污水处理厂中微塑料的赋存、迁移及归趋研究进展  

Research progress on the occurrence,migration and fate of microplastics in wastewater treatment plants

作　　者：刘发欣 程文[1] 任杰辉 LIU Faxin;CHENG Wen;REN Jiehui(State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China,Institute of Water Resources and Hydro-Electric Engineering,Xi’an University of Technology,Xi’an Shaanxi 710048)

机构地区：[1]西北旱区生态水利国家重点实验室,西安理工大学水利水电学院,陕西西安710048

出　　处：《环境污染与防治》2022年第6期793-800,共8页Environmental Pollution & Control

摘　　要：污水处理厂被认为是微塑料进入自然环境的一个重要途径,受到越来越多的关注。综合分析国内外39个污水处理厂进出水和污泥中微塑料的赋存类型、形态和丰度,详细比较不同污水处理工艺对微塑料的去除率并进行影响因子识别,总结和分析了污水和污泥中微塑料的迁移和归趋。污水处理厂的进水和出水中主要微塑料形态为纤维微塑料,而且出水中纤维微塑料比例升高;中国污水处理厂进水中微塑料的丰度明显高于欧洲国家,而污泥中微塑料的丰度低于欧洲国家。微塑料的去除主要是吸附、截留、絮凝、过滤、沉淀等物理作用发挥效能。Wastewater treatment plants(WWTPs)were considered to be an important way for microplastics to enter the natural environment and were receiving increasing attention.The occurrence type,morphology and abundance of microplastics in the influent and effluent and sludge of 39 WWTPs at home and abroad were comprehensively analyzed.The removal rates of microplastics by different wastewater treatment processes were compared in detail and the influencing factors were identified.The migration and fate of microplastics in wastewater and sludge were summarized and analyzed.The main types of microplastics in the influent and effluent of WWTPs were fiber microplastics,and the proportion of fiber microplastics in the effluent increased.The abundance of microplastics in the influent of WWTPs in China was significantly higher than that in European countries,while the abundance of microplastics in sludge was significantly lower than that in European countries.The removal of microplastics was mainly due to physical effects such as adsorption,retention,flocculation,filtration and precipitation.

关 键 词：污水处理厂 微塑料去除率 纤维微塑料 污泥 

分 类 号：X703[环境科学与工程—环境工程] X505