Kinetic studies of reactive azo dye decolorization in anaerobic/aerobic sequencing batch reactors

被引：33
|
作者：
Lourenco, Nidia D. [1 ]
Novais, Julio M. [1 ]
Pinheiro, Helena M. [1 ]
机构：
[1] Univ Tecn Lisboa, Ctr Engn Biol & Quim, Inst Super Tecn, P-1049001 Lisbon, Portugal
来源：
BIOTECHNOLOGY LETTERS | 2006年 / 28卷 / 10期
关键词：
color removal; decolorization kinetics; reactive azo dyes; textile wastewater;
D O I：
10.1007/s10529-006-9051-5
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
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.
引用
收藏
页码：733 / 739
页数：7
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