【摘要】 城镇污水处理厂作为新污染物的重要源和汇，是控制新污染物排放的关键屏障。城镇污水中新污染物赋存特征相关研究发现，不同地区污水中新污染物浓度呈现出明显的地域特征，主要与区域环境条件、服务区域人口密度、污水来源、社会经济状况和产业布局等因素密切相关；解析了新污染物在城镇污水处理厂各单元的迁移转化规律，明晰了污水处理厂新污染物去除受污水处理工艺、新污染物种类等关键因子影响；阐明了目前城镇污水处理厂去除新污染物面临法规标准空白、监测技术短板明显、风险评估体系建设难度大、去除技术时效性低等挑战，并提出了相应防控对策。更多还原

【Abstract】 Urban wastewater treatment plants are important sinks and sources of emerging contaminants, which are a crucial barrier to interrupt its discharge into the aquatic environment. To provide ideas for the prevention and control of emerging contaminants in urban wastewater treatment plants and help achieve the construction of a healthy China, this paper focuses on the categories of emerging contaminants in urban wastewater. We argue that the concentrations of emerging contaminants in wastewater from different districts show significant geographical characteristics, which are closely related to regional environmental conditions, population density, wastewater sources, socio-economic conditions and industrial layout. We analyze the migration and transformation patterns of emerging contaminants in various units of urban wastewater treatment plants. The results indicate that removal of emerging contaminants from wastewater treatment plants is influenced by critical factors including wastewater treatment processes and emerging contaminants categories. We also illustrate that removal of emerging contaminants from urban wastewater treatment plants is currently challenged by the lack of regulations and standards, outdated monitoring technologies, hard-to-construct risk assessment systems, and ineffective removal technologies. We propose appropriate prevention and control strategies to address these challenges.更多还原