高铁酸钾氧化降解新兴有机污染物的研究进展

Research progess on the oxidation of emerging organic contaminants by ferrate(Ⅵ)

新兴有机污染物在传统的污水处理厂处理过程中难以完全去除,如果进入到水环境中,不仅影响水质,而且对水生态系统和人类健康具有潜在的风险.高铁酸钾在水处理领域被称为环境友好型的多功能水处理剂,其氧化降解新兴有机污染物的研究备受关注.本文详细介绍了高铁酸钾的结构和性质,重点论述了高铁酸钾与新兴有机污染物的反应机制,如:化学反应动力学、线性自由能关系、反应副产物及其毒性变化,并对未来的研究方向与发展趋势进行了展望.

Emerging organic contaminants have been found incompletely removed in conventional wastewater treatment plants （WWTPs）. Wide presence of emerging organic contaminants in WWTP effluents and in receiving aquatic environments may affect water quality and pose potential risks to the aquatic ecosystem and human health. Ferrate （V[） （Fe （VI）） is regarded as an environmentally friendly oxidant in water and wastewater treatment process. The recent developments of ferrate oxidation of emerging organic contaminants are under the spotlight. In this paper, we first introduced the structures and properties of Fe （ V[ ）, then discussed the reaction mechanisms of Fe （ V[ ） with selected emerging organic contaminants by using reaction kinetics, linear free-energy relationship, oxidation products identification and toxicity evaluation, and finally proposed future research directions in this research field.