Method for removing solids build-up from cathodes of electrolytic cell

Abstract

Abstract Apparatus and method for removing solids which build up on the cathode of an electrolytic cell, particularly an electrolytic cell used in the treatment of waste water such as sewage or industrial wastes. The cell preferably comprises a metallic hollow tube which may form the cathode, and a lead dioxide-coated anode disposed within, but electrically insulated from, the encircling cathode. The electrolyte flows through the cell in the space between the anode and encircling cathode. In the electrolytic treatment of organic and inorganic waste materials, various chemical deposits, particularly including calcium and magnesium salts of orthophosphate and carbonate as well as calcium and magnesium hydroxide tend to become deposited on the cathode surface and soon prevent proper cell operation. Such deposits are removed periodically by injecting pressurized air into the cell at preselected time intervals. During periods of air injection, a predetermined minimum amount of air is injected dependent upon the rate of liquid flow through the cell.

Inventors

• 👤 Fred D Gibson Jr
• 👤 Raymond C Rhees
• 👤 James I Gilson
• 👤 Bruce B Halker

Bibliographic Details