污水处理厂PPCPs的污染现状与去除技术

近年来,药品和个人护理品(PPCPs)作为一类新兴有机污染物在环境中被广泛报道。传统的污水处理厂处理工艺难以有效去除污水中的PPCPs,残留在污水处理厂出水中的PPCPs及其代谢物进入水环境会严重威胁人类健康和生态环境。介绍了PPCPs的类别、性质以及水环境中PPCPs的赋存水平及其潜在危害,提出风险熵法(RQ)是国内外普遍使用的风险评价方法;跟踪了近20年来PPCPs在污水处理厂的来源与分布,分析了不同国家和地区的污水处理厂不同处理工艺各处理单元对PPCPs的去除效果;指出一些先进技术已有效应用于污水处理厂污水中PPCPs的去除,如高级氧化技术、膜过滤技术、活性炭吸附技术,并对各种技术去除PPCPs的优势和瓶颈进行了分析。

Removal Methods and Research Progress of Pharmaceuticals and Personal Care Products(PPCPs)in Sewage Treatment Plants

In recent years,Pharmaceuticals and Personal Care Products(PPCPs)have been widely reported in the environment.Conventional Sewage Treatment Plants(CSTPs)are insufficient when it comes to PPCPs removal,the residual PPCPs and its metabolites in effluent is detrimental to environmental and human health.This paper introduces the category,property,the occurrence level and its potential harm of PPCPs in the water environment,and introduces the risk assessment method,the Risk Quotient(RQ),which is commonly used at home and abroad.The paper summarizes the source and distribution in STPs in the past 20 years,then analyzes the performance of PPCPs removal of different treatment systems employed at each unit process in different regions.The paper also summarizes the main removal and degradation PPCPs techniques,such as advanced oxidation processes,membrane filtration,activated carbon and analyzes the advantages and bottlenecks of various technologies for removing PPCPs.