Patents by Inventor Dong Hyun Seok

Dong Hyun Seok has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of restoring arsenic-contaminated soil using alkaline-ultrasonic washing and magnetic separation
    Patent number: 10046333
    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.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: August 14, 2018
    Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)
    Inventors: Jae Gon Kim, Chul Min Chon, In Hyun Nam, Jung Hwa Lee, Yong Chan Cho, Dong Hyun Seok
  • METHOD OF RESTORING ARSENIC-CONTAMINATED SOIL USING ALKALINE-ULTRASONIC WASHING AND MAGNETIC SEPARATION
    Publication number: 20170100723
    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.
    Type: Application
    Filed: January 12, 2016
    Publication date: April 13, 2017
    Inventors: Jae Gon Kim, Chul Min Chon, In Hyun Nam, Jung Hwa Lee, Yong Chan Cho, Dong Hyun Seok