Figure 1

XRD diffractograms and Rietveld analysis of the ion-adsorption clay size fractions: S1 (< 0.25 mm), S2 (0.25–0.5), S3 (0.5–2 mm).

XRD diffractograms and Rietveld analysis of the ion-adsorption clay size fractions: S1 (< 0.25 mm), S2 (0.25–0.5), S3 (0.5–2 mm).