Bioremoval of textile dyes with different chemical structures by Aspergillus versicolor in molasses medium


Tastan B. , Karatay S. E. , Donmez G.

WATER SCIENCE AND TECHNOLOGY, vol.66, no.10, pp.2177-2184, 2012 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 66 Issue: 10
  • Publication Date: 2012
  • Doi Number: 10.2166/wst.2012.441
  • Title of Journal : WATER SCIENCE AND TECHNOLOGY
  • Page Numbers: pp.2177-2184

Abstract

Bioremoval of 17 dyes with different chemical structures by Aspergillus versicolor was detected in this study. Maxi Ion Red GRL (MR-GRL), Everdirect Fast Black VSF (EFB-VSF) and Brillant Blue R (BB-R) were removed better by fungal mycelia. Optimum pH values were found as 6 for all three dyes. In further experiments in the highest dye concentrations tested in this study, 58.3, 100 and 49% removal yields and 14.8, 12.6, 9.0 q(m) values were found for MR-GRL, EFB-VSF and BB-R, respectively. Chemical oxygen demand (COD) reduction after seven days of incubation period and role of laccase activity of Aspergillus sp. were also investigated. COD reduction and laccase activities were 55.6% and 2.93 U/mL for MR-GRL, 90.7% and 3.0 U/mL for EFB-VSF and 69.0% and 1.79 U/mL for BB-R, respectively. According to these results A. versicolor deserves notable attention for removal of these dyes in wastewater effluents.