Patents by Inventor Donjin JU

Donjin JU 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).

  • Nitrite-oxidizing bacteria activity inhibitor and method
    Patent number: 11685677
    Abstract: A device and method for shortcut nitrogen removal and nitrite-oxidizing bacteria activity inhibition are disclosed herein. An embodiment of the present invention provides a hollow fiber diffuser comprising: a plurality of hollow fibers on which bacteria can be attached and grow; and an inlet capable of supplying gas to one sides of the plurality of hollow fibers, wherein the gas includes oxygen and carbon dioxide, nitrite can be produced by the oxygen, and the concentration of oxygen in the gas is adjusted by the oxygen and the carbon dioxide.
    Type: Grant
    Filed: May 29, 2021
    Date of Patent: June 27, 2023
    Inventors: Daehwan Rhu, Minki Jung, Donjin Ju, Honkeun Park, Dongwoo Kim, Hojae Hwang
  • NITRITE-OXIDIZING BACTERIA ACTIVITY INHIBITOR AND METHOD
    Publication number: 20210292200
    Abstract: A device and method for shortcut nitrogen removal and nitrite-oxidizing bacteria activity inhibition are disclosed herein. An embodiment of the present invention provides a hollow fiber diffuser comprising: a plurality of hollow fibers on which bacteria can be attached and grow; and an inlet capable of supplying gas to one sides of the plurality of hollow fibers, wherein the gas includes oxygen and carbon dioxide, nitrite can be produced by the oxygen, and the concentration of oxygen in the gas is adjusted by the oxygen and the carbon dioxide.
    Type: Application
    Filed: May 29, 2021
    Publication date: September 23, 2021
    Inventors: Daehwan RHU, Minki JUNG, Donjin JU, Honkeun PARK, Dongwoo KIM, Hojae HWANG
  • DEVICE AND METHOD FOR SHORTCUT NITROGEN REMOVAL AND NITRITE-OXIDIZING BACTERIA ACTIVITY INHIBITION
    Publication number: 20200231478
    Abstract: A device and method for shortcut nitrogen removal and nitrite-oxidizing bacteria activity inhibition are disclosed herein. An embodiment of the present invention provides a yarn fiber diffuser comprising: a plurality of yarn fibers on which bacteria can be attached and grow; and an inlet capable of supplying gas to one sides of the plurality of yarn fibers, wherein the gas includes oxygen and carbon dioxide, nitrite can be produced by the oxygen, and the concentration of oxygen in the gas is adjusted by the oxygen and the carbon dioxide.
    Type: Application
    Filed: July 24, 2018
    Publication date: July 23, 2020
    Inventors: Daehwan RHU, Minki JUNG, Donjin JU, Honkeun PARK, Dongwood KIM, Hojae HWANG