@article{fdi:010083224,
  title = {{U}ranium speciation control by uranyl sulfate and phosphate in tailings subject to a {S}ahelian climate, {C}ominak, {N}iger},
  author = {{L}ahrouch, {F}. and {B}aptiste, {B}. and {D}ardenne, {K}. and {R}othe, {J}. and {E}lkaim, {E}. and {D}escostes, {M}. and {G}{\'e}rard, {M}artine},
  editor = {},
  language = {{ENG}},
  abstract = {{L}ong-term uranium mobility in tailings is an environmental management issue. {T}he present study focuses on two {U}-enriched layers, surficial and buried 14.5 m, of the tailings pile of {C}ominak, {N}iger. {T}he acidic and oxidizing conditions of the tailings pile combined with evapotranspiration cycles related to the {S}ahelian climate control {U} speciation. {U}raninite, brannerite, and moluranite as well as uranophane are relict {U} phases. {EXAFS} spectroscopy, {HR}-{XRD}, and {SEM}/{WDS} highlight the major role of uranyl sulfate groups in uranium speciation. {U}ranyl phos-phate neoformation in the buried layer (paleolayer) acts as an efficient trap for uranium.},
  keywords = {{U}ranium ; {M}ining wastes ; {U}ranium migration ; {EXAFS} spectroscopy ; {E}nvironment ; {U}ranyl phosphate ; {U}ranyl sulfate ; {NIGER} ; {ZONE} {SAHELIENNE} ; {COMINAK}},
  booktitle = {},
  journal = {{C}hemosphere},
  volume = {287},
  numero = {2},
  pages = {132139 [11 ]},
  ISSN = {0045-6535},
  year = {2022},
  DOI = {10.1016/j.chemosphere.2021.132139},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083224},
}