Recovery of iodide ions from geothermal water with silica with grafted alkylammonium groups

Effect of a number of factors (time of contact and mass ratio of phases, acidity and temperature of the medium, concentrations of macrocomponents of geothermal water) on the sorption recovery of iodide ions with 3-(octadecyldimethylammonio)propylsilica and 3-(trimethylammonio)propylsilica from aqueous solutions was studied. Sorption isotherms were discussed. The possibility of using 3-(octadecyldimethylammonio)-propylsilica for recovery of iodide ions from highly mineralized geothermal water was analyzed.