The Evaluation of Affection of Methylobacterium extorquens - Modified Silica Fume for Adsorption Cadmium (II) Ions From Aqueous Solutions Affection


NADAROĞLU H. , ÇELEBİ N. , KALKAN E. , DİKBAŞ N.

KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI, vol.19, no.3, pp.391-397, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 3
  • Publication Date: 2013
  • Doi Number: 10.9775/kvfd.2012.7865
  • Title of Journal : KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Page Numbers: pp.391-397

Abstract

In this present study, it was investigated for adsorbtive removal of cadmium (Cd) ions from aqueous solutions using Methylobacterium extorquens - modified silica fume waste material. Batch adsorption experiments have been performed as a function of pH, contact time, temperature and adsorbent dosage. The optimum results were obtained at pH 5.0, contact time of 60 min, temperature of 25 degrees C and an adsorbent dose of 1 mg/mL. The adsorption data was correlated with Langmuir and Freundlich adsorption models. The maximum adsorption capacity obtained from Langmuir adsorption model was 166.67 mg/g. The results show that the bacteria - modified silica fume could be used for the treatment of aqueous solutions containing Cd as an alternative low cost adsorbent.