再生水中新兴微量污染物赋存及在河道补水中的迁移转化  

OCCURRENCE,MIGRATION AND TRANSFORMATION OF EMERGING TRACE POLLUTANTS IN RECLAIMED WATER DURING RIVER RECHARGE

作　　者：黄潇 赖俊蓓 梁耀匀 朱高鸣 于江华[1] 高静思 HUANG Xiao;LAI Junbei;LIANG Yaoyun;ZHU Gaoming;YU Jianghua;GAO Jingsi(Collaborative Innovation Center for Atmospheric Environment and Equipment Technology&Key Laboratory for Atmospheric Environment Monitoring and Pollution Control Research,School of Environmental Science and Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;School of Materials and Environmental Engineering,Shenzhen Polytechnic University,Shenzhen 518055,China)

机构地区：[1]南京信息工程大学环境科学与工程学院大气环境与装备技术协同创新中心/大气环境监测与污染控制研究重点实验室,南京210044 [2]深圳职业技术大学材料与环境工程学院,广东深圳518055

出　　处：《环境工程》2024年第7期25-37,共13页Environmental Engineering

基　　金：国家自然科学基金项目(42107064);深圳市可持续发展专项(KCXFZ20211020163817025)。

摘　　要：市政再生水是城市河道补水的重要水源,对增强水体自净能力,提高水环境质量具有重要意义。但再生水中高频检出的新兴微量污染物(EMPs),对其受纳河道的生态安全构成了威胁。回顾了我国再生水发展历程,介绍了再生水回用标准和政策的演变及回用水质要求。以EMPs为核心,重点分析了再生水中药物和个人护理品类(PPCPs)、内分泌干扰物类(EDCs)、全氟化合物(PFCs)等典型EMPs的赋存特性和来源,提出EMPs在河道补水过程中主要通过动力运输、吸附与解吸、物理-化学迁移降解和生物降解4种途径实现迁移转化。通过分析EMPs对河道水体的生态风险,为再生水EMPs生态风险评估和安全回用提供控制思路和理论参考。未来在再生水河道回用中应重视EMPs在实际水体中的降解行为,并注重其监测管理。Municipal reclaimed water plays a crucial role in water supplementation,significantly enhancing the self-purification capacity of water bodies and improving water environment quality.However,the prevalent presence of emerging trace pollutants(EMPs)in reclaimed water threatens the ecological security of rivers where it is reused.This article reviews the development process of reclaimed water in China,and introduces the evolution of standards and policies,as well as the requirements for reclaimed water quality.Focusing on the EMPs,occurrence characteristics and origins of typical EMPs such as pharmaceutical and personal care products(PPCPs),endocrine disrupting chemicals(EDCs),and perfluorinated compounds(PFCs)in reclaimed water are analyzed.It is proposed that EMPs achieve migration and transformation primarily through four pathways:dynamic transport,adsorption and desorption,physical-chemical migration and degradation,and biodegradation,during the process of river water replenishment.Analyzing the ecological risks of EMPs on river water bodies,provides insights and theoretical references for the ecological risk assessment of EMPs and the safe reuse of reclaimed water.In the future,the degradation behavior of EMPs in actual water bodies should be emphasized in the reuse of reclaimed water streams,and rigorous monitoring and management protocols for EMPs should also be implemented.

关 键 词：再生水 新兴微量污染物 河道补水 排放标准 赋存形态 

分 类 号：X703[环境科学与工程—环境工程]