Factor of Dilution with Freshly Pumped Leachant in Continuous-Flow Leach Tests on High-Level Waste Glass

One of the most important factors for measuring precise leach rates in continuous-flow leach tests on high-level waste glass is the dilution of leachate with freshly pumped leachant(1)(3). When analyzing results from the MCC-4 leach tests(4), the factor of dilution by leachant flow should be taken i...

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Bibliographic Details
Published inJournal of nuclear science and technology Vol. 26; no. 8; pp. 811 - 813
Main Authors KAMIZONO, Hiroshi, SAGAWA, Tamio, TASHIRO, Shingo
Format Journal Article
LanguageEnglish
Published Tokyo Taylor & Francis Group 01.08.1989
Atomic Energy Society of Japan
Taylor & Francis Ltd
Subjects
Applied sciences
borosilicate glass
continuous-flow leach tests
dilution, MCC-4
Exact sciences and technology
geologic disposal
high-level radioactive wastes
Pollution
Urban and domestic wastes
Wastes
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Summary:One of the most important factors for measuring precise leach rates in continuous-flow leach tests on high-level waste glass is the dilution of leachate with freshly pumped leachant(1)(3). When analyzing results from the MCC-4 leach tests(4), the factor of dilution by leachant flow should be taken into account, since the factor determines the apparent saturation concentration after a long duration ; the higher the flow rate, the lower the apparent saturation concentration becomes(3). The dilution of leachate with freshly pumped leachant is examined here, and it is pointed out that the diffusion of elements in water should be fast enough to achieve uniform mixing in leach containers.
ISSN:0022-3131
1881-1248
DOI:10.1080/18811248.1989.9734387