Composite material for remedying mine wasteland as well as preparation method and application of composite material

A composite material and wasteland technology, which is applied in the field of composite materials for repairing mine wasteland and its preparation, can solve problems such as long time, and achieve the effects of easy control, easy availability of raw materials, and easy operation.

Inactive Publication Date: 2018-01-12
展亚男
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The consequences of environmental damage often take a long time to recover, and some are even irreversible

Method used

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  • Composite material for remedying mine wasteland as well as preparation method and application of composite material
  • Composite material for remedying mine wasteland as well as preparation method and application of composite material
  • Composite material for remedying mine wasteland as well as preparation method and application of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In an embodiment of the present invention, a composite material for repairing abandoned mine sites includes the following raw materials: 30 kg of apatite, 22 kg of wood vinegar, 31 kg of humic acid, 13 kg of disodium edetate, and 1 kg of azoxystrobin.

[0025] Crush the apatite, pass it through a 100-mesh sieve, add an acetic acid solution 10 times its mass, then raise the temperature to 70°C and heat and stir at this temperature at a stirring speed of 300r / min for 1.5h to obtain the treated apatite The solvent of the acetic acid solution is water, and the mass concentration of the acetic acid solution is 20%. Mix wood vinegar and azoxystrobin and stir at a stirring speed of 100r / min for 1.8h, then heat to 68°C and stir at this temperature for 0.5h; filter the filtrate to obtain mixture A. Mix humic acid with 22% aqueous solution of citric acid with a mass concentration 5 times its mass, heat to 88°C, and stir at this temperature for 55min at a stirring speed of 200r / mi...

Embodiment 2

[0027] In an embodiment of the present invention, a composite material for repairing abandoned mine sites includes the following raw materials: 40 kg of apatite, 30 kg of wood vinegar, 39 kg of humic acid, 21 kg of disodium edetate, and 5 kg of azoxystrobin.

[0028] Crush the apatite, pass it through a 150-mesh sieve, then add 12 times the mass of acetic acid solution, then raise the temperature to 75°C and heat and stir at this temperature at a stirring speed of 320r / min for 1.8h to obtain the apatite-treated product The solvent of the acetic acid solution is water, and the mass concentration of the acetic acid solution is 25%. Mix wood vinegar liquid with azoxystrobin and stir at a stirring speed of 150r / min for 2h, then heat to 70°C and stir at this temperature for 0.7h; filter the filtrate to obtain mixture A. Mix humic acid with 25% citric acid aqueous solution with a mass concentration 6 times its mass, heat to 90°C, and stir at this temperature for 60min at a stirring ...

Embodiment 3

[0030] In an embodiment of the present invention, a composite material for repairing abandoned mine sites includes the following raw materials: 32 kg of apatite, 24 kg of wood vinegar, 33 kg of humic acid, 15 kg of disodium edetate, and 2 kg of azoxystrobin.

[0031] Crush the apatite, pass it through a 150-mesh sieve, then add an acetic acid solution 11 times its mass, then raise the temperature to 72°C and heat and stir at this temperature at a stirring speed of 320r / min for 1.8h to obtain the treated apatite The solvent of the acetic acid solution is water, and the mass concentration of the acetic acid solution is 25%. Mix wood vinegar and azoxystrobin and stir at a stirring speed of 150r / min for 1.9h, then heat to 69°C and stir at this temperature for 0.7h; filter the filtrate to obtain mixture A. Mix humic acid with 25% citric acid aqueous solution with a mass concentration 6 times its mass, heat to 90°C, and stir at this temperature for 60min at a stirring speed of 220r / ...

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Abstract

The invention discloses a composite material for remedying a mine wasteland as well as a preparation method and application of the composite material. The composite material comprises the following raw materials in parts by weight: 30-40 parts of phosphorite, 22-30 parts of wood vinegar, 31-39 parts of humic acid, 13-21 parts of disodium ethylenediaminetetraacetate and 1-5 parts of azoxystrobin. The preparation method comprises the following steps: crushing the phosphorite, adding an acetic acid solution, and heating while stirring to obtain treated phosphorite; mixing the wood vinegar and azoxystrobin, stirring and filtering to obtain a mixture A; mixing the humic acid and an aqueous citric acid solution, and heating to obtain a mixture B; mixing the treated phosphorite, the mixture A, the mixture B and the disodium ethylenediaminetetraacetate, uniformly stirring, performing ultrasonic treatment and drying to obtain the composite material. The composite material for remedying the minewasteland increases the germination rate and the survival rate of plants and the ecological remediation rate of a mine, can adsorb and absorb heavy metals which cannot be dissociated from soil, and can effectively improve soil of the mine wasteland, a heavy metal-contaminated land and the like.

Description

technical field [0001] The invention relates to the technical field of land repair, in particular to a composite material for repairing abandoned mine land, a preparation method and application thereof. Background technique [0002] The irrational development and utilization of human beings has caused the destruction of natural ecological environments such as forests and grasslands, thereby deteriorating the living conditions of humans, animals, and plants; such as: soil erosion, land desertification, soil salinization, and biodiversity reduction, etc. Wait. The consequences of environmental damage often take a long time to recover, and some are even irreversible. Among them, mine abandoned land refers to the land that is destroyed in mining activities and cannot be used without certain treatment. The basic idea of ​​ecological reclamation of mine abandoned land is vegetation restoration, but the biggest difficulty lies in the low content of organic matter in the abandoned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/08C05G3/00C05G3/04C09K101/00C05G3/80
Inventor 展亚男
Owner 展亚男
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