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Migration Behavior of Carbonate-14C in Tuffaceous Soil

Published online by Cambridge University Press:  15 February 2011

S. Nagao  and
M. Senoo
S. Nagao
Affiliation:
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai-mura Naka-gun Ibaraki-ken 319–11, Japan
M. Senoo
Affiliation:
Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai-mura Naka-gun Ibaraki-ken 319–11, Japan
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Abstract

A simple closed column system was developed to study migration of bicarbonate and carbonate 14C in soil layer. Experimental data for glass beads having less the 14C adsorption indicate that the system can be performed on column experiment keeping mass balance of 14C. Migration behavior of bicarbonate and carbonate 14C in a tuffaceous sandy soil was investigated by this column system in the pH range from 8 to 12. The 14C was delayed to tritiated water, and the retardation became stronger in order, pH 12 < pH 10 < pH 8. This is considered to be due to pH-dependent adsorption of bicarbonate and carbonate ions onto the soil sample.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 353: Symposium – Scientific Basis for Nuclear Waste Management XVIII , 1994 , 1093
Copyright
Copyright © Materials Research Society 1995

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