Dyeing process of textile consumes large quantities of water, which results in huge amounts of colored wastewater. Most of the dye wastewater treating methods focused on the treatment of wastewater after the rinsing process of dyed textile. In this paper, tetraacetylethylenediamine/hydrogen peroxide (TAED/H2O2) active oxidation (AO) system was developed to rinse dyed textile and decolorize the rinsing wastewater simultaneously. The results indicated that the decolorization ratio of the rinse effluent obtained by AO method were in the range of 51.72%–84.15% according to different dyes and the COD value decreased more than 30% compared with that of traditional rinsing process. The decolorization kinetics investigation showed that the decolorization of dyes during AO rinsing process followed the law of pseudo-first order kinetics. The result of UV-Vis and UPLC-MS analysis demonstrated that the dye was degraded into colorless organic molecular fragments and partly mineralized during the AO rinsing process.
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Research Article|
August 01 2010
Decolorization and degradation of reactive dye during the dyed cotton fabric rinsing process
Deng-Hong Luo;
1College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, Sichuan 610065, China E-mail: luoshifly@gmail.com; zhengqingk@scu.edu.cn; chensheng@scu.edu.cn; liuqingshu1229@126.com
E-mail: luoshifly@gmail.com
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Qing-Kang Zheng;
Qing-Kang Zheng
1College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, Sichuan 610065, China E-mail: luoshifly@gmail.com; zhengqingk@scu.edu.cn; chensheng@scu.edu.cn; liuqingshu1229@126.com
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Sheng Chen;
Sheng Chen
1College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, Sichuan 610065, China E-mail: luoshifly@gmail.com; zhengqingk@scu.edu.cn; chensheng@scu.edu.cn; liuqingshu1229@126.com
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Qing-Shu Liu;
Qing-Shu Liu
1College of Light Industry, Textile and Food Engineering, Sichuan University, Chengdu, Sichuan 610065, China E-mail: luoshifly@gmail.com; zhengqingk@scu.edu.cn; chensheng@scu.edu.cn; liuqingshu1229@126.com
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Xiu-Xing Wang;
Xiu-Xing Wang
2Quartermaster Equipment Institute of CLPA General Logistics Department, Beijing 100010, China E-mail: wangxx818@qq.com
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Yu Guan;
Yu Guan
3Bureau of Quartermaster Military Representation of the General Logistics Department, Chengdu, Sichuan 610015, China E-mail: pupil0323@126.com
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Zong-Yao Pu
Zong-Yao Pu
4Sichuan Textile Industry Research Institute, Chengdu, Sichuan 610015, China E-mail: puzongyao@hotmaill.com
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Water Sci Technol (2010) 62 (4): 766–775.
Citation
Deng-Hong Luo, Qing-Kang Zheng, Sheng Chen, Qing-Shu Liu, Xiu-Xing Wang, Yu Guan, Zong-Yao Pu; Decolorization and degradation of reactive dye during the dyed cotton fabric rinsing process. Water Sci Technol 1 August 2010; 62 (4): 766–775. doi: https://doi.org/10.2166/wst.2010.307
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