太原理工大学学报2025，Vol.56Issue(4)：648-655,8.DOI:10.16355/j.tyut.1007-9432.20240120
Fe(Ⅵ)/PS联用工艺降解菲的性能和机理
Performance and Mechanism of Phenanthrene Degradation by Fe(Ⅵ)/PS Combined Process
摘要
Abstract
[Purposes]The oxidative degradation of phenanthrene by Fe(VI)/PS combined pro-cess needs study.[Methods]The effects of Fe(VI)oxidation time,pH,and dosage of oxidant on the phenanthrene degradation by the combined process were investigated by using methods such as fluores-cence detection and GC-MS.The reaction mechanism of the combined process was clarified and the reaction pathways was inferred.[Results]The results show that when the pH is 7 and n(Fe(VI)):n(PS):n(PHE)is 2:2:1,the removal efficiency of phenanthrene at 6 µmol·L-1 reaches 83.37%,with PS additon after Fe(VI)reacting for 300 s.In the early stage of the combined process,phenanthrene is oxidized efficiently by Fe(VI).In the later stage,the organics are continually degraded by SO4-·and HO·generated from the process that PS is effectively activated by Fe substances from Fe(VI)re-duction,taking the advantages of single oxidation methods.Phenanthrene is gradually oxidized,hy-droxylated,split,and hydrogenated,mainly via two pathways of 9,10 phenanthrene quinone and 2,3 phenanthrene quinone,separately,and finally effectively mineralized,under the action of high valence iron,SO4-·,HO·,and other active substances.关键词
Fe(Ⅵ)/过硫酸盐/菲/降解机制/产物分析Key words
ferrate/persulfate/phenanthrene/degradation mechanism/products analysis分类
资源环境引用本文复制引用
景康健,李亚男,王乐心,王建伟,王嘉琪,张国凯..Fe(Ⅵ)/PS联用工艺降解菲的性能和机理[J].太原理工大学学报,2025,56(4):648-655,8.基金项目
山西省基础研究计划项目(20210302123121) （20210302123121）
山西省回国留学人员科研资助项目(2023-054) （2023-054）
