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Greening matrix of gangue crushing material and plant restoration technical method

A technology for greening substrate and coal gangue, which is applied in the fields of botanical equipment and methods, fertilizer mixtures, horticulture, etc., can solve the problems of low bactericide effect, secondary pollution, and short duration.

Inactive Publication Date: 2012-04-04
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the risk of secondary pollution from sludge, fly ash and limestone, etc., the effect of fungicides is low and the duration is short. At present, gangue hills are still covered with loess after being rolled by plastic machinery, and then planted with grass and trees. , artificially build a plant ecosystem, and improve the ecological environment of the gangue dump and its surrounding areas
At present, my country's land reclamation rate is only about 10%, one of the reasons is the lack of effective solid waste treatment technology and ecological restoration technology

Method used

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  • Greening matrix of gangue crushing material and plant restoration technical method
  • Greening matrix of gangue crushing material and plant restoration technical method
  • Greening matrix of gangue crushing material and plant restoration technical method

Examples

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Effect test

example 1

[0014] Example 1 Tobacco Pot Experiment

[0015] The coal gangue samples were collected from gangue hills in Huainan, Anhui, and the soil was selected from southern nutrient soil. The greening matrix of pulverized coal gangue mainly uses gangue as the matrix. After the crushed coal gangue passes through a 2mm sieve, the mixed gangue sample and soil are the greening matrix of pulverized coal gangue. The pulverized coal gangue and soil are mixed according to different ratios of 0:1, 1:2, 1:1, 2:1 and 1:0, so that the volume ratio of coal gangue to the greening matrix reaches: 0, 1 / 3, 1 / 2, 2 / 3 and 1, put into 15cm×13cm plastic pots, and sow after watering. Tobacco NC89 was sown on May 27, 2009, seedlings were planted within 30 days, and 2 healthy seedlings were left in each pot; when the tobacco grew for 3 months, two tobacco plants were taken out of the pot, and the plant height of tobacco in different proportions of coal gangue matrix was measured and biomass. The experimen...

example 2

[0018] Example 2 Solanum nigrum pot experiment

[0019] Coal gangue samples were collected from gangue hills in Anhui, and the soil was selected from southern nutrient soil. The greening matrix of pulverized coal gangue mainly uses coal gangue as the matrix, and the coal gangue sample is passed through a 2mm sieve and mixed with soil to form the greening matrix of pulverized coal gangue. The pulverized coal gangue and the soil are mixed according to different ratios of 0:1, 2:1 and 1:0, so that the volume ratio of coal gangue to the greening matrix reaches: 0, 2 / 3 and 1 respectively; Sow nightshade on June 3, 2009, sow 10 seeds per pot, and cover with a thin layer of soil. During its growth period, according to the lack of water in the pot, water it irregularly. When growing for 3 months, the plant height and biomass of Solanum nigrum in different proportions of coal gangue matrix were measured.

[0020] The experimental results are as follows:

[0021] Tobacco is a heavy ...

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Abstract

he invention relates to a plant restoration technical method for environment polluted solid waste, and specifically discloses a greening matrix of gangue crushing material and an ecology recovery technology by greening gangue mountain with plants. A mixture of gangue crushing material and soil is used as the greening matrix, wherein a volume ratio of gangue to southern nutrient soil flower soil is 1:2-2:1 (i.e. a volume of the gangue accounts for 1 / 3-1 / 2), to plant heavy metal noncumulative plant tobacco and Cd accumulative plant solanum nigrum, thereby realizing greening of the gangue mountain and ecological recovery. The plant restoration technology utilizing the gangue solid waste matrix can effectively improve air quality and ecological environment in coal mine zone.

Description

Technical field: [0001] The invention relates to a coal gangue hill ecological restoration matrix and plant restoration technology in a coal mining area, in particular to the vegetation greening technology of the coal gangue hill. Background technique: [0002] Coal is one of the important energy sources in my country. In 2007, the national raw coal output reached 2.55 billion tons. Coal gangue is solid waste in the process of coal mining and processing, and its output accounts for 10% to 30% of raw coal. Due to the impact of resource properties, economic conditions, technical equipment and market changes, the utilization rate of coal gangue in my country is less than 30%. Although some coal gangue can be reused as building materials and fuels, the comprehensive industrial utilization rate is still less than 5%. Therefore, most of the coal gangue are disposed of in the way of fixed-point stacking on the ground. With the increase of society's demand for energy, the amount ...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01G1/00A01G17/00
Inventor 张玉秀柴团耀黄琳胡振琪
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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