Slag mountain humic acid repairing and greening method

A humic acid and slag technology, which is applied in the field of humic acid restoration and greening of slag mountains and slag mountain treatment, can solve problems such as heavy metal ion pollution, and achieve the effects of low treatment cost, reasonable restoration and greening methods, and good effects.

Active Publication Date: 2019-04-12
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

In addition, rainwater eluent also produces heavy metal ion pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Embodiment, the first step, when the slag is added to the crushing of the cone crusher, add 0.1%-5% humic acid substances and a small amount of water, crush to produce artificial soil particles smaller than 0.5mm, eliminate dust, and use humic acid. In-situ reduction, passivation and solidification of heavy metals, strengthening and mixing with sodium humate during slag crushing, forming water-stable aggregates larger than 0.25mm; due to the full contact of heavy metals on the fresh interface produced by crushing and sodium humate, strengthening In situ reduction and complexation fixation reactions.

[0015] The second step is to add semi-charred bacterial fertilizer or slag bacterial fertilizer according to the mixing ratio of semi-charred bacterial fertilizer and artificial soil 1:20-300, mix evenly, the carrier bacterial fertilizer will continue to produce active humic acid, and realize the combination of blood transfusion type and hematopoietic type , to ensure that...

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PUM

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Abstract

The invention relates to a slag mountain humic acid repairing and greening method. The slag mountain humic acid repairing and greening method comprises the following steps: 1, adding a humic acid material of 0.1 to 5 percent during slag crushing and preparing artificial soil less than 0.5 mm; 2, adding a carbocoal bacteria fertilizer or a slag bacteria fertilizer according to that the mixing ratioof the carrier bacteria fertilizer to the artificial soil is 1 to 20-300, so as to to prepare artificial soil; and 3, covering the surface of the slag mountain with the artificial soil layer of 100 to 2000 mm, cover with the artificial soil layer of 100 to 300 mm again, planting flowers and trees and performing careful maintenance to form a greening covering layer.

Description

1. Technical field [0001] The humic acid restoration and greening method of slag hills provided by the invention relates to the treatment of slag hills, in particular to the treatment and greening of coal gangue hills. 2. Background technology [0002] The discharge of stripped gangue, coal road gangue, rock road gangue, hand-selected gangue, and coal preparation plant tailings in coal mines and coal preparation plants accounts for about 10% to 20% of the total coal output. With the development of coal mining technology, gangue Yield will increase accordingly. At present, the annual discharge of gangue in China is more than 100 million tons, while the comprehensive utilization rate is less than 20%. Now 1.477 billion tons of gangue have been piled up to form a gangue dump, covering an area of ​​13,300 ha. The spontaneous combustion, explosion, landslide and gangue dump The leached water pollutes the environment of the mining area. It is an effective method to prevent spont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02B09C1/08
CPCA01B79/02B09C1/08C05F11/08B09B1/00B09C1/10B09C2101/00C21B2400/02B09B3/20B02C4/28B02C15/00B09B1/004C21B3/06C21C7/04
Inventor 田原宇乔英云谢克昌杨朝合
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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