Partial anammox achieved in full scale biofilm process for typical domestic wastewater treatment  

作　　者：Feng Hou Ting Zhang Yongzhen Peng Xiaoxin Cao Hongtao Pang Yanqing Shao Xianchun Lu Ju Yuan Xi Chen Jin Zhang 

机构地区：[1]China Water Environment Group Co.Ltd.,Beijing 101101,China [2]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology,Beijing 100124,China [3]Department of Energy and Environmental Engineering,Beijing University of Technology,Beijing 100124,China [4]Department of Civil and Environmental Engineering and Andlinger Center for Energy and the Environment,Princeton University,Princeton,NJ 08544,USA

出　　处：《Frontiers of Environmental Science & Engineering》2022年第3期73-79,共7页环境科学与工程前沿（英文）

基　　金：supported by The Major Science and Technology Program for Water Pollution Control and Treatment(Ministry of Ecology and Environment,China)(No.2017ZX07103-003)and seed fund for Beijing Young Engineering,China.

摘　　要：The slow initiation of anammox for treating typical domestic wastewater and the relatively high footprint of wastewater treatment infrastructures are major concerns for practical wastewater treatment systems.Herein,a 300 m^(3)/d hybrid biofilm reactor(HBR)process was developed and operated with a short hydraulic retention time(HRT)of 8 h.The analysis of the bacterial community demonstrated that anammox were enriched in the anoxic zone of the HBR process.The percentage abundance of Candidatus Brocadia in the total bacterial community of the anoxic zone increased from 0 at Day 1 to 0.33%at Day 130 and then to 2.89%at Day 213.Based upon the activity of anammox bacteria,the removal of ammonia nitrogen(NH_(4)^(+)-N)in the anoxic zone was approximately 15%.This showed that the nitrogen transformation pathway was enhanced in the HBR system through partial anammox process in the anoxic zone.The final effluent contained 12 mg/L chemical oxygen demand(COD),0.662 mg/L NH_(4)^(+)-N,7.2 mg/L total nitrogen(TN),and 6 mg/L SS,indicating the effectiveness of the HBR process for treating real domestic wastewater.

关 键 词：Full scale ANAMMOX Domestic wastewater BIOFILM Candidatus Brocadia 

分 类 号：X703[环境科学与工程—环境工程]