Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Substrate improvement of red mud container yard vegetation repairing

A technology of vegetation restoration and red mud, which is applied in the field of matrix improvement of vegetation restoration in red mud yard, can solve the problems of polluted surface, water source, low comprehensive utilization rate, and lack of popular application, and achieves remarkable economic and social benefits. The effect of good improvement and simple process

Active Publication Date: 2009-08-05
BEIJING GENERAL RES INST OF MINING & METALLURGY +1
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low comprehensive utilization rate, it can only be stored for a long time, occupying a large amount of land, and consuming a lot of storage yard construction and maintenance management costs, and the alkali-containing waste liquid pollutes the ground surface and water sources, and dust is easily generated on the surface of the storage yard, causing serious damage to the ecological environment. , directly endanger people's health, and restrict the sustainable development of the aluminum industry
It has been studied to use fluorogypsum and peat to improve high-alkaline red mud, or to add straw and sugar industry waste liquid to red mud to make reclaimed plow soil, and achieved certain results. However, due to various limitations, this method It has not been popularized and applied, so the work of revegetation on the red mud stockpile has been explored

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The improvement was carried out by mixing red mud and furfural slag at a volume ratio of 1:1 and 2:1, and a planting test was carried out. After one year, the PH value and nutrients of the cultivation substrate were measured in Table 3.

[0014] Table 3. PH value and nutrients of cultivation substrate

[0015] Group ratio pH Total nitrogen (%) Available phosphorus (mg / kg) Available Potassium (mg / kg) 1∶1 8.66 0.2016 11.8 2373 2∶1 8.75 0.2079 6.8 2006

[0016] As can be seen from the analysis results in Table 3, the PH value of the cultivation medium has reached the requirements of some alkali-resistant varieties for soil, and the nutrient indicators such as total nitrogen, available phosphorus, and available potassium are all close to or better than the level of natural soil, fully satisfying the requirements of plants. It can be applied to the slope protection greening of the red mud storage yard.

[0017] Also selected the followi...

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 relates to a matrix improvement method for vegetation restoration of red mud yard, which is characterized in that furfural slag is added to red mud, and the volume proportion percentage of added furfural slag is: 50-70% of red mud and 30-50% of furfural slag. The field planting test proves that the improved red mud can satisfy the growth of many kinds of plants, such as tall fescue, elymus, dogbud root, ryegrass, sandawang, alfalfa, etc., and has been applied to the red mud pile Field dam slope protection greening. The improved red mud can also be used as landscaping soil for mine reclamation or landfill.

Description

technical field [0001] The invention relates to a matrix improvement method for vegetation restoration of red mud storage yards, which is used for vegetation restoration of red mud storage yards. Background technique [0002] Alumina production enterprises discharge a large amount of highly alkaline red mud every year, and its pH value is above 10-12. Due to the low comprehensive utilization rate, it can only be stored for a long time, occupying a large amount of land, and consuming more storage yard construction and maintenance management costs, and the alkali-containing waste liquid pollutes the ground surface and water sources, and the surface of the storage yard is prone to dust, causing serious damage to the ecological environment. , directly endanger people's health, and restrict the sustainable development of the aluminum industry. It has been studied to use fluorogypsum and peat to improve high-alkaline red mud, or to add straw and sugar industry waste liquid to red...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/00C09K17/40C09K103/00
Inventor 李小平徐立鹏吴亚君李积尧周连碧毛玉山路峰申恩华
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com