Soil remediation agent and preparation method thereof

Abstract

The invention discloses a soil remediation agent and a preparation method thereof, and belongs to the field of soil improvement. The soil remediation agent includes rice husk straws, Trifolium repens,biochar, bentonite, zeolite, Gibberella, Bacillus subtilis and potassium fulate. The biochar, zeolite and bentonite in the invention have certain adsorption effects on heavy metal ions, so the concentration of heavy metal ions on the surface of soil is reduced, and the damages of the heavy metal ions to plants are prevented; and the Gibberella and Bacillus subtilis can improve the distribution structure of microorganisms in the soil, so the permeability of soil is improved, metal ions are fixed, and soil hardening is improved. The soil remediation agent can also provide organic matters, enhance the soil aggregate structure and improve the manurial effect of soil in order to achieve rapid and efficient soil remediation.

Description

technical field

[0001] The invention relates to the field of soil improvement, in particular to a soil repair agent and a preparation method thereof. Background technique

[0002] The extensive development of various ore resources and the vigorous development of industry and agriculture have caused damage to the soil to a certain extent, causing changes in the heavy metal content in the soil, organic matter in the soil and microbial populations, affecting the growth of crops, soil The environment has been severely damaged. Soil improvement is also being carried out continuously. At present, soil improvement generally includes soil improvement method, physical method, chemical method, electrothermal method and microbial method. Among them, the chemical method is to use chemical agents to produce chemical reactions. It is the passivation of heavy metal ions in the soil, reducing their activity, reducing the harm to ecology and the environment, and achieving the purpose of pol...

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