ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,697, issued on Aug. 12, was assigned to Sustainable Water Infrastructure Group LLC (Seattle).
"Phosphorus reduction system" was invented by William Lucas (Malvern, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An improved bioretention system and method combines Water Treatment Residuals with biochar, to provide a synergistic phosphorus retention effect beyond what could be achieved with the WTRs or biochar alone. WTRs are commonly used in drinking water treatment plants and can include the material both in its fresh or aged form. Biochar is formed by the pyrolysis of organic material. Water can be directed to flow through a P retention media of...