ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,353, issued on July 29, was assigned to Arkema France (Puteaux, France).
"Elimination of formaldehyde in wastewater through oxidation treatment" was invented by Michel Fauconet (Saint Avold, France) and Gullu Isik (Saint Avold, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for the treatment of wastewater containing formaldehyde. In particular, the invention relates to a process for the treatment of liquid effluents resulting from the manufacture of acrylic acid or acrolein, which is targeted at removing the formaldehyde present in these effluents. Finally, the invention relates to the use of the pur...