Anaerobic Biodecolorization of Remazol Dye by a Strain of Enterobacter Isolated from Textile Sludge  

作　　者：陈刚 陈晔 黄满红 陈亮 

机构地区：[1]School of Environmental Science and Engineering, Donghua University

出　　处：《Journal of Donghua University(English Edition)》2011年第3期336-339,共4页东华大学学报（英文版）

基　　金：Fundamental Research Funds for the Central Universities of China(No.2011D11309);Shanghai Leading Academic Discipline,China(No.B604)

摘　　要：Enterobacter GY-1 gained from a lab scale anaerobic-anoxic-aerobic (A2O) process treating textile effluent can effectively decolorize remazol dye. Under anaerobic condition, 91% of this remazol dye is decolorized, which is much higher than under aerobic condition. The optimum pH is 7 and the optimum temperature is 35 ℃ for the remazol dye decolorization by GY-1. Anthraquinone dyes and monoazo dyes are decolorized more efficiently by GY-1 than other dyes tested decolorized. GY-1 can not decolorize the remazol dye when it is the sole carbon source. Microbial cometabolism and decolorization of dye take place in the presence of some other carbon source called cometabolic substrate. The cometabolic substrate can be glucose, starch, peptone, beef extract, etc. The change of molecular structure of the dye before and after decolorized by GY-1 is studied by UV-Vis absorption spectrum. The results indicate that its molecular structure is changed evidently.Enterobacter GY-1 gained from a lab scale anaerobic-anoxic-aerobic （A2O） process treating textile effluent can effectively decolorize remazol dye. Under anaerobic condition, 91% of this remazol dye is decolorized, which is much higher than under aerobic condition. The optimum pH is 7 and the optimum temperature is 35 ℃ for the remazol dye decolorization by GY-1. Anthraquinone dyes and monoazo dyes are decolorized more efficiently by GY-1 than other dyes tested decolorized. GY-1 can not decolorize the remazol dye when it is the sole carbon source. Microbial cometabolism and decolorization of dye take place in the presence of some other carbon source called cometabolic substrate. The cometabolic substrate can be glucose, starch, peptone, beef extract, etc. The change of molecular structure of the dye before and after decolorized by GY-1 is studied by UV-Vis absorption spectrum. The results indicate that its molecular structure is changed evidently.

关 键 词：Enterobacter GY-1 remazol dye DECOLORIZATION biodegradation 

分 类 号：X522[环境科学与工程—环境工程]