Patents by Inventor Darren Lytle

Darren Lytle 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).

  • Nitrogen sparging assisted anoxic biological water treatment system
    Patent number: 11802067
    Abstract: Systems and methods are provided for nitrogen gas sparging assisted biological treatment of water. In one example, a denitrification system may include a media-packed column or bed through which nitrogen gas is sparged to remove dissolved oxygen from water. In some examples, an external carbon source and electron donor may be added to the media-packed column or bed to facilitate biological removal of the nitrate and/or other contaminants from the water. In this way, by relying on the sparged nitrogen gas to remove the dissolved oxygen, less of the external carbon source and electron donor may be employed as compared to denitrification systems not assisted by nitrogen gas sparging.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: October 31, 2023
    Assignee: UNITED STATES GOVERNMENT, AS REPRESENTED BY THE ADMINISTRATOR OF THE U.S. EPA
    Inventors: Asher Keithley, Daniel Williams, Nicholas Dugan, Darren Lytle
  • MICROWAVE DRYING APPARATUS FOR THE MINIMIZATION OF DRINKING WATER PLANT RESIDUALS
    Publication number: 20220250943
    Abstract: A method and apparatus for treating residuals or waste streams from a plant, such as a drinking water treatment plant. The method includes the steps of obtaining plant residuals or waste streams from a water treatment plant and irradiating the plant residuals or waste streams using microwave radiation from a microwave source. The method also includes the step of drying the plant residuals or waste streams to a predetermined moisture, volume, or weight content reduction and disposing of the same.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Applicant: U.S. Environmental Protection Agency
    Inventors: Darren A LYTLE, Mallikarjuna N. Nadagouda
  • Microwave drying apparatus for the minimization of drinking water plant residuals
    Patent number: 11345617
    Abstract: A method and apparatus for treating residuals or waste streams from a plant, such as a drinking water treatment plant. The method includes the steps of obtaining plant residuals or waste streams from a water treatment plant and irradiating the plant residuals or waste streams using microwave radiation from a microwave source. The method also includes the step of drying the plant residuals or waste streams to a predetermined moisture, volume, or weight content reduction and disposing of the same.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: May 31, 2022
    Assignee: U.S. ENVIRONMENTAL PROTECTION AGENCY
    Inventors: Darren A. Lytle, Mallikarjuna N. Nadagouda
  • NITROGEN SPARGING ASSISTED ANOXIC BIOLOGICAL WATER TREATMENT SYSTEM
    Publication number: 20210276909
    Abstract: Systems and methods are provided for nitrogen gas sparging assisted biological treatment of water. In one example, a denitrification system may include a media-packed column or bed through which nitrogen gas is sparged to remove dissolved oxygen from water. In some examples, an external carbon source and electron donor may be added to the media-packed column or bed to facilitate biological removal of the nitrate and/or other contaminants from the water. In this way, by relying on the sparged nitrogen gas to remove the dissolved oxygen, less of the external carbon source and electron donor may be employed as compared to denitrification systems not assisted by nitrogen gas sparging.
    Type: Application
    Filed: March 4, 2021
    Publication date: September 9, 2021
    Inventors: Asher Keithley, Daniel Williams, Nicholas Dugan, Darren Lytle
  • MICROWAVE DRYING APPARATUS FOR THE MINIMIZATION OF DRINKING WATER PLANT RESIDUALS
    Publication number: 20180251384
    Abstract: A method and apparatus for treating residuals or waste streams from a plant, such as a drinking water treatment plant. The method includes the steps of obtaining plant residuals or waste streams from a water treatment plant and irradiating the plant residuals or waste streams using microwave radiation from a microwave source. The method also includes the step of drying the plant residuals or waste streams to a predetermined moisture, volume, or weight content reduction and disposing of the same.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 6, 2018
    Applicant: U.S. Environmental Protection Agency
    Inventors: Darren A. LYTLE, Mallikarjuna N. NADAGOUDA