Effective bioremoval of reactive dye and heavy metals by Aspergillus versicolor


Tastan B. , Ertugrul S., Donmez G.

BIORESOURCE TECHNOLOGY, cilt.101, sa.3, ss.870-876, 2010 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 101 Konu: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.biortech.2009.08.099
  • Dergi Adı: BIORESOURCE TECHNOLOGY
  • Sayfa Sayıları: ss.870-876

Özet

In this study, bioaccumulation of heavy metal and dye by Aspergillus versicolor was investigated. Optimum pH values of the maximum heavy metal bioaccumulation was found as 6 for 50 mg/L Cr(VI), Ni(II) and 5 for Cu(II) ions with the 99.89%, 30.05% and 29.06% removal yield, respectively. The bioremoval of the dye up to 800 mg/L at pH 5 and 6 was investigated and 27.15% and 28.95% removal rates were measured respectively. The presence of Cr(VI) with dye, decreased the uptake yield for both pollutants. In the medium with Cu(II) and dye, dye removal was not affected by Cu(II), but Cu(II) removal rate increased from 29.06% to 37.91% by the existence of the dye. When Ni(II) and dye were combined, neither pollutant affected the other's removal yield. These results indicate that the isolated A. versicolor strain deserves attention as a promising bioaccumulator of heavy metal ions and reactive dyes in wastewater effluents. (C) 2009 Elsevier Ltd. All rights reserved.