Estimation of In-Situ Groundwater Conditions Based on Geochemical Equilibrium Simulations

This paper presents a means of estimating in-situ groundwater pH and oxidation-redox potential (ORP), two very important parameters for species migration analysis in safety assessments for radioactive waste disposal or carbon dioxide sequestration. The method was applied to a pumping test in a deep borehole drilled in a tertiary formation in Japan for validation. The following application examples are presented: when applied to several other pumping tests at the same site, it could estimate distributions of the in-situ groundwater pH and ORP; applied to multiple points selected in the groundwater database of Japan, it could help estimate the in-situ redox reaction governing the groundwater conditions in some areas

2-17 Understanding microbial ecology in a subsurface environment

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Deep Terrestrial Subsurface Bacterial Unique Distribution Constrained by Geological Setting

出版者版タイトル：Unique distribution of deep groundwater bacteria constrained by geological setting出版者版著者名：Kato, Kenji : Nagaosa, Kazuyo : Kimura, Hiroyuki : Katsuyama, Chie : Hama, Katsuhiro : Kunimaru, Takanori : Tsunogai, Urumu : Aoki, Kazuhiroautho