Patents by Inventor Dong-Won KI

Dong-Won KI 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).

  • River water purification apparatus and method using treatment soil layer and permeable filtering medium layer
    Patent number: 8721886
    Abstract: Provided are an apparatus and a method for river water purification using a treatment soil layer and a permeable filtering medium layer. The river water purification apparatus includes a treatment soil layer and a permeable filtering medium layer which are sequentially and alternately stacked. The treatment soil layer includes a plurality of unit soil layers which are arranged at intervals. A reservoir part which stores a predetermined amount of river water and supplies the river water to an inside of the unit soil layer is provided in an upper end part of the unit soil layer. The permeable filtering medium layer has a higher hydraulic conductivity than that of the treatment soil layer. The river water purification apparatus increases a treatment flux of river water regardless of a coefficient of water permeability of soil and effectively removes nitrogen, phosphorus and nutrient salts by stably forming an anaerobic condition.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: May 13, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyu Hong Ahn, Kyung Guen Song, Kang Woo Cho, Dong-Won Ki, Jin Woo Cho, Se Yeon Won, Hae Seok Oh, Ki Pal Kim
  • RIVER WATER PURIFICATION APPARATUS AND METHOD USING TREATMENT SOIL LAYER AND PERMEABLE FILTERING MEDIUM LAYER
    Publication number: 20110100905
    Abstract: Provided are an apparatus and a method for river water purification using a treatment soil layer and a permeable filtering medium layer. The river water purification apparatus includes a treatment soil layer and a permeable filtering medium layer which are sequentially and alternately stacked. The treatment soil layer includes a plurality of unit soil layers which are arranged at intervals. A reservoir part which stores a predetermined amount of river water and supplies the river water to an inside of the unit soil layer is provided in an upper end part of the unit soil layer. The permeable filtering medium layer has a higher hydraulic conductivity than that of the treatment soil layer. The river water purification apparatus increases a treatment flux of river water regardless of a coefficient of water permeability of soil and effectively removes nitrogen, phosphorus and nutrient salts by stably forming an anaerobic condition.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 5, 2011
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyu Hong AHN, Kyung Guen SONG, Kang Woo CHO, Dong-Won KI, Jin Woo CHO, Se Yeon WON, Hae Seok OH, Ki Pal KIM