期刊
BIORESOURCE TECHNOLOGY
卷 130, 期 -, 页码 681-688出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.12.097
关键词
Decolorization; Industrial wastewater; Lignocellulosic material; Indigenous decolorizers; Liquid chromatography coupled with mass spectroscopy (LC/MS)
资金
- Swedish International Development Cooperation Agency (SIDA)
- Swedish Research Council Formas
In the present study the degradation of two common azo dyes used in dye houses today, Reactive Black 5 and Reactive Red 2 was evaluated in biofilters. In two experiments, bioreactors performed over 80% decolorization at a hydraulic retention time of only 28.4 h with little production of metabolites. Molecular analyses showed a diverse and dynamic bacterial community composition in the bioreactors, including members of the Bacteroidetes, Acinetobacter (Gammaproteobacteria) and Clostridium (Firmicutes) that possess the capacity to reduce azo dyes. Collectively, the results indicate that the development of mixed bacterial communities from natural biomaterials contributes to an efficient and robust degradation performance in bioreactors even at high concentration of dyes. (C) 2012 Elsevier Ltd. All rights reserved.
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