Soilless planting base material for vegetation recovery of metal ore waste rock field, and vegetation recovery construction method thereof

A technology for vegetation restoration and soilless planting, which is applied in planting substrates, botanical equipment and methods, and land preparation methods, etc., can solve the problem of the construction method for vegetation restoration of soilless planting substrates that has not yet been seen, and restricts the scale of vegetation restoration projects in metal mines. Implement and improve mine governance costs and other issues, to avoid a large amount of dust and the occupational health of workers, avoid secondary ecological damage, and have huge environmental and social benefits.

Active Publication Date: 2020-09-15
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
View PDF11 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waste rock field of a large-scale open-pit mining mine covers an area of ​​up to several square kilometers. According to the average covering soil of 20cm, the required planting earth volume reaches several million cubic meters. However, most of the mining areas in our country are distributed in deep mountain rocky areas, especially in the south. The mines have no soil at all, and some even purchase cultivated land from other places to obtain soil, which not only causes the loss of cultivated land, but also greatly increases the cost of mine management, which s...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Soilless planting base material for vegetation recovery of metal ore waste rock field, and vegetation recovery construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In this embodiment, the ecological restoration of the experimental area A is carried out, and the relevant technical parameters are as follows:

[0063] (1) During slope reconstruction, the height of the contour line is 20cm, the slope length of the large step slope is 10m, the distance between the main platforms is 30m, the width is 1.5m, the distance between the auxiliary platforms is 10m, and the width is 0.5m, and the platform width of the small step slope is 5cm;

[0064] (2) Thick paste-like acidic improvement material with a solid-to-liquid ratio of 3:10, corresponding to each square meter of waste rock field, the dosages of the HDS bottom mud, lime powder, rice husk and organic polymeric bonding agent are 0.1 m 3 , 2kg, 0.5kg and 5g;

[0065] (3) Soilless planting substrate, the volume ratio of HDS sediment, rice husk and fermented sludge is 25: 50: 25, based on the area of ​​the metal ore waste rock site to be restored, the organic polymeric binder and microbi...

Embodiment 2

[0068] In this embodiment, the ecological restoration of the experimental area B is carried out, and the relevant technical parameters are as follows:

[0069] (1) During slope reconstruction, the height of the contour line is 40cm, the slope length of the large step slope is 15m, the distance between the main platform is 45m, the width is 2.5m, the distance between the auxiliary platforms is 15m, the width is 1.0m, and the platform width of the small step slope is 15cm;

[0070] (2) Thick slurry acidic improvement material, the solid-to-liquid ratio is 5:10, corresponding to each square meter of waste rock field, the dosage of the HDS bottom mud, lime powder, rice husk and organic polymer binder is 0.3 m 3 , 4kg, 1.0kg and 10g;

[0071] (3) Soilless planting substrate, the volume ratio of HDS sediment, rice husk and fermented sludge is 50: 25: 25, based on the area of ​​the metal ore waste rock site to be restored, the organic polymeric binder and microbial bacteria The add...

Embodiment 3

[0074] In this embodiment, the ecological restoration of the experimental area C is carried out, and the relevant technical parameters are as follows:

[0075] (1) During the slope reconstruction, the height of the contour line is 30cm, the slope length of the large step slope is 12m, the distance between the main platform is 40m, the width is 2.5m, the distance between the auxiliary platforms is 12m, the width is 1.0m, and the platform width of the small step slope is 15cm;

[0076] (2) Thick paste-like acidic improvement material with a solid-to-liquid ratio of 4.5:10, corresponding to each square meter of waste rock field, the dosages of the HDS bottom mud, lime powder, rice husk and organic polymeric bonding agent are 0.3 m 3 , 3kg, 1.0kg and 8g;

[0077] (3) Soilless planting substrate, the volume ratio of HDS sediment, rice husk and fermented sludge is 40: 35: 25, based on the area of ​​the metal ore waste rock site to be restored, the organic polymeric binder and micro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a soilless planting base material for vegetation recovery of a metal ore waste rock field, and a vegetation recovery construction method thereof. The soilless planting base material comprises HDS bottom mud, rice hulls, fermented sludge, an organic polymerization crosslinking agent and a microbial agent. The vegetation recovery construction method comprises the following steps: pretreating the metal ore waste rock field, preparing a thick-slurry acidic improving material from an acidic improving matrix and water, spraying the thick-slurry acidic improving material to the surface of the to-be-recovered metal ore waste rock field, curing, uniformly mixing the soilless planting base material with plant seeds, and blowing and sowing the obtained mixture to the surface of the metal ore waste rock field containing the acidic improving layer. According to the soilless planting base material, recycling of solid waste and vegetation recovery without alien soil in a metalore waste rock field can be achieved, and the content of organic nitrogen, phosphorus, potassium and organic matters in soil is adjusted; and the vegetation recovery construction method is good in environmental benefit and social benefit, simple in process, good in effect and suitable for large-area application, and the problems that a large amount of dust exists in existing construction and is harmful to health of workers can be avoided.

Description

technical field [0001] The invention belongs to the technical field of vegetation restoration, and relates to a vegetation restoration of a metal ore waste rock field, in particular to a soilless planting base material for vegetation restoration of a metal ore waste rock field and a construction method for vegetation restoration thereof. Background technique [0002] Acidification of mining waste is a relatively common phenomenon in the prior art. Metal mines have a large proportion of sulfide in minerals, accounting for about 75% of the total amount of various minerals. Due to the extremely low grade and high mineral stripping ratio, a large amount of solid waste is generated; 1 ton of ore produces an average of 1.25 tons of waste rock. In recent years, about 130-140 million tons of waste rock have to be discharged per year, and billions of tons have been accumulated. [0003] The waste rocks are piled in the open air, and under the catalysis of microorganisms such as Thio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K17/40C05F5/00C05F11/08C05G3/00C05G3/80C05F15/00C05F17/20A01B79/02A01C7/00A01G17/00A01G20/00A01G22/00A01G24/12A01G24/20A01G24/25A01G24/30C09K101/00
CPCA01B79/02A01C7/00A01C7/008A01G17/005A01G20/00A01G22/00A01G24/12A01G24/20A01G24/25A01G24/30C05F5/002C05F7/00C05F11/08C05G3/00C09K17/40C09K2101/00C05F17/20C05G3/80Y02W30/40Y02A40/20
Inventor 王琼李昊孙伟孟磊杨越晴
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap