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Method for reduction of cod in water

  • US 4,683,065 A
  • Filed: 06/18/1985
  • Issued: 07/28/1987
  • Est. Priority Date: 06/18/1985
  • Status: Expired due to Fees
First Claim
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1. A method for reducing chemical oxygen demand (COD) levels in water containing chemical contaminants comprising the steps of:

  • (a) adding at least one oxygen source to the water;

    (b) contacting the water with a first catalyst consisting of activated alumina;

    (c) contacting the water from (b) with a catalyst selected from the group consisting of Group VIIIB metals, Group IB metals or mixtures thereof;

    (d) reacting the chemical contaminants entrained in the water with the oxygen source in the presence of the first and second catalysts; and

    , then(e) contacting the water with an adsorptive material to adsorb any chemical contaminants which remain in the water.

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