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Ecological recovery matrix for vanadium ore waste rock stockyard, preparation method and application thereof

A technology for ecological restoration and waste rock piles, applied in the application, organic fertilizer, fertilization device, etc., can solve the problems of poor nutrient composition of waste rock, irregular stacking, etc., achieve rapid ecological restoration, protect land resources, and reduce waste rock piles stock effect

Active Publication Date: 2016-11-02
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most gangue yards and waste rock storage yards are stacked irregularly. At the same time, the discarded waste rock has poor nutritional content and serious soil erosion. It is very easy to produce leaching water from rainwater. The leaching water is acidic and contains vanadium, arsenic, lead, zinc, etc. Heavy metals, after entering the water body, enter the local rivers and reservoirs with the mountain runoff

Method used

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  • Ecological recovery matrix for vanadium ore waste rock stockyard, preparation method and application thereof
  • Ecological recovery matrix for vanadium ore waste rock stockyard, preparation method and application thereof
  • Ecological recovery matrix for vanadium ore waste rock stockyard, preparation method and application thereof

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Embodiment 1

[0029] The present invention is aimed at the vanadium ore waste rock stockpile, and the characteristics of the ecological restoration matrix are as follows: the particle size of the crushed waste rock in the stockpile is 0.25-2cm, and the SiO in the waste rock 2 As the main component, it also contains basic metals such as Al, Ca, Fe, Ba, K, V, and less heavy metals such as Pb, Cr, Cd, As, and a small amount of S. It belongs to general industrial solid waste and has the ability to produce acid Potential, but the acid production capacity is weak, and the pH value is about 8; the soil is taken from the topsoil of the surrounding farmland, the particle size is less than 1mm, the pH value is 6, and the nutrient content is high.

[0030] Then the selected agricultural waste (rice husk charcoal and sawdust), vermiculite, bio-organic fertilizer (chicken manure) and water retaining agent were prepared in proportion. Select ryegrass as the planting plant. The characteristics of each ad...

Embodiment 2

[0047] The waste rock dump of Zhijiagou vanadium mine in Yunxi Pingfan Mining, Hubei Province was selected for ecological restoration, and the ecological restoration matrix and vegetation combination of the waste rock dump were applied to the slope and platform of the waste rock dump of Zhijiagou vanadium mine in Yunxi Pingfan Mining, Hubei Province. The distribution of waste rocks in the Zhijiagou stope is uniform and the terrain is relatively gentle, which is suitable for large-scale vegetation restoration site conditions, and the vegetation restoration is less difficult. The distribution of waste rock dumps in Zhijiagou is relatively concentrated, with an area of ​​about 10,000m 2 . Its stockpiles are large and the pollution is serious, causing certain heavy metal pollution to the surrounding farmland soil, and at the same time bringing certain impacts on the living environment of the surrounding residents. The slope is between 30-40°, the slope length is 5-10m, and the pl...

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Abstract

The present invention discloses an ecological recovery matrix for vanadium ore waste rock stockyard. The ecological recovery matrix comprises, by weight, 0-100 parts of crushed stockyard waste rock, 0-100 parts of soil portions, and a matrix additive accounting for 1.75-5.25 wt.% of the total weight of crushed waste rock and soil; the matrix additive includes 0.5-1.5% of agricultural wastes, 0.5-1.5% of vermiculite, 0.5-1.5% of biological organic fertilizer, and 0.25-0.75% of a water-retaining agent. The agricultural waste contains 20-80% of rice husk carbon and 20-80% saw wood residue. The invention realizes the fast recovery of the ecological waste vanadium ore yard through ecological restoration technology. In order to achieve the environmental pollution on the surrounding soil management of waste rock yard, improve the surrounding habitat Living and living environment of the people.

Description

technical field [0001] The invention relates to the technical field of ecological restoration of abandoned metal mines and restoration of polluted sites in surrounding areas. Specifically, the invention relates to an ecological restoration matrix of vanadium ore waste rock stockpile and its preparation method and application. Background technique [0002] my country is relatively rich in vanadium resources, most of which exist in the form of "stone coal type", mainly distributed in Hebei, Sichuan, Hunan, Hubei, Guangxi and other provinces. Because vanadium ore is often associated with radioactive mineral resources, its grade is low. The mining process of vanadium mines will cause serious damage to the surface. When the surface runoff develops in the rainy season, it will cause soil erosion and waterlogging; in the dry season, the surface water will infiltrate and cause the river to stop flowing. The heavy metal pollution in the surrounding area is serious. At the same time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/06C05G3/70C05G3/80
CPCC05D9/00C05G3/00C05G3/70C05G3/80C05F3/00C05F11/00
Inventor 张望张华周连碧赵志龙王琼
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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