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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received October 25, 2001
Accepted June 18, 2002

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Migration Characteristics of Some Chemical Species in a Granite Fracture according to their Chemical Properties

Chung-Kyun Park^† Bo-Hyun Ryu Pil-Soo Hahn

Korea Atomic Energy Research Institute, Research Team of High Level Radioactive Waste Disposal, Daejeon 305-353, Korea

ckpark@kaeri.re.kr

Korean Journal of Chemical Engineering, September 2002, 19(5), 765-772(8), 10.1007/BF02706965

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Abstract

Migration experiments were carried out in artificial rock fractures of 50×50 cm scale in order to understand the transport phenomena of contaminants in deep geological environment. The tracers used in this experiments were tritiated water, anion, polymers, and sorbing cations. The experimental study was focused on the interpretation of the retardation and matrix diffusion of the tracer in the fracture. To visualize migration phenomena, an organic dye, eosine, was used as a tracer. The migration plumes were taken with a digital camera as a function of time and stored_x000D_ as a digital image file. Computer simulation was performed not only for the hydraulic behavior such as distributions of pressure and flow vectors in the fracture but also for the migration plume and the elution curves. These simulation results were interpreted by comparing experimental ones, thus providing a way to understand migration behavior of tracers and interaction between rock and chemical species.

Keywords

Migration Sorption Retardation Matrix Diffusion Random-walk Method

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