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Title: Radionuclide removal by apatite

In this study, a growing body of research supports widespread future reliance on apatite for radioactive waste cleanup. Apatite is a multi-functional radionuclide sorbent that lowers dissolved radionuclide concentrations by surface sorption, ion exchange, surface precipitation, and by providing phosphate to precipitate low-solubility radionuclide-containing minerals. Natural apatites are rich in trace elements, and apatite’s stability in the geologic record suggest that radionuclides incorporated into apatite, whether in a permeable reactive barrier or a waste form, are likely to remain isolated from the biosphere for long periods of time. Here we outline the mineralogic and surface origins of apatite-radionuclide reactivity and show how apatites might be used to environmental advantage in the future.
Authors:
 [1] ;  [1] ;  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND2016-2340J
Journal ID: ISSN 0003-004X; 643757
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
American Mineralogist
Additional Journal Information:
Journal Volume: 101; Journal Issue: 12; Journal ID: ISSN 0003-004X
Publisher:
Mineralogical Society of America
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES
OSTI Identifier:
1347532

Rigali, Mark J., Brady, Patrick V., and Moore, Robert C.. Radionuclide removal by apatite. United States: N. p., Web. doi:10.2138/am-2016-5769.
Rigali, Mark J., Brady, Patrick V., & Moore, Robert C.. Radionuclide removal by apatite. United States. doi:10.2138/am-2016-5769.
Rigali, Mark J., Brady, Patrick V., and Moore, Robert C.. 2016. "Radionuclide removal by apatite". United States. doi:10.2138/am-2016-5769. https://www.osti.gov/servlets/purl/1347532.
@article{osti_1347532,
title = {Radionuclide removal by apatite},
author = {Rigali, Mark J. and Brady, Patrick V. and Moore, Robert C.},
abstractNote = {In this study, a growing body of research supports widespread future reliance on apatite for radioactive waste cleanup. Apatite is a multi-functional radionuclide sorbent that lowers dissolved radionuclide concentrations by surface sorption, ion exchange, surface precipitation, and by providing phosphate to precipitate low-solubility radionuclide-containing minerals. Natural apatites are rich in trace elements, and apatite’s stability in the geologic record suggest that radionuclides incorporated into apatite, whether in a permeable reactive barrier or a waste form, are likely to remain isolated from the biosphere for long periods of time. Here we outline the mineralogic and surface origins of apatite-radionuclide reactivity and show how apatites might be used to environmental advantage in the future.},
doi = {10.2138/am-2016-5769},
journal = {American Mineralogist},
number = 12,
volume = 101,
place = {United States},
year = {2016},
month = {12}
}