Method of purifying polluted water

Method of purifying polluted water

  • CN 1,976,876 A
  • Filed: 06/28/2005
  • Published: 06/06/2007
  • Est. Priority Date: 06/28/2004
  • Status: Active Application
First Claim
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1. , a kind of purification contains at least a difficult for biological degradation of first concentration or the method for non-biodegradable organic sewage, in the method sewage is contacted with at least a ozone gas that contains, with the above-mentioned organism of oxidation, it is characterized in that in first treatment step, described sewage being contacted with the above-mentioned ozone gas that contains, the partial organic substances that exists in the above-mentioned sewage of oxidation, and make described organic first concentration reduce to second concentration, described organic second concentration is by using liquid, aqueous dilution behind first time treatment step, is reduced at the most 2/3 of second concentration, preferred 1/2 the 3rd concentration at the most;

  • In second treatment step, contact with the above-mentioned ozone gas that contains by the sewage that will dilute, oxidation another part is present in the above-mentioned organism in the sewage, and described so organic the 3rd concentration is reduced to the 4th concentration.

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