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Method for remedying heavy metal polluted mining soil

A heavy metal and soil technology, applied in land preparation methods, applications, agricultural machinery and implements, etc., can solve the problems of not adapting to the new environment, and the survival rate of enriched plants cannot be guaranteed, so as to improve the survival rate and reduce plant growth. The probability of infection with pests and diseases, the strong and lasting effect of fertilizer

Inactive Publication Date: 2012-07-25
CHANGSHU JIASHENG AGRI SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the green restoration of soil in heavy metal-contaminated mining areas is mainly to plant heavy metal-enriched plants in heavy metal-contaminated mining areas, and to achieve the purpose of restoration through the absorption of enriched plants. The reason is that plants need a buffer period after they are transplanted to polluted areas. If they are directly transplanted to heavily polluted areas, even high-enrichment plants will still not be able to adapt if they do not get a buffer opportunity. new environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for repairing heavy metal-contaminated mining area soil, using fish scale pits for site preparation, when digging pits, different layers of soil are stacked separately, topsoil and subsoil are separated, and non-polluting soil is used for backup; the excavated tree pits are first filled in and dug out when digging tree pits topsoil, and then the tree pit filler and the unpolluted soil dug out in situ or guest soil are mixed evenly into the tree pit, and then filled with subsoil or guest soil. The tree pit is 40 centimeters long, 40 centimeters wide, 50 cm deep, the soil in the tree pit is composed of surface layer, middle layer and bottom layer, the thickness of the surface layer is 5 cm, the thickness of the bottom layer is 5 cm, and the thickness of the middle layer is 40 cm; the surface layer is subsoil or guest soil, and the middle layer is filler and The non-polluted soil or guest soil excavated in situ is uniformly mixed, the bottom layer is topsoil or gue...

Embodiment 2

[0020] A method for repairing heavy metal-contaminated mining area soil, using fish scale pits for site preparation, when digging pits, different layers of soil are stacked separately, topsoil and subsoil are separated, and non-polluting soil is used for backup; the excavated tree pits are first filled in and dug out when digging tree pits topsoil, and then the tree pit filler and the unpolluted soil or guest soil dug out in situ are mixed and evenly filled in the tree pit, and then filled with subsoil or guest soil. The tree pit is 60 cm long, 60 cm wide, The depth is 70 cm. The soil in the tree pit is composed of surface layer, middle layer and bottom layer. The thickness of the surface layer is 15 cm, the thickness of the bottom layer is 15 cm, and the thickness of the middle layer is 40 cm. The surface layer is subsoil or guest soil, and the middle layer is filler and The non-polluted soil or guest soil excavated in situ is uniformly mixed, the bottom layer is topsoil or gu...

Embodiment 3

[0024] A method for repairing heavy metal-contaminated mining area soil, using fish scale pits for site preparation, when digging pits, different layers of soil are stacked separately, topsoil and subsoil are separated, and non-polluting soil is used for backup; the excavated tree pits are first filled in and dug out when digging tree pits topsoil, and then the tree pit filler and the unpolluted soil dug out in situ or guest soil are mixed evenly into the tree pit, and then filled with subsoil or guest soil. The tree pit is 50 centimeters long, 50 centimeters wide, 50 cm deep, the soil in the tree pit is composed of surface layer, middle layer and bottom layer, the thickness of the surface layer is 10 cm, the thickness of the bottom layer is 10 cm, and the thickness of the middle layer is 30 cm; The non-polluted soil or guest soil excavated in situ is uniformly mixed, the bottom layer is topsoil or guest soil, and the filling material for each tree pit is organic compound ferti...

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Abstract

The invention discloses a method for remedying heavy metal polluted mining soil, which includes: using fish-scale pits to prepare the land; separately stacking the soil of different stratums in excavation; separating the surface soil and the undersoil; allowing unpolluted soil to stand by; filling the finished tree pits with the surface soil obtained in excavating the tree pits; well mixing the tree pit filling with the unpolluted soil excavated on the spot or borrowed soil, and filling the mixture into the tree pits; and finally filling with the undersoil or borrowed soil. On the basis of the prior art, ingredients of the filling are changed, so that planted plants are easy to survive and can successfully live through the transitional period, and the basis for remediation later is laid.

Description

technical field [0001] The invention relates to a method for repairing heavy metal polluted mining area soil. Background technique [0002] At present, the green restoration of soil in heavy metal-contaminated mining areas is mainly to plant heavy metal-enriched plants in heavy metal-contaminated mining areas, and to achieve the purpose of restoration through the absorption of enriched plants. The reason is that plants need a buffer period after they are transplanted to polluted areas. If they are directly transplanted to heavily polluted areas, even high-enrichment plants will still not be able to adapt if they do not get a buffer opportunity. new environment. Contents of the invention [0003] The invention provides a method for repairing heavy metal polluted mining area soil aiming at the existing deficiencies. [0004] The present invention achieves the above objects through the following methods. [0005] A method for repairing heavy metal-contaminated mining area ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
Inventor 陈勇明
Owner CHANGSHU JIASHENG AGRI SCI & TECH DEV
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