水中全氟化合物的污染处理研究进展

发布时间：2019-02-23 10:08

【摘要】：全氟化合物(Perfluorinated Compounds,PFCs)是一类在水体中有极高的溶解度含氟烃类化合物,具有潜在的环境污染持久性、生物毒性和累积性,严重危害人类的身体健康。水中PFCs污染处理已经成为各国研究人员的一个研究热点。报告了几种常见的水中PFCs处理技术,如物理吸附技术、光化学法、电化学氧化法、热降解以及生物降解等。物理吸附技术具有成本低,效率高以及操作简单等优点,但其只达到了吸附去除的目的,未能从根本上降解PFCs,而且后续的焚烧等处理手段会对环境造成更大的污染,常用作工业废水中的PFCs处理;化学方法及热降解虽然能够达到降解PFCs的目的,但存在试剂及装置费用高、反应条件苛刻和二次污染等缺点。生物降解目前在降解PFCs方面存在争议,受菌株筛选以及各种其他外部环境的影响,在水体中的PFCs处理中应用不多。此外,展望了水体中PFCs的降解技术的发展趋势和研究重点。
[Abstract]:Perfluorinated compounds (Perfluorinated Compounds,PFCs) are a class of fluorinated hydrocarbons with high solubility in water, which have potential environmental pollution persistence, biotoxicity and accumulation, which seriously endanger human health. The treatment of PFCs pollution in water has become a research hotspot of researchers all over the world. Several common water PFCs treatment techniques, such as physical adsorption, photochemical, electrochemical oxidation, thermal degradation and biodegradation, were reported. Physical adsorption technology has the advantages of low cost, high efficiency and simple operation, but it can only achieve the purpose of adsorption and removal. The failure to fundamentally degrade PFCs, and subsequent incineration will cause more pollution to the environment. It is often used for PFCs treatment in industrial wastewater. Although chemical method and thermal degradation can achieve the purpose of PFCs degradation, there are many disadvantages, such as high cost of reagents and devices, harsh reaction conditions and secondary pollution. Biodegradation is currently controversial in the degradation of PFCs. Due to the screening of strains and the influence of various other external environments, the application of biodegradation in the treatment of PFCs in water is not many. In addition, the development trend and research focus of PFCs degradation technology in water are prospected.
【作者单位】：济南出入境检验检疫局;山东大学化学与化工学院;
【基金】：山东出入境检验检疫局科技项目(SK201418)资助
【分类号】：X52

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