Soil amelioration method for coal subsidence area

A technology for soil improvement and subsidence area, applied in land preparation methods, fertilization methods, applications, etc., can solve problems such as damage to agricultural infrastructure, loss of soil nutrients and organic matter, deterioration of agricultural production environment, etc. and support, reduce the occurrence of pests and diseases, and reduce the effect of farming troubles

Inactive Publication Date: 2018-07-24
FUYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mining subsidence destroys the surface morphology, leading to accelerated loss of soil nutrients and organic matter due to the increase in slope of cultivated land, and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A soil improvement method in a coal subsidence area;

[0039] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0040] A soil improvement method in a coal subsidence area, the improvement technology is as follows:

[0041] 1. To clean up the coal and gangue in the soil in the coal subsidence area, first use a stone picker to clean up the large pieces of coal and gangue existing on the surface of the soil. The length or width of the coal gangue and coal is ≥ 6cm; The soil was repeatedly plowed 4 times until there were no large pieces of coal and coal gangue in the soil;

[0042]2. In step 1, plow the soil 4 times at the same time, add the corrosive agent and pH electrolyte to the soil, and evenly distribute the corrosive agent in the soil by plowing, and spray the pH electrolysis firstly during the 1st and 2nd plowing When the soil is plowed for the 3rd and 4th times, the corrosive agent is added, and the...

Embodiment 2

[0061] A soil improvement method in a coal subsidence area;

[0062] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0063] A soil improvement method in a coal subsidence area, the improvement technology is as follows:

[0064] 1. To clean up the coal and gangue in the soil in the coal subsidence area, first use a stone picker to clean up the large pieces of coal and gangue existing on the surface of the soil. The length or width of the coal gangue and coal is ≥ 6cm; The soil was repeatedly plowed 5 times until there were no large pieces of coal and coal gangue in the soil;

[0065] 2. In step 1, plow the soil 5 times at the same time, add the corrosive agent and pH electrolyte to the soil, and evenly distribute the corrosive agent in the soil by plowing, and spray the pH electrolysis firstly during the 1st and 2nd plowing When the soil is plowed for the 3rd, 4th and 5th time, add corrosive agent, the dosage ...

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Abstract

The invention discloses a soil amelioration method for a coal subsidence area, and relates to the technical field of remediation of coal subsidence areas. The amelioration technology comprises the following steps: cleaning and removing coal and coal gangue in soil of the coal subsidence area, adding a decaying agent and a pH electrolyte, spraying a biological conditioning agent and a pH electrolyte in the later period, performing fertilization, and finally enabling the soil to be idle for 3-6 months after ploughing is performed. The treatment method provided by the invention is simple and easyto operate, the operation is not complicated, the duration time is long, the soil in the coal subsidence area can be effectively and efficiently alleviated, and the processed soil in the coal subsidence area has a high utilization rate.

Description

Technical field: [0001] The invention relates to the technical field of restoration of coal subsidence areas, in particular to a method for improving soil in coal subsidence areas. Background technique: [0002] The sunken area left after coal mining. Agreed with the subsidence zone. Comprehensive management of coal mining subsidence areas is generally considered to be a difficult problem in the world. Due to the relatively large reserves of mineral resources in the cities where the mining subsidence area is located, the distribution range is wide, and the development time is generally relatively long. The production activities in the mining area and the waste gas, waste water, and waste residues they produce have seriously polluted the surrounding environment. The mining subsidence destroyed the surface morphology, resulting in the accelerated loss of soil nutrients and organic matter due to the increase in the slope of cultivated land, and a sharp drop in fertility. At ...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01C21/00C05G3/04C05F17/00C05G3/00C05G3/80
CPCA01B79/02A01C21/005C05D1/00C05D3/02C05F17/00C05G3/00C05G3/80C05D3/00C05D9/00C05F3/00C05F5/002C05F11/00C05F11/02C05F11/08Y02W30/40
Inventor 偶春姚侠妹黄元晶韩玉平
Owner FUYANG NORMAL UNIVERSITY
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