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Measuring the k–S–p relations on DNAPLs migration |
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| Authors: | Masashi Kamon Kazuto Endo Takeshi Katsumi |
| Institution: | Graduate School of Global Environmental Studies, Kyoto University, Sakyo, Kyoto 606-8501, Japan Research Center for Material Cylcles and Waste Management, National Institute for Environmental Studies, 16-2, Onogawa, Tsukuba, Ibaraki 305-8506, Japan, |
| Abstract: | Migration characteristics of dense non-aqueous phase liquids (DNAPLs) in the subsurface can be expressed as a water–DNAPL two-phase system based on mainly the k–S–p relations, which describe the relations among relative permeability (k), degree of water saturation (S), and capillary pressure head (p). The aims of this research are to develop an experimental system with new type of probes, such as the electrical conductivity probe for measuring the degree of water saturation and the hydrophilic and hydrophobic tensiometer for measuring the pore water and DNAPL pressures, and also to estimate the results obtained from the developed experimental system. From these tests, the excellent k–S–p relations were obtained and the efficiency and validity of this developed experimental system have been confirmed in terms of the concept of the scaling coefficient calculated by interfacial tensions. |
| Keywords: | Dense non-aqueous phase liquids Degree of water saturation Capillary pressure head Electrical conductivity Hydrophobic tensiometer Scaling coefficient |
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