@article{fdi:010080532,
  title = {{U}ranium retention on iron oxyhydroxides in post-mining environmental conditions},
  author = {{L}ahrouch, {F}. and {G}uo, {N}. and {H}unault, {M}ojy and {S}olari, {P}. {L}. and {D}escostes, {M}. and {G}{\'e}rard, {M}artine},
  editor = {},
  language = {{ENG}},
  abstract = {{I}nvestigating uranium migration mechanisms related to the weathering of waste rocks is essential for developing strategies that can address the potential environmental issues caused by uranium mining. {T}his work is based on environmental samples containing 2 {L} ferrihydrite, lepidocrocite and goethite collected in the technosols from granitic waste rock piles, mine drainage conduits and mine waters. {T}he results show the important role of iron oxyhydroxide in {U} immobilization and re-concentration. {EXAFS} spectroscopy combined with mineralogical and geochemical studies ({S}canning electronic microscopy, {W}avelength-dispersive {X}-ray spectroscopy microprobe, inductively coupled plasma - optical emission spectrometry/mass spectrometry and {X}-ray diffraction) allowed for the identification of uranyl ternary surface complexes at the ferrihydrite surface that were either composed of phosphate groups or organic matter. {M}oreover, goethite and lepidocrocite were also identified as a secondary trap for {U} immobilization. {U}({VI}) is known to be mobile in oxidizing conditions. {T}his study highlights the control of the uranyl mobility by various iron oxyhydroxides in supergene conditions.},
  keywords = {{U}ranium ; {M}ining wastes ; {U}ranium migration ; {EXAFS} spectroscopy ; {I}ron ; oxyhydroxides ; {E}nvironment ; {FRANCE}},
  booktitle = {},
  journal = {{C}hemosphere},
  volume = {264},
  numero = {1},
  pages = {128473 [9p.]},
  ISSN = {0045-6535},
  year = {2021},
  DOI = {10.1016/j.chemosphere.2020.128473},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080532},
}