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Method and System for Removing Polychlorinated Biphenyls from Plastics

  • US 20100013116A1
  • Filed: 07/21/2009
  • Published: 01/21/2010
  • Est. Priority Date: 07/21/2008
  • Status: Abandoned Application
First Claim
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1. A method for removing polychlorinated biphenyls (PCBs) from plastic material comprising the steps of:

  • receiving a waste stream comprising plastic material contaminated with PCBs;

    adding the waste stream to a reactor, wherein the pressure within the reactor is maintained at or below 100 millibars;

    establishing a temperature of the reactor above the melting point of the plastic material and the boiling point of the PCBs at the pressure within the reactor to create a molten plastic material;

    agitating the molten plastic material; and

    extruding the molten plastic material following volatilization of at least a fraction of the PCBs from the plastic material.

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