Removal of textile dye reactive black 5 by the cold-adapted, alkali- and halotolerant fungus Aspergillus flavipes MA-25 under non-sterile conditions


AYDOĞAN M. N., Arslan N. P.

DESALINATION AND WATER TREATMENT, cilt.56, sa.8, ss.2258-2266, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 8
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1080/19443994.2014.960463
  • Dergi Adı: DESALINATION AND WATER TREATMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2258-2266
  • Atatürk Üniversitesi Adresli: Evet

Özet

The aim of the present study was to investigate the potential of isolated fungus Aspergillus flavipes MA-25 to decolorize the textile dye reactive black 5. The fungus was found to be capable of removing the dye from the culture in a wide pH range (not only acidic but also neutral and alkaline pHs) at high salt concentrations (0-50g/L) and low temperatures (5-35 degrees C) under non-sterile conditions. It was also observed that the fungus could tolerate the dye at high initial concentrations up to 1g/L. Especially, no significant inhibitory effect on dye removal and fungal growth was seen at the initial dye concentrations of 0.4g/L. At initial dye concentration of 0.2g/L, complete removal of dye was achieved with 4.71g/L biomass production in 80h. The bioadsorption was the principle mechanism involved in dye removal by the fungus. Therefore, it was assumed that the fungus had a great potential for the treatment of dye-bearing textile effluents which are alkaline, cold, and saline.