Abstract
This comparative study focused on the different methods used for the treatment of model waste water polluted with the chlorinated acid dye Mordant Blue 9. Low-cost and commercially available ionic liquids – benzalkonium chloride and Aliquat 336 – were applied as liquid ion-exchangers to precipitate the Mordant Blue 9 by way of ion pair formation between the bulky ammonium cations of ionic liquids and anions of the above dye. The decolorisation efficiency of the ionic liquid application and the effect on reduction of the absorbance, adsorbable organic halogens, chemical oxygen demand and biological oxygen demand were compared with the conventional coagulation, sorption and Fenton oxidation techniques.
Acknowledgements.
The authors wish to express their gratitude for the financial support received from the University of Pardubice and Ministry of Education, Youth and Sports (project no. SGSFChT 2015006).
Supplementary data
Supplementary data associated with this article (Possibilities of chlorinated dye Mordant Blue 9 removal from model waste water) can be found in the online version of this paper (DOI: 10.1515/chempap-2015-0225).
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