Seyedeh Azam Fazel Chaharmahali - Cell and Molecular Biology department, Faculty of Chemistry, University of Kashan, Kashan, Iran
Zohreh Zahraei - Cell and Molecular Biology department, Faculty of Chemistry, University of Kashan, Kashan, Iran
Fereshteh Jookar Kashi - Cell and Molecular Biology department, Faculty of Chemistry, University of Kashan, Kashan, Iran

A variety of synthetic dyestuffs released by the textile industry pose a threat to environmental safety. Existing effluent treatment procedures are unable to remove recalcitrant azo dyes completely from effluents because of their color fastness, stability and resistance to degradation. Bacterial decolorization and degradation of azo dyes has gained under certain environmental conditions momentum as a method of treatment, these are inexpensive, eco-friendly and can be applied to wide range of such dyes. The aim of this study was to optimize decolorization of Reactive Red 195 dye using bacterial isolate F14. Different parameters such as pH, dye concentrations and aerobic/anaerobic and static conditions were optimized for decolorization of Reactive Red 195 by F14 strain. The maximum rate of decolorization was observed in 50 mg/l of dye concentration, pH 8 and aerobic conditions

Bacteria strain, Decolorization, Reactive Yellow 145, Optimization, Textile effluents