“…Their experiments were done in a synthetic groundwater with high concentrations of Na + , Ca +2 , Cl -, and SO 4 -2 (2000, 2170, 6176, and 985 mg/L, respectively), indicating that the presence of one or more of these ions changed the surface chemistry of the hematite to favor iodate sorption. Relatively strong sorption of iodate to freshly precipitated aluminum hydroxide has been measured, but sorption decreased as the aluminum hydroxide aged (Musić et al 1979).…”