持久性有机污染物水环境生态修复.docx

文档介绍：持久性有机污染物水环境生态修复

摘要:POPs因其自身的毒性和在水体及沉积物中的残留与富集日益成为人们关注的热点。在水体持久性有机污染物的物理、化学、生物修复技术中,生物修复因成本低、效率高、无二次污染、不破坏植物生长所需的水环境等特点得到学术界的重视。本文综述了水体中持久性有机污染物的生态修复技术和各自特点,重点归纳了水体POPs植物修复与微生物修复的机理、实例以及各种修复技术的优缺点和水体持久性有机污染物生态修复应注意的问题。
关键词:生态修复;持久性有机污染物;水体
Ecological restoration of anic pollutants in water environment
(School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China)
Abstract:because of their toxicity and enrichment and residual in water and sediments,POPsisincreasingly ing the focus of physical,chemical and biological remediation method of POPs in water,bioremediation got the attention from munity because of its advantage of low cost ,high efficiency,no secondary pollution,not destroying the water reqired fot plant paper reviews techniques and characteristics of different method of ecological restoration of POPs in water mechanism and examples of plant restoration and microbial remediation of POPs in water enviorment,advantages and disadvantages of each restoration technique and problems that should pay attention to in ecological restoration of POPs in water enviroment.
前言

持久性有机污染物(POPs)是指通过各种环境介质(大气、水、生物体等)能够长距离迁移并且长期存在于环境中,具有长期残留性、生物蓄积性、半挥发性和高毒性的特点[1-2],对人类健康和环境具有危害的天然或人工合成的有机污染物质。近年来,POPs对人体和环境带来的危害已成为世界各国关注的环境焦点。
目前Pops的研究热点问题有:POPs污染状况环境调查、POPs毒性及生态影响研究、POPs基本特性常数及结构-活性定