Patents Assigned to Safe-Waste Systems, Inc.
  • Composition to encapsulate chromium, arsenic and other toxic metals in wastes
    Patent number: 5130051
    Abstract: A composition for treating toxic metals in solid waste, sludge or slurry is provided. The composition includes a reducing agent such as ferrous sulfate or sodium sulfite and a fixative containing solid calcium oxide or solid magnesium oxide. The composition may also include an acid such as sulfuric acid.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: July 14, 1992
    Assignee: Safe-Waste Systems, Inc.
    Inventor: Charles D. Falk