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US 4,048,032 AGranted
Electrolytic purification of aqueous liquids in the presence of silver ions
AssigneeSachs-Systemtechnik GmbH
InventorVolker Eibl
Life of this patent
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Abstract
Silver ions are used more economically in the electrolytic purification of water by anodic oxidation when the water is electrolyzed between inert electrodes, and the silver ions are generated by separate silver anodes, than by employing the silver anodes also for generating oxygen.
Claims4
A method of destroying oxidizable contaminants in an aqueous liquid which comprises:
- a. adding silver ions to said liquid in a first zone;
- b. conveying said liquid from said first zone to a second zone;
- c. passing electrolyzing current through said liquid in said second zone in the presence of said silver ions and said contaminants between an anode and a cathode, said anode being in direct contact with said liquid and insoluble in said liquid during said passing of said current;
- d. independently controlling the magnitude of said current and the amount of said silver ions to respective values jointly sufficient to destroy said contaminants in said second zone;
- and
- e. withdrawing said liquid in purified condition from said second zone.
3 more elements
Dependencies are inferred from the claim text.