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    • 7. 发明专利
    • Method for treating heavy metal-contaminated soil, and system for treating heavy metal-contaminated soil
    • 处理重金属污染土壤的方法和处理重金属污染土壤的系统
    • JP2011056482A
    • 2011-03-24
    • JP2009212337
    • 2009-09-14
    • Kajima CorpMs-Engineering Co Ltd株式会社Msエンジニアリング鹿島建設株式会社
    • ITO KEIJIROKAWABATA JUNICHISATO SUSUMUNIKI TAKEFUMIFUKUNISHI TATSUONODA YASUHIRO
    • B09C1/00B03C1/00B03C1/16
    • Y02P70/171
    • PROBLEM TO BE SOLVED: To provide a method for treating heavy metal-contaminated soil and a system for treating heavy metal-contaminated soil capable of effectively cleaning the soil contaminated with a heavy metal. SOLUTION: In the system 1 for treating the heavy metal contaminated soil, slurry is produced by mixing water with the contaminated soil containing the heavy metal in a slurry-producing device 2, and the slurry is mixed with iron powder in a reaction vessel 3. The iron powder has characteristics to absorb and retain a heavy metal. Hence, the heavy metal dissolved out in water can be attached to the iron powder by mixing the slurry of the contaminated soil with the iron powder. Recovery of the iron powder attached with the heavy metal by a magnetism separation device 4 thereafter leads to separation of the heavy metal contained in the contaminated soil from the soil to allow the soil contaminated with the heavy metal to be effectively cleaned. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种处理重金属污染土壤的方法和一种处理重金属污染土壤的系统,能够有效清洁被重金属污染的土壤。 解决方案:在用于处理重金属污染土壤的系统1中,通过在浆料生产装置2中将水与含有重金属的污染土壤混合而产生浆料,并将浆料与铁粉反应 铁粉具有吸收和保留重金属的特性。 因此,通过将污染土壤的浆料与铁粉混合,可以将溶解在水中的重金属附着在铁粉上。 此后,通过磁力分离装置4回收附着有重金属的铁粉,导致污染土壤中含有的重金属与土壤分离,从而有效地清洗被重金属污染的土壤。 版权所有(C)2011,JPO&INPIT