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Biodegradation of textile dye using consortium of bacterial strains isolated from industrial dye effluent


 Dyes are discharged into water through many industries such as textile industries. Disposal of these dyes into the aquatic and terrestrial environment causes serious damage. Remarkable, processes for the treatment of dye waste involve biological remediation, catalytic oxidation, filtration, and sorption process. In this study the textile industrial dye effluent was treated using biodegradation method. The degradation of dye wastewater was determined by pure bacteria and its consortium isolated from textile effluent. Three different bacterial spp. were isolated and subjected to dye decolorization assays. The isolates were identified by 16sRNA as Aeromonas aquatic AE 235, Flavobacterium ginsengiterrae DCY55, Shewanella xiamenensis S4. The percentage decolorization process was detected by UV spectrophotometer. This process was obtained at 90, 94, 95 and 98% respectively by pure of three bacterial strains B1, B2, and B3 and its consortium BC. The degradation process of dye effluent was confirmed by FTIR analysis. The physico-chemical analysis of the effluent sample was investigated before and after biodegradation treatment to emphasize the process efficiency. The results indicated that these bacterial strains have good potential for the biodegradation of dye from textile waste water.