Decolorization and degradation of reactive dye during the dyed cotton fabric rinsing process

作者：Luo Deng Hong; Zheng Qing Kang^*; Chen Sheng; Liu Qing Shu; Wang Xiu Xing; Guan Yu; Pu Zong Yao

来源：Water Science and Technology, 2010, 62(4): 766-775.

DOI：10.2166/wst.2010.307

• active oxidation
• COD
• decolorization
• dyeing wastewater
• reactive dye

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/H(2)O(2)) 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

• 出版日期2010
• 单位四川大学