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Method for repairing rare earth mine soil pollution

A soil pollution and mine technology, applied in the field of soil pollution remediation of rare earth mines, can solve the problems of large influence and limitation on the living and growing environment of microorganisms, and achieve the effects of reducing costs, realizing recycling and improving soil physical and chemical properties.

Inactive Publication Date: 2021-06-29
INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an emerging repair method, microorganisms are characterized by low cost and environmental friendliness, but the survival and growth of microorganisms are greatly affected by the environment and are limited in the application process.

Method used

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  • Method for repairing rare earth mine soil pollution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 40 parts of calcium phosphate, 40 parts of potassium nitrate, 40 parts of calcium nitrate, 30 parts of limestone, 30 parts of coal powder ash, and 2 parts of borax into water, mix well, and form a solution to obtain a mixed solution. 40 parts of rice straw, 35 parts of peach leaves, 25 parts of dried edamame sprouts, 16 parts of cow dung, 14 parts of plant ash, and 10 parts of chitosan are placed in a mixing mixer and mixed to obtain a mixture, and then added to obtain mixed solution, mixed evenly, left standstill, and dried to obtain a semi-finished product, 120 parts of humus and semi-finished product were mixed evenly to obtain a composition, and the composition was evenly sprinkled on the surface of the mine soil to make the composition and the surface of the mine The soil is mixed evenly, and the lentil magnei is put in the soil, and then the horseshoe is planted, and the water is sprayed on the surface of the soil, and the moisture content of the soil is 20-40%...

Embodiment 2

[0017] Add 40 parts of calcium phosphate, 40 parts of potassium nitrate, 40 parts of calcium nitrate, 30 parts of limestone, 30 parts of coal powder ash, and 2 parts of borax into water, mix well, and form a solution to obtain a mixed solution. 40 parts of rice straw, 35 parts of peach leaves, 25 parts of dried edamame sprouts, 16 parts of cow dung, 14 parts of plant ash, and 10 parts of chitosan are placed in a mixing mixer and mixed to obtain a mixture, and then added to obtain mixed solution, mixed evenly, left standstill, and dried to obtain a semi-finished product, 120 parts of humus and semi-finished product were mixed evenly to obtain a composition, and the composition was evenly sprinkled on the surface of the mine soil to make the composition and the surface of the mine Mix the soil evenly, spray water on the surface of the soil, and make the moisture content of the soil 20-40%.

Embodiment 3

[0019] Put 40 parts of rice straw, 35 parts of peach leaves, 25 parts of dried edamame sprouts, 16 parts of cow dung, 14 parts of plant ash, and 10 parts of chitosan in a mixing mixer to obtain a mixture, and then add The mixed solution obtained is mixed uniformly, left standing, and dried to obtain a semi-finished product, and 120 parts of humus and semi-finished product are mixed uniformly to obtain a composition, and the composition is evenly sprinkled on the surface of the mine soil to make the composition and the mine The surface soil is mixed evenly, and the lentil bean worm is put into the soil, and then the horseshoe is planted, and water is sprayed on the surface of the soil, and the moisture content of the soil is 20-40%.

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Abstract

The invention belongs to the field of mine soil pollution treatment, and particularly relates to a method for repairing rare earth mine soil pollution. Through the synergistic effect of all the raw materials, heavy metal in the mine soil can be reduced, the fertility of the soil is improved, meanwhile, recycling of waste is achieved, the cost is reduced, and in the mine soil remediation method, through the synergistic effect of a modifier, animal remediation and plant remediation, the physical and chemical properties of the soil are obviously improved, and the method for repairing the mine soil is simple and practical.

Description

technical field [0001] The invention belongs to the field of mine soil pollution control, and in particular relates to a method for repairing rare earth mine soil pollution. Background technique [0002] my country's rare earth ore reserves account for about 80% of the world's total. Known as the "Kingdom of Rare Earths", the overall distribution is "light in the north and heavy in the south". Jiangxi is rich in typical ion-type rare earth ores, and its reserves account for 2 / 3 of the country's total, so it is a major exporter of rare earth ores. Due to the limitations of mining technology, disorderly mining and management chaos, the soil vegetation and ecological environment of Jiangxi rare earth mines have been severely damaged. Jiangxi's pool leaching, heap leaching and in-situ leaching processes all inevitably lead to soil structure damage, resulting in soil acidification, heavy metal pollution, soil barrenness and leaching agent residues. Both pool leaching and heap l...

Claims

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Application Information

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IPC IPC(8): B09C1/10C09K17/42
CPCB09C1/10B09C1/105C09K17/42C09K2101/00
Inventor 刘益仁吕真真蓝贤瑾侯红乾冀建华刘秀梅王福全
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI