基于城市污水处理厂微塑料处理技术及控制策略研究

Discussion on Microplastic Treatment Technologies and Strategies of Urban Water Environment based on WastewaterTreatment Plants

微塑料污染现已成为阻碍全球环境健康发展的世界性难题之一。微塑料在进入水环境之初,多聚集在污水厂原水中,且污水厂已被证实是下游水体微塑料污染的主要来源。近年来,关于污水厂中微塑料的研究多集中在迁移规律上,而围绕污水厂对微塑料污染治理和管控的探讨则略显不足。文章在梳理了污水厂中微塑料来源与分布特征后,从污水厂对微塑料的去除效率、新型处理技术对微塑料去除或降解效率、缓解微塑料污染的建议与措施三个角度论述了现有条件下基于污水处理厂的微塑料污染治理策略,以期明晰未来微塑料治理的发展方向。

Microplastic pollution has become one of the worldwide problems that hinder the healthy development of the global environment.At the beginning of entering the water environment,microplastics mostly concentrated in the raw water of the wastewater treatment plants,and wastewater treatment plants have been proved to be the main source of microplastics pollution in the downstream water.In recent years,reports on microplastics in wastewater treatment plants mostly focus on the migration law,but the discussion on the treatment and control of microplastics pollution in wastewater treatment plants is insufficient.After sorting out the sources and distribution characteristics of microplastics in wastewater treatment plants,this paper discusses the pollution control strategy of microplastics based on wastewater treatment plants under the existing conditions from three angles:the removal efficiency of sewage plants to microplastics,the removal or degradation efficiency of new treatment technologies to microplastics,and the suggestions and measures to alleviate the pollution in microplastics,with a view to clarifying the development direction of microplastics in the future.