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Present state and future modeling of geochemistry in hydrogeological systems

Abstract : A first step towards understanding and controlling the fate and dissemination of radioactive waste is to create a concise and comprehensive theoretical framework for the rather non-linear processes involved — hence, the need for geochemical models. Two classes of geochemical models are commonly used, i.e., static and hydrodynamic models. In contrast to static models, hydrodynamic models combine geochemical reactions with hydrogeological processes such as ground-water flow, diffusion and dispersion. In this review, we examine the present state of geochemical models in terms of included processes, thermodynamic databases, missing phenomena, numerical behavior and performance. It is shown that over the past decade, significant progress has been made with respect to modeling of geochemistry in hydrodynamic systems: this is illustrated by describing several applications. Finally, we focus on the perspectives of geochemical modeling in the assessment of the safety of nuclear waste disposal.
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Contributor : Laurent de Windt <>
Submitted on : Wednesday, November 4, 2015 - 7:53:44 PM
Last modification on : Thursday, September 24, 2020 - 4:34:19 PM
Long-term archiving on: : Friday, February 5, 2016 - 11:35:11 AM

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  • HAL Id : hal-00596555, version 1

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Jan van der Lee, Laurent de Windt. Present state and future modeling of geochemistry in hydrogeological systems. Journal of Contaminant Hydrology, Elsevier, 2001, 47, pp.265-282. ⟨hal-00596555⟩

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