Kinetic Studies of Reactive Azo Dye Decolorization in Anaerobic/aerobic Sequencing Batch Reactors

被引：0
|
作者：
Nídia D. Lourenço
Júlio M. Novais
Helena M. Pinheiro
机构：
[1] Centro de Engenharia Biológica e Química,
[2] Instituto Superior Técnico,undefined
来源：
Biotechnology Letters | 2006年 / 28卷
关键词：
Color removal; Decolorization kinetics; Reactive azo dyes; Textile wastewater;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The decolorization kinetics of Remazol Brilliant Violet 5R (RBV-5R) and Remazol Black B (RB-B) (mono- and diazo reactive dyes, respectively) was investigated in the first 9 h (anaerobic phase) of a 24-h cycle anaerobic/aerobic sequencing batch reactor (SBR). Two distinct, successive decolorization periods were observed for both dyes, apparently due to different decolorization mechanisms. The apparent first-order rate constants were much lower for the second periods. First-order kinetics were apparently followed for both periods of RBV-5R but not for the first decolorization period of RB-B, possibly due to the occurrence of mass transfer limitations.
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页码：733 / 739
页数：6
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