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Method and system for photocatalytic decontamination

  • US 5,462,674 A
  • Filed: 03/03/1994
  • Issued: 10/31/1995
  • Est. Priority Date: 03/03/1994
  • Status: Expired due to Term
First Claim
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1. A method for purifying a contaminated fluid, comprising:

  • mixing a contaminated fluid with a photocatalyst to form a slurry;

    passing the slurry through a space irradiated by ultraviolet light to bring about a photocatalytic reaction of the slurry whereby decontaminated effluents are rendered in the slurry;

    segregating the decontaminated effluents from the slurry by filtration through a plurality of ceramic filter elements;

    intermittently removing any collections of photocatalyst in the plural ceramic filter elements by passing a shock wave therethrough; and

    repeating the above steps with a substantially constant charge of photocatalyst.

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