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- W159203420 abstract "This thesis work is aimed at examining the oxygen atom mixing between common iron(III) oxides and Fe(II)<sub>aq</sub> solution during the sorption process. First, <sup>18</sup>O labeled iron(III) minerals were used in batch sorption reactors to study the exchange of oxygen atom within the Fe(II)<sub>aq</sub> - iron(III) oxide system. Results showed a much lesser extent of oxygen mixing than reported Fe mixing from previous studies, even when dissolved Fe(II) is present. The oxygen mixing extents are 3.95 % more for goethite and 9.66 % more for ferrihydrite than their respective controls within 14 days. A consecutive atom exchange kinetic study indicated that O exchange is not inhibited by surface Fe sorptive site saturation, and that after 40d sorption experiment, the maximum O exchange is 54.96 % across reactors with different initial solid loadings and Fe(II)<sub>aq</sub> levels. The second part of this work examined the influence of aqueous Fe(II) on the sorption of selenium oxyanions (selenite and selenate) in Fe(II)<sub>aq</sub> - iron(III) systems. It was found that Fe(II)<sub>aq</sub> promotes selenium oxyanion sorption, and potential electron transfer occurred at the interface of goethite and selenite." @default.
- W159203420 created "2016-06-24" @default.
- W159203420 creator A5075391215 @default.
- W159203420 date "2021-05-10" @default.
- W159203420 modified "2023-10-16" @default.
- W159203420 title "Sorption of aqueous FE(II) on goethite investigated with stable oxygen isotopes" @default.
- W159203420 doi "https://doi.org/10.17760/d20128356" @default.
- W159203420 hasPublicationYear "2021" @default.
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