Decolourization of Novacron Blue and Novacron Super Black Azo Dyes by <I>Bacillus</I> spp Isolated from Textile Effluents in Bangladesh

Authors

  • K. R. Mahbub
  • B. Morium
  • M. M. Ahmed
  • M. A. Akond
  • S. Andrews University of South Australia, Adelaide, SA 5095, Australia

DOI:

https://doi.org/10.3329/jsr.v7i1-2.18682

Keywords:

Textile effluent, Azo dye, Decolorization, Bacillus.

Abstract

Effluents containing azo dyes from textile and dyeing industries cause serious pollution to aquatic environments. In this study, azo dye decolourization potential of five bacterial isolates was examined in different physicochemical conditions such as pH, temperature and glucose concentrations. Based on biochemical characteristics the isolates were identified as Bacillus badius (isolate A3 and A4) and Bacillus sphaericus (isolate A5, B8, C5). These bacteria showed decolourization of two experimental azo dyes, Novacron Blue and Novacron Super Black at different temperatures, pH and glucose concentrations up to 92% after 72 h of incubation. Decolourization increased with time and temperature. Neutral to alkaline pH with increased concentration of glucose facilitated dye removal. The maximum decolourization (92%) of experimental dyes was observed at 35°C, pH 7-8 with 2% glucose. Bacillus badius demonstrated better decolourization.


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Author Biography

S. Andrews, University of South Australia, Adelaide, SA 5095, Australia

Professor of Microbiology

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Published

2015-05-01

How to Cite

Mahbub, K. R., Morium, B., Ahmed, M. M., Akond, M. A., & Andrews, S. (2015). Decolourization of Novacron Blue and Novacron Super Black Azo Dyes by <I>Bacillus</I> spp Isolated from Textile Effluents in Bangladesh. Journal of Scientific Research, 7(1-2), 45–53. https://doi.org/10.3329/jsr.v7i1-2.18682

Issue

Vol. 7 No. 1-2 (2015)

Section

Section B: Chemical and Biological Sciences

License

© Journal of Scientific Research

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Articles published in the "Journal of Scientific Research" are Open Access articles under a Creative Commons Attribution-ShareAlike 4.0 International license (CC BY-SA 4.0). This license permits use, distribution and reproduction in any medium, provided the original work is properly cited and initial publication in this journal. In addition to that, users must provide a link to the license, indicate if changes are made and distribute using the same license as original if the original content has been remixed, transformed or built upon.