Substrate improvement of red mud container yard vegetation repairing

A technique of vegetation restoration and red mud, which is applied in the field of substrate improvement for vegetation restoration in red mud yards, can solve the problems of polluted ground surface, water source, low comprehensive utilization rate, and lack of popularization and application, achieving remarkable economic and social benefits, The effect of good improvement and simple process

Active Publication Date: 2007-09-05
BEIJING GENERAL RES INST OF MINING & METALLURGY +1
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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'

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] 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.

[0012] 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

[0013] As can be seen from the analysis results in Table 3, the pH value of the cultivation substrate 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 the plant. It can be applied to the slope protection greening of the red mud storage yard.

[0014] Also selected the followin...

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Abstract

A method for improving the matrix used to restore the vegetation on red mud stacking field features that the furaldehyde dreg is proportionally mixed with red mud for meeting the growth conditions of multiple plant kinds.

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

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Application Information

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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
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