Patents Assigned to BQE WATER INC.
  • Removal of dissolved selenium from aqueous solutions
    Patent number: 9963360
    Abstract: Processes for treating aqueous solutions to remove dissolved selenium species, for example in the presence of an excess of sulphate anions, which include the use of strongly basic anion exchange resins, or co-precipitation and adsorption of the selenate (and selenite) with mixed ferrous and ferric iron, or combinations thereof. Co-precipitation and adsorption of selenate may take place in an electrolytic cell in the presence of ferrous and/or ferric iron.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: May 8, 2018
    Assignee: BQE WATER INC.
    Inventors: David Kratochvil, Farzad Mohammadi, Patrick Littlejohn, David Sanguinetti