Ecological restoration method for sintering-method red mud stacking area side slope

A technology of ecological restoration and sintering method, which is applied in botany equipment and methods, excavation, soil protection, etc., to achieve high efficiency, reduce environmental pollution problems, and easy implementation

Active Publication Date: 2014-05-28
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to achieve the purpose of establishing a vegetation layer on the slope of the sintering red mud storage yard, fixing the ground surface, and preventing dust from flying, the present invention provides an ecological restoration method suitable for the slope of the sintering red mud storage yard, which increases the content of soil organic matter and improves the soil quality. Excellent rain erosion resistance performance, which solves the key problem of vegetation restoration on the side slope of the sintering red mud storage yard

Method used

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  • Ecological restoration method for sintering-method red mud stacking area side slope

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Experimental program
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Effect test

Embodiment 1

[0035] Zibo City, Shandong Province, Shandong Aluminum Co., Ltd. 1# red mud yard A test area, yard slope: 65-75°, pH value: 12.0. Follow the steps below in sequence (combining figure 1 Schematic diagram of the slope structure shown):

[0036] 1) Preparation of soil improvement layer: uniformly mix loam, furfural slag and binder (model A30 from Eisen, France), wherein the loam and furfural slag are mixed in a volume ratio of 3:7, and the binder Calculated based on the unit area to be sprayed, the specific dosage is 10g / m of adhesive 2 .

[0037] 2) Preparation of substrate layer: uniformly mix the greening substrate, loam, water-retaining agent and adhesive, wherein the greening substrate and loam are mixed according to the volume ratio of 2:8, and the water-retaining agent and adhesive are to be sprayed The unit area of ​​sowing is calculated, and the specific dosage is 10g / m2 of adhesive 2 , water retaining agent 15g / m 2 .

[0038] 3) Prepare the seed layer: uniformly m...

Embodiment 2

[0051] Zibo City, Shandong Province, Shandong Aluminum Co., Ltd. 1# red mud yard B test area, yard slope: 65-75°, pH value: 12.0. Follow the steps in order:

[0052] 1) Preparation of soil improvement layer: uniformly mix loam, furfural slag and binder (model A30 from Eisen, France), wherein the loam and furfural slag are mixed at a volume ratio of 5:5, and the binder Calculated based on the unit area to be sprayed, the specific dosage is 15g / m of adhesive 2 .

[0053] 2) Preparation of base material layer: uniformly mix the greening substrate, loam, water-retaining agent (French Eisen MP3500KM) and adhesive, among which, the greening substrate and loam are mixed according to the volume ratio of 3:7, water retention The agent and adhesive are calculated on the basis of the unit area to be sprayed, and the specific dosage is 15g / m of adhesive 2 , water retaining agent 20g / m 2 .

[0054] 3) Prepare the seed layer: uniformly mix the greening matrix, loam, water-retaining age...

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Abstract

The invention provides an ecological restoration method for a sintering-method red mud stacking area side slope. The method includes the following steps: clearing up the slope surface, laying a composite isolation layer, laying ecological rods, laying a bidirectional geogrid, ejecting a base material layer, ejecting a seed layer and laying a protecting layer. On the basis of existing form of side slope and plant ecological restoration and corresponding ecological environment and landscape effect, by taking a modern soil spraying technique as a means, soil ecological environment of the sintering-method red mud stacking area side slope is restored preferentially, growing environment for plant rootstock breeding is provided, afforestation of a red mud stacking area can be realized well, the problem of environmental pollution caused by the red mud stacking area is effectively reduced, and good ecological environment is created.

Description

technical field [0001] The invention belongs to the technical field of ecology, and in particular relates to an ecological restoration method for slopes. Background technique [0002] Red mud is the waste slag produced after bauxite is impregnated with strong alkali in the process of alumina production. It is a strong alkaline and harmful residue. At present, a large amount of red mud waste is mainly stored in the open-air dam wet method. The natural storage of red mud not only occupies a large amount of land, but also long-term storage of strong alkaline and high-salinity red mud waste causes leakage and infiltration, causing soil pollution. Severe alkalization pollutes the surface and underground water sources. In addition, the air-dried red mud dust on the surface of the red mud yard causes airborne particle pollution, which directly affects the regional ambient air quality. It causes direct or indirect harm to the ecological environment and human living environment. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D3/00A01G1/00
Inventor 王琼吴亮亮张华张望周连碧
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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