The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Jan. 12, 2016
Applicant:
Korea Institute of Geoscience and Mineral Resources (Kigam), Daejeon, KR;
Inventors:
Jae Gon Kim, Daejeon, KR;
Chul Min Chon, Daejeon, KR;
In Hyun Nam, Daejeon, KR;
Jung Hwa Lee, Daejeon, KR;
Yong Chan Cho, Daejeon, KR;
Dong Hyun Seok, Daegu, KR;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B03C 1/005 (2006.01); B03C 1/28 (2006.01); B03C 1/30 (2006.01); B09C 1/02 (2006.01); B09C 1/06 (2006.01); B09C 1/08 (2006.01); B01D 43/00 (2006.01); B03B 7/00 (2006.01);
U.S. Cl.
CPC ...
B03C 1/005 (2013.01); B01D 43/00 (2013.01); B03B 7/00 (2013.01); B03C 1/28 (2013.01); B03C 1/30 (2013.01); B09C 1/02 (2013.01); B09C 1/06 (2013.01); B09C 1/08 (2013.01); B03C 2201/18 (2013.01);
Abstract
Provided is a method of restoring arsenic-contaminated soil. In the present invention, arsenic may be easily separated from soil particles by washing the arsenic-contaminated soil by using a basic solution and simultaneously irradiating the soil with ultrasonic waves. Also, since iron oxide and manganese oxide are exposed to the basic solution by dissolving a portion of the surface of a silicate mineral using the basic solution, a residual form of arsenic may be removed.