Remediation method of antimony contaminated soil

Abstract

The invention relates to a remediation method of antimony contaminated soil. Firstly, an antimony activating agent is applied to the antimony contaminated soil, hydroponic blending is performed, the soil is kept drowned for 1 to 3 centimeters, pteris multifida poir is planted when plough layers are still wet after balance for 3 to 7 days, warmth, wetness and no continuous exposure are kept in thewhole growing process, an antimony activating agent solution is poured before 10 to 15 days of harvest, after plants grow vigorously for 10 to 15 days, the overground parts of plants are moved away, and innocent treatment is performed; whether the content of heavy metal antimony in the soil after remediation reaches the standard is detected, and if the content of the heavy metal antimony in the soil after remediation does not reach the standard, the next batch of pteris multifida poir is planted by adopting the method until the content of the heavy metal antimony reaches the standard. The activating agent is added to the soil, so that the transfer and accumulation of the antimony in the soil to the overground parts of the plants can be effectively promoted, the soil environment and the conditions required by plant growth can be improved, and the purpose of remediation of the antimony contaminated soil by the plants is realized; the remediation method has the advantages of good remediation effect, low remediation cost, small environmental risk and the like.

Description

technical field [0001] The invention relates to a method for remediating antimony-contaminated soil, in particular to a method for jointly remediating antimony-contaminated soil with an activator and enrichment plants, and belongs to the field of remediation of heavy metal-contaminated soil. Background technique [0002] Antimony is a polluting element. High levels of antimony in the environment will inevitably affect the normal growth and yield of local plants, especially crops. It will also lead to excessive antimony content in agricultural products, and then accumulate in the human body through the food chain. Antimony has been proven to be a toxic carcinogenic element. In the human body, it can interfere with the metabolism of proteins and sugars in the body by combining with sulfhydryl groups. It can also damage the liver, heart and nervous system, and stimulate mucous membranes. A survey of 609 workers in the antimony mining area of ​​Xikuangshan, Hunan found that 20.0...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a method for jointly remediating antimony-contaminated soil with an activator and enrichment plants, fully exerting the effect of the activator on activating soil antimony, and aiming at improving the bioavailability of antimony to enrichment plants and other problems, and then improve the enrichment effect of plants. It is a method of repairing heavy metal antimony in soil with low repair cost, good repair effect and no secondary pollution.

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