Original scientific paper
https://doi.org/10.13044/j.sdewes.2014.02.0002
Estimation of In-Situ Groundwater Conditions Based on Geochemical Equilibrium Simulations
Toshiyuki Hokari
; Shimizu Corporation, Institute of Technology, Japan
Teruki Iwatsuki
; 2Tono Geoscientific Research Unit Japan Atomic Energy Agency, Japan
Takanori Kunimaru
; Tono Geoscientific Research Unit Japan Atomic Energy Agency, Japan Cite as: Hokari, T., Iwatsuki, T., Kunimaru, T., Estimation of In-Situ Groundwater Conditions
Abstract
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.
Keywords
Groundwater; Water conditions; In-situ; pH; Oxidation-redox potential (ORP); Geochemical calculation; Mineral-water interaction
Hrčak ID:
118500
URI
Publication date:
27.3.2014.
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