ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,395, issued on Feb. 24, was assigned to Pewa Systems B.V. (Leeuwarden, Netherlands).

"Wastewater ozone treatment" was invented by Lambertus Ludovicus Matheus Joseph Paping (Hulst, Netherlands) and Hendrik Rens (Almere, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "In accordance with the present invention there is provided a method for treating a wastewater stream, comprising the steps of:-introducing O3 in the wastewater stream, thereby dissolving at least part of the O3 in the wastewater stream; -optionally irradiating the wastewater stream with ionizing radiation; and-optionally contacting the wastewater stream with a heterogeneous ca...