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C. L. Liu, S. S. Li, Z. M. Wang, Y. E. Yang, B. Li, H. Jiang, L. Jiang, L. Wang, L. G. Yao, Z. M. Guo

Field study of the migration of ⁹⁰Sr in a weak loess aquifer

The migration of ⁹⁰Sr in a weak loess aquifer was investigated in-situ in an Underground Research Facility. Quartz containing ⁹⁰Sr, ³H and other nuclides was introduced into the aquifer with a stainless steel pipe. The local water flow field in the aquifer was monitored using a 3-dimensional sampling system. The contaminated area of the aquifer was marked out wholly with the help of a pre-installed stainless steel frame and cut into small pieces (samples) 3-dimensionally, and analyzed. The result of the -3year experiment indicated that ⁹⁰Sr had normal concentration distributions in Y and Z directions. The migration rate of the mass center for ⁹⁰Sr in X direction was calculated as 3.5×10^-5cm/d, the distribution coefficient for ⁹⁰Sr in the aquifer was calculated as 7.4×10²ml/g and the diffusion coefficient for ⁹⁰Sr in the aquifer in X direction was calculated as 1.3×10^-11m²/s.

Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Print ISSN: 0033-8230
Volume: 91, 06/2003
Pages: 357

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