HEAVY METAL SEPARATION SYSTEM

Title:

HEAVY METAL SEPARATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2017/094448

Kind Code:

A1

Abstract:

[Problem] To provide a heavy metal separation system which, at low cost, uses magnetic powder to efficiently separate and recover heavy metals from objects being treated. [Solution] In these heavy metal separation systems 100, 200, heavy metal components contained in objects being treated are adsorbed onto magnetic powder, and the heavy metal components are transferred to an acid bath 40 together with the magnetic powder by a magnet part 60. The state of adsorption between the magnetic powder and heavy metal components is undone by an acidic solution in the acid bath 40, and the magnetic powder is discharged to a magnetic powder recovery unit 70. In the magnetic powder recovery unit 70, the heavy metal components and the magnetic powder are separated. Through the functional operation thereof, heavy metal components can be efficiently separated and recovered at low cost from objects being treated, such as incineration ash.

Inventors:

TAKEUCHI CHIHARU (JP)
MARUOKA MITSUO (JP)
NEGISHI SHIGERU (JP)
YUASA KAZUO (JP)
FUNATSU TAKASHI (JP)

Application Number:

PCT/JP2016/082945

Publication Date:

June 08, 2017

Filing Date:

November 07, 2016

Export Citation:

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Assignee:

TAKEUCHI CHIHARU (JP)
MARUOKA MITSUO (JP)
NEGISHI SHIGERU (JP)
YUASA KAZUO (JP)
FUNATSU TAKASHI (JP)

International Classes:

B03C1/28; B01F27/73; B03C1/00; B03C1/01; B09B3/00; C02F1/62; C02F11/12

Domestic Patent References:

WO2004078356A1

2004-09-16

Foreign References:

JPS5120468A	1976-02-18
JPH0871597A	1996-03-19
JP2012232253A	2012-11-29
JP2013184099A	2013-09-19
JP2014018751A	2014-02-03