Microalgae Immobilized by Nanofibrous Web for Removal of Reactive Dyes from Wastewater


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Keskin N. O. S. , Celebioglu A., UYAR T., Tekinay T.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, cilt.54, sa.21, ss.5802-5809, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 54 Konu: 21
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1021/acs.iecr.5b01033
  • Dergi Adı: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
  • Sayfa Sayıları: ss.5802-5809

Özet

In this study, we have developed microalgae immobilized by polysulfone nanofibrous web (microalgae/PSU-NFW) for the removal of reactive dyes (Remazol Black 5 (RB5) and Reactive Blue 221 (RB221). Here, an electrospinning technique was used to produce polysulfone nanofibrous web (PSU-NFW) as a free-standing material on which microalgae Chlamydomona reinhardtii was immobilized on PSU-NFW. The decolorization capacities of microalgae/PSU-NFW were significantly higher than that of pristine PSU-NFW. The decolorization rate for RB5 was calculated as 72.97 +/- 0.3% for microalgae/PSU-NFW, whereas it was 12.36 +/- 0.3% for the pristine PSU-NFW. In the case of RB221 solution, decolorization rates were achieved as 30.2 +/- 0.23 and 5.51 +/- 0.4% for microalgae/PSU-NFW and pristine PSU-NFW, respectively. Reusability tests revealed that microalgae/PSU-NFW can be used in at least three successive decolorization steps in which the decolorization rate of the RB5 was found to be 51 +/- 0.69% after the third reuse step. These results are promising and therefore suggest that microalgae/PSU-NFW could be applicable for the decolorization of dyes because of their versatility and reusability.