Geochemical interactions between leachants from actinide-doped Synroc and three Australian granites

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dc.contributor.authorGuthrie, VAen_AU
dc.contributor.authorHart, KPen_AU
dc.contributor.authorLevins, DMen_AU
dc.contributor.authorSeatonberry, BWen_AU
dc.date.accessioned2025-11-24T02:06:37Zen_AU
dc.date.available2025-11-24T02:06:37Zen_AU
dc.date.issued1991-02-01en_AU
dc.date.statistics2025-09-10en_AU
dc.descriptionPhysical copy held by ANSTO Library at DDC: 577.277/44.en_AU
dc.description.abstractA study has been undertaken on the interactions of leachates from actinide-doped Synroc and three Australian granites. Leach testing was carried out on Synroc containing 237Np, 239Pu and 244Cm under MCC-1 conditions in close proximity to granite specimens at 70deg C for 28 days. The presence of the granites increased the pH and reduced the total activity released from the Synroc. Preferential uptake of actinides occurred onto specific secondary minerals, especially hematite, other Fe-oxides/hydroxides, leucoxene, sericite, chlorite and clays. The controlling mechanisms for fixation of actinides on the granites appeared to be adsorption, ionic exchange and reduction by Fe(II). The high sorptive capacity of the alteration minerals significantly reduced the concentration of actinides in solution indicating that hydrothermally-altered granites, with a significant proportion of secondary minerals present, are capable of removing actinides from groundwaters. © 1991, Walter de Gruyter.en_AU
dc.identifier.booktitleChemistry and migration behaviour of actinides and fission products in the geosphere : proceedings of the second International Conference in Monterey, California, 6-10 November 1989en_AU
dc.identifier.citationGuthrie, V. A., Hart, K. P., Levins, D. M., & Seatonberry, B. W. (1991). Geochemical interactions between leachants from actinide-doped Synroc and three Australian granitess. Paper presented to the Chemistry and migration behaviour of actinides and fission products in the geosphere : proceedings of the second International Conference in Monterey, California, 6-10 November 1989. In Radiochimica Acta, 52-53(1), 159–168. doi:10.1524/ract.1991.5253.1.159en_AU
dc.identifier.conferenceenddate1989-11-10en_AU
dc.identifier.conferencenameChemistry and migration behaviour of actinides and fission products in the geosphere : second International Conferenceen_AU
dc.identifier.conferenceplaceMonterey, Californiaen_AU
dc.identifier.conferencestartdate1989-11-06en_AU
dc.identifier.isbn3486642285en_AU
dc.identifier.issn0033-8230en_AU
dc.identifier.issn2193-3405en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleRadiochimica Actaen_AU
dc.identifier.pagination159-167en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16735en_AU
dc.identifier.volume52-53en_AU
dc.language.isoenen_AU
dc.publisherDe Gruyteren_AU
dc.relation.urihttps://doi.org/doi:10.1524/ract.1991.5253.1.159en_AU
dc.subjectActinidesen_AU
dc.subjectActinide nucleien_AU
dc.subjectAlpha decay radioisotopesen_AU
dc.subjectAdsorptionen_AU
dc.subjectCurium 244en_AU
dc.subjectGranitesen_AU
dc.subjectGround wateren_AU
dc.subjectIon exchangeen_AU
dc.subjectLeachatesen_AU
dc.subjectLeachingen_AU
dc.subjectNeptunium 237en_AU
dc.subjectpH Valueen_AU
dc.subjectPlutonium 239en_AU
dc.subjectReductionen_AU
dc.subjectSynthetic rocksen_AU
dc.subjectUnderground disposalen_AU
dc.subjectYears living radioisotopesen_AU
dc.titleGeochemical interactions between leachants from actinide-doped Synroc and three Australian granitesen_AU
dc.typeConference Paperen_AU
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