Decolourization of an azo dye in aqueous solution by ozonation in a semi-batch bubble column reactor

@inproceedings{Abidin2015DecolourizationOA,
  title={Decolourization of an azo dye in aqueous solution by ozonation in a semi-batch bubble column reactor},
  author={Che Zulzikrami Azner Abidin and Muhammad Ridwan Fahmi and Ong Soon-An and Siti Nurfatin Nadhirah Mohd Makhtar and Nazzery Rosmady Rahmat},
  year={2015}
}
The oxidative degradation of the azo dye Reactive Red 120 by ozonation was investigated. The decolourization was carried out by bubbling ozone at the bottom of a bubble column reactor containing the dye solution. The colour, chemical oxygen demand, and total organic carbon removal were evaluated, and the contaminants were characterized based on the changes in UV-Vis and FT-IR spectra. It was observed that changes of UV-Vis spectra represent the disappearance of both azo and aromatic groups… CONTINUE READING

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