Electrolytic wastewater treatment method and apparatus
OwnerClyde Kuen-Hua Hu, Paul Pei-Yung Hu +1inventors
InventorsClyde Kuen-Hua Hu, Paul Pei-Yung Hu, Patrick Pei-Chih Hu
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Abstract
A method and apparatus for purifying aqueous effluent streams to reduce chemical oxygen demand thereof, where the method comprises direct oxidation of water-soluble organic material in an electrochemical cell that incorporates stainless steel electrodes, whose stability and lifetime are enhanced by inclusion of circulating metal chips.
Claims14
An electrolytic oxidation process for purifying wastewater by oxidation of organic and oxidizable inorganic substances contained therein, said process comprising:
- flowing the wastewater into an electrolytic oxidation cell, where the cell comprises a stainless steel anode and cathode and contains iron chips, said chips being in electrical contact with the anode and prevented from making electrical contact with the cathode by a non-electrically-conductive, liquid-permeable barrier;
- applying a voltage across the electrodes to energize the electrolytic oxidation cell and effect electrolytic oxidation of organic and oxidizable inorganic substances in the wastewater;
- and
- discharging from the electrolytic oxidation cell a treated wastewater having a reduced COD content.
A method of oxidation of organic and oxidizable inorganic substances in wastewater, comprising:
- flowing the wastewater into an electrolytic oxidation cell, wherein the cell comprises an anode and a cathode and contains iron chips, said chips being in electric contact with the anode and prevented from making electrical contact with the cathode by a non-electrically-conductive, liquid-permeable barrier;
- applying a voltage across the electrodes to energize the electrolytic oxidation cell and effect oxidation of organic and oxidizable inorganic substance in the wastewater;
- and
- discharging from the electrolytic oxidation cell a treated waste water.
Dependencies are inferred from the claim text.