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System for pollution suppression

  • US 4,204,955 A
  • Filed: 04/25/1978
  • Issued: 05/27/1980
  • Est. Priority Date: 09/24/1975
  • Status: Expired due to Term
First Claim
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1. A process for producing, injecting, and dispersing an ozonated oxygen containing gas into a fluid, comprising the steps of:

  • adding a feed gas selected from the class consisting of air, oxygen-enriched air, and oxygen, to an ozone generator at a reduced feed gas flow rate compared to an ozonator feed gas rate corresponding to a maximum ozone production rate, said reduced feed gas flow rate being associated with reduced efficiency of ozone production as measured by the criteria of pounds of ozone produced per kilowatt hour of ozonator energy expended, the concentration of produced ozone in said feed gas being relatively increased to levels greater than the concentration typical of either said ozone production at maximum rates or at maximum ozone production rate per unit of ozonator energy expended;

    creating a downstream vena contracta portion by a constriction in a conduit, said constriction being a flat plate orifice, said flat plate orifice having a diameter ranging from about 0.7 to about 0.9 conduit diameters, said flat plate orifice also creating said vena contracta portion from about 0.25 to about 0.5 conduit diameters downstream from said orifice;

    injecting said ozonated feed gas into said conduit in said vena contracta portion; and

    injecting said ozonated feed gas at a flow rate such that the concentration of said ozone in said fluid is at least 0.5 parts per million.

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