市政污泥中微塑料的分布及风险评估  

Distribution and risk assessment of microplastics in municipal sludge from six water treatment plants in Zhengzhou City

作　　者：梁曦殳 窦艳艳[1] 段学军[1] 陈旭东 敖天宇 李扬 LIANG Xishu;DOU Yanyan;DUAN Xuejun;CHEN Xudong;AO Tianyu;LI Yang(School of Smart Energy and Environment,Zhongyuan University of Technology,Zhengzhou 450007,China)

机构地区：[1]中原工学院智慧能源与环境学院,河南郑州450007

出　　处：《中原工学院学报》2025年第1期53-58,94,共7页Journal of Zhongyuan University of Technology

基　　金：河南省自然科学基金项目(242300421666);中原工学院青年骨干教师资助计划项目(2021XQG04)。

摘　　要：微塑料作为一种新污染物在水厂污泥中造成潜在生态风险。以郑州市6座水厂的污泥为研究对象,通过现场采样和拉曼光谱分析测定其中微塑料的分布。结果表明:微塑料丰度范围为8000~14250 n/kg,平均丰度为10566 n/kg,污水处理厂污泥中的微塑料数量高于自来水厂;自来水厂污泥中的微塑料以纤维状为主,而污水处理厂则以颗粒状为主;6座水厂中有2座水厂的区域危害指数为Ⅳ级,其余为Ⅲ级,表明该2座水厂污泥中的微塑料存在重大潜在风险。The availability of research data on the potential ecological risks posed by microplastics in sludge pollutant remains limited.In this study,field sampling and Raman spectrum analysis were employed to determine the composition of microplastics in sludge obtained from six water plants located in Zhengzhou City.The findings revealed that the abundance of microplastics ranged from 8000 to 14250 n/kg,with an average abundance of 10566 n/kg.Moreover,it was observed that sludge in waste water treatment plants contained higher quantities of microplastics compared to drinking water treatment plants.Specifically,fibrous dominated in sludge in drinking water treatment plants while granular prevailed in waste water treatment plants.Furthermore,calculations based on the pollutant hazard index indicated that two out of the six water plants exhibited a level Ⅳ,whereas the remaining four displayed a level Ⅲ.Furthermore,assessments using the potential ecological risk index demonstrated significant potential risks associated with microplastic contamination in the sludge from two water plants.

关 键 词：微塑料 污泥 分布特征 风险评估 

分 类 号：X502[环境科学与工程—环境工程]