New Inorganic Ion-exchange Material for the Selective Removal of Fluoride from Potable Water Using Ion-selective Electrode

Abstract

An ion-exchange procedure involving the selective retention of fluoride ions from aqueous
\nsolutions containing 1, 5, 10, 20 and 50 mg F<sup>-</sup> L<sup>-1</sup> using a new inorganic ion exchanger zirconium(IV)
\noxide-ethanolamine ZrO-EA and its application to fluoride removal from potable water has been
\ndescribed. A column equilibrium studies, batch process and different analytical parameters such as
\nconcentration, pH and temperature for the quantitative recoveries of F<sup>-</sup> ion using ZrO-EA exchanger
\nwere investigated and determined by an ion selective electrode. The effect of some other anions that
\nmight be present with the analyte was also examined. The column experiments showed a quantitative
\ncollection of fluoride at low concentration in water samples with more than 96% recovery.