ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,414, issued on Sept. 9, was assigned to Xi'an Boiler & Environmental Protection Engineering Co. Ltd. (Xi'an, China).
"Method for zero discharge treatment of desulfurization wastewater suitable for multiple working conditions" was invented by Fusheng Yu (Xi'an, China), Huijie Dan (Xi'an, China), Guoping Niu (Xi'an, China), Yongjun Niu (Xi'an, China), Ming Lei (Xi'an, China), Dingbang Wang (Xi'an, China), Haoran Guo (Xi'an, China), Shaoliang Wang (Xi'an, China) and Zhenjing Shi (Xi'an, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A desulfurization wastewater zero discharge treatment method and system suitable for multiple working conditions. ...