Investigation of selectivity and kinetic behavior of strong-base ion exchange resin Purolite A 520E for nitrate removal from aqueous solution


SAMATYA S., YUKSEL U., Arda M. , Kabay N. , YUKSEL M.

SEPARATION SCIENCE AND TECHNOLOGY, vol.41, no.13, pp.2973-2988, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 13
  • Publication Date: 2006
  • Doi Number: 10.1080/01496390600854560
  • Title of Journal : SEPARATION SCIENCE AND TECHNOLOGY
  • Page Numbers: pp.2973-2988

Abstract

The aim of this work is to present experimental results on the removal of nitrate by nitrate selective ion exchange resin, Purolite A 520E. The resin particle size, nitrate concentration, temperature, and stirring speed were investigated as experimental parameters and the optimum conditions for nitrate removal were determined. Nitrate removal by strong base anion exchange resin Purolite A 520E was carried out with the batch method in the presence of chloride and sulfate ions. The existence of a high concentration of competing ions in a solution resulted in a reduction of nitrate removal. Nitrate removal ratios decreased from 98% to 85% and 88%, respectively, in the presence of chloride and sulfate ions when the chloride and sulfate ratios were increased in solution. The process kinetics were predicted by using Homogenous Diffusion Models. It was seen that about 98% of nitrate in the aqueous solution could be removed using optimum conditions.