Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77743
Title: Minimizing freshwater consumption in the wash-offstep in textile reactive dyeing by catalytic ozonation with carbon aerogel hosted bimetallic catalyst
Authors: Hu, E 
Shang, S 
Tao, X 
Jiang, S 
Chiu, KL 
Keywords: Catalytic ozonation
Chemical oxidation demand
Effluent color
Fabric color quality
Minimizing water consumption
Reactive dyeing
Wash-off
Waste effluent recycling
Issue Date: 2018
Publisher: Molecular Diversity Preservation International (MDPI)
Source: Polymers, 2018, v. 10, no. 2, 193 How to cite?
Journal: Polymers 
Abstract: In textile reactive dyeing, dyed fabrics have to be rinsed in the wash-offstep several times to improve colorfastness. Thus, the multiple rinsing processes drastically increase the freshwater consumption and meanwhile generate massive waste rinsing effluents. This paper addresses an innovative alternative to recycle the waste effluents to minimize freshwater consumption in the wash-offstep. Accordingly, catalytic ozonation with a highly effective catalyst has been applied to remedy the waste rinsing effluents for recycling. The carbon aerogel (CA) hosted bimetallic hybrid material (Ag-Fe2O3@CA) was fabricated and used as the catalyst in the degradation of residual dyes in the waste rinsing effluents by ozonation treatments. The results indicate the participation of Ag- Fe2O3@CA had strikingly enhanced the removal percentage of chemical oxidation demand by 30%. In addition, it has been validated that waste effluents had been successfully reclaimed after catalytic ozonation with Ag-Fe2O3@CA. They could be additionally reused to reduce freshwater consumption in the wash-offstep, but without sacrificing the color quality of corresponding fabrics in terms of color difference and colorfastness. This study may be the first to report the feasibility of catalytic ozonation in minimization of freshwater consumption in the wash-offstep in textile reactive dyeing.
URI: http://hdl.handle.net/10397/77743
ISSN: 2073-4360
DOI: 10.3390/polym10020193
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

3
Citations as of Sep 18, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.