ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,392, issued on Jan. 27, was assigned to KleanTu LLC (Bridgeville, Pa.).
"Tank configuration with enhanced denitrification" was invented by John R. Smith (Pittsburgh), Andrew C. Middleton (Mount Sidney, Va.), Robin L. Weightman (Murrysville, Pa.), Robert Horger (Harrison City, Pa.), Richard Donahue (Edgartown, Mass.) and Jaw Fu (Murrysville, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An enhanced multiple compartmented (segmented or chambered) supplemental tank system that (i) adds another media to enhance wood chip denitrification, and (ii) includes a component for recycling treated wastewater back to the front end of the system with mainly n...