Optimization of bio-decolorization Acid Red ۱۴ usingbacterial strain isolated from wastewater

Background and Aim : Synthetic dyes are used today in textiles, food, paper, and plastics. Amongthe synthetic dyes, Azo dyes are the most widely used dyes in the textile industry, which enter theenvironment as pollutants through the wastewater of textile factories and pollute naturalecosystems such as soil, groundwater, and organisms. Therefore, it is very important to removethese contaminants from textile effluentsMethods : In this study, the ability to decolorize Acid Red ۱۴ dye was investigated using abacterial strain isolated from the effluent of textile factory in the presence of carbon sources offructose, xylose, lactose, and sucroseResults : This strain decolorized Acid Red ۱۴ dye at ۵۰ ppm with pH ۶ and temperature of ۳۷ ° Cin the incubator and the presence of fructose, after ۲۴ h, ۴۸ h and ۷۲ h, ۱۸%, ۴۲% and ۸۹%respectively.Conclusion : The analysis of the visible-ultraviolet spectrophotometer showed that thediscoloration is due to a microbial analysis by the bacterial strain. The bacteria strain isolated fromthe effluent of textile factory decolorized Acid Red ۱۴ dye at the especial condition

کلیدواژه ها:

Decolorization ، Azo dyes ، Bacteria ، Optimization ، Waste water