Patents Assigned to Geo. W. Bollman & Co., Inc.
  • Process for treating wool scouring wastes
    Patent number: 4059516
    Abstract: An improved process for treating wool scouring wastes liquors in which the waste liquors are first cooled before acid and collodial bentonite are added; then the flocculated liquor is reheated to a temperature in the range of 130.degree. to 150.degree. to separate the waste liquor into a supernatent liquor and a settled drainable sludge and finally dewatering the settled sludge by centrifugal separation.
    Type: Grant
    Filed: May 19, 1976
    Date of Patent: November 22, 1977
    Assignee: Geo. W. Bollman & Co., Inc.
    Inventor: Willis A. Heisey