CLAUDIA MARIA SIMONESCU, IULIANA-RALUCA TANASE, IRINA NICOLETA PURCARU, CHRISTU TARDEI, VIRGIL MARINESCU FIXED - BED COLUMN ADSORPTION STUDIES USING SYNTHETIC HYDROXYAPATITE FOR PB(II) REMOVAL FROM AQUEOUS SOLUTIONS In the present paper, the adsorptive Pb(II) removal from synthetic aqueous solutions using a 2 cm diameter hydroxyapatite column has been studied through column adsorption experiments by varying column depths (1, 2, 3, 4 cm) and flow rate (10, 15, 22.5 mL/min). Different types of synthetic hydroxiapatites have been involved in experiments. Column design parameters such as critical bed depth and adsorption capacity have been determined from experimental studies. The results revealed the effectiveness of synthetic hydroxyapatite porous beads in Pb(II) removal from aqueous synthetic solutions.
Keywords: water remediation, Pb(II) removal, hydroxyapatite, fixed-bed adsorption