ZHANGFei-yu,LIAn-jie,WANGLi-li,et al.Effects of Biological Nitrogen Removal Process on the Removal and Transformation of Emerging Contaminants from Wastewater[J].China Water & Wastewater,2023,39(14):1-9.
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Effects of Biological Nitrogen Removal Process on the Removal and Transformation of Emerging Contaminants from Wastewater

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第14期 Page: 1-9 Column: Date of publication: 2023-07-17
Author(s):
ZHANG　Fei-yu1; 2;  LI　An-jie1; 2;  WANG　Li-li1; 2;  LI　Qian1; 2;  GU　Ji-dong3
（1. Key Laboratory of Water and Sediment Sciences， Ministry of Education， School of Environment， Beijing Normal University， Beijing 100875， China； 2. State Key Laboratory of Water Environment Simulation， School of Environment， Beijing Normal University， Beijing 100875， China； 3. Environmental Science and Engineering Research Group， Guangdong Technion?Israel Institute of Technology， Shantou 515063， China）
Keywords:
biological nitrogen removal process;  emerging contaminants;  co?metabolism;  abiotic transformation;  synergism;  toxicity of transformation products
Abstract:
In recent years, the emerging contaminants (ECs) with low level of detection and high level of risk are frequently detected in influent and effluent of wastewater treatment plants (WWTPs). ECs and ammonia nitrogen can be removed simultaneously in biological nitrogen removal process. However, the removal pathways and mechanism are complex and need further study. Also, the toxicity of intermediate products from ECs degradation should be paid more attention. In this background, the key factors of ECs removal in biological nitrogen removal process were analyzed. The role of autotrophic bacteria, heterotrophic bacteria, and nitrogenous compounds on ECs removal was clarified from the perspective of biology and chemistry. In addition, the transformation pathways of ECs and the toxicity of intermediate products were discussed. Furthermore, the feasibility of various biological nitrogen removal processes which are applied for ECs removal was evaluated to provide a reference and guidance for the simultaneous removal of ammonia nitrogen and ECs.
Last Update: 2023-07-17