEN TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, ecological restoration is an important means to control the pollution of heavy metal mines at the source, but the extreme acidity of mine soil seriously hinders the implementation of ecological restoration
The extreme acidity caused by acidification prevents plant seeds from germinating, and the vegetation community cannot be effectively constructed
At present, the existing technology still stays on the idea of ​​adding alkaline materials to neutralize the existing acidity. However, as the acidification of the soil continues to release the potential of internal acid production, this type of technology can only achieve certain results in the early stage, and will still fail in the later stage. Acid reflux problem occurs

Method used

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  • Mine microbial community conditioning material as well as preparation method and application thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0048] Example 1 Preparation of mine microbial community conditioning material from copper mine tailings

[0049] The preparation site of the conditioning material in this example is located at the Chengmenshan Copper Mine in Jiujiang, Jiangxi. The tailings of the copper mine were screened during the production process, and the coarse sand of the tailings was used by the mine to prepare building materials; the fine sand of the tailings could not be used for the manufacture of building materials. In the warehouse, we have faced the problem of nowhere to stack. Select the mine tailings fine sand as the material to prepare the mine microbial community conditioning material. The specific steps are as follows:

[0050] (1) Select the above-mentioned tailings (with a mud content of about 5% and a pH of about 8.0), and use a block making machine to form a hollow block structure; the exterior and cavity of the hollow block structure are both cube-shaped and cube-shaped , the outer s...

Embodiment 2

[0054] Example 2 Mine microbial community conditioning material for copper mine dump remediation

[0055] The implementation site of this embodiment is located in the acid dump of the Dexing Copper Mine in Shangrao, Jiangxi. The treatment area of ​​this area is 52,000 square meters, and the soil pH value is as low as 2.7. The acidification problem has resulted in no plant growth in the entire area, and further problems such as acid waste water spillover and serious soil erosion have occurred, which have a great impact on the surrounding ecological environment. The above-prepared mine microbial community conditioning block is used for the treatment of the acid dump, and the specific repair steps are as follows:

[0056] (1) excavation pits are excavated according to the horizontal spacing and vertical spacing of the acid mine soil of the above-mentioned dump site at a spacing of 5m, the length of the pit is 15cm, the width is 15cm, and the depth of the pit is 35cm;

[0057] (2...

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Abstract

The invention provides a mine microbial community conditioning material as well as a preparation method and application thereof. The conditioning material is prepared by the following steps: (1) preparing tailings into a hollow structure by adopting a block making machine, and forming an opening; (2) filling industrial and agricultural wastes rich in organic matters into a middle cavity of the hollow structure obtained in the step (1); and (3) inoculating anaerobic or facultative anaerobic microorganisms with an iron / sulfur reduction function on the industrial and agricultural wastes, and then sealing by using tailings added with viscous materials. According to the conditioning material, waste tailings are used as materials, efficient remediation of mine ecology can be achieved, and the purposes of adjusting the microbial community structure of surrounding mine soil, inhibiting growth of acid-producing microorganisms and controlling acidification of the heavy metal mine soil from the source are achieved through reproduction of microorganisms inoculated in the cavity. The conditioning material is simple in preparation method, low in cost, outstanding in effect and suitable for large-area application, the utilization rate of tailing waste is increased, and a win-win mode of comprehensive utilization of tailings and ecological restoration of mines is established.

Description

technical field [0001] The invention belongs to the technical field of tailings resource utilization and mine ecological restoration, and particularly relates to a mine microbial community conditioning material and a preparation method and application thereof. Background technique [0002] Tailings are the residues after beneficiation of mines, and have become one of the serious mine problems. The demand for mineral resources in my country is huge, and the tailings stockpile and area are huge. According to relevant statistics, the total amount of tailings in my country has reached 60 billion tons, occupying a land area of ​​more than 1.1 million hectares. The emissions of tailings account for more than one-third of the total emissions of bulk industrial solid waste. In addition, long-term storage of tailings is also prone to safety and environmental problems, such as dam failure and heavy metal pollution, which is one of the major disaster hazards. The resource utilizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/30B09B3/65B09B5/00B09C1/10
CPCB09B3/00B09B5/00B09C1/105B09C2101/00Y02W30/40
Inventor 杨涛涛熊衍良毛喆张金桃梅力吴建强舒玮康亮华于虎
Owner SHAOGUAN TAOLIN GREEN TECH
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