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Method for treating soil heavy metal pollution

A heavy metal and soil technology, applied in the field of soil pollution control, can solve the problems of soil pollution and high risk of soil pollution in agricultural land, and achieve soil restoration, significant technical effects, social and economic benefits, and soil as much as possible

Pending Publication Date: 2019-02-22
王世清
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AI Technical Summary

Problems solved by technology

When the content of the above five elements in the soil is higher than the specified risk screening value, equal to or lower than the specified risk control value, there may be risks of soil pollution such as edible agricultural products not meeting the quality and safety standards; when the above five elements in the soil When the content is higher than the specified risk control value, the risk of soil pollution in agricultural land such as edible agricultural products that do not meet the quality and safety standards is high

Method used

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Embodiment Construction

[0011] The present invention is a treatment method for heavy metal pollution in soil. Earthworms and vermicomposts of Daping No. 2 variety are selected; crop straws, grain and oil product shells, skins, vegetable leftovers, cow dung and other straw waste materials are crushed and mixed with appropriate amount of vermicompost to ferment bacteria Water, made into porous blocks; non-food source plants choose mugwort, ramie, rose, alyssum, dawanhuahua, and a certain number of earthworms are introduced into the soil layer polluted by heavy metals, and the produced The pore block particles are applied to the soil of the same piece of land, and the non-food source plants are planted on the same piece of land singly or mixed, and are managed in the field according to the daily management method.

[0012] In the present invention, the above-mentioned method for controlling soil heavy metal pollution is tested in a field. According to the arrangement of the local government, the farmers...

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Abstract

The invention belongs to the technical field of soil pollution treatment, and provides a method for treating soil heavy metal pollution. The method is mainly characterized in that earthworms, straw wastes, zymophyte master batch and non-food-derived plants are selected, and the compositions are put (or introduced, applied and planted) into the soil polluted by heavy metals; technical measures suchas animal, plant, microbial biological and physical combination are adopted, the multiple measures are combined, and the mutual promotion and synergistic effects are achieved; the soil heavy metal pollution can be more effectively and comprehensively treated, the condition that the soil is polluted by heavy metals can be improved at the same time, the soil can be repaired as much as possible, andthe production capacity is restored; and compared with the prior art, remarkable technical effect and social and economic benefits are realized.

Description

technical field [0001] The invention belongs to the technical field of soil pollution treatment and specifically proposes a treatment method for soil heavy metal pollution. Background technique [0002] Soil heavy metal pollution has become an important environmental problem. Once the land is polluted by heavy metals, there may be risks to the growth of crops, the quality and safety of agricultural products, or the soil ecological environment to a certain extent, and the land will lose its productive capacity. [0003] The main sources of soil heavy metal pollutants are sewage irrigation, industrial waste residue, urban garbage, industrial pollutant stacking and atmospheric deposition. [0004] Traditional soil pollution treatment methods mostly use physical and chemical remediation techniques, which have the disadvantage of incomplete removal of pollutants, which will also lead to secondary pollution and bring a certain degree of environmental and health risks. [0005] Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/10
CPCB09C1/10B09C1/105B09C2101/00
Inventor 王一严玉虎王世清
Owner 王世清
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