Patents Assigned to Columbia Water Holdings, Inc.
  • Method for treatment of a wastewater stream containing dissolved compounds or ions
    Patent number: 11286190
    Abstract: The invention discloses and claims various methods for the treatment of various wastewater streams of varying chemical composition using sonication in combination with a variety of other methods, including nucleation, ozonation, flocculation, clarification, adsorption, polishing, and filtration. The methods disclosed and claimed are useful in the treatment of industrial wastewater, brackish water, seawater, and for the treatment of oil and gas-well water as well as wastewater from hydraulic gas-fracturing processes for the production of oil and natural gas.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: March 29, 2022
    Assignee: Columbia Water Holdings, Inc.
    Inventors: Benjamin Roberts, Lee Shull, Michael P. Mehlhoff
  • Method for treatment of a wastewater stream containing dissolved compounds or ions
    Patent number: 10669179
    Abstract: The invention discloses and claims various methods for the treatment of various wastewater streams of varying chemical composition using sonication in combination with a variety of other methods, including nucleation, ozonation, flocculation, clarification, adsorption, polishing, and filtration. The methods disclosed and claimed are useful in the treatment of industrial wastewater, brackish water, seawater, and for the treatment of oil and gas-well water as well as wastewater from hydraulic gas-fracturing processes for the production of oil and natural gas.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: June 2, 2020
    Assignee: Columbia Water Holdings, Inc.
    Inventors: Benjamin Roberts, Lee Shull, Michael P. Mehlhoff