Shandong Jianzhu University

Xiaoxiang Cheng

Kai Wang

Daoji Wu

Congwei Luo

Fengxun Tan

Hongye Li

Yu Tian

An anaerobic-AO-SACR combined advanced nitrogen removal system for high ammonia-nitrogen wastewater, in which high ammonia-nitrogen wastewater first enters an anaerobic reactor to remove most of organic matters from the wastewater, effluent water enters an AO reactor for nitrogen removal by pre-denitrification in an anoxic zone and for removal of the remaining organic matters and nitrification of ammonia nitrogen in an aerobic zone, and then the effluent water enters an intermediate pool. Meanwhile, under the control of a water quality testing device and a PLC controller, a part of raw water is introduced into the intermediate pool to adjust the carbon nitrogen ratio of the wastewater. Then, the effluent water enters an SACR reactor, and the wastewater undergoes pre-denitrification-nitrification-endogenous denitrification precisely by using the characteristics of denitrifying bacteria and through adjustment and control of PH/DO/ORP testers and the PLC controller on the SACR reactor so as to realize advanced nitrogen removal.

Growing community of inventors

Shandong, China

Xiaoxiang Cheng