Patents Assigned to Cooper Environmental Services
  • Apparatus and methods for removing mercury from fluid streams
    Patent number: 6872370
    Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the polyethersulfone surface by immersing the polyethersulfone substrate in an iodine/ethanol solution, then removing the substrate from the iodine/ethanol solution and rinsing in ethanol.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 29, 2005
    Assignee: Cooper Environmental Services
    Inventors: John Arthur Cooper, Sarah Catherine Fry, Bruce Edward Johnsen
  • Apparatus and methods for removing mercury from fluid streams
    Patent number: 6770250
    Abstract: An apparatus and method for removing mercury, and in particular elemental mercury, from a fluid stream by exposing the fluid stream to a polyethersulfone or filter-coated with anion exchange resin, or anion exchange resin-coated surface onto which has been loaded elemental iodine. Elemental iodine is loaded onto the PES or anion exchange resin-coated surface by immersing the PES or anion exchange resin-coated substrate in an iodine/pentane solution, then removing the substrate from the iodine/pentane solution and rinsing in pentane.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: August 3, 2004
    Assignee: Cooper Environmental Services
    Inventors: John Arthur Cooper, Sarah Catherine Fry, Bruce Edward Johnsen