Patents Assigned to El Paso Environmental Systems, Inc.
  • Method and apparatus for recovering liquid and solid constituents of water solutions containing sparingly soluble solids
    Patent number: 4176057
    Abstract: Water, such as the effluent from cooling towers, boilers, waste streams of industrial plants, hydrometallurgical processes or other sources of water solutions containing sparingly soluble solids is efficiently separated into its aqueous and solid constituents by reverse osmosis and chemical treatments effective to achieve a zero discharge of effluent and a minimum volume of sludge or a recovery of valuable solids.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: November 27, 1979
    Assignee: El Paso Environmental Systems, Inc.
    Inventors: Robert T. Wheatley, Louis J. Kosarek