Decolorization of reactive dyes, Part I: eco-friendly approach of reactive dye effluents decolorization using cationized sugarcane bagasse
Abstract
Purpose
This paper aims to decolorize the effluents of textile Reactive Orange 5 and Reactive Red 195 dyes by using cationized sugarcane bagasse.
Design/methodology/approach
Cationized sugarcane bagasse was prepared and used as an adsorbent for both reactive and hydrolyzed reactive dyes. Characterization of the sugarcane bagasse structure resulted by cationization was monitored using Fourier transform–infrared, while morphologically was detected using scanning electron microscopy and X-ray powder diffraction.
Findings
The maximum adsorption capacities are 805, 1,664, 1,772 and 1,596 mg/g for Hydrolyzed Red 195, Hydrolyzed Orange 5, Reactive Red 195 and Reactive Orange 5 dyes, respectively.
Research limitations/implications
Factors affecting the percentage of dye removal were optimized on different parameters such as adsorbent dose and treatment time. The data were discussed using the Langmuir and Freundlich Models of adsorption.
Practical implications
The reuse of hydrolyzed reactive dyebaths gives reasonably good fastness properties on nylon fabrics.
Social implications
The study has enabled the production of an eco-friendly and less expensive method of reactive dye effluent decolorization.
Originality/value
The study provides a potentially simple approach to decolorize dye effluents of Reactive Orange 5, Red 195 dyes and also the reuse of hydrolyzed reactive dyebaths for dyeing nylon.
Keywords
Citation
Aly, A.A., Mahmoud, S.A. and El-Apasery, M.A. (2018), "Decolorization of reactive dyes, Part I: eco-friendly approach of reactive dye effluents decolorization using cationized sugarcane bagasse", Pigment & Resin Technology, Vol. 47 No. 2, pp. 108-115. https://doi.org/10.1108/PRT-10-2016-0092
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited