摘要
多氯联苯(PCBs)是环境中广泛存在的一种典型的持久性有毒有机污染物,对人类和环境产生了许多不利影响。近年来,零价铁技术作为化学修复PCBs污染介质的一种有效方法,具有较好的应用前景。文章综述了国内外应用零价铁技术对环境介质中PCBs污染物脱氯还原的研究进展,介绍了铁粉、纳米铁、铁钯双金属降解PCBs的反应以及影响因素的研究,指出了目前利用零价铁技术降解PCBs研究存在的问题,并对今后零价铁脱氯还原技术治理土壤或沉积物中PCBs污染物的实际应用提出了展望。
Technical progress in application of zero-valent iron to de-chlorination and degradation of polychlorinated biphenyls (PCBs) is reviewed. Experimental studies with iron powder, nano-scale iron and alloy of Pd/Fe in treatment and remediation of PCB-contaminated soil and sediments are described respectively, and the problems still remain to be solved are discussed.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2009年第3期78-82,共5页
Environmental Science & Technology
关键词
多氯联苯
零价铁
脱氯还原
polychlorinated biphenyls (PCBs)
zero-valent iron
de-chlorination