Dear friends,
My research topic is "Dye degradation or colour removal using constructed wetland technology (a biological treatment system)". I am using a reactive azo dye (Reactive Yellow 145, RY145) for my experimental studies. As per literature, decolourization or degradation of azo dye by microorganisms starts with reductive cleavage of azo bond under anaerobic conditions. Although, this step leads to decolourization of dye and generates amines of the dye related structures that are not degraded under anaerobic conditions. However, such amines are reported to be biotransformed under aerobic conditions. Both anaerobic and aerobic conditions are coexisting in my wetland reactor. As part of my thesis work, I wanted to predict the possible dye degradation products (intermediate compounds). Kindly help me in this regard. I am attaching herewith the structure of the RY145 dye.
Hello Christy,
many thanks for sharing this very interesting technical question with the RG community. The degradation of azo dyes in agriculture is clearly an important research topic. For the dye Reactive Yellow 145 (RY145) there are a few relevant studies to be found in the literature. For example, please have a look at the following potentially useful articles:
Eco-friendly Biodegradation of Reactive Yellow 145 by newly isolated Bacillus boroniphilus from industrial effluent
Article Eco-friendly Biodegradation of Reactive Yellow 145 by newly ...
and
Eco-friendly decolorization and degradation of reactive yellow 145 textile dye by Pseudomonas aeruginosa and Thiosphaera pantotropha
Article Eco-friendly decolorization and degradation of reactive yell...
As you can see, it often pays off to search RG directly for helpful literature references. The first article is even freely available as public full text. The second one has not yet been posted as public full text, but the paper is very recent (published 2020) and all three authors have RG profiles. Thus it should be no problem to request the full text directly from one of the authors via RG.
For a more general overview about the topic please also see the following review article which has been published Open Access (please see attached pdf file):
Recent Achievements in Dyes Removal Focused on Advanced
Oxidation Processes Integrated with Biological Methods
I hope this helps. Good luck with your research and best wishes, Frank Edelmann
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