SIMFUEL dissolution studies in granitic groundwater

Kaija Ollila

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

Abstract

The dissolution behaviour of an unirradiated chemical analogue of spent nuclear fuel, SIMFUEL, has been studied in synthetic, granitic groundwater under anoxic conditions. The release of U and the minor components Mo, Ru, Sr, Ba, La, Zr, Ce, Y, Rh, Pd and Nd was monitored during static (batch) leaching experiments. For molybdenum, ruthenium, strontium and barium, the leaching results (the total experimental time of 300 days) show a trend to congruent dissolution with the UO2 matrix. The release rates of lanthanum, zirconium and cerium are higher relative to uranium. Sorption, colloidal and/or precipitation phenomena appear to play an important role under these experimental conditions.
Original languageEnglish
Pages (from-to)70-77
JournalJournal of Nuclear Materials
Volume190
DOIs
Publication statusPublished - 1992
MoE publication typeA1 Journal article-refereed

Fingerprint

leaching
ground water
Leaching
Groundwater
dissolving
Dissolution
Cerium
Lanthanum
spent fuels
Strontium
Uranium
Molybdenum
Ruthenium
nuclear fuels
Spent fuels
Nuclear fuels
Barium
cerium
lanthanum
Zirconium

Cite this

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title = "SIMFUEL dissolution studies in granitic groundwater",
abstract = "The dissolution behaviour of an unirradiated chemical analogue of spent nuclear fuel, SIMFUEL, has been studied in synthetic, granitic groundwater under anoxic conditions. The release of U and the minor components Mo, Ru, Sr, Ba, La, Zr, Ce, Y, Rh, Pd and Nd was monitored during static (batch) leaching experiments. For molybdenum, ruthenium, strontium and barium, the leaching results (the total experimental time of 300 days) show a trend to congruent dissolution with the UO2 matrix. The release rates of lanthanum, zirconium and cerium are higher relative to uranium. Sorption, colloidal and/or precipitation phenomena appear to play an important role under these experimental conditions.",
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year = "1992",
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language = "English",
volume = "190",
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}

SIMFUEL dissolution studies in granitic groundwater. / Ollila, Kaija.

In: Journal of Nuclear Materials, Vol. 190, 1992, p. 70-77.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - SIMFUEL dissolution studies in granitic groundwater

AU - Ollila, Kaija

PY - 1992

Y1 - 1992

N2 - The dissolution behaviour of an unirradiated chemical analogue of spent nuclear fuel, SIMFUEL, has been studied in synthetic, granitic groundwater under anoxic conditions. The release of U and the minor components Mo, Ru, Sr, Ba, La, Zr, Ce, Y, Rh, Pd and Nd was monitored during static (batch) leaching experiments. For molybdenum, ruthenium, strontium and barium, the leaching results (the total experimental time of 300 days) show a trend to congruent dissolution with the UO2 matrix. The release rates of lanthanum, zirconium and cerium are higher relative to uranium. Sorption, colloidal and/or precipitation phenomena appear to play an important role under these experimental conditions.

AB - The dissolution behaviour of an unirradiated chemical analogue of spent nuclear fuel, SIMFUEL, has been studied in synthetic, granitic groundwater under anoxic conditions. The release of U and the minor components Mo, Ru, Sr, Ba, La, Zr, Ce, Y, Rh, Pd and Nd was monitored during static (batch) leaching experiments. For molybdenum, ruthenium, strontium and barium, the leaching results (the total experimental time of 300 days) show a trend to congruent dissolution with the UO2 matrix. The release rates of lanthanum, zirconium and cerium are higher relative to uranium. Sorption, colloidal and/or precipitation phenomena appear to play an important role under these experimental conditions.

U2 - 10.1016/0022-3115(92)90077-X

DO - 10.1016/0022-3115(92)90077-X

M3 - Article

VL - 190

SP - 70

EP - 77

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -