Electric enhancement of adsorbent flotation separation

  • US 5,480,558 A
  • Filed: 06/06/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 06/06/1994
  • Status: Expired due to Fees
First Claim
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1. A flotation cell for use in a soil washing system, said flotation cell comprising:

  • a tank for receiving a liquid slurry containing liberated contaminants in an emulsion;

    means for injecting gas bubbles into said slurry inside said tank for gathering said contaminants thereto by attachment, with said bubbles and contaminants attached thereto rising by buoyancy to form a froth at the surface of said slurry in said tank;

    an adsorbent electrode assembly disposed in said tank for contacting said froth; and

    a source of electricity having a first pole connected to said adsorbent electrode assembly and a second pole connected to said tank so that said electrode assembly electrically attracts and adsorbs said contaminants in said froth.

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