ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,799, issued on Aug. 25, was assigned to SUEZ INTERNATIONAL (Paris la Defense, France).
"Method for treating a wastewater effluent in a sequencing batch reactor (SBR) having a constant level and controlled recovery" was invented by Francoise Petitpain Perrin (Paris) and Alexis Daunay (Paris).
According to the abstract* released by the U.S. Patent & Trademark Office: "An installation for treating a wastewater effluent in a constant-level sequencing batch reactor (SBR), the SBR includes a chamber that is able to contain a mixture of wastewater and sludge comprising different levels, each level being defined by a concentration and/or a density of sludge, a sludge bed situated at the ...