水体中氟乐灵的生物毒性和去除研究进展

作为一种在全球范围内广泛使用的二硝基苯胺类除草剂,氟乐灵对环境和人体健康的潜在危害越来越受到人们的关注.本文首次总结了水体中氟乐灵的来源、生物毒性、毒性机理以及饮用水处理中去除氟乐灵的物理、化学和生物方法.传统单独的加氯消毒、生物膜工艺等通常难以高效去除水体中的氟乐灵,而以紫外线和臭氧为基础的高级氧化技术（AOPs）由于能产生具有强氧化能力的羟基自由基而对水体中痕量氟乐灵有较好的去除效果.最后在此基础上,对今后的研究方向进行了展望,提出改进饮用水中微量氟乐灵的毒性检测和去除工艺亟待解决的问题.

Research Progress of Biotoxicity and Removal Methods of Trifluralin in Water

As one kind of dinitroaniline herbicide used worldwide, the potential toxicity of trifluralin to environment and human health has attracted more and more attention in recent years. This paper summarized the source, biotoxicity and toxicity mechanism of triflttralin in the water environment, with physical, chemical and biological methods applied to remove trifluralin in portable water treatment. Traditional chlorine disinfection, biological process and etc. are difficult to remove trifluralin in waterefficiently. However, advanced oxidation processes （AOPs） based on UV and O3 has a good trifluralin removal efficiency due to the generated hydroxyl radicals with strong oxidation ability. In the light of some shortcomings existd in toxicity tests and removal methods of trifluralin, some suggestions and prospects are proposed in the research field of trace level of trifluralin in portable water treatment in the future.