EGU21-13731
https://doi.org/10.5194/egusphere-egu21-13731
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Relationship between the formation of flow paths and elution behavior with water flow through the soil column

Kyouhei Tsuchida, Kengo Nakamura, Monami Kondo, Noriaki Watanabe, and Takeshi Komai
Kyouhei Tsuchida et al.
  • Tohoku, Graduate School of Environmental Studies, Department of Environmental Studies for Advanced Society, Japan (kyouhei.tsuchida.q2@dc.tohoku.ac.jp)

The transport phenomenon of pollutants in soil is complicated because of the formation of the flow path in soil. In this study, the relationship between the flow path in the soil and the elution behavior of various components was evaluated by the column tests with different filling methods to change the flow path in the column. The flow path in the column was visualized by using potassium iodide aqueous solution and X-ray CT. Our result shows that the elution behavior of the easily eluted components was not significantly affected by the flow path in the column. In addition, the cation more eluted when the flow path spread throughout the column than when the flow path was intensive. This suggests that eluted components may be affected by anions in soil. From these results, it was found that the elution behavior of components is influenced by the flow path in the column and some were not, and when it was influenced, the degree of influence is different depending on the components.

How to cite: Tsuchida, K., Nakamura, K., Kondo, M., Watanabe, N., and Komai, T.: Relationship between the formation of flow paths and elution behavior with water flow through the soil column, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-13731, https://doi.org/10.5194/egusphere-egu21-13731, 2021.

Corresponding displays formerly uploaded have been withdrawn.