US Patent Issued to Evoqua Water Technologies on Jan. 27 for "Sludge withdrawal mechanism for wasting and returning settled sludge from secondary clarifier with granular sludge" (Wisconsin Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,609, issued on Jan. 27, was assigned to Evoqua Water Technologies LLC (Pittsburgh).

"Sludge withdrawal mechanism for wasting and returning settled sludge from secondary clarifier with granular sludge" was invented by Donald J. Thiel (Waukesha, Wis.), Jeffrey P. Germait (West Allis, Wis.), Govardhan R. Katta (Hartland, Wis.) and Allen Lepak (Mukwonago, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for wasting flocculant sludge from a clarifier is provided including a wasting pipe fluidly connectable to a waste conduit, a manifold fluidly connectable to the wasting pipe, an upper header for collecting the flocculant sludge fluidly c...