Patents by Inventor Donna L. Barker

Donna L. Barker 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 and system for extraction of chemicals from aquifer remediation effluent water
    Patent number: 6511601
    Abstract: A method and system for extraction of chemicals from an groundwater remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating groundwater contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: January 28, 2003
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: Ryan D. McMurtrey, Daniel M. Ginosar, Kenneth S. Moor, G. Michael Shook, Donna L. Barker
  • Apparatus and method for extraction of chemicals from aquifer remediation effluent water
    Patent number: 6402952
    Abstract: An apparatus and method for extraction of chemicals from an aquifer remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating aquifers contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: June 11, 2002
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: Ryan D. McMurtrey, Daniel M. Ginosar, Kenneth S. Moor, G. Michael Shook, John M. Moses, Donna L. Barker
  • Method and system for extraction of chemicals from aquifer remediation effluent water
    Publication number: 20020011442
    Abstract: A method and system for extraction of chemicals from an groundwater remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating groundwater contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.
    Type: Application
    Filed: March 29, 2001
    Publication date: January 31, 2002
    Inventors: Ryan D. McMurtrey, Daniel M. Ginosar, Kenneth S. Moor, G. Michael Shook, Donna L. Barker
  • Apparatus and method for extraction of chemicals from aquifer remediation effluent water
    Publication number: 20020008070
    Abstract: An apparatus and method for extraction of chemicals from an aquifer remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating aquifers contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.
    Type: Application
    Filed: March 29, 2001
    Publication date: January 24, 2002
    Inventors: Ryan D. McMurtrey, Daniel M. Ginosar, Kenneth S. Moor, G. Michael Shook, John M. Moses, Donna L. Barker