公开(公告)号：US20170100723A1

公开(公告)日：2017-04-13

申请号：US14993207

申请日：2016-01-12

Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)

Inventor： Jae Gon Kim ,  Chul Min Chon ,  In Hyun Nam ,  Jung Hwa Lee ,  Yong Chan Cho ,  Dong Hyun Seok

IPC: B03C1/005 ,  B01D43/00 ,  B03B7/00 ,  B03C1/28

CPC classification number: B03C1/005 ,  B01D43/00 ,  B03B7/00 ,  B03C1/28 ,  B03C1/30 ,  B03C2201/18 ,  B09C1/02 ,  B09C1/06 ,  B09C1/08

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.

公开(公告)号：US10046333B2

公开(公告)日：2018-08-14

申请号：US14993207

申请日：2016-01-12

Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)

Inventor： Jae Gon Kim ,  Chul Min Chon ,  In Hyun Nam ,  Jung Hwa Lee ,  Yong Chan Cho ,  Dong Hyun Seok

IPC: B03C1/005 ,  B03C1/28 ,  B03C1/30 ,  B09C1/02 ,  B09C1/06 ,  B09C1/08 ,  B01D43/00 ,  B03B7/00

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.