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Possibilities for removal of chlorinated dye Mordant Blue 9 from model waste water‡

Miroslav Šimek, Petr Mikulášek, Petr Kalenda, and Tomáš Weidlich

aInstitute of Environmental and Chemical Engineering, Faculty of Chemical Technology, University of Pardubice, Studentská 95, 532 10 Pardubice, Czech Republic

 

E-mail: tomas.weidlich@upce.cz

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.

Keywords: AOX – Fenton oxidation – adsorption – ionic liquid – ion pair – coagulation

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2015-0225

 

Chemical Papers 70 (4) 470–476 (2016)

Friday, September 17, 2021

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