Strontium leachability in calcareous sand and gypsum
Description
The concentrations of Sr, K, Ca, I in the eluates from the column experiments with calcareous sand and gypseous soil. Data repository for the manuscript. The data were processed from the raw data including dilution factor.
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The column experiments varied in the matrix, mobile phases, and modes of injected solution (IS). Matrix was sand or gypsum, mobile phase artificial underground water (AUGW) or mQ water (mQ-w), and modes of IS were pulse or continuous flow. When pulse mode, 2 ml of IS was injected from the valve injector into the column. Before and after the injection, the mobile phase (water or AUGW) flew through the column. In continuous mode, the soil in the column was first soaked with mobile phase, but once IS was injected, it continuously flew through the column until the end of the experiment. Application of IS into AUGW mobile phase represents the transient state when the salinity is dramatically changed: i) mQ-w < IS, ii) AUGW >> IS. The elemental analyses were carried out on ICP-OES (Thermo Scientific iCAP 7600). The calibration was made with the standard (PerkinElmer Pure Plus). The concentration was an average of triple measurements from the wavelengths 216.596 nm for Sr, 768.896 nm for K, and 317.933 nm for Ca. The concentration was determined as the average of three measurements taken at the wavelengths of 216.596 nm for Sr, 768.896 nm for K, and 317.933 nm for Ca. Raw data were treated with the dilution factor. Details are in the manuscript.