US Patent Issued to CHONGQING UNIVERSITY on June 23 for "Rainwater bioretention facility for synchronized nitrogen and phosphorus removal in rainfall conditions" (Chinese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,805, issued on June 23, was assigned to CHONGQING UNIVERSITY (Chongqing, China).

"Rainwater bioretention facility for synchronized nitrogen and phosphorus removal in rainfall conditions" was invented by Hongxiang Chai (Chongqing, China), Mengdi Li (Chongqing, China), Haiyuan Ma (Chongqing, China) and Mengchen Du (Chongqing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stormwater bioretention facility, including a pool body. The pool body includes an overflow layer, a cover layer, a filtration layer, an upper drainage layer, a biochar layer, a submerged layer, and a lower drainage layer from top to bottom. An upper drainage pipe is disposed...