ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,379, issued on Dec. 23, was assigned to Evoqua Water Technologies LLC (Pittsburgh).

"Electrochemically activated persulfate for advanced oxidation processes" was invented by Yang Chen (Lowell, Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Water treatment systems are disclosed. The system includes an electrochemical cell having an inlet and an outlet, a cathode comprising a catalytic material for electrochemical generation of persulfate free radicals, and an anode, a source of a persulfate positioned upstream of the electrochemical cell, first contaminant concentration sensor positioned upstream of the electrochemical cell, and a controlle...