Low-concentration tracer tests to measure air-water interfacial area in porous media
作者: Mark L. BrusseauYing LyuNi YanBo Guo
作者单位: 1Environmental Science Department, University of Arizona, Tucson, AZ, 85721, USA
2Hydrology and Atmospheric Science Department, University of Arizona, Tucson, AZ, 85721, USA
3Institute of Water Resources and Environment, College of Construction Engineering, Jilin University, Changchun, 130026, PR China
4Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, PR China
刊名: Chemosphere, 2020, Vol.250
来源数据库: Elsevier Journal
DOI: 10.1016/j.chemosphere.2020.126305
关键词: Interfacial partitioningInterfacial adsorptionFluid-fluid interfaces
英文摘要: Abstract(#br)The aqueous-based interfacial tracer method employing miscible-displacement tests is one method available for measuring air-water interfacial areas. One potential limitation to the method is the impact of tracer-induced drainage on the system. The objective of this study was to investigate the efficacy of a low-concentration tracer test method for measuring air-water interfacial area. Tracer concentrations and analytical methods were selected that allowed the use of tracer input concentrations that were below the threshold of tracer-induced drainage. Multiple tracer tests were conducted at different water saturations. Interfacial areas increased from 34.8 to 101 cm −1 with the decrease in saturation from 0.86 to 0.62. The method produced relatively robust measurements of...
全文获取路径: Elsevier  (合作)
影响因子:3.137 (2012)

  • concentration 浓度
  • tracer 示踪物
  • measure 测度
  • porous 多孔的
  • interfacial 界面的
  • water 
  • media 中脉