Patents Represented by Attorney Sara Meeks Roberts

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  • Effluent treatment
    Patent number: 5419840
    Abstract: A method of treating chemical liquid effluent to render it more environmentally acceptable, comprising the addition of hydrogen peroxide, or a compound capable of liberating hydrogen peroxide, to the effluent to react with and break down a sequestering agent. The reaction rate may be enhanced by the addition of a small amount of a compound including a transition metal ion, especially the nitrate or sulphate of iron or manganese.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: May 30, 1995
    Assignee: Eastman Kodak Company
    Inventor: John R. Fyson