Patents Represented by Attorney Ruth S. Tong

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  • Process for the treatment of waste water from a fiberglass manufacturing process
    Patent number: 3966600
    Abstract: A process to reduce the chemical oxygen demand and total solids content of waste water from a fiberglass manufacturing process comprises acidifying the waste water to a pH of from about 2.5 to about 5.5 by the addition of a non-toxic inorganic acid; neutralizing the acidified water to a pH of from about 7 to about 9 by the addition of a non-toxic inorganic base; adding a flocculating agent to the treated water; and separating the suspended solid material from the treated water.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: June 29, 1976
    Assignee: Amchem Products, Inc.
    Inventors: Thomas N. Crowley, David M. Urbanski