Chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses

By using ferromagnetic artificial nodules combined with magnetic separation technology, the problem of the inability to effectively remove heavy metal pollution in the soil in the existing technology is solved, achieving efficient and safe removal of soil pollutants, and reducing treatment costs and time.

CN107803397AInactive Publication Date: 2018-03-16MEIZHOU ZHIFENG AGRI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2017-11-24
Publication Date
2018-03-16
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing soil pollution treatment methods, such as soil turning methods, pollutant stabilization methods, and plant restoration methods, cannot effectively remove heavy metal pollutants from contaminated sites, resulting in the potential threat of pollutants to humans or organisms still existing. , and the processing cost is high or the efficiency is low.

Method used

It uses ferromagnetic artificial nodules, which are mixed with ferromagnetic materials and high specific surface area adsorption materials. Through diffusion and magnetic separation technology, heavy metal pollutants are adsorbed and removed from the soil.

Benefits of technology

It has effectively reduced the heavy metal content of contaminated sites, ensured the safety of the soil, and has higher depollution efficiency and cost-effectiveness than traditional methods.

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Abstract

The invention provides a chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses. In a ferromagnetic artificial nucleus soil restoration method, the ferromagnetic artificial nucleuses are applied to heavy metal-polluted soil; soil above a heavy metal pollution depth is overturned by cultivation equipment to uniformly mix with the ferromagnetic artificial nucleuses; and after heavy metal can be dispersed from the soil to the artificial nucleuses by a period of time, the soil containing the artificial nucleuses is overturned by using the cultivation equipment to increase the change of the artificial nucleuses contacting with other soil. After the soil overturning procedure is repeated by multiple times, the cultivation equipment provided with magnets can be used for separating the ferromagnetic artificial nucleuses, absorbed with the heavy metal, from the polluted soil; and the content of the heavy metal of the polluted soil is reduced due to shifting-out of the ferromagnetic artificial nucleuses, so that the purpose of soil restoration is gradually achieved.
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Citation Information

Patent Citations

  • Heavy metal ion stabilizer for ecological environment and environment restoration method

    CN103555337A

  • Nondestructive restoration method for polluted soil

    CN103962371A

  • Additive applied to polluted soil

    CN104449748A

  • Treatment method of soil including heavy metal

    JP2005270746A

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