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Method of decontaminating a contaminated fluid by using photocatalytic particles

  • US 5,294,315 A
  • Filed: 10/09/1992
  • Issued: 03/15/1994
  • Est. Priority Date: 07/24/1986
  • Status: Expired due to Fees
First Claim
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1. A method of decontaminating a contaminated fluid by using photocatalytic particles comprising the steps of:

  • suspending photocatalytic particles in a contaminated fluid to form a slurry;

    illuminating the slurry with light to photocatalytically activate said photocatalytic particles and thereby substantially decontaminate said contaminated fluid;

    filtering the decontaminated fluid and the photocatalytic particles suspended therein in a substantially continuous operation to segregate said decontaminated fluid substantially completely from the photocatalytic particles;

    changing the direction of the fluid which has passed through the filter to cause the fluid to flow back through the filter and dislodge any photocatalytic particles from the filter which have become lodged therein;

    collecting the dislodged photocatalytic particles; and

    collecting the fluid which has passed through the filter.

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