Method for removing oxidizable organic compounds from an aqueous solution
First Claim
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1. A method for removing oxidizable organic compounds from an aqueous solution comprising:
- a) introducing an aqueous solution containing oxidizable organic compounds into an anodic chamber of a solid polymer electrolyte electrolysis cell said cell having an anode, a cathode, and a cathode chamber wherein a metal catalyst is positioned on the surface of the anode;
b) applying an absorption potential to the anode of the electrolysis cell sufficient to cause the oxidizable organic compounds to absorb onto the surface of the anode;
c) applying an oxidation potential to the anode sufficient to oxidize said absorbed oxidizable organic compounds and thereby produce carbon dioxide and hydrogen gas and forming a metal oxide layer on the anode catalyst;
d) applying a regenerating potential to the anode sufficient to reduce the metal oxide layer formed on the anode catalyst to the non-oxidized metal catalyst state.
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Abstract
A method for removing oxidizable organic compounds from an aqueous solution is disclosed which utilizes an electrolysis cell having a solid polymer electrolyte. The organic compounds are introduced into the anode chamber and a series of potentials are applied to the anode which potentials cause the organic compounds to absorb onto the cathode catalyst, oxidize the organic compounds and then regenerate or de-foul the catalyst.
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14 Claims
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1. A method for removing oxidizable organic compounds from an aqueous solution comprising:
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a) introducing an aqueous solution containing oxidizable organic compounds into an anodic chamber of a solid polymer electrolyte electrolysis cell said cell having an anode, a cathode, and a cathode chamber wherein a metal catalyst is positioned on the surface of the anode; b) applying an absorption potential to the anode of the electrolysis cell sufficient to cause the oxidizable organic compounds to absorb onto the surface of the anode; c) applying an oxidation potential to the anode sufficient to oxidize said absorbed oxidizable organic compounds and thereby produce carbon dioxide and hydrogen gas and forming a metal oxide layer on the anode catalyst; d) applying a regenerating potential to the anode sufficient to reduce the metal oxide layer formed on the anode catalyst to the non-oxidized metal catalyst state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification