公开(公告)号：US20250136486A1

公开(公告)日：2025-05-01

申请号：US17631420

申请日：2021-07-21

Applicant: Beijing University of Technology

Inventor： Yongzhen Peng ,  Yueru Zhao ,  Qiong Zhang ,  Xiyao Li

IPC: C02F3/30 ,  C02F3/34 ,  C02F101/16

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 NO2−—N to NH4+—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.