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Slag matrix and preparation method and application thereof

A substrate and slag technology, applied in the field of slag substrate and its preparation, can solve the problems of difficulty in restoring vegetation, destruction of natural ecosystems, poor physical structure of waste slag, etc., so as to improve water permeability and ventilation capacity, seedling emergence rate and growth. The effect of height increase and favorable vegetation growth

Inactive Publication Date: 2020-09-18
BEIJING FORESTRY UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Mining and quarrying has greatly satisfied people's production and living needs, but it has also caused serious damage to the landscape and natural ecosystems. The environmental conditions of the abandoned land left over from the mining process are very harsh, especially the exposed and accumulated waste slag. Due to the waste slag Due to its poor physical structure, poor water and water retention capacity, and extreme barrenness, it is difficult to restore vegetation.
At the same time, a large amount of solid waste such as biological excrement, reed stalks, and garden waste will occupy a large amount of land, cause secondary pollution to the environment, and affect people's normal life. How to reduce the cost and science of ecological restoration of abandoned mines Reasonable disposal of these solid wastes are two urgent problems to be solved
[0003] At present, research on ecological restoration of abandoned mines mainly focuses on restoration strategies, engineering measures, restoration succession, soil improvement, plant species selection, and greening substrates. The research content of greening substrates mainly includes physical and chemical properties and improvement of spraying technology. , but there are few studies on the optimal ratio of greening substrates, and the current ratio of greening substrates is not ideal in the practical application of ecological restoration of abandoned mines. It is urgent to explore a substrate with excellent effects for ecological restoration of mines

Method used

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  • Slag matrix and preparation method and application thereof
  • Slag matrix and preparation method and application thereof
  • Slag matrix and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The proportion of the culture substrate in this embodiment is: 3000g of muck, 400g of cow dung, 50g of reed stalks, 20g of garden waste and straw decomposing agent.

[0025] In the present embodiment, 30 potted plants (diameter 16cm, height 12cm) are set, and the culture medium mixed according to the proportion is loaded into the flowerpot, and the reed stalk and the garden waste are fully decomposed with the slag and cow dung according to the proportion after they are fully decomposed. Uniformly mixed and applied, and evenly sowed the seeds of the seeds in turn, and then covered with the substrate with a thickness of 2cm, cultivated under natural light, watered all the flowerpots to a saturated state, and kept the external conditions at the same level, denoted as S 1 Group.

Embodiment 2-9

[0027] Same as Example 1, the only difference is that the ratio of the culture substrate is different, the specific ratio is shown in Table 1, which is respectively denoted as S 2-S 9 Group.

experiment example 1

[0032] Experimental example 1 (growth index of edulis edulis)

[0033] 1) Germination rate. Such as figure 1 As shown, the emergence rate of the control group was 6.67%. After adding the culture medium, the emergence rate of the treatment group was significantly higher than that of the control group (Pfigure 1 Different letters in the middle mean that there are significant differences among the treatments at the 0.05 level, and the other figures are the same.

[0034] 2) Growth height. Such as figure 2 The growth height trend of the edulis edulis shown, the seedling growth of the control group is relatively poor, and it died at 13d, and its height was 1.38cm; the treatment group increased with the prolongation of the culture time under the improvement of the substrate, and the height increment of embodiment 8 was the largest, It is 19.34cm, and embodiment 1 is the lowest, being 14.68cm.

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Abstract

The invention relates to a slag matrix and a preparation method and application thereof. Raw materials for preparing the slag matrix contain muck and cow dung, and further contain reed stems accounting for 0.01-0.2% of the total mass of the raw materials and garden waste accounting for 0.005-0.1% of the total mass of the raw materials. The low-cost greening matrix suitable for mine ecological restoration is provided for the current situation that waste slag is accumulated in quarry, the cost of mine ecological restoration is reduced, stacking of solid waste is reduced, engineering investment is reduced, land and vegetation resources are protected, and the problem of mine ecological restoration is solved. The slag matrix has a promoting effect on growth of lespedeza and festuca arundinaceaand has good comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of greening substrates, in particular to a slag substrate and its preparation method and application. Background technique [0002] Mining and quarrying has greatly satisfied people's production and living needs, but it has also caused serious damage to the landscape and natural ecosystems. The environmental conditions of the abandoned land left over from the mining process are very harsh, especially the exposed and accumulated waste slag. Due to the waste slag Due to its poor physical structure, poor water and water retention capacity, and extreme barrenness, it is difficult to restore vegetation. At the same time, a large amount of solid waste such as biological excrement, reed stalks, and garden waste will occupy a large amount of land, cause secondary pollution to the environment, and affect people's normal life. How to reduce the cost and science of ecological restoration of abandoned mines Reasonable ...

Claims

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Application Information

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IPC IPC(8): A01G24/17A01G24/20A01G24/22A01G24/23A01G17/00A01G20/00C05G3/80
CPCA01G17/005A01G20/00A01G24/17A01G24/20A01G24/22A01G24/23C05D9/00C05G3/80C05F3/00C05F11/00C05F11/08
Inventor 张艳吴海龙闫烨琛赵廷宁徐梦
Owner BEIJING FORESTRY UNIVERSITY
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