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	Bacterial decolorization and degradation of the reactive dye Reactive Red 180 by Citrobacter sp CK3
	Wang, Hui ; Su, Jian Qiang ; Zheng, Xiao Wei ; Tian, Yun ; Xiong, Xiao Jing ; Zheng, Tian Ling ; Zheng TL(郑天凌)
	2009-06
关键词	Citrobacter sp CK3 Decolorization Degradation Reactive Red 180
英文摘要	A bacterial strain, CK3, with remarkable ability to decolorize the reactive textile dye Reactive Red 180, was isolated from the activated sludge collected from a textile mill. Phenotypic characterization and phylogenetic analysis of the 16S rDNA sequence indicated that the bacterial strain belonged to the genus Citrobacter. Bacterial isolate CK3 showed a strong ability to decolorize various reactive textile dyes, including both azo and anthraquinone dyes. Anaerobic conditions with 4 g l(-1) glucose, pH = 7.0 and 32 degrees C were considered to be the optimum decolorizing conditions. Citrobacter sp. CK3 grew well in a high concentration of dye (200 mg l(-1)), resulting in approximately 95% decolorization extent in 36 h. and could tolerate up to 1000 mg l(-1) of dye. UV-vis analyses and colorless bacterial cells suggested that Citrobacter sp. CK3 exhibited decolorizing activity through biodegradation, rather than inactive surface adsorption. It is the first time that a bacterial strain of Citrobacter sp. has been reported with decolorizing ability against both azo and anthraquinone dyes. High decolorization extent and facile conditions show the potential for this bacterial strain to be used in the biological treatment of dyeing mill effluents. (C) 2008 Elsevier Ltd. All rights reserved.; Program for Changjiang Scholars and Innovative Research Team in University [40521003]; Science-Technology Project of Fujian Provence, China [2005YZ1023]; Science-Technology Project of Xiamen, China [3502Z20073009]
语种	英语
出版者	ELSEVIER SCI LTD
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1016/j.ibiod.2008.11.006]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Wang, Hui,Su, Jian Qiang,Zheng, Xiao Wei,et al. Bacterial decolorization and degradation of the reactive dye Reactive Red 180 by Citrobacter sp CK3[J],2009.
APA	Wang, Hui.,Su, Jian Qiang.,Zheng, Xiao Wei.,Tian, Yun.,Xiong, Xiao Jing.,...&郑天凌.(2009).Bacterial decolorization and degradation of the reactive dye Reactive Red 180 by Citrobacter sp CK3..
MLA	Wang, Hui,et al."Bacterial decolorization and degradation of the reactive dye Reactive Red 180 by Citrobacter sp CK3".(2009).

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