ADSORPTION OF CR(III) FROM AQUEOUS MEDIUM BY HAZELNUT SHELL AND BATCH DESIGN

Kayak D.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.26, ss.1784-1790, 2017 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26
  • Basım Tarihi: 2017
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.1784-1790
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

In this study, the removal of Cr(III) ions from aqueous solutions by adsorption using the hazelnut shell (Corylus avellana) was investigated in batch experiments. The influence of contact time (1360min), initial concentration of adsorbate (25-600 mg L-1), temperature (25-55 degrees C), pH (1-5) and adsorbent dose (0.1-1.2 g) on adsorption of Cr(III) were investigated. The adsorption isotherm studies were also performed. The maximum removal (%90.42) of Cr(III) ions from the Cr(III) solution with the initial concentration of 50 mg L-1 was achieved at pH=5 using 0.8 g hazelnut shell as the adsorbent. The Cr(III) adsorption capacity of hazelnut shell was calculated as 14.14 mg g(-1) at pH 5. Finally, a batch adsorber was designed.