Boron removal from aqueous solutions by ion-exchange resin: Column sorption-elution studies


Koese T. E. , ÖZTÜRK N.

JOURNAL OF HAZARDOUS MATERIALS, vol.152, no.2, pp.744-749, 2008 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 152 Issue: 2
  • Publication Date: 2008
  • Doi Number: 10.1016/j.jhazmat.2007.07.041
  • Journal Name: JOURNAL OF HAZARDOUS MATERIALS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.744-749
  • Keywords: Boron, ion-exchange, Dowex 2 x 8, column study, breakthrough curve, GEOTHERMAL POWER-PLANT, WASTE-WATER, ACTIVATED-SLUDGE, REVERSE-OSMOSIS, ADSORPTION, WASTEWATERS, BIOSORPTION, MEMBRANES, RECOVERY, TURKEY

Abstract

A column sorption-elution study was carried out by using a strong base anion-exchange resin (Dowex 2 x 8) for the removal of boron from aqueous solutions. The breakthrough curve was obtained as a function of feed flow rate and the total and breakthrough capacity values of the resin were calculated. The boron on the resin was quantitatively eluted with 0.5 M HCl solution at different flow rates. Three consecutive sorption-elution-washing-regeneration-washing cycles were applied to the resin in order to investigate the reusability of the ion-exchange resin. Total capacity values remained almost the same after three sorption-elution-regeneration cycles. The Thomas and the Yoon-Nelson models were applied to experimental data to predict the breakthrough curves and to determine the characteristic column parameters required for process design. The results proved that the models would describe the breakthrough curves well. (c) 2007 Elsevier B.V. All rights reserved.