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Method of treating (meth)acrylic monomer-containing wastewater

  • US 5,135,663 A
  • Filed: 10/18/1991
  • Issued: 08/04/1992
  • Est. Priority Date: 10/18/1991
  • Status: Expired due to Term
First Claim
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1. A method of treating wastewater comprising an aqueous medium containing (meth)acrylic monomer, comprising:

  • (a) adjusting the pH of the aqueous medium to a value in the range of from about 8 to about 10, by addition of base thereto;

    (b) contacting the aqueous medium with an effective amount of a reducing agent which is polymerizingly effective for the monomer to yield corresponding polymer from the monomer;

    (c) mixing a cationic flocculating agent with the aqueous medium, in sufficient quantity to flocculate the polymer in the aqueous medium; and

    (d) physically separating the polymer-containing aqueous medium and recovering a monomer- and polymer-reduced aqueous medium effluent.

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