ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,148, issued on June 24, was assigned to Shanghai Environmental & Sanitary Engineering Design Institute Co. Ltd. (Shanghai) and Ruoshui (Shanghai) Environmental Technology Co. Ltd. (Shanghai).
"Method for deep treatment of household waste leachate by biochemical process" was invented by Shengdong Wang (Shanghai), Jun Tai (Shanghai), Zhenwei Xu (Shanghai), Wentao Luo (Shanghai), Li Wang (Shanghai) and Qiujun Yao (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for deep treatment of household waste leachate by a biochemical process is provided, including: arranging one anoxic tank and two aerobic tanks in series; introducing the househ...