The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2026
Filed:
Jul. 21, 2021
Beijing University of Technology, Beijing, CN;
Yongzhen Peng, Beijing, CN;
Yueru Zhao, Beijing, CN;
Qiong Zhang, Beijing, CN;
Xiyao Li, Beijing, CN;
Abstract
A biological treatment of sewage device and method for realizing advanced nitrogen removal of domestic sewage by half partical nitrification-anammox coupled with sulfur autotrophic denitrification. The device includes a raw water tank, a half partical nitrification reactor, a regulating water tank and an anammox coupled denitrification reactor. The domestic sewage enters the half partical nitrification reactor, a mass concentration ratio of NO—N to NH—N in effluent water is 1-1.32 through real-time control, and then the effluent water enters the intermediate water tank. After it enters the upflow anammox coupled with autotrophic denitrification granular sludge reactor, the synergistic reaction of anammox and sulfur autotrophic denitrification in the reactor achieves the nitrogen removal. The device and the method improve denitrification efficiency by making full use of the synergistic effect between microorganisms, thereby realizing high-efficiency and energy-saving advanced nitrogen removal of municipal sewage.