ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,988, issued on Oct. 7.
"Biofilm reactor for treating wastewater" was invented by Tommy Gig Drewery (Longview, Texas) and Trina Vern Drewery (Longview, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wastewater treatment apparatus has a tank with an access opening, at least one fixed film media pod positioned in the interior of the tank, a diffuser positioned in the interior of the tank, and an air pump connected to the diffuser. The fixed film media pod is formed of a polymeric material and has openings framed by the polymeric material. The diffuser is adapted to aerate liquid in the interior of the tank. The media pod has a tubular structure ...