Sorption of As (V) by some oxyhydroxides and clay minerals. Application to its immobilization in two polluted mining soils

  title={Sorption of As (V) by some oxyhydroxides and clay minerals. Application to its immobilization in two polluted mining soils},
  author={Antonio Garc{\'i}a S{\'a}nchez and E. {\'A}lvarez-ayuso and Flor Rodr{\'i}guez-Mart{\'i}n},
  journal={Clay Minerals},
  pages={187 - 194}
Abstract Among the arsenic species in the environment, arsenate predominates under oxidizing conditions in soils and waters. The adsorption of As(V) by some natural Fe oxyhydroxides and clay minerals and synthetic Al(OH)3 and FeOOH has been studied. The results show a very high As(V) adsorption capacity on both synthetic Al hydroxide (122 mg/g at pH: 5) and Fe oxyhydroxide (76 mg/g at pH 5). This adsorption capacity is pH dependent and shows maximum values at ~pH 4. The application of these… 
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