The influence of solution chemistry on air-water interfacial adsorption and transport of PFOA in unsaturated porous media
作者: Ying LyuMark L. Brusseau
作者单位: 1Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130026, PR China
2Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun, 130026, PR China
3Institute of Water Resources and Environment, College of Construction Engineering, Jilin University, Changchun, 130026, PR China
4Environmental Science Department, Hydrology and Atmospheric Sciences Department, 429 Shantz Bldg, University of Arizona, United States of America
刊名: Science of the Total Environment, 2020, Vol.713
来源数据库: Elsevier Journal
DOI: 10.1016/j.scitotenv.2020.136744
关键词: PerfluoroalkylPFASRetardationPartitioningIonic strength
原始语种摘要: Abstract(#br)There is great interest in the transport behavior of PFAS in the vadose zone, and the impact of leaching on groundwater contamination. Air-water interfacial adsorption is an important process for PFAS retention in unsaturated porous media, and it is influenced by many factors including solution conditions such as ionic strength. The present study employed miscible-displacement column experiments to investigate the impact of ionic strength and pH on perfluorooctanoic acid (PFOA) retardation and transport under dynamic water-flow conditions. The results showed that retardation under unsaturated conditions was affected significantly by changes in ionic strength, whereas there was minimal impact for saturated conditions. This indicates that air-water interfacial adsorption, which...
全文获取路径: Elsevier  (合作)
影响因子:3.258 (2012)

  • unsaturated 未饱和的
  • porous 多孔的
  • solution 溶液
  • adsorption 吸附
  • water 
  • chemistry 化学
  • interfacial 界面的
  • strength 强度
  • influence 影响
  • transport 输运