Abstract
The escalating demand for clean water due to rapid industrialization underscores the urgency for effective wastewater treatment. Synthetic organic dyes, extensively used in the textile industry, pose a significant environmental threat when discharged into aquatic ecosystems. Addressing this challenge necessitates the development of sustainable methods for degrading hazardous dyes. Bioremediation emerge as a promising approach to mitigate their impact. In this study, three dye-decolorizing bacteria were isolated from textile industry effluent using selective enrichment culture. Bacillus cereus (B. cereus), Micrococcus roseus (M. roseus), and Pseudomonas aeruginosa (P. aeruginosa) were identified as potential isolates. Spectrophotometric analysis revealed P. aeruginosa to exhibit the highest decolorization efficiency (99.09 %), followed by B. cereus (85.63 %), M. roseus (80.22 %), and a mixed culture of the three isolates (78.36 %) at 37 °C. Bioremediation efficacy was confirmed under optimized conditions (0.1 % glucose, 0.05 % yeast extract, pH 7.0, and 35 °C), with physiochemical analyses of textile effluent supporting the process. These indigenous bacteria hold promise for constructing cost-effective biological systems to treat textile effluent, offering insights into effective wastewater bioremediation strategies. Exploring the monoculture and consortia of three bacterial strains on dye degradation.
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